1、電(dian)(dian)(dian)化(hua)(hua)(hua)(hua)學(xue)保(bao)(bao)(bao)(bao)護(hu)(hu)(hu)+化(hua)(hua)(hua)(hua)學(xue)保(bao)(bao)(bao)(bao)護(hu)(hu)(hu)，環氧(yang)富(fu)(fu)鋅(xin)涂(tu)料是(shi)(shi)通(tong)過電(dian)(dian)(dian)化(hua)(hua)(hua)(hua)學(xue)保(bao)(bao)(bao)(bao)護(hu)(hu)(hu)和(he)化(hua)(hua)(hua)(hua)學(xue)防(fang)腐(fu)蝕(shi)(shi)(shi)，而對金屬(shu)起(qi)到防(fang)腐(fu)蝕(shi)(shi)(shi)作用，電(dian)(dian)(dian)化(hua)(hua)(hua)(hua)學(xue)保(bao)(bao)(bao)(bao)護(hu)(hu)(hu)是(shi)(shi)因(yin)(yin)為(wei)鋅(xin)比(bi)鐵(tie)化(hua)(hua)(hua)(hua)學(xue)活性更大(da)，更容易(yi)失去電(dian)(dian)(dian)子(zi)，而作為(wei)犧牲陽(yang)極(ji)來(lai)保(bao)(bao)(bao)(bao)護(hu)(hu)(hu)鐵(tie)等(deng)金屬(shu)。化(hua)(hua)(hua)(hua)學(xue)保(bao)(bao)(bao)(bao)護(hu)(hu)(hu)是(shi)(shi)因(yin)(yin)為(wei)涂(tu)層(ceng)(ceng)(ceng)形(xing)成致密的(de)(de)(de)(de)配合物(wu)(wu)(wu)涂(tu)層(ceng)(ceng)(ceng)，阻隔(ge)有(you)害物(wu)(wu)(wu)質，滲入到被保(bao)(bao)(bao)(bao)護(hu)(hu)(hu)基(ji)(ji)層(ceng)(ceng)(ceng)。例如，當水(shui)分滲入到鋼(gang)(gang)(gang)(gang)鐵(tie)上(shang)時(shi)，就(jiu)形(xing)成了(le)無數個有(you)鋅(xin)粉(fen)(fen)和(he)鋼(gang)(gang)(gang)(gang)鐵(tie)基(ji)(ji)層(ceng)(ceng)(ceng)造成的(de)(de)(de)(de)原電(dian)(dian)(dian)池，由(you)于鋅(xin)的(de)(de)(de)(de)電(dian)(dian)(dian)極(ji)電(dian)(dian)(dian)位(wei)(wei)比(bi)鐵(tie)的(de)(de)(de)(de)電(dian)(dian)(dian)極(ji)電(dian)(dian)(dian)位(wei)(wei)低(di)，所(suo)以鋅(xin)為(wei)正極(ji)陽(yang)極(ji)，鐵(tie)為(wei)負極(ji)陰(yin)極(ji)，電(dian)(dian)(dian)流由(you)鋅(xin)向鋼(gang)(gang)(gang)(gang)鐵(tie)流動，鋼(gang)(gang)(gang)(gang)鐵(tie)便受到了(le)陰(yin)極(ji)保(bao)(bao)(bao)(bao)護(hu)(hu)(hu)。