CN102558710A - Intumescent flame retardant for mine - Google Patents
Intumescent flame retardant for mine Download PDFInfo
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- CN102558710A CN102558710A CN201110434312XA CN201110434312A CN102558710A CN 102558710 A CN102558710 A CN 102558710A CN 201110434312X A CN201110434312X A CN 201110434312XA CN 201110434312 A CN201110434312 A CN 201110434312A CN 102558710 A CN102558710 A CN 102558710A
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Abstract
The invention provides an intumescent flame retardant for a mine. The intumescent flame retardant is characterized in that the intumescent flame retardant comprises following components by weight part: 100 parts of polyvinyl chloride, 50 parts of nickel hypophosphite Ni(H2PO4)2.6H2O, 20 parts of aluminum phosphate, 20 parts of organic montmorillonite processed by using dodecyl-to-octadecyl trimethyl ammonium chloride or ammonium bromide, 30 parts of zinc borate, 10 parts of heat stabilizers, 10 parts of one of or a mixture of melamine, melamine polyphosphate, ammonium polyphosphate (APP), phosphinate, melamine pyrophosphate (MPP) and melamine cyanurate (MCA), 5 parts of modifiers, 3 parts of processing additives, 3 parts of wear resisting agents and 5 parts of oxidants.
Description
Technical field
The invention belongs to control mine coal spontaneous combustion technical field, relate in particular to a kind of mine and use expansion type flame retardant.
Background technology
The mine accident of China takes place frequently at present; Gas explosion especially takes place, cause large-scale mine fire, mine fire is mine fire or underground fire again; Be meant the fire in places such as occurring in colliery underworkings, workplace, chamber, worked-out section, seriously involve and threaten downhole safety.And China at present the fire resistance of a lot of mines is relatively poor, so problem demanding prompt solution is exactly to put forward the fire resistance of mine, strengthens the firmness of mine.The fire prevention of existing mine is exactly that the effect of playing is very faint through be coated with the common frie retardant coating of last layer at outermost layer, in case closely there is the naked light will presence of fire, loss be very heavy.
Though the method for traditional sprinkling perfusion stopping agent can play a role to the control spontaneous combustion of coal; But bigger limitation is arranged; Particularly, adopt traditional method can't the liquid stopping agent be sprayed and be filled into the designated area, and be difficult to accomplish to be evenly distributed for some long and narrow mine laneways; Duration of fire resistance is also limited, inaccessible effective fire-retardant control effect.The all inaccessible ideal control effect of mine coal that existing above-mentioned traditional method is had relatively high expectations to spontaneous combustion of coal.On this basis, the application provides a kind of novel mine to use expansion type flame retardant.
Summary of the invention
A kind of mine is used expansion type flame retardant, it is characterized in that each component by mass percentage the proportioning meter be respectively:
100 parts of SE;
50 parts of Hypophosporous Acid, 50 nickel (H
2PO
4)
26H
2O;
20 parts of phosphagel phosphaljels;
20 parts through 12 organic montmorillonoids to OTAC or brometo de amonio processing;
30 parts of smog inhibitors; Said smog inhibitor is a kind of or any mixture between them in white lake, Marinco H, aluminum oxide, lime carbonate, zinc borate, the zinc molybdate;
10 parts of thermo-stabilizers, said thermo-stabilizer are thiol methyl tin or toxilic acid dibutyl tin or Pb stabilizer or the wherein a kind of or any mixture between them of metallic soap class stablizer;
The mixture of one or more in 10 parts of trimeric cyanamides or trimeric cyanamide melamine salt or ammonium polyphosphate (APP) or phosphinates or melamine pyrophosphate salt (MPP) or the melamine cyanurate (MCA);
5 parts of properties-correcting agent, said properties-correcting agent are MBS or chlorinatedpolyethylene;
3 parts of processing aids, said processing aid are TEB 3K-ethyl acrylate copolymer or BA-St-TEB 3K-ethyl acrylate copolymer;
3 parts of anti-wear agents, described anti-wear agent are wherein one or more mixture of graphite, molybdenumdisulphide, wollastonite, polynite, tetrafluoroethylene, silicon-dioxide, titanium oxide.
5 parts of oxygenants.
