2,5-呋喃二甲酸二癸酯和滑石粉协效调控聚乳酸结晶行为研究  

Study on the Crystallization Behavior of Poly(lactic acid)by Synergistic Modification of 2,5-Didecyl Furan Dicarboxylate and Hydrotalcite

作　　者：颜卓然 陆贻超[2] 马中森[2] 宋亚男 赵鹏飞 路丹 倪金平 历伟[1] 张亚杰[2] YAN Zhuo-ran;LU Yi-chao;MA Zhong-sen;SONG Ya-nan;ZHAO Peng-fei;LU Dan;NI Jin-ping;LI Wei;ZHANG Ya-jie(School of Materials Science and Chemical Engineering,Ningbo University,Ningbo 315201,China;Ningbo Institute of Materials Technology and Engineering,Chinese Academy of Sciences,Ningbo 315201,China;Hengtian Bio-based Engineering Materials Technology(Ningbo)Co.,Ltd.,Ningbo 315336,China;Zhejiang Shiny New Materials Co.,Ltd.,Wenzhou 325000,China)

机构地区：[1]宁波大学材料科学与化学工程学院,浙江宁波315201 [2]中国科学院宁波材料技术与工程研究所,浙江宁波315201 [3]恒天生物基工程材料技术(宁波)有限公司,浙江宁波315336 [4]浙江新力新材料股份有限公司,浙江温州325000

出　　处：《塑料工业》2021年第5期111-115,119,共6页China Plastics Industry

基　　金：宁波市科技创新2025重大专项(No.2018B10013)。

摘　　要：聚乳酸(PLA)结晶速率慢和结晶度低问题,导致制品耐热性差,在一定程度上限制了应用范围。利用滑石粉(Talc)和生物基来源2,5-呋喃二甲酸二癸酯(DDF)对PLA的结晶行为进行了研究。结果表明,单独添加1%Talc,结晶度变化较小,单独添加DDF,结晶度显著提升,但半结晶时间延长。同时添加Talc和DDF后,PLA结晶度由5.21%提升至31.78%,半结晶时间(t_(1/2))由134 s降低至31 s。说明DDF和Talc协同提高了PLA结晶度和加快PLA结晶速率。The slow crystallization rate and low crystallinity of poly(lactic acid)(PLA)leaded to poor heat resistance of the products,which limited the scope of application to some extent.In this study,the crystallization behavior of PLA was investigated using Talc and bio-based dicapryl 2,5-furandicarboxylate(DDF).The results show that the addition of 1%Talc alone leads to a small change in crystallinity,and the addition of DDF alone results in a significant increase in crystallinity but an increase in semi-crystallization time.The simultaneous addition of Talc and DDF increase the PLA crystallinity from 5.21%to 31.78%and decrease the semi-crystallization time(t 1/2)from 134 s to 31 s.This indicates that DDF and Talc synergistically enhance the PLA crystallinity and accelerate the PLA crystallization rate.

关 键 词：聚乳酸改性 结晶度 结晶速率 2 5-呋喃二甲酸二癸酯 滑石粉 

分 类 号：TQ321.2[化学工程—合成树脂塑料工业]