TPS/EVA泡沫复合材料的制备及其阻燃与力学性能

doi:10.11949/j.issn.0438-1157.20141461

化工学报 ›› 2015, Vol. 66 ›› Issue (3): 1221-1227.DOI: 10.11949/j.issn.0438-1157.20141461

• 材料化学工程与纳米技术 • 上一篇下一篇

TPS/EVA泡沫复合材料的制备及其阻燃与力学性能

陈志杰, 郑玉婴, 邱洪峰

福州大学材料科学与工程学院, 福建福州 350108

收稿日期:2014-09-25 修回日期:2014-12-01 出版日期:2015-03-05 发布日期:2015-03-05
通讯作者: 郑玉婴
基金资助:
福建省高校产学合作科技重大关键资助项目(2012H6008);福州市科技计划资助项目(2013-G-92)。

Preparation, flame retardant and mechanical properties of TPS/EVA foam composites

CHEN Zhijie, ZHENG Yuying, QIU Hongfeng

School of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, Fujian, China

Received:2014-09-25 Revised:2014-12-01 Online:2015-03-05 Published:2015-03-05
Supported by:
supported by the Scientific and Technological Innovation Project of Fujian Province (2012H6008) and the Scientific and Technological Innovation Project of Fuzhou City(2013-G-92).

摘要/Abstract

摘要：

以热塑性淀粉(TPS)为成炭剂与聚磷酸铵(APP)、可膨胀石墨(EG)复配组成膨胀型阻燃剂,通过熔融密炼、开炼塑化、硫化发泡制备了热塑性淀粉/乙烯-醋酸乙烯酯共聚物(TPS/EVA)泡沫复合材料,探讨了TPS用量对泡沫复合材料阻燃性能、力学性能的影响。结果表明,TPS的加入显著提高了TPS/EVA泡沫复合材料阻燃性能,可起到良好的成炭作用;TPS/EVA泡沫复合材料的拉伸强度、断裂伸长率以及撕裂强度随着TPS用量的增加呈现先增大后减小的趋势,相对密度则是小幅度上升。当TPS用量为6%时,TPS/EVA泡沫复合材料综合性能最好,其LOI可达26.5%且UL-94为V-0级,拉伸强度、断裂伸长率、撕裂强度以及相对密度可达2.395 MPa、177.48%、10.59 N·mm^-1、0.21452。

关键词: TPS, EVA, 复配阻燃剂, 阻燃, 力学性能

Abstract:

Intumescent flame retardant thermoplastic starch (TPS) as char forming agent, ammonium polyphosphate (APP) and expandable graphite (EG) were used to prepare thermoplastic starch/ethylene-vinyl acetate copolymer (TPS/EVA) foam composites by melt mixing, mill plasticizing and sulfuration foaming. The effect of thermoplastic starch content on the flame retardant, mechanical and processing properties of TPS/EVA foam composites was investigated. With the introduction of char forming agent TPS, flame retardancy and charring of TPS/EVA foam composites could be significantly improved. With increasing TPS content, tensile strength, elongation at break and tearing strength of TPS/EVA foam composites showed a downward trend after firstly rising and specific gravity showed a modest rise. The TPS/EVA foam composites had best comprehensive properties at the loading of 6%TPS, i.e. LOI 26.5%, UL-94 V-0 rating, tensile strength, elongation at break, tearing strength and specific gravity 2.395 MPa, 177.48%, 10.59 N·mm^-1, 0.21452, respectively.

Key words: TPS, EVA, compound flame retardants, flame retardants, mechanical properties

中图分类号:

TQ321

陈志杰, 郑玉婴, 邱洪峰. TPS/EVA泡沫复合材料的制备及其阻燃与力学性能[J]. 化工学报, 2015, 66(3): 1221-1227.

CHEN Zhijie, ZHENG Yuying, QIU Hongfeng. Preparation, flame retardant and mechanical properties of TPS/EVA foam composites[J]. CIESC Journal, 2015, 66(3): 1221-1227.

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TPS/EVA泡沫复合材料的制备及其阻燃与力学性能

Preparation, flame retardant and mechanical properties of TPS/EVA foam composites

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