桐油改性酚醛树脂的制备及其性能  

Preparation and characteristic of phenolic resin modified by tung oil

作　　者：袁新华[1] 何坤[1] 陈敏[2] 邵美秀[1] 胡杰[1] 

机构地区：[1]江苏大学材料科学与工程学院,江苏镇江212013 [2]江苏大学化学与化工学院,江苏镇江212013

出　　处：《江苏大学学报（自然科学版）》2007年第6期500-503,共4页Journal of Jiangsu University：Natural Science Edition

基　　金：浙江省重大科技攻关项目(2003C11018);江苏省"青蓝工程"优秀青年骨干教师资助项目

摘　　要：利用桐油改性酚醛树脂（PF）,制备高性能摩阻材料用树脂基体.综合热分析表明改性PF在100～320℃间失重7.30%,320～600℃间失重61.10%,普通PF分别失重15.94%和73.51%;普通PF热分解峰为400～425℃和540～600℃,桐油改性PF热分解峰为400～450℃和560～600℃.桐油改性PF热稳定性能得到很大提高,但耐热性能未有明显改善.FTIR分析表明桐油成为聚合物结构的一部分;力学测试结果表明桐油改性较大程度地改善了PF的韧性;掺杂质量分数40%的桐油改性PF和60%的硼改性PF的试样综合力学性能较好,更适合作为摩阻材料的树脂基体.To obtain resin matrix of friction material with high-quality, tung oil was used to modify phenolic resin. TG - DSC analysis shows that modified PF loses 7.30% weight between 100 ～ 320 ℃, and 61.10% weight between 320～600 ℃, while common PF loses 15.94% and 73.51% weight under the same conditions, respectively. The thermal decomposed peaks of common PF are 400 ～ 425 ℃ and 540 ～ 600 ℃, while those for modified PF are 400 ～ 450℃ and 560 ～ 600 ℃. These results show that the heat-stability of tung oil-modified PF is superior to those of pure phenolic resin, but the heat-resistance of modified PF is not improved considerablely. FTIR analysis shows that tung oil reacted with phenol and became a portion of PF structure. Mechanical test indicates that the tenacity of PF modified by tung oil is improved apparently. The resin matrix, which is mixed with 40% tung oil-modified PF and 60% boronmodified PF, has excellent machanical peformance and is reasonable to be used as the matrix of excellent friction material.

关 键 词：摩阻材料 酚醛树脂 桐油 改性 耐热性能 

分 类 号：TH117.2[机械工程—机械设计及理论] TQ323.1[化学工程—合成树脂塑料工业]