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通过多步交换反应及扩散 -聚合的方法 ,使聚丙烯酸丁酯被嵌入到改性层状结构的白泥层间 ,得到白泥 -聚丙烯酸丁酯纳米复合物的微米级粒子 ;然后将聚氯乙烯与白泥 -聚丙烯酸丁酯进行熔融共混 ,制得具有一定特性的有机 -无机纳米复合材料 ;并对复合材料的缺口冲击强度及动态力学性能进行了研究 ,结果表明 ,白泥 -聚丙烯酸丁酯含量为 5 .0wt%时 ,复合材料的力学性能最佳 ;聚氯乙烯与高含量的白泥 -聚丙烯酸丁酯 (分别为 2 5 .0wt%和 5 0 .0wt% )形成的复合材料 ,在聚氯乙烯的玻璃化转变温度之前 ,储能模量出现先降低而后增加的过程
Through the multi-step exchange reaction and diffusion-polymerization method, polybutylacrylate is embedded into the white mud layer of the modified layered structure to obtain micron-sized particles of white mud-polybutyl acrylate nanocomposite; and then the poly Vinyl chloride and white mud - poly (butyl acrylate) were melt blended to obtain organic-inorganic nanocomposites with certain properties. The notched impact strength and dynamic mechanical properties of the composites were studied. The results showed that the white mud - The polybutyl acrylate content of 5.0wt%, the best mechanical properties of the composite material; polyvinyl chloride and high content of white mud - polybutyl acrylate (respectively 2.5wt% and 5.0wt%) to form Of the composite material, the polyvinyl chloride before the glass transition temperature, the storage modulus first decreased and then increased