固体火箭技术2026，Vol.49Issue(3)：459-467,9.DOI:10.7673/j.issn.1006-2793.2026.03.016
一种用于EPDM绝热层粘接的预涂覆型无溶剂胶黏剂的制备与性能研究
Preparation and properties of a pre-coated solvent-free adhesive for EPDM insulation bonding
摘要
Abstract
Epoxy-modified HTPB(ETPB),acrylate-modified HTPB(ATPB)and epoxy acrylate(EA),were synthesized from hydroxyl-terminated polybutadiene(HTPB)and epoxy resin E-51 as the main raw materials.These three kinds of synthetic resins were mixed with epoxy resin E-51 and additives in a certain mass ratio to prepare a solvent-free adhesive for bonding ethylene propylene diene monomer(EPDM)insulation and solid rocket motor case.For the convenience of storage and pasting,the adhesive was pre-coated on the surface of an EPDM sheet and irradiated by ultraviolet light to form a kind of pressure sensitive adhesive sheet with EPDM as the substrate.This pressure sensitive adhesive sheet is stable at room temperature and could be cured at high temperature.Based on orthogonal experiment,the proportions of the four main components in the adhesive were optimized.The results show that the bonding performance of the solvent-free adhesive is the best when the addition amounts(mass content)of epoxy resin E-51,ETPB,ATPB and EA are 39.0%,23.5%,23.5%and 6.0%,respectively.The ring initial adhesion of the pressure sensitive adhesive sheet is 8.33 N.The peel strengths of pressure sensitive adhesive sheet bonded with carbon fiber composite and aluminum material after thermal curing are 4.32 kN/m and 4.49 kN/m respectively.关键词
绝热层/无溶剂胶黏剂/三元乙丙橡胶/剥离强度/端羟基聚丁二烯Key words
insulation/solvent-free adhesive/ethylene propylene diene monomer rubber/peel strength/HTPB分类
航空航天引用本文复制引用
李素素,吴宇航,袁双春,李伟,袁剑民,李强,王登可,姚文慧,喻尧,刘超..一种用于EPDM绝热层粘接的预涂覆型无溶剂胶黏剂的制备与性能研究[J].固体火箭技术,2026,49(3):459-467,9.基金项目
航天化学能源全国重点实验开放基金(NKLACP220251B07,NKLACP220251B29). （NKLACP220251B07,NKLACP220251B29）
