CN103044712A - Preparation method of smoke suppression halogen-free magnesium-system flame retardant for insulation extruded sheet - Google Patents
Preparation method of smoke suppression halogen-free magnesium-system flame retardant for insulation extruded sheet Download PDFInfo
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- CN103044712A CN103044712A CN2012105814613A CN201210581461A CN103044712A CN 103044712 A CN103044712 A CN 103044712A CN 2012105814613 A CN2012105814613 A CN 2012105814613A CN 201210581461 A CN201210581461 A CN 201210581461A CN 103044712 A CN103044712 A CN 103044712A
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- magnesium hydroxide
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Abstract
The invention belongs to the field of halogen-free environmental-friendly production of a polystyrene extruded sheet and particularly relates to a preparation method of a smoke suppression halogen-free magnesium-system flame retardant for an insulation extruded sheet. The product is prepared by preparing modified ore magnesium hydroxide from a surface modifier and magnesium hydroxide, then adding melamine, ammonium polyphosphate, zinc borate and processing aid according to a certain proportion and carrying out stirring processing by a high-speed stirrer. The magnesium hydroxide is decomposed to release a great volume of water to dilute oxygen on the surfaces of combustibles when being heated, active magnesium oxide generated in the heating process is a material with high strength and high heat resistance, and the magnesium oxide particles greatly increase the specific surface area and can greatly adsorb smoke generated in the burning process, so that an obvious smoke suppression effect is achieved; and halogen-free flame retardance of the extruded sheet is implemented and when the flame retardant effect is achieved, the use amount of the magnesium hydroxide is reduced, and not only is excellent environmental-friendly flame-retardant performance of the extruded sheet ensured, but also excellent heat preservation and heat insulation, excellent resistance to compression and excellent construction performance of the extruded sheet are ensured.
Description
Technical field
The invention belongs to polystyrene extruded sheet halogen-free environmental production field, be specifically related to a kind of preparation method who presses down cigarette Halogen magnesium flame retardant for insulating extruded board.
Background technology
Extruded sheet is exterior-wall heat insulation, the freezer lagging material that is most widely used at present, it has good resistance to compression and good workability, but the extruded sheet that does not add fire retardant is a kind of inflammable material, and oxygen index is 18 only, and the afterfire growth indices of igniting in air is very high.
The extruded sheet fire retardant that is most widely used at present is the bromide fire retardants such as hexabromocyclododecane, the extruded sheet of using this fire retardant production discharges huge dense smoke and the contour poisonous gas of hydrogen bromide when burning, become the first killer that the scene of fire causes casualties.And, this fire retardant decomposes in the situation of the processing temperature that is lower than extruded sheet during production in a large number because decomposition temperature is lower, and the strong acid that produces after decomposing not only corrodes production unit but also meeting so that plastic degradation, reduce the molecular weight of extruded sheet, the mechanical property straight line descends.The simultaneously decomposition of fire retardant also can cause the decline of self flame-retarded efficiency, and takes unconventional addition manner in order to reach flame retardant resistance, will further cause the raising of cost and the destruction of environment.
Therefore, the bromide fire retardants such as hexabromocyclododecane are eliminated gradually in the extruded sheet field at present, and halogen-free flame retardants because of himself have environmental friendliness, the advantage such as nontoxic receives increasing the concern and research, especially magnesium hydroxide has more wide prospect because of the fire-retardant and environmental protection characteristic of its brilliance.
Summary of the invention
The objective of the invention is to overcome existing environmental protection defective in the prior art, a kind of preparation method who presses down cigarette Halogen magnesium flame retardant for insulating extruded board is provided.
A kind of component that presses down cigarette Halogen magnesium flame retardant for insulating extruded board among the present invention is as follows, and following component is calculated according to weight percent:
Modification ore type magnesium hydroxide 40%-60%,
Trimeric cyanamide 20%-40%
Ammonium polyphosphate 10%-20%
Zinc borate 10%-20%
Processing aid 2%-5%;
Described processing aid is lubricant, and wherein, lubricant is one or several in whiteruss, PE wax, the oxidation PE wax.
