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填充聚合物的性能取决于基质与填料的性能、成分浓度以及其相互作用。本研究考察了填充纳米和微米二氧化硅粒子的聚氯丁烯/氯磺化聚乙烯(CR/CSM)并用胶的流变性能、机械性能和热稳定性。填充纳米二氧化硅CR/CSM并用胶的密度低于填充微米二氧化硅试样,但是拉伸强度和断裂伸长率则要高得多。根据克劳斯公式(Kraus equation),纳米二氧化硅填充CR/CSM并用胶拥有比微米二氧化硅复合材料更高的Vr0/Vrf值,并呈现出更好的聚合物-填料相互作用。纳米二氧化硅填充CR/CSM并用胶在所有的填料浓度下都是透明的,并且其玻璃化转变温度值高于微米二氧化硅填充胶料。DMA分析表明,纳米填充交联体系的玻璃化转变温度值的确比微米填充交联体系高。纳米填充交联体系的SiO–C键数量多于微米填充交联体系,从而增加了稳定性。
The properties of the filled polymer depend on the properties of the matrix and filler, the concentration of ingredients and their interaction. This study investigated the rheological properties, mechanical properties and thermal stability of polychloroprene / chlorosulfonated polyethylene (CR / CSM) blends filled with nano- and micro-silica particles. Filler nanosilica CR / CSM blends have a lower density than filled silica coupons, but the tensile strength and elongation at break are much higher. According to the Kraus equation, nano-silica filled CR / CSMs and gums have higher Vr0 / Vrf values than the micrometer silica composites and exhibit better polymer-filler interactions. The nanosilica-filled CR / CSM adhesive is transparent at all filler concentrations and has a higher glass transition temperature than the microsilica filler. DMA analysis showed that the glass transition temperature of the nano-filled cross-linked system is indeed higher than that of the micro-filled cross-linked system. Nano-filled cross-linked system with more than the number of SiO-C bonds filled the cross-linked system, thereby increasing the stability.