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Polymers 2018, 10(9), 975; https://doi.org/10.3390/polym10090975

Phase Separation Driven On-Demand Debondable Waterborne Pressure-Sensitive Adhesives

1
POLYMAT and Kimika Aplikatua Saila, Kimika Zientzien Fakultatea, University of the Basque Country UPV/EHU, Joxe Mari Korta Zentroa, Tolosa Hiribidea 72, 20018 Donostia-San Sebastian, Spain
2
BASF SE, Dispersions & Colloidal Materials GMD-B001, Carl-Bosch-Strasse 38, 67056 Ludwigshafen, Germany
*
Author to whom correspondence should be addressed.
Received: 27 July 2018 / Revised: 28 August 2018 / Accepted: 28 August 2018 / Published: 2 September 2018
(This article belongs to the Special Issue Emulsion Polymerization)
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Abstract

A waterborne pressure-sensitive adhesive (PSA) that shows high adhesive performance and easy debondability on demand without leaving residues on the substrate (adhesive failure) has been developed. A key component of the PSA is a semicrystalline phase that is beneficial for the adhesive properties and that becomes fluid when heated above the melting temperature. Migration of this liquid-like polymer to the substrate-adhesive interface and hardening upon cooling results in a hard non-tacky interface that facilitates debonding. The effect of the particle morphology on the debonding ability is discussed. View Full-Text
Keywords: pressure-sensitive adhesives; crystallinity; core-shell; blend; phase migration; debondability pressure-sensitive adhesives; crystallinity; core-shell; blend; phase migration; debondability
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Mehravar, E.; Gross, M.A.; Leal, G.P.; Reck, B.; Leiza, J.R.; Asua, J.M. Phase Separation Driven On-Demand Debondable Waterborne Pressure-Sensitive Adhesives. Polymers 2018, 10, 975.

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