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電(dian)(dian)木(mu)(mu)是塑料中一個投入(ru)工業生產的品種，電(dian)(dian)木(mu)(mu)的化學稱叫喊(han)酚醛塑料，它(ta)具有較高(gao)的機械強度、良好的絕緣(yuan)性，耐熱、耐腐蝕，因此常用(yong)(yong)于制造電(dian)(dian)器材(cai)料，如開關、燈頭、耳機、電(dian)(dian)話機殼(ke)、儀(yi)表(biao)殼(ke)等(deng)，“電(dian)(dian)木(mu)(mu)”由此而得名。酚醛塑料是一種硬(ying)而脆的熱固性材(cai)料。電(dian)(dian)木(mu)(mu)的特性是不(bu)吸水(shui)、不(bu)導(dao)電(dian)(dian)、耐高(gao)溫、強度高(gao)，多用(yong)(yong)在(zai)電(dian)(dian)器上，因像木(mu)(mu)頭相同絕緣(yuan)性高(gao)可(ke)塑性好，所以被(bei)叫做“電(dian)(dian)木(mu)(mu)”。電(dian)(dian)木(mu)(mu)是用(yong)(yong)粉狀的酚醛樹脂，加進鋸木(mu)(mu)屑、石棉或陶土等(deng)混

　　一、電(dian)(dian)木(mu)(mu)(mu)簡介(jie)。　　電(dian)(dian)木(mu)(mu)(mu)，俗稱膠木(mu)(mu)(mu)，學名酚醛模塑料(liao)，是(shi)(shi)熱固型塑膠的(de)(de)一種，也是(shi)(shi)至(zhi)早投入(ru)工(gong)業(ye)出產的(de)(de)塑料(liao)。電(dian)(dian)木(mu)(mu)(mu)注塑用到(dao)的(de)(de)電(dian)(dian)木(mu)(mu)(mu)粉(fen)(fen)(fen)是(shi)(shi)由酚醛樹脂，鋸木(mu)(mu)(mu)粉(fen)(fen)(fen)，以及(ji)硬化劑(ji)(ji)，固化劑(ji)(ji)，增塑劑(ji)(ji)，著(zhu)色劑(ji)(ji)，潤(run)滑(hua)劑(ji)(ji)，固化增強(qiang)劑(ji)(ji)等添(tian)加劑(ji)(ji)組(zu)成的(de)(de)。更(geng)可以對電(dian)(dian)木(mu)(mu)(mu)粉(fen)(fen)(fen)進行各(ge)種需求的(de)(de)改性，電(dian)(dian)木(mu)(mu)(mu)粉(fen)(fen)(fen)中有40%左右的(de)(de)添(tian)加劑(ji)(ji)。酚醛樹脂是(shi)(shi)苯酚與甲醛的(de)(de)縮聚物，具有機(ji)械強(qiang)度高，性能穩定，耐(nai)(nai)酸堿，耐(nai)(nai)高溫低(di)溫，硬度高耐(nai)(nai).磨損，不親水，電(dian)(dian)器絕緣性優異是(shi)(shi)一種理