Study on PMMA performace by nanometre SiO_2 modified

The paper introduces PMMA modified by nanometre SiO_2,and to test property and study on PMMA/SiO_2 nanometre composite.The result showed:mechanical property and thermal property of composite were changed by addition nanometre SiO_2.Its impulse strongth and tensile strongth are fall trend with nanometre SiO_2 increase,but temperature of softening point is increase.