CN1948431A - Preparation method of zinc phosphate cladded aluminium hydroxide composite inorganic fire retardant - Google Patents
Preparation method of zinc phosphate cladded aluminium hydroxide composite inorganic fire retardant Download PDFInfo
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- CN1948431A CN1948431A CN 200510112647 CN200510112647A CN1948431A CN 1948431 A CN1948431 A CN 1948431A CN 200510112647 CN200510112647 CN 200510112647 CN 200510112647 A CN200510112647 A CN 200510112647A CN 1948431 A CN1948431 A CN 1948431A
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- Prior art keywords
- aluminium hydroxide
- fire retardant
- zinc
- preparation
- zinc phosphate
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- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 title claims abstract description 39
- 229910021502 aluminium hydroxide Inorganic materials 0.000 title claims abstract description 39
- 239000003063 flame retardant Substances 0.000 title claims abstract description 32
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 title claims abstract description 18
- 229910000165 zinc phosphate Inorganic materials 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000002131 composite material Substances 0.000 title claims description 17
- 239000000243 solution Substances 0.000 claims abstract description 19
- 239000000725 suspension Substances 0.000 claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 claims abstract description 9
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims abstract description 9
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 7
- 239000011248 coating agent Substances 0.000 claims abstract description 6
- 238000000576 coating method Methods 0.000 claims abstract description 6
- 239000000843 powder Substances 0.000 claims abstract description 6
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims abstract description 4
- 239000010452 phosphate Substances 0.000 claims abstract description 4
- 150000003751 zinc Chemical class 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000007795 chemical reaction product Substances 0.000 claims abstract 2
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 claims description 10
- 229910000397 disodium phosphate Inorganic materials 0.000 claims description 10
- 235000019800 disodium phosphate Nutrition 0.000 claims description 10
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 10
- 229910000368 zinc sulfate Inorganic materials 0.000 claims description 10
- 229960001763 zinc sulfate Drugs 0.000 claims description 10
- 238000012986 modification Methods 0.000 claims description 9
- 230000004048 modification Effects 0.000 claims description 9
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 8
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 7
- 239000007822 coupling agent Substances 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 6
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 4
- 150000004645 aluminates Chemical class 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- 239000006185 dispersion Substances 0.000 claims description 3
- 150000003016 phosphoric acids Chemical class 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 238000004581 coalescence Methods 0.000 claims description 2
- 239000002270 dispersing agent Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 238000013329 compounding Methods 0.000 abstract 3
- 239000012266 salt solution Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 12
- 239000008399 tap water Substances 0.000 description 12
- 235000020679 tap water Nutrition 0.000 description 12
- 238000001914 filtration Methods 0.000 description 8
- 239000003112 inhibitor Substances 0.000 description 6
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 241001460678 Napo <wasp> Species 0.000 description 4
- 238000011049 filling Methods 0.000 description 4
- 238000009775 high-speed stirring Methods 0.000 description 4
- 230000001737 promoting effect Effects 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- 239000001488 sodium phosphate Substances 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 2
- 239000000347 magnesium hydroxide Substances 0.000 description 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000000979 retarding effect Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
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- Fireproofing Substances (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Insulated Conductors (AREA)
Abstract
This invention relates to a zinc phosphate coated superfine aluminium hydroxide compounding fire-retardant agent and its preparation. Superfine aluminium hydroxide powder is scattered in to water with hexa- sodium metaphosphate for making suspension, and then zinc salt solution and phosphate solution are added into suspension simultaneously for coating reaction, at last, the reaction product of coating reaction is filtered, washed, dried, deploymerized and conducted surface reshaping treatment with couplant. This compounding inorganic fire-retardant agent makes the chemical combination of aluminium hydroxide and zinc phosphate into truth, so the coordinated fire-retardant effect of aluminium hydroxide and zinc phosphate can be played at greatest extends to improve the fire-retardant efficiency of compounding inorganic fire-retardant agent obviously.