Further; Said organic montmorillonoid is a proportioning by mass percentage; 100 parts na montmorillonites, the water high speed are left standstill the aqueous dispersions that 24h forms polynite after stirring 1h; Again alkylamine salt and 10 parts of concentrated hydrochloric acid/SPAs of 10 parts are adjusted the even protonated solution of stirring formation in 82 ℃ of water, it is dropwise added in the aqueous dispersions of polynite, and this mixed solution is at room temperature filtered behind 82 ℃ of following high-speed stirring 1.5h; Reduce the concentration of Cl-or Br-then with the zero(ppm) water repeated washing, and use 0.1mol/l AgNO
3Solution check filtrating till do not have a white precipitate; The product of gained will be pulverized with ball mill 82 ℃ of following vacuum-dryings to constant then, and the product of gained is said organo montmorillonite (Organic-MMT).
Further, said properties-correcting agent can also be one or more the mixture in maleimide or maleic anhydride or maleic anhydride grafts and the verivate thereof.
More preferably, oxygenant is selected from permanganate, hypochlorite or superoxide.
Further describe the intercalation mechanism of polynite at this; Because the polynite possess hydrophilic property, the organically-modified of polynite is one step of key of preparation polynite, macromolecular material, and intercalator not only will get into the nanometer space between the lamella of polynite easily; And want to increase significantly the repetition interval of sheet interlayer; And make polynite change close organic property into, increase flame retardant resistance simultaneously, so just help polymer monomer or polymkeric substance further to insert between the lamella by wetting ability.
Wherein the preparation of zinc borate is following:
The boric acid neutralisation
[1] boric acid-zinc hydroxide method
2Zn(OH)
2+6H
3BO
3＝2ZnO·3B
2O
3·3.5H
2O+7.5H
2O
This method drops into reactor drum according to a certain percentage with boric acid and zinc hydroxide, controls certain solid-to-liquid ratio, reacts 5-7h down in 90-100 ℃.The advantage of this route is exactly that the utilization ratio of single, the no three wastes of product, boric acid is higher.And therefore the shortcoming of this method to be required zinc hydroxide need on-site prepn has produced by product and waste water inevitably.
[2] boric acid-zinc oxide method
2ZnO+6H
3BO
3＝2ZnO·3B
2O
3·3.5H
2O+5.5H
2O
The preparation condition of this method and boric acid-zinc hydroxide method is similar, and has eliminated boric acid-zinc hydroxide method trouble caused, has advantages such as technology is simple, operation is few, product is single, and mother liquor can directly recycle
[3] borate-zincate process
U.S.'s borax and chemical company have been reported more than 10 raw material route with regard to this method in patent, be two routes that use is comparatively general wherein below.
3.5ZnSO
4+3.5Na
2B
4O
7+0.5ZnO+10H
2O＝2(2ZnO·3B
2O
3·3.5H
2O)+3.5Na2SO
4+2H
3BO
3
This method borax, zinc salt raw material are easy to get, and cost is lower, in granularity control, certain advantage are arranged; It is relatively harsher that but the shortcoming of this method is a reaction conditions.Borax is a strong base-weak acid salt, makes system solution show alkalescence, and zinc exists with zinc hydroxide micro-soluble material form, makes replacement(metathesis)reaction speed slow down, and the reaction times prolongs, and has increased energy consumption to a certain extent, has improved product cost.In addition, this method generates boric acid and two kinds of by products of sodium sulfate, two kinds of separation of by-products is come out, and Recycling Mother Solution is used, and treatment process is quite numerous and diverse.
Prove through test of many times; Foaming height also not exclusively is directly proportional with fire endurance, if expanding layer is loose, high more its fire endurance that foams is poor more; Therefore the intensity that increases expanding layer is one of key that improves the fire retardant fire endurance, so the present invention has added an amount of anti-wear agent.Described anti-wear agent is wherein one or more a mixture of graphite, molybdenumdisulphide, wollastonite, polynite, tetrafluoroethylene, silicon-dioxide, titanium oxide.
Toxic gases such as carbon monoxide in the mine fire and hydrogen halide are murderous first reasons.In order to reduce the generating capacity of toxic smog, the present invention has added smog inhibitor, and smog inhibitor commonly used has: white lake, Marinco H, aluminum oxide, lime carbonate, zinc borate, zinc molybdate etc.
