PubAg

Main content area

You searched for: Subject "poly(vinyl chloride)" Remove constraint Subject: "poly(vinyl chloride)" Publication Year 2018 Remove constraint Publication Year: 2018 Subject temperature Remove constraint Subject: temperature
Start Over

Search

32  Search Results

1 - 32 of 32
Number of results to display per page

Search Results

1. A novel treatment method of PVC-medical waste by near-critical methanol: Dechlorination and additives recovery

Author:
Qi, Yingying; He, Jiahuan; Li, Yifan; Yu, Xuan; Xiu, Fu-Rong; Deng, Yuehua; Gao, Xiang
Source:
Waste management 2018 v.80 pp. 1-9
ISSN:
0956-053X
Subject:
poly(vinyl chloride),   etc   ; additives; dechlorination; dibutyl phthalate; dimethyl phthalate; esterification; lubricants; methanol; palmitic acid; plasticizers; stabilizers; stearic acid; temperature; urine; waste management; wastes;     Show all 16 Subjects
Abstract:
... Before PVC-medical waste is subjected to a waste-to-energy recovery process, the dechlorination and the recovery of additives such as plasticizer, stabilizer, and lubricant are quite important and attractive. In this work, a novel process was developed for the dechlorination and the recovery of additives from PVC-medical waste such as tube for transfusion (TFT) and sample collector for urine (SCFU ...
DOI:
10.1016/j.wasman.2018.08.052

2. Antigen detection with thermosensitive hydrophilicity of poly(N-isopropylacrylamide)-grafted poly(vinyl chloride) fibrous mats

Author:
Guo, Jian-Wei; Lin, Zhen-Yu; Huang, Bohr-Ran; Lu, Chien-Hsing; Chen, Jem-Kun
Source:
Journal of materials chemistry 2018 v.6 no.21 pp. 3486-3496
ISSN:
2050-7518
Subject:
poly(vinyl chloride),   etc   ; antibodies; antigen detection; antigens; color; contact angle; detection limit; hydrophilicity; hydrophobicity; sodium azide; temperature; thermosensitivity;     Show all 12 Subjects
Abstract:
... Poly(vinyl chloride) (PVC) was electrospun as fibrous mats to treat with NaN₃. The secondary chlorines of PVC were modified to generate azido-terminated electrospun PVC fibrous mats (EPFMs). Sequentially, propargyl-terminated poly(N-isopropylacrylamide) (PNIPAAm) was further synthesized and grafted onto the azido-terminated EPFMs via a click reaction resulting in a scale-like structure on the fibe ...
DOI:
10.1039/c8tb00870a

3. Assessment of Greenhouse Gas Emissions from Different Land-Use Systems: A Case Study of CO2 in the Southern Zone of Ghana

Author:
MacCarthy, Dilys Sefakor; Zougmoré, Robert B.; Akponikpè, Pierre Bienvenu Irénikatché; Koomson, Eric; Savadogo, Patrice; Adiku, Samuel Godfried Kwasi
Source:
Applied and environmental soil science 2018 v.2018
ISSN:
1687-7675
Subject:
poly(vinyl chloride),   etc   ; carbon dioxide; carbon dioxide production; carbon sequestration; case studies; cattle; clay soils; corn; developing countries; edaphic factors; food security; forests; global warming; greenhouse gas emissions; greenhouse gases; land use; microbial activity; paddies; sandy soils; soybeans; temperature; texture; trapping; water content; woodlots; Ghana;     Show all 26 Subjects
Abstract:
... The emission of greenhouse gases (GHGs) results in global warming and climate change. The extent to which developing countries contribute to GHG emissions is not well known. This study reports findings on the effects of different land-use systems on GHG emissions (CO₂ in this case) from two locations in the southern zone of Ghana, West Africa. Site one (located at Kpong) contained a heavy clay soi ...
DOI:
10.1155/2018/1057242

4. Average and Local Tg Shifts of Plasticized PVC from Simulations

Author:
Zhou, Yuxing; Milner, Scott T.
Source:
Macromolecules 2018 v.51 no.10 pp. 3865-3873
ISSN:
1520-5835
Subject:
poly(vinyl chloride),   etc   ; glass transition; mechanical properties; phthalates; plasticizers; temperature; thermodynamics;     Show all 7 Subjects
Abstract:
... The effects of plasticizers on the dynamics of polymer/plasticizer blends are practically important and theoretically interesting. Although it is well-known that plasticizers alter the glass transition of polymers, a microscopic view of the interplay between polymers and plasticizers and consequently the Tg shifts is not completely clear. In this work, we perform atomistic simulations on plasticiz ...
DOI:
10.1021/acs.macromol.8b00271

