纳米SiO_2改性PMMA透明性的研究

Research of nanometer SiO_2 modified PMMA transparency

本课题通过共聚、交联反应两种手段研究纳米SiO2对PMMA透明性的影响。用MMA与St共聚到一定的时候,然后加入交联剂二乙烯苯与SiO2交联固化,通过改变单体组分的比例和交联剂二乙烯苯的百分含量,使其达到要求。结果表明:改性后其力学性能与热学性能都有所提高,同时其光学性能基本没有下降。

The problem passes the copolymerization, the cross-linked reaction two kinds means impact of SiO2 studying nanometer over PMMA transparency. Using MMA and St copolymerization to arrive at when certain, adding and then cross-linked agent two ethenes benzenes and cross-linked solidification of SiO2, makes the person reach a request by the proportion changing the monomer component and two ethene benzene 100 marks cross-linked agent content. Result was indicated： whose mechanics function and thermotics function all improve to some extent after changing nature, whose optical quality does not come down at the same time basically.