用含硅芳炔树脂制备C/ C-SiC 复合材料
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华东理工大学ꎬ特种功能高分子材料及相关技术教育部重点实验室

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TB3

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Preparation of C/ C-SiC Composites by Using Silicon ̄ContainingAryacetylene Resin as a Precursor
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    摘要:

    以含硅芳炔树脂为先驱体ꎬ采用先驱体浸渍法(PIP) 制备了C/ C-SiC 复合材料ꎮ 首先通过炭化
    T300/ 含硅芳炔树脂(CFRP)制备了多孔C/ C-SiC 预制体ꎬ并探究了炭化工艺对所得多孔C/ C-SiC 预制体性能
    的影响ꎬ制得的多孔C/ C-SiC 预制体弯曲强度为98 MPaꎻ然后以含硅芳炔树脂溶液为浸渍剂ꎬ浸渍多孔C/ CSiC
    预制体ꎬ经过4 次浸渍、固化、炭化后ꎬ得到致密的C/ C-SiC 复合材料ꎬ其弯曲强度提升到203 MPaꎬ同时用
    XRD、SEM、TEM 等手段表征了复合材料的微观结构ꎬ所得C/ C-SiC 复合材料主要成分为β-SiC 及无定型碳ꎮ

    Abstract:

    C/ C-SiC composites are gaining increasing attention because of their excellent high temperature re ̄
    sistance.In this workꎬ C/ C-SiC composites were prepared from silicon ̄containing aryacetylene (PSA) resin and car ̄
    bon fibers by precursor infiltration and pyrolysis(PIP). A porous C/ C-SiC composite was prepared by pyrolysising a
    T300 fabric carbon fiber reinforced PSA resin composite( T300/ PSA composite) in argon and the pyrolysis process
    was studied. The flexural strength of the porous C/ C-SiC composite is 98 MPa. The process of PIP was investigated
    for the porous C/ C-SiC composite. After the porous C/ C-SiC prefabricate is infiltratedꎬ cured and pyrolysised for 4
    timesꎬ the flexural strength of the obtained dense C/ C-SiC composite reaches 202 MPa. Microstructure of C/ C-SiC
    composites is characterized by XRDꎬ SEMꎬ Raman spectra and TEMꎬ main component of C/ C-SiC composite are a ̄
    morphous carbon and β-SiC.

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鲁加荣 黄发荣 袁荞龙 杜 磊.用含硅芳炔树脂制备C/ C-SiC 复合材料[J].宇航材料工艺,2016,46(3).

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  • 在线发布日期: 2016-11-28
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