CN102746856A - Composite intumescent fire retardant - Google Patents
Composite intumescent fire retardant Download PDFInfo
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- CN102746856A CN102746856A CN2012101934334A CN201210193433A CN102746856A CN 102746856 A CN102746856 A CN 102746856A CN 2012101934334 A CN2012101934334 A CN 2012101934334A CN 201210193433 A CN201210193433 A CN 201210193433A CN 102746856 A CN102746856 A CN 102746856A
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- fire retardant
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Abstract
The invention relates to a composite intumescent fire retardant which is used for fire retardation products, and can be directly added to product ingredients needing fire retardation as an additive. The composite intumescent fire retardant is characterized in that the composite intumescent fire retardant comprises the following raw materials, by weight, 10-50 parts of phosphoric acid, 5-20 parts of ammonium polyphosphate, 20-40 parts of magnesium hydroxide, 0.5-5 parts of an organic polymer material and 0-1 part of a dispersant. The intumescent fire retardant has an excellent fire resistance, and products added with a small amount of the intumescent fire retardant have high flame resistances. The fire retardant is simple to use, and can be added to the product ingredients as the additive.
Description
Technical field
The invention belongs to the material technology field, be specifically related to a kind of complex intumescent flame retardant.
Background technology
Expansion type flame retardant (IFR) is meant that normally with phosphorus, nitrogen, carbon be the composite flame-retardant agent of main nucleus, and it generally is made up of three parts: carbonized agent (carbon source), swelling agent (source of the gas) and charing catalyst (acid source).When being heated, can form certain thickness porous charcoal layer with its fire-retardant polymkeric substance on its surface, that this charcoal layer has is heat insulation, oxygen barrier, press down the function of cigarette and anti-molten drop, thereby plays the good flame effect.At present, expansion type flame retardant is widely used in the fire-retardant of materials such as plastics, rubber, fiber, coating, timber.
Though expansion type flame retardant has advantages such as flame retarding efficiency height, low price, toxicity are lower, also exist poor with the polymer phase capacitive, be prone to moisture absorption and defective such as ooze out.It is for example, commonly used that expansion type flame retardant---low polymerization degree ammonium polyphosphate (APP) and tetramethylolmethane (PER) all are water miscible.Therefore add these expansion type flame-retardant polymer materials out of doors or when using in the moist environment, expansion type flame retardant can and ooze out to the surface of polymer material migration, not only can reduce the mechanical property and the flame retardant properties of material, even not have the fire-resisting protection effect.
Summary of the invention
The objective of the invention is deficiency, a kind of complex intumescent flame retardant is provided to the prior art existence.
The object of the invention can be realized through following technical scheme:
A kind of complex intumescent flame retardant; It is characterized in that comprising phosphoric acid, ammonium polyphosphate, Marinco H, organic polymer material and dispersion agent, its prescription consists of (weight fraction): 0 ~ 50 part of phosphatase 11,5 ~ 20 parts of ammonium polyphosphates, 20 ~ 40 parts of Marinco Hs, 0.5 ~ 5 part of organic polymer material, 0 ~ 1 part of dispersion agent.
Each components contents is preferably following: 30 ~ 50 parts of phosphoric acid, 10 ~ 20 parts of ammonium polyphosphates, 20 ~ 40 parts of Marinco Hs, 2 ~ 4 parts of organic polymer materials, 0.05 ~ 0.5 part of dispersion agent.
Said organic polymer material is that one of acrylic ester polymer, styrene polymer, lower molecular weight brominated polystyrene, urea-formaldehyde resin or arbitrary proportion are mixed.
Said dispersion agent is a stearate.
Said stearate is one or more the mixing in Magnesium Stearate, calcium stearate, Zinic stearas, the StNa.
The preparation method of complex intumescent flame retardant of the present invention is: in there-necked flask, add ammonium polyphosphate; Under nitrogen protection, slowly add phosphoric acid; Keep being stirred under the certain temperature condition and be molten state, add organic polymer material and react for some time, add the dispersion agent stearate again with Marinco H; Continue to stir, react and obtained product in 2 hours.Above-mentioned reaction product was handled 3 hours 240 ℃ ~ 255 ℃ degassings, while hot reactant is shifted out, the cooling back is ground and is obtained powdery flame retardent.
Method of use: fire retardant of the present invention can be directly add to as additive and need get final product in the fire-retardant product batching, when preparing flame retardant plastics, flame retardant rubber product, fire retardant is directly added in the batching of plastic raw materials to getting final product.
