scholarly journals Effect of ceramics/polymer heterointerface on dielectric property of self-assembled BaTiO3/poly-L-lactic acid composite materials

2021 ◽  
Vol 129 (3) ◽  
pp. 135-142
Author(s):  
Mariko TAKEDA ◽  
Kentaro YOSHINO ◽  
Akira ITO ◽  
Makoto TANIMURA ◽  
Yasuhide INOUE ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Composite Materials ◽  
Dielectric Property ◽  
Self Assembled

scholarly journals A Review: Research Progress in Modification of Poly (Lactic Acid) by Lignin and Cellulose

Polymers ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 776
Author(s):  
Sixiang Zhai ◽  
Qingying Liu ◽  
Yuelong Zhao ◽  
Hui Sun ◽  
Biao Yang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Lactic Acid ◽  
Composite Materials ◽  
Crystallization Rate ◽  
Research Progress ◽  
Poly Lactic Acid ◽  
Green Composite ◽  
Materials Development ◽  
Research Attention ◽  
Biomass Components

With the depletion of petroleum energy, the possibility of prices of petroleum-based materials increasing, and increased environmental awareness, biodegradable materials as a kind of green alternative have attracted more and more research attention. In this context, poly (lactic acid) has shown a unique combination of properties such as nontoxicity, biodegradability, biocompatibility, and good workability. However, examples of its known drawbacks include poor tensile strength, low elongation at break, poor thermal properties, and low crystallization rate. Lignocellulosic materials such as lignin and cellulose have excellent biodegradability and mechanical properties. Compounding such biomass components with poly (lactic acid) is expected to prepare green composite materials with improved properties of poly (lactic acid). This paper is aimed at summarizing the research progress of modification of poly (lactic acid) with lignin and cellulose made in in recent years, with emphasis on effects of lignin and cellulose on mechanical properties, thermal stability and crystallinity on poly (lactic acid) composite materials. Development of poly (lactic acid) composite materials in this respect is forecasted.

scholarly journals Fractal Characters of Material Texture of Self-assembled BaTiO3/Poly-L-Lactic-Acid Composites

2019 ◽  
Vol 66 (3) ◽  
pp. 122-127 ◽  
Author(s):  
Mariko TAKEDA ◽  
Kentaro YOSHINO ◽  
Yuka MIZUKAMI ◽  
Yoshihiro SATO ◽  
Akira ITO ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Material Texture ◽  
Self Assembled

Effect of Compatibilizers on Composite Materials of Bio-Ethanol Byproduct-Poly(lacticacid)

2012 ◽  
Vol 204-208 ◽  
pp. 4088-4092
Author(s):  
Ming Ming Zhang ◽  
Xiao Huan Liu ◽  
Chun Peng Wang ◽  
Li Wei Jin
Keyword(s):  
Mechanical Properties ◽  
Lactic Acid ◽  
Composite Materials ◽  
Extrusion Process ◽  
Poly Lactic Acid ◽  
Twin Screw Extrusion ◽  
Screw Extrusion ◽  
Twin Screw ◽  
Process Effects ◽  
Properties Of Composites

The blend composite materials of bio-ethanol byproduct-Poly(lactic acid) (PLA) were produced by a twin-screw extrusion process. Effects of bio-ethanol byproduct (BEB) contents and different compatibilizers on properties of composite materials were investigated. The research showed that with the increase of contents of bio-ethanol byproduct, the mechanical properties decreased. The mechanical properties of composites were improved by adding the compatibilizers, especially the polypropylene grafted maleic anhydride (PP-MAH). When the PP-MAH content was 2.5%, the mechanical properties of the composite materials were superior to others.

scholarly journals Development of Poly(Lactic Acid) Filled with Basalt Fibres and Talc for Engineering Applications

2017 ◽  
Vol 885 ◽  
pp. 303-308 ◽  
Author(s):  
Tamás Tábi ◽  
Mauro Zarrelli
Keyword(s):  
Lactic Acid ◽  
Composite Materials ◽  
Renewable Resource ◽  
Poly Lactic Acid ◽  
Polymer Science ◽  
Nucleating Agents ◽  
Important Research ◽  
Basalt Fibre ◽  
Major Drawback ◽  
Research Fields

The development of renewable resource based and inherently biodegradable polymers as well as their composites are one of the most important research fields nowadays in polymer science. Poly (Lactic Acid) (PLA), as the most promising biodegradable polymer has the potential to replace even engineering composite materials by reinforcing it with natural plant fibres or mineral fibres like basalt. However, one major drawback is its low heat deflection temperature (HDT, ~55°C) caused by its slow crystallization kinetics and thus low crystallinity of the final product. This feature also retards the usage of PLA in composite materials for elevated temperature applications. At the same time, nucleating agents like talc can be used to enhance crystallinity and thus HDT. In this paper basalt fibre reinforced and talc filled PLA composites were prepared by extrusion followed by injection moulding. The results showed that by combining the stiffness increasing effect of basalt fibres as well as the crystallinity increasing effect of talc, a composite with both high mechanical properties and high HDT could be produced.

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