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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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聚苯硫醚/低熔点玻璃复合体系的熔融制备与力学性能
DOI: 10.3724/SP.J.1105.2014.13178, PP. 141-149
Keywords: 聚苯硫醚,低熔点玻璃,熔融液-液复合,动态力学分析,拉伸强度
Abstract:
选取低熔点玻璃（LMTG）为无机组分，聚苯硫醚（PPS）为聚合物基体，在适宜的温度下熔融制备了复合体系（PPS/LMTG）.探讨了加工工艺对体系中LMTG无机相形态的影响，研究了加工温度低于LMTG软化温度制备的普通填充体系（PPS/LMTG300）和高于软化温度制备的熔融液-液复合体系（PPS/LMTG400）的力学性能.结果表明，对于所选择的体系，可以在325~450℃内实现有机无机相液-液复合；温度场、剪切场均影响LMTG分散相的形貌，液-液复合过程中LMTG分散相液滴在剪切场中呈现类似变形、破裂、凝聚和松弛回复等特征；与普通填充体系PPS/LMTG300相比，由液-液复合得到的PPS/LMTG400体系中无机相在复合过程中原位生成平均粒径更小的形态，其粒子基体相互作用减弱；且经过液-液复合，粒子分散性得到了较大的改善，PPS/LMTG400体系中即使含量高达66wt%，无机粒子仍然具有优良的增强效果.
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