Thermoplastic polyurethane coatings made with mixtures of polyethers of different molecular weights with pressure sensitive adhesion property

Please use this identifier to cite or link to this item: http://hdl.handle.net/10045/74242
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Title: Thermoplastic polyurethane coatings made with mixtures of polyethers of different molecular weights with pressure sensitive adhesion property
Authors: Fuensanta, Mónica | Martín-Martínez, José Miguel
Research Group/s: Adhesión y Adhesivos
Center, Department or Service: Universidad de Alicante. Departamento de Química Inorgánica
Keywords: Thermoplastic polyurethane coating | Pressure sensitive adhesion property | Rheology | Tack | 180° peel adhesion
Knowledge Area: Química Inorgánica
Issue Date: May-2018
Publisher: Elsevier
Citation: Progress in Organic Coatings. 2018, 118: 148-156. doi:10.1016/j.porgcoat.2017.11.021
Abstract: Thermoplastic polyurethane (PU) coatings with pressure sensitive adhesion property were synthetized by reacting 4,4′-diphenylmethane diisocyanate (MDI) with 1,4-butanediol and mixtures of polypropylene glycols (PPGs) of different molecular weights (1000 and 2000 Da). Good tack at 10–37 °C was obtained in PU coatings prepared with PPG2000 + PPG1000 mixtures containing 50 wt% or more PPG2000. The pressure sensitive adhesion properties of the PU coatings were related to their minor content of bonded urethane groups and important degree of phase separation. Furthermore, these PU coatings followed Dahlquist criterion, they showed low glass transition temperatures, high tack, and low 180° peel strength. Therefore, the PU coatings had potential as pressure sensitive adhesives. Finally, PU coating made with PPG of molecular weight 1000 Da did not show pressure sensitive adhesion property.
Sponsor: Authors thanks IfarmaPyc S.L. Company (Albacete, Spain) for financial support.
URI: http://hdl.handle.net/10045/74242
ISSN: 0300-9440 (Print) | 1873-331X (Online)
DOI: 10.1016/j.porgcoat.2017.11.021
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2017 Elsevier B.V.
Peer Review: si
Publisher version: http://dx.doi.org/10.1016/j.porgcoat.2017.11.021
Appears in Collections:INV - LAA - Artículos de Revistas

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