CN105566670B - Aqueous-phase suspending comminution granulation based on the fire-retardant expandable polystyrene (EPS) bead of deposed polystyrene material preparation gradient and products thereof - Google Patents
Aqueous-phase suspending comminution granulation based on the fire-retardant expandable polystyrene (EPS) bead of deposed polystyrene material preparation gradient and products thereof Download PDFInfo
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Abstract
The invention belongs to the high-valued recycling fields of waste polystyrol foam material, and in particular to a kind of aqueous-phase suspending comminution granulation based on the fire-retardant expandable polystyrene (EPS) bead of deposed polystyrene material preparation gradient and products thereof.It forms oil phase with inorganic organic gradient cooperative flame retardant thermal-insulating system, organic solvent and deposed polystyrene material, Aqueous dispersions medium is formed with surfactant, inorganic organic synergistic suspending agent and deionized water, under mechanical agitation, aqueous-phase suspending granulation makes oil phase drop, and steadily suspended dispersed is in an aqueous medium, heating steams the curing that organic solvent realizes gradient flame retardant polystyrene beads, and gradient fire retardant polystyrene thermal insulation board is obtained through pentane filling and foaming.For the present invention using waste and old polystyrol as raw material, physical recovering method simultaneously prepares the fire-retardant expandable polystyrene (EPS) bead of gradient, waste utilization, while improves its gradient flame retardant property and heat insulation, organic solvent can be recycled, environmentally friendly, is easy to industrialized production.
Description
Technical field
The invention belongs to the high-valued recycling fields of waste polystyrol foam material, and in particular to one kind is based on useless polyphenyl
Vinyl material prepares aqueous-phase suspending comminution granulation of the fire-retardant expandable polystyrene (EPS) bead of gradient and products thereof.
Background technology
Polystyrol foam material (Expanded polystyrene abbreviation EPS) is by steaming by expandable polystyrene
Vapour foaming obtains, and has excellent adiabatic heat-insulation, sound insulation, shockproof, light, ageing-resistant and corrosion-resistant etc. performances, extensively
For building exterior wall heat preserving field and packaging industry.EPS products are non-degradable, without putrefaction, typically disposable, tight after discarding
Heavily contaminated environment, post processing cost height and complex process.Therefore, the resource recycling and height of waste polystyrol foam material
Value, which recycles, has very important society, environment and economic benefit.
National house and town and country construction portion, national quality supervision and check quarantine general bureau, which combine, has issued national standard《Building
Design fire safety rules》GB50016~2014 were implemented from 1 day May in 2015, this anti-flammability to architecture exterior wall insulating materials
Higher requirement can be proposed.At present, the anti-flammability of polystyrol foam material mainly adds organic halogen containing flame-retardant, organic
Fire retardant effect is good, and fire retardant, which decomposes, when playing fire retardation generates a kind of non-ignitable hydrogen halide, dilution oxygen and
A kind of barrier property protective film is formed in polymer surfaces, the chain reaction for inhibiting burning carries out.But hydrogen halide has toxicity,
Once fire occurs, the people to die in fire is many times because breathing is to toxic gas death by suffocation rather than is scorched to death.
Increase organic fire-retardant dosage by excessive come to further improve the way of the anti-flammability of polystyrol foam material be EPS industries
It does not advocate, not only increases production cost, but also with toxicity ruins the environment.With reference to inorganic combustion inhibitor nontoxic property and
The high flame retardant of organic fire-retardant can reduce the use of organic fire-retardant using inorganic-organic compound flame retardant to a certain extent
It measures and improves flame retardant effect, at present, research inorganic-organic hybrid fire retardant systems are a big main flow directions of flame retardant area.