Specific embodiment
Embodiment 1
Following examples are in order to further specify the present invention.Umbers all in the example are mass fraction.The title of the raw material among the embodiment and trade names and manufacturer are following:
SE, Zhejiang Juhua Stocks Trading Co. company;
Nickelous hypophosphite, scape chemical industry ltd is expanded in Hubei;
Phosphagel phosphaljel, the prosperous Sheng chemical industry of Shijiazhuang City ltd;
The organo montmorillonite of applicant oneself configuration, concrete steps are partly put down in writing at summary of the invention;
Other are the commercial goods.
The configuration mine use expansion type flame retardant, it is characterized in that each component by mass percentage the proportioning meter be respectively:
100 parts of SE;
50 parts of Hypophosporous Acid, 50 nickel (H
2PO
4)
26H
2O;
20 parts of phosphagel phosphaljels;
20 parts through 12 organic montmorillonoids to OTAC or brometo de amonio processing;
30 parts of smog inhibitors; Be the mixture of white lake and zinc borate, proportioning is 1: 1;
10 parts of thermo-stabilizers, said thermo-stabilizer are thiol methyl tin;
10 parts of trimeric cyanamides;
5 parts of properties-correcting agent, said properties-correcting agent are MBS;
3 parts of processing aids, said processing aid are TEB 3K-ethyl acrylate copolymer;
3 parts of anti-wear agents, described anti-wear agent are the mixture of graphite and molybdenumdisulphide and wollastonite, and blending ratio is 1: 1: 1]
5 parts of oxygenants, oxygenant are potassium permanganate;
Step 1, will to make 20 parts of organic montmorillonoids for use; Said organic montmorillonoid is a proportioning by mass percentage; 100 parts na montmorillonites, the water high speed are left standstill the aqueous dispersions that 24h forms polynite after stirring 1h; Again alkylamine salt and 10 parts of concentrated hydrochloric acid/SPAs of 10 parts are adjusted the even protonated solution of stirring formation in 82 ℃ of water, it is dropwise added in the aqueous dispersions of polynite, and this mixed solution is at room temperature filtered behind 82 ℃ of following high-speed stirring 1.5h; Reduce the concentration of Cl-or Br-then with the zero(ppm) water repeated washing, and use 0.1mol/l AgNO
3Solution check filtrating till do not have a white precipitate; The product of gained will be pulverized with ball mill 82 ℃ of following vacuum-dryings to constant then, and the product of gained is said organo montmorillonite (Organic-MMT).
Step 2, again with 50 parts of Hypophosporous Acid, 50 nickel (H
2PO
4)
26H
2Water-content＜0.2% (wt) is dried, made to O; Pulverize then, make its particle diameter＜35 μ m for use;
Step 3, again with the phosphagel phosphaljel powder, cross 600 mesh sieves, by said ratio get 20 parts for use;
Step 4, take by weighing successively by proportioning again: 100 parts of SE, 30 parts of smog inhibitors; Adopt the mixture of white lake and zinc borate; Proportioning is 1: 1,10 parts thermo-stabilizers, and said thermo-stabilizer is thiol methyl tin, 10 parts of trimeric cyanamides, 5 parts of properties-correcting agent, and said properties-correcting agent is Methyl methacrylate-butadiem-styrene copolymer, 3 parts of processing aids; Said processing aid is TEB 3K-ethyl acrylate copolymer, 3 parts of anti-wear agents; Described anti-wear agent is the mixture of graphite and molybdenumdisulphide and wollastonite, and blending ratio is 1: 1: 1,5 parts oxygenants, and oxygenant is that potassium permanganate is for use;
The all the components of above-mentioned steps one to four gained is put in the Banbury mixer; Temperature is between 150 degree to 200 degree, and rotating speed is 20 to 100 rev/mins, melt blending 5 to 20 minutes; Its main purpose is in mixing process, to make fire retardant and auxiliary agent thorough mixing; Granulation in twin screw extruder machine then, extrusion is provided with vacuum exhaust, processes moulded product with injection moulding machine then.
