The New Jersey Institute of Technology's
Electronic Theses & Dissertations Project

Title:	Rubbery acrylic polymer adhesives
Author:	Walter, Steven
View Online:	njit-etd1973-027 ([viii], 69 pages ~ 2.5 MB pdf)
Department:	Department of Chemical Engineering and Chemistry
Degree:	Master of Science
Program:	Engineering Science
Document Type:	Thesis
Advisory Committee:	Wenisch, Werner J. (Committee chair) Snyder, William H. (Committee member) Kristol, David S. (Committee member)
Date:	1973-09
Keywords:	Adhesives Polymers and polymerization
Availability:	Unrestricted
Abstract:	This study shows how rubbery acrylic polymer adhesives can be used to adhere rubber substrates to each other. Two substrate rubber compounds were used. A styrene-butadiene copolymer and a styrene-acrylonitrile copolymer. The adhesives were homopolymers based on polybutyl acrylate and poly2-ethyl hexyl acrylate. Two reference standards were used. The first was commercial rubber based, solvent cements. The second was commercial acrylic solution polymers. All experimental work was compared to these standards. An attempt was made to optimize the adhesive components, as well as the adhesive application procedures and curing conditions. A primer coating consisting of polymer, monomer, and catalyst was applied to the rubber prior to the application of the adhesive. This primer coating had to be cured at 375°F for twenty minutes. It was also found to be advantageous to swell the rubber with the monomer to a slight degree before the application of the primer coating and the subsequent bonding of the rubber. The optimal adhesive was applied to the primed surfaces and cured at 375°F for three hours. The bonding strengths generated were 15 lbs./sq. in. for a lap shear sample and 41 oz./in. for a peel strength sample. These values were 1/3 the strength of the commercial rubber solvent cements and twice the strength of the commercial solution acrylic polymers.