摘要
通过多步接枝工艺,对掺杂Ti O2粒子(M系列)表面改性,并制备了M系列粒子/氰酸酯树脂(CE)基复合材料。采用示差扫描量热分析,扫描电镜和透射电镜等研究了M系列粒子对复合材料的耐热性、摩擦力学性能和介电性能的影响。结果表明,表面有机化的纳米Ti O2粒子的添加质量分数为3%时,复合材料的热失重温度增幅为60℃,质量保持率达到70.7%;摩擦系数降低了约37.5%,摩擦损耗降低了62%;介电常数增大66.2%,介电损耗减小50%。
The surface of doped Ti O2particles（M series） were modified by multi-step grafting process and the M Series particle /cyanate ester resin（CE）matrix composites were prepared. The effect of M series particle on the heat resistance,frictional properties and dielectric properties of the composite were investigated by differential scanning calorimetry analysis, scanning electron microscopy and transmission electron microscopy analysis. The results showed that when the the mass fraction of nano-Ti O2 particles with organic surface was 3%,the weight loss temperature of the composite was increased by 60 ℃ and the mass retention rate reached was up to 70.7%. The friction coefficient was decreased by about 37.5% and the friction loss was decreased by 62%. The dielectric constant was increased by 66.2% and the dielectric loss was decreased by 50%.
出处
《热固性树脂》
CAS
CSCD
北大核心
2016年第2期9-16,共8页
Thermosetting Resin
基金
陕西省科技厅工业公关课题(2013K09-31)
陕西省教育厅专项基金(15JK1266)
西部军民融合技术产业发展研究院项目(15JMR17)资助
关键词
钕掺杂二氧化钛
复合材料
耐热性
摩擦系数
摩擦损耗
介电常数
介电损耗
微观形貌
Nd-dope anatase nano-titanium dioxide
composite
heat resistance
friction coefficient
friction loss
dielectric constant
dielectric loss
morphology
