alexa Behavior of Adhesion Forces of the Aqueous-Based Polyurethane Adhesive Magnetically Conditioned | OMICS International | Abstract
ISSN: 2329-6798

Modern Chemistry & Applications
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Research Article

Behavior of Adhesion Forces of the Aqueous-Based Polyurethane Adhesive Magnetically Conditioned

Wanderley da Costa1*, Edith MM Souza2, Leonardo GA Silva3 and Helio Wiebeck4

1Department of Metallurgical Engineering and School of Polytechnic, USP, Sao Paulo, Brazil

2Department of Metallurgical and Materials Engineering of the Polytechnic School, USP, São Paulo, Brazil

3Centro Technology Radiation, IPEN, São Paulo, Brazil

4Departament of Metallurgical and Materials Engineering of the Polytechnic School, USP, São Paulo, Brazil

*Corresponding Author:
Wanderley da Costa
Department of Metallurgical Engineering and School of Polytechnic
USP, Sao Paulo, Brazil
Tel: +5511991235550
E-mail: [email protected]

Received Date: October 06, 2016; Accepted Date: October 21, 2016; Published Date: October 30, 2016

Citation: Costa W, Souza EMM, Silva LGA, Wiebeck H (2016) Behavior of Adhesion Forces of the Aqueous-Based Polyurethane Adhesive Magnetically Conditioned. Mod Chem Appl 4:190. doi: 10.4172/2329-6798.1000190

Copyright: © 2016 Costa W, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

This research presents a new proposal to water based adhesives manufacturing process, utilizing magnetic conditioning. Using this technique it is possible to increase the adhesion capacity between the adhesive and the substrate. The formulation proved to be efficient after the magnetic conditioning and without reactivation which also generated a significant alteration of the viscosity which was 350 mPa.s to 1100 mPa.s, without the necessity of the addition of any other product as thickener. If we compare the same adhesive formulation, with magnetic conditioning and without reactivation and an adhesive without magnetic conditioning and with reactivation, the increase of adhesion capacity was 42.11%, in the magnetically conditioning. When we verify the shear stresses in adhesive without reactivation, without magnetic conditioning and irradiated at 15 kGy we found an average of 3.29 × 105 Pa in the shear stresses, that is 2.16 times lower, compared with the average value found in the test specimens, magnetically conditioned, without reactivation, which was 7.11 × 105 Pa. If the non-ionizing radiation dose of 25 kGy passes, the shear stresses decrease considerably, regardless of the process, with or without magnetic conditioning has the consequence of breaking of the bonds of the polymeric matrix with the test specimens interface

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