Effect of tackifier and crosslinkers on electron beam curable polyurethane pressure sensitive adhesive |
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| Authors: | Anil Kumar Singh Dayal Singh Mehra Utpal Kumar Niyogi Sunil Sabharwal Rakesh Kumar Khandal |
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| Institution: | 1. Shriram Institute for Industrial Research, 19-University Road, Delhi-110007, India;2. Radiation Technology Development Section, Isotope Group, Bhabha Atomic Research Centre, Trombay, Mumbai, India;1. Aero d.d., Ipav?eva Ulica 32, 3000 Celje, Slovenia;2. Faculty of Chemistry and Chemical Technology, University of Ljubljana, A?ker?eva Cesta 5, 1000 Ljubljana, Slovenia;1. Laboratory of Adhesion and Bio-Composites, Department of Agriculture, Forestry and Bioresources, College of Agriculture & Life Sciences, Seoul National University, Seoul, 08826, Republic of Korea;2. Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, 08826, Republic of Korea;3. Samsung Display Co., Ltd., Cheonan, 31086, Republic of Korea;1. Shriram Institute for Industrial Research, 19-University Road, Delhi 110007, India;2. International Atomic Energy Agency, Vienna, Austria;3. Centre of Mining Environment, Department of Environmental Science & Engineering, Indian School of Mines, Dhanbad, Jharkhand-826004, India;1. Institute of Organic Chemical Technology, West Pomeranian University of Technology, ul. Pulaskiego 10, 70-322 Szczecin, Poland;2. Polymer Institute, West Pomeranian University of Technology, ul. Pulaskiego 10, 70-322 Szczecin, Poland |
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| Abstract: | Polyurethane based pressure sensitive adhesive using monofunctional urethane acrylate and difunctional urethane acrylate has been made using electron beam irradiation. The effect of varying electron beam doses on the adhesion properties viz., peel adhesion, shear adhesion and initial tack has been studied. Effect of tackifier and crosslinkers viz., polymeric methylene diphenyl diisocynate, carbodiimide modified methylene diphenyl diisocynate and triallyl cynurate on adhesion properties as well as on moisture vapor transmission rate and gel content of the polyurethane based pressure sensitive adhesive has also been studied. It was found that with increasing dose, tackifier and crosslinkers concentration, all the adhesion properties viz., peel adhesion, shear adhesion strength and initial tack were increased upto a certain dose, concentration of tackifier and crosslinkers, reached a plateau and then levelled off with further increasing the dose, tackifier and crosslinkers concentration. Similarly, moisture vapor transmission rate was decreased and the gel content increased with increasing dose of electron beam. |
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