CN102040790A - Fireproof polyvinyl acetate emulsion and preparation method thereof - Google Patents
Fireproof polyvinyl acetate emulsion and preparation method thereof Download PDFInfo
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Abstract
The invention relates to a fireproof polyvinyl acetate emulsion and a preparation method thereof. The grain diameter of the main fireproof composition of the fireproof type polyvinyl acetate emulsion, namely the gain diameter of ammonium polyphosphate, is small. Meanwhile, inorganic padding has stronger hydrogen bonding force to polyvinyl acetate or polyvinyl acetate copolymer, and the grains of the inorganic padding are small, which can avoid a series of problems caused by adopting an additional fireproofing agent of the prior art. The fireproof polyvinyl acetate emulsion disclosed by the invention has favorable bond strength, favorable film-forming performance, etc., and is very valuable to be used in the aspects of an indoor and outdoor fireproof coating, a weaving cloth fireproof finishing agent, a fireproof binding agent, and the like. Meanwhile, no harmful substances are produced in the process of production and use of the fireproof polyvinyl acetate emulsion, and the productive process of the fireproof polyvinyl acetate emulsion is simple, and is easy to control.
Description
Technical field
The invention belongs to fire-type polyvinyl acetate (PVA) class emulsion and preparation method thereof technical field, be specifically related to a kind of Halogen high-efficiency fireproof type polyvinyl acetate (PVA) class emulsion and preparation method thereof.
Background technology
From the thirties in 20th century, after organic polymer material entered all respects of national economy every field and people's lives, the mankind began to face new fire threat.Reason is that this class material overwhelming majority is inflammable or combustible.China's 13.3 ten thousand of presence of fire (not containing forest, grassland, army and mine) altogether in 2008, dead 1385 people, injured 684 people, 1,500,000,000 yuan of direct property losss.Therefore, the fire prevention research to macromolecular material has important practical significance.
(polyvinylacetate is called for short PVA to polyvinyl acetate (PVA), PVAc), claims again
Polyvinyl acetate, poly-
Vinyl acetate between to for plastic Resin(vinyl acetate resin) or
The polyvinyl acetate resinThrough radical polymerization, and vinyl acetate is made by acetic acid and acetylene polyvinyl acetate (PVA) by vinyl acetate, and acetic acid can be produced by acetylene again, and polyvinyl acetate (PVA) can be made by acetylene fully in brief.As for acetylene, its available unslaked lime and hard coal (or coke) are made calcium carbide, add water decomposition again and get, and also can decompose and get from hydrocarbon compound such as Sweet natural gas and petroleum exhaust.It serves to show that thus polyvinyl acetate (PVA) initial production raw material sources are extremely abundant.World petroleum resource is deficient step by step at present, and polyvinyl acetate (PVA) will have the development prospect of becoming better and better with its wide raw material sources on market.
Vinyl Acetate Copolymer is generally emulsion form, is the important kind in the adhesive products, mainly processes with glue and Commercial goods labels glue as wood working milky white adhesive, cigarette.In coatings industry, PVAc is as paper finishing composition (bonding, coating), bonding strength is fine, but polyvinyl acetate (PVA) is the same with other a lot of macromolecular materials, mainly formed, belonged to combustible matl, its limiting oxygen index(LOI) (Limit Oxygen Index by C, H, three kinds of elements of O, LOI) be about 19%, be attended by a large amount of black dense smoke and bad smell during burning.These shortcomings of aqueous polyvinyl acetate emulsion make its Application Areas be subjected to considerable restraint.Therefore, the anti-cremate design of carrying out aqueous polyvinyl acetate emulsion has urgent realistic meaning.
Fire prevention to polymer emulsion is studied mainly based on the mode of physical blending, and studying more emulsion is phenylpropyl alcohol (Wan Deli etc., state's outdoor building materials science and technology 2004,25 (4); Chinese patent 200610018703), silicon third (Zheng Genwen etc., Chinese material science and technology and design.2007,3:76), (Wang Qiang prints during chemical industry aminoresin.1997,12:23-25) and (Zheng Chongwei, Shanxi chemical industry 2004,24 (2): 56 such as urea-formaldehyde resin; Chinese patent 200610027427).The fireproofing agent that adopts mostly is the compound system of phosphoric acid salt, polyvalent alcohol and trimeric cyanamide or urea.Trimeric cyanamide, urea and polyvalent alcohol because molecular weight is little, are separated out from mould material in wet environment as fireproofing agent the time easily, make fire-retardant material lose fire resistance.