Description
Technical field:
That the present invention relates to is a kind of preparation method of surface cladding type composite inorganic fire retardant, more precisely is the preparation method that a kind of zinc phosphate coats ultrafine aluminium hydroxide type composite inorganic fire retardant, belongs to field of chemical engineering.
Background technology:
At present world's fire retardant development field presents the trend of non-halogenated, compoundization, harmless or low evilization and low fuming.Inorganic combustion inhibitor such as aluminium hydroxide, magnesium hydroxide chemical stability is good, not volatile, toxicity is low or nontoxic, do not produce obnoxious flavoures such as corrodibility, environmentally friendly, and raw material sources are abundant, cheap, meet the megatrend of current fire retardant, become the main direction of flame-retarded technology development to the environment-friendly type development.But single inorganic combustion inhibitor (as magnesium hydroxide, aluminium hydroxide) flame retarding efficiency is low, generally all wants high filler loading capacity could produce good flame retardant effect; In addition, because poor with the superpolymer consistency, interface binding power is little and be difficult for disperseing in the polymer matrix material, has a strong impact on the machine-shaping property of superpolymer base packing material and causes being filled mechanical property and other degradation of material.Therefore, usually be together composite in actual applications two or more inorganic combustion inhibitor, make composite inorganic fire retardant and use, make their mutual synergy, learn from other's strong points to offset one's weaknesses, thereby reach the consumption that reduces fire retardant, improve the purpose of Flame Retardancy energy, processing characteristics and mechanical property.But the compound or composite of current inorganic combustion inhibitor mostly just carries out the mechanical-physical mixing with various fire retardants in use or before using, and generally all exists and disperses uneven problem, can not bring into play the synergistic effect between fire retardant fully.
The objective of the invention is weak point at present composite inorganic fire retardant preparation method, provide a kind of zinc phosphate is coated on the method that the particle surface of ultrafine aluminium hydroxide fire retardant, the zinc phosphate of making high flame retardant efficient coat ultrafine aluminium hydroxide type composite inorganic fire retardant, realize the chemically composited of aluminium hydroxide and these two kinds of inorganic combustion inhibitors of zinc phosphate, farthest bring into play the cooperative flame retardant effect of aluminium hydroxide and these two kinds of inorganic components of zinc phosphate, greatly improve the flame retarding efficiency of composite inorganic fire retardant.
Summary of the invention:
Content of the present invention is to be raw material with ultrafine aluminium hydroxide, phosphoric acid salt, zinc salt etc., adopt chemical heterogeneous precipitation method to coat zinc phosphate layer at the ultrafine aluminium hydroxide particle surface, the zinc phosphate of preparation high flame retardant efficient coats ultrafine aluminium hydroxide type composite inorganic fire retardant.
Its processing step is:
(1) the ultra fine aluminium hydroxide body is dispersed in the water that contains dispersion agents such as Sodium hexametaphosphate 99, makes the suspension of stable dispersion;
(2) zinc solution, phosphate solution are added simultaneously carry out coating reaction in the suspension;
(3) product of coating reaction is filtered, washing, dry, separate coalescence and carry out surface modification treatment with coupling agent, obtain zinc phosphate and coat ultrafine aluminium hydroxide type composite halogen-free fire retardant.
Suspension preparation described in the above-mentioned processing step (1), its principal character is: the granularity of aluminium hydroxide powder is d
97≤ 10 μ m; Aluminium hydroxide concentration is 0.25mol/L～2mol/L; Sodium hexametaphosphate dispersant concentration is 0.05g/L～0.5g/L.
Zinc solution described in the above-mentioned processing step (2) is characterized in that the zinc salt that is added is a zinc sulfate, and add-on is 4%～40% of an aluminium hydroxide powder quality, is mixed with the aqueous solution before the interpolation, and concentration is 0.1～1.0mol/L.
