硅改性酚醛树脂高温粘结部件的粘接强度及导电性能.PDFVIP

15 A dhesive Shear Streng th and E lectr ical Conduct ivity of Gr aphit e Bonded - by A dhesives of Phenol f or mal dehyde Resin M odif ied by Sil icon , , , , 030001) WA N G J i-g ang , GU O Q uan-gui, L IU L ang, SON G J in-ren Instit ute o f Coal Chem ical, Chinese A cadem ic of Science, T aiyuan , 030001) : Phenol-F or maldehyde Resin , P F) , , , 200 , 800 , 1500 ) , 200 ; 800 200 ) , ; 1500 , , : ; ; ; : T Q 433. 4+ 31: A : 1001-4381 2000) 08-00 15-0 3 : - Abstract High t em perat ure adhesives were pr epared u sing Pheno l Fo rmaldehyde Resin as mat rix and silico n po wders as addit ives t o mo dify t he pr opert ies o f t he adhesiv es . T he samples of graphit e - 200 bonded by t he abo ve adhesives w er e heat tr eat ed at diff erent t emperat ures r ang ed f rom to 1500 . Subsequent ly t heir adhesiv e shear st reng t h and elect rical conduct ivit y w ere t est ed . Result s - 200 show ed t hat bonded g raphit e sam ples heat t reated at have high elect rical resist ivit y and their f ract ure mode is due to f ailur e of graphit e, but not t he adhesion int erf ace. T he samples t reat ed at 800 demonst rat ed go od adhesio n bet w een t he adhesives and graphit e