Flame-retardant knitted fabric, preparation method thereof and application of knitted fabric

Abstract

The invention discloses a flame-retardant knitted fabric, a preparation method thereof and an application of the knitted fabric. Ceramic fiber knitted fabrics with different texture structures and flat knitting machine stitches are woven, experimental test results show that the dimension variance rate of the knitted fabric cannot exceed 2.5% in the environment of 260+ / -5 DEG C, forms are stable, the surface of the knitted fabric cannot be obviously changed, afterglow time is shorter than or equal to 5 seconds, the of the knitted fabric is shorter than or equal to 15 millimeters, carbonizationand molten drop are avoided, and great differences are present according to different texture structures. For knitted fabrics with different texture structures, the larger the thickness is, the heavier the gram weight is, the poorer the breathability of the fabric is, the better the flame resistance is. For knitted fabrics with higher coil density, the closer arrangement of coils is, the poorer the breathability of the fabric is, and the better the flame resistance of the fabric is. Marketability is expanded for application of the ceramic fiber knitted fabrics as fireproof blankets or fire fighting blankets, the preparation method of the knitted fabrics is simple, materials are inexpensive, and the fabric has the advantage of saving cost.

Description

technical field [0001] The invention relates to the technical field of flame-retardant knitted fabrics, in particular to a flame-retardant knitted fabric and its preparation method and application. Background technique [0002] With the rapid development of the economy, in daily life, especially in the industrial environment, the frequency of use of flammable and combustion-supporting products is increasing, and the frequency of fires is also more frequent. Indoor fires caused by throwing cigarette butts to light curtains, the "8.12 Extraordinary Fire" in Tianjin Port in 2015, etc. Most of the fire prevention tools that people often use are fire extinguishers. However, fire extinguishers generally have a three-year validity period, and a large amount of dry powder will remain after extinguishing the fire, which requires further cleaning. Water-based fire extinguishers have the potential to conduct electricity when targeting appliance fires. Compared with fire extinguishers...

AI Technical Summary

Problems solved by technology

[0003] The fire blankets or fire blankets commonly used by people are mostly made of asbestos, or are made of some high-performance fireproof fiber materials, such as glass fiber, ceramic fiber, etc., not only the preparation process is complicated, but also the cost is high, which is not conducive to daily life. use

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