At present, less relatively based on the fire prevention research of vinyl acetate homopolymerization emulsion or vinyl acetate copolymer emulsion, and mostly be the laboratory study stage.(coatings industry, 2008,38 (6): 46) tentatively inquired into the influence of polynite, find that polynite is having certain effect aspect mechanical property that improves coating and the fire resistance, but flameproof effect has not been clearly such as Liu Junhui to the acrylate and vinyl acetate emulsion fire resistance.This patent is intended to improve the fire resistance of polyvinyl acetate (PVA) class emulsion, and suppress it and in combustion processes, discharge black dense smoke and bad smell, can replenish the blank of Halogen high-efficiency fireproof type polyvinyl acetate (PVA) class emulsion on market, expand the Application Areas and the application market of polyvinyl acetate (PVA) class emulsion.
Summary of the invention
The objective of the invention is problem, a kind of new homopolymerization of fire-type polyvinyl acetate (PVA) or copolymer emulsion are provided at the prior art existence.
Another object of the present invention provides a kind of method for preparing above-mentioned fire prevention emulsion.
Fire-type vinyl acetate provided by the invention homopolymerization or vinyl acetate copolymer emulsion is characterized in that this emulsion is made up of vinyl acetate homopolymer or vinyl acetate copolymer and water, protective colloid, emulsifying agent, phosphorus-nitrogen fireproofing agent and filler.10～60 parts of vinyl acetates, 0～40 part of comonomer, 30～80 parts in water, 0.6～7 part of emulsifying agent, 0～7 part of protective colloid, 10～50 parts of phosphorous-nitrogen compounds, 0.2～10 part of mineral filler in the fire-type polyvinyl acetate (PVA) class emulsion.
Used comonomer is one or more in the soft monomers such as ethyl propenoate, butyl acrylate, n octyl methacrylate, isoprene, dibutyl maleinate, lauryl methacrylate(LMA), amylene, methylvinylether in this emulsion; Used protective colloid is one or more the mixture in polyvinyl alcohol (polymerization degree 500～2400, alcoholysis degree are more than 88% or 88%), polyacrylamide, Walocel MT 20.000PV, the ethyl cellulose etc.; Used phosphorous-nitrogen compounds is the ammonium polyphosphate of the polymerization degree 30～6000; Used mineral filler is any one or more the mixture in wilkinite, diatomite, two oxyhydroxide, polynite, insoluble or indissoluble type oxyhydroxide or the oxide compound etc.Used emulsifying agent is the mixed system of ionic or ionic and nonionic emulsifier.Wherein, mixed emulsifier system intermediate ion type and non-ionic type mass ratio are 1: 10～10: 1.Anionic emulsifier is to be selected from any one or more of positive alkyl sodium sulfate salt, positive mersolates, glycerine single-hard ester acid ester and alkylaryl sulphonate; Cationic emulsifier is to be selected from fatty amine salt, quaternary ammonium salt, tetrahydroglyoxaline, Moroxydine class, the triazine derivative etc. any one or more.Nonionic emulsifier is to be selected from octyl phenol polyoxy vinyl alcohol, nonylphenol polyethylene oxide ether, polysorbate60, tween 80, polysorbas20, class of department 80 and the class of department 65 etc. any one or more.
The method of the above-mentioned fire-type polyvinyl acetate (PVA) of preparation provided by the invention class emulsion is characterized in that the processing step of this method and condition are as follows:
1) 0.6～7 part of emulsifying agent, 0～7 part of protective colloid, 0.2～1 part of mineral filler are joined in 20～60 parts of water, ℃ following stirring and dissolving is 10～60 minutes in room temperature～75;
2) 0.2～3 part of initiator is dissolved in 10～20 parts of water, and 10～60 parts of vinyl acetates and 0～40 part of comonomer are mixed.Under 50～75 ℃, splash into mix monomer and initiator while stirring.Monomer and initiator dripped off at 1.0～3.5 hours;
3) monomer and initiator dripped afterreaction 0.5～1.5 hour, and temperature of reaction system is risen to 80～95 ℃, were incubated 1.0～3.0 hours, were cooled to room temperature, and regulating the pH value is 5～11, discharging;
4) the polyphosphoric acid amine that adds 10～50 parts in the reaction system that is obtained is also added 0～9 part mineral filler as required.System mixed promptly obtain fire-type polyvinyl acetate (PVA) class emulsion.
