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電泳涂裝基本原理是什么?

文章(zhang)來(lai)源 : 山東電(dian)泳(yong)涂(tu)(tu)裝,青島(dao)電(dian)泳(yong)涂(tu)(tu)裝,濰(wei)坊(fang)電(dian)泳(yong)涂(tu)(tu)裝 發(fa)布時間(jian) : 2015-11-21 瀏覽量:次(ci)
電泳涂裝(zhuang)基本原理:
  山東(dong)電泳涂裝被廣泛用于人們的生活中,在汽車、建材、五金、家電等行業中廣泛可見。電泳涂裝是運用在外部增加電場,讓漂浮在電泳溶液里面的顏色原料以及樹脂等顆粒物質,定向遷移并沉積于電極之一的基底表層的涂裝方式。具有水溶性、易于自動化控制等特點。山東電泳涂裝屬于涂裝,利用電流沉積漆膜,其工作原理為“異極相吸”。
  它(ta)是(shi)一(yi)個很(hen)復雜的(de)電(dian)(dian)化學反(fan)應,其(qi)中包括:電(dian)(dian)解、電(dian)(dian)泳、電(dian)(dian)沉積、電(dian)(dian)滲四(si)個同時進(jin)行的(de)過程。

  1.電(dian)(dian)(dian)(dian)解反(fan)(fan)應:當(dang)電(dian)(dian)(dian)(dian)流通過電(dian)(dian)(dian)(dian)解電(dian)(dian)(dian)(dian)質水溶液時,水便發生電(dian)(dian)(dian)(dian)解反(fan)(fan)應,在(zai)(zai)陽極(ji)(ji)(ji)放(fang)(fang)出氫(qing)氣,陰(yin)極(ji)(ji)(ji)放(fang)(fang)出氧氣,所以在(zai)(zai)涂裝過程中應盡量(liang)降低電(dian)(dian)(dian)(dian)壓(ya)并防止(zhi)其它雜質離子混合(he)(he)漆(qi)(qi)液中;2電(dian)(dian)(dian)(dian)泳反(fan)(fan)應:在(zai)(zai)導(dao)電(dian)(dian)(dian)(dian)媒介(jie)物(wu)(wu)質里面,攜(xie)帶(dai)電(dian)(dian)(dian)(dian)荷的(de)(de)(de)膠體(ti)微(wei)(wei)(wei)粒(li)(li)在(zai)(zai)電(dian)(dian)(dian)(dian)場的(de)(de)(de)推動(dong)之下往相反(fan)(fan)的(de)(de)(de)電(dian)(dian)(dian)(dian)極(ji)(ji)(ji)轉(zhuan)移(yi)的(de)(de)(de)現(xian)象(xiang)。例如陰(yin)極(ji)(ji)(ji)在(zai)(zai)電(dian)(dian)(dian)(dian)泳的(de)(de)(de)過程中攜(xie)帶(dai)正電(dian)(dian)(dian)(dian)荷的(de)(de)(de)膠體(ti)微(wei)(wei)(wei)粒(li)(li)夾(jia)帶(dai)和粘(zhan)附(fu)顏料微(wei)(wei)(wei)粒(li)(li),由電(dian)(dian)(dian)(dian)泳流程轉(zhuan)移(yi)到(dao)陰(yin)極(ji)(ji)(ji)。;3.電(dian)(dian)(dian)(dian)沉積(ji)反(fan)(fan)應:帶(dai)電(dian)(dian)(dian)(dian)的(de)(de)(de)聚合(he)(he)物(wu)(wu)分別在(zai)(zai)陰(yin)極(ji)(ji)(ji)或陽極(ji)(ji)(ji)沉積(ji)的(de)(de)(de)過程,這(zhe)是一種(zhong)漆(qi)(qi)微(wei)(wei)(wei)粒(li)(li)在(zai)(zai)電(dian)(dian)(dian)(dian)極(ji)(ji)(ji)上的(de)(de)(de)沉淀累積(ji)現(xian)象(xiang);4.電(dian)(dian)(dian)(dian)滲反(fan)(fan)應:沉積(ji)的(de)(de)(de)電(dian)(dian)(dian)(dian)泳涂膜(mo)收縮、脫(tuo)去(qu)溶劑和水,形成均勻致密的(de)(de)(de)濕(shi)膜(mo)。

 


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