At present, the EPS that gives up is recycled mainly to be recycled using solvent method, as Chinese invention patent CN100335539C is disclosed
A kind of method of solvent reclamation recycling waste polystyrene foam plastic, using citrus seed oil dissolved polystyrene foam, adds in orange
For the precipitating reagents such as 1~5 times of alcohols of oil volume or ethers through vacuum filtration, the polystyrene after filtering adds in orange oil body again
1~5 times of long-pending alcohols or ethers precipitating reagent carry out second and precipitate, and are filtered by vacuum to obtain irregular polystyrene group again
Aggressiveness takes out filtered solution and adds in isometric water extraction twice, and being eventually adding auxiliary agent makes solvent and precipitating reagent separated, returns
Solvent is received, which uses Nantural non-toxic solvent citrus seed oil, and citrus seed oil is of high cost, and recovery process is extremely complex, it is necessary to add in alcohol
Class or ethers precipitating reagent and auxiliary agent distill extremely complex difficult realization, and cost recovery is higher, and obtained regenerated polystyrene is
Irregular aggregate, and performance and added value without improving polystyrene, are unfavorable for industrial applications, such as follow-up profit
With, it is necessary to through melting extrusion technique and cutting prilling.Chinese invention patent CN101230152B discloses a kind of useless polyphenyl
The preparation method of ethylene micron order soccer star's particle, waste old polystyrene foamed plastic is dissolved in organic solvent formed it is organic
Phase, then organic phase and the water dissolved with surfactant are mixed, by mechanical agitation with adding in surfactant high speed shear
Emulsification forms microemulsion, then microemulsion is added in precipitating reagent, and by relenting, precipitating reagent synergistic effect prepares micron order ball
Star solid particle, the invention prepare micron polystyrene by the way that microemulsion is added in precipitating reagent, and the precipitating reagent used is
The solvent to dissolve each other with organic solvent and water although having recycled micron polystyrene, generates a large amount of water, has in the invention
The mixed solution of solvent and precipitating reagent is difficult to separate, and does not mention and how to handle these waste liquids, is solving waste and old polystyrol
Secondary pollution is brought while pollution again, cost is higher, and what is obtained is 9~120 microns of polystyrene particle, is not had
Its new performance is assigned, also without application value.Foregoing invention technology simply recycles polystyrene material, and of high cost, technique is multiple
It is miscellaneous, secondary pollution is generated, does not assign recycling polystyrene material new function and performance, product is nor the pearl of mm size
Grain, does not improve the added value of deposed polystyrene resource recycling, and application prospect is remote, is unfavorable for industrialization promotion with answering
With.
The content of the invention
It is fire-retardant based on deposed polystyrene material preparation gradient in view of the deficiencies of the prior art, the present invention provides one kind
Aqueous-phase suspending comminution granulation of expandable polystyrene (EPS) bead and products thereof.Method is with lipophile inorganic combustion inhibitor, organic fire-retardant
Inorganic-organic gradient cooperative flame retardant thermal-insulating system, organic solvent and deposed polystyrene material composition oil phase with insulation agent composition,
Aqueous dispersions medium is formed with surfactant, inorganic-organic synergy suspending agent and deionized water, on mechanical stirring, surface
Under activating agent and inorganic-organic synergy suspending agent collective effect, aqueous-phase suspending granulation makes oil phase drop steadily be dispersed in suspension within
In aqueous media, it is warming up to organic solvent boiling temperature and steams the curing that organic solvent realizes gradient flame retardant polystyrene beads,
That is what the curing of the distillation of organic solvent and gradient flame retardant polystyrene beads was synchronously realized, then, impregnate and prepare in pentane
The fire-retardant expandable polystyrene bead of gradient is obtained, foaming processing can obtain gradient fire retardant polystyrene thermal insulation board.
The purpose of the present invention is what is be achieved through the following technical solutions：
A kind of aqueous-phase suspending comminution granulation based on the fire-retardant expandable polystyrene (EPS) bead of deposed polystyrene material preparation gradient,
Comprise the following steps：
1) inorganic-organic gradient cooperative flame retardant thermal-insulating system is built
The modification of 1a) inorganic fire-retarded-thermal-insulating system
100~400ml of deionized water is sequentially added in a reservoir, and 1.0~3.0g of polyvinylpyrrolidone after dissolving, adds
Enter 2.0~4.0g of nano-sized magnesium hydroxide, 2.0~4.0g of nano-aluminum hydroxide, 2.0~4.0g of nano-zinc borate, ammonium polyphosphate 2.0
~4.0g, 2.0~4.0g of hydrotalcite, 2.0~4.0g of insulation agent, 5~15min of ultrasonic disperse, mechanical agitation, rotating speed 150~
350rpm, heating water bath are warming up to 60~85 DEG C, add in 1.0~4.0g hydrophobic modification agent, react 0.5~1.5h, are taken out after cooling
Filter and simultaneously washed with ethyl alcohol, obtained after dry loose shape lipophile it is inorganic fire-retarded-thermal-insulating system.
