Polyimide-coated fabrics with multifunctional properties: Flame retardant, UV protective, and water proof
JOURNAL OF APPLIED POLYMER SCIENCE, vol.136, no.23, 2019 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 136 Issue: 23
- Publication Date: 2019
- Doi Number: 10.1002/app.47616
- Journal Name: JOURNAL OF APPLIED POLYMER SCIENCE
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Keywords: flame retardant, multifunctional textile, polyimide coating, protective technical textile, UV-A resistant, water proof
- Dokuz Eylül University Affiliated: No
Abstract
Multifunctional technical textiles are of great interest both by industry and academia and these products are considered as high value-added products that contribute to the economies of countries. In this study, polyamic acid (PAA) was synthesized through polycondensation of pyromellitic dianhydride (PMDA) and 4,4 '-oxydianiline (ODA) in dimethyl acetamide (DMAc) at low temperature. Then, PAA was coated onto woven cotton and polyester fabric by padding technique. Finally, polyimide (PI)-coated multifunctional cotton and polyester fabrics were obtained by an easy coating technique and low-temperature imidization. Thus, low cost, easily accessible and widely used cotton and polyester fabrics were converted to high-performance textile products, which are flame retardant, UV protective, acid resistant, and waterproof. The chemical, thermal, morphological, optical, mechanical, wettability, chemical resistance, and flame retardancy properties of developed fabrics were investigated. Optical results showed that both PI-coated cotton and polyester fabrics are UV-A protective compared to noncoated fabrics. Moreover, PI-coated samples have high contact angles which are 111.43 degrees and 113.40 degrees for PI-coated cotton (PI-c-C) and PI-coated polyester (PI-c-PET), respectively. Young's modulus of PI-c-PET fabrics increased four times more than noncoated polyester fabric. PI coating changed the burning behavior of both cotton and polyester fabrics in a positive way. All the test results showed that these developed multifunctional textile products might find an application in different industrial areas such as automotive, aerospace, protective clothing, and so on due to easy and inexpensive production techniques and also superior properties. (c) 2019 Wiley Periodicals, Inc.