涂(tu)裝的(de)(de)(de)(de)鋼(gang)(gang)(gang)(gang)鐵(tie)，底材的(de)(de)(de)(de)電(dian)(dian)(dian)極(ji)電(dian)(dian)(dian)位(wei)(wei)接近于鋅(xin)的(de)(de)(de)(de)自(zi)然電(dian)(dian)(dian)極(ji)電(dian)(dian)(dian)位(wei)(wei)，就(jiu)可以有(you)效的(de)(de)(de)(de)防(fang)止(zhi)腐(fu)蝕(shi)(shi)(shi)，在強酸(suan)強堿的(de)(de)(de)(de)腐(fu)蝕(shi)(shi)(shi)環境(jing)下，鋅(xin)粉(fen)(fen)與(yu)大(da)氣中的(de)(de)(de)(de)物(wu)(wu)(wu)質發(fa)生反應，形(xing)成氧(yang)化(hua)(hua)(hua)(hua)鋅(xin)、氫氧(yang)化(hua)(hua)(hua)(hua)鋅(xin)、堿式碳酸(suan)鋅(xin)等(deng)腐(fu)蝕(shi)(shi)(shi)產物(wu)(wu)(wu)，這些腐(fu)蝕(shi)(shi)(shi)產物(wu)(wu)(wu)會(hui)增大(da)電(dian)(dian)(dian)阻，減弱(ruo)電(dian)(dian)(dian)化(hua)(hua)(hua)(hua)學(xue)腐(fu)蝕(shi)(shi)(shi)速(su)度，提(ti)高耐久性。2、涂(tu)層(ceng)(ceng)(ceng)的(de)(de)(de)(de)自(zi)修補，環氧(yang)富(fu)(fu)鋅(xin)涂(tu)料的(de)(de)(de)(de)特點之一(yi)是(shi)(shi)技術涂(tu)層(ceng)(ceng)(ceng)上(shang)有(you)的(de)(de)(de)(de)部位(wei)(wei)被碰(peng)擦掉，或者出(chu)現漏涂(tu)等(deng)缺(que)陷，在一(yi)定(ding)范圍的(de)(de)(de)(de)面積內，防(fang)腐(fu)蝕(shi)(shi)(shi)電(dian)(dian)(dian)流也能(neng)夠向鋼(gang)(gang)(gang)(gang)鐵(tie)漏出(chu)部分流動，而起(qi)到保(bao)(bao)(bao)(bao)護(hu)(hu)(hu)作用。在防(fang)腐(fu)蝕(shi)(shi)(shi)電(dian)(dian)(dian)流流過的(de)(de)(de)(de)同時(shi)，鋅(xin)的(de)(de)(de)(de)腐(fu)蝕(shi)(shi)(shi)產物(wu)(wu)(wu)，沉積到漏出(chu)的(de)(de)(de)(de)鋼(gang)(gang)(gang)(gang)鐵(tie)上(shang)，形(xing)成保(bao)(bao)(bao)(bao)護(hu)(hu)(hu)膜。隨著鋼(gang)(gang)(gang)(gang)鐵(tie)表(biao)(biao)面的(de)(de)(de)(de)暴露(lu)，富(fu)(fu)鋅(xin)涂(tu)層(ceng)(ceng)(ceng)不斷的(de)(de)(de)(de)被保(bao)(bao)(bao)(bao)護(hu)(hu)(hu)膜所(suo)覆蓋，陰(yin)極(ji)保(bao)(bao)(bao)(bao)護(hu)(hu)(hu)不起(qi)作用，但在涂(tu)層(ceng)(ceng)(ceng)受到碰(peng)擦，而露(lu)出(chu)新的(de)(de)(de)(de)鋅(xin)表(biao)(biao)面時(shi)，又會(hui)開(kai)始自(zi)我修補，鋅(xin)粉(fen)(fen)含(han)量的(de)(de)(de)(de)高低(di)，并不是(shi)(shi)涂(tu)層(ceng)(ceng)(ceng)耐腐(fu)蝕(shi)(shi)(shi)性能(neng)的(de)(de)(de)(de)決定(ding)因(yin)(yin)素，一(yi)般來(lai)說鋅(xin)粉(fen)(fen)含(han)量為(wei)85%，涂(tu)層(ceng)(ceng)(ceng)性能(neng)最(zui)好，環氧(yang)富(fu)(fu)鋅(xin)涂(tu)料是(shi)(shi)大(da)部分鋼(gang)(gang)(gang)(gang)結(jie)構防(fang)腐(fu)中并不可少的(de)(de)(de)(de)產品(pin)。