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International Journal of Latest Research in Science and Technology

DOI:10.29111/ijlrst   ISRA Impact Factor:3.35

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EFFECT OF CROSS-LINKING ON ADHESION PROPERTY OF BENZOYL-PEROXIDE-CURED EPOXIDIZED NATURAL RUBBER (ENR 25)/ ACRYLONITRILE-BUTADIENE RUBBER (NBR) BLEND ADHESIVE

Research Paper Open Access

International Journal of Latest Research in Science and Technology Vol.3 Issue 4, pp 104-108,Year 2014

EFFECT OF CROSS-LINKING ON ADHESION PROPERTY OF BENZOYL-PEROXIDE-CURED EPOXIDIZED NATURAL RUBBER (ENR 25)/ ACRYLONITRILE-BUTADIENE RUBBER (NBR) BLEND ADHESIVE

B. T. Poh, B. Azahari, K.W. Soo

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Received : 30 June 2014; Accepted : 18 July 2014 ; Published : 31 August 2014

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Abstract

The effect of benzoyl peroxide loading on the adhesion properties of cross-linked epoxidized natural rubber (ENR 25) / acrylonitrile-butadiene rubber (NBR) blend adhesives were studied using coumarone indene resin resin and toluene as tackifier and solvent respectively. Throughout the study, benzoyl peroxide was used to crosslink the rubber blend adhesive with the loading from 1 to 5 parts per hundred part of rubber (phr) at 80ºC for 30 min. The SHEEN hand coater was used to coat the adhesive on polyethylene terephthalate (PET) at 30 µm and 120 µm coating thickness. The adhesion properties were determined by a Lloyd adhesion tester operating at 30 cm min−1. Results shows that the loop tack and peel strength of the ENR 25/NBR adhesive pass through a maximum value at 2 phr of benzoyl peroxide. This observation is attributed to the optimum crosslinking of rubber blend chains where optimum cohesive and adhesive strength is obtained. The shear strength, however, increases steadily with increasing benzoyl peroxide loading due to the steady increase in the cohesive strength of crosslinked rubber blend adhesive. In all cases, the adhesion properties of adhesives increase with increase in coating thickness.

Key Words   
Adhesion; Adhesive; Rubber; Crosslinking; Tackifier

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References
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To cite this article

B. T. Poh, B. Azahari, K.W. Soo , " Effect Of Cross-linking On Adhesion Property Of Benzoyl-peroxide-cured Epoxidized Natural Rubber (enr 25)/ Acrylonitrile-butadiene Rubber (nbr) Blend Adhesive ", International Journal of Latest Research in Science and Technology . Vol. 3, Issue 4, pp 104-108 , 2014

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