5. Biochar from sewage sludge and pruning trees reduced porewater Cd, Pb and Zn concentrations in acidic, but not basic, mine soils under hydric conditions

Author:
Álvarez-Rogel, José; Tercero Gómez, María del Carmen; Conesa, Héctor M.; Párraga-Aguado, Isabel; González-Alcaraz, María Nazaret
Source:
Journal of environmental management 2018 v.223 pp. 554-565
ISSN:
0301-4797
Subject:
poly(vinyl chloride),   etc   ; Sarcocornia fruticosa; acid soils; bioaccumulation; biochar; cadmium; calcium carbonate; flooded conditions; lead; mined soils; organic carbon; pH; plant growth; plant litter; pollutants; redox potential; roots; sewage sludge; soil amendments; temperature; trees; water solubility; water table; wet environmental conditions; wetlands; zinc;     Show all 26 Subjects
Abstract:
... This study aimed to assess the effectiveness of biochar from sewage sludge -BSS- and from pruning trees -BPT- (addition dose of 6% d.w.) to immobilise metals in acidic (pH ∼ 4.7) and basic (pH ∼ 7.4) mine soils under variable flooding conditions, and to determine biochar influence on plant (Sarcocornia fruticosa -Sf-) growth and metal uptake. BSS had lower pH (∼8.2 vs. ∼ 9.8), CaCO3 (∼71 vs. ∼ 85  ...
DOI:
10.1016/j.jenvman.2018.06.055

6. Biofilm formation and genetic characterization of New Zealand Cronobacter isolates

Author:
Gupta, Tanushree B.; Mowat, Eilidh; Brightwell, Gale; Flint, Steve H.
Source:
Journal of food safety 2018 v.38 no.2 pp. e12430
ISSN:
0149-6085
Subject:
poly(vinyl chloride),   etc   ; Cronobacter; biofilm; cleaning in place; energy; food safety; genes; genetic variation; milk; nucleotide sequences; polymerase chain reaction; polyurethanes; risk; sequence analysis; silicone; stainless steel; suppression subtractive hybridization; temperature; virulence; New Zealand;     Show all 20 Subjects
Abstract:
... The study aimed to determine genetic diversity of a collection of New Zealand Cronobacter isolates collected from different sources and their ability to form a biofilm on different materials under different conditions. Isolates were screened for the presence of biofilm associated genes. Furthermore, suppression subtractive hybridization (SSH) was used to identify unique genes, present in a C. saka ...
DOI:
10.1111/jfs.12430

7. Characteristics of co-hydrothermal carbonization on polyvinyl chloride wastes with bamboo

Author:
Yao, Zhongliang; Ma, Xiaoqian
Source:
Bioresource technology 2018 v.247 pp. 302-309
ISSN:
0960-8524
Subject:
poly(vinyl chloride),   etc   ; alternative fuels; bamboos; carbon; carbonization; chlorine; coal; combustion; dechlorination; hydrochars; hydrochloric acid; hydrolysis; synergism; temperature; thermogravimetry; wastes;     Show all 16 Subjects
Abstract:
... The PVC waste and bamboo were treated by co-hydrothermal carbonization (co-HTC) at three different temperatures. The inorganic-Cl could be removed from the carbon rich solid products (hydrochar) in the form of HCl via hydrolysis, elimination, substitution and aromatization. Due to the high carbon content, the hydrochar could be applied as premium fuel. Bamboo had a synergistic effect on dechlorina ...
DOI:
10.1016/j.biortech.2017.09.098

8. Characterization and flux assessment of airborne phthalates released from polyvinyl chloride consumer goods

Author:
Jo, Sang-Hee; Lee, Min-Hee; Kim, Ki-Hyun; Kumar, Pawan
Source:
Environmental research 2018 v.165 pp. 81-90
ISSN:
0013-9351
Subject:
poly(vinyl chloride),   etc   ; children; emissions; floors; phthalates; sorbents; temperature;     Show all 7 Subjects
Abstract:
... The concentrations and fluxes of airborne phthalates were measured from five types of polyvinyl chloride (PVC) consumer products (vinyl flooring, wallcovering, child's toy, yoga mat, and edge protector) using a small chamber (impinger) system. Airborne phthalates released from each of those PVC samples were collected using sorbent (Tenax TA) tubes at three temperature control intervals (0, 3, and ...
DOI:
10.1016/j.envres.2018.04.007

