現在市面上主要的膠粘劑分為(wei)水(shui)性膠,溶劑型膠,和熱(re)熔膠,每(mei)一類都(dou)有其獨特(te)的特(te)點(dian)。熱熔膠(jiao)主(zhu)(zhu)要(yao)(yao)(yao)是(shi)固化時間快,粘(zhan)接(jie)強度高(gao),環保(bao),還能起填(tian)補(bu)作用,特(te)別適(shi)(shi)合全自動生產需求(qiu),適(shi)(shi)用的材料廣。水性(xing)(xing)膠(jiao)主(zhu)(zhu)要(yao)(yao)(yao)是(shi)以水為(wei)溶(rong)(rong)劑(ji)的膠(jiao)黏劑(ji),主(zhu)(zhu)要(yao)(yao)(yao)特(te)點(dian)是(shi)無毒不燃(ran),綠色環保(bao),初粘(zhan)性(xing)(xing)強,但干燥速(su)度慢(man),粘(zhan)性(xing)(xing)不穩定,對溫度比(bi)較敏感(gan),適(shi)(shi)用材料相對單一。溶(rong)(rong)劑(ji)型(xing)(xing)膠(jiao)主(zhu)(zhu)要(yao)(yao)(yao)以有機溶(rong)(rong)劑(ji)為(wei)溶(rong)(rong)劑(ji)的膠(jiao)黏劑(ji),主(zhu)(zhu)要(yao)(yao)(yao)特(te)點(dian)是(shi)粘(zhan)接(jie)強度高(gao),耐水性(xing)(xing)好,但揮發性(xing)(xing)大(da),污染較大(da)等。隨著近年社會提倡環保(bao),人們愈加認(ren)識到(dao)溶(rong)(rong)劑(ji)型(xing)(xing)膠(jiao)帶來的危害。
水性膠雖然是環保的,但與(yu)熱熔膠相比應(ying)用(yong)領域太少(shao),而(er)熱熔膠(jiao)的(de)應(ying)用(yong)非(fei)常廣泛,取代水(shui)性膠(jiao)和溶劑型膠(jiao)黏劑是未來發(fa)展(zhan)的(de)方向。這樣不僅能減少(shao)溶劑排放,避(bi)免造成環境污染,還(huan)可(ke)以保護生產工(gong)人(ren)的(de)健康(kang),所(suo)以說熱熔膠(jiao)即環保又安(an)全!
