凱倫建材防水卷材系列:防水卷材有哪些性能?
1.耐(nai)水(shui)(shui)(shui)(shui)性(xing)。耐(nai)水(shui)(shui)(shui)(shui)性(xing)是指在(zai)水(shui)(shui)(shui)(shui)的作用下(xia)和被水(shui)(shui)(shui)(shui)浸潤后其性(xing)能基本(ben)不變(bian),在(zai)壓力(li)水(shui)(shui)(shui)(shui)作用下(xia)具有不透水(shui)(shui)(shui)(shui)性(xing),常用不透水(shui)(shui)(shui)(shui)性(xing)、吸水(shui)(shui)(shui)(shui)性(xing)等指標(biao)表(biao)示;
2.溫(wen)(wen)度穩定性(xing)(xing)。溫(wen)(wen)度穩定性(xing)(xing)指(zhi)在(zai)(zai)高(gao)溫(wen)(wen)下不(bu)流(liu)淌、不(bu)起(qi)泡、不(bu)滑動,低溫(wen)(wen)下不(bu)脆裂的性(xing)(xing)能(neng),即在(zai)(zai)一定溫(wen)(wen)度變化(hua)下保持原(yuan)有(you)性(xing)(xing)能(neng)的能(neng)力。常(chang)用耐熱度、耐熱性(xing)(xing)等(deng)指(zhi)標表示;
3.機械強度、延(yan)伸(shen)性和抗斷裂(lie)性。它指防水卷材承受一(yi)定(ding)(ding)荷載、應力或在一(yi)定(ding)(ding)變(bian)形的條件下不斷裂(lie)的性能。常用拉力、拉伸(shen)強度和斷裂(lie)伸(shen)長率等指標表示;
4.柔韌性(xing)。柔韌性(xing)指在(zai)低(di)(di)溫條件下保持(chi)柔韌性(xing)的性(xing)能(neng)。它對保證易(yi)于施工、不(bu)脆裂十分重要。常用柔度(du)、低(di)(di)溫彎折性(xing)等(deng)指標表示;
5.大(da)氣(qi)穩定性(xing)。大(da)氣(qi)穩定性(xing)指在陽光(guang)、熱、臭(chou)氧(yang)及其他化學侵(qin)蝕介質等因素(su)的長期綜合作用下抵抗侵(qin)蝕的能力。常(chang)用耐老化性(xing)、熱老化保持率的等指標表示。