Flame retardancy of biodegradable polylactic acid with piperazine pyrophosphate and melamine cyanurate as flame retardant

IF 1.9 4区工程技术 Q2 ENGINEERING, MULTIDISCIPLINARY

Journal of Fire Sciences Pub Date : 2022-05-08 DOI:10.1177/07349041221093546

Hongxu Chen, Wei Xia, Nan Wang, Yang Liu, Penghui Fan, Song Wang, Sanxi Li, Jie Liu, Tao Tang, Ailing Zhang, Zhan Ding, Wei Wu, Qi Chen

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引用次数: 17

Abstract

A flame-retardant polylactic acid composite added with piperazine pyrophosphate and melamine cyanurate was developed. Piperazine pyrophosphate and melamine cyanurate showed synergistic effect in the polylactic acid composites. When the weight ratio of piperazine pyrophosphate to melamine cyanurate was 4:1 and the loading of the piperazine pyrophosphate/melamine cyanurate flame retardant was 15 wt.%, the prepared polylactic acid composites passed V-0 rating in the UL-94 test and achieved the high limit oxygen index value of 34.9%. The cone calorimeter test result confirmed that the addition of piperazine pyrophosphate/melamine cyanurate flame retardant reduced the total heat release value of polylactic acid. The effect of polylactic acid biodegradation on the flame retardancy of polylactic acid composite was further discussed. The biodegraded polylactic acid, which was exposed to the air for 8 months, showed high flame retardancy and even passed V-0 rating in the UL-94 test without the addition of piperazine pyrophosphate/melamine cyanurate flame retardant, which proved that biodegradation could affect the flame retardancy of polylactic acid.

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以焦磷酸哌嗪和三聚氰胺为阻燃剂的可生物降解聚乳酸的阻燃性能

以焦磷酸哌嗪和氰尿酸三聚氰胺为原料，研制了阻燃聚乳酸复合材料。焦磷酸哌嗪和氰尿酸三聚氰胺在聚乳酸复合材料中表现出协同作用。当焦磷酸哌嗪与氰尿酸三聚氰胺的重量比为4:1，焦磷酸哌津/氰尿酸三聚氰胺阻燃剂的负载量为15时所制备的聚乳酸复合材料在UL-94测试中通过了V-0评级，并获得了34.9%的高极限氧指数值。锥形量热计测试结果证实，焦磷酸哌嗪/三聚氰胺氰尿酸盐阻燃剂的加入降低了聚乳酸的总放热值。进一步讨论了聚乳酸生物降解对聚乳酸复合材料阻燃性能的影响。生物降解的聚乳酸，暴露在空气中8 月，在不添加焦磷酸哌嗪/三聚氰胺氰尿酸盐阻燃剂的情况下，在UL-94测试中显示出高阻燃性，甚至通过了V-0评级，这证明生物降解会影响聚乳酸的阻燃性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Fire Sciences 工程技术-材料科学：综合

CiteScore

4.00

自引率

0.00%

发文量

审稿时长

2.5 months

期刊介绍： The Journal of Fire Sciences is a leading journal for the reporting of significant fundamental and applied research that brings understanding of fire chemistry and fire physics to fire safety. Its content is aimed toward the prevention and mitigation of the adverse effects of fires involving combustible materials, as well as development of new tools to better address fire safety needs. The Journal of Fire Sciences covers experimental or theoretical studies of fire initiation and growth, flame retardant chemistry, fire physics relative to material behavior, fire containment, fire threat to people and the environment and fire safety engineering. This journal is a member of the Committee on Publication Ethics (COPE).