Effect of different carbodiimide additives on the compatibility and hydrolytic behavior of PLA/PBAT blends

Author:

WANG Yang1,CHEN Chen,LI Jun,HUANG Jinfei,XIONG Lulu

Affiliation:

1. Shanghai University of Engineering Science - Songjiang Campus: Shanghai University of Engineering Science

Abstract

Abstract

Blends of Polylactic acid (PLA) and Poly(butylene adipate-co-terephthalate) (PBAT) have great potential to replace conventional polyolefin and polyester materials. However, poor compatibility and fast degradation rate limit its development. In this paper, the effect of two monomer-type carbodiimides and one polymerized carbodiimide on the mechanical, crystalline, thermal stability, and hydrolysis properties of PLA/PBAT blends are investigated. Tested by FTIR, SEM, DSC, TGA, GPC, MFR, terminal carboxyl content, tensile properties and rotational torque. It is found that all the three carbodiimide additives improve the compatibility, enhance the mechanical, processing, and thermal stability properties of PLA and PBAT blends except for their reduced crystallization performance. Moreover, regarding the hydrolysis properties, the two monomeric carbodiimides exhibit little effect on the hydrolysis of PLA/PBAT blends, especially when the degradation conditions are alkaline, and even accelerate the degradation rate. Howover, the anti-hydrolysis effect of polycarbodiimide is remarkable, thus effectively enhancing the compatibility and anti-hydrolysis properties of PLA/PBAT blends, which is confirmed to be the most effective additive in this study.

Publisher

Research Square Platform LLC

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3