巖棉板的外觀與玻璃棉板從外形上看是很相似的,許多人幾乎無法從圖片或者外觀上把他們區分出來。這里我們做一下解釋玻璃棉是一種熔融玻璃纖維形成棉材料,其化學成分是玻璃,顧名思義,玻璃棉屬于一種玻璃纖維,屬于無機纖維
目前,國內推廣比較穩定(ding)的(de)(de)A級材料(liao)是巖(yan)棉(mian)(mian)板等巖(yan)棉(mian)(mian)系(xi)列(lie)產(chan)品。其中,巖(yan)棉(mian)(mian)外墻(qiang)(qiang)保溫(wen)系(xi)統采用(yong)疏水性強(qiang)的(de)(de)巖(yan)棉(mian)(mian)板作為(wei)外墻(qiang)(qiang)保溫(wen)系(xi)統的(de)(de)保溫(wen)層。以天(tian)然(ran)巖(yan)石為(wei)主要原(yuan)料(liao)的(de)(de)疏水巖(yan)棉(mian)(mian)板是一種常見的(de)(de)礦物纖維。它是通(tong)過高溫(wen)熔(rong)化和離(li)心注射制成的(de)(de),然(ran)后與(yu)一定(ding)比例的(de)(de)粘合(he)劑(ji)和添加劑(ji)混合(he),最后用(yong)擺錘壓(ya)切而成。
巖棉板和玻(bo)璃(li)棉板的技術數據比較
1.生(sheng)產(chan)(chan)工藝(yi):巖(yan)棉(mian)板(ban)(ban)的生(sheng)產(chan)(chan)工藝(yi)采用國際先進的三(san)維交織(zhi)結構工藝(yi),但(dan)玻(bo)璃棉(mian)不(bu)(bu)能(neng)(neng)采用這(zhe)種結構工藝(yi)。一般(ban)來(lai)說(shuo),玻(bo)璃棉(mian)板(ban)(ban)的生(sheng)產(chan)(chan)只能(neng)(neng)采用平(ping)織(zhi)生(sheng)產(chan)(chan)工藝(yi)。因此,從這(zhe)個(ge)角度來(lai)看(kan),玻(bo)璃棉(mian)板(ban)(ban)的強度不(bu)(bu)能(neng)(neng)滿足(zu)墻體的要(yao)求(qiu)。
2.巖(yan)棉(mian)板和玻璃棉(mian)板的(de)(de)酸(suan)度(du)系(xi)(xi)(xi)數(shu):巖(yan)棉(mian)板的(de)(de)酸(suan)度(du)系(xi)(xi)(xi)數(shu)≥1.6.玻璃棉(mian)的(de)(de)酸(suan)度(du)系(xi)(xi)(xi)數(shu)≤1.6.對于建筑保(bao)溫材(cai)料,酸(suan)度(du)系(xi)(xi)(xi)數(shu)越高(gao),保(bao)溫板的(de)(de)強度(du)及(ji)其耐(nai)高(gao)溫性和耐(nai)久性就越明顯。
3.尺(chi)(chi)寸穩(wen)(wen)(wen)(wen)(wen)定性:巖(yan)棉板(ban)的尺(chi)(chi)寸穩(wen)(wen)(wen)(wen)(wen)定性相(xiang)對穩(wen)(wen)(wen)(wen)(wen)定,其穩(wen)(wen)(wen)(wen)(wen)定性≤玻璃(li)棉尺(chi)(chi)寸穩(wen)(wen)(wen)(wen)(wen)定性為1%≥8%。這種建筑保(bao)(bao)溫材料的尺(chi)(chi)寸穩(wen)(wen)(wen)(wen)(wen)定性對絕緣系統(tong)有重(zhong)要影(ying)響。同時(shi),如(ru)果建筑保(bao)(bao)溫材料的尺(chi)(chi)寸穩(wen)(wen)(wen)(wen)(wen)定性差,很(hen)容易導(dao)致保(bao)(bao)溫板(ban)的膨(peng)脹或收縮,損壞裝飾層(ceng),影(ying)響建筑保(bao)(bao)溫系統(tong)。
4.施工:巖棉(mian)(mian)板(ban)一(yi)般采用(yong)粘(zhan)釘法。原因是它(ta)能(neng)(neng)保(bao)證(zheng)巖棉(mian)(mian)板(ban)的(de)安(an)全(quan)性(xing)。玻(bo)璃(li)棉(mian)(mian)板(ban)呢?由于玻(bo)璃(li)棉(mian)(mian)板(ban)的(de)特點,施工時玻(bo)璃(li)棉(mian)(mian)板(ban)不能(neng)(neng)抹灰,只能(neng)(neng)錨固固定(ding)。玻(bo)璃(li)棉(mian)(mian)板(ban)基本(ben)沒有抗壓(ya)強(qiang)度(du)(du),玻(bo)璃(li)棉(mian)(mian)板(ban)本(ben)身比(bi)(bi)較軟,錨固時操作困難。與(yu)巖棉(mian)(mian)板(ban)相(xiang)比(bi)(bi),玻(bo)璃(li)棉(mian)(mian)板(ban)的(de)安(an)全(quan)性(xing)也(ye)相(xiang)對降低。而且(qie)巖棉(mian)(mian)板(ban)施工方便,能(neng)(neng)有效(xiao)控制(zhi)平(ping)整度(du)(du),玻(bo)璃(li)棉(mian)(mian)不能(neng)(neng)保(bao)證(zheng)平(ping)整度(du)(du)。
5.工(gong)作(zuo)(zuo)(zuo)溫度:巖棉(mian)板工(gong)作(zuo)(zuo)(zuo)溫度:≥650℃;玻璃棉(mian)的工(gong)作(zuo)(zuo)(zuo)溫度≥250℃。盡(jin)管A1.防火(huo)材料相同,但(dan)兩者(zhe)之間的工(gong)作(zuo)(zuo)(zuo)溫度差(cha)異非常明(ming)顯。
6.吸水(shui)率(lv):防水(shui)巖棉(mian)(mian)板(ban)(ban)的吸水(shui)率(lv)≥99%,吸水(shui)率(lv)≤1kg/m3(浸水(shui)24h玻璃棉(mian)(mian)吸水(shui)率(lv))≥3kg/m3.同時,玻璃棉(mian)(mian)板(ban)(ban)的尺寸(cun)穩(wen)定性比巖棉(mian)(mian)板(ban)(ban)的尺寸(cun)穩(wen)定性差(cha)。玻璃棉(mian)(mian)板(ban)(ban)一旦吸水(shui),影響保溫系(xi)統。