制造電(dian)子，電(dian)氣設備各種元器(qi)件的(de)材料除了機械強度，耐溫，易成型(xing)等基本要求外，對電(dian)性能(neng)的(de)要求因用(yong)途不同而差異很(hen)大。

電(dian)(dian)(dian)(dian)子(zi)工(gong)業(ye)中大(da)量的(de)(de)塑(su)料(liao)(liao)用作(zuo)絕緣材料(liao)(liao)，希望在高(gao)溫，高(gao)頻下的(de)(de)絕緣電(dian)(dian)(dian)(dian)阻高(gao)而介電(dian)(dian)(dian)(dian)性(xing)(xing)能穩定(ding)，對(dui)有(you)電(dian)(dian)(dian)(dian)磁(ci)波發射(she)的(de)(de)電(dian)(dian)(dian)(dian)子(zi)設(she)(she)備既要(yao)不讓(rang)電(dian)(dian)(dian)(dian)磁(ci)波射(she)向周圍環境，又(you)要(yao)阻隔外界電(dian)(dian)(dian)(dian)磁(ci)波對(dui)電(dian)(dian)(dian)(dian)子(zi)設(she)(she)備正常工(gong)作(zuo)的(de)(de)干擾，所以需(xu)要(yao)一(yi)(yi)種有(you)一(yi)(yi)定(ding)導電(dian)(dian)(dian)(dian)性(xing)(xing)的(de)(de)塑(su)料(liao)(liao)來傳導和屏(ping)蔽(bi)電(dian)(dian)(dian)(dian)磁(ci)波，塑(su)料(liao)(liao)的(de)(de)一(yi)(yi)大(da)優點是(shi)質(zhi)量輕，易加工(gong)，但因是(shi)高(gao)分(fen)(fen)子(zi)化合(he)物均(jun)有(you)不導電(dian)(dian)(dian)(dian)性(xing)(xing)，但若能從組成或分(fen)(fen)子(zi)結構上作(zuo)改(gai)進賦(fu)予良好的(de)(de)導電(dian)(dian)(dian)(dian)性(xing)(xing)則對(dui)電(dian)(dian)(dian)(dian)子(zi)設(she)(she)備的(de)(de)輕巧和功能的(de)(de)延伸(shen)是(shi)一(yi)(yi)種新穎材料(liao)(liao);有(you)一(yi)(yi)定(ding)磁(ci)場強度的(de)(de)磁(ci)性(xing)(xing)塑(su)料(liao)(liao)能代替天然的(de)(de)磁(ci)鐵，也是(shi)電(dian)(dian)(dian)(dian)子(zi)工(gong)業(ye)所追求的(de)(de)新材料(liao)(liao)。

因(yin)此把具有絕緣，屏蔽(bi)，導電，導磁功能(neng)的塑料在電子工業中的應用進(jin)(jin)行羅列和分析，對材料的生(sheng)產(chan)者(zhe)是一種促進(jin)(jin)，對材料的使用者(zhe)是一種互通和借鑒。