9. Characterization of Refuse Derived Fuel Using Thermogravimetric Analysis and Chemometric Techniques

Author:
Danias, Panagiotis; Liodakis, Stylianos
Source:
Journal of analytical chemistry 2018 v.73 no.4 pp. 351-357
ISSN:
1061-9348
Subject:
poly(vinyl chloride),   etc   ; cardboard; chemometrics; discriminant analysis; least squares; lignocellulose; models; nylon; paper; particle size; petroleum; polyethylene; polypropylenes; principal component analysis; proximate composition; refuse derived fuels; temperature; thermogravimetry; weight loss; wood;     Show all 20 Subjects
Abstract:
... An approach for characterization of refuse derived fuel (RDF) using thermogravimetry and chemometric techniques was developed. For this purpose, a series of samples coming from lignocellulosic products (wood, cardboard, paper, newspaper) and plastics (polyethyleneterephthalate, high density polyethylene, polypropylene, polypropylene, nylon and polyvinylchloride), as well as their mixtures, were in ...
DOI:
10.1134/S106193481804010X

10. Compositional modification of pyrogenic products using CaCO₃ and CO₂ from the thermolysis of polyvinyl chloride (PVC)

Author:
Lee, Taewoo; Oh, Jeong-Ik; Baek, Kitae; Tsang, Yiu Fai; Kim, Ki-Hyun; Kwon, Eilhann E.
Source:
Green chemistry 2018 v.20 no.7 pp. 1583-1593
ISSN:
1463-9270
Subject:
poly(vinyl chloride),   etc   ; air pollutants; air pollution; calcium carbonate; carbon; carbon dioxide; carbon monoxide; catalysts; dechlorination; dehydrogenation; energy; green chemistry; hydrogen; oils; oxygen; polycyclic aromatic hydrocarbons; synthesis gas; temperature; thermal degradation; thermal properties;     Show all 20 Subjects
Abstract:
... In this study, we explored the mechanistic features of CO₂ in the thermolysis of PVC to modify the pyrogenic products. The mechanistic roles of CO₂ in the thermolysis of PVC were varied with the pyrolytic temperature. For example, CO₂ participated in unknown reactions to form CO at temperatures higher than 600 °C, where CO₂ played a key role as an oxygen donor (new finding). This new thermal behav ...
DOI:
10.1039/c8gc00111a

11. Conidial sporulation of Stemphylium solani under laboratory conditions and infectivity of the inoculum produced in vitro

Author:
de Souza, Fernanda C.; da Silva, Kaoany F.; da Silveira, Silvaldo F.; Kowata-Dresch, Lígia S.; dos Santos, Carlos A.; do Carmo, Margarida G. F.
Source:
European journal of plant pathology 2018 v.152 no.3 pp. 691-700
ISSN:
0929-1873
Subject:
poly(vinyl chloride),   etc   ; Stemphylium solani; agar; conidia; crops; culture media; films (materials); glass; greenhouse production; inoculum; laboratory experimentation; mycelium; pathogenicity; pathogens; photoperiod; polystyrenes; sporulation; temperature; tomato juice; tomatoes;     Show all 20 Subjects
Abstract:
... Stemphylium solani is an important foliar pathogen that infects many agricultural plants, especially solanaceous plants. The difficulty inducing sporulation in pure culture is a limiting factor for research on the different pathosystems involving S. solani. In this study, the influence of the culture medium, photoperiod with alternating temperatures, Petri dish cover materials (glass, polystyrene ...
DOI:
10.1007/s10658-018-1511-y

12. Controlling generation of benzenes and polycyclic aromatic hydrocarbons in thermolysis of polyvinyl chloride in CO2

Author:
Lee, Taewoo; Oh, Jeong-Ik; Kim, Taejin; Tsang, Daniel C.W.; Kim, Ki-Hyun; Lee, Jechan; Kwon, Eilhann E.
Source:
Energy conversion and management 2018 v.164 pp. 453-459
ISSN:
0196-8904
Subject:
poly(vinyl chloride),   etc   ; benzene; carbon dioxide; carbon monoxide; chemical species; dechlorination; hydrochloric acid; oxygen; polycyclic aromatic hydrocarbons; temperature; thermal cracking; thermal degradation;     Show all 12 Subjects
Abstract:
... This study emphasizes the control of benzene derivatives and polycyclic aromatic hydrocarbons (PAHs) in thermolysis of polyvinyl chloride (PVC) using CO2. To this end, the generation of benzenes and PAHs from the thermolysis of PVC in N2 was characterized and all experimental findings from the thermolysis of PVC in N2 were used as the reference value to configure the role of CO2 in the thermolysis ...
DOI:
10.1016/j.enconman.2018.03.019

