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1. Influence of stacking sequence on mechanical properties of areca-kenaf fiber- reinforced polymer hybrid composite

Author:
Sathyaseelan P; Prabhukumar Sellamuthu; Lakshmanan Palanimuthu
Source:
Journal of natural fibers 2022 v.19 no.1 pp. 369-381
ISSN:
1544-046X
Subject:
impact strength,   etc   ; Areca; epoxides; kenaf; polymers;     Show all 5 Subjects
Abstract:
... Hybrid laminates made using natural fibers have been finding applications in diverse fields such as automotive parts, building structures and sports goods. These laminates incorporate the benefits of the reinforcements used in constructions. The present work deals with the fabrication of hybrid laminate comprising of the natural fibers areca and kenaf in varying stacking sequences through the hand ...
DOI:
10.1080/15440478.2020.1745118

2. A facile strategy for preparation of strong tough poly(lactic acid) foam with a unique microfibrillated bimodal micro/nano cellular structure

Author:
Pei Xiang; Liangcheng Gou; Yuan Zou; Binyi Chen; Siwen Bi; Xuhuang Chen; Peng Yu
Source:
International journal of biological macromolecules 2022 v.199 pp. 264-274
ISSN:
0141-8130
Subject:
impact strength,   etc   ; carbon dioxide; cell structures; foams; temperature; tensile strength; vibration;     Show all 7 Subjects
Abstract:
... This work reports the design and fabrication of strong tough poly(lactic acid) (PLA) foam by combining pressure-induced-flow (PIF) processing with supercritical CO₂ foaming. PIF processing widened the foaming window of PLA to 40–120 °C, while supercritical CO₂ foaming released the undesired internal stress of PLA samples with PIF processing (P-PLA). The prepared PLA foams displayed a unique microf ...
DOI:
10.1016/j.ijbiomac.2021.12.187

3. Reactive extrusion of highly filled, compatibilized, and sustainable PHBV/PBAT – Hemp residue biocomposite

Author:
Arvind Gupta; Ljubica Lolic; Tizazu H. Mekonnen
Source:
Composites 2022 v.156 pp. 106885
ISSN:
1359-835X
Subject:
impact strength,   etc   ; biocomposites; biodegradability; brittleness; byproducts; extrusion; heat; hemp; temperature; thermoplastics;     Show all 10 Subjects
Abstract:
... Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) is a biodegradable thermoplastic that has shown promising properties to replace single-use plastics for a range of applications. In addition to its biodegradability, PHBV has competitive mechanical properties, making it appealing for packaging and consumer goods applications. However, it is substantially more expensive than conventional plastics, ...
DOI:
10.1016/j.compositesa.2022.106885

4. Fabrication of zirconium phenylphosphonate/epoxy composites with simultaneously enhanced mechanical strength, anti-flammability and smoke suppression

Author:
Xian-Ling Fu; Hong-Liang Ding; Xin Wang; Lei Song; Yuan Hu
Source:
Composites 2022 v.155 pp. 106837
ISSN:
1359-835X
Subject:
impact strength,   etc   ; air; combustion; epoxides; heat; nitrogen; oxygen; phosphates; phosphonates; smoke; zirconium;     Show all 11 Subjects
Abstract:
... A two-dimensional layered zirconium phosphonate (ZrPP) was synthesized from phenylphosphonic acid, and its structure was well characterized. ZrPP exhibited a larger lamellar spacing distance (1.474 nm) than zirconium phosphate (ZrP) (0.743 nm) so that ZrPP can be better dispersed within the epoxy matrix. The 3 wt% ZrPP-EP composite showed excellent flame retardancy in terms of lower total heat rel ...
DOI:
10.1016/j.compositesa.2022.106837

5. Interface nanoengineering of a core-shell structured biobased fire retardant for fire-retarding polylactide with enhanced toughness and UV protection

