Evaluation on the Manufacturing Technique and Properties of the Polyurethane coated Polyester Fabrics

• Main Authors: Quan-kun Wu, 巫坤權
• Other Authors: 林佳弘
• Format: Others
• Language: zh-TW
• Published: 2016
• Online Access: http://ndltd.ncl.edu.tw/handle/87906254657369435786

碩士 === 逢甲大學 === 纖維與複合材料學系 === 104 === The island of Taiwan is surrounded by seas. On holidays and weekends, more and more people are participating in water sports. Sports such as kite surfing, windsurfing, hang gliding, and paragliding have become increasingly popular in recent years. Therefore, research into the textiles used to manufacture kites, sails, parachutes, etc. is becoming increasingly important. This study uses 20D, 30D, and 40D polyester lattice fabrics and PU coating preparation and processing technology to prepare PU-coated fabrics. One to five PU coating layers are used in the preparation process in order to evaluate their effect on the performance of the polyester fabric samples. The weight, maximum tensile breaking strength, elongation at breaking point, tear strength, air permeability, bursting strength, weatherability, resistance to sea water, and resistance to changing PH are evaluated. Samples of the best-performing preparations are then compared with commercially available nylon 66 products and the differences are analyzed. The results show that, with a fixed coating speed of 13 m/min and a resin viscosity of 1500 cps, a 20D polyester lattice cloth with two coats, a 30D polyester lattice cloth with three coats, and a 40D polyester lattice cloth with four coats produce the best results for mechanical properties and air permeability. As for environmental factors, when comparing the coated polyester fabric to commercially available nylon 66 products, the results show that the coated polyester fabric has good weatherability and resistance to alkali, acids, and seawater. In comparison, the commercially available nylon 66 has good resistance to alkali and seawater, but low weatherability and poor resistance to acids. These research results demonstrate a polyester coating process that can be used to prepare cloth for the production of kite-surfing kites, windsurfing sails, and paraglider parachutes, etc.