13. Cost-effective and sustainable approach to transform end-of-life vinyl banner to value added product

Author:
Cholake, Sagar T.; Pahlevani, Farshid; Gaikwad, Vaibhav; Millicer, Helen; Sahajwalla, Veena
Source:
Resources, conservation, and recycling 2018 v.136 pp. 9-21
ISSN:
0921-3449
Subject:
poly(vinyl chloride),   etc   ; X-radiation; X-ray diffraction; carbon dioxide; cost effectiveness; fluorescence; gases; landfills; life cycle assessment; manufacturing; polyesters; recycling; soaking; temperature; thermogravimetry; toxic substances; toxicity; wastes; Australia;     Show all 19 Subjects
Abstract:
... Australian industry estimates 500 t of banners are land-filled every year due to its complex nature which makes recycling either difficult or an expensive process. This study details a new low-cost solution for waste Polyvinyl Chloride (PVC) coated banners that does not require the separation of the PVC from the polyester fabric; overcoming a major barrier to recycling. End-of-life banner material ...
DOI:
10.1016/j.resconrec.2018.03.025

14. Dechlorination of Polyvinyl Chloride under Superheated Steam with Catalysts and Adsorbents

Author:
Hapipi, A. Muaz; Suda, Hiroki; Uddin, Md. Azhar; Kato, Yoshiei
Source:
Energy & fuels 2018 v.32 no.7 pp. 7792-7799
ISSN:
1520-5029
Subject:
poly(vinyl chloride),   etc   ; X-ray diffraction; adsorbents; carbonization; catalysts; chlorine; dechlorination; fuels; magnesium oxide; nickel oxide; nitrogen; pyrolysis; sodium hydroxide; steam; temperature; titanium dioxide; zinc oxide;     Show all 17 Subjects
Abstract:
... Chlorine removal from polyvinyl chloride (PVC) with the addition of catalysts, such as solid acid catalysts, and adsorbents, such as alkali and metal oxide, including a multiple one, was described using superheated steam and nitrogen as pyrolysis media in this research. The effect of the dechlorination temperature indicated that the treatment temperature was an important factor to control the carb ...
DOI:
10.1021/acs.energyfuels.8b00838

15. Distribution patterns of the introduced encrusting bryozoan Conopeum chesapeakensis (Osburn 1944; Banta et al. 1995) in an estuarine environment in upper San Francisco Bay

Author:
Newcomer, Katherine; Marraffini, Michelle L.; Chang, Andrew L.
Source:
Journal of experimental marine biology and ecology 2018 v.504 pp. 20-31
ISSN:
0022-0981
Subject:
poly(vinyl chloride),   etc   ; Bryozoa; Polychaeta; chlorophyll; estuaries; habitats; interspecific competition; introduced species; models; salinity; temperature;     Show all 11 Subjects
Abstract:
... The factors shaping the distributions of nonindigenous species (NIS) are of particular interest for understanding their success and potential impacts within their invaded ranges. In the San Francisco Bay estuary, the encrusting bryozoan Conopeum chesapeakensis (Osburn, 1944; Banta et al., 1995) occurs in peak abundances in lower salinity hard substrate habitats, with lower abundances upstream and ...
DOI:
10.1016/j.jembe.2018.04.001

16. Ecological preferences of Hyla molleri in the colonisation of arboreal refuges in a human-shaped wetland

Author:
do Vale, Rita Lacerda; Torres, Inês; Gomes, Sara; Fonseca, Carlos; Ferreira, Eduardo
ISSN:
0173-5373
Subject:
poly(vinyl chloride),   etc   ; Hyla; breeding season; breeding sites; ecosystems; microhabitats; monitoring; philopatry; pipes; spring; summer; temperature; trees; weather; wetlands; Iberian Peninsula;     Show all 16 Subjects
Abstract:
... Hyla molleri is well adapted to arboreal microhabitats, which are used among breeding seasons. This species is common in wetlands across the Iberian Peninsula and is therefore vulnerable to the loss and degradation of these ecosystems. Due to its secretive habits, the knowledge about the ecology of H. molleri, outside the breeding season, is still scarce. Using artificial refuges as a proxy to nat ...
DOI:
10.1163/15685381-00003140

