現在市面上主(zhu)要的膠粘劑(ji)分為水性膠,溶劑(ji)型(xing)膠,和(he)熱熔膠,每一類(lei)都(dou)有(you)其獨特(te)(te)的(de)特(te)(te)點(dian)。熱(re)熔膠(jiao)主(zhu)要(yao)是固化時間快,粘接強(qiang)度高(gao),環保(bao),還能起填補作用,特(te)(te)別適(shi)合全自(zi)動(dong)生(sheng)產需求(qiu),適(shi)用的(de)材(cai)料廣。水(shui)性(xing)(xing)膠(jiao)主(zhu)要(yao)是以(yi)水(shui)為溶(rong)(rong)(rong)劑(ji)的(de)膠(jiao)黏劑(ji),主(zhu)要(yao)特(te)(te)點(dian)是無毒不(bu)燃,綠色(se)環保(bao),初粘性(xing)(xing)強(qiang),但(dan)(dan)干燥速度慢,粘性(xing)(xing)不(bu)穩定,對(dui)(dui)溫(wen)度比較敏感,適(shi)用材(cai)料相對(dui)(dui)單一。溶(rong)(rong)(rong)劑(ji)型(xing)膠(jiao)主(zhu)要(yao)以(yi)有(you)機溶(rong)(rong)(rong)劑(ji)為溶(rong)(rong)(rong)劑(ji)的(de)膠(jiao)黏劑(ji),主(zhu)要(yao)特(te)(te)點(dian)是粘接強(qiang)度高(gao),耐水(shui)性(xing)(xing)好,但(dan)(dan)揮發性(xing)(xing)大(da)(da),污(wu)染(ran)較大(da)(da)等。隨著(zhu)近(jin)年(nian)社(she)會提倡環保(bao),人們愈(yu)加認(ren)識到溶(rong)(rong)(rong)劑(ji)型(xing)膠(jiao)帶來的(de)危害(hai)。
水性膠雖然是(shi)環保的,但(dan)與熱熔(rong)膠相比應用(yong)領域太少,而(er)熱(re)熔(rong)膠(jiao)(jiao)的應用(yong)非常廣泛,取(qu)代(dai)水性膠(jiao)(jiao)和溶劑型(xing)膠(jiao)(jiao)黏劑是(shi)未來發展的方向。這樣不僅能(neng)減少溶劑排放,避免造成(cheng)環境(jing)污染,還可以(yi)保護生(sheng)產工(gong)人(ren)的健(jian)康,所以(yi)說熱(re)熔(rong)膠(jiao)(jiao)即環保又安全(quan)!
