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采用喷雾干燥工艺制得无机黏土/超细全硫化粉末丁腈橡胶的共混粉末,再用熔体共混工艺制备了三元乙丙橡胶/黏土纳米复合材料,研究了其微观分散形态。结果表明,采用喷雾干燥工艺并利用超细全硫化胶乳的结构特点,可使未经有机改性的无机黏土以剥离型结构纳米分散在三元乙丙橡胶基体中。
Inorganic / superfine fully vulcanized powder of nitrile rubber was prepared by spray drying process, and EPDM / clay nanocomposites were prepared by melt blending process. The microscopic dispersion morphology of the composites was studied. The results show that the spray drying process and utilizing the structural characteristics of the ultra-fine fully vulcanized latex can disperse the unmodified inorganic clay into the EPDM matrix with the peeled-off structure.