以含氫硅(gui)(gui)(gui)(gui)(gui)(gui)氧(yang)烷為(wei)(wei)(wei)交(jiao)(jiao)聯劑(ji),室(shi)(shi)溫(wen)(wen)硫(liu)(liu)化(hua)(hua)(hua)(hua)硅(gui)(gui)(gui)(gui)(gui)(gui)橡(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)一般包(bao)括縮(suo)(suo)合(he)型和(he)(he)加(jia)成(cheng)(cheng)型兩大(da)類。加(jia)成(cheng)(cheng)型室(shi)(shi)溫(wen)(wen)膠(jiao)(jiao)(jiao)(jiao)(jiao)是以具(ju)(ju)(ju)有(you)(you)乙烯基(ji)(ji)(ji)的(de)(de)(de)線性(xing)(xing)聚硅(gui)(gui)(gui)(gui)(gui)(gui)氧(yang)烷為(wei)(wei)(wei)基(ji)(ji)(ji)礎(chu)膠(jiao)(jiao)(jiao)(jiao)(jiao)。催(cui)化(hua)(hua)(hua)(hua)劑(ji)存(cun)在(zai)下(xia)(xia)于室(shi)(shi)溫(wen)(wen)至中溫(wen)(wen)下(xia)(xia)發(fa)生交(jiao)(jiao)聯反應(ying)而成(cheng)(cheng)為(wei)(wei)(wei)彈性(xing)(xing)體(ti)。具(ju)(ju)(ju)有(you)(you)良好的(de)(de)(de)耐熱(re)(re)性(xing)(xing)、憎水(shui)(shui)性(xing)(xing)、電(dian)(dian)(dian)(dian)(dian)(dian)絕(jue)(jue)緣(yuan)性(xing)(xing),同時由于活性(xing)(xing)端基(ji)(ji)(ji)的(de)(de)(de)引入,使其具(ju)(ju)(ju)有(you)(you)優異的(de)(de)(de)物理機(ji)械(xie)性(xing)(xing)能(neng)(neng),尤其是抗(kang)張強(qiang)度、相對(dui)伸長(chang)和(he)(he)撕裂強(qiang)度上有(you)(you)了明顯的(de)(de)(de)提高。適用(yong)(yong)(yong)于多(duo)種(zhong)硫(liu)(liu)化(hua)(hua)(hua)(hua)方(fang)法,如輻射硫(liu)(liu)化(hua)(hua)(hua)(hua)、過氧(yang)化(hua)(hua)(hua)(hua)物硫(liu)(liu)化(hua)(hua)(hua)(hua)及加(jia)成(cheng)(cheng)型硫(liu)(liu)化(hua)(hua)(hua)(hua),廣(guang)泛(fan)用(yong)(yong)(yong)于耐熱(re)(re)、防潮(chao)(chao)、電(dian)(dian)(dian)(dian)(dian)(dian)絕(jue)(jue)緣(yuan)、高強(qiang)度硅(gui)(gui)(gui)(gui)(gui)(gui)橡(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)制(zhi)品(pin)(pin)等(deng)(deng)方(fang)面(mian)。縮(suo)(suo)合(he)型室(shi)(shi)溫(wen)(wen)硫(liu)(liu)化(hua)(hua)(hua)(hua)硅(gui)(gui)(gui)(gui)(gui)(gui)橡(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)是以硅(gui)(gui)(gui)(gui)(gui)(gui)羥(qian)基(ji)(ji)(ji)與(yu)其他活性(xing)(xing)物質之間的(de)(de)(de)縮(suo)(suo)合(he)反應(ying)為(wei)(wei)(wei)特征,于室(shi)(shi)溫(wen)(wen)下(xia)(xia)即可(ke)交(jiao)(jiao)聯成(cheng)(cheng)為(wei)(wei)(wei)彈性(xing)(xing)體(ti)的(de)(de)(de)硅(gui)(gui)(gui)(gui)(gui)(gui)橡(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao),產品(pin)(pin)分為(wei)(wei)(wei)單(dan)組份包(bao)裝和(he)(he)雙(shuang)組份包(bao)裝兩種(zhong)形式(shi)。