Wherein the preparation of zinc borate is following:
The boric acid neutralisation
[1] boric acid-zinc hydroxide method
2Zn(OH)
2+6H
3BO
3＝2ZnO·3B
2O
3·3.5H
2O+7.5H
2O
This method drops into reactor drum according to a certain percentage with boric acid and zinc hydroxide, controls certain solid-to-liquid ratio, reacts 5-7h down in 90-100 ℃.The advantage of this route is exactly that the utilization ratio of single, the no three wastes of product, boric acid is higher.And therefore the shortcoming of this method to be required zinc hydroxide need on-site prepn has produced by product and waste water inevitably.
[2] boric acid-zinc oxide method
2ZnO+6H
3BO
3＝2ZnO·3B
2O
3·3.5H
2O+5.5H
2O
The preparation condition of this method and boric acid-zinc hydroxide method is similar, and has eliminated boric acid-zinc hydroxide method trouble caused, has advantages such as technology is simple, operation is few, product is single, and mother liquor can directly recycle
[3] borate-zincate process
U.S.'s borax and chemical company have been reported more than 10 raw material route with regard to this method in patent, be two routes that use is comparatively general wherein below.
3.5ZnSO
4+3.5Na
2B
4O
7+0.5ZnO+10H
2O＝2(2ZnO·3B
2O
3·3.5H
2O)+3.5Na2SO
4+2H
3BO
3
This method borax, zinc salt raw material are easy to get, and cost is lower, in granularity control, certain advantage are arranged; It is relatively harsher that but the shortcoming of this method is a reaction conditions.Borax is a strong base-weak acid salt, makes system solution show alkalescence, and zinc exists with zinc hydroxide micro-soluble material form, makes replacement(metathesis)reaction speed slow down, and the reaction times prolongs, and has increased energy consumption to a certain extent, has improved product cost.In addition, this method generates boric acid and two kinds of by products of sodium sulfate, two kinds of separation of by-products is come out, and Recycling Mother Solution is used, and treatment process is quite numerous and diverse.
When the control spontaneous combustion of coal uses; Use expansion type flame retardant to be diluted to the aqueous solution that concentration is 1.76～4.1wt% in said mine earlier; Adopting foam lance to be sprayed onto needs the zone, coal seam of control spontaneous combustion; Through 30 minutes to one hour, said mine used expansion type flame retardant after lance ejection, all to be covered in the surface, coal seam with foam as carrier, can reach the effect of long-time control spontaneous combustion to this regional coal seam.
Beneficial effect
Fire retardant of the present invention is used for the mine fire prevention, and flame retardant rating all reaches the UL94V-0 level, compares with conventional flame retardant to have the advantage that density is low, the amount of being fuming is few, mass loss rate is little, remaining quality is big of being fuming.Compare result such as following table with the fire retardant effect of other kinds:
The flame retardant effect contrast table of several kinds of fire retardants of table 1
| The fire retardant kind | Flame retardant rating |
| Mg(OH) 2 | NR |
| Mg 093Zn 0.07(OH) 2 | UL94V-1 |
| The application's fire retardant | UL94V-0 |
Embodiment 2
Following examples are in order to further specify the present invention.Umbers all in the example are mass fraction.The title of the raw material among the embodiment and trade names and manufacturer are following:
SE, Zhejiang Juhua Stocks Trading Co. company;
Nickelous hypophosphite, scape chemical industry ltd is expanded in Hubei;
Phosphagel phosphaljel, the prosperous Sheng chemical industry of Shijiazhuang City ltd;
The organo montmorillonite of applicant oneself configuration, concrete steps are partly put down in writing at summary of the invention;
Other are the commercial goods.
