摘要
以N,N,N',N'-四缩水甘油基-1,3-间苯二甲胺(TGMXDA)和双酚F环氧(DGEBF)作为基体,以4,4'-双([4-氨基-2-三氟甲基)苯氧基]联苯(6FBAB)和3,3'-二氨基二苯砜(3,3'-DDS)作为固化剂制备了新型环氧基体树脂。研究了环氧基体与固化剂的结构和配比对环氧固化物耐热与力学性能的影响规律。结果表明,TGMXDA-DGEBF/6FBAB-DDS树脂体系固化物具有良好的力学性能,拉伸强度达到101 MPa,冲击强度>20 kJ/m2,断裂伸长率>6%。同时,该树脂体系还具有良好的耐热稳定性,氮气中的5%失重温度>330℃。
Novel epoxy matrix resins have been prepared with the tetraglycidyl meta-xylenediamine（TGMXDA） and bisphenol F epoxy（DGEBF） as the matrix and the aromatic diamines,4,4′-bis[（4-amino-2-trifluoromethyl）phenoxy]biphenyl（6FBAB） and 3,3′-diamino-diphenylsulfone（DDS） as the hardeners.The effects of the chemical structures and formulations of epoxy resins and the diamine hardeners on the properties of the cured epoxy compounds were systemically investigated.The results indicated that the TGMXDA-DGEBF/DDS-6FBAB epoxy systems exhibited good toughness with the tensile strengths exceeded 101 MPa,impact strengths higher than 20 kJ/m^2,and elongations at break over 6.0%.Meanwhile,the cures epoxy showed good thermal stability up to 330℃ in nitrogen.
出处
《宇航材料工艺》
CAS
CSCD
北大核心
2012年第2期69-72,共4页
Aerospace Materials & Technology
关键词
环氧树脂
增韧
含氟二胺
热性能
力学性能
Epoxy resin
Toughening
Fluoro-containing diamine
Thermal stability
Mechanical properties
