【摘要】：研究了雙馬來(lái)酰亞胺樹脂定型劑含量對(duì)0°/90°雙軸向經(jīng)編織物(Non-crimp fabric,NCF)定型效果、液態(tài)成型工藝性、復(fù)合材料力學(xué)性能的影響。采用厚度回彈、C型回彈的方法表征定型效果;采用厚度壓縮與偏軸拉伸實(shí)驗(yàn)表征帶定型劑織物成型工藝性;并采用彎曲實(shí)驗(yàn)與層間剪切實(shí)驗(yàn)表征復(fù)合材料力學(xué)性能。實(shí)驗(yàn)結(jié)果表明定型劑的添加顯著提高了NCF織物的預(yù)定型效果;經(jīng)定型劑處理后NCF織物的面內(nèi)剪切模量有了較大提高,抗剪切變形能力增強(qiáng);添加定型劑對(duì)0°/90°雙軸向NCF織物復(fù)合材料的力學(xué)性能影響不大,但在改善其工藝性的同時(shí)并不會(huì)降低其復(fù)合材料的力學(xué)性能。
[Abstract]:The effects of bismaleimide resin content on the setting effect of 0 擄/ 90 擄biaxial warp knitted fabric (Non-crimp fabric,NCF), liquid molding technology and mechanical properties of composites were studied. Thickness springback and C-type springback were used to characterize the setting effect; thickness compression and eccentric tensile tests were used to characterize the formability of the fabric with styling agent; and the mechanical properties of the composites were characterized by bending test and interlaminar shear test. The results showed that the pre-setting effect of NCF fabric was significantly improved by adding the setting agent, the in-plane shear modulus of NCF fabric was greatly improved and the shear deformation resistance of NCF fabric was improved. The addition of setting agent has little effect on the mechanical properties of 0 擄/ 90 擄biaxial NCF fabric composites, but it can not reduce the mechanical properties of the composites while improving their processing properties.
【作者單位】： 北京航空航天大學(xué)材料科學(xué)與工程學(xué)院;中航復(fù)合材料有限責(zé)任公司中航工業(yè)復(fù)合材料技術(shù)中心;
【分類號(hào)】：TB332

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