EPDM中的低分子量液体

IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 1997-10-19 DOI:10.1109/CEIDP.1997.641102

Liwen Cao, R. Hackam

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引用次数: 5

摘要

乙丙二烯单体(EPDM)广泛应用于室外绝缘材料。聚合物材料的电性能受到表面疏水性的影响，而表面疏水性又受到表面和体中存在的低分子量(LMW)流体的影响。在本论文中，LMW流体是用溶剂在高温下提取的。分析用己烷将液体从EPDM中完全除去。然后将试样置于不同温度下(50、150、240和380/spl℃)，以研究LMW流体的损失和产生。通过测量各种处理后的接触角来表征表面性质，并将其与LMW流体的存在联系起来。

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Low molecular weight fluids in EPDM

Ethylene propylene diene monomer (EPDM) is widely used in outdoor insulations. The electrical performance of the polymer material is influenced by the surface hydrophobicity which in turn is affected by the presence of low molecular weight (LMW) fluids on the surface and in the bulk. In the present paper, the LMW fluid is extracted using a solvent at an elevated temperature. Analytical hexane is used to completely remove the fluid from the EPDM. The specimens are then subjected to heat at different temperatures (50, 150, 240, and 380/spl deg/C) in order to investigate the loss and generation of LMW fluid. The contact angle is measured after various treatments with view to characterizing the surface property and correlate it with the presence of LMW fluid.

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来源期刊

IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena

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