單(dan)組分室(shi)(shi)溫(wen)(wen)硫(liu)(liu)化(hua)(hua)(hua)(hua)硅(gui)(gui)(gui)(gui)(gui)(gui)橡(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(簡稱RTV-1膠(jiao)(jiao)(jiao)(jiao)(jiao))縮(suo)(suo)合(he)型液體(ti)硅(gui)(gui)(gui)(gui)(gui)(gui)橡(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)中主要產品(pin)(pin)之一。通常由基(ji)(ji)(ji)礎(chu)聚合(he)物、交(jiao)(jiao)聯劑(ji)、催(cui)化(hua)(hua)(hua)(hua)劑(ji)、填料(liao)(liao)(liao)及添加(jia)劑(ji)等(deng)(deng)配制(zhi)而成(cheng)(cheng)。產品(pin)(pin)包(bao)裝在(zai)密(mi)封(feng)(feng)(feng)軟管(guan)中,使用(yong)(yong)(yong)時擠出(chu),接(jie)觸空(kong)氣后能(neng)(neng)自(zi)行硫(liu)(liu)化(hua)(hua)(hua)(hua)成(cheng)(cheng)彈性(xing)(xing)體(ti),使用(yong)(yong)(yong)極(ji)為(wei)(wei)(wei)方(fang)便。硫(liu)(liu)化(hua)(hua)(hua)(hua)膠(jiao)(jiao)(jiao)(jiao)(jiao)能(neng)(neng)在(zai)–60+200℃)溫(wen)(wen)度范圍臨時使用(yong)(yong)(yong),具(ju)(ju)(ju)有(you)(you)優良的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)氣絕(jue)(jue)緣(yuan)性(xing)(xing)能(neng)(neng)和(he)(he)化(hua)(hua)(hua)(hua)學穩定性(xing)(xing),能(neng)(neng)耐水(shui)(shui),耐臭氧(yang),耐氣候老化(hua)(hua)(hua)(hua),對(dui)多(duo)種(zhong)金(jin)屬和(he)(he)非金(jin)屬資(zi)料(liao)(liao)(liao)有(you)(you)良好的(de)(de)(de)粘(zhan)接(jie)性(xing)(xing)。主要用(yong)(yong)(yong)作(zuo)(zuo)(zuo)各種(zhong)電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)元器(qi)件及電(dian)(dian)(dian)(dian)(dian)(dian)氣設(she)備的(de)(de)(de)涂復,包(bao)封(feng)(feng)(feng)資(zi)料(liao)(liao)(liao)起絕(jue)(jue)緣(yuan),防潮(chao)(chao),防震作(zuo)(zuo)(zuo)用(yong)(yong)(yong);作(zuo)(zuo)(zuo)為(wei)(wei)(wei)半導體(ti)器(qi)件的(de)(de)(de)外(wai)表維護(hu)資(zi)料(liao)(liao)(liao);也可(ke)作(zuo)(zuo)(zuo)為(wei)(wei)(wei)密(mi)封(feng)(feng)(feng)填隙料(liao)(liao)(liao)及彈性(xing)(xing)粘(zhan)接(jie)劑(ji)等(deng)(deng)。雙(shuang)組分室(shi)(shi)溫(wen)(wen)硫(liu)(liu)化(hua)(hua)(hua)(hua)硅(gui)(gui)(gui)(gui)(gui)(gui)橡(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(簡稱RTV-2膠(jiao)(jiao)(jiao)(jiao)(jiao))使用(yong)(yong)(yong)上沒有(you)(you)RTV-1膠(jiao)(jiao)(jiao)(jiao)(jiao)方(fang)便,但其組分比例富于變化(hua)(hua)(hua)(hua),一個品(pin)(pin)種(zhong)可(ke)以得(de)到(dao)多(duo)種(zhong)規格性(xing)(xing)能(neng)(neng)的(de)(de)(de)硫(liu)(liu)化(hua)(hua)(hua)(hua)制(zhi)品(pin)(pin),而且(qie)還(huan)能(neng)(neng)深度硫(liu)(liu)化(hua)(hua)(hua)(hua),因(yin)而被廣(guang)泛(fan)用(yong)(yong)(yong)于電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)、汽車、機(ji)械(xie)、建筑(zhu)、紡織、化(hua)(hua)(hua)(hua)工(gong)(gong)、輕工(gong)(gong)、印刷等(deng)(deng)行業作(zuo)(zuo)(zuo)絕(jue)(jue)緣(yuan)、封(feng)(feng)(feng)裝、嵌(qian)縫、密(mi)封(feng)(feng)(feng)、防潮(chao)(chao)、抗(kang)震及制(zhi)作(zuo)(zuo)(zuo)輥筒(tong)的(de)(de)(de)資(zi)料(liao)(liao)(liao)。