Selected comonomer is preferably one or more in the soft monomers such as being selected from ethyl propenoate, butyl acrylate, n octyl methacrylate, isoprene, dibutyl maleinate, lauryl methacrylate(LMA), amylene, methylvinylether in this method; Used protective colloid is preferably the polymerization degree 500～2400, and alcoholysis degree is one or more the mixture in polyvinyl alcohol more than 88% or 88% or polyacrylamide, Walocel MT 20.000PV, ethyl cellulose etc.; Used phosphorous-nitrogen compounds is the ammonium polyphosphate of the polymerization degree 30～6000; Used mineral filler is any one or more the mixture in wilkinite, diatomite, two oxyhydroxide, polynite, insoluble or indissoluble type oxyhydroxide or the oxide compound.Used emulsifying agent is the mixed system of ionic or ionic and nonionic emulsifier.Wherein, mixed emulsifier system intermediate ion type and non-ionic type mass ratio are 1: 10～10: 1.Anionic emulsifier is to be selected from any one or more of positive alkyl sodium sulfate salt, positive mersolates, glycerine single-hard ester acid ester and alkylaryl sulphonate; Cationic emulsifier is to be selected from fatty amine salt, quaternary ammonium salt, tetrahydroglyoxaline, Moroxydine class, the triazine derivative etc. any one or more.Nonionic emulsifier is to be selected from octyl phenol polyoxy vinyl alcohol, nonylphenol polyethylene oxide ether, polysorbate60, tween 80, polysorbas20, class of department 80 and the class of department 65 etc. any one or more.
What deserves to be explained is aspects such as the resulting fire-type polyvinyl acetate (PVA) of step 4) class emulsion can be directly used in the indoor and outdoor facing fire retardant coating, the fire-resistant finish agent of weaving cotton cloth, fire prevention tackiness agent in addition.
Compared with the prior art the present invention has the following advantages:
1, owing to not halogen-containing component in the fire-type polyvinyl acetate (PVA) class emulsion of the present invention's preparation, thereby prepare this fire-type polyvinyl acetate (PVA) class emulsion and this fire-type polyvinyl acetate (PVA) class emulsion does not in use all have the Halogen gas release, the injury of particularly in combustion processes, having avoided obnoxious flavour to discharge pollution on the environment and human body is caused.
2, because the fireproofing agent price of adding in the fire-type polyvinyl acetate (PVA) class emulsion of the present invention's preparation is more much lower than polymer base material, and the particle diameter of fireproofing agent is suitable with the latex particle particle diameter, and the fireproofing agent flameproof effect is good, addition is little, has avoided the influence of the introducing of fireproofing agent to stability of emulsion when reducing the emulsion cost significantly.
3, because the present invention has introduced inorganic particulate in polyvinyl acetate (PVA) class emulsion polymerization process, this inorganic particulate can partly enter in the latex particle, being aggregated thing in the monomer polymerization process coats, can improve the interface compatibility between vinyl acetate homopolymer or vinyl acetate copolymer and main body fireproofing agent to a certain extent, thereby can reduce because of adding fireproofing agent to the negative impact that material mechanical performance brings, guaranteed the required mechanical property of material application.Moreover, after in emulsion polymerization process, introducing two oxyhydroxides or polynite of laminate structure, partial monosomy enters between the layered inorganic particle layer in the pre-emulsion process, in polymerization process, directly reach the intercalation packaging assembly, make material behind the emulsion film forming for being the spacial framework of cross-linking set like this with the mineral filler.The hydroxyl of two oxyhydroxides or polynite laminate can also form very strong hydrogen bond between polyvinyl acetate homopolymers or copolymer molecule, for the mechanical property of material is made contributions.
4, because the fire-type polyvinyl acetate (PVA) class latex composite compounding of the present invention's preparation has the inorganic filler components that can produce the fire prevention synergistic effect, thereby can not only make the addition of fireproofing agent less, but also can on the basis of improving the emulsion fire resistance, not influence the various performances of emulsion inherent.
