新型C／C复合材料基体前驱体——酚醛型氰酸酯树脂的研究  

New matrix precursor for carbon-carbon composites—PT resin

作　　者：刘锦霞[1] 陈淳[1] 孙超明[1] 

机构地区：[1]北京玻钢院复合材料有限公司,北京102101

出　　处：《功能材料》2007年第A09期3614-3616,共3页Journal of Functional Materials

摘　　要：以苯酚、甲醛为原料，草酸为催化剂自制改性酚醛本体；所得酚醛本体与溴化氰，在三乙胺催化下反应得到酚醛型氰酸酯树脂．采用红外光谱仪、热重分析仪、流变仪等分析了酚醛型氰酸酯树脂的纯度、残碳率及粘度特性。以合成的酚醛型氰酸酯树脂为基体前驱体，采用RTM工艺浸渍增密了碳纤维复合材料坯体，制备出了酚醛型氰酸酯基二维C／C复合材料制品，并对C／C复合材料的力学性能进行了评价．试验结果表明酚醛型氰酸酯树脂是一种极具前景的新型C／C复合材料基体前驱体．Novolac was synthesized with phenol, formaldehyde, oxalic acid; and PT was prepared with novolac, cyanogens bromide, triethylamine. Then the product have been characterized in purity, viscosity and char yield with IR, TGA. The RTM was used for both manufacturing of the resin matrix composite part as well as impregnation of the carbonized parts. And all the result indicated that PT resin is a new kind of promising matrix precursor of carbon-carbon composites.

关 键 词：酚醛型氰酸酯树脂 C/C复合材料 前驱体 残碳率 RTM 

分 类 号：TQ323.1[化学工程—合成树脂塑料工业] TB332[一般工业技术—材料科学与工程]