此外(wai),由于RTV-2具(ju)(ju)(ju)有(you)(you)優異的(de)(de)(de)脫模(mo)性(xing)(xing),因(yin)而作(zuo)(zuo)(zuo)為(wei)(wei)(wei)軟模(mo)資(zi)料(liao)(liao)(liao)大(da)量用(yong)(yong)(yong)于文物、工(gong)(gong)藝品(pin)(pin)、玩具(ju)(ju)(ju)、電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)、機(ji)械(xie)零件等(deng)(deng)的(de)(de)(de)復制(zhi)與(yu)制(zhi)造。有(you)(you)機(ji)硅(gui)(gui)(gui)(gui)(gui)(gui)密(mi)封(feng)(feng)(feng)膠(jiao)(jiao)(jiao)(jiao)(jiao)的(de)(de)(de)典型應(ying)用(yong)(yong)(yong)場(chang)所之一是玻(bo)璃幕(mu)墻(qiang)。將玻(bo)璃與(yu)鋁(lv)合(he)金(jin)框架(jia)用(yong)(yong)(yong)有(you)(you)機(ji)硅(gui)(gui)(gui)(gui)(gui)(gui)結構(gou)膠(jiao)(jiao)(jiao)(jiao)(jiao)粘(zhan)接(jie)作(zuo)(zuo)(zuo)為(wei)(wei)(wei)外(wai)墻(qiang)資(zi)料(liao)(liao)(liao),伸縮(suo)(suo)縫則用(yong)(yong)(yong)有(you)(you)機(ji)硅(gui)(gui)(gui)(gui)(gui)(gui)耐候膠(jiao)(jiao)(jiao)(jiao)(jiao)做防水(shui)(shui)密(mi)封(feng)(feng)(feng)。其他方(fang)面(mian)的(de)(de)(de)應(ying)用(yong)(yong)(yong)還(huan)包(bao)括用(yong)(yong)(yong)于鋁(lv)合(he)金(jin)門窗(chuang)(chuang)(chuang)和(he)(he)塑鋼(gang)(gang)門窗(chuang)(chuang)(chuang)的(de)(de)(de)周(zhou)邊密(mi)封(feng)(feng)(feng),玻(bo)璃裝置(zhi)及移動槽的(de)(de)(de)拼縫、鉚釘及固(gu)定螺絲的(de)(de)(de)密(mi)封(feng)(feng)(feng):廚房(fang)、浴室(shi)(shi)、洗手間的(de)(de)(de)衛生潔具(ju)(ju)(ju)及臺(tai)面(mian)、墻(qiang)體(ti)、家(jia)具(ju)(ju)(ju)之間的(de)(de)(de)防水(shui)(shui)密(mi)封(feng)(feng)(feng);水(shui)(shui)族(zu)館、天棚、金(jin)屬頂蓋、櫥窗(chuang)(chuang)(chuang)、柜臺(tai)、護(hu)墻(qiang)板、彩鋼(gang)(gang)板的(de)(de)(de)密(mi)封(feng)(feng)(feng);用(yong)(yong)(yong)于高等(deng)(deng)級公路(lu)板塊間的(de)(de)(de)防水(shui)(shui)嵌(qian)縫密(mi)封(feng)(feng)(feng)等(deng)(deng)。RTV除了建筑(zhu)用(yong)(yong)(yong)密(mi)封(feng)(feng)(feng)膠(jiao)(jiao)(jiao)(jiao)(jiao)以外(wai),還(huan)包(bao)括用(yong)(yong)(yong)于航空(kong)航天、核電(dian)(dian)(dian)(dian)(dian)(dian)站、電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)、機(ji)械(xie)、汽車等(deng)(deng)行業的(de)(de)(de)密(mi)封(feng)(feng)(feng)資(zi)料(liao)(liao)(liao),用(yong)(yong)(yong)于電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)元器(qi)件灌(guan)封(feng)(feng)(feng)的(de)(de)(de)有(you)(you)機(ji)硅(gui)(gui)(gui)(gui)(gui)(gui)灌(guan)封(feng)(feng)(feng)材料(liao)(liao)(liao),用(yong)(yong)(yong)作(zuo)(zuo)(zuo)軟模(mo)材料(liao)(liao)(liao)的(de)(de)(de)有(you)(you)機(ji)硅(gui)(gui)(gui)(gui)(gui)(gui)模(mo)具(ju)(ju)(ju)膠(jiao)(jiao)(jiao)(jiao)(jiao)等(deng)(deng)。