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Phosphorus-nitrogen type halogen-free ionic fire retardant, preparation method thereof and fire retarding polyvinyl alcohol material prepared from the same

A polyvinyl alcohol and flame retardant technology, which is applied in the direction of fire retardant coatings, etc., can solve the problems of affecting the mechanical properties and other properties of materials, adding a large amount of flame retardants, increasing material costs, etc., to avoid harm to the human body, water solubility Good performance and the effect of improving mechanical properties

Active Publication Date: 2007-10-24
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of organic solvents will not only cause environmental pollution, but also increase material costs
Another example is JP2004123805, which reports a halogen-free flame-retardant PVA product, whose LOI can reach up to 32%, but the addition of flame retardant is relatively large (up to 50.0wt%), and the flame retardant is used in the PVA system as Micron-scale dispersion, which will inevitably affect the mechanical properties and other properties of the material

Method used

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  • Phosphorus-nitrogen type halogen-free ionic fire retardant, preparation method thereof and fire retarding polyvinyl alcohol material prepared from the same
  • Phosphorus-nitrogen type halogen-free ionic fire retardant, preparation method thereof and fire retarding polyvinyl alcohol material prepared from the same
  • Phosphorus-nitrogen type halogen-free ionic fire retardant, preparation method thereof and fire retarding polyvinyl alcohol material prepared from the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Dissolve 16.6g (0.1mol) of 1,2-dimethyl 1,3-propanediol phosphoric acid in 16.6ml of water and reflux for 1.0 hour, cool down to 70°C, then add 5.0ml (0.14mol) of ammonia water dropwise, and heat to reflux After 2.5 hours, cool, crystallize and filter to obtain a solid ionically bonded P-N type flame retardant (I) with a melting point of 232°C.

[0042] First, 15.0% of P-N type flame retardant (I), 15.0% of melamine were stirred at a temperature of 90°C to make it fully dissolved in 80ml of water, and then 0.3% of NiSAO and 69.7% of PVA (0588) were added. After stirring for 3.0 hours at a constant temperature of ℃, ultrasonic dispersion for 30 minutes is enough.

Embodiment 2

[0044] Dissolve 16.6g (0.1mol) of 1,2-dimethyl 1,3-propanediol phosphoric acid in 35.0ml of water and reflux for 0.5 hours, cool down to 80°C, and then add 10.8g (0.1mol) of p-phenylenediamine, Heat to reflux for 2.0 hours, cool, crystallize and filter to obtain a solid ionically bonded P-N type flame retardant (II) with a melting point of 242°C.

[0045] Stir 7.5% of P-N type flame retardant (II) and 15.0% of melamine phosphate at a temperature of 90°C to fully dissolve them in 80ml of water, then add 1.0% of CuSA and 76.5% of PVA (0588) , stirred at 85°C for 3.0 hours, then ultrasonically dispersed for 30 minutes.

Embodiment 3

[0047] Dissolve 16.6g (0.1mol) of 1,2-dimethyl 1,3-propanediol phosphoric acid in 75.0ml water and reflux for 0.5 hours, cool down to 80°C, then add 0.06mol sulfonamide dropwise, heat and reflux for 0.5 hours, cool The solid ion bonded P-N type flame retardant (II) with a melting point of 108° C. was obtained by crystallization and filtration.

[0048] Stir 7.5% of P-N type flame retardant (II) and 7.5% of melamine phosphate at a temperature of 90°C to fully dissolve them in 80ml of water, then add 0.5% of CoSA and 84.5% of PVA (1788) , Stir and blend at 90°C for 3.0 hours, then ultrasonically disperse for 30 minutes.

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Abstract

The invention discloses a phosphonitryl no halide ion fire retardant which comprises the following structures: regarding R1 as linear alkyl or linear alkylbenzene; regarding R2 as linear alkylbenzene; regarding R3 as linear alkyl or acyl or linear alkylbenzene (the carbon atomicity on the straight chain of R1, R2, R3 is 0-6). The invention also discloses a method for the fire retardant and a fire retardant polyvinyl alcohol material with a compounded fire retardant made up by the fire retardant and the other composition. The invention provides no halide ion and a good water-solubility, which reduces the adding content; provides a good force property, a low cost, a simple technique.

Description

technical field [0001] The invention belongs to the technical field of phosphorus nitrogen type halogen-free flame retardant and its preparation method and flame retardant polyvinyl alcohol material, and specifically relates to a phosphorus nitrogen type halogen-free ion bonded flame retardant and its preparation method, and its use Prepared flame retardant polyvinyl alcohol material. Background technique [0002] With the continuous development of science and technology, polymer materials have been widely used in people's daily life, but because most of them are combustible materials, it also increases the risk of fire. Statistics from the United Nations World Fire Center (WFSC) show that there are 6 to 7 million fires every year, and more than 70,000 fire deaths. According to the 2006 national fire statistics released by the Fire Department of the Ministry of Public Security of my country, there were 222,702 fires in 2006, 1,517 deaths, and 784.46 million economic losses ...

Claims

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Application Information

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IPC IPC(8): C09K21/12C08L29/04
Inventor 王玉忠王德龙赵春霞刘娅王德义
Owner SICHUAN UNIV
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