Method for finishing environment-friendly flame-retardant waterproof coating fabric

Abstract

The invention discloses a method for finishing an environment-friendly flame-retardant waterproof coating fabric, comprising the following steps of: preparing a polyester fabric, carrying out pretreatment of water repellence, finishing a coating, carrying out after-treatment of water repellence and producing a finished product. The flame retardant adopted by the method is a layered anion inorganic magnesium-aluminium hydrotalcite which is similar to the magnesium hydroxide and the aluminum hydroxide in structure and composition. The layered anion inorganic magnesium-aluminium hydrotalcite can release a large amount of water and carbon dioxide after being heated to decompose and absorb a large amount of heat at the same time so that the temperature of a combustion system is reduced. The water vapour and the carbon dioxide released after the layered anion inorganic magnesium-aluminium hydrotalcite is heated to decompose have the functions of diluting and blocking combustible gases. The aluminum and magnesium oxides generated from thermal decomposition and the carbide formed during the combustion of polymer materials can form a protective film on the surface of the material so that the further intrusion of oxygen is blocked and the flame-retarding effect is achieved. The solid product generated from the decomposition of hydrotalcite particles has a very large specific surface area and strong alkalinity and can absorb the acidic gases and the smoke released during the thermal decomposition of the material to fulfill the function of suppressing and abating smoke.

Description

technical field [0001] The invention belongs to the field of finishing of textiles, and relates to a finishing method of an environment-friendly flame-retardant and waterproof coated fabric. Background technique [0002] Coating finishing is a surface processing technology that evenly coats one or more layers of polymer substances on the surface of the fabric to endow the fabric with certain functions. Coating finishing is characterized by low production cost, convenient operation, and does not affect the original performance of the fabric. , and can change the appearance and style of the fabric and increase the function of the fabric, and has been highly valued and developed rapidly at home and abroad. [0003] The coating agent endows the coated fabric with waterproof performance, and is divided into solvent type and water dispersion type according to the dosage form. Solvent-type has low film-forming temperature, good film-forming property, strong adhesion, and good wate...

AI Technical Summary

Problems solved by technology

[0006] At present, the environment-friendly flame retardants are mainly inorganic and environment-friendly organophosphorus-nitrogen series. The widely used inorganic types are magnesium oxide, aluminum oxide, magnesium hydroxide, aluminum hydroxide, etc., which have good compatibility with coating agents, but The amount of addition required is large, which has a great impact on the physical properties of the fabric; more environmentally friendly organics are based on phosphorus and nitrogen, but there are fewer products that are better compatible with coating agents, so environmentally friendly flame-retardant coatings are applied to fabrics Difficulty in organizing

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