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Expansion type flame-retardant and its preparation method

An intumescent and flame retardant technology, applied in the direction of fire-resistant coatings, etc., can solve the problems of high price and affecting the flame-retardant effect, and achieve the effect of simple preparation method

Inactive Publication Date: 2008-02-13
SHANDONG JUANCHENG TAIDOU HIGH TECH MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this stage, ammonium polyphosphate or melamine phosphate, dipentaerythritol or pentaerythritol and melamine are used in the world at this stage. The intumescent flame retardant is a combination of intumescent flame retardants, and its price is high. The proportion and mixing process of the three raw materials will affect the flame retardant effect

Method used

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  • Expansion type flame-retardant and its preparation method
  • Expansion type flame-retardant and its preparation method
  • Expansion type flame-retardant and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Raw materials: pentaerythritol (industrial product), ammonium hydrogen phosphate (industrial product), urea (industrial product), formaldehyde (industrial product), triethanolamine (industrial product)

[0029] Preparation:

[0030] Step 1: Add 300g of water, 100g of pentaerythritol, and 200g of diamine hydrogen phosphate into a three-necked flask, heat while stirring, heat to 130°C, keep warm for 1 hour, and cool to room temperature, namely pentaerythritol phosphate.

[0031] Step 2: Add 650g formaldehyde and 300g urea into a three-necked bottle, adjust the pH to 8 with triethanolamine, heat to 80°C, react for 1 hour, vacuum dehydrate, cool to room temperature, pour into the solidifier, and then put the first step The reacted pentaerythritol phosphate is added into the curing device equipped with the second-step product while stirring, stirred for 10 minutes, left for 1 hour, cured, pulverized, and dried to obtain the intumescent fire retardant.

[0032] According to ...

Embodiment 2

[0039] Raw materials: glucose (industrial product), ammonium dihydrogen phosphate (industrial product), urea (industrial product), formaldehyde (industrial product), triethanolamine (industrial product)

[0040] Preparation:

[0041] Step 1: Add 300g of water, 80g of glucose, and 150g of ammonium dihydrogen phosphate into a three-necked flask, heat while stirring, heat to 140°C-150°C, keep warm for 1.5 hours, and cool to room temperature to obtain glucophosphate.

[0042] Step 2: Add 320g of formaldehyde and 150g of urea into a three-necked flask, adjust the pH to 9 with triethanolamine, heat to 85°C, react for 1.5 hours, vacuum dehydrate, and cool to room temperature. Pour it into the curing device, then add the glucophosphate ester reacted in the first step into the urea-formaldehyde resin of the second step reaction while stirring, stir for 10 minutes, place it for 2 hours, take it out from the curing device, crush it, and dry it. That is, intumescent fire retardant.

[0...

Embodiment 3

[0050] Raw materials: starch (industrial product), urea (industrial product), formaldehyde (industrial product), phosphoric acid (industrial product), triethanolamine (industrial product)

[0051] Preparation:

[0052] Step 1: Add 200g of water, 20g of starch, and 80g of phosphoric acid into a three-neck flask, heat while stirring, heat to 150°C, keep it warm for 2 hours, and cool to room temperature to obtain starch phosphate ester.

[0053] Step 2: Add 450g formaldehyde and 200g urea into a three-necked bottle, adjust the pH to 8-9 with triethanolamine, heat to 90°C, react for 1.5 hours, vacuum dehydrate, cool to room temperature, pour into the solidifier, and then put the first Stir the starch phosphate ester of the first step reaction into the urea-formaldehyde resin of the second step reaction, stir for 10 minutes, let it stand for 1.5 hours, take it out from the curing device, crush it, and dry it to get the intumescent fire retardant.

[0054] According to the standard...

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Abstract

The invention discloses a novel inflatable fire-retardant of general formula (I). In terms of preparation method, a reaction of polyhydroxy compound and phosphoric acid or ammonium phosphate salt is conducted to achieve phosphate ester; a reaction of urea and formaldehyde is conducted to achieve urea-formaldehyde resin; and then the achieved phosphate ester and urea-formaldehyde resin are solidified by crosslinking to achieve the final product. The fire-retardant is applied to various polymers for fire-retarding, particularly applicable to fire-refractory coatings for inflatable fire-retarding.

Description

technical field [0001] The invention relates to an intumescent fireproof flame retardant, which is suitable for flame retardancy of various fireproof coatings and flammable polymers. Background technique [0002] Polymer materials have been widely used in various fields such as industry, civil and construction, but the flammability of these materials also brings potential fire hazards to people. People pay more and more attention to the prevention of fire, which creates a new technical field, polymer material flame retardant technology. [0003] Polymer flame retardant technology generally adopts the method of adding in practical applications, that is, adding flame retardants. This kind of flame retardant can be roughly divided into two categories, additive type and reactive type. Additive flame retardants are usually added to polymers during the processing of polymer materials, and do not chemically react with polymer materials and their additives to increase flame retard...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K21/12C08K5/21C09D5/18
Inventor 马成夫忻鼎浩
Owner SHANDONG JUANCHENG TAIDOU HIGH TECH MATERIAL
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