這些品(pin)(pin)種(zhong)的(de)(de)(de)需求量相對(dui)較少,但在(zai)很多(duo)場(chang)所卻是不可(ke)少的(de)(de)(de),可(ke)分為(wei)(wei)(wei)高溫(wen)(wen)(加(jia)熱(re)(re))硫(liu)(liu)化(hua)(hua)(hua)(hua)型及和(he)(he)室(shi)(shi)溫(wen)(wen)硫(liu)(liu)化(hua)(hua)(hua)(hua)型兩大(da)類,硅(gui)(gui)(gui)(gui)(gui)(gui)橡(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)的(de)(de)(de)主要性(xing)(xing)能(neng)(neng)及應(ying)用(yong)(yong)(yong):硅(gui)(gui)(gui)(gui)(gui)(gui)橡(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)按其硫(liu)(liu)化(hua)(hua)(hua)(hua)溫(wen)(wen)度。高溫(wen)(wen)膠(jiao)(jiao)(jiao)(jiao)(jiao)主要用(yong)(yong)(yong)于制(zhi)造各種(zhong)硅(gui)(gui)(gui)(gui)(gui)(gui)橡(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)制(zhi)品(pin)(pin),而室(shi)(shi)溫(wen)(wen)膠(jiao)(jiao)(jiao)(jiao)(jiao)則主要是作(zuo)(zuo)(zuo)為(wei)(wei)(wei)粘(zhan)接(jie)劑(ji)、灌(guan)封(feng)(feng)(feng)資(zi)料(liao)(liao)(liao)或模(mo)具(ju)(ju)(ju)使用(yong)(yong)(yong)。
1熱硫化硅橡膠(HTV)
甲(jia)(jia)基(ji)乙(yi)烯基(ji)硅橡膠(jiao)(jiao)(jiao)(VMQHTV中zui主要的(de)(de)品(pin)種(zhong),熱硫(liu)化(hua)硅橡膠(jiao)(jiao)(jiao)(HTV有(you)機(ji)硅產品(pin)中zui重要的(de)(de)一類(lei)。俗稱(cheng)高溫膠(jiao)(jiao)(jiao)。甲(jia)(jia)基(ji)乙(yi)烯基(ji)硅橡膠(jiao)(jiao)(jiao)(生(sheng)(sheng)膠(jiao)(jiao)(jiao))無色、無臭、無毒、無機(ji)械雜質(zhi)的(de)(de)膠(jiao)(jiao)(jiao)狀物,生(sheng)(sheng)膠(jiao)(jiao)(jiao)按需(xu)要加入適(shi)當的(de)(de)補強(qiang)劑(ji)(ji)(ji)、結構控制劑(ji)(ji)(ji)、硫(liu)化(hua)劑(ji)(ji)(ji)等助劑(ji)(ji)(ji)一起混煉,然后升溫模(mo)(mo)壓成(cheng)型(xing)或擠(ji)出成(cheng)型(xing),再(zai)經二段硫(liu)化(hua)做成(cheng)各(ge)種(zhong)制品(pin)。其制品(pin)具有(you)優良的(de)(de)電絕緣性,抗(kang)(kang)(kang)電弧、電暈、電火花能力強(qiang),防水(shui)、防潮、抗(kang)(kang)(kang)沖擊(ji)力、抗(kang)(kang)(kang)震性好,具有(you)生(sheng)(sheng)理(li)惰性,透氣性等性能。主要用于(yu)航空、儀(yi)表、電子電器、航海、冶金、機(ji)械、汽車、醫療衛生(sheng)(sheng)等部門,可做各(ge)種(zhong)形狀的(de)(de)密(mi)封圈、墊片、管(guan)、電纜(lan),也(ye)可做人體器官、血管(guan)、透氣膜以及橡膠(jiao)(jiao)(jiao)模(mo)(mo)具,精密(mi)鑄造的(de)(de)脫模(mo)(mo)劑(ji)(ji)(ji)等。
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