Waterproof breathable organic silicon synthetic leather and manufacturing method thereof

Abstract

The invention relates to a waterproof breathable organic silicon synthetic leather and a manufacturing method thereof. The synthetic leather comprises a cloth substrate or a fiber substrate and at least one organic silicon rubber layer compounded on the surface thereof, wherein the organic silicon rubber is prepared from 50-70% of vinyl-containing polydiorgnosiloxane base polymer, 2-5% of silicon-hydrogen bond-containing oligomeric siloxane vulcanization crosslinking agent, 0.5-2% of platinum compound vulcanization catalyst, 0.5-2% of alkynol hydrosilylation addition reaction inhibitor, 5-10% of white carbon black, 5-10% of calcium carbonate and 10-20% of sodium chloride of 100-200 meshes. The manufacturing method of the synthetic leather comprises the following steps: selecting a substrate; gluing; drying and curing; and boiling to leach the sodium chloride. Since the sodium chloride is added and the synthetic leather is boiled in water after being molded, the sodium chloride can be completely dissolved in the water, so that a certain number of air holes can be formed in the synthetic leather, thereby enduing the synthetic leather with certain breathability. Because the formed air holes have small hole diameters, water can not penetrate through the air holes of the synthetic leather, thereby ensuring the favorable waterproof function.

Description

technical field [0001] The invention belongs to the technical field of synthetic leather, in particular to a waterproof breathable organic silicon synthetic leather and a manufacturing method thereof. Background technique [0002] The Chinese patent application No. 200510034344.5 is a breathable organic silicon synthetic leather and a production method thereof, which discloses a breathable organic silicon synthetic leather, which can be applied to the fields of clothing, footwear, furniture, surface decoration, packaging and the like. It is composed of cloth substrate or fiber substrate and silicone rubber. At least one layer of silicone rubber is compounded on the surface of cloth substrate or fiber substrate. The outer surface of silicone rubber can be properly coated with multi-color silicone coating layer . The processing steps include selecting the base material, gluing, drying and curing, etc. The processing technology is simple, the production cost is low, there is n...

AI Technical Summary

Problems solved by technology

The synthetic leather produced has a certain degree of air permeability, but the waterproof and breathable performance of the above-mentioned synthetic leather still cannot achieve a good effect