纺织科学与工程学报2025，Vol.42Issue(1)：60-65,71,7.DOI:10.3969/j.issn.2096-5184.2025.01.011
聚丙烯腈纤维亲油改性及其对沥青增强作用研究
Study on Oleophilic Modification of Polyacrylonitrile Fiber and Its Enhancement Effects on Asphalt
摘要
Abstract
In order to improve the interface strength between polyacrylonitrile(PAN)fiber and asphalt,the PAN fiber was alkali-treated with diethylenetriamine(DETA),and then surface-modified with tetraethoxysilane(TEOS)and cetyltrimethoxysilane(HDTMS)to improve the hydrophobic and oleophilic properties of PAN fiber and then foster the interface properties of the fiber and asphalt.The effects of modifying temperature,time and the quality of HDTMS on the breaking strength and hydrophobicity of PAN fibers were studied.The surface mor-phology and chemical structures of PAN fibers before and after modification were characterized through scanning electron microscopy(SEM)and fourier transform infrared spectrometer(FT-IR).The changes of interface strength between fiber and asphalt were analyzed by fiber pull-out test before and after modification.The results showed that the modification process had little effect on the breaking strength of PAN fiber.The contact angle of modified PAN fiber was the largest when 75 mg HDTMS was added at 70℃for 1 h.Compared with the original fiber,the oil absorption rate of modified PAN fiber increased by 27.0%,and the pull strength between the fiber and the asphalt matrix increased by 12.6%.关键词
PAN纤维/亲油改性/沥青/界面/增强Key words
PAN fiber/oleophilic modification/asphalt/interface/enhancement分类
化学化工引用本文复制引用
顾戚惠,杨帆,王海楼,冯文宣,魏发云,张伟..聚丙烯腈纤维亲油改性及其对沥青增强作用研究[J].纺织科学与工程学报,2025,42(1):60-65,71,7.基金项目
江苏省高等学校基础科学(自然科学)重大项目(21KJA540001),江苏高校"青蓝工程"资助项目(苏教师函[2020]10号). （自然科学）