The configuration mine use expansion type flame retardant, it is characterized in that each component by mass percentage the proportioning meter be respectively:
100 parts of SE;
50 parts of Hypophosporous Acid, 50 nickel (H
2PO
4)
26H
2O;
20 parts of phosphagel phosphaljels;
20 parts through 12 organic montmorillonoids to OTAC or brometo de amonio processing;
30 parts of smog inhibitors; Be the mixture of Marinco H and zinc molybdate, proportioning is 1: 1;
10 parts of thermo-stabilizers, said thermo-stabilizer are the toxilic acid dibutyl tin;
The mixture of 10 parts of trimeric cyanamide melamine salts and ammonium polyphosphate (APP), its proportioning is 1: 1;
5 parts of properties-correcting agent, said properties-correcting agent are chlorinatedpolyethylene;
3 parts of processing aids, said processing aid are BA-St-TEB 3K-ethyl acrylate copolymer;
3 parts of anti-wear agents, described anti-wear agent are the mixture of graphite and titanium oxide and wollastonite, and blending ratio is 1: 1: 1;
5 parts of oxygenants, oxygenant are potassium permanganate;
Step 1, will to make 20 parts of organic montmorillonoids for use; Said organic montmorillonoid is a proportioning by mass percentage; 100 parts na montmorillonites, the water high speed are left standstill the aqueous dispersions that 24h forms polynite after stirring 1h; Again alkylamine salt and 10 parts of concentrated hydrochloric acid/SPAs of 10 parts are adjusted the even protonated solution of stirring formation in 82 ℃ of water, it is dropwise added in the aqueous dispersions of polynite, and this mixed solution is at room temperature filtered behind 82 ℃ of following high-speed stirring 1.5h; Reduce the concentration of Cl-or Br-then with the zero(ppm) water repeated washing, and use 0.1mol/l AgNO
3Solution check filtrating till do not have a white precipitate; The product of gained will be pulverized with ball mill 82 ℃ of following vacuum-dryings to constant then, and the product of gained is said organo montmorillonite (Organic-MMT).
Step 2, again with 50 parts of Hypophosporous Acid, 50 nickel (H
2PO
4)
26H
2Water-content＜0.2% (wt) is dried, made to O; Pulverize then, make its particle diameter＜35 μ m for use;
Step 3, again with the phosphagel phosphaljel powder, cross 600 mesh sieves, by said ratio get 20 parts for use;
Step 4, take by weighing successively by proportioning again: 100 parts of SE, 30 parts of mixtures for Marinco H and zinc molybdate; Proportioning is 1: 1,10 parts thermo-stabilizers; Said thermo-stabilizer is the mixture of toxilic acid dibutyl tin, 10 parts of trimeric cyanamide melamine salts and ammonium polyphosphate (APP); Its proportioning is 1: 1,5 parts properties-correcting agent; Said properties-correcting agent is chlorinatedpolyethylene, 3 parts of processing aids, and said processing aid is BA-St-TEB 3K-ethyl acrylate copolymer, 3 parts of anti-wear agents, and described anti-wear agent is the mixture of graphite and titanium disulfide and wollastonite; Blending ratio is 1: 1: 1,5 parts oxygenants, and oxygenant is that potassium permanganate is for use;
The all the components of above-mentioned steps one to four gained is put in the Banbury mixer (in the actual production process, can also add 0.2% white oil or add different solvents as required), temperature is between 150 degree to 200 degree; Rotating speed is 20 to 100 rev/mins; Melt blending 5 to 20 minutes, its main purpose are in mixing process, to make fire retardant and auxiliary agent thorough mixing, granulation in twin screw extruder machine then; Extrusion is provided with vacuum exhaust, processes moulded product with injection moulding machine then.
Wherein the preparation of zinc borate is following:
The boric acid neutralisation
[1] boric acid-zinc hydroxide method
2Zn(OH)
2+6H
3BO
3＝2ZnO·3B
2O
3·3.5H
2O+7.5H
2O
This method drops into reactor drum according to a certain percentage with boric acid and zinc hydroxide, controls certain solid-to-liquid ratio, reacts 5-7h down in 90-100 ℃.The advantage of this route is exactly that the utilization ratio of single, the no three wastes of product, boric acid is higher.And therefore the shortcoming of this method to be required zinc hydroxide need on-site prepn has produced by product and waste water inevitably.
[2] boric acid-zinc oxide method
2ZnO+6H
3BO
3＝2ZnO·3B
2O
3·3.5H
2O+5.5H
2O
The preparation condition of this method and boric acid-zinc hydroxide method is similar, and has eliminated boric acid-zinc hydroxide method trouble caused, has advantages such as technology is simple, operation is few, product is single, and mother liquor can directly recycle
[3] borate-zincate process
U.S.'s borax and chemical company have been reported more than 10 raw material route with regard to this method in patent, be two routes that use is comparatively general wherein below.
