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采用八乙烯基倍半硅氧烷(OV-POSS)通过原位聚合法制备了POSS/PMMA杂化材料。通过FTIR、SEM,EDS以及力学性能和透光性雾度的测定等方法对杂化材料的结构和性能进行了表征。结果表明,POSS的加入对PMMA可见光的透过性无影响。POSS含量较低时,POSS的引入能明显改善材料力学性能,但当POSS含量较高时,力学性能下降。当POSS的含量为0.6%时,与纯的PMMA相比,断裂伸长率略有降低,降低了5.8%,然而,其他力学性能均有提高,其中,拉伸模量和强度分别提高了22.7%和32.0%,弯曲强度和模量分别提高了9.8%和27.0%。
POSS / PMMA hybrid materials were prepared by in-situ polymerization using octavinylsilsesquioxane (OV-POSS). The structure and properties of the hybrid materials were characterized by means of FTIR, SEM, EDS and the determination of mechanical properties and transmittance haze. The results show that the addition of POSS has no effect on the PMMA visible light transmittance. POSS can obviously improve the mechanical properties when the content of POSS is low, but the mechanical properties decrease when the content of POSS is high. When the content of POSS is 0.6%, the elongation at break slightly decreases by 5.8% compared with that of pure PMMA. However, the other mechanical properties all increase with the increase of tensile modulus and strength by 22.7% % And 32.0% respectively, the flexural strength and modulus increased by 9.8% and 27.0% respectively.