Waterborne polyurethane modified with silicone macromer and the nylon airbag coated with it. Issue 19 (November 2016)

• Record Type: Journal Article
• Authors: Go, Cheol Wan; Yang, Jeong Han; Kwak, Dong-sup; Kim, Gi-Woong; Jeong, Han Mo
• Is Part Of: Textile research journal. Volume 86:Issue 19(2016)
• Page Start: 2015
• Page End: 2021
• Publication Date: 2016-11
• Subjects: waterborne polyurethane -- silicone macromer -- nylon-6 -- 6 -- airbag; Textile industry -- Periodicals; Textile fabrics -- Periodicals; Textile research -- Periodicals; Textiles et tissus -- Industrie et commerce -- Périodiques; Textiles et tissus -- Périodiques; Textiles et tissus -- Recherche -- Périodiques; Electronic journals; 677.005
• DOI: 10.1177/0040517515619352
• Languages: English
• ISSNs: 0040-5175

Abstract

A waterborne polyurethane (WPU) with a double bond in the main chain was modified with a poly(dimethylsiloxane) (PDMS) macromer having a terminal methacrylate group (PDMS methacrylate macromer) by using a radical mechanism, and the changes in various physical properties were examined. Although the crystallinity of the soft segment domain increased, the cohesion of the hard segments was weakened as a result of the modification with the PDMS methacrylate macromer. The adhesion between the WPU and nylon decreased due to the hydrophobic/low polarity of the PDMS component, and this improved the flexibility and the tear strength of the nylon-6, 6 textile coated with WPU. The air permeability of the coated textile also increased as a result of the modification.