Author:
Yueming Yu; Yan Zhang; Liangdong Xi; Zhinuo Zhao; Siqi Huo; Guobo Huang; Zhengping Fang; Pingan Song
Source:
Journal of cleaner production 2022 v.336 pp. 130372
ISSN:
0959-6526
Subject:
impact strength,   etc   ; bioplastics; flame retardants; graphene oxide; oxygen; polylactic acid; surface tension;     Show all 7 Subjects
Abstract:
... In this work, we found a very effective method to adjust the polarity of the fillers to promote its good dispersion in matrix by using an organic-solvent-free assembling strategy. With the coating of polyethylenimine-decorated graphene oxide (GO-PEI), the as-prepared biobased core-shell graphene oxide hybrid (BCSGOH) can distribute more homogeneously in the polylactide (PLA) matrix, compared with ...
DOI:
10.1016/j.jclepro.2022.130372

6. Poly (lactic acid) blends with excellent low temperature toughness: A comparative study on poly (lactic acid) blends with different toughening agents

Author:
Shiling Jia; Ling Zhao; Xiangyu Wang; Yunjing Chen; Hongwei Pan; Lijing Han; Huiliang Zhang; Lisong Dong; Huixuan Zhang
Source:
International journal of biological macromolecules 2022 v.201 pp. 662-675
ISSN:
0141-8130
Subject:
impact strength,   etc   ; ambient temperature; carbonates; comparative study; ethylene; polyurethanes; propylene; tensile strength;     Show all 8 Subjects
Abstract:
... Poly (lactic acid) (PLA) blends with different toughening agents were prepared by melt compounding, and the effects of toughening agents on the toughness of PLA, especially the low-temperature toughness, were investigated. All blends were immiscible systems, but the rheological Cole-Cole diagram showed that the blends had certain compatibility, and the interfacial bonding of PLA/Ethylene/butyl met ...
DOI:
10.1016/j.ijbiomac.2022.01.126

7. Comparison of toughening mechanisms in natural silk-reinforced composites with three epoxy resin matrices

Author:
Kang Yang; Zihong Wu; Changgeng Zhou; Siyu Cai; Zhentao Wu; Wenhan Tian; Sujun Wu; Robert O. Ritchie; Juan Guan
Source:
Composites 2022 v.154 pp. 106760
ISSN:
1359-835X
Subject:
impact strength,   etc   ; Bombyx mori; bisphenol A; brittleness; crosslinking; energy; epoxides; silk; specific energy;     Show all 9 Subjects
Abstract:
... Natural silk fibre can reinforce the polymer matrix for composites with improved toughness and impact strength. However, the optimum selection of matrices for the mechanical performance of silk fibre reinforced plastics (SFRPs) is still unclear, especially with respect to toughness. Here Bombyx mori silk is applied to reinforce three epoxy resin matrices with various crosslinking structures. The e ...
DOI:
10.1016/j.compositesa.2021.106760

8. Effect of Fiber Loading and Orientation on Mechanical and Thermal Properties of Jute-Polyester Laminated Composite

Author:
Fazlar Rahman; Ashabul Eiamin; Mohammad Rakib Hasan; Shariful Islam; M. Merajul Haque; M. A. Gafur; S. A. Dhar
Source:
Journal of natural fibers 2022 v.19 no.5 pp. 1741-1755
ISSN:
1544-046X
Subject:
impact strength,   etc   ; absorption; energy; jute; modulus of rupture; polyesters; tensile strength; thermal conductivity;     Show all 8 Subjects
Abstract:
... The effects of fiber orientation and volume fraction on the mechanical and thermal properties of laminated jute reinforced polyester composite are investigated. The composite sheets of thickness 4.0 mm are fabricated by hand lay-up method using three laminated stacks of jute fibers and four different orientations (0°/90°/0°, 90°/0°/90°, 45°/0°/-45° and −45°/90°/45°). For each fiber orientation, tw ...
DOI:
10.1080/15440478.2020.1788485