Phosphate solution described in the above-mentioned processing step (2) is characterized in that the phosphoric acid salt that is added is Sodium phosphate dibasic, and add-on is 3%～30% of an aluminium hydroxide powder quality, is mixed with the aqueous solution before the interpolation, and concentration is 0.05～0.25mol/L.
Surface modification described in the above-mentioned processing step (3) is characterized in that, surface-modifying agent is silane coupling agent or aluminate coupling agent, 50～150 ℃ of modification temperatures.
Accompanying drawing 1 is the process flow sheet of the inventive method.
With the trbasic zinc phosphate Coated aluminium hydroxide composite inorganic fire retardant of the inventive method preparation, its size distribution is d97≤ 10 μ m, oil absorbency≤0.50ml/g; Be applied to the EVA CABLE MATERIALS, its main performance index is: flame retardant rating V-O, smokeless or few cigarette (smoke density≤100), oxygen index (OI) 〉=38; Hot strength＞12MPa; Elongation at break＞150%.
Below be embodiments of the invention.
Embodiment 1:
Add 46.8kg ultra fine aluminium hydroxide material in the 581L tap water and add 694g technical grade Sodium hexametaphosphate 99 ((NaPO
3)
6Content is 95%), high-speed stirring 20min is made into homodisperse suspension; With 3.5kg technical grade zinc sulfate (ZnSO
4Content is 98%) be dissolved in and be made into 0.3mol/L solution in the tap water, with 3.0kg Sodium phosphate dibasic (Na
2HPO
412H
2O is 95%) be dissolved in and be made into 0.2mol/L solution in the tap water; Same traffic with 3.24L/min adds solution of zinc sulfate and disodium phosphate soln simultaneously in the aluminium hydroxide suspension then.Press filtration washing after reaction is at room temperature finished, the laggard promoting the circulation of qi stream of filtration cakes torrefaction is pulverized, and carries out surface modification with silane coupling agent under 90 ℃ at last and obtains product 1.The main application performance of the key technical indexes of this product and filling EVA CABLE MATERIALS sees Table 1.
Embodiment 2:
Pour into 23.4kg ultra fine aluminium hydroxide material in the 291L tap water and add 507g technical grade Sodium hexametaphosphate 99 ((NaPO
3)
6Content is 95%), high-speed stirring 20min is made into homodisperse suspension; With 2.8kg technical grade zinc sulfate (ZnSO
4Content is 98%) be dissolved in and be made into 0.3mol/L solution in the tap water, with 2.6kg Sodium phosphate dibasic (Na
2HPO
412H
2O is 95%) be dissolved in and be made into 0.2mol/L solution in the tap water; Same traffic with 3.24L/min adds solution of zinc sulfate and disodium phosphate soln simultaneously in the aluminium hydroxide suspension then.Press filtration washing after reaction is at room temperature finished, the laggard promoting the circulation of qi stream of filtration cakes torrefaction is pulverized, and carries out surface modification with aluminate coupling agent under 105 ℃ at last and obtains product 2.The main application performance of the key technical indexes of this product and filling EVA CABLE MATERIALS sees Table 1.
Embodiment 3:
Pour into 18.7kg ultra fine aluminium hydroxide material in the 592L tap water and add 556g technical grade Sodium hexametaphosphate 99 ((NaPO
3)
6Content is 95%), high-speed stirring 20min is made into homodisperse suspension; With 1.4kg technical grade zinc sulfate (ZnSO
4Content is 98%) be dissolved in and be made into 0.3mol/L solution in the tap water, with 1.2kg Sodium phosphate dibasic (Na
2HPO
412H
2O is 95%) be dissolved in and be made into 0.2mol/L solution in the 15.3L tap water; Same traffic with 3.24L/min adds solution of zinc sulfate and disodium phosphate soln simultaneously in the aluminium hydroxide suspension then.Press filtration washing after reaction is at room temperature finished, the laggard promoting the circulation of qi stream of filtration cakes torrefaction is pulverized, and carries out surface modification with aluminate coupling agent under 95 ℃ at last and obtains product 3.The main application performance of the key technical indexes of this product and filling EVA CABLE MATERIALS sees Table 1.