5, fire-type polyvinyl acetate (PVA) class emulsion provided by the invention is in combustion processes, because main body fireproofing agent wherein can effectively promote vinyl acetate homopolymer or vinyl acetate copolymer to be cross-linked into charcoal under the katalysis of filler, and compact carbon layer can play the effect of fine heat insulation, oxygen barrier, thereby can hinder or delay the burning of material inside, make material present good fire line.
6, the method for preparing fire-type polyvinyl acetate (PVA) class emulsion provided by the invention is simple, and technical maturity is easy to control.
Embodiment
Below by embodiment the present invention is specifically described; be necessary to be pointed out that at this following examples only are used for that the invention will be further described; can not be interpreted as limiting the scope of the invention; the person skilled in the art in this field makes some nonessential improvement and adjustment according to the invention described above content to the present invention, still belongs to protection domain of the present invention.
Embodiment 1
0.3 part of sodium lauryl sulphate, 0.3 part of octyl phenol polyoxy ether (OP-10), 0.2 part of two oxyhydroxide are added in 60 parts of water and stirred at ambient temperature 10 minutes.0.2 part Potassium Persulphate is dissolved in 20 parts of water, and 10 parts of vinyl acetates and 10 parts of butyl acrylates are mixed.Under 68 ℃, splash into mix monomer and initiator while stirring.Monomer and initiator dripped off at 1.0 hours.Monomer and initiator drip 68 ℃ of reactions of back constant temperature 0.5 hour, and temperature of reaction system is risen to 80 ℃, and insulation reaction 1.0 hours is cooled to room temperature, and regulating the pH value is 10, discharging.10 parts of polymerization degree of adding are 30 ammonium polyphosphate in the reaction system that is obtained, and system is mixed, and obtain the fire-type polyvinyl acetate copolymerization emulsion.
Embodiment 2
1 part of sodium laurylsulfonate, 2 parts of Tween-60s, 0.5 part of magnesium hydroxide and 6 parts of Walocel MT 20.000PVs (earlier solvent) are added in 20 parts of water and stirred at ambient temperature 20 minutes.2.5 parts ammonium persulphates are dissolved in 15 parts of water, and 20 parts of vinyl acetates and 40 parts of ethyl propenoates are mixed.Under 50 ℃, splash into mix monomer and initiator while stirring.Monomer and initiator dripped off at 2.5 hours.Monomer and initiator drip 50 ℃ of reactions of back constant temperature 1.0 hours, and temperature of reaction system is risen to 90 ℃, and insulation reaction 1.5 hours is cooled to room temperature, and regulating the pH value is 11, discharging.In the reaction system that is obtained, add 20 parts of polymerization degree and be 100 ammonium polyphosphate and 1 part magnesium hydroxide, system is mixed, obtain the fire-type polyvinyl acetate copolymerization emulsion.
Embodiment 3
1 part of octadecyl trimethylammonium bromide, 3 parts of tween 20s, 0.3 part of polynite and 5 parts of polyvinyl alcohol-0588 (earlier solvent) are added in 30 parts of water under 50 ℃ of conditions, stirred 30 minutes.2 parts ammonium persulphates are dissolved in 10 parts of water, and 30 parts of vinyl acetates and 25 parts of n octyl methacrylates are mixed.Under 50 ℃, splash into mix monomer and initiator while stirring.Monomer and initiator dripped off at 2.0 hours.Monomer and initiator drip 50 ℃ of reactions of back constant temperature 1.5 hours, and temperature of reaction system is risen to 85 ℃, and insulation reaction 1.5 hours is cooled to room temperature, and regulating the pH value is 5, discharging.The polymerization degree that adds 50 parts in the reaction system that is obtained is 200 ammonium polyphosphate and 2 parts polynite, and system is mixed, and obtains the fire-type polyvinyl acetate copolymerization emulsion.
Embodiment 4
0.2 part of hexadecyl benzene sulfonic acid sodium salt, 1.8 parts of tween-80s, 0.4 part of zinc oxide and 2 parts of polyvinyl alcohol-2499 (earlier solvent) are added in 40 parts of water under 40 ℃ of conditions, stirred 40 minutes.The redox initiation system of 1 part Potassium Persulphate and sodium bisulfite composition is dissolved in 20 parts of water.Under 40 ℃, splash into 40 parts of vinyl acetates and initiator while stirring.Monomer and initiator dripped off at 2.0 hours.Monomer and initiator drip 40 ℃ of reactions of back constant temperature 1.0 hours, and temperature of reaction system is risen to 90 ℃, and insulation reaction 2.0 hours is cooled to room temperature, and regulating the pH value is 7, discharging.The polymerization degree that adds 20 parts in the reaction system that is obtained is 50 ammonium polyphosphate and 3 parts polynite, and system is mixed, and obtains fire-type polyvinyl acetate (PVA) homopolymerization emulsion.
