| 聚合物材料中的慢极化介电弛豫 |
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| 引用本文： | 唐新桂,范仰才,蒋力立,李景德,周歧发. 聚合物材料中的慢极化介电弛豫[J]. 材料科学与工程学报, 1999, 0(2) |
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| 作者姓名： | 唐新桂 范仰才 蒋力立 李景德 周歧发 |
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| 作者单位： | 广东工业大学，中山大学 |
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| 摘 要： | 用时域方法在低频范围研究了涤纶、聚丙烯、线性低密度聚乙烯、绝缘纸等聚合物材料的介电谱，结果发现随着温度的升高，聚合物的慢极化出现多弛豫机构，而且介电响应函数有别于传统的经验公式。慢极化弛豫机构来源于空间电荷和缺陷的扩散，宏观表现为吸收电流，用时域微分谱可解释这一结果
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| 关 键 词： | 聚合物；响应函数；时域微分谱；空间电荷；吸收电流 |
Slow Polarize Dielectric Relaxation in Polymers Materials |
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| TANG Xin gui,FAN Yang cai,JIANG Li li,LI Jing de,ZHOU Qi fa. Slow Polarize Dielectric Relaxation in Polymers Materials[J]. Journal of Materials Science and Engineering, 1999, 0(2) |
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| Authors: | TANG Xin gui FAN Yang cai JIANG Li li LI Jing de ZHOU Qi fa |
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| Abstract: | Polyethylene terephthalate,polypropylene,insulating papers and linear low density polyethylene were studied using time domain dielectric spectrometer at low frequency range.The results show that these are a lot of slow polarize relaxation mechanism arise from the temperature rising and the response function different from the traditional experiment law.The mechanisms of slow polarize relaxation come from the diffuse of space charges and traps,it is absorption current in the macroscopic.Time domain differential spectroscopy can explain the results. |
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| Keywords: | polymers respones function time domain differential spectroscopy space charge absorption current |
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