高透明度,可降解和抗紫外线保护的聚乳酸复合材料,基于延长性风学和链延长器辅助的融混合
Xiaolong Li1, Zhipeng Liu2, Zhigang Liu3
1Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure and Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, PR China.
International journal of biological macromolecules
|December 1, 2023
概括
这项研究开发了一种具有增强强度,可塑性和性的紫外线保护型聚乳酸 (PLA) 复合物. 这种材料对智能窗户和食品包装等应用非常有希望.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
背景情况:
- 传统的聚乳酸 (PLA) 加工损害了强度和透明度,限制了其在智能家居和食品包装中的使用.
- 开发具有改进机械性能和功能的基于PLA的材料对于先进的应用至关重要.
研究的目的:
- 创建一个UV保护性PLA复合材料 (PP6),同时增强强度,可塑性和性.
- 调查聚3-基酸-4-基酸 (P34HB) 和链延长剂对PLA特性的影响.
主要方法:
- 化混合PLA与6重%的P34HB和1重%的链延长器.
- 机械性能 (强度,可塑性,性),透明度,紫外线保护和热力学稳定性的表征.
主要成果:
- PP6复合材料获得了高强度 (63.3 MPa),可塑性 (125.3%) 和性 (4.3 kJ/m2).
- 该复合材料表现出优异的中长波紫外线保护性能,超过了传统的工业玻璃.
- 在六个热力学循环后,PP6保持了良好的性能,显示出良好的耐用性.
结论:
- 开发的PLA复合材料提供了机械强度,性,透明度和紫外线保护的独特组合.
- 该材料是智能窗户,食品包装,农业膜和生物医学应用的有希望的候选材料.
相关概念视频
Polymer Classification: Architecture
2.7K
Polymers are classified as linear or branched on the basis of their chain architecture. The polymer chains in linear polymers have a long chain-like structure with minimal to no branching at all. Even if a polymer features large substituent groups on the monomer, which appear as branches to the skeleton, it is not considered a branched polymer. A branched polymer contains secondary polymer chains that arise from the main polymer chain. The branching occurs when the polymer growth shifts from...
2.7K
Types of Step-Growth Polymers: Polyesters
2.3K
The introduction of polyesters has brought major development to the textile industry. The wrinkle-free behavior of polyester blends has eliminated the need for starching and ironing clothes.
Polyesters are commonly prepared from terephthalic acid and ethylene glycol; the crude product is known as poly(ethylene terephthalate) or PET. However, polyesters are synthesized industrially by transesterification of dimethyl terephthalate with ethylene glycol at 150 °C. The two reactants and the...
Polyesters are commonly prepared from terephthalic acid and ethylene glycol; the crude product is known as poly(ethylene terephthalate) or PET. However, polyesters are synthesized industrially by transesterification of dimethyl terephthalate with ethylene glycol at 150 °C. The two reactants and the...
2.3K
Step-Growth Polymerization: Overview
3.5K
Step-growth or condensation polymerization is a stepwise reaction of bi or multifunctional monomers to form long-chain polymers. As all the monomers are reactive, most of the monomers are consumed at the early stages of the reaction to form small chains of reactive oligomers, which then combine to form long polymer chains in the late stages. Hence, the reaction has to proceed for a long time to achieve high molecular weight polymers.
Many natural and synthetic polymers are produced by...
Many natural and synthetic polymers are produced by...
3.5K


