Fireproof fabric capable of being porcelainized and preparation method of fireproof fabric

Abstract

The invention relates to the technical field of fireproof fabrics and in particular relates to a fireproof fabric capable of being porcelainized and a preparation method of the fireproof fabric. The fireproof fabric is prepared from liquid silicone rubber capable of being porcelainized and a surface-treated glass fiber fabric, wherein the glass fiber fabric is an alkali-free glass fiber fabric ora low-alkali glass fiber fabric; a coupling agent for treating the surface of the glass fiber fabric is one or two of a silane coupling agent HK550, a silane coupling agent KH570 and tetrabutyl titanate; the fireproof fabric provided by the invention does not utilize inorganic salts which are harmful to bodies and fireproof inorganic components are covered with the silicone rubber and are not in contact with human bodies, so that the safety performance is high; compared with common silicone rubber, the liquid silicone rubber capable of being porcelainized has the advantages that the liquid silicone rubber capable of being porcelainized does not crack and fall off at high temperature so that glass fibers in the silicone rubber can be protected from high-temperature invasion, and furthermore, the utilization temperature can be higher and a high-temperature utilization range of 600 to 900 DEG C can be reached; the fireproof fabric provided by the invention has better air tightness, does not contain carcinogenic substances and has lower cost.

Description

technical field [0001] The invention relates to the technical field of fireproof cloth, in particular to a vitrified fireproof cloth and a preparation method thereof. Background technique [0002] High-temperature-resistant fireproof cloth has the characteristics of withstanding instantaneous high temperature and no open flame, and is widely used in aerospace, metallurgy, chemical industry, building materials, fire protection and other industrial fields. The existing domestic fire protection and fire extinguishing products mainly include the following three types: [0003] 1. A kind of cotton cloth, NOMEX, BA-SOFIL, KEVLAR, carbon fiber, etc., which has been treated with a saturated ammonium chloride solution. Most of the inorganic salts used for treatment are compounds containing phosphorus, nitrogen and other elements, many of which are harmful to the human body, and will lose their fireproof function after a long time. Fibers such as NOMEX are expensive, and domestic pro...

AI Technical Summary

Problems solved by technology

[0003] 1. A kind of cotton cloth, NOMEX, BA-SOFIL, KEVLAR, carbon fiber, etc., which has been treated with a saturated ammonium chloride solution. Most of the inorganic salts used for treatment are compounds containing phosphorus, nitrogen and other elements, many of which are harmful to the human body, and will lose their fireproof function after a long time, while fibers such as NOMEX are expensive, and domestic production capacity is limited

[0004] 2. Another kind of silicone rubber coated glass fiber cloth Silicone rubber coated glass fiber fireproof cloth is made of high temperature resistant, anti-corrosion and high-strength glass fiber cloth, impregnated with silicone or impregnated. This fireproof cloth is mainly used in low temperature- Between 70°C and 230°C, at a higher temperature, the silicone on the surface of the fiber will pyrolyze and fall off, resulting in the exposure of the fiber, the decrease of gas barrier performance, and the decrease of fire resistance

[0005] 3. There is also an inorganic fiber fabric fireproof cloth, which is mainly made of fiber fabrics such as asbestos, basalt fiber, and high silica fiber. This fireproof cloth has excellent high temperature resistance, and the service temperature can reach above 1000 °C. The ability to isolate air is poor, it cannot be used for fire extinguishing, hot air flow is easy to penetrate, and asbestos itself is easy to cause cancer, and its use has been basically banned at present; basalt or high silica fiber is more expensive, and the fabric flexibility is poor