3.5ZnSO
4+3.5Na
2B
4O
7+0.5ZnO+10H
2O＝2(2ZnO·3B
2O
3·3.5H
2O)+3.5Na2SO
4+2H
3BO
3
This method borax, zinc salt raw material are easy to get, and cost is lower, in granularity control, certain advantage are arranged; It is relatively harsher that but the shortcoming of this method is a reaction conditions.Borax is a strong base-weak acid salt, makes system solution show alkalescence, and zinc exists with zinc hydroxide micro-soluble material form, makes replacement(metathesis)reaction speed slow down, and the reaction times prolongs, and has increased energy consumption to a certain extent, has improved product cost.In addition, this method generates boric acid and two kinds of by products of sodium sulfate, two kinds of separation of by-products is come out, and Recycling Mother Solution is used, and treatment process is quite numerous and diverse.
When the control spontaneous combustion of coal uses; Use expansion type flame retardant to be diluted to the aqueous solution that concentration is 1.76～4.1wt% in said mine earlier; Adopting foam lance to be sprayed onto needs the zone, coal seam of control spontaneous combustion; Through 30 minutes to one hour, said mine used expansion type flame retardant after lance ejection, all to be covered in the surface, coal seam with foam as carrier, can reach the effect of long-time control spontaneous combustion to this regional coal seam.
Beneficial effect
Fire retardant of the present invention is used for the mine fire prevention, and flame retardant rating all reaches the UL94V-0 level, compares with conventional flame retardant to have the advantage that density is low, the amount of being fuming is few, mass loss rate is little, remaining quality is big of being fuming.Compare result such as following table with the fire retardant effect of other kinds:
The flame retardant effect contrast table of several kinds of fire retardants of table 2
| The fire retardant kind | Flame retardant rating |
| Mg(OH) 2 | NR |
| Mg 0.93Zn 0.07(OH) 2 | UL94V-1 |
| The application's fire retardant | UL94V-0 |
What should explain at last is: above embodiment is only in order to explaining technical scheme of the present invention, but not to its restriction; Although with reference to previous embodiment the present invention has been carried out detailed explanation, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of the essence disengaging various embodiments of the present invention technical scheme of relevant art scheme.
Claims (4)
1. a mine is used expansion type flame retardant, it is characterized in that each component by mass percentage the proportioning meter be respectively:
100 parts of SE;
50 parts of Hypophosporous Acid, 50 nickel (H
2PO
4)
26H
2O;
20 parts of phosphagel phosphaljels;
20 parts through 12 organic montmorillonoids to OTAC or brometo de amonio processing;
30 parts of smog inhibitors; Said smog inhibitor is a kind of or any mixture between them in white lake, Marinco H, aluminum oxide, lime carbonate, zinc borate, the zinc molybdate.
10 parts of thermo-stabilizers, said thermo-stabilizer are thiol methyl tin or toxilic acid dibutyl tin or Pb stabilizer or the wherein a kind of or any mixture between them of metallic soap class stablizer;
The mixture of one or more in 10 parts of trimeric cyanamides or trimeric cyanamide melamine salt or ammonium polyphosphate (APP) or phosphinates or melamine pyrophosphate salt (MPP) or the melamine cyanurate (MCA);
5 parts of properties-correcting agent, said properties-correcting agent are MBS or chlorinatedpolyethylene;
3 parts of processing aids, said processing aid are TEB 3K-ethyl acrylate copolymer or BA-St-TEB 3K-ethyl acrylate copolymer.
3 parts of anti-wear agents, described anti-wear agent are wherein one or more mixture of graphite, molybdenumdisulphide, wollastonite, polynite, tetrafluoroethylene, silicon-dioxide, titanium oxide.
5 parts of oxygenants.