17. Effect of Temperature and Gamma Radiation on Salmonella Hadar Biofilm Production on Different Food Contact Surfaces

Author:
Ben Miloud Yahia, Najla; Ghorbal, Salma Kloula Ben; Maalej, Lobna; Chatti, Abdelwaheb; Elmay, Alya; Chihib, Nour-Eddine; Landoulsi, Ahmed
Source:
Journal of food quality 2018 v.2018
ISSN:
1745-4557
Subject:
poly(vinyl chloride),   etc   ; Salmonella Hadar; adhesion; bacteria; biofilm; cellophane; disease transmission; environmental factors; food contact surfaces; food irradiation; foods; gamma radiation; glass; paper; pathogens; physicochemical properties; polystyrenes; temperature;     Show all 18 Subjects
Abstract:
... Salmonella is a pathogen transmitted by foods and it is one of the most important target bacteria in food irradiation studies. Few works were carried out on the effectiveness of gamma radiation against biofilms formed by this bacterium. Salmonella can form a biofilm on different material surfaces. The physicochemical properties of surfaces and environmental factors influence the adhesion of this p ...
DOI:
10.1155/2018/9141540

18. Estimating errors in the determination of activation energy by nonlinear methods applied for thermoanalytical measurements performed under constant heating rates

Author:
Budrugeac, P.
Source:
Thermochimica acta 2018 v.670 pp. 1-6
ISSN:
0040-6031
Subject:
poly(vinyl chloride),   etc   ; activation energy; ammonium perchlorate; confidence interval; crystallization; least squares; polyethylene; temperature;     Show all 8 Subjects
Abstract:
... Several linear and nonlinear isoconversional methods have been applied for following non-isothermal thermoanalytical data: simulated data for two consecutive first order reactions (12 heating rates), crystallization of (GeS2)0.3(Sb2S3)0.7 (4 heating rates), decomposition of ammonium perchlorate (6 heating rates) and decomposition of poly(vinyl chloride) (PVC) (5 heating rates). It has been conside ...
DOI:
10.1016/j.tca.2018.09.020

19. Long-term effect of silk paper used for wrapping of plasticized PVC objects: Comparison between ancient and model PVC

Author:
Royaux, Adeline; Fabre-Francke, Isabelle; Balcar, Nathalie; Barabant, Gilles; Bollard, Clémentine; Lavédrine, Bertrand; Cantin, Sophie
Source:
Polymer degradation and stability 2018 v.155 pp. 183-193
ISSN:
0141-3910
Subject:
poly(vinyl chloride),   etc   ; additives; color; films (materials); models; paper; phthalates; plasticizers; relative humidity; silk; temperature;     Show all 11 Subjects
Abstract:
... The degradation kinetics of ancient and model plasticized PVC films placed in contact with silk paper as wrapping material used for PVC heritage objects was investigated during an artificial thermal aging consisting in a temperature cycle and under controlled relative humidity. The studied PVC had close plasticizer content at the beginning of the artificial aging treatment and both contain a phtha ...
DOI:
10.1016/j.polymdegradstab.2018.07.016

20. Modeling and Simulation of a TPSA System for a Vinyl Chloride/Nitrogen Separation from Industrial Streams

Author:
Carmo, Paulo; Ribeiro, Ana M.; Rodrigues, Alírio E.; Ferreira, Alexandre
Source:
Industrial & engineering chemistry process design and development 2018 v.57 no.42 pp. 14223-14232
ISSN:
1520-5045
Subject:
poly(vinyl chloride),   etc   ; adsorbents; adsorption; energy; mathematical models; nitrogen; organochlorine compounds; polymerization; process design; temperature; vinyl chloride;     Show all 11 Subjects
Abstract:
... A temperature pressure swing adsorption (TPSA) system was developed to purify and recover the unreacted vinyl chloride (VCM) in a polyvinyl chloride (PVC) plant. A literature review on adsorbent materials was performed for the adsorption equilibrium separation of VCM and nitrogen (N₂). Using a one-dimensional (1D) mathematical model, a 7-step, 2-column TPSA system was designed to treat an industri ...
DOI:
10.1021/acs.iecr.8b03483

21. Multiscale description and prediction of the thermomechanical behavior of multilayered plasticized PVC under a wide range of strain rate

