【作者】 冯德才；

【导师】 杨其；

【作者基本信息】 四川大学 ， 材料加工工程， 2006， 硕士

【摘要】 MC尼龙(单体浇铸尼龙)具有质量轻、不产生噪音、机械性能好和良好的回弹性等独特性能。然而与金属相比，MC尼龙存在强度、模量和热变形温度较低，尺寸稳定性差，对缺口冲击敏感，因而限制其应用的范围。所以有必要对MC尼龙进行改性，提高其综合性能。 己内酰胺阴离子开环聚合是制备MC尼龙及其复合材料的重要方法，合成过程中各种反应条件的变化对制品的转化率、分子量、分子量分布、结晶度、形态和力学性能有很大的影响。而引发剂(Initiator)和活化剂(Activator)用量的变化则是主要影响因素之一。引发剂主要控制聚合反应速度，而活化剂主要控制制品的分子量。 无机刚性粒子原位聚合法简单实用，有利于进行更深入的研究。但要解决好纳米粒子在基体的分散性。 本文通过阴离子聚合法，以氢氧化钠(NaOH)为引发剂和异佛尔酮二异氰酸酯(IPDI)为活化剂，制备了对四个纯MC尼龙系列，分别为：(1)保持IPDI用量不变，改变NaOH用量制备的MC尼龙；(2)保持NaOH用量不变，改变更多还原

【Abstract】 MC nylon, is called monomer casting nylon. MC nylon has lots of very good properties, such as light quality, no noise and good mechanical properties, and so on. But comparing to metal, owing to MC its low strength, modulus and heat distortion temperature, bad size stabilization, and high notch sensitivity, the usefulness of MC nylon is still limited. So we have to improve its integrated properties.The anionic ring-opening polymerization of ε -caprolactam is an important method for synthesis of nylon 6 and its copolymers. It is well known that the changing of synthesize conditions has a substantial effect on the degree of conversion, the molecular weight , molecular weight distribution, degree of crystallinity, morphology, and mechanical properties behavior. The amount of catalysts, containing initiators and activators, is one of the most important factors controlling the rate of polymerization. The initiators control the polymerization rate, and the activator control the molecular weight.Rigid inorganic particles in situ polymerization so simple that is good for deep study, but must to solve the dispersibility in the matrix.we synthesized four series MC nylon by anionic polymerization of CL using更多还原