Embodiment 4:
Pour into 28.1kg ultra fine aluminium hydroxide material in the 588L tap water and add 667g technical grade Sodium hexametaphosphate 99 (NaPO
3)
6Content is 95%), high-speed stirring 20min is made into homodisperse suspension; With 2.1kg technical grade zinc sulfate (ZnSO
4Content is 98%) be dissolved in and be made into 0.3mol/L solution in the tap water, with 1.8kg Sodium phosphate dibasic (Na
2HPO
412H
2O is 95%) be dissolved in and be made into 0.2mol/L solution in the tap water; Same traffic with 3.24L/min adds solution of zinc sulfate and disodium phosphate soln simultaneously in the aluminium hydroxide suspension then.Press filtration washing after reaction is at room temperature finished, the laggard promoting the circulation of qi stream of filtration cakes torrefaction is pulverized, and carries out surface modification with silane coupling agent under 90 ℃ at last and obtains product 4.The main application performance of the key technical indexes of this product and filling EVA CABLE MATERIALS sees Table 1.
The key technical indexes of table 1 product and application performance
| Embodiment | Particle diameter | Oil absorbency ml/g | Oxygen index LOI, % | Tensile strength MPa | Elongation at break % |
| Embodiment 1 | d 97≤10μm | 0.43 | 41.6 | 13.7 | 190 |
| Embodiment 2 | d 97≤10μm | 0.44 | 38.6 | 12.9 | 170 |
| Embodiment 3 | d 97≤10μm | 0.39 | 38.2 | 13.8 | 180 |
| Embodiment 4 | d 97≤10μm | 0.47 | 41.0 | 12.5 | 200 |
Annotate: the plastic formula that product is filled the EVA CABLE MATERIALS is: 140 parts of fire retardants, EVA100 part, oxidation inhibitor, compatilizer, each portion of lubricant.
Claims (4)
1, a kind of zinc phosphate coats the preparation method of ultrafine aluminium hydroxide type composite inorganic fire retardant, it is characterized in that its processing step is:
(1) the ultra fine aluminium hydroxide body is dispersed in the water that contains the Sodium hexametaphosphate 99 dispersion agent, makes suspension; Aluminium hydroxide concentration is 0.25mol/L～2mol/L; Sodium hexametaphosphate dispersant concentration is 0.05g/L～0.5g/L.
(2) zinc solution, phosphate solution are added simultaneously carry out coating reaction in the suspension;
(3) the coating reaction product is filtered, washing, dry, separate coalescence and carry out surface modification treatment with coupling agent.
2, zinc phosphate according to claim 1 coats the preparation method of ultrafine aluminium hydroxide type composite inorganic fire retardant, it is characterized in that the zinc salt that is added is a zinc sulfate, add-on is 4%～40% of an aluminium hydroxide powder quality, be mixed with the aqueous solution before the interpolation, concentration is 0.1～1.0mol/L.
3, zinc phosphate according to claim 1 coats the preparation method of ultrafine aluminium hydroxide type composite inorganic fire retardant, it is characterized in that, the phosphoric acid salt that is added is Sodium phosphate dibasic, add-on is 3%～30% of an aluminium hydroxide powder quality, be mixed with the aqueous solution before the interpolation, concentration is 0.05～0.25mol/L.
