Preparation of Polylactide Composite with Excellent Flame Retardance and Improved Mechanical Properties

Chu-Bo Sun; Hong-Da Mao; Feng Chen; Qiang Fu

doi:10.1007/s10118-018-2150-7

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Preparation of Polylactide Composite with Excellent Flame Retardance and Improved Mechanical Properties

ARTICLE | Updated：2021-02-18

- Preparation of Polylactide Composite with Excellent Flame Retardance and Improved Mechanical Properties
- Preparation of Polylactide Composite with Excellent Flame Retardance and Improved Mechanical Properties
- Chinese Journal of Polymer Science 2018年36卷第12期页码：1385-1393
- Affiliations：
  
  College of Polymer Science and Engineering, Sichuan University, State Key Laboratory of Polymer Materials Engineering, Chengdu 610065, China
- Author bio：
  
  fengchen@scu.edu.cn (F.C.)
  qiangfu@scu.edu.cn (Q.F.)
- Funds：
  
  This work was financially supported by the National Natural Science Foundation of China (No. 51721091).
- DOI：10.1007/s10118-018-2150-7
  中图分类号：
- 收稿：2018-03-23，
  
  修回：2018-4-29，
  
  录用：2018-5-1，
  
  网络首发：2018-06-11，
  
  纸质出版：2018-12
- Accepted：
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Citation: Sun, C. B.; Mao, H. D.; Chen, F.; Fu, Q. Preparation of Polylactide Composite with Excellent Flame Retardance and Improved Mechanical Properties. Chinese J. Polym. Sci. 2018, 36(12), 1385–1393

Chu-Bo Sun, Hong-Da Mao, Feng Chen, et al. Preparation of Polylactide Composite with Excellent Flame Retardance and Improved Mechanical Properties[J]. Chinese Journal of Polymer Science, 2018, 36(12): 1385-1393.
Citation: Sun, C. B.; Mao, H. D.; Chen, F.; Fu, Q. Preparation of Polylactide Composite with Excellent Flame Retardance and Improved Mechanical Properties. Chinese J. Polym. Sci. 2018, 36(12), 1385–1393 DOI： 10.1007/s10118-018-2150-7.

Chu-Bo Sun, Hong-Da Mao, Feng Chen, et al. Preparation of Polylactide Composite with Excellent Flame Retardance and Improved Mechanical Properties[J]. Chinese Journal of Polymer Science, 2018, 36(12): 1385-1393. DOI： 10.1007/s10118-018-2150-7.

摘要

Abstract

Despite the good biodegradable and mechanical properties

poly(lactic acid) still suffers from a highly inherent flammability

which restricts its applications in the electric and automobile fields. In order to improve the flame retardancy of PLA

in this work

melamine polyphosphate (MPP) and zinc bisdiethylphosphinate (ZnPi) were firstly incorporated into PLA

and the synergistic effect of them on flame retardance of PLA was investigated using limiting oxygen index (LOI)

UL-94 vertical measurement

scanning electron microscopy (SEM) and cone calorimeter tests

etc

. The results showed that PLA composite with 15 wt% of MPP/ZnPi (3:2) had the best flame-retardant efficiency with LOI value of 30.1 and V0 rating in UL-94 tests

which was far better than using MPP or ZnPi alone. What is more

although a wide range of flame retardants have been developed to reduce the flammability

so far

they normally compromise the mechanical properties of PLA. On the premise of maintaining good flame-retardant performance

we improved the toughness of flame-retardant PLA composite

and the impact strength of flame-retardant PLA composite was more than tripled (8.08 kJ/m

) by adding thermoplastic urethanes (TPU). This work offers an innovative method for the design of the unique integration of extraordinary flame retardancy and toughening reinforcement for PLA materials.

关键词

Keywords

references

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