复合材料科学与工程Issue(5)：12-18,7.DOI:10.19936/j.cnki.2096-8000.20240528.002
丙烯酸共聚改性液态丙烯酸酯树脂及其复合材料力学性能研究
Study of acrylic copolymer modified liquid acrylate resin and its composite mechanical properties
摘要
Abstract
In order to solve the problem of insufficient tensile strength of acrylate resin and its weak bonding with fiber interface.In this paper,liquid acrylate low polymerization resin(AOLM)was modified by copolymeriza-tion of acrylic acid(AAc)to significantly improve the overall mechanical properties of the resin matrix and its glass fiber(GF)reinforced composites after curing by increasing the intermolecular force of polyacrylate resin matrix(PAOLM).The results show that the introduced AAc causes the appearance of vibrational absorption peaks for in-tramolecular hydrogen bonding(3 545 cm-1)and intermolecular hydrogen bonding(3 294 cm-1)in the infrared spectrogram of PAOLM.Compared with the unmodified PAOLM,the tensile strength and modulus of resin P(AOLM-AAc)are improved by 20.86%and 32.65%,respectively.The bending strength and modulus are increased by 18.14%and 25.73%,respectively.The impact toughness is improved by 24.03%,and the glass transition temper-ature is increased by 10.03%after copolymerization modification.Compared with the composite with AOLM(GF/PAOLM),the tensile strength and flexural strength of the composite with AAc-modified AOLM[GF/P(AOLM-AAc)]are increased by 11.62%and 37.18%,respectively.关键词
原位聚合/共聚改性/热塑性复合材料/力学性能Key words
in-situ polymerization/copolymerization modification/thermoplastic composites/mechanical properties分类
通用工业技术引用本文复制引用
陈述慧,梅启林,丁国民,汪瑞,蔡永祺,姜端洋..丙烯酸共聚改性液态丙烯酸酯树脂及其复合材料力学性能研究[J].复合材料科学与工程,2024,(5):12-18,7.基金项目
国家自然科学基金项目(52003120) （52003120）
中央高校基本科研业务费专项资金(2022IVA004) （2022IVA004）
江苏省"双创计划"项目 （）
湖北省自然科学基金一般面上项目(2022CFB384) （2022CFB384）
