ISSN: 1813-0410

Keywords : Adhesion

Enhancing Adhesion between layers of Babylon tyre

journal of kerbala university, 2008, Volume 4, Issue 3, Pages 317-322

There are three types of adhesion difficulties faced by the Babylon Tyre manufactured: bonding the inner liner to the fabric cord, bonding the tread to the breaker bandage, and bonding the sidewall to the bead apex. We have investigated the adhesion between layers of tyre by using maleic anhydride (MA) in an elastomer while using phenolic resin, resorcinol, or novolak in another elastomer to understand the role of (MA) as an adhesion promoter. The cure rate slowed down when MA was added to the rubber compound, but changes in the physical properties were not significant. An improvement in adhesion was seen in presence of MA with phenolic resin (PH) and with (resorcinol) more than MA with novolak. Esterification reactions are the postulated mechanism for the observed promotion of adhesion.

Studying the effect of a new polyamide as adhesive for wood-wood surfaces

Mohammad N. AL-Baiati; Laith B. AL-Asady; Hawraa H. AL-Zubadi; Saja A. Abd-Alkareem

journal of kerbala university, 2005, Volume 1, Issue 0, Pages 15-21

In this research, a new copolyamid was prepared from reaction Aceglutamide with Formaldehyde by esterfication process, and used this copolymer as adhesive between wood – wood surface. Five different weight ( 0.2, 0.4 , 0.6, 0.8 & 1.0 gm ) from the prepared copolymer respectively, were used as adhesive to prepared the specimens of wood / adhesive . Four standard test methods were used to measured the adhesion properties which are; ASTM: D-790, ASTM: D- 695, ISO – 179 &ASTM: D-638 .
The results obtained from these tests indicated that, the specimens of wood / adhesive containing 1.0 gm from the prepared copolymer have high values in all standard tests; Impact strength was 45 MPa, Compressive strength was 40 MPa, Flexural strength was 250 MPa and Tensile strength was 8150.41 MPa ; compared with the other specimens which contain on less weight from the prepared copolymer.