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Phosphorus-containing fire retardant as well as preparation method and application thereof

A flame retardant, flame retardant finishing technology, applied in textiles and papermaking, fiber processing, plant fibers, etc., can solve the problems of poor water solubility, poor smoke suppression, difficult application, etc., and achieve the effect of good flame retardant performance

Inactive Publication Date: 2014-10-01
QIQIHAR UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the problem that the existing hexachlorocyclotriphosphazene is used in the flame-retardant finishing process of cellulose fiber fabrics, and its water solubility is poor, so it is difficult to apply it in the flame-retardant finishing process of cellulose fiber fabrics, so the application of hexachlorocyclotriphosphazene in the fabric In the application of flame retardant, and the current commonly used flame retardant finishing process has the problem of toxic flame retardant or toxic substances produced when the flame retardant fabric is burned, and poor smoke suppression, and provides a phosphorus-containing flame retardant and its preparation method and application

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Phosphorus-containing fire retardant as well as preparation method and application thereof
  • Phosphorus-containing fire retardant as well as preparation method and application thereof
  • Phosphorus-containing fire retardant as well as preparation method and application thereof

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specific Embodiment approach 1

[0025] Specific implementation mode 1: A phosphorus-containing flame retardant of this embodiment, a general structural formula of a phosphorus-containing flame retardant is:

[0026] Said n is 8-16.

[0027] This phosphorus-containing flame retardant is a cyclophosphazene degradable chitosan derivative JCHP.

specific Embodiment approach 2

[0028] Specific embodiment two: the preparation method of a kind of phosphorus-containing flame retardant described in this embodiment is carried out according to the following steps: mix hexachlorocyclotriphosphazene and diethyl ether and stir to dissolve to obtain mixture A, and then add it to mixture A Adding chitosan and pyridine degraded with a mass concentration of 6% hydrogen peroxide, and stirring and reacting for 14h to 20h at a temperature of 20°C to 25°C and a stirring speed of 500rpm to 700rpm to obtain a mixture B, Then add absolute ethanol to the mixture B and let it stand for 12h-24h, suction filter to obtain the crude product, wash the crude product with diethyl ether for 3-5 times, and then use the volume percentage of 30%-50% methanol solution as the extraction The agent is subjected to Soxhlet extraction and purification, Soxhlet extraction and purification for 24h-48h to obtain the pure product, and finally the pure product is vacuum-dried at a temperature o...

specific Embodiment approach 3

[0031] Embodiment 3: This embodiment is different from Embodiment 2 in that: the degree of polymerization of chitosan degraded by 6% hydrogen peroxide is 8-16. Others are the same as in the second embodiment.

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Abstract

The invention discloses phosphorus-containing fire retardant as well as a preparation method and an application thereof, aiming at solving the problems that the application of phosphonitrilic chloride trimer in fabric flame retardancy is limited as the phosphonitrilic chloride trimer is poor in water solubility in the cellulosic fiber fabric flame-proof treatment process, is hard to apply to the cellulosic fiber fabric flame-proof treatment process, and moreover the flame retardant which is frequently used in the conventional flame-proof treatment process is toxic and toxic substances can be generated and the smoke suppression property is poor when the flame retardant fabric is combusted. The structural formula of the phosphorus-containing fire retardant is shown in the specification. The preparation method comprises the following steps: mixing phosphonitrilic chloride trimer with diethyl ether, adding degraded chitosan and pyridine, standing, performing suction filtration, washing, purifying and drying, thereby obtaining the phosphorus-containing fire retardant. The application comprises the following steps: 1, destarching and boiling to smelt; 2, respectively soaking and extruding for three times; and 3, drying, thereby obtaining a linen fabric after phosphorus-containing fire retardant treatment. The invention discloses the phosphorus-containing fire retardant, the preparation method and the application thereof.

Description

technical field [0001] The invention relates to a flame retardant and a preparation method and application thereof. Background technique [0002] With the improvement of people's material living standards, the comfort and elegance of the living environment has been paid more and more attention. Therefore, places such as hotels, hotels, and households consume a large amount of high-grade decorative cloth. Linen, once known as the "Queen of Natural Fibers", has noble and gorgeous textiles with soft luster and soft touch. It has been used by royal families and nobles for curtains, tablecloths, tapestries, wall coverings and other decorative cloths since ancient times. It is applied to decorative cloths such as automobiles, cruise ships, and airplanes, but flax fibers are extremely flammable, and the use of its fabrics for decoration will increase many unsafe factors. Investigations show that fires caused by interior decorative fabrics must be given great attention. In order to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B37/08D06M15/03D06M101/06
Inventor 邓启刚陈朝晖王则臻王斐宋伟明
Owner QIQIHAR UNIVERSITY
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