Described modification ore type magnesium hydroxide is to be added in the homogenizer by surface-modifying agent and magnesium hydroxide, temperature is controlled at 60-110 ℃, mix and make, wherein surface-modifying agent is in silane coupling agent, titanate coupling agent, stearic acid, stearate, sodium oleate, Sodium dodecylbenzene sulfonate, Aluminate, diphenyl phosphate, rare earth class properties-correcting agent, dibutyl phthalate, the dioctyl phthalate (DOP) one or more; The surface-modifying agent ratio range is 1%-5%, and surplus is magnesium hydroxide; Described magnesium hydroxide particle diameter is 1-10 μ m.
A kind of preparation method who presses down cigarette Halogen magnesium flame retardant for insulating extruded board: with the modification ore type magnesium hydroxide that makes, add trimeric cyanamide, ammonium polyphosphate, zinc borate, processing aid by proportioning, under 70-120 ℃, through homogenizer stir process 30-120 minute, obtain a kind ofly pressing down cigarette Halogen magnesium flame retardant for insulating extruded board.
The present invention compared with prior art has following beneficial effect:
1, the oxygen that discharges large quantity of moisture dilution combustiblematerials surface occurs to decompose in magnesium hydroxide when being heated, the activated magnesia that generates simultaneously is a kind of high strength, high heat-stable material, be attached to the isolated burning things which may cause a fire disaster in combustiblematerials surface and toxic and harmful, the carrying out that has further stoped again burning; And magnesium oxide particle has increased specific surface area greatly, can adsorb in a large number the smog that burning generates, thereby reach significant smoke suppressing effect.
2, the present invention adopts the mode of multiple halogen-free flame retardants composite flame-proof, realized the non-halogen fire-retardant of extruded sheet, when reaching flame retardant effect, reduce the magnesium hydroxide consumption, guaranteed outside the good environmental protection flame retardant performance of extruded sheet, guaranteed heat insulating that extruded sheet is good and good resistance to compression and good workability.
Specific embodiments
The present invention is further described below in conjunction with specific embodiment, but the present invention's scope required for protection is not limited to the scope that embodiment explains.
Embodiments of the invention 1: the magnesium hydroxide of getting 2kg silane coupling agent and 50kg median size and be 5 μ m joins in the homogenizer and mixes under 60-110 ℃, obtain modification ore type magnesium hydroxide, then add successively trimeric cyanamide 30kg, ammonium polyphosphate 10kg, zinc borate 10kg, paraffin 2kg is in 100 ℃ of situations in temperature, after the homogenizer high-speed stirring is processed 45 minutes, emit, make product.
Embodiments of the invention 2: the magnesium hydroxide of getting 2kg stearic acid and 50kg median size and be 5 μ m joins in the homogenizer and mixes under 60-110 ℃, obtain modification ore type magnesium hydroxide, then add successively trimeric cyanamide 30kg, ammonium polyphosphate 10kg, zinc borate 10kg, paraffin 2kg is in 100 ℃ of situations in temperature, after the homogenizer high-speed stirring is processed 45 minutes, emit, make product.
Embodiments of the invention 3: the magnesium hydroxide of getting 2kg titanate coupling agent and 50kg median size and be 5 μ m joins in the homogenizer and mixes under 60-110 ℃, obtain modification ore type magnesium hydroxide, then add successively trimeric cyanamide 30kg, ammonium polyphosphate 10kg, zinc borate 10kg, paraffin 2kg is in 100 ℃ of situations in temperature, after the homogenizer high-speed stirring is processed 45 minutes, emit, make product.
Claims (4)
- One kind be used for insulating extruded board press down cigarette Halogen magnesium flame retardant, it is characterized in that component is as follows, following component is calculated according to weight percent:Modification ore type magnesium hydroxide 40%-60%,Trimeric cyanamide 20%-40%Ammonium polyphosphate 10%-20%Zinc borate 10%-20%Processing aid 2%-5%.
- According to claim 1 a kind of for insulating extruded board press down cigarette Halogen magnesium flame retardant, it is characterized in that processing aid is lubricant, wherein, lubricant is one or several in whiteruss, PE wax, the oxidation PE wax.
- 3. according to claim 1ly a kind ofly press down cigarette Halogen magnesium flame retardant for insulating extruded board, it is characterized in that, modification ore type magnesium hydroxide is to be added in the homogenizer by surface-modifying agent and magnesium hydroxide, and temperature is controlled at 60-110 ℃, mixes to make; Wherein surface-modifying agent is in silane coupling agent, titanate coupling agent, stearic acid, stearate, sodium oleate, Sodium dodecylbenzene sulfonate, Aluminate, diphenyl phosphate, rare earth class properties-correcting agent, dibutyl phthalate, the dioctyl phthalate (DOP) one or more; The surface-modifying agent ratio range is 1%-5%, and surplus is magnesium hydroxide; The magnesium hydroxide particle diameter is 1-10 μ m.
- 4. according to claim 1ly a kind ofly press down cigarette Halogen magnesium flame retardant for insulating extruded board, it is characterized in that, the preparation method is: with the modification ore type magnesium hydroxide that makes, add trimeric cyanamide, ammonium polyphosphate, zinc borate, processing aid by proportioning, under 70-120 ℃, through homogenizer stir process 30-120 minute, obtain a kind ofly pressing down cigarette Halogen magnesium flame retardant for insulating extruded board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105814613A CN103044712A (en) | 2012-12-28 | 2012-12-28 | Preparation method of smoke suppression halogen-free magnesium-system flame retardant for insulation extruded sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105814613A CN103044712A (en) | 2012-12-28 | 2012-12-28 | Preparation method of smoke suppression halogen-free magnesium-system flame retardant for insulation extruded sheet |
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| CN103044712A true CN103044712A (en) | 2013-04-17 |
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| CN2012105814613A Pending CN103044712A (en) | 2012-12-28 | 2012-12-28 | Preparation method of smoke suppression halogen-free magnesium-system flame retardant for insulation extruded sheet |
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Cited By (3)
| 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 |
| CN104631737A (en) * | 2014-12-26 | 2015-05-20 | 神盾防火科技有限公司 | Manufacturing method for polystyrene A-level non-ignitable building outer wall heat-preservation decorative plate |
| WO2015189810A1 (en) | 2014-06-13 | 2015-12-17 | Csir | Liquid flame retardant composition |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101210079A (en) * | 2006-12-31 | 2008-07-02 | 大连亚泰科技新材料有限公司 | Mg(OH)2 inorganic anti-flaming material and its preparing method and application |
| CN102532948A (en) * | 2011-12-30 | 2012-07-04 | 大连亚泰科技新材料有限公司 | Preparation method and application of modified magnesium hydroxide flame retardant for copper clad plate |
-
2012
- 2012-12-28 CN CN2012105814613A patent/CN103044712A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101210079A (en) * | 2006-12-31 | 2008-07-02 | 大连亚泰科技新材料有限公司 | Mg(OH)2 inorganic anti-flaming material and its preparing method and application |
| CN102532948A (en) * | 2011-12-30 | 2012-07-04 | 大连亚泰科技新材料有限公司 | Preparation method and application of modified magnesium hydroxide flame retardant for copper clad plate |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015189810A1 (en) | 2014-06-13 | 2015-12-17 | Csir | Liquid flame retardant composition |
| 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 |
| CN104631737A (en) * | 2014-12-26 | 2015-05-20 | 神盾防火科技有限公司 | Manufacturing method for polystyrene A-level non-ignitable building outer wall heat-preservation decorative plate |
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Application publication date: 20130417 |