一、碳纖維膠是什么膠
碳纖維膠是一種膠水,是碳纖維加(jia)固施工(gong)使(shi)用(yong)的膠水(shui),具有粘(zhan)度低、強(qiang)度高(gao)、浸潤性(xing)和滲透性(xing)好,觸變性(xing)強(qiang)、施工(gong)性(xing)能(neng)好等特點,固化后的膠層物(wu)理(li)機(ji)械(xie)性(xing)能(neng)和強(qiang)韌性(xing)能(neng)優異,且不含揮發性(xing)溶劑、安全(quan)無(wu)毒、施工(gong)方便,廣泛應用(yong)于加(jia)固構件表面纖維類(lei)片(pian)材的粘(zhan)貼。
二、碳纖維膠的作用是什么
碳(tan)(tan)纖(xian)維(wei)膠(jiao)(jiao)(jiao)有三(san)種(zhong)(zhong),分別是碳(tan)(tan)纖(xian)維(wei)底膠(jiao)(jiao)(jiao)、碳(tan)(tan)纖(xian)維(wei)找平(ping)膠(jiao)(jiao)(jiao)和(he)碳(tan)(tan)纖(xian)維(wei)浸漬膠(jiao)(jiao)(jiao)三(san)種(zhong)(zhong),三(san)種(zhong)(zhong)碳(tan)(tan)纖(xian)維(wei)膠(jiao)(jiao)(jiao)的作用各有不同:
1、碳纖維底膠(jiao)主要(yao)用于加固構(gou)件表面(mian)底層涂(tu)抹修補。
2、碳纖維找平膠用于加固(gu)構件(jian)表面缺陷的(de)修補、找平。
3、碳(tan)纖維(wei)浸漬(zi)膠用于建(jian)筑物(wu)加固改(gai)造過(guo)程中構件表面(mian)如混凝(ning)土、磚、巖(yan)石等基材與碳(tan)纖維(wei)、玻璃(li)纖維(wei)及其它纖維(wei)類片材的浸漬(zi)粘(zhan)貼。
三、碳纖維膠多久才能干透
碳纖維加固的效(xiao)果很(hen)大程度上會受到碳纖(xian)(xian)(xian)維(wei)(wei)膠(jiao)的影響,碳纖(xian)(xian)(xian)維(wei)(wei)膠(jiao)有(you)很(hen)多(duo)技術參數,主(zhu)要包括物(wu)理性能、力學性能、耐(nai)久(jiu)性能等方面,這些性能的優劣對碳纖(xian)(xian)(xian)維(wei)(wei)膠(jiao)的固化時間(jian)也有(you)一定(ding)影響,那(nei)么碳纖(xian)(xian)(xian)維(wei)(wei)膠(jiao)多(duo)久(jiu)干(gan)透呢?
碳(tan)纖維膠干透一般(ban)稱為“指(zhi)干”,即摸上去手指(zhi)手感干燥(zao),此時(shi)(shi)(shi)再進(jin)行下一道(dao)工(gong)序,這一時(shi)(shi)(shi)間并不(bu)(bu)(bu)固(gu)定,根據(ju)現場氣溫不(bu)(bu)(bu)同有所(suo)不(bu)(bu)(bu)同:通常碳(tan)纖維膠施(shi)工(gong)要求現場溫度(du)不(bu)(bu)(bu)低于(yu)5℃(溫度(du)在5°C下時(shi)(shi)(shi),請選用低溫固(gu)化(hua)(hua)型(xing)碳(tan)纖維系列膠),環境溫度(du)20-25℃時(shi)(shi)(shi)固(gu)化(hua)(hua)時(shi)(shi)(shi)間不(bu)(bu)(bu)少于(yu)3天,平均溫度(du)為10℃時(shi)(shi)(shi)固(gu)化(hua)(hua)時(shi)(shi)(shi)間不(bu)(bu)(bu)少于(yu)7天。