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(shi)(shi)工使用的膠(jiao)水,具(ju)有粘度低、強(qiang)度高、浸潤(run)性(xing)(xing)和滲(shen)透性(xing)(xing)好,觸(chu)變性(xing)(xing)強(qiang)、施(shi)(shi)工性(xing)(xing)能(neng)(neng)(neng)好等特點,固(gu)化后的膠(jiao)層物(wu)理機械性(xing)(xing)能(neng)(neng)(neng)和強(qiang)韌(ren)性(xing)(xing)能(neng)(neng)(neng)優(you)異,且不含(han)揮(hui)發(fa)性(xing)(xing)溶劑、安全無毒、施(shi)(shi)工方便,廣泛應用于加固(gu)構(gou)件表(biao)面纖維類片材(cai)的粘貼。
二、碳纖維膠的作用是什么
碳纖(xian)(xian)維(wei)膠有(you)三種(zhong),分別是碳纖(xian)(xian)維(wei)底膠、碳纖(xian)(xian)維(wei)找平膠和碳纖(xian)(xian)維(wei)浸漬膠三種(zhong),三種(zhong)碳纖(xian)(xian)維(wei)膠的作用各有(you)不(bu)同:
1、碳纖維底膠主要用于加固構件(jian)表面底層涂(tu)抹修補。
2、碳(tan)纖維找平膠用于加固(gu)構件表面缺(que)陷的修(xiu)補、找平。
3、碳纖(xian)維(wei)浸漬(zi)膠用于建筑物加固(gu)改造過程中構件表面如混凝土、磚(zhuan)、巖石等(deng)基(ji)材(cai)(cai)與碳纖(xian)維(wei)、玻璃纖(xian)維(wei)及其它纖(xian)維(wei)類片材(cai)(cai)的(de)浸漬(zi)粘貼。
三、碳纖維膠多久才能干透
碳纖維加固的效果很(hen)大程度上會受(shou)到碳(tan)纖維(wei)(wei)膠(jiao)(jiao)(jiao)的影響(xiang),碳(tan)纖維(wei)(wei)膠(jiao)(jiao)(jiao)有很(hen)多(duo)技術(shu)參數,主要包括物理性(xing)能(neng)、力學性(xing)能(neng)、耐久性(xing)能(neng)等方(fang)面,這些性(xing)能(neng)的優劣對碳(tan)纖維(wei)(wei)膠(jiao)(jiao)(jiao)的固化時(shi)間也有一定影響(xiang),那么碳(tan)纖維(wei)(wei)膠(jiao)(jiao)(jiao)多(duo)久干透呢?
碳纖維膠干(gan)透一(yi)(yi)般(ban)稱為“指干(gan)”,即摸上去手指手感干(gan)燥,此時(shi)(shi)(shi)再進行下(xia)一(yi)(yi)道(dao)工(gong)序,這一(yi)(yi)時(shi)(shi)(shi)間并不固(gu)(gu)(gu)定,根據現場氣溫不同有所不同:通常(chang)碳纖維膠施(shi)工(gong)要求現場溫度(du)(du)(du)(du)不低于(yu)5℃(溫度(du)(du)(du)(du)在5°C下(xia)時(shi)(shi)(shi),請(qing)選用低溫固(gu)(gu)(gu)化(hua)型(xing)碳纖維系列膠),環境溫度(du)(du)(du)(du)20-25℃時(shi)(shi)(shi)固(gu)(gu)(gu)化(hua)時(shi)(shi)(shi)間不少(shao)于(yu)3天,平均溫度(du)(du)(du)(du)為10℃時(shi)(shi)(shi)固(gu)(gu)(gu)化(hua)時(shi)(shi)(shi)間不少(shao)于(yu)7天。