Method for preparing high-strength high silicone-oxygen glass fiber yarn for fire-extinguishing blanket

Abstract

The invention discloses a method for preparing high-strength high silicone-oxygen glass fiber yarn for a fire-extinguishing blanket. The method comprises the first step of raw silk treatment, the second step of acid liquor leaching treatment, the third step of washing treatment, and the fourth step of drying and sizing treatment. According to the method for preparing high-strength high silicone-oxygen glass fiber yarn for the fire-extinguishing blanket, reasonable improvements on the preparation technology of high silica-oxygen glass fiber yarn are made, the overall complexity and manufacturing cost of the process are effectively reduced, meanwhile the use performances such as the strength and temperature resistance of the finished glass fiber yarn are improved, the integrated quality is good and the promotion value is high.

Description

technical field [0001] The invention belongs to the field of fire-fighting equipment, and in particular relates to a preparation method of high-strength and high-silica glass fiber yarn used for fire-extinguishing blankets. Background technique [0002] Fire blankets are also called fire quilts, fire quilts, fire blankets, fire blankets, flame retardant blankets, and escape blankets. According to their uses, they can be divided into: household fire blankets, industrial fire blankets, etc. When a fire occurs, the fire blanket can effectively isolate the human body or objects, greatly reducing the harm caused by high temperature, and buying a lot of time for fire rescue and escape. It is also one of the common fire protection supplies in existing families. . Fire blankets can be divided into pure cotton fire blankets, asbestos fire blankets, high silica glass fiber fire blankets, carbon fiber fire blankets, ceramic fiber fire blankets, etc. according to their materials. Amon...

AI Technical Summary

Problems solved by technology

This process is too fast at the initial acid leaching rate, which is easy to cause reaction product B 2 o 3 、Na 2 The concentration of O, etc. in the solution is partially supersaturated and precipitated, which leads to the problem of product strength decline. The application number for this is: 201210360048.4 discloses a production process for high-strength and high-silica glass fiber yarn, which is effective for high-silica glass The raw fiber yarn is first pre-leached with low temperature and dilute acid, and then through the normal acid leaching and water washing process, which effectively improves the strength of the finished product, but whether it is the existing technology or the above method, the heating temperature of the acid solution is relatively high , which is highly corrosive, which is not conducive to the control of the production and processing environment, and the high temperature in the above method can cause the expansion of the fibrous structure, which is beneficial to the Na + The precipitation of metal ions, etc., thereby increasing the content of SiO2 and other components, thereby improving the quality of the fiber such as temperature resistance, but high temperature will cause loose fiber structure and severe etching, which in turn leads to the problem of overall strength decline