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首页> 外文期刊>Journal of Thermoplastic Composite Materials >Characterization of composites based on chlorosulfonated polyethylene rubber/chlorinated natural rubber/waste rubber powder rubber blends
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Characterization of composites based on chlorosulfonated polyethylene rubber/chlorinated natural rubber/waste rubber powder rubber blends

机译：基于氯磺化聚乙烯橡胶/氯化天然橡胶/废橡胶粉末橡胶混合物的复合材料的表征

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Chlorosulfonated polyethylene rubber (CSM) was blended with chlorinated natural rubber (CNR) with various formulations and blend ratios (CSM/CNR: 100/0; 75/25; 50/50; 25/75; 0/100) keeping the total waste rubber powder (WRP) content constant at 50 phr (parts per 100 rubber). Rheological, mechanical, dynamic mechanical and thermal aging properties as well as irradiation resistance were used as characterization of the blends. The amount of CNR in blends significantly affected the properties of the blends. The CSM/CNR/WRP rubber blend (50/50/50) possessed higher tensile strength compared with pure CSM and CNR rubber even after irradiation or thermal aging. Modulus, tensile strength and hardness of the blends appeared to increase, but elongation at break decreased progressively with increasing CNR content. These properties decreased in rubber blends after thermal aging. After irradiation, hardness, modulus and tensile strength increased up to 200 kGy and then decreased significantly for the blends with high CNR content, whereas no change in modulus was observed. CNR and CSM showed damping peaks at about 65 and -45 degrees C, respectively, and these values correlate with the glass transition temperatures (T(g)s) of CNR and CSM, respectively. The shift in the T-g values was observed after blending, suggesting an interfacial interaction between the two phases probably caused by the covulcanization in CSM/CNR blends.
机译：将氯磺化聚乙烯橡胶（CSM）与氯化天然橡胶（CNR）以各种配方和混合比例（CSM / CNR：100/0; 75/25; 50/50; 25/75; 0/100）进行混合橡胶粉（WRP）含量恒定为50 phr（每100份橡胶中的份数）。流变，机械，动态机械和热老化性能以及耐辐照性被用作共混物的表征。共混物中CNR的量显着影响共混物的性能。与纯CSM和CNR橡胶相比，CSM / CNR / WRP橡胶共混物（50/50/50）甚至在辐照或热老化后也具有更高的拉伸强度。共混物的模量，抗张强度和硬度似乎增加，但断裂伸长率随CNR含量的增加而逐渐降低。这些特性在热老化后的橡胶共混物中降低。辐照后，具有高CNR含量的共混物的硬度，模量和拉伸强度增加至200 kGy，然后显着下降，而未观察到模量变化。 CNR和CSM分别在约65和-45℃处显示阻尼峰，这些值分别与CNR和CSM的玻璃化转变温度（T（g）s）相关。共混后观察到T-g值的变化，表明两相之间的界面相互作用可能是由CSM / CNR共混物中的共硫化引起的。

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