Preparation and characterization of a novel allyl ether naphthalene phenolic modified bismaleimide resin and its composites,Journal of Applied Polymer Science

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Preparation and characterization of a novel allyl ether naphthalene phenolic modified bismaleimide resin and its composites
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2024-06-05 , DOI: 10.1002/app.55839
Yinchi Su ₁ , Fan Wang ₁ , Yaping Zhu ₁ , Huimin Qi ₁

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Allyl ether naphthol resin (ANPF) was synthesized by introducing 1,5-dihydroxynaphthalene and 2,7-dihydroxynaphthalene into phenolic resin and was copolymerized with 4,4′-bismaleimidodiphenylmethane resin (BDM) to obtain allyl ether naphthol-modified bismaleimide resins (15-ANPF-BDM and 27-ANPF-BDM). The resulting thermal stability and glass transition temperature (T_g) were explored by thermogravimetric and dynamic mechanical analyses. The char yield of 15-ANPF-BDM at a temperature of 800°C was 46.0%. Additionally, the T_g of 15-ANPF-BDM was measured as 311°C, which is an increase of 44°C compared to that of c. The mechanical properties of the ANPF-BDM/quartz fiber (Qf) composites were also investigated. The results reveal that ANPF-BDM/Qf composites exhibit similar mechanical strength to APF-BDM/Qf composites at room temperature. In addition, the mechanical properties of the ANPF-BDM/ Qf composites demonstrated significant improvement in mechanical properties retained significantly improved at 200°C, with a 68% flexural strength retention and a 96% interlaminar shear retention of 15-ANPF-BDM/Qf composites. Thus, ANPF-BDM/Qf composites exhibit outstanding mechanical properties at 200°C.

中文翻译：

新型烯丙基醚萘酚醛改性双马来酰亚胺树脂及其复合材料的制备与表征

将1,5-二羟基萘和2,7-二羟基萘引入到酚醛树脂中合成烯丙基醚萘酚树脂(ANPF),并与4,4′-双马来酰亚胺二苯基甲烷树脂(BDM)共聚得到烯丙基醚萘酚改性双马来酰亚胺树脂(15 -ANPF-BDM 和 27-ANPF-BDM)。通过热重分析和动态力学分析探讨了所得的热稳定性和玻璃化转变温度（T _g ）。 15-ANPF-BDM在800℃温度下的炭收率为46.0%。另外，测得15-ANPF-BDM的T _g 为311℃，与c相比增加了44℃。还研究了 ANPF-BDM/石英纤维 (Qf) 复合材料的机械性能。结果表明，ANPF-BDM/Qf 复合材料在室温下表现出与 APF-BDM/Qf 复合材料相似的机械强度。此外，ANPF-BDM/Qf复合材料的机械性能表现出显着改善，在200°C时机械性能保留率显着提高，弯曲强度保留率为15-ANPF-BDM/Qf的68%，层间剪切保留率为96%复合材料。因此，ANPF-BDM/Qf 复合材料在 200°C 下表现出出色的机械性能。

更新日期：2024-06-05

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