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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基于固相界面反应的ABS/聚(N-(4-氟苯基)马来酰亚胺-alt-三烯丙基异氰脲酸酯)复合材料的增强耐热性

丙烯腈-丁二烯-苯乙烯共聚物（ABS）较差的耐热性是限制其在各个领域（包括汽车、电子设备等领域）应用的显着限制。为了解决这个问题，我们采用了一种涉及高分子耐热剂交联的策略来增强 ABS 的耐热性。为此目的，选择了聚（N-（4-氟苯基）马来酰亚胺-交替三烯丙基异氰脲酸酯）（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，通过 PFT 和 ABS 之间的固态界面反应 (SSIR) 产生交联。结果表明，辐照后ABS/PFT（i-ABS/PFT）复合材料的热变形温度（℃）、玻璃化转变温度（℃）、拉伸强度和弯曲强度分别提高了23.86%、23.35%、20.0%和9.0%，分别与纯 ABS 相比。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。本文的工作为ABS的耐热改性提供了新的方向，并将拓展其在新领域的应用。