Polylactic acid - Wikipedia
Polylactic acid, also known as poly (lactic acid) or polylactide (PLA), is a plastic material. As a thermoplastic polyester (or polyhydroxyalkanoate) it has the backbone formula (C. n. PLA is formally obtained by condensation of lactic acid C (CH. 3) …
聚乳酸 - 维基百科，自由的百科全书
聚乳酸 （英語： Polylactic Acid或Polylactide， 縮寫： PLA），是一種 热塑性 脂肪族 聚酯。 生产聚乳酸所需的 乳酸 或 丙交酯 可以通过可再生资源发酵、脱水、纯化后得到，所得的聚乳酸一般具有良好的机械和加工性能，而聚乳酸产品废弃后又可以通过各种方式快速降解。 乳酸的结构中同时含有 羧基 和 羟基，故乳酸分子之间可以发生酯化反应形成长链。 虽然名叫聚乳酸，但绝大部分羧基已经在聚合反应中反应掉，实际并没有什么酸性，这一点和聚丙烯酸为代表的侧基均为羧基 …
Polylactic acid (PLA): Properties, synthesis, and biomedical ...
2024年8月5日 · Polylactic acid (PLA) has emerged as a versatile and promising biodegradable polymer with widespread applications. Its properties, including physical, thermal, and mechanical aspects, are influenced by factors like molecular distribution, stereochemistry, and composition.
Physical and mechanical properties of PLA, and their functions in ...
2016年12月15日 · PLA as a leading candidate, is a thermoplastic, high-strength, high-modulus polymer that can be made from annually renewable resources to yield different components for use in either the industrial packaging field or the biocompatible/bioabsorbable medical device …
PLA (Polylactic Acid): Definition, Applications, and ... - Xometry
2022年11月11日 · Polylactic acid (PLA) is an easy-to-process, biocompatible, biodegradable plastic. As such, it is used for medical implants like stents and implantable drug dispensers that are designed to biodegrade over time. PLA is also used in food packaging and disposable cutlery and can be formed into fibers for clothing.
A review on poly lactic acid (PLA) as a biodegradable polymer
2022年3月6日 · PLA is the most popular commercially used bio-based plastic due to its better product functionalities among polymers with comparable characteristics. Its inherent biodegradability made it possible to offer multiple end-of-life options, such as anaerobic digestion and industrial composting.
Polylactic Acid (PLA): The Environment-friendly Plastic
2017年11月9日 · Polylactic acid or polyactide (PLA) is a biodegradable and bioactive polyester made up of lactic acid building blocks. It was first discovered in 1932 by Wallace Carothers by heating lactic acid under vacuum while removing condensed water. During the early times, only low-density PLA was produced.
Synthesis, properties, environmental degradation, processing, and ...
2024年4月30日 · Polylactic acid (PLA), a highly promising biodegradable biopolymer, has been extensively studied over the last two decades. The thermoplastic polyester PLA is bio-based, compostable, and eco-friendly. Its monomer, lactic acid, is fermented from renewable plant sources like starch and sugar.
Synthesis, properties, and applications of polylactic acid‐based ...
2022年11月3日 · Polylactic acid (PLA) is known as one of the greatest promising bioabsorbable and compostable polyesters with the capability of high molecular weight synthesis. Lactic acid condensation, azeotropic dehydration, and condensation ring-open polymerize of lactide are three methods for PLA polymerization.
Poly(lactic Acid): A Versatile Biobased Polymer for the Future
2021年5月31日 · Poly (lactic acid) (PLA), one of the well-known eco-friendly biodegradables and biobased polyesters, has been studied extensively and is considered to be a promising substitute to petroleum-based polymers.