FACTORS WHICH INFLUENCE THE HIGH-TEMPERATURE ADHESIVE CHARACTERISTICSOF LIQUID-CRYSTALLINE COPOLYESTERS

Citation
J. Economy et Ag. Andreopoulos, FACTORS WHICH INFLUENCE THE HIGH-TEMPERATURE ADHESIVE CHARACTERISTICSOF LIQUID-CRYSTALLINE COPOLYESTERS, The Journal of adhesion, 40(2-4), 1993, pp. 115-125
Citations number
12
Categorie Soggetti
Engineering, Chemical","Material Science
Journal title
ISSN journal
00218464
Volume
40
Issue
2-4
Year of publication
1993
Pages
115 - 125
Database
ISI
SICI code
0021-8464(1993)40:2-4<115:FWITHA>2.0.ZU;2-A
Abstract
Liquid crystalline copolyesters of p-hydroxybenzoic acid and 6-hydroxy -2-naphthoic acid, with compositions 20/80 and 24/76, were studied in order to evaluate the effect of higher melting HBA/HNA copolyesters on the high temperature adhesive properties compared with data for the r ecently reported 73/27 system. A tetramer of HBA/HNA with a compositio n of 24/76 was synthesized to examine the effect on adhesion of wettin g of the substrate at much lower temperatures. From the results of thi s study it is now possible to define approaches for achieving very goo d adhesion characteristics at temperatures well in excess of 250-degre es-C.