9. Characterization of a Novel Polyalthia Longifolia Mid-rib Fibers as a Potential Reinforcement for Polymer Composites

Author:
Srinivas Shenoy Heckadka; Suhas Yeshwant Nayak; C. Raghavendra Kamath; S. P. Adarsh; Rashmi Samant
Source:
Journal of natural fibers 2022 v.19 no.6 pp. 2106-2118
ISSN:
1544-046X
Subject:
impact strength,   etc   ; Fourier transform infrared spectroscopy; Polyalthia longifolia; leaves; polymers; sodium hydroxide; tensile strength;     Show all 7 Subjects
Abstract:
... This research work makes use of a novel polyalthia longifolia leaf mid-rib fibers as a potential reinforcement for polymer composites. The fibers were subjected to sodium hydroxide treatments for different duration, and its effect on the tensile strength of the polyalthia fibers was examined. 6 h treatment was found to be optimum with a maximum tensile strength of 134 MPa. Scanning electron micros ...
DOI:
10.1080/15440478.2020.1798847

10. Investigation of Static and Dynamic Mechanical Properties of Short Palmyra Palm Leaf Stalk Fiber (PPLSF) Reinforced Polymer Composites

Author:
Thiru Muruganrama; Jayaraj Mahalingam; Shanmugam Dharmalingam; Shanmugasundaram Natarajan
Source:
Journal of natural fibers 2022 v.19 no.5 pp. 1908-1924
ISSN:
1544-046X
Subject:
impact strength,   etc   ; Borassus flabellifer; loss modulus; modulus of rupture; petioles; polymers; tensile strength; thermogravimetry;     Show all 8 Subjects
Abstract:
... The research work is focused toward determining the static and dynamic mechanical properties of the composites made by reinforcing untreated and alkali-treated short palmyra palm leaf stalk fibers (PPLSF) of length 3 mm, , and 10 mm in the polymer matrix. The short palmyra palm leaf stalk fiber reinforced polymer matrix composites are prepared by a compression molding method. The result illustrate ...
DOI:
10.1080/15440478.2020.1840478

11. Morphological control and interfacial compatibilization of fully biobased PLA/ENR blends via partial crosslinking ENR with sebacic acid

Author:
Hao Zhang; Wen-Qiang Yuan; Yunxuan Weng; Jian-Bing Zeng; Yi-Dong Li
Source:
Industrial crops and products 2022 v.180 pp. 114707
ISSN:
0926-6690
Subject:
impact strength,   etc   ; adhesion; catalysts; crosslinking; epoxides; gels; particle size; plastic deformation; polylactic acid; rubber;     Show all 10 Subjects
Abstract:
... The fully biobased polylactide/epoxidized natural rubber (PLA/ENR) blend usually shows poor mechanical properties due to the coarse phase-separated morphology with low interfacial adhesion. Herein, we report a novel strategy to tailor the phase morphology and interfacial adhesion of PLA/ENR blend by partial crosslinking ENR with sebacic acid (SA). A series of partially crosslinked sebacic acid mod ...
DOI:
10.1016/j.indcrop.2022.114707

12. Physico-mechanical properties of wood–plastic composites from Triplochiton scleroxylon K. Schum wood-residue and post-consumer polyethylene waste as construction materials

Author:
C. Antwi-Boasiako; A. Osei-Owusu Ansah; M. Glalah
Source:
International wood products journal 2022 v.13 no.1 pp. 50-56
ISSN:
2042-6453
Subject:
impact strength,   etc   ; Triplochiton scleroxylon; hardness; pollution; polyethylene; sawdust; tensile strength; wastes; water uptake; wood;     Show all 10 Subjects
Abstract:
... Wood-residues and plastic wastes are environmental pollutants. The success of engineered Wood–Plastic Composites (WPCs) as structural materials depends on their properties. The physico-mechanical properties of WPCs from Triplochiton scleroxylon sawdust and post-consumer polyethylene water sachet were assessed. The components (Composite A = 10:90% wood–plastic, B = 25:75% and C = 50:50% by weight) ...
DOI:
10.1080/20426445.2021.2014026

