橡胶增韧阻燃(FR)聚酰胺11纳米复合材料第1部分:SEBS-g-MA弹性体和纳米粘土的作用

Hao Wu, R. Ortiz, J. Koo
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引用次数: 6

摘要

摘要:本研究的目的是开发一种具有平衡热、力学和可燃性的多功能聚酰胺11 (PA11)。本研究采用双螺杆挤出法制备了两组配方:第一组配方考察了马来酸酐改性弹性体对弹性体可燃性和力学性能的影响,第二组配方研究了添加不同量的纳米粘土对弹性体的热稳定性、可燃性和力学性能的影响。添加20 wt.%的弹性体可使断裂伸长率达到40%。热释放能力降低高达49%,所有纳米复合材料样品均通过UL 94 V-1等级。纳米粘土的加入使拉伸模量提高了78%,阻燃剂和纳米粘土的加入对所有配方的断裂伸长率都有负面影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Rubber toughened flame retardant (FR) polyamide 11 nanocomposites Part 1: the effect of SEBS-g-MA elastomer and nanoclay
Abstract The objective of this research is to develop a multifunctional polyamide 11 (PA11) with balanced thermal, mechanical, and flammability properties for SLS. In this study, two sets of formulations were prepared by twin-screw extrusion: the first set examined the effect of maleic anhydride modified elastomers on flammability and the mechanical properties, whereas the second set added various amount of nanoclay and discussed thermal stability, flammability and mechanical properties. The addition of 20 wt.% elastomer brought the elongation at break up to 40%. Reduction in heat release capacity as high as 49% was achieved, all nanocomposite samples passed UL 94 V-1 rating. The addition of nanoclay improved the tensile modulus by up to 78%, the elongation at break for all the formulations were negatively affected by the addition of flame retardant and nanoclay.
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