4, zinc phosphate according to claim 1 coats the preparation method of ultrafine aluminium hydroxide type composite inorganic fire retardant, it is characterized in that surface-modifying agent is silane coupling agent or aluminate coupling agent, 50～150 ℃ of modification temperatures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101126474A CN100460481C (en) | 2005-10-12 | 2005-10-12 | Preparation method of zinc phosphate cladded aluminium hydroxide composite inorganic fire retardant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101126474A CN100460481C (en) | 2005-10-12 | 2005-10-12 | Preparation method of zinc phosphate cladded aluminium hydroxide composite inorganic fire retardant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1948431A true CN1948431A (en) | 2007-04-18 |
| CN100460481C CN100460481C (en) | 2009-02-11 |
Family
ID=38018057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101126474A Expired - Fee Related CN100460481C (en) | 2005-10-12 | 2005-10-12 | Preparation method of zinc phosphate cladded aluminium hydroxide composite inorganic fire retardant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100460481C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101392176B (en) * | 2007-09-21 | 2011-04-20 | 中国矿业大学(北京) | Method for preparing inorganic fire resistant agent with zinc phosphate coating magnesium hydrate |
| CN104861205A (en) * | 2015-06-18 | 2015-08-26 | 广州金凯新材料有限公司 | Coated flame retardant, preparation method and application thereof, as well as high polymer composition comprising coated flame retardant |
| CN104861201A (en) * | 2015-05-14 | 2015-08-26 | 大连理工大学 | Method for preparing core-shell synergistic magnesium zinc composite flame retardants |
| CN105860140A (en) * | 2016-04-25 | 2016-08-17 | 浙江理工大学 | Preparation method of aluminum hydroxide/zinc stannate microcapsule flame retardant and product of preparation method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08103979A (en) * | 1994-10-04 | 1996-04-23 | Nittetsu Mining Co Ltd | Paper honeycomb core treated by flame retardance |
| DE19651470C2 (en) * | 1996-12-11 | 2000-08-10 | Clariant Gmbh | Flame retardant unsaturated polyester resins, process for their preparation and their use |
| DE19708726A1 (en) * | 1997-03-04 | 1998-09-10 | Hoechst Ag | Flame-retardant polymer molding compounds |
| CN1232443C (en) * | 2001-05-18 | 2005-12-21 | 北京化工大学 | Ultrafine modified aluminium hydroxide and its preparation |
| CN1162513C (en) * | 2002-12-03 | 2004-08-18 | 中国铝业股份有限公司 | Process for preparing aluminium hydroxide fire retardant |
| CN1228368C (en) * | 2003-04-07 | 2005-11-23 | 北京化工大学 | Nano inorganic composite fire-resisting agent for macromolecular material |
| CN1260323C (en) * | 2003-12-08 | 2006-06-21 | 公安部四川消防研究所 | Flame retardant composite from phosphorus, nitrogen systems |
-
2005
- 2005-10-12 CN CNB2005101126474A patent/CN100460481C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101392176B (en) * | 2007-09-21 | 2011-04-20 | 中国矿业大学(北京) | Method for preparing inorganic fire resistant agent with zinc phosphate coating magnesium hydrate |
| CN104861201A (en) * | 2015-05-14 | 2015-08-26 | 大连理工大学 | Method for preparing core-shell synergistic magnesium zinc composite flame retardants |
| CN104861205A (en) * | 2015-06-18 | 2015-08-26 | 广州金凯新材料有限公司 | Coated flame retardant, preparation method and application thereof, as well as high polymer composition comprising coated flame retardant |
| CN104861205B (en) * | 2015-06-18 | 2017-12-29 | 广州金凯新材料有限公司 | A kind of cladded type fire retardant and preparation method and application and the polymeric compositions being made from it |
| CN105860140A (en) * | 2016-04-25 | 2016-08-17 | 浙江理工大学 | Preparation method of aluminum hydroxide/zinc stannate microcapsule flame retardant and product of preparation method |
| CN105860140B (en) * | 2016-04-25 | 2018-05-22 | 浙江理工大学 | The preparation method and product of a kind of aluminium hydroxide/zinc stannate microcapsule flame retardant |
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| Publication number | Publication date |
|---|---|
| CN100460481C (en) | 2009-02-11 |
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