Crystallization and mechanical properties of PLA/micro-CaCO<sub>3</sub> modified with different compatibilizers

LI Mei; TAN Jiali; LU Zhiwei; LI Haonan; WU Zexiong; MAI Kancheng

doi:10.13471/j.cnki.acta.snus.2019.03.009

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Crystallization and mechanical properties of PLA/micro-CaCO₃ modified with different compatibilizers

更新时间：2023-12-11

- Crystallization and mechanical properties of PLA/micro-CaCO₃ modified with different compatibilizers
- Acta Scientiarum Naturalium Universitatis SunYatseni Vol. 58, Issue 3, Pages: 71-78(2019)
- 作者机构：
  
  1. 广东轻工职业技术学院∥广东高校高分子材料加工工程技术开发中心∥广东省高分子材料先进加工工程技术研究中心,广东,广州,510300
  2. 
- 作者简介：
- 基金信息：
- DOI：10.13471/j.cnki.acta.snus.2019.03.009
  CLC：
- Published：2019，
  
  Published Online：25 May 2019，
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LI Mei, TAN Jiali, LU Zhiwei, et al. Crystallization and mechanical properties of PLA/micro-CaCO₃ modified with different compatibilizers. [J]. Acta Scientiarum Naturalium Universitatis SunYatseni 58(3):71-78(2019)
DOI：

LI Mei, TAN Jiali, LU Zhiwei, et al. Crystallization and mechanical properties of PLA/micro-CaCO₃ modified with different compatibilizers. [J]. Acta Scientiarum Naturalium Universitatis SunYatseni 58(3):71-78(2019) DOI： 10.13471/j.cnki.acta.snus.2019.03.009.

摘要

为增加PLA/微米CaCO

复合材料的界面作用，提高PLA韧性，采用POE-g-MAH 和EVA-g-MAH 增容改性PLA/微米CaCO

复合材料，并对比研究了两种相容剂对PLA/微米CaCO3复合材料的结晶和力学性能的影响。DSC和XRD结果证实采用POE-g-MAH增容PLA/微米CaCO

明显提高PLA的结晶速率和结晶度，当微米CaCO

填充量为

=40%时，PLA的结晶度从2.0%提高到45.8%；而采用EVA-g-MAH 增容PLA/微米CaCO

对PLA结晶性能影响不大。力学实验表明采用EVA-g-MAH增容PLA/微米CaCO

复合材料增韧效果优于POE-g-MAH增容PLA/微米CaCO

复合材料。

Abstract

In order to strength the interfacial effect of PLA/micro-CaCO

and improve the toughness of PLA

PLA/micro-CaCO

composites were prepared with POE-gMAH and EVA-g-MAH. The crystallization and mechanical properties of the PLA/micro-CaCO

composites modified with different compatibilizers were compared. DSC and XRD results suggest that the addition of POE-g-MAH remarkably improve the crystallization rate and crystallinity of PLA/micro-CaCO

composites. When the filling content of micro-CaCO

reach 40%

the crystallinity of PLA can be improved from 2.0% to 45.8%. While the addition of EVA-g-MAH has little effect on the crystallization of PLA/micro-CaCO

. Mechanical tests indicate that EVA-g-MAH has better effect than POE-g-MAH on toughing the PLA/micro-CaCO

composites.

关键词

聚乳酸微米CaCO3大分子相容剂增韧复合材料

Keywords

PLAmicro-CaCO3compatibilizerstoughnesscomposites

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Related Author

LIU Hao

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Related Institution

Halcrow China, Hongkong

．Key Laboratory of Polymeric Composites and Functional Materials, the Ministry of Education// School of Chemistry and Chemical Engineering, Sun Yat-sen University

Key Laboratory of Designed Synthesis and Application of Polymer Material of Guangdong Province// School of Chemistry and Chemical Engineering, Sun Yat-sen University

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Crystallization and mechanical properties of PLA/micro-CaCO3 modified with different compatibilizers

DOI：10.13471/j.cnki.acta.snus.2019.03.009

摘要

Abstract

关键词

Keywords

references

Crystallization and mechanical properties of PLA/micro-CaCO₃ modified with different compatibilizers