Bonded Part With Laminated Rubber Member and Method of Making

摘要

A method of forming a bonded part with a press-fit, vulcanized rubber member residing in compression between two rigid members and bonded thereto. The rubber member is a laminate with a core layer between two self-bonding rubber layers. The bonded part may be, for example, a vibration damper, isolator or absorber. The core layer and the self-bonding layers may have the same primary elastomer and cure system type, and the self-bonding layers have an adhesion promoter not present in the core layer. The adhesive layers may be from 0.05 to 1 mm thick or from 5% to 10% of the laminate thickness.;The method includes forming a rubber core layer, curing it, applying a rubber adhesive layer on each side to form a laminate, inserting the laminate between two rigid members under compression, and post-curing to form a bonded part. The adhesive layers may be partially cured before inserting.

主权项

1. A method comprising:
(a) forming a rubber core layer from an elastomer composition comprising a primary elastomer and a cure system; (b) curing said core layer at least 80% of full cure according to ASTM D-5289 or equivalent test method; (c) applying a self-bonding rubber adhesive layer on each side of said cured core layer to form a rubber laminate; (d) inserting said rubber laminate between two rigid members where it resides under compression to form a composite article; (e) post-curing said composite article to cure the self-bonding rubber layer and to effect a bond between the self-bonding rubber layers and the rigid members and to effect a bond between the self-bonding rubber layers and the core layer, thus forming a bonded part.