BMI对苯并噁嗪树脂的改性  

Modification of BMI to benzoxazine resin

作　　者：关瑜[1] 李玲[1] 杨学斌[1] 

机构地区：[1]中北大学材料科学与工程学院,山西省太原市030051

出　　处：《合成树脂及塑料》2015年第1期21-23,共3页China Synthetic Resin and Plastics

摘　　要：用具有优良热性能的双马来酰亚胺(BMI)改性苯并噁嗪(BOZ)树脂,制备了BOZ/BMI树脂。采用旋转黏度计和热重分析仪研究了BMI对BOZ树脂流变性能及热稳定性能的影响,并建立了等温黏度流变模型。结果表明:BOZ/BMI树脂的热稳定性能显著提高,w(BMI)为20%的BOZ/BMI树脂在800℃时的残炭率为44.56%,远高于BOZ树脂的35.12%;采用等温黏度流变模型可预测BOZ/BMI树脂任意时间与温度条件下的黏度数据。Bismaleimide（BMI） with excellent thermal property was used to modify benzoxazine（BOZ） resin, and the BOZ/BMI resin was obtained. The effects of BMI on the rheological property and thermal stability of the BOZ resin were studied by means of rotational viscometer and thermogravimetric（TG） analyzer,and the isothermal viscosity rheological model was established. The results indicate that the thermal stability of the BOZ/BMI resin is significantly improved. When the mass fraction of BMI is 20%,the carbon residual rate of BOZ/BMI resin at 800 ℃ is 44.56%,which is much higher than that of BOZ resin of 35.12%. The viscosity of BOZ/BMI resin at any time and temperature can be predicted by isothermal viscosity rheological model.

关 键 词：苯并噁嗪树脂 双马来酰亚胺 等温黏度流变模型 热稳定性 

分 类 号：TQ323.1[化学工程—合成树脂塑料工业]