以马来酸化蓖麻油(MACO)为主要原料,利用无机矿物碳酸钙(CaCO3)粒子作为增强材料制备了环境友好的CaCO3/MACO复合材料及其泡沫塑料,研究了CaCO3对MACO力学性能、动态力学性能和热稳定性的影响,分析了无机粒子与基体间的界面相互作用.研究结果表明:CaCO3含量及其与MACO基体聚合物间的界面黏结是影响复合材料强度的关键因素.随CaCO3含量增加,CaCO3/MACO复合材料的刚性增加,当CaCO3添加量为60wt％时,复合材料的拉伸和弯曲强度达到最优,分别为26.7 MPa和46.2 MPa,基本达到部分通用塑料的水平.动态力1学和热稳定性分析证明:CaCO3作为增强填料可有效提高蓖麻油基塑料的储存模量、玻璃化转变温度和热分解温度.这些行为归于MACO树脂中的羧基和羰基官能团能与CaCO3发生氢键和配位键合作用,形成良好的界面结合.CaCO3也能增强CaCO3/MACO复合泡沫塑料,当泡沫塑料密度为0.24 g/cm3时,加入20wt％的CaCO3,其压缩强度和模量比纯泡沫塑料的分别提高142.0％和211.5％.添加矿物填料可降低材料中石油基原料的用量,降低材料成本,增加复合材料与环境的相容性.
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