現在(zai)市面上(shang)主要的膠(jiao)粘劑分為水性(xing)膠(jiao),溶劑型膠(jiao),和熱熔膠,每(mei)一(yi)類都有其獨特(te)的(de)特(te)點。熱(re)熔膠(jiao)主(zhu)(zhu)(zhu)要(yao)是(shi)固化(hua)時間快(kuai),粘(zhan)接強度高,環(huan)(huan)保(bao),還(huan)能起填補(bu)作用(yong),特(te)別適合全自動生產需(xu)求,適用(yong)的(de)材(cai)料廣。水(shui)(shui)性(xing)(xing)膠(jiao)主(zhu)(zhu)(zhu)要(yao)是(shi)以水(shui)(shui)為溶(rong)劑(ji)(ji)的(de)膠(jiao)黏劑(ji)(ji),主(zhu)(zhu)(zhu)要(yao)特(te)點是(shi)無毒不燃(ran),綠色(se)環(huan)(huan)保(bao),初粘(zhan)性(xing)(xing)強,但(dan)(dan)干(gan)燥速度慢(man),粘(zhan)性(xing)(xing)不穩定,對(dui)溫(wen)度比較敏感,適用(yong)材(cai)料相對(dui)單一(yi)。溶(rong)劑(ji)(ji)型(xing)膠(jiao)主(zhu)(zhu)(zhu)要(yao)以有機溶(rong)劑(ji)(ji)為溶(rong)劑(ji)(ji)的(de)膠(jiao)黏劑(ji)(ji),主(zhu)(zhu)(zhu)要(yao)特(te)點是(shi)粘(zhan)接強度高,耐水(shui)(shui)性(xing)(xing)好,但(dan)(dan)揮發性(xing)(xing)大(da),污(wu)染較大(da)等。隨著(zhu)近年社會提倡環(huan)(huan)保(bao),人們(men)愈加認識到(dao)溶(rong)劑(ji)(ji)型(xing)膠(jiao)帶來的(de)危害。
水性(xing)膠雖然是環保(bao)的,但與熱(re)熔膠相比應用(yong)領域太少(shao),而熱熔(rong)膠的(de)應用(yong)非(fei)常廣(guang)泛(fan),取代(dai)水性膠和溶(rong)劑(ji)型膠黏劑(ji)是未來發展的(de)方向。這樣不僅能(neng)減(jian)少(shao)溶(rong)劑(ji)排放,避(bi)免(mian)造(zao)成環(huan)境污染,還可以保護生(sheng)產工人的(de)健康,所以說熱熔(rong)膠即環(huan)保又安全(quan)!