Embodiment 5
6 parts of sodium stearate, 1 part of Si Ban-60,1.0 part titanium dioxide and 4 parts of polyvinyl alcohol-1799 (earlier solvent) are added in 25 parts of water under 72 ℃ of conditions, stirred 50 minutes.2.5 parts Potassium Persulphates are dissolved in 15 parts of water, and 50 parts of vinyl acetates and 10 parts of methylvinylethers are mixed.Under 72 ℃, splash into mix monomer and initiator while stirring.Monomer and initiator dripped off at 3.0 hours.Monomer and initiator drip 72 ℃ of reactions of back constant temperature 1.0 hours, and temperature of reaction system is risen to 95 ℃, and insulation reaction 1.0 hours is cooled to room temperature, and regulating the pH value is 9, discharging.The polymerization degree that adds 40 parts in the reaction system that is obtained is 500 ammonium polyphosphate and 9 parts titanium dioxide, and system is mixed, and obtains the fire-type polyvinyl acetate copolymerization emulsion.
Embodiment 6
5.4 parts of tetrahydroglyoxalines, 0.6 part of nonylphenol polyethylene oxide ether (TX-30), 1.0 parts of wilkinites and 7 parts of Natvosols (earlier solvent) are added in 25 parts of water under 70 ℃ of conditions, stirred 20 minutes.2 parts potassium permanganate and 1 oxalic acid are dissolved in 15 parts of water.Under 70 ℃, splash into 60 parts of Vinyl Acetate Monomers and initiator while stirring.Monomer and initiator dripped off at 3.5 hours.Monomer and initiator drip 70 ℃ of reactions of back constant temperature 1.5 hours, and temperature of reaction system is risen to 90 ℃, and insulation reaction 3.0 hours is cooled to room temperature, and regulating the pH value is 10, discharging.The polymerization degree that adds 20 parts in the reaction system that is obtained is 2000 ammonium polyphosphate and 8 parts titanium dioxide, and system is mixed, and obtains fire-type polyvinyl acetate (PVA) homopolymerization emulsion.
Embodiment 7
0.5 part of Si Ban-60,5.5 part Si Ban-20,0.8 part diatomite and 4 parts of polyvinyl alcohol-0588 (first solvent) are added in 37 parts of water and stirred 60 minutes under 60 ℃ of conditions.The mixed system of 1.5 parts hydrogen peroxide and S-WAT composition is dissolved in 18 parts of water, and 20 parts of vinyl acetates and 20 parts of dibutyl maleinates are mixed.Under 60 ℃, splash into mix monomer and initiator while stirring.Monomer and initiator dripped off at 2.0 hours.Monomer and initiator drip 72 ℃ of reactions of back constant temperature 0.5 hour, and temperature of reaction system is risen to 85 ℃, and insulation reaction 1.5 hours is cooled to room temperature, and regulating the pH value is 6, discharging.The polymerization degree that adds 50 parts in the reaction system that is obtained is 3000 ammonium polyphosphate and 7 parts titanium dioxide, and system is mixed, and obtains the fire-type polyvinyl acetate copolymerization emulsion.
Embodiment 8
2 parts of cetyl trimethylammonium bromides, 0.4 part of diatomite, 0.4 part of polynite and 4 parts of polyacrylamides (earlier solvent) are added in 38 parts of water under 70 ℃ of conditions, stirred 40 minutes.2.0 parts ammonium persulphates are dissolved in 12 parts of water, and 20 parts of vinyl acetates and 30 parts of lauryl methacrylate(LMA)s are mixed.Under 70 ℃, splash into mix monomer and initiator while stirring.Monomer and initiator dripped off at 2.5 hours.Monomer and initiator drip 70 ℃ of reactions of back constant temperature 1.0 hours, and temperature of reaction system is risen to 90 ℃, and insulation reaction 1.0 hours is cooled to room temperature, and regulating the pH value is 7, discharging.The polymerization degree that adds 10 parts in the reaction system that is obtained is 6000 ammonium polyphosphate, 2.5 parts of diatomite and 2.5 parts of polynites, and system is mixed, and obtains the fire-type polyvinyl acetate copolymerization emulsion.
Comparative Examples
1 part of octadecyl trimethylammonium bromide, 3 parts of tween 20s and 5 parts of polyvinyl alcohol-0588 (earlier solvent) are added in 30 parts of water under 50 ℃ of conditions, stirred 30 minutes.2 parts ammonium persulphates are dissolved in 10 parts of water, and 30 parts of vinyl acetates and 25 parts of n octyl methacrylates are mixed.Under 50 ℃, splash into mix monomer and initiator while stirring.Monomer and initiator dripped off at 2.0 hours.Monomer and initiator drip 50 ℃ of reactions of back constant temperature 1.5 hours, and temperature of reaction system is risen to 85 ℃, and insulation reaction 1.5 hours is cooled to room temperature, and regulating the pH value is 11, discharging.
Claims (10)
1. homopolymerization of class fire-type vinyl acetate breast or copolymer emulsion, it is characterized in that: it is made up of with phosphorous-nitrogen compounds and mineral filler polyvinyl acetate (PVA) or vinyl acetate copolymer, wherein phosphorous-nitrogen compounds is the main body fireproofing agent, and mineral filler is the fire prevention synergist.
2. fire-type polyvinyl acetate (PVA) class emulsion according to claim 1 is characterized in that this emulsion is made up of vinyl acetate homopolymer or multipolymer and water, protective colloid, emulsifying agent, phosphorus-nitrogen fireproofing agent and mineral filler; 10～60 parts of vinyl acetates, 0～40 part of comonomer, 30～80 parts in water, 0.2～3 part of initiator, 0.6～7 part of emulsifying agent, 0～7 part of protective colloid, 10～50 parts of phosphorous-nitrogen compounds, 0.2～10 part of mineral filler in the fire-type polyvinyl acetate (PVA) class emulsion.
3. fire-type polyvinyl acetate (PVA) class emulsion according to claim 1; it is characterized in that: emulsifying agent was 0.6～7 part when polyvinyl acetate (PVA) class emulsion was synthetic; initiator is 0.2～3 part; vinyl acetate is that 10～60 parts, comonomer are 0～40 part; protective colloid is that 0～7 part, water are 30～80 parts, and introduces 0.2～1 part of mineral filler before the letex polymerization of vinyl acetate class begins the time.
4. according to claim 2 or 3 described fire-type polyvinyl acetate (PVA) class emulsions, it is characterized in that, described emulsifying agent is the mixed system of ionic or ionic and nonionic emulsifier, and wherein, blending emulsifiers intermediate ion type and non-ionic type mass ratio are 1: 10～10: 1; Anionic emulsifier is to be selected from one or more of positive alkyl sodium sulfate salt, positive mersolates, glycerine single-hard ester acid ester and alkylaryl sulphonate; Cationic emulsifier is to be selected from fatty amine salt, quaternary ammonium salt, tetrahydroglyoxaline, Moroxydine class, the triazine derivative one or more; Nonionic emulsifier is to be selected from octyl phenol polyoxy vinyl alcohol, nonylphenol polyethylene oxide ether, polysorbate60, tween 80, polysorbas20, class of department 80 and the class of department 65 one or more.
5. fire-type polyvinyl acetate (PVA) class emulsion according to claim 2, it is characterized in that, described initiator is any in water miscible peroxide or the water soluble oxidized reduction system, and wherein water-soluble peroxide initiator is any in Potassium Persulphate, the ammonium persulphate; Oxygenant is any in hydrogen peroxide, persulphate, hydroperoxide, tetravalent cerium salt, the potassium permanganate in the water soluble oxidized reduction system; Reductive agent is Fe
2+, Cu
+, NaHSO
3, Na
2SO
3, Na
2SO
3, in the alcohol, amine, oxalic acid, glucose any.
6. according to claim 2 or 3 described fire-type polyvinyl acetate (PVA) class emulsions, it is characterized in that described comonomer is one or more in ethyl propenoate, butyl acrylate, n octyl methacrylate, dibutyl maleinate, lauryl methacrylate(LMA), isoprene, amylene, the methylvinylether.
7. according to claim 2 or 3 described fire-type polyvinyl acetate (PVA) class emulsions, it is characterized in that described protective colloid is one or more a mixture of polyvinyl alcohol, polyacrylamide, Walocel MT 20.000PV, ethyl cellulose; The polyvinyl alcohol polymerization degree is 500～2400, and alcoholysis degree is more than 88% or 88%.
8. according to claim 2 or 3 described fire-type polyvinyl acetate (PVA) class emulsions, it is characterized in that described mineral filler is selected from any one or more in two oxyhydroxides, wilkinite, diatomite, polynite, insoluble or indissoluble shaped metal oxyhydroxide and insoluble or the indissoluble shaped metal oxide compound.
9. fire-type polyvinyl acetate (PVA) class emulsion according to claim 1 is characterized in that, wherein contains 10～50 parts of polymerization degree and be 30～6000 ammonium polyphosphate; Contain any one or more the mixture in the two oxyhydroxides of 0.2～10 part be selected from, wilkinite, diatomite, polynite, insoluble or indissoluble shaped metal oxyhydroxide and insoluble or the indissoluble shaped metal oxide compound.
10. method for preparing the described fire-type polyvinyl acetate (PVA) of claim 1 class emulsion is characterized in that the processing step of this method and condition are as follows:
1) 0.6～7 part of emulsifying agent, 0～7 part of protective colloid, 0.2～1 part of mineral filler are joined in 20～60 parts of water, ℃ following stirring and dissolving is 10～60 minutes in room temperature～75;
2) 0.2～3 part of initiator is dissolved in 10～20 parts of water, and 10～60 parts of vinyl acetates and 0～40 part of comonomer are mixed, under 50～75 ℃, splash into mix monomer and initiator while stirring, monomer and initiator dripped off at 1.0～3.5 hours;
3) monomer and initiator dripped back continuation reaction after 0.5～1.5 hour, and reaction system is warming up to 80～95 ℃, and insulation reaction is 1～3 hour under the agitation condition, is cooled to room temperature, and regulating the pH value is 5～12, discharging.
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| CN105273665A (en) * | 2015-11-27 | 2016-01-27 | 济南昊泽环保科技有限公司 | Waterborne adhesive and preparation method thereof |
| CN103333444B (en) * | 2013-07-03 | 2016-02-24 | 苏州靖羽新材料有限公司 | A kind of shock resistance high-temperature resistance plastice containing polyvinyl acetate |
| CN105482021A (en) * | 2016-01-19 | 2016-04-13 | 广东衡光化工有限公司 | Vac-veova emulsion with excellent comprehensive performance and preparation method of related coating |
| CN107337758A (en) * | 2016-11-23 | 2017-11-10 | 佛山市传化富联精细化工有限公司 | A kind of water-fastness environmental-friendly stiffening agent and preparation method thereof |
| CN107641387A (en) * | 2017-10-12 | 2018-01-30 | 山东七维新材料有限公司 | A kind of aqueous fire-proof coating and preparation method thereof |
| CN108559223A (en) * | 2018-05-10 | 2018-09-21 | 重庆新康意安得达尔新材料有限公司 | A kind of polymerized emulsion and preparation method thereof |
| CN109943164A (en) * | 2019-01-25 | 2019-06-28 | 京润矿安科技(北京)有限公司 | A kind of sprayed on material and preparation method thereof suitable for coal mine down-hole tunnel |
| CN110003742A (en) * | 2019-03-27 | 2019-07-12 | 广州市鑫沁贸易有限公司 | A kind of preparation method for removing the aqueous super-thin steel structure fireproof coating of formaldehyde |
| CN114525089A (en) * | 2022-02-21 | 2022-05-24 | 连云港昌瑞科技有限公司 | Environment-friendly flame-retardant cigarette adhesive and preparation method thereof |
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| CN102391795A (en) * | 2011-09-26 | 2012-03-28 | 湖南中烟工业有限责任公司 | Acidic flame-retardant adhesive for automatically extinguishing cigarettes and application method |
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| CN107641387B (en) * | 2017-10-12 | 2020-04-28 | 山东七维新材料有限公司 | Water-based fireproof coating and preparation method thereof |
| CN108559223A (en) * | 2018-05-10 | 2018-09-21 | 重庆新康意安得达尔新材料有限公司 | A kind of polymerized emulsion and preparation method thereof |
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