The poor heat resistance of acrylonitrile-butadiene-styrene copolymer (ABS) is a significant limitation that restricts its application in various fields, including automotive, electronic devices and other fields. To address this issue, we employed a strategy involving the crosslinking of a macromolecular heat-resistant agent to enhance the heat resistance of ABS. Poly(N-(4-fluorophenyl) maleimide-alt-triallyl isocyanurate) (PFT), a reactive heat-resistant agent known for its rigid and reactive structures, was selected for this purpose. ABS/PFT composites were prepared by subjecting them to γ-ray irradiation, resulting in crosslinking through a solid-state interfacial reaction (SSIR) between PFT and ABS. The results show that the heat distortion temperature (HDT), glass transition temperature (Tg), tensile strength and bending strength of the irradiated ABS/PFT (i-ABS/PFT) composites increased by 23.86%, 23.35%, 20.0% and 9.0%, respectively compared to pure ABS. Furthermore, ABS/PFT composites with SSIR exhibit the highest heat resistance, Tg and HDT compared to non-SSIR ABS. The work presented in this paper provides a new direction for the heat-resistant modification of ABS and will expand its application in new fields.

中文翻译：

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基于固态界面反应的ABS/聚（N-（4-氟苯基）马来酰亚胺-alt-三烯基异氰尿酸酯）复合材料的耐热性增强


丙烯腈-丁二烯-苯乙烯共聚物 （ABS） 的耐热性差是一个重大限制，限制了其在各个领域的应用，包括汽车、电子设备和其他领域。为了解决这个问题，我们采用了一种涉及大分子耐热剂交联的策略来增强 ABS 的耐热性。为此，我们选择了聚（N-（4-氟苯基）马来酰亚胺-alt-三烯基异氰尿酸酯）（PFT），一种以其刚性和反应性结构而闻名的反应性耐热剂。ABS/PFT 复合材料是通过γ射线照射制备的，导致 PFT 和 ABS 之间的固态界面反应 （SSIR） 交联。结果表明，辐照后的ABS/PFT（i-ABS/PFT）复合材料的热变形温度（HDT）、玻璃化转变温度（Tg）、拉伸强度和弯曲强度分别比纯ABS提高了23.86%、23.35%、20.0%和9.0%。此外，与非 SSIR ABS 相比，具有 SSIR 的 ABS/PFT 复合材料表现出最高的耐热性、Tg 和 HDT。本文介绍的工作为 ABS 的耐热改性提供了新的方向，并将扩大其在新领域的应用。