将芳香二胺、N-取代苯基马来酰亚胺等组分引入双马树脂以降低固化物交联密度，研究了纳米TiO2对该改性双马树脂固化反应性和固化树脂热稳定性的影响。利用差热分析、凝胶特征曲线对树脂的固化反应性进行研究，采用热重分析和红外分析表征固化树脂的热稳定性和树脂固化前后IR光谱变化特征。结果表明：该系列树脂基体具有较低的熔点（70～90℃），良好的溶解性，大多数预聚体可溶解于丙酮溶剂；纳米TiO2的引入可使固化温度下降45～105℃，固化物的耐热温度指数提高19～27℃。
A series of new resin systems were prepared by using diamines and N-phenol maleimide to modify BMI resin. The effect of nanometer sized TiO2 on reactivity and thermal properties of modified BMI resins was determined by gel characteristics, FT-IR and thermal analysis technology. The results show that the modified BMI resins have a low melting point (70～90℃) and better solubility, and are soluble in acetone. The nanometer sized TiO2 could decrease the curing temperature by 45～105℃ and increase the thermal stability of the cured resins as well.
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