The hydrophobic modification agent is any one in oleic acid, polyethylene glycol phosphate or polypropylene glycol phosphate.
The insulation agent is superfine graphite, and powder footpath is 0.5~10um, and graphite has typical infrared radiation reflecting
The effect of, can effective reflective thermal radiation, change the direction of heat transfer, improve the heat insulation effect of material.
1b) the preparation of inorganic-organic gradient cooperative flame retardant thermal-insulating system
It is 3 by weight:1, weighing step 1a) lipophile for preparing is inorganic fire-retarded-organic resistance of thermal-insulating system and equivalent
It fires agent to add in dry-powder mixer, 15~50rpm of drum rotation speed, 5~10min of incorporation time can be uniformly mixed, is loose
Shape powder obtains inorganic-organic gradient cooperative flame retardant~thermal-insulating system.
The organic fire-retardant is compound for any one in hexabromocyclododecane or deca-BDE or both
2) aqueous-phase suspending comminution granulation prepares the fire-retardant expandable polystyrene (EPS) bead of gradient
2a) organic phase：100~200ml of organic solvent is added in four round flask, adds in inorganic-organic gradient association
With fire-retardant~1.0~8.0g of thermal-insulating system, mechanical agitation is uniformly dispersed, and then adds in deposed polystyrene 15~80g of material, dissolving
5~20min of ultrasonic disperse afterwards makes inorganic-organic gradient cooperative flame retardant thermal-insulating system be uniformly dispersed in polystyrene solution, obtains
To organic phase.
The organic solvent is any one in ethyl acetate or chloroform；
The deposed polystyrene material is arbitrary in waste polystyrol foam material or deposed polystyrene injected plastics material
It is a kind of；
2b) water phase：In the flask of overhead type mechanical agitator and distilling apparatus is installed, addition deionized water 150~
500ml and mass concentration are 0.1~0.5% 1.0~10.0ml of aqueous surfactant solution, are added inorganic by 0.1~1.0g
The inorganic-organic that suspending agent and the polymer suspension agent aqueous solution that 4.0~10.0ml mass concentrations are 2.0~6.0% form increases
Suspending agent is imitated, 5~10min of mechanical agitation obtains water phase.
The surfactant is selected from anionic surfactant sodium dodecylbenzene sulfonate, anion surfactant ten
Dialkyl sulfonates, nonionic surfactant nonylphenol polyoxyethylene ether or nonionic surfactant octylphenol polyethylene ethylene oxide
Any one in ether.
In the inorganic-organic synergy suspending agent, Inorganic suspending agent is tricalcium phosphate, barium sulfate, talcum powder or kaolin
In any one；Polymer suspension agent for hydroxyethyl cellulose, polyacrylate, polyvinyl alcohol, polyvinylpyrrolidone,
Any one in carboxymethyl cellulose, gelatin or cellulose ether.
2c) aqueous-phase suspending is granulated：By step 2a) the obtained organic phase is transferred to step 2b) obtain it is described
In water phase, mechanical agitation rotating speed is 150~350rpm, in surfactant, inorganic-organic synergy suspending agent and mechanical agitation three
Under recast is used, organic phase steadily in an aqueous medium, realize that aqueous-phase suspending is granulated, be warming up to organic solvent boiling point by suspended dispersed
Temperature steams the curing that organic solvent realizes gradient flame retardant polystyrene beads, that is, prepares gradient flame retardant polystyrene beads.
2d) foaming agent impregnates：By step 2c) described in gradient flame retardant polystyrene beads be put into pentane foaming agent and soak
To get to the fire-retardant expandable polystyrene (EPS) bead of gradient after stain.
2e) pre- hair shaping：The fire-retardant expandable polystyrene (EPS) bead of gradient, which pressurizes to send out to be molded in advance through vapor, obtains gradient association
With fire retardant polystyrene heat insulating board.
The present invention also provides the gradient fire retardant polystyrene heat insulating boards being prepared according to the above method.
