To improve the mechanical and tribological properties of bismaleimide (BMI) resin, a novel Si-containing benzoxazine (Si-BOZ) monomer was synthesized using a solvent process and N-(2-aminoethyl)-3-aminopropyltrimethoxysilane as a silane coupling agent. The novel Si-BOZ monomer was subsequently blended with BMI to prepare Si-BOZ/BMI polymer alloys. Furthermore, the effect of Si-BOZ content on the mechanical, tribological, and thermal properties of Si-BOZ/BMI alloys was investigated. The results revealed that the addition of Si-BOZ to BMI improved the mechanical properties and wear resistance of Si-BOZ/BMI; moreover, the glass transition temperature of cured Si-BOZ/BMI alloys was lower than that of pure BMI resin. These results confirmed that the increase in wear resistance of Si-BOZ/BMI alloys can be attributed to the increase in thermal resistance and improvement in mechanical performance owing to the addition of Si-BOZ.

为了改善双马来酰亚胺（BMI）树脂，使用溶剂处理和单体合成的新的含Si苯并恶嗪（SI-BOZ）的机械和摩擦学特性Ñ-（2-氨基乙基）-3-氨基丙基三甲氧基硅烷作为硅烷偶联剂。随后将新型Si-BOZ单体与BMI共混以制备Si-BOZ / BMI聚合物合金。此外，研究了Si-BOZ含量对Si-BOZ / BMI合金的机械，摩擦学和热学性能的影响。结果表明，在BMI中添加Si-BOZ可以改善Si-BOZ / BMI的机械性能和耐磨性。此外，固化的Si-BOZ / BMI合金的玻璃化转变温度低于纯BMI树脂的玻璃化转变温度。这些结果证实，由于添加了Si-BOZ，Si-BOZ / BMI合金的耐磨性的提高可归因于耐热性的提高和机械性能的改善。