13. A phosphorus-containing imidazole derivative towards the liquid oxygen compatibility and toughness of epoxy resin

Author:
Huihuan Wang; Chuan Li; Zhuang Hou; Bolun Li; Haopeng Cai
Source:
RSC advances 2022 v.12 no.12 pp. 7046-7054
ISSN:
2046-2069
Subject:
impact strength,   etc   ; X-ray photoelectron spectroscopy; epoxides; imidazole; liquids; oxygen; phosphorus; polymers; pyrolysis; thermal stability;     Show all 10 Subjects
Abstract:
... In order to develop a liquid oxygen-compatible (LOX-compatible) matrix resins for polymer-based fiber-reinforced composites, a novel phosphorus-containing imidazole derivative called VAD containing multifunctional groups was synthesized and used as a co-curing agent for epoxy resin (EP) with simultaneous LOX-compatibility and mechanical improvement. A phosphorus group was introduced into the EP to ...
DOI:
10.1039/d1ra09049f

14. Influence of Ozonized Soybean Oil as a Biobased Plasticizer on the Toughness of Polylactic Acid

Author:
Kantima Chaochanchaikul; Pornlada Pongmuksuwan
Source:
Journal of polymers and the environment 2022 v.30 no.3 pp. 1095-1105
ISSN:
1566-2543
Subject:
impact strength,   etc   ; crystallization; energy; environment; glass transition; ozonolysis; plasticizers; polylactic acid; soybean oil; tensile strength;     Show all 10 Subjects
Abstract:
... This work aimed to study the mechanism of toughness improvement of polylactic acid (PLA) by using a biobased plasticizer. Ozonized soybean oil (OSBO), acting as a biobased plasticizer, was prepared by the ozonolysis reaction. The functional groups and chemical structure of OSBO were characterized by FTIR and NMR techniques, respectively. Plasticized PLA specimens were prepared by compounding using ...
DOI:
10.1007/s10924-021-02264-6

15. Achieving simultaneously toughening and flame-retardant modification of poly(lactic acid) by in-situ formed cross-linked polyurethane and reactive blending with ammonium polyphosphate

Author:
Meng Ma; Xinpeng Wang; Kai Liu; Si Chen; Yanqin Shi; Huiwen He; Xu Wang
Source:
Journal of materials science 2022 v.57 no.9 pp. 5645-5657
ISSN:
0022-2461
Subject:
impact strength,   etc   ; ammonium polyphosphates; combustion; composite materials; cross-linking reagents; crosslinking; droplets; flame retardants; glycerol; polyurethanes;     Show all 10 Subjects
Abstract:
... Preparing poly(lactic acid) (PLA) composites with toughness and flame retardancy simultaneously is a challenge that many researchers faced. In this paper, flame-retardant and toughened PLA composites were prepared by reactive blending with in-situ formed polyurethane as the toughening phase and ammonium polyphosphate (APP) as the flame retardant. By adding glycerin as a cross-linking agent, the dr ...
DOI:
10.1007/s10853-022-06887-5

16. Annealing Effect on Pla/Eva Blends Performance

Author:
Eduardo da Silva Barbosa Ferreira; Carlos Bruno Barreto Luna; Danilo Diniz Siqueira; Edcleide Maria Araújo; Danyelle Campos de França; Renate Maria Ramos Wellen
Source:
Journal of polymers and the environment 2022 v.30 no.2 pp. 541-554
ISSN:
1566-2543
Subject:
impact strength,   etc   ; biodegradability; brittleness; contact angle; crystal structure; environment; hardness; modulus of elasticity; rheometry; torque; viscosity;     Show all 11 Subjects
Abstract:
... PLA has aroused industrial and scientific interest in recent years, mainly due to its biodegradable character. However, PLA is brittle and displays low impact strength which has motivated researches to improve its toughness. The present work aims to produce PLA/EVA blends, and to investigate the EVA effect on PLA as well as the annealing which carried out at 90 °C for 5 h and provided increase in ...
DOI:
10.1007/s10924-021-02220-4

17. Biobased plasticizer and cellulose nanocrystals improve mechanical properties of polylactic acid composites

Author:
Martin Eichers; Dilpreet Bajwa; Jamileh Shojaeiarani; Sreekala Bajwa
Source:
Industrial crops and products 2022 v.183 pp. 114981
ISSN:
0926-6690
Subject:
impact strength,   etc   ; biocomposites; biodegradability; biopolymers; cellulose; light microscopy; maleic anhydrides; nanocrystals; plasticizers; polyethylene glycol; polylactic acid;     Show all 11 Subjects
Abstract:
... Biopolymers are a fundamental part of contemporary life due to their biodegradable and biocompatible nature. Among different biopolymers, polylactic acid (PLA) with ease of processability, is one of the most commercially available biopolymers used in additive manufacturing. However, the low ductility and impact strength limits its application in commercial plastic products. One of the methods to e ...
DOI:
10.1016/j.indcrop.2022.114981

18. Impact Properties Analysis of Bamboo/glass Fiber Hybrid Composites

Author:
Shaoxiong Zhou; Jin Li; Shaofu Kang; Dianping Zhang; Yaozhang Han; Peng Ma
Source:
Journal of natural fibers 2022 v.19 no.1 pp. 329-338
ISSN:
1544-046X
Subject:
impact strength,   etc   ; bamboos; energy; glass fibers;     Show all 4 Subjects
Abstract:
... Six kinds of bamboo/glass fiber vinyl ester hybrid composites with different layers were prepared by vacuum assisted resin infusion (VARI) process. The bending and pendulum properties on them, meanwhile the low-velocity impact and compression-after-impacted response were investigated studied on the energy levels of 7J, 9J, 11J and 13J. The results show that the bending strength, pendulum impact st ...
DOI:
10.1080/15440478.2020.1745114

19. Tough poly(ethylene glycol)-sized bacterial cellulose sheet for high impact strength laminated acrylic composites

Author:
Natalia Herrera; Joanne Li; Koon-Yang Lee
Source:
Composites 2022 v.156 pp. 106845
ISSN:
1359-835X
Subject:
impact strength,   etc   ; brittleness; cellulose; deformation; nanofibers;     Show all 5 Subjects
Abstract:
... Dried and well-consolidated sheet of bacterial cellulose (BC) nanofibrils is a material structure that possesses high modulus and strength but is also brittle, which limits its potential in various advanced composite applications. Here, we report a simple method of enhancing the toughness of BC sheet by sizing the BC nanofibrils with poly(ethylene glycol) (PEG). This hinders interfibril hornificat ...
DOI:
10.1016/j.compositesa.2022.106845

20. Production of biomass-based composite from reed pretreated by ball-milling combined with p-toluenesulfonic acid

Author:
Sen Ma; Yin Yan; Changliu He; Zheng Li; Xing Tang; Jonathan Sperry; Yong Sun; Lu Lin; Xianhai Zeng
Source:
Industrial crops and products 2022 v.180 pp. 114712
ISSN:
0926-6690
Subject:
impact strength,   etc   ; crystallization; energy; enzymatic hydrolysis; glucose; hemicellulose; injection molding; lignin; modulus of elasticity; p-toluenesulfonic acid; polylactic acid;     Show all 11 Subjects
Abstract:
... Reed is a promising biorenewable energy source given its ability to grow rapidly under environmentally challenging conditions. Pretreatment of reed by ball-milling in the presence of p-toluenesulfonic acid (p-TsOH) led to a significant reduction in hemicellulose (78%) and lignin (67%) content. After this pre-treatment, enzymatic hydrolysis of the residue led to a glucose content of 12.0 g/L. The e ...
DOI:
10.1016/j.indcrop.2022.114712