一、碳纖維膠是什么膠
碳纖維膠是一種膠水,是碳纖維加固(gu)施工(gong)(gong)使用的膠(jiao)水(shui),具有粘(zhan)度低(di)、強度高(gao)、浸潤性(xing)(xing)(xing)和(he)滲透性(xing)(xing)(xing)好(hao),觸變性(xing)(xing)(xing)強、施工(gong)(gong)性(xing)(xing)(xing)能好(hao)等特點,固(gu)化后的膠(jiao)層物(wu)理(li)機械性(xing)(xing)(xing)能和(he)強韌性(xing)(xing)(xing)能優異,且不含揮(hui)發性(xing)(xing)(xing)溶劑、安全(quan)無毒、施工(gong)(gong)方便,廣泛(fan)應用于加固(gu)構件表面纖維類片材的粘(zhan)貼。
二、碳纖維膠的作用是什么
碳(tan)纖(xian)(xian)維(wei)膠有(you)(you)三種,分別是碳(tan)纖(xian)(xian)維(wei)底膠、碳(tan)纖(xian)(xian)維(wei)找平(ping)膠和碳(tan)纖(xian)(xian)維(wei)浸漬膠三種,三種碳(tan)纖(xian)(xian)維(wei)膠的作用各有(you)(you)不同:
1、碳纖維底膠主要用于(yu)加固構件表面(mian)底層涂抹修(xiu)補(bu)。
2、碳纖維找(zhao)平膠用于加固構件表面(mian)缺陷的修補(bu)、找(zhao)平。
3、碳纖維(wei)(wei)浸漬(zi)膠(jiao)用于建筑物加固(gu)改造過程中構件(jian)表面(mian)如混凝(ning)土、磚、巖石等基材(cai)與(yu)碳纖維(wei)(wei)、玻璃纖維(wei)(wei)及其它纖維(wei)(wei)類(lei)片材(cai)的浸漬(zi)粘貼。
三、碳纖維膠多久才能干透
碳纖維加(jia)固的(de)效果很大程度(du)上會(hui)受到碳纖(xian)(xian)維膠(jiao)的(de)影響,碳纖(xian)(xian)維膠(jiao)有(you)很多(duo)技術(shu)參數,主(zhu)要包括物(wu)理(li)性能、力(li)學性能、耐久性能等方面,這些性能的(de)優劣對碳纖(xian)(xian)維膠(jiao)的(de)固化時(shi)間也(ye)有(you)一定影響,那么碳纖(xian)(xian)維膠(jiao)多(duo)久干透呢?
碳纖維膠干(gan)透一(yi)般(ban)稱為“指干(gan)”,即摸上去手(shou)指手(shou)感干(gan)燥,此(ci)時(shi)(shi)(shi)再進行下(xia)一(yi)道工(gong)序(xu),這一(yi)時(shi)(shi)(shi)間并不固(gu)(gu)定(ding),根(gen)據現場氣溫(wen)(wen)(wen)(wen)(wen)不同(tong)有所(suo)不同(tong):通(tong)常碳纖維膠施工(gong)要求現場溫(wen)(wen)(wen)(wen)(wen)度(du)不低于5℃(溫(wen)(wen)(wen)(wen)(wen)度(du)在5°C下(xia)時(shi)(shi)(shi),請選用(yong)低溫(wen)(wen)(wen)(wen)(wen)固(gu)(gu)化(hua)型碳纖維系列膠),環境(jing)溫(wen)(wen)(wen)(wen)(wen)度(du)20-25℃時(shi)(shi)(shi)固(gu)(gu)化(hua)時(shi)(shi)(shi)間不少于3天(tian),平(ping)均(jun)溫(wen)(wen)(wen)(wen)(wen)度(du)為10℃時(shi)(shi)(shi)固(gu)(gu)化(hua)時(shi)(shi)(shi)間不少于7天(tian)。