采用GPC、流变仪等分析手段对不同分子量的固态PCS和液态PCS的黏度进行表征.分析了PCS分子量、软化点及黏度特性之间的关系.此外还用热重法对固态和液态PCS陶瓷产率进行表征.结果表明,LPCS在室温黏度较低,陶瓷产率较高(77％),而固态PCS熔体在＞200℃具有较低黏度(500 mPa·s),因此LPCS更适于用作PIP法制备陶瓷基复合材料浸渍前驱体.
参考文献
| [1] | Beyer S;Strobel F .Development and testing of C/SiC composites for liquid rocket propulsion applications AIAA99-2896[R].,1999. |
| [2] | 宋桂明,周玉,王玉金,雷廷权.固体火箭发动机喉衬材料[J].固体火箭技术,1998(02):51. |
| [3] | Odeshi AG;Mucha H;Wielage B .Manufacture and characterisation of a low cost carbon fibre reinforced C/SiC dual matrix composite[J].Carbon: An International Journal Sponsored by the American Carbon Society,2006(10):1994-2001. |
| [4] | Mentz J;Muller M;Kuntz M et al.New porous silicon carbide composite reinforced by intact high-strength carbon fibres[J].Journal of the European Ceramic Society,2006,26:1715-1722. |
| [5] | 范真祥,程海峰,张长瑞,唐耿平.不同裂解温度对制备SiCf/Si-O-C复合材料性能研究[J].国防科技大学学报,2004(05):13-17. |
| [6] | Yajima S .Special heat-resisting materials from organometallic polymers[J].American Ceramic Society Bulletin,1983,62(08):893-898. |
| [7] | Yajima S;Hayashi J;Omori M.Continuous silicon carbide fiber of tensile strength[J].Chemistry Letters,1975(09):931-935. |
| [8] | Yajima S;Okamura K;Hayashi J.Structure analysis incontinuous silicon carbide fiber of high tensile strength[J].Chemistry Letters,1975(12):1209-1210. |
| [9] | L.V.Interrante;K.Moraes;Q.Liu;N.Lu .Silicon-Based ceramics from polymer precursors[J].Pure and Applied Chemistry,2002(11):2111-2117. |
| [10] | Tian Hua Huang,Zhao Ju Yu,Xu Min He,Mu He Huang,Li Fu Chen,Hai Ping Xia,Li Tong Zhang.One-pot synthesis and characterization of a new, branched polycarbosilane bearing allyl groups[J].中国化学快报（英文版）,2007(06):754-757. |
| [11] | Houbu Li;Litong Zhang;Laifei Cheng .Effect of the polycarbosilane structure on its final ceramic yield[J].Journal of the European Ceramic Society,2008(4):887-891. |
| [12] | Li HB;Zhang LT;Cheng LF;Wang YG;Yu ZJ;Huang MH;Tu HB;Xia HP .Polymer-ceramic conversion of a highly branched liquid polycarbosilane for SiC-based ceramics[J].Journal of Materials Science,2008(8):2806-2811. |
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