Author:
Bernard, C. A.; Bahlouli, N.; Wagner-Kocher, C.; Lin, J.; Ahzi, S.; Rémond, Y.
Source:
Journal of materials science 2018 v.53 no.20 pp. 14834-14849
ISSN:
0022-2461
Subject:
poly(vinyl chloride),   etc   ; deformation; glass transition; industry; mechanical properties; mechanical testing; microstructure; models; prediction; sodium; storage modulus; temperature; thermal degradation; thermodynamics;     Show all 14 Subjects
Abstract:
... Plasticization of polymers largely contributed to their worldwide utilization, especially for automotive crashworthiness, by making them a more ductile material. For such applications, a clear understanding of the mechanical properties evolution over a large range of strain rate and temperature is needed. In this study, we investigate a plasticized poly(vinyl chloride) manufactured through a multi ...
DOI:
10.1007/s10853-018-2625-5

22. Novel Method for Preparing Auxetic Foam from Closed-Cell Polymer Foam Based on the Steam Penetration and Condensation Process

Author:
Fan, Donglei; Li, Minggang; Qiu, Jian; Xing, Haiping; Jiang, Zhiwei; Tang, Tao
Source:
ACS applied materials & interfaces 2018 v.10 no.26 pp. 22669-22677
ISSN:
1944-8252
Subject:
poly(vinyl chloride),   etc   ; ethanol; foams; methodology; polyethylene; steam; temperature;     Show all 7 Subjects
Abstract:
... Auxetic materials are a class of materials possessing a negative Poisson’s ratio. Here, we established a novel method for preparing auxetic foam from closed-cell polymer foam based on the steam penetration and condensation (SPC) process. Using polyethylene (PE) closed-cell foam as an example, the foams treated by the SPC process presented a negative Poisson’s ratio during stretching and compressio ...
DOI:
10.1021/acsami.8b02332

23. Partial oxidation treatment of waste polyvinyl chloride in critical water: Preparation of benzaldehyde/acetophenone and dechlorination

Author:
Qi, Yingying; He, Jiahuan; Xiu, Fu-Rong; Nie, Wenjie; Chen, Mengjun
Source:
Journal of cleaner production 2018 v.196 pp. 331-339
ISSN:
0959-6526
Subject:
poly(vinyl chloride),   etc   ; Fourier transform infrared spectroscopy; acetophenones; benzaldehyde; chemical composition; chlorine; dechlorination; feedstocks; gas chromatography-mass spectrometry; ion exchange chromatography; naphthalene; oils; oxidation; oxygen; phenol; spectrometers; temperature; value added; wastes;     Show all 19 Subjects
Abstract:
... In this work, a partial oxidation treatment process in critical water was developed for high-efficiency dechlorination of waste polyvinyl chloride and the recovery of high value-added chemical feedstock. The partial oxidation treatment of waste polyvinyl chloride was performed at the temperature range of 200–400 °C with the mass ratio of 32 (waste polyvinyl chloride-to-oxygen). Fourier Transform I ...
DOI:
10.1016/j.jclepro.2018.06.074

24. Preparation and Characterization of PVC Matrix Composites with Biochemical Sludge

Author:
Wang, Wenliang; Han, Qing; Li, Xinping; Peng, Xinwen; Qian, Weiwei
Source:
Journal of polymers and the environment 2018 v.26 no.8 pp. 3197-3201
ISSN:
1566-2543
Subject:
poly(vinyl chloride),   etc   ; calcium carbonate; endo-1,4-beta-glucanase; enzymatic hydrolysis; enzymatic treatment; laccase; modulus of elasticity; pulp and paper mills; sludge; temperature; tensile strength; thermal stability; wastewater treatment;     Show all 13 Subjects
Abstract:
... Biochemical sludge (BS), generated in the waste water treatment of paper mills, was pretreated by enzyme hydrolysis. The effect and action mechanism of the enzymatic treatment on the properties of polyvinyl chloride (PVC) matrix composites with BS were discussed. Results showed that when the filler content was 30 wt%, the tensile strength of the PVC composites filled with BS and its modified produ ...
DOI:
10.1007/s10924-018-1210-y

25. Pulsed thermal treatment of carbon up to 3000 °C using an atomic absorption spectrometer

Author:
Putman, K.J.; Sofianos, M.V.; Rowles, M.R.; Harris, P.J.F.; Buckley, C.E.; Marks, N.A.; Suarez-Martinez, I.
Source:
Carbon 2018 v.135 pp. 157-163
ISSN:
0008-6223
Subject:
poly(vinyl chloride),   etc   ; X-ray diffraction; atomic absorption spectrometry; chlorides; crystallites; furnaces; graphene; heat; heat treatment; polyacrylonitrile; temperature; transmission electron microscopy;     Show all 12 Subjects
Abstract:
... An atomic absorption spectrometer unit fitted with a graphite furnace module is used to perform high temperature treatment on three carbonized polymers: polyvinyl chloride (PVC), polyvinylidene chloride (PVDC) and polyacrylonitrile (PAN). Using short pulses up to 45 s, we heat small samples to a maximum of 3000 °C. High-resolution transmission electron microscopy and X-ray diffractometry are used ...
DOI:
10.1016/j.carbon.2018.03.060

26. Resilience-Based Process Upset Event Prediction Analysis for Uncertainty Management Using Bayesian Deep Learning: Application to a Polyvinyl Chloride Process System

Author:
Jain, Prerna; Chakraborty, Antik; Pistikopoulos, Efstratios N.; Mannan, M. Sam
Source:
Industrial & engineering chemistry process design and development 2018 v.57 no.43 pp. 14822-14836
ISSN:
1520-5045
Subject:
poly(vinyl chloride),   etc   ; Bayesian theory; Markov chain; Monte Carlo method; models; prediction; process design; risk; risk assessors; temperature; uncertainty; variance;     Show all 12 Subjects
Abstract:
... There are uncertainties involved in the risk assessment of process systems operations. Also, systems are complex and deteriorate gradually with time or due to exposure to expected or unexpected disturbances and events. Questions such as “what is the frequency of a process upset?” and “can we predict incidents?” have yet to be explored and answered. With the use of the Process Resilience Analysis F ...
DOI:
10.1021/acs.iecr.8b01069

27. Sorption of Pb²⁺ from aqueous solution using polyethylene and polyvinylchloride wastes as adsorbents: a comparative study

Author:
Ejidike, Ikechukwu P.; Dikio, Charity W.; Wankasi, Donbebe; Dikio, Ezekiel D.; Mtunzi, Fanyana M.
Source:
TheInternational journal of environmental studies 2018 v.75 no.6 pp. 932-949
ISSN:
1029-0400
Subject:
poly(vinyl chloride),   etc   ; Fourier transform infrared spectroscopy; X-ray diffraction; adsorbents; adsorption; aqueous solutions; energy; energy-dispersive X-ray analysis; heat production; lead; polyethylene; scanning electron microscopy; surface area; temperature; wastes;     Show all 15 Subjects
Abstract:
... This study gives insight into the sorption potential of Pb²⁺ from aqueous solution using polyethylene and polyvinylchloride wastes as adsorbent. The polymer samples were characterised by X-ray diffraction spectroscopy (XRD), Fourier transform infrared spectroscopy (FTIR), energy dispersive X-ray spectroscopy (EDX), and scanning electron microscopy (SEM) for their morphological features. Kinetic, e ...
DOI:
10.1080/00207233.2018.1470403

28. Sustainable Production and In vitro Biodegradability of Edible Films from Yellow Passion Fruit Coproducts via Continuous Casting

Author:
Munhoz, Davi R.; Moreira, Francys K.V.; Bresolin, Joana D.; Bernardo, Marcela P.; De Sousa, Cristina P.; Mattoso, Luiz H. C.
Source:
ACS sustainable chemistry & engineering 2018 v.6 no.8 pp. 9883-9892
ISSN:
2168-0485
Subject:
poly(vinyl chloride),   etc   ; Bradyrhizobium diazoefficiens; Escherichia coli; Passiflora edulis f. flavicarpa; Staphylococcus aureus; biodegradability; color; coproducts; drying; edible films; glycerol; nitrogen fixation; passion fruits; pectins; plasticizers; processing waste; pulp; strength (mechanics); temperature;     Show all 19 Subjects
Abstract:
... Edible films made up of yellow passion fruit (YPF) rind and pectin as a matrix-forming agent are proposed as a means of valorizing passion fruit processing wastes. YPF films were produced at pilot-scale using continuous casting from aqueous formulations covering pectin/rind and water/pulp mass ratios of 100/0–0/100. YPF films were successfully obtained with systematic, tunable yellowish coloration ...
DOI:
10.1021/acssuschemeng.8b01101

29. Temperature-dependent schlieren effect in liquid flow for chemical analysis

Author:
Suwanrut, Jintana; Chantipmanee, Nattapong; Kamsong, Wichayaporn; Buking, Supatana; Mantim, Thitirat; Saetear, Phoonthawee; Nacapricha, Duangjai
Source:
Talanta 2018 v.188 pp. 74-80
ISSN:
0039-9140
Subject:
poly(vinyl chloride),   etc   ; ascorbic acid; chemical analysis; ethanol; flow injection analysis; heat exchangers; heat production; liquids; oxidation; refractive index; temperature;     Show all 11 Subjects
Abstract:
... In flow analysis, such as flow injection analysis, liquid lens is formed at the boundary between two adjacent liquid media which have different refractive indices. Light refraction at the liquid interface gives the so-called ‘schlieren signal’. Schlieren effect is both concentration-dependent and temperature-dependent. In this work, the schlieren signal from temperature difference was quantitative ...
DOI:
10.1016/j.talanta.2018.05.055

30. Testing of Greenhouse Cladding Materials for Space Environments, Part 2: Laminates

Author:
Peterside, David T.; Palaia, Joseph E.; Schuerger, Andrew C.; Bucklin, Ray A.; Correll, Melanie J.
Source:
Applied engineering in agriculture 2018 v.34 no.3 pp. 575-580
ISSN:
0883-8542
Subject:
poly(vinyl chloride),   etc   ; cladding; environmental factors; greenhouses; oxygen; plastics; spectroradiometers; support systems; temperature; ultraviolet radiation; wavelengths;     Show all 11 Subjects
Abstract:
... Plants grown in greenhouse-type structures are potential sources of food, oxygen, clean water, fiber, and other resources needed for bioregenerative life support systems during long-term space missions. Identification of cladding materials with appropriate optical and physical properties that can withstand the high ultraviolet radiation, low pressure, and low temperature Martian environment is nec ...
DOI:
10.13031/aea.12465

31. Thermal degradation of typical plastics under high heating rate conditions by TG-FTIR: Pyrolysis behaviors and kinetic analysis

Author:
Xu, Fanfan; Wang, Bo; Yang, Dan; Hao, Junhui; Qiao, Yingyun; Tian, Yuanyu
Source:
Energy conversion and management 2018 v.171 pp. 1106-1115
ISSN:
0196-8904
Subject:
poly(vinyl chloride),   etc   ; Fourier transform infrared spectroscopy; activation energy; alkanes; alkenes; aromatic compounds; differential thermal analysis; energy conversion; environmental protection; hydrochloric acid; kinetics; models; polyethylene; polypropylenes; pyrolysis; reaction mechanisms; temperature; thermogravimetry;     Show all 18 Subjects
Abstract:
... Pyrolysis of plastics has gained more attention recently due to the advantages of environmental protection and energy conversion. In this study, low-density polyethylene (LDPE), polypropylene (PP) and polyvinyl chloride (PVC) were studied under high heating rate conditions to investigate pyrolysis behaviors and find the most suitable kinetic reaction mechanisms. The TG and DTG curves for LDPE were ...
DOI:
10.1016/j.enconman.2018.06.047

32. Validation of ATR FT-IR to identify polymers of plastic marine debris, including those ingested by marine organisms

Author:
Jung, Melissa R.; Horgen, F. David; Orski, Sara V.; Rodriguez C., Viviana; Beers, Kathryn L.; Balazs, George H.; Jones, T. Todd; Work, Thierry M.; Brignac, Kayla C.; Royer, Sarah-Jeanne; Hyrenbach, K. David; Jensen, Brenda A.; Lynch, Jennifer M.
Source:
Marine pollution bulletin 2018 v.127 pp. 704-716
ISSN:
0025-326X
Subject:
poly(vinyl chloride),   etc   ; Fourier transform infrared spectroscopy; aquatic organisms; cleaning; cutting; gel chromatography; nylon; organochlorine compounds; organofluorine compounds; polyethylene; polypropylenes; polystyrenes; reflectance; sea turtles; temperature; water pollution;     Show all 16 Subjects
Abstract:
... Polymer identification of plastic marine debris can help identify its sources, degradation, and fate. We optimized and validated a fast, simple, and accessible technique, attenuated total reflectance Fourier transform infrared spectroscopy (ATR FT-IR), to identify polymers contained in plastic ingested by sea turtles. Spectra of consumer good items with known resin identification codes #1–6 and se ...
DOI:
10.1016/j.marpolbul.2017.12.061