氰乙基三乙氧基硅烷改性玻璃纤维增强尼龙6研究  

Study on Cyanoethyltriethoxysilane Modified Glass Fiber Reinforced Nylon 6

作　　者：温彦鹏 王金龙 刘允飞 李超 WEN YAN-peng;WANG Jin-long;LIU Yun-fei;LI Chao(Jiangxi Hongbai New Materials Co.,Ltd.,Leping 333300,Jiangxi)

机构地区：[1]江西宏柏新材料股份有限公司,江西乐平333300

出　　处：《有机硅材料》2021年第5期29-32,共4页Silicone Material

摘　　要：通过浸渍工艺对玻璃纤维进行了表面改性,并制得玻璃纤维增强型尼龙6复合材料。研究了玻璃纤维浸渍液中氰乙基三乙氧基硅烷质量分数对复合材料力学性能的影响,并与γ-氨丙基三乙氧基硅烷(KH 550)和γ-(2,3-环氧丙氧)丙基三甲氧基硅烷(KH 560)处理的玻璃纤维制得的尼龙6复合材料性能进行了对比。结果表明,随着玻璃纤维浸渍液中氰乙基三乙氧基硅烷质量分数的增加,经处理的玻璃纤维的质量损失率(800℃,下同)和复合材料的力学性能先升后降。浸渍液中氰乙基三乙氧基硅烷较佳的质量分数为1.0%,此时经处理的玻璃纤维的质量损失率为3%,氰乙基三乙氧基硅烷在玻璃纤维上的接枝效率较佳;复合材料的简支梁缺口冲击强度、拉伸强度和弯曲模量均达到最大值,分别为4.4 MPa、78.9 MPa和3580 MPa,与未改性玻璃纤维制得的复合材料相比,分别提高了57.14%、17.01%和5.89%;从提高复合材料冲击强度的角度看,氰乙基三乙氧基硅烷与KH 550的效果相当,且均优于KH 560的效果。从提高复合材料拉伸强度和弯曲模量的角度看,氰乙基三乙氧基硅烷的效果比KH 550略好。The surface of the glass fiber has been modified by impregnation process, and the glass fiber reinforced nylon 6 composites has been prepared. The effect of the mass fraction of cyanoethyltriethoxysilane in the glass fiber impregnating solution on the mechanical properties of composites is studied, and it is compared with γ -aminopropyltriethoxysilane (KH 550 ) and γ - (2,3-epoxy propoxy )propyltrimethoxysilane ( KH 560 ). The results show that as the mass fraction of cyanoethyltriethoxysilane increases in the glass fiber impregnation solution, the mass loss rate of the treated glass fiber and the mechanical properties of the composites first increase and then decrease. The preferred cyanoethyltriethoxysilane has mass fraction of 1.0% in the impregnation solution, and the treated glass fiber has 3% the mass loss rate, the cyanoethyltriethoxysilane on the glass fiber has a better grafting rate. The notched impact strength, tensile strength and flexural modulus of the composites reach the maximum value, 4.4 MPa, 78.9 MPa and 3 580 MPa respectively. Compare to those prepared with unmodified glass fiber, its ratios increases by 57.14%, 17.01% and 5.89% respectively. On improving the impact strength of composites, cyanoethyltriethoxysilane has the same effect as KH 550, and both are better than KH 560. On improving the tensile strength and flexural modulus of the composites , cyanoethyltriethoxysilane is better than KH 550.

关 键 词：氰乙基三乙氧基硅烷 玻璃纤维 表面改性 尼龙6 力学性能 

分 类 号：TQ264.17[化学工程—有机化工]