KR20040084329A - Flame retardant processing method on fibrous materials by natural mineral and aqueous flame retardant. - Google Patents

Abstract

PURPOSE: A finishing method of flame retardant fiber material is characterized by applying natural mineral having fire resistance to fiber material and applying a liquid flame retarding agent comprised of phosphoric acid, chromic potassium alum and silicate type active mineral. The flame retardant fiber material is useful for construction materials, a filler of fiber, a flame retardant filler of a sound proof panel, a fiber filler of a car and interior materials. CONSTITUTION: Flame retardant fiber material is obtained by the steps of: putting fabric into a washing bath containing 1% of hydrogen peroxide, 0.5% of caustic soda and 70-80deg.C of water, followed by stirring the bath to scour the fabric; putting 10wt.% of fire retardant silicate active mineral, 15% of a water soluble polyurethane binder and the fabric to adhesive the active mineral to the fabric; preparing a liquid flame retarding agent comprised of phosphoric acid, chromic potassium alum and ammonium phosphate monobase; and then applying the liquid flame retardant to the fabric with a dipping method or a padding bath method.

Description

Processing method of flame retardant functional fibrous material combining natural mineral and liquid flame retardant. {FLAME RETARDANT PROCESSING METHOD ON FIBROUS MATERIALS BY NATURAL MINERAL AND AQUEOUS FLAME RETARDANT.}

In the present invention, a fixing technique for completely fixing natural inorganic minerals on a fiber and a high-performance transparent liquid flame retardant produced at low cost by the present inventors are added in the present processing, so that the fibrous material has a fireproof function for a long time even in a high temperature flame state of more than 750 ° C. It is a technology to process and have the processing sequence and method as follows.

1. Refining process of fibrous material-This refining step is to prepare fire resistant activated stone on the fiber and prepare 1% hydrogen peroxide and 0.5% calcined water in the washing tank containing 70 ~ 80 ℃ water. After being put together with the material to be refined, the scouring operation is carried out by washing and stirring method for 20 minutes, and after dehydration, it is washed with washing water at room temperature for 10 minutes and then dehydrated.

2. Process for attaching refractory silicate active stone-After inserting water-soluble polyurethane binder with a particle size of 10% by weight relative to the weight of the adherend and 15% water-soluble polyurethane binder over 1200MESH into a washing tank containing water of 70 ~ 80 ℃ The complex is added and stirred for 20 minutes to fix the activated stone, followed by washing with water at room temperature and drying.

The component ratio of the refractory silicate active stone used at this time is as follows.

SiO2 ........... 65.8%

Al2O3 .......... 28.5%

Fe2O3 .......... 0.49%

CaO ............ 0.27%

MgO ............ 0.07%

Na2O ........... 0.58%

K2O ............ 0.42%

Ig loss ........ 3.80%

3. Preparation of transparent liquid flame retardant and input into padding bath-This process is a transparent liquid flame retardant developed and manufactured by the present inventors on the fixed state of coating shape of silicate-based active mineral having a fire-resistant function at a high flash point of 1500 ° C. It is aimed at obtaining perfect flame retardant fibrous material by immersing once again or passing the padding bath at a pickup rate of 20% to 30%. The composition and preparation method of the liquid flame retardant is as follows.

1) Phosphoric acid concentration of 85%,

2) Chromic potasium alum (10%) concentration,

3) After preparing ammonium phosphate monobasep, add ammonium phosphate monochromate to 5-10% by weight of chromium alum and stir until it becomes clear with a stirrer, and then add 20% to 50% phosphoric acid at a concentration of 85%. Add and stir to complete. In this way, the finished fibrous materials not only satisfy the fire resistance for a long time even at a high temperature of more than 750 ° C., but also can be processed in a simple washing machine facility instead of a general dyeing machine, and in terms of production cost because they use raw materials developed and prepared by the present inventors. It can be said to be unique internally and externally, which is a very beneficial invention and technology for humanity and national economy.

The purpose of the present invention is that the technology of the present inventors, that is, the active minerals adhesion technology and the liquid flame retardant manufacturing technology to cooperate with each other, it is possible to produce an industrial material with a long fire-resistant function at a high flash point that was desperately needed in various industrial fields Therefore, it opens a new chapter in the flameproof functional material market, and the inventors develop, manufacture and use the processing technology of all materials other than the basic materials, and the processing method is very simple, and it is inexpensive in terms of production cost, contributing to humanity and nationally. There is a great deal of purpose and meaning.

Currently, the flame retardant is largely divided into powdered flame retardant powder and phosphorus liquid flame retardant, and the powder flame retardant is used for fire extinguishers, and the liquid flame retardant is sprayed and immersed in various fibers and is distributed in the market as flame retardant fibers. However, these phosphate-based flame retardants have a disadvantage in that they are simple to use, but they can't perform their functions at high ignition points above 750 ℃, and the cost is 2000 ~ 3000 won / kg. You can not even use the situation. However, the inventor's technology not only consists of less than 500 won per kg of material, but also uses less than 10-20%, so it is not only unique in terms of production cost, but most of the core technologies are the only technology that only the inventor can do. Because of this, the originality of the present technology can be found in that there has been no similar technology or attempt in the past.

Therefore, the present invention overcomes the general stereotype that natural minerals cannot be completely adhered to fibrous materials due to the difference in specific gravity, thereby applying natural minerals having a fire-resistant function to the fibrous materials at a solidification point of 1500 ° C. or higher. The technical problem can be solved by additionally applying a high-performance liquid flame retardant developed by the inventor at a low cost in order to obtain a more complete flame retardant function.

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The fibrous mineral fixation technology has been able to mass-produce by mechanical fixation technology rather than the traditional yellow soil dyeing method. It is an industrial revolution, and this is the only and unique way to obtain perfect and safe flame retardant effect. The new era of the flame retardant functional material market has arrived due to the addition of a simple, high-performance liquid flame retardant developed by the present inventors to the law, and thus it can be said to be a very beneficial technology in the country because it can obtain foreign currency both industrially and externally.

Claims (1)

Processing method of flame retardant functional fibrous material combining natural mineral and liquid flame retardant. Description: After refining the fibrous material during the fabrication process, using polyurethane binder as the fixing medium, the refractory minerals are completely fixed on the fiber, and the phosphorus-based flame retardant is added by the dipping method or the padding bath method, which is a fiber dyeing post-processing process. It is a processing technology to obtain a perfect flame retardant fibrous material, which has brought new electricity to the flame retardant market and contributes to humanity and the national interest.