Abstract:

To improve the waterproof breathability and mechanical properties of poly-ether block amide coating, the inorganic particles were prepared by St?ber method, and filled into poly-ether block amide polymer materials with strong hydrophobicity, then the high-performance organic/inorganic composite waterproof breathable coating fabric was prepared. The composition, morphology and structure of the inorganic particles, and morphology of the coating and coating fabric was characterized, and the effects of the inorganic particles addition amount on the properties of coating and coating fabric were studied. Results show that the inorganic particles are nano silicon dioxide microspheres, the comprehensive performance of coated fabric can be effectively improved by the addition of nano silicon dioxide microspheres in moderation, and then meet the clothing requirements. With 1.5% addition amount of the nano silicon dioxide microspheres, the comprehensive performance of coating fabric are optimal, the breaking force and elongation at break of the coating increased 52.4% and 11.0% respectively. The waterproof property of the coating fabric is improved 20.0%, and the breathable performance is improved 242.6%.

Key words: coating fabric, poly-ether block amide, nano silicon dioxide microsphere, waterproof property, breathable property