Gradient fire retardant polystyrene heat insulating board prepared by the present invention, due to being with the addition of the collaboration resistance of inorganic-organic gradient
Thermal-insulating system is fired, inorganic-organic fire retardant each plays flame retardant efficiency in different gradient temperatures, and insulation agent graphite powder has piece
Shape structure, can starvation and heat transfer, there is good flame retardant property, realize cooperative flame retardant synergy purpose, it is useless in recycling
Its gradient flame retardant property is assigned while polystyrene material.In addition, it is added in inorganic-organic gradient cooperative flame retardant thermal-insulating system
There is the superfine graphite powder of the heat-insulated factor, graphite powder excellent reflection infrared ray characteristic causes gradient fire retardant polystyrene to foam
Material has preferable heat preservation and insulation, and therefore, the present invention prepares gradient fire retardant polystyrene expanded material, has excellent resistance
Performance and heat insulation effect are fired, realizes the recycling of deposed polystyrene material and the double goal of high-valued recycling, for
White foam garbage problem is solved to have very important significance.The invention is physical recovering method technique, and process is simple, You Jirong
Agent can be recycled, at low cost, and the fire-retardant expandable polystyrene (EPS) bead granular diameter of gradient prepared by the recycling of aqueous-phase suspending comminution granulation is equal
One, its flame retardant property and heat preservation and insulation can be improved, it is environmentally friendly, it is easy to industrialized production and application.
Description of the drawings
Fig. 1 is the optics for the fire-retardant expandable polystyrene (EPS) bead of gradient that the preparation method provided according to the present invention obtains
Photo.
Fig. 2 is the light that the preparation method provided according to the present invention obtains gradient cooperative flame retardant polystyrene heat insulating board
Learn photo.
Specific embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and illustrated embodiment is served only for explaining the present invention,
It is not intended to limit the scope of the present invention.
Embodiment 1
1) inorganic-organic gradient cooperative flame retardant thermal-insulating system is built
The modification of 1a) inorganic fire-retarded-thermal-insulating system
Deionized water 150ml, polyvinylpyrrolidone 1.2g are sequentially added in a reservoir, after dissolving, add in nanometer hydrogen-oxygen
Change magnesium 2.0g, nano-aluminum hydroxide 2.0g, nano-zinc borate 2.0g, ammonium polyphosphate 2.0g, hydrotalcite 2.0g, average grain diameter 5um
Graphite insulation agent 2.0g, ultrasonic disperse 8min, mechanical agitation, rotating speed 180rpm, heating water bath is warming up to 73 DEG C, adds in 2.0g
Hydrophobic modification agent polyethylene glycol phosphate reacts 1.0h, filters after cooling and is washed with ethyl alcohol, and loose shape parent is obtained after dry
Oiliness is inorganic fire-retarded-thermal-insulating system.
1b) the preparation of inorganic-organic gradient cooperative flame retardant thermal-insulating system
It is 3 by weight:1, weighing step 1a) lipophile for preparing is inorganic fire-retarded-organic resistance of thermal-insulating system and equivalent
Agent hexabromocyclododecane is fired to add in dry-powder mixer, drum rotation speed 20rpm, incorporation time 6min can be uniformly mixed,
Loose shape powder obtains inorganic-organic gradient cooperative flame retardant thermal-insulating system.
2) aqueous-phase suspending comminution granulation prepares the fire-retardant expandable polystyrene (EPS) bead of gradient
2a) organic phase：Ethyl acetate 100ml is added in four round flask, adds in inorganic-organic gradient cooperative flame retardant
Thermal-insulating system 4.0g, mechanical agitation are uniformly dispersed, and then add in waste polystyrol foam material 35g, ultrasonic disperse after dissolving
8min makes inorganic-organic gradient cooperative flame retardant thermal-insulating system be uniformly dispersed in polystyrene solution, obtains organic phase.
2b) water phase：In the flask of overhead type mechanical agitator and distilling apparatus is installed, deionized water 300ml is added in
It is 0.15% nonylphenol polyoxyethylene ether aqueous solution 5.0ml with mass concentration, adds by 0.4g Inorganic suspending agent tricalcium phosphates
With 5.0ml mass concentrations be 3.0% polyvinyl alcohol water solution form inorganic-organic synergy suspending agent, mechanical agitation 6min
Obtain water phase.
2c) aqueous-phase suspending is granulated：By step 2a) the obtained organic phase is transferred to step 2b) obtain it is described
In water phase, mechanical agitation rotating speed is 250rpm, in three recast of surfactant, inorganic-organic synergy suspending agent and mechanical agitation
Under, organic phase steadily in an aqueous medium, realize that aqueous-phase suspending is granulated, be warming up to 77 DEG C and steam organic solvent by suspended dispersed
It realizes the curing of gradient flame retardant polystyrene beads, that is, prepares gradient flame retardant polystyrene beads.
