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Ionic bond jointed phosphor ¿C nitrogen type flame retardant, and preparation method

A technology of ionic bonds and flame retardants, which is applied in the field of phosphorus-nitrogen flame retardants and their preparation, can solve problems such as pollution, and achieve the effects of avoiding pollution, environmental protection, and simple preparation methods

Active Publication Date: 2007-05-09
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of covalent bond phosphorus-nitrogen flame retardants, and to design and provide a phosphorus-nitrogen flame retardant bonded by ionic bonds by utilizing the principle of supramolecular chemistry. A series of pollution problems caused by valence bonds, and even a series of production safety problems; improve the interaction between flame retardants and their decomposition products and polymer materials, thereby improving the flame retardant efficiency of flame retardants

Method used

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  • Ionic bond jointed phosphor ¿C nitrogen type flame retardant, and preparation method
  • Ionic bond jointed phosphor ¿C nitrogen type flame retardant, and preparation method
  • Ionic bond jointed phosphor ¿C nitrogen type flame retardant, and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Weigh 17.12g (0.08mol) of hydroxyphenoxyphosphine acrylic acid (CEPP) into a three-necked flask filled with 80ml of deionized water, heat and stir with a magnetic stirrer, and raise the temperature to 65°C to completely dissolve CEPP, and then add P-aminobenzenesulfonamide (SAA) 13.76g (0.08mol), and at a reaction temperature of 80°C, react for 0.5h, stop heating, cool to 30°C, a large amount of white product precipitates out, continue to cool to room temperature, separate and dry The milky white solid product was obtained with a yield of 99.0%.

Embodiment 2

[0037] Weigh 10.70 g (0.05 mol) of hydroxyphenoxyphosphine acrylic acid (CEPP) and 1.36 g of natural montmorillonite into a three-necked flask filled with 60 ml of deionized water, heat and stir with a magnetic stirrer, and raise the temperature to 20° C. CEPP is completely dissolved, then add 6.30g (0.05mol) of melamine, and react at a reaction temperature of 80°C for 2.5h, stop heating, cool to 20°C, a large amount of white product precipitates out, continue to cool to room temperature, separate and dry A milky white solid product was obtained with a yield of 98.0%.

Embodiment 3

[0039] Weigh 12.64g (0.08mol) of phenylphosphonic acid and 0.0028g of magnesium chloride into a three-necked flask filled with 50ml of deionized water, heat and stir with a magnetic stirrer, and raise the temperature to 25°C to completely dissolve the phenylphosphonic acid. Then add 13.76g (0.08mol) of p-aminobenzenesulfonamide, and react at a reaction temperature of 40°C for 1.0h, then stop heating, cool to room temperature, and precipitate the product with methanol as a precipitant, separate and dry to obtain a milky white solid Product, the yield was 97.0%.

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Abstract

This invention discloses a P-N type flame retardant by ionic bonding. The flame retardant is composed of components I and II at a mol ratio of 1:1 or 3:2 by ionic bonding. Component I is dibasic acid or dihydric phenol containing P. Component II is diamine or triamine. This invention also discloses a method for preparing the flame retardant. The flame retardant has such advantages as no halogen, high carbonization efficiency, good flame retardancy, short retarding course, high retarding efficiency, simple process, little pollution and easy control.

Description

technical field [0001] The invention belongs to the technical field of phosphorus-nitrogen flame retardant and its preparation method. It specifically relates to a phosphorus-nitrogen type flame retardant bonded by ionic bonds instead of covalent bonds and a preparation method thereof. The flame retardant provided by the invention has the characteristics of halogen-free, non-toxic, high efficiency, etc., and is suitable for flame retardancy of polymers such as epoxy resin, polyolefin, nylon, polyester, ABS, and HIPS. Background technique [0002] Polymer materials have outstanding advantages such as light weight, chemical corrosion resistance, easy processing, wear resistance, wide temperature range, and best cost performance, and have been widely used in daily life such as textiles, electrical appliances, electromechanical, and building materials. However, most polymer materials are composed of three elements such as C, H, and O, and have the common characteristics of bein...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K21/12C08K5/5399C08L63/00C08L23/00C08L77/00C08L67/00C08L55/02
Inventor 王玉忠赵乘寿
Owner SICHUAN UNIV
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