CAJ | 학술논문

采用熔融缩聚法合成了烯丙基苯并恶嗪(Boz-allyl)，并利用傅立叶变换红外光谱，磁共振氢谱对其表征。用动态扫描量热与热重分析研究了其固化过程及热性能，随后用其对双马来酰亚胺-三嗪树脂(BT树脂)改性，并分析了改性树脂的力学性能。结果表明，Boz-allyl存在两种固化机理，固化物5％和10％热失重温度分别为325，385℃，在800℃时质量保持率仍可达34％，说明其具有优良的热稳定性和耐烧蚀性，用其改性后BT树脂韧性明显提高，当Boz-allyl质量分数为8%时冲击和弯曲强度达到最大值，分别为11.32 kJ/m2和127.11 MPa。
채용용융축취법합성료희병기분병악진(Boz-allyl)，병이용부립협변환홍외광보，자공진경보대기표정。용동태소묘량열여열중분석연구료기고화과정급열성능，수후용기대쌍마래선아알-삼진수지(BT수지)개성，병분석료개성수지적역학성능。결과표명，Boz-allyl존재량충고화궤리，고화물5％화10％열실중온도분별위325，385℃，재800℃시질량보지솔잉가체34％，설명기구유우량적열은정성화내소식성，용기개성후BT수지인성명현제고，당Boz-allyl질량분수위8%시충격화만곡강도체도최대치，분별위11.32 kJ/m2화127.11 MPa。
An allyl benzoxazine(Boz-allyl) was synthesized by melt polycondensation method and the structures of Boz-allyl was confirmed by Fourier transform infrared spectroscopy and nuclear magnetic resonance. Using differential scanning calorimetery and thermal gravimetric analysis,the curing behavior and thermal property of it were probed. Then the bismaleimide-triazine resin modified by Boz-allyl was prepared and its mechanical properties was investigated. The results show a dual cure pattern of Boz-allyl ,while the 5%and 10%weight loss temperatures of polybenzoxazine is 325℃and 385℃respectively,with quality retention rate up to 34%at 800℃,which reveals good heat resistance and ablation resistance. The addition of Boz-allyl into BT resin significantly improves toughness and strength,its impact strength and flexural strength is up to their maximums of 11.32 kJ/m2 and 127.11 MPa when the mass fraction of Boz-allyl is 8%.