摘要
实验制备了一种新型的热塑性环氧树脂基复合材料,该热塑性聚合物基复合材料是由环氧树脂、双马来酰亚胺树脂、一元胺的混合物浸渍增强材料并原位聚合制得的。通过将聚合好的树脂浸入有机溶剂中,发现树脂溶解于溶剂中,表明该树脂基体没有交联。利用示差扫描量热法(DSC)、红外光谱法(FTIR)研究了树脂体系的聚合制度,利用DSC和同步热分析仪研究了该体系的耐热性。采用电子万能材料实验机研究了复合材料的力学性能。结果表明,最佳的聚合制度为70℃/1 h+120℃/2 h+150℃/5 h+170℃/2 h。双马来酰亚胺树脂的加入能有效改善体系的玻璃化转变温度(Tg)。当其含量达到10%时,Tg达到90℃,与不添加双马来酰亚胺的树脂体系相比,玻璃化转变温度提高了36%。
In this paper, a novel thermoplastic epoxy composite was prepared by impregnating a reinforcing material with a mixture of epoxy resin, bismaleimide resin and monoamine. By immersing the cured resin in an organic solvent, it was found that the resin was dissolved in the solvent, indicating that the resin matrix was not crosslinked. The curing system of the resin system was studied by differential scanning calorimetry (DSC) and infrared spectroscopy (FTIR). The heat resistance of the system was studied by DSC and synchronous thermal analyzer. The mechanical properties of the composites were studied by using an electronic universal material testing machine. The results showed that the best curing system was 70 ℃/1 h+120 ℃/2 h+150 ℃/5 h+170 ℃/2 h. The addition of bismaleimide resin could effectively improve the glass transition temperature of the system. When the content reached 10%, the T g could reach 90 ℃ and the glass transition temperature was increased by 36% compared to the system in which no bismaleimide resin was added.
作者
邹俊杰
王钧
陈晞
ZOU Jun-jie;WANG Jun;CHEN Xi(School of Materials Science and Engineering,Wuhan university of Technology, Wuhan 430070, China)
出处
《玻璃钢／复合材料》
CAS
北大核心
2019年第4期25-30,共6页
Fiber Reinforced Plastics/Composites
基金
国家自然科学基金资助项目(51672201)
