Flame-retardant, heat-insulating, burn-through-resistant and metal-droplet-resistant multifunctional composite fabric and preparation method thereof

Abstract

The invention discloses a flame-retardant, heat-insulating, burn-through-resistant and metal-droplet-resistant multifunctional composite fabric and a preparation method thereof. The composite fabric sequentially comprises a flame-retardant heat reflection outer layer, a first heat insulation layer, a second heat insulation layer and a comfortable layer from top to bottom, the flame-retardant heatreflection outer layer is formed by compounding a base cloth layer and a functional film layer, the functional film layer is a high-temperature-resistant polymer film hybridized with heat reflection nanoparticles, the base cloth layer is a blended woven fabric of organic high-temperature-resistant fibers and common flame-retardant fibers or a common flame-retardant woven fabric, the first heat insulation layer is a blended fabric layer of intrinsic flame-retardant fibers and high-heat-shrinkage fibers, the second thermal insulation layer is a phase-change flame-retardant fabric layer, and thecomfortable layer is a viscose-covering polyester wet-permeable woven fabric layer. The composite fabric has multiple functions of flame retardance, metal molten drop resistance, burn-through resistance and heat insulation, and can be directly used for preparing protective clothing for high-temperature operation. The preparation method comprises the following steps: preparing each layer of fabric,and carrying out quilting to obtain the integral composite fabric.

Description

technical field [0001] The invention relates to the technical field of safety thermal protection fabrics, in particular to a flame-retardant, heat-insulating, burn-through, and metal droplet-resistant multifunctional composite fabric and a preparation method thereof. Background technique [0002] Personnel in high-temperature industries such as fire fighting, petrochemical, and industrial furnaces need to wear protective clothing with flame-retardant, fire-resistant and burn-through properties. This type of clothing requires a high heat reflectivity on the surface; It should have a certain ability to resist the impact of metal droplets to protect the safety of the operator. [0003] Generally speaking, the fabrics used for high-temperature-resistant and flame-retardant clothing are either woven from high-temperature-resistant organic fibers, or the fabrics are treated with flame retardants to obtain flame-retardant functional fabrics. However, the fabrics prepared by these ...

AI Technical Summary

Problems solved by technology

However, the fabrics prepared by these two methods only have certain flame retardancy, are not heat-insulating, and cannot realize their anti-metal droplet impact function.

[0004] Therefore, in order to improve the performance of the fabric against molten metal dripping, the existing welding and smelting protective clothing is made of multi-fiber blended fabrics or materials such as filming or coating aluminum on fabrics and leather to protect the human body from molten metal, sparks, etc. and high-temperature burns, such as the patent CN 10760751B discloses a flame-retardant, fire-proof, and metal droplet-proof aramid fabric, including an outer layer, a middle heat insulation layer, and an inner layer, wherein the outer layer is made of meta-aramid fiber, acrylic chloride fiber Fiber and flame-retardant gel fiber raw materials, but the fabric can not achieve the purpose of protecting high temperature radiant heat

In addition, high-temperature-resistant clothing realizes its heat insulation function through multi-layer superposition or surface metallization. For example, the existing heat-resistant clothing for firefighting and heat-resistant clothing for iron and steel smelting are all coated with a layer of high-reflectivity aluminum foil on the surface of the flame-retardant base fabric. To reflect radiant heat, the resulting problems are that the composite fabric is impervious to moisture and air, poor wearing comfort, easy to peel off the aluminum foil after heating, etc., and there are defects such as aluminum foil is flammable

Images