目前，世界硅橡膠年消耗量約為(wei)22萬t，其中(zhong)導(dao)電(dian)(dian)(dian)(dian)(dian)產品雖(sui)然(ran)所(suo)占份額(e)不大，但(dan)發展比較迅速。近年來(lai)，導(dao)電(dian)(dian)(dian)(dian)(dian)硅橡(xiang)膠(jiao)在(zai)高電(dian)(dian)(dian)(dian)(dian)壓技術(shu)、電(dian)(dian)(dian)(dian)(dian)子技術(shu)及(ji)醫療(liao)設備等領域的應(ying)用(yong)不斷(duan)增加。導(dao)電(dian)(dian)(dian)(dian)(dian)硅橡(xiang)膠(jiao)是(shi)將(jiang)導(dao)電(dian)(dian)(dian)(dian)(dian)性(xing)(xing)(xing)物質(zhi)(zhi)分散在(zai)絕緣的有(you)機硅聚合物中(zhong)，而使其具有(you)導(dao)電(dian)(dian)(dian)(dian)(dian)性(xing)(xing)(xing)能。常用(yong)的導(dao)電(dian)(dian)(dian)(dian)(dian)性(xing)(xing)(xing)物質(zhi)(zhi)有(you)金、銀(yin)、銅(tong)(tong)，鈀、鉬、鈷、石墨(mo)、炭黑、碳(tan)纖維、鍍銀(yin)鋁、鍍銀(yin)銅(tong)(tong)、鍍銀(yin)碳(tan)纖維、鍍銀(yin)玻(bo)璃球和玻(bo)璃纖維等。目前應(ying)用(yong)最(zui)廣泛的導(dao)電(dian)(dian)(dian)(dian)(dian)填料是(shi)銀(yin)粉和導(dao)電(dian)(dian)(dian)(dian)(dian)炭黑。銀(yin)粉具有(you)優異的導(dao)電(dian)(dian)(dian)(dian)(dian)性(xing)(xing)(xing)能和導(dao)電(dian)(dian)(dian)(dian)(dian)穩(wen)定性(xing)(xing)(xing)，但(dan)價格昂貴(gui)。

導(dao)(dao)(dao)(dao)電(dian)(dian)炭(tan)黑雖然導(dao)(dao)(dao)(dao)電(dian)(dian)性(xing)(xing)能遜于銀粉(fen)，但其價格較低(di)，且與聚合(he)(he)物(wu)(wu)基(ji)體的(de)結(jie)合(he)(he)能力強。導(dao)(dao)(dao)(dao)電(dian)(dian)物(wu)(wu)質的(de)品種和(he)用(yong)量及加工方(fang)法等對硅橡(xiang)膠(jiao)物(wu)(wu)理性(xing)(xing)能和(he)導(dao)(dao)(dao)(dao)電(dian)(dian)性(xing)(xing)能均(jun)有(you)影響。在制(zhi)備通用(yong)型導(dao)(dao)(dao)(dao)電(dian)(dian)橡(xiang)膠(jiao)方(fang)面，由(you)于炭(tan)黑價格便宜(yi)、對橡(xiang)膠(jiao)有(you)補(bu)強作用(yong)并且可(ke)提高(gao)其耐(nai)候性(xing)(xing)和(he)耐(nai)磨性(xing)(xing)，因此填充炭(tan)黑的(de)導(dao)(dao)(dao)(dao)電(dian)(dian)硅橡(xiang)膠(jiao)綜合(he)(he)性(xing)(xing)能最好，應用(yong)最為(wei)廣(guang)泛。

導(dao)電(dian)橡(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)是一(yi)種(zhong)復合(he)型導(dao)電(dian)高分(fen)子(zi)材料(liao)(liao)，具有(you)柔韌性(xing)好、易加工(gong)以及(ji)導(dao)電(dian)、導(dao)熱等(deng)性(xing)能，在抗靜(jing)電(dian)、電(dian)磁屏蔽／吸(xi)波、導(dao)電(dian)、傳感等(deng)領域得到(dao)廣(guang)泛應用。應用于導(dao)電(dian)橡(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)的基(ji)體材料(liao)(liao)一(yi)般有(you)硅橡(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)、氟硅橡(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)、氯丁(ding)膠(jiao)(jiao)(jiao)(jiao)(jiao)、乙丙(bing)橡(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)等(deng)。與天然橡(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)及(ji)其(qi)它合(he)成有(you)機橡(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)相比，硅橡(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)具有(you)很高的熱穩定性(xing)、較(jiao)好的脫模性(xing)，并具有(you)優異的耐(nai)臭氧老(lao)(lao)化、氧老(lao)(lao)化、光老(lao)(lao)化和天候老(lao)(lao)化性(xing)能，成為應用最廣(guang)泛的導(dao)電(dian)橡(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)材料(liao)(liao)。

硅膠(jiao)密(mi)封條(tiao)(tiao)(tiao)是利(li)用某些材(cai)料的特性(xing)通過加工使(shi)其(qi)內部出現氣孔的一種密(mi)封條(tiao)(tiao)(tiao)。分(fen)為(wei)三元(yuan)乙丙（EPDM）發(fa)(fa)泡密(mi)封條(tiao)(tiao)(tiao)、硅膠(jiao)發(fa)(fa)泡密(mi)封條(tiao)(tiao)(tiao)、PU發(fa)(fa)泡密(mi)封條(tiao)(tiao)(tiao)。發(fa)(fa)泡密(mi)封條(tiao)(tiao)(tiao)采用微波(bo)硫化工藝一次成(cheng)型，表面(mian)光潔美觀、無接痕。具有(you)良好(hao)的彈性(xing)和(he)抗壓縮變形(xing)性(xing)，耐老化性(xing)能優(you)異。阻燃性(xing)能優(you)異，低(di)煙(yan)低(di)毒(du)；產品性(xing)能穩定，尺寸(cun)精度高。 

硅膠發(fa)泡密封條(tiao)可在200度下連(lian)續使用10，000小時(shi)；在350度下亦可使用一段(duan)時(shi)間。4、耐(nai)候(hou)性(xing)：普通橡(xiang)膠在電(dian)暈(yun)放(fang)電(dian)產生的臭(chou)氧作用下迅速降解(jie)，而硅橡(xiang)膠則不受臭(chou)氧影響(xiang)。且長時(shi)間在紫(zi)外線和其(qi)他氣(qi)候(hou)條(tiao)件(jian)下，其(qi)物理性(xing)能僅有微小變化。5、抗老化，耐(nai)腐蝕，硅膠本(ben)身(shen)具有很(hen)強(qiang)的惰性(xing)。