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Molecular Crystals and Liquid Crystals Volume 743, 2022 - Issue 1
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LOW-DIMENSIONAL SOLIDS AND MOLECULAR CRYSTALS

Effects of polyolefin polyol contents on the properties of waterborne olefin polyurethane adhesives for thermoplastic polyolefins

Boo Young Jeonga Polymer Surface Research Division, Korea Institute of Footwear and Leather Technology, Busan, Korea;b Department of Polymer Science and Engineering, School of Chemical Engineering, Pusan National University, Busan, KoreaView further author information
,
Jae Hwan Chuna Polymer Surface Research Division, Korea Institute of Footwear and Leather Technology, Busan, KoreaView further author information
,
Jung Mi Cheona Polymer Surface Research Division, Korea Institute of Footwear and Leather Technology, Busan, KoreaORCID Iconhttps://orcid.org/0000-0003-4735-0334View further author information
ORCID Icon,
Won-Ki Leec Department of Polymer Engineering, Pukyong National University, Busan, KoreaView further author information
&
Chang-Sik Hab Department of Polymer Science and Engineering, School of Chemical Engineering, Pusan National University, Busan, KoreaCorrespondence[email protected]
ORCID Iconhttps://orcid.org/0000-0003-4597-918XView further author information
ORCID Icon
Pages 64-71 | Published online: 09 May 2022
 
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Abstract

In this study, water-based polyurethane adhesives (WOPU) with excellent adhesion to thermoplastic polyolefines (TPOs) were synthesized. Polyester polyol and polyolefin polyol, 4,4'-dicyclohexylmethane diisocyanate, and isophorone diamine were used. The properties of the PU dispersion were evaluated by Fourier transfer infrared spectroscopy, differential scanning calorimetry, thermogravimetry and a universal testing machine. The effects of polyolefin polyol on the properties of the PU dispersion adhesives were systematically investigated. The PU dispersion showed highest tensile strength of 278 kgf/cm2 when the ratio of polyester polyols to polyolefin polyols was 9:1. The adhesion strength and water resistance showed the same trend.

Additional information

Funding

This research was conducted with the support of R&D program for industrial-research cooperation of the Ministry of SMEs and Startups (Task No.: S2911298).

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