橡胶(SEBS-g-MA)增韧阻燃聚酰胺6:微观结构,燃烧,延伸,和Izod冲击行为

Q2 Materials Science
Hao Wu, M. Krifa, J. Koo
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引用次数: 18

摘要

在本研究中,弹性体增韧作为一种恢复聚酰胺6/膨胀阻燃复合系统延性的手段进行了探索。这是通过双螺杆熔融挤出将马来酸酐改性的SEBS弹性体加入系统中实现的。TEM显微图显示阻燃剂和弹性体颗粒均匀分布。研究了弹性体含量对聚合物体系力学性能、抗冲击性能和可燃性的影响。阻燃剂的掺入显著降低了聚合物体系的伸长率和延展性。弹性体的加入成功地显著提高了抗冲击强度,并在不影响阻燃性能的情况下部分恢复了断裂伸长率。微尺度燃烧量热计(MCC)测试表明,与原有的聚酰胺6/膨胀阻燃体系相比,含有弹性体和FR添加剂的样品的燃烧性能略有改善。橡胶负载高达15 wt%是可能的,同时仍然达到最高的UL-94 V0火焰暴露等级,表明自熄和不滴行为。图形抽象
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Rubber (SEBS-g-MA) Toughened Flame-Retardant Polyamide 6: Microstructure, Combustion, Extension, and Izod Impact Behavior
ABSTRACT In this study, elastomer toughening is explored as a means of recovering ductility of polyamide 6/intumescent flame-retardant composite systems. This was achieved using a maleic anhydride modified SEBS elastomer incorporated into the system by twin-screw melt extrusion. TEM micrographs show an even distribution of both flame retardant and elastomer particles. The effects of elastomer content on mechanical properties, Izod impact behavior, and flammability of the polymer system were investigated. The incorporation of flame retardant significantly degraded the elongation and ductility of the polymer system. The addition of the elastomer succeeded in significantly enhancing the Izod impact strength and partially recovering the elongation at break without compromising the flame-retardant performance. Micro-scale Combustion Calorimeter (MCC) tests show that samples containing both elastomer and FR additives exhibit slightly improved combustion properties compared to the original polyamide 6/intumescent flame-retardant system. Rubber loadings of up to 15 wt% were possible while still achieving the highest UL-94 V0 flame exposure rating indicating a self-extinguishing and non-drip behavior. GRAPHICAL ABSTRACT
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来源期刊
Polymer-Plastics Technology and Engineering
Polymer-Plastics Technology and Engineering 工程技术-高分子科学
CiteScore
1.71
自引率
0.00%
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0
审稿时长
4 months
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