耐高温聚酰亚胺结构胶黏剂的研究.pdf

# # 范 琳 孙宏杰 霍海涛 杨士勇 (, 100190) 合成了以苯乙炔基封端的系列聚酰亚胺胶黏剂, 究了分子结构分子量固化工艺等因素对其 耐热和粘接性能的影响规律结果表明: 合成的聚酰亚胺胶黏剂具有优异的耐热和高温粘接性能, 对不锈钢试 片粘接的剪切强度在 316e 下 \10 MPa, 在 400e 下为 3 MPa 聚酰亚胺, 胶黏剂, 耐高温 H igh-Tem erature Resistant Polymi ide Adhesives Fan L in Sun H ongjie H uoH aitao Y ang Shiyong ( Laboratory of Advanced Polym erM aterials, Institute of Chem istry Ch inese, Academ y of Sciences, Beijing 100190) Abstract A series of olymi ide adhesives end-ca edw ith henylethynyl grou sw ere synthesized. The effects of molecu lar structures, molecularw eights and curing conditions on the therm al stab ilities and adhesion ro erties of o-l ymersw ere investigated. The resu lts indicated that the olymi ide adhesives exhib ited good thermal stab ilities and ex- cellent adhesive ro erties at elevated tem erature, giving the la shear strength for stainless steel over 10 MPa at 316e and as high as 3 MPa at 400e . Key words Polymi ide, Adhesive, H igh-Tem erature resistance 1 , [ 8~ 13] [ 1] , 300e , : ( 1); ( 2) , , ; ( 3) , , , , [ 2] , ,Tg , 2 [ 3~ 6] 250e , 4- ( PEPA ) , , 3, 3. , 4, 4. - ( DSDA )( m - PDA ) , 1, 4- ( 2- - 4- ) , ( 6FAPB) , , m - PDA 6FAPB 1B03B12B11B11B30B1( PI- , 1~ PI- 6), 1 500 ~ 5 000 [ 7] , 1 : 2008- 09- 20 : , 1964, , E- m ail: fanlin@ iccas. ac. cn 2009 1