2d) foaming agent impregnates：By step 2c) described in gradient flame retardant polystyrene beads be put into pentane foaming agent and soak
To get to the fire-retardant expandable polystyrene (EPS) bead of gradient after stain.
2e) pre- hair shaping：The fire-retardant expandable polystyrene (EPS) bead of gradient, which pressurizes to send out to be molded in advance through vapor, obtains gradient association
With fire retardant polystyrene heat insulating board.
Embodiment 2
1) inorganic-organic gradient cooperative flame retardant thermal-insulating system is built
The modification of 1a) inorganic fire-retarded-thermal-insulating system
Deionized water 150ml, polyvinylpyrrolidone 1.5g are sequentially added in a reservoir, after dissolving, add in nanometer hydrogen-oxygen
Change magnesium 3.0g, nano-aluminum hydroxide 3.0g, nano-zinc borate 3.0g, ammonium polyphosphate 3.0g, hydrotalcite 3.0g, average grain diameter 5um
Graphite insulation agent 3.0g, ultrasonic disperse 10min, mechanical agitation, rotating speed 200rpm, heating water bath is warming up to 75 DEG C, adds in
2.4g hydrophobic modification agent oleic acid reacts 1.0h, filters after cooling and is washed with ethyl alcohol, obtained after dry loose shape lipophile without
Machine is fire-retardant-thermal-insulating system.
1b) the preparation of inorganic-organic gradient cooperative flame retardant thermal-insulating system
It is 3 by weight:1, weighing step 1a) lipophile for preparing is inorganic fire-retarded-organic resistance of thermal-insulating system and equivalent
It fires agent deca-BDE to add in dry-powder mixer, drum rotation speed 25rpm, incorporation time 8min can be uniformly mixed, are crisp
Loose shape powder obtains inorganic-organic gradient cooperative flame retardant thermal-insulating system.
2) aqueous-phase suspending comminution granulation prepares the fire-retardant expandable polystyrene (EPS) bead of gradient
2a) organic phase：Chloroform 130ml is added in four round flask, it is heat-insulated to add in inorganic-organic gradient cooperative flame retardant
System 6.0g, mechanical agitation are uniformly dispersed, and then add in waste polystyrol foam material 65g, ultrasonic disperse 10min after dissolving,
Inorganic-organic gradient cooperative flame retardant thermal-insulating system is made to be uniformly dispersed in polystyrene solution, obtains organic phase.
2b) water phase：In the flask of overhead type mechanical agitator and distilling apparatus is installed, deionized water 300ml is added in
Be 0.2% nonylphenol polyoxyethylene ether aqueous solution 5.0ml with mass concentration, add by 0.6g Inorganic suspending agents tricalcium phosphate and
The inorganic-organic synergy suspending agent that the polyvinyl alcohol water solution that 5.0ml mass concentrations are 4.5% forms, mechanical agitation 8min are
Obtain water phase.
2c) aqueous-phase suspending is granulated：By step 2a) the obtained organic phase is transferred to step 2b) obtain it is described
In water phase, mechanical agitation rotating speed is 240rpm, in three recast of surfactant, inorganic-organic synergy suspending agent and mechanical agitation
Under, organic phase steadily in an aqueous medium, realize that aqueous-phase suspending is granulated, be warming up to 61 DEG C and steam organic solvent by suspended dispersed
It realizes the curing of gradient flame retardant polystyrene beads, that is, prepares gradient flame retardant polystyrene beads.
2d) foaming agent impregnates：By step 2c) described in gradient flame retardant polystyrene beads be put into pentane foaming agent and soak
To get to the fire-retardant expandable polystyrene (EPS) bead of gradient after stain.
2e) pre- hair shaping：The fire-retardant expandable polystyrene (EPS) bead of gradient, which pressurizes to send out to be molded in advance through vapor, obtains gradient association
With fire retardant polystyrene heat insulating board.