Beneficial effect of the present invention:
Complex intumescent flame retardant of the present invention has good flame retardant property, has the advantage of low cigarette, low toxicity, anti-molten drop and non-corrosiveness gas again.The Marinco H decomposition temperature that adopts helps the raising of plastic working temperature up to 340 ℃; Even particle size distribution, good with the base material consistency, little to the influence of goods mechanical property; The Natural manganese dioxide that Marinco H burning dehydration back generates is a kind of HS, high heat-stable material; Can be used as the layer of protecting wall; Isolated burning things which may cause a fire disaster and toxic and harmful, Marinco H is strong with the neutralising capacity of acid, the sour gas SO that produces with the plastics combustion processes in can be quickly
2, NO
XDeng; The Marinco H resolving power is high, flame retarding efficiency is high, it is strong to press down the cigarette ability; Cheap, loading level is big, can reduce the cost of product greatly.
Embodiment
Below in conjunction with specific embodiment the present invention is done further detailed explanation.
Embodiment 1
Get 5 parts of ammonium polyphosphates and put into there-necked flask; Under nitrogen protection, slowly add 10 parts of phosphoric acid, keep being stirred under 200 ℃ of constant temperatures and be molten state, add 0.5 part of acrylic ester polymer and 20 parts of Marinco Hs; Reacted 6 hours; Add 0.05 part of StNa again, continue to stir, react and obtained product in 2 hours.Above-mentioned reaction product was handled 3 hours 240 ℃ of degassings, while hot reactant is shifted out, the cooling back is ground and is obtained powdery flame retardent.
Embodiment 2
Get 8 parts of ammonium polyphosphates and put into there-necked flask; Under nitrogen protection, slowly add 20 parts of phosphoric acid, keep being stirred under 200 ℃ of constant temperatures and be molten state, add 1 part of styrene polymer and 25 parts of Marinco Hs; Reacted 6 hours; Add 0.2 part of Zinic stearas again, continue to stir, react and obtained product in 2 hours.Above-mentioned reaction product was handled 3 hours 245 ℃ of degassings, while hot reactant is shifted out, the cooling back is ground and is obtained powdery flame retardent.
Embodiment 3
Get 10 parts of ammonium polyphosphates and put into there-necked flask; Under nitrogen protection, slowly add 30 parts of phosphoric acid, keep being stirred under 200 ℃ of constant temperatures and be molten state, add 2 parts of urea-formaldehyde resins and 30 parts of Marinco Hs; Reacted 6 hours; Add 0.5 part of Zinic stearas again, continue to stir, react and obtained product in 2 hours.Above-mentioned reaction product was handled 3 hours 250 ℃ of degassings, while hot reactant is shifted out, the cooling back is ground and is obtained powdery flame retardent.
Embodiment 4
Get 15 parts of ammonium polyphosphates and put into there-necked flask; Under nitrogen protection, slowly add 40 parts of phosphoric acid, keep being stirred under 200 ℃ of constant temperatures and be molten state, add 3 parts of urea-formaldehyde resins and 40 parts of Marinco Hs; Reacted 6 hours; Add 0.8 part of calcium stearate again, continue to stir, react and obtained product in 2 hours.Above-mentioned reaction product was handled 3 hours 240 ℃ of degassings, while hot reactant is shifted out, the cooling back is ground and is obtained powdery flame retardent.
Embodiment 5
Get 20 parts of ammonium polyphosphates and put into there-necked flask; Under nitrogen protection, slowly add 50 parts of phosphoric acid, keep being stirred under 200 ℃ of constant temperatures and be molten state, add 5 parts of lower molecular weight brominated polystyrenes and 35 parts of Marinco Hs; Reacted 6 hours; Add 1 part of Magnesium Stearate again, continue to stir, react and obtained product in 2 hours.Above-mentioned reaction product was handled 3 hours 255 ℃ of degassings, while hot reactant is shifted out, the cooling back is ground and is obtained powdery flame retardent.
Be fire retardant with embodiment 1-5 respectively, obtain anti-flaming polypropylene material respectively by each proportioning raw materials among the embodiment.
The preparation process: respectively that each embodiment is corresponding proportioning raw materials joins in the high-speed mixer and mixes, and dry mixture is put into the twin screw extruder blend extrude.The temperature in each district of forcing machine is controlled to be 150 ℃, 150 ℃, 160 ℃, 160 ℃ and 180 ℃ respectively; 25-60 rev/min of screw speed control.Melt blended material is extruded back naturally cooling pelletizing.
The combustibility test result of table 1 anti-flaming polypropylene material
Claims (5)
1. complex intumescent flame retardant; It is characterized in that comprising phosphoric acid, ammonium polyphosphate, Marinco H, organic polymer material and dispersion agent, its prescription consists of (weight fraction): 0 ~ 50 part of phosphatase 11,5 ~ 20 parts of ammonium polyphosphates, 20 ~ 40 parts of Marinco Hs, 0.5 ~ 5 part of organic polymer material, 0 ~ 1 part of dispersion agent.
2. complex intumescent flame retardant according to claim 1 is characterized in that each components contents is preferably following: 30 ~ 50 parts of phosphoric acid, 10 ~ 20 parts of ammonium polyphosphates, 20 ~ 40 parts of Marinco Hs, 2 ~ 4 parts of organic polymer materials, 0.05 ~ 0.5 part of dispersion agent.
3. complex intumescent flame retardant according to claim 1 and 2 is characterized in that said organic polymer material is that one of acrylic ester polymer, styrene polymer, lower molecular weight brominated polystyrene, urea-formaldehyde resin or arbitrary proportion are mixed.
4. complex intumescent flame retardant according to claim 1 is characterized in that said dispersion agent is a stearate.
5. complex intumescent flame retardant according to claim 4 is characterized in that said stearate is a kind of or its mixing in Magnesium Stearate, calcium stearate, Zinic stearas, the StNa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101934334A CN102746856A (en) | 2012-06-12 | 2012-06-12 | Composite intumescent fire retardant |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101934334A CN102746856A (en) | 2012-06-12 | 2012-06-12 | Composite intumescent fire retardant |
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| CN102746856A true CN102746856A (en) | 2012-10-24 |
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| CN2012101934334A Pending CN102746856A (en) | 2012-06-12 | 2012-06-12 | Composite intumescent fire retardant |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104532588A (en) * | 2014-12-24 | 2015-04-22 | 什邡市太丰新型阻燃剂有限责任公司 | Composite intumescent flame retardant and preparation method thereof |
| CN107828264A (en) * | 2017-11-02 | 2018-03-23 | 安徽迈高化工科技有限公司 | A kind of efficient flame-retarding agent for powdery paints |
| CN108841042A (en) * | 2018-07-13 | 2018-11-20 | 广州广化塑料管道有限公司 | Inorganic nano material and high polymerization degree APP compound flame redundant and preparation method thereof |
| JP2019119825A (en) * | 2018-01-10 | 2019-07-22 | 株式会社イノアック技術研究所 | Hard urethane resin composition |
| CN114058131A (en) * | 2021-10-22 | 2022-02-18 | 江苏卓峰新材料科技有限公司 | Environment-friendly composite flame retardant and application thereof |
| CN114605699A (en) * | 2022-03-15 | 2022-06-10 | 广信新材料科技(长沙)有限责任公司 | Inorganic novel environment-friendly flame retardant for flame-retardant paper |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101950623A (en) * | 2010-09-08 | 2011-01-19 | 沈阳天荣电缆材料有限公司 | Semiconductive flame retardant belt for cables and manufacture method thereof |
| CN102303346A (en) * | 2011-07-05 | 2012-01-04 | 山东大学 | B-P-Mg-Si series density fiber board inflaming-retarding mildewproof agent and preparation and application thereof |
-
2012
- 2012-06-12 CN CN2012101934334A patent/CN102746856A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101950623A (en) * | 2010-09-08 | 2011-01-19 | 沈阳天荣电缆材料有限公司 | Semiconductive flame retardant belt for cables and manufacture method thereof |
| CN102303346A (en) * | 2011-07-05 | 2012-01-04 | 山东大学 | B-P-Mg-Si series density fiber board inflaming-retarding mildewproof agent and preparation and application thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104532588A (en) * | 2014-12-24 | 2015-04-22 | 什邡市太丰新型阻燃剂有限责任公司 | Composite intumescent flame retardant and preparation method thereof |
| CN107828264A (en) * | 2017-11-02 | 2018-03-23 | 安徽迈高化工科技有限公司 | A kind of efficient flame-retarding agent for powdery paints |
| JP2019119825A (en) * | 2018-01-10 | 2019-07-22 | 株式会社イノアック技術研究所 | Hard urethane resin composition |
| CN108841042A (en) * | 2018-07-13 | 2018-11-20 | 广州广化塑料管道有限公司 | Inorganic nano material and high polymerization degree APP compound flame redundant and preparation method thereof |
| CN108841042B (en) * | 2018-07-13 | 2020-07-10 | 广州广化塑料管道有限公司 | Inorganic nano material and high-polymerization-degree ammonium polyphosphate compound flame retardant and preparation method thereof |
| CN114058131A (en) * | 2021-10-22 | 2022-02-18 | 江苏卓峰新材料科技有限公司 | Environment-friendly composite flame retardant and application thereof |
| CN114605699A (en) * | 2022-03-15 | 2022-06-10 | 广信新材料科技(长沙)有限责任公司 | Inorganic novel environment-friendly flame retardant for flame-retardant paper |
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Application publication date: 20121024 |