摘要
在无水三氟甲磺酸锌催化下通过2,6-双-(4-乙炔基苯氧基)-苯腈和二甲基二氯硅烷室温反应制备了侧氰基芳醚硅芳炔树脂(CNSA);采用1H-NMR、FTIR、DSC、TGA等分析测试技术表征了CNSA的结构与性能。结果显示,CNSA树脂具有好的溶解性和宽的加工窗口,可在较低温度(<200℃)下发生固化反应;树脂固化物具有好的热性能,在50~400℃之间无玻璃化转变,在N2中质量损失5%的温度Td5达512℃;T300碳纤维平纹布/CNSA(CF/CNSA)复合材料的室温弯曲强度达383.8 MPa,弯曲模量为62.9 GPa。
A silicon-containing arylacetylene resin with cyano groups(CNSA resin)was formed by reaction of 2,6-bis-(4-ethynylphenoxy)-phenylnitrile polymerized with dimethyldichlorosilane by the catalysis of anhydrous zinc trifluoromethane sulfonate at room temperature.The structure and properties of the CNSA resin were characterized by 1H-NMR,FTIR,DSC and TGA analysis techniques.The results show that the CNSA resin has good solubility and a wide processing window.The curing reactions of the CNSA resin take place at low temperature(<200℃).The cured CNSA resin has good heat resistance.There is no glass transition in the temperature range of 50−400℃.The decomposition temperature of 5%mass loss Td5 is 512℃in nitrogen.The flexural strength and the flexural modulus of T300 carbon fiber cloth/CNSA(CF/CNSA)composites are 383.8 MPa and 62.9 GPa at room temperature,respectively.
作者
马满平
戴妮娉
李传
刘晓天
袁荞龙
黄发荣
MA Manping;DAI Niping;LI Chuan;LIU Xiaotian;YUAN Qiaolong;HUANG Farong(Key Laboratory for Special Polymer Materials and Related Technology,School of Materials Science and Engineering,East China University of Science and Technology,Shanghai 200237,China)
出处
《复合材料学报》
EI
CAS
CSCD
北大核心
2020年第12期3035-3042,共8页
Acta Materiae Compositae Sinica
基金
中央高校基本科研业务费专项资金(50321042017001)。
关键词
氰基
含硅芳炔树脂
催化聚合
复合材料
固化反应
cyano group
silicon-containing arylacetylene resin
catalytic polymerization
composite
curing reaction
