| 聚乳酸/环氧大豆油共混物的性能 |
| |
| 引用本文： | 赵永青,陈福泉,冯彦洪,瞿金平.聚乳酸/环氧大豆油共混物的性能[J].化工学报,2014,65(10):4197-4202. |
| |
| 作者姓名： | 赵永青 陈福泉 冯彦洪 瞿金平 |
| |
| 作者单位： | 1.华南理工大学聚合物成型加工工程教育部重点实验室, 广东 广州 510640;2.华南理工大学制浆造纸工程国家重点实验室, 广东 广州 510640 |
| |
| 基金项目： | 广州市科技计划项目(2014J4100012)；聚合物成型加工工程教育部重点实验室开放课题(2013006)；制浆造纸工程国家重点实验室开放基金项目(201373)；中央高校基本科研业务费项目(2014ZB0019)。 |
| |
| 摘 要： | 聚乳酸（PLA）与环氧大豆油（ESO）经熔融共混制得具有高韧性的PLA/ESO共混物，并研究了ESO含量对PLA微观形态、力学和流变性能的影响规律。结果表明：ESO可显著降低PLA的熔体黏度，提高PLA的韧性；PLA/ESO共混物在低ESO含量（10%）时为部分相容，而在高ESO含量（20%和30%）时发生了相分离，从而使共混物的断裂伸长率和冲击强度随ESO含量增加先增大后减小，且分别在ESO含量为20%和15%时达到最大值，约为PLA的17倍和2.9倍，而拉伸强度则随之减小。
|
| 关 键 词： | 聚乳酸 环氧大豆油 熔融共混 力学性能 流变学性能 相形态 |
| 收稿时间： | 2014-03-28 |
| 修稿时间： | 2014-06-27 |
Properties of poly(lactic acid)/epoxidized soybean oil blends |
| |
| ZHAO Yongqing,CHEN Fuquan,FENG Yanhong,QU Jinping.Properties of poly(lactic acid)/epoxidized soybean oil blends[J].Journal of Chemical Industry and Engineering(China),2014,65(10):4197-4202. |
| |
| Authors: | ZHAO Yongqing CHEN Fuquan FENG Yanhong QU Jinping |
| |
| Affiliation: | 1.Key Laboratory of Polymer Processing Engineering of Ministry of Education, South China University of Technology, Guangzhou 510640, Guangdong, China;2.State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China |
| |
| Abstract: | Poly(lactic acid) (PLA) and epoxidized soybean oil (ESO) was melt blended to prepare the PLA/ESO blends with high toughness. The effects of ESO contents on the phase morphologies, mechanical and rheological properties of the prepared PLA/ESO blends were investigated. The introduction of ESO significantly decreased melt viscosity and improved toughness of PLA. The PLA/ESO blend with low ESO content (10%) was a partially miscible system, whereas that with high ESO content (20% and 30%) exhibited distinct phase separation. Elongation at break and impact strength of the blends increased firstly and then decreased with increasing ESO content. The former reached the maximum value (17 times that of PLA) at ESO content of 20%, and the latter reached the maximum value (2.9 times that of PLA) at ESO content of 15%. Tensile strength of the blends decreased with increasing ESO content. |
| |
| Keywords: | poly(lactic acid) epoxidized soybean oil melt blended mechanical properties rheological properties phase morphology |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《化工学报》浏览原始摘要信息 |
|
点击此处可从《化工学报》下载全文 |
