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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

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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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