2. a kind of mine as claimed in claim 1 is used expansion type flame retardant; It is characterized in that: said organic montmorillonoid is a proportioning by mass percentage; 100 parts na montmorillonites, the water high speed are left standstill the aqueous dispersions that 24h forms polynite after stirring 1h; Again alkylamine salt and 10 parts of concentrated hydrochloric acid/SPAs of 10 parts are adjusted the even protonated solution of stirring formation in 82 ℃ of water, it is dropwise added in the aqueous dispersions of polynite, and this mixed solution is at room temperature filtered behind 82 ℃ of following high-speed stirring 1.5h; Reduce the concentration of Cl-or Br-then with the zero(ppm) water repeated washing, and use 0.1mol/l AgNO
3Solution check filtrating till do not have a white precipitate; The product of gained will be pulverized with ball mill 82 ℃ of following vacuum-dryings to constant then, and the product of gained is said organo montmorillonite (Organic-MMT).
3. use expansion type flame retardant like the described a kind of mine of claim 1-2, it is characterized in that: said properties-correcting agent can also be one or more the mixture in maleimide or maleic anhydride or maleic anhydride grafts and the verivate thereof.
4. use expansion type flame retardant like the described a kind of mine of claim 1-3, it is characterized in that: oxygenant is selected from permanganate, hypochlorite or superoxide.
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|---|---|---|---|
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| CN111253673A (en) * | 2020-03-31 | 2020-06-09 | 界首市通达塑业有限公司 | High-elastic wear-resistant rubber sole material |
| CN114031812A (en) * | 2021-11-23 | 2022-02-11 | 上海聚千新材料发展有限公司 | Nitrogen-phosphorus flame retardant and preparation method thereof |
| CN114230760A (en) * | 2020-09-09 | 2022-03-25 | 深圳斯巴达光电有限公司 | Polyurethane for producing LED lamp strip and preparation method thereof |
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| CN103965563A (en) * | 2013-01-28 | 2014-08-06 | 潘朝宗 | Fireproof fire retardation expandable material |
| CN103232653A (en) * | 2013-05-10 | 2013-08-07 | 苏州工业园区方圆金属制品有限公司 | Polyvinyl chloride laminated board |
| CN103524932A (en) * | 2013-09-30 | 2014-01-22 | 芜湖航天特种电缆厂 | Fog-face fire-retardant polyvinyl chloride electric wire and cable material and preparation method thereof |
| CN103524932B (en) * | 2013-09-30 | 2016-02-24 | 芜湖航天特种电缆厂 | A kind of fog-surface flame-retardant polyvinyl chloride wire cable material and preparation method thereof |
| CN103756462A (en) * | 2014-01-03 | 2014-04-30 | 安徽理工大学 | Novel environment-friendly high molecular stopping agent capable of preventing mine coal from spontaneously combusting |
| CN104436510A (en) * | 2014-12-12 | 2015-03-25 | 袁福德 | Preparation method of ABC dry powder extinguishing agent |
| CN106009581A (en) * | 2016-05-24 | 2016-10-12 | 武汉理工大学 | Intumescent flame retardant enhanced ASA/PC (acrylonitrile styrene acrylate/poly carbonate) alloy and preparation method thereof |
| CN106398052A (en) * | 2016-11-02 | 2017-02-15 | 华北科技学院 | Quaternary ammonium salt modified montmorillonite composite PVC (polyvinyl chloride) flame retardant, flame retardant material and their preparation methods |
| CN109401634A (en) * | 2018-09-03 | 2019-03-01 | 华南理工大学 | Flame-retardant smoke inhibition can ceramic room temperature vulcanized organosilicon sealant and preparation method thereof |
| CN109401634B (en) * | 2018-09-03 | 2020-11-13 | 郭建华 | Flame-retardant smoke-inhibiting ceramizable room temperature vulcanized organosilicon sealant and preparation method thereof |
| CN110003584A (en) * | 2019-04-11 | 2019-07-12 | 安徽集虹材料科技有限公司 | A kind of wear-resisting Masterbatch of antibacterial and preparation method thereof |
| CN111253673A (en) * | 2020-03-31 | 2020-06-09 | 界首市通达塑业有限公司 | High-elastic wear-resistant rubber sole material |
| CN114230760A (en) * | 2020-09-09 | 2022-03-25 | 深圳斯巴达光电有限公司 | Polyurethane for producing LED lamp strip and preparation method thereof |
| CN114031812A (en) * | 2021-11-23 | 2022-02-11 | 上海聚千新材料发展有限公司 | Nitrogen-phosphorus flame retardant and preparation method thereof |
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