Embodiment 3
1) inorganic-organic gradient cooperative flame retardant thermal-insulating system is built
The modification of 1a) inorganic fire-retarded-thermal-insulating system
Deionized water 350ml, polyvinylpyrrolidone 2.5g are sequentially added in a reservoir, after dissolving, add in nanometer hydrogen-oxygen
Change magnesium 4.0g, nano-aluminum hydroxide 4.0g, nano-zinc borate 4.0g, ammonium polyphosphate 4.0g, hydrotalcite 4.0g, average grain diameter 5um
Graphite insulation agent 4.0g, ultrasonic disperse 13min, mechanical agitation, rotating speed 280rpm, heating water bath is warming up to 76 DEG C, adds in
4.0g hydrophobic modification agent oleic acid reacts 1.2h, filters after cooling and is washed with ethyl alcohol, obtained after dry loose shape lipophile without
Machine is fire-retardant-thermal-insulating system.
1b) the preparation of inorganic-organic gradient cooperative flame retardant thermal-insulating system
It is 3 by weight:1, weighing step 1a) lipophile for preparing is inorganic fire-retarded-organic resistance of thermal-insulating system and equivalent
It fires agent deca-BDE to add in dry-powder mixer, drum rotation speed 30rpm, incorporation time 10min can be uniformly mixed, are crisp
Loose shape powder obtains inorganic-organic gradient cooperative flame retardant thermal-insulating system.
2) aqueous-phase suspending comminution granulation prepares the fire-retardant expandable polystyrene (EPS) bead of gradient
2a) organic phase：Ethyl acetate 120ml is added in four round flask, adds in inorganic-organic gradient cooperative flame retardant
Thermal-insulating system 7.0g, mechanical agitation are uniformly dispersed, and then add in deposed polystyrene injected plastics material 70g, ultrasonic disperse after dissolving
15min makes inorganic-organic gradient cooperative flame retardant thermal-insulating system be uniformly dispersed in polystyrene solution, obtains organic phase.
2b) water phase：In the flask of overhead type mechanical agitator and distilling apparatus is installed, deionized water 360ml is added in
Be 0.2% sodium dodecyl benzene sulfonate aqueous solution 5.0ml with mass concentration, add by 0.6g Inorganic suspending agents tricalcium phosphate and
The inorganic-organic synergy suspending agent that the hydroxyethyl cellulose aqueous solution that 5.0ml mass concentrations are 6.0% forms, mechanical agitation
8min obtains water phase.
2c) aqueous-phase suspending is granulated：By step 2a) the obtained organic phase is transferred to step 2b) obtain it is described
In water phase, mechanical agitation rotating speed is 280rpm, in three recast of surfactant, inorganic-organic synergy suspending agent and mechanical agitation
Under, organic phase steadily in an aqueous medium, realize that aqueous-phase suspending is granulated, be warming up to 77 DEG C and steam organic solvent by suspended dispersed
It realizes the curing of gradient flame retardant polystyrene beads, that is, prepares gradient flame retardant polystyrene beads.
2d) foaming agent impregnates：By step 2c) described in gradient flame retardant polystyrene beads be put into pentane foaming agent and soak
To get to the fire-retardant expandable polystyrene (EPS) bead of gradient after stain.
2e) pre- hair shaping：The fire-retardant expandable polystyrene (EPS) bead of gradient, which pressurizes to send out to be molded in advance through vapor, obtains gradient association
With fire retardant polystyrene heat insulating board.
Effect example
As being the fire-retardant expandable polystyrene (EPS) bead of gradient that the preparation method provided according to the present invention obtains in Fig. 1.
The bead that as we know from the figure prepared by the present invention is ball-type appearance, due to being added in inorganic-organic gradient cooperative flame retardant thermal-insulating system
Insulation agent superfine graphite powder, therefore obtained bead is black beads, average grain diameter about 1.1mm, particle diameter distribution is more uniform, grain
Footpath size is controllable.
If Fig. 2 is the preparation method provided according to the present invention obtains gradient cooperative flame retardant polystyrene heat insulating board
Optical photograph, heat insulating board are gray appearance, and mouldability is preferable.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modifications, equivalent replacements and improvements are made should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of aqueous-phase suspending comminution granulation based on the fire-retardant expandable polystyrene (EPS) bead of deposed polystyrene material preparation gradient,
It is characterized in that, comprises the following steps：
1) inorganic-organic gradient cooperative flame retardant thermal-insulating system is built
The modification of 1a) inorganic fire-retarded-thermal-insulating system
1.0~3.0g of 100~400ml of deionