摘要
研究了混炼工艺对聚亚丙基碳酸酯（ＰＰＣ）／ＳＢＲ共混物性能的影响。结果表明，采用混炼工艺Ａ（ＳＢＲ＋ＰＰＣ→配合剂→陈化１２ｈ→ＭＡ→返炼→硫化），可在提高硫化体系活性的基础上消除陈化对共混物拉伸性能的影响；将ＰＰＣ与ＳＢＲ预混后混炼，可提高共混物的定伸应力和硬度，降低扯断永久变形；停放时间延长（２ｈ以内）有利于共混物性能的提高；薄通次数增加对共混物性能无显著影响。
The influence of mixing procedure on the properties of PPC/SBR blend was investigated.The results showed that the aging effect on the tensile strength of PPC/SBR blend was eliminated by using the mixing procedure A(SBR+PPC→compounding ingredients→aging for 12 h→MA→remilling→curing )while the activity of curing system increased;the modulus and hardness of the blend increased,and its tensile set at break decreased as PPC/SBR blend was premixed;the better properties of the blend was beneficial from the longer conditioning time(up to 12 h);the increase of mill runs had no significant effect on the blend properties.
出处
《橡胶工业》
CAS
北大核心
1998年第11期643-646,共4页
China Rubber Industry
基金
国家自然科学基金
中国科学院高分子物理联合开放研究实验室资助项目
