申請號: 201710643529.9

申請日: 2017.07.31

國家/省市:中國西安(87)

公開號: 107324339A

公開日: 2017.11.07

主分(fen)類號:C01B 32/977(2017.01)

分類號: C01B 32/977(2017.01); B82Y 40/00(2011.01)

申請人: 西安天運新材料科技有限公司

發明人: 馬洋洋

代理人: 徐文權

代理機(ji)構(gou):西安通大專利代理有限責任公司(61200)

申請人地址:陜西省西安市航天基地神舟四路239號航創國際廣場2棟(dong)103室

摘要： 本發明涉及一種碳化硅氣凝膠及其(qi)制(zhi)(zhi)備方(fang)法(fa)，先將(jiang)碳(tan)(tan)化(hua)(hua)(hua)硅(gui)(gui)前(qian)(qian)驅(qu)(qu)(qu)體(ti)(ti)溶(rong)于有(you)機溶(rong)劑(ji)中，配制(zhi)(zhi)成碳(tan)(tan)化(hua)(hua)(hua)硅(gui)(gui)前(qian)(qian)驅(qu)(qu)(qu)體(ti)(ti)溶(rong)液；將(jiang)碳(tan)(tan)化(hua)(hua)(hua)硅(gui)(gui)前(qian)(qian)驅(qu)(qu)(qu)體(ti)(ti)溶(rong)液在(zai)150～200℃無(wu)氧條件下(xia)進行硅(gui)(gui)氫加(jia)成反應，得(de)(de)到(dao)碳(tan)(tan)化(hua)(hua)(hua)硅(gui)(gui)前(qian)(qian)驅(qu)(qu)(qu)體(ti)(ti)凝(ning)膠(jiao)(jiao)；將(jiang)碳(tan)(tan)化(hua)(hua)(hua)硅(gui)(gui)前(qian)(qian)驅(qu)(qu)(qu)體(ti)(ti)凝(ning)膠(jiao)(jiao)干燥，得(de)(de)到(dao)碳(tan)(tan)化(hua)(hua)(hua)硅(gui)(gui)前(qian)(qian)驅(qu)(qu)(qu)體(ti)(ti)氣(qi)凝(ning)膠(jiao)(jiao)；將(jiang)碳(tan)(tan)化(hua)(hua)(hua)硅(gui)(gui)前(qian)(qian)驅(qu)(qu)(qu)體(ti)(ti)氣(qi)凝(ning)膠(jiao)(jiao)在(zai)800～1600℃無(wu)氧條件下(xia)熱處理(li)，得(de)(de)到(dao)碳(tan)(tan)化(hua)(hua)(hua)硅(gui)(gui)氣(qi)凝(ning)膠(jiao)(jiao)。本(ben)發明中以含(han)有(you)Si?H鍵和C＝C雙(shuang)鍵的(de)碳(tan)(tan)化(hua)(hua)(hua)硅(gui)(gui)前(qian)(qian)驅(qu)(qu)(qu)體(ti)(ti)為碳(tan)(tan)化(hua)(hua)(hua)硅(gui)(gui)前(qian)(qian)驅(qu)(qu)(qu)體(ti)(ti)，其(qi)本(ben)身可(ke)以在(zai)一定溫度(du)下(xia)固化(hua)(hua)(hua)，通(tong)過(guo)前(qian)(qian)驅(qu)(qu)(qu)體(ti)(ti)轉化(hua)(hua)(hua)制(zhi)(zhi)備陶瓷(ci)和氣(qi)凝(ning)膠(jiao)(jiao)制(zhi)(zhi)備法(fa)制(zhi)(zhi)備了(le)碳(tan)(tan)化(hua)(hua)(hua)硅(gui)(gui)氣(qi)凝(ning)膠(jiao)(jiao)，制(zhi)(zhi)備方(fang)法(fa)簡單，C/Si比接近1:1。本(ben)發明中使用的(de)碳(tan)(tan)化(hua)(hua)(hua)硅(gui)(gui)前(qian)(qian)驅(qu)(qu)(qu)體(ti)(ti)含(han)Si?H與C＝C鍵且比例可(ke)調，無(wu)需另外添加(jia)含(han)乙(yi)烯(xi)基物質，降低(di)了(le)生產成本(ben)。

主權利要求

1.一種(zhong)碳(tan)化(hua)(hua)硅(gui)(gui)氣(qi)凝(ning)(ning)膠(jiao)(jiao)(jiao)(jiao)的制備(bei)方法，其特征在于：包括以下(xia)步驟：(1)將(jiang)碳(tan)化(hua)(hua)硅(gui)(gui)前驅(qu)體(ti)溶(rong)于有機溶(rong)劑中，配制成碳(tan)化(hua)(hua)硅(gui)(gui)前驅(qu)體(ti)溶(rong)液；(2)將(jiang)碳(tan)化(hua)(hua)硅(gui)(gui)前驅(qu)體(ti)溶(rong)液在150～200℃無(wu)氧(yang)(yang)條件(jian)下(xia)進(jin)行(xing)硅(gui)(gui)氫加成反應，得(de)到碳(tan)化(hua)(hua)硅(gui)(gui)前驅(qu)體(ti)凝(ning)(ning)膠(jiao)(jiao)(jiao)(jiao)；(3)將(jiang)碳(tan)化(hua)(hua)硅(gui)(gui)前驅(qu)體(ti)凝(ning)(ning)膠(jiao)(jiao)(jiao)(jiao)干(gan)燥，得(de)到碳(tan)化(hua)(hua)硅(gui)(gui)前驅(qu)體(ti)氣(qi)凝(ning)(ning)膠(jiao)(jiao)(jiao)(jiao)；(4)將(jiang)碳(tan)化(hua)(hua)硅(gui)(gui)前驅(qu)體(ti)氣(qi)凝(ning)(ning)膠(jiao)(jiao)(jiao)(jiao)在800～1600℃無(wu)氧(yang)(yang)條件(jian)下(xia)熱處理(li)，得(de)到碳(tan)化(hua)(hua)硅(gui)(gui)氣(qi)凝(ning)(ning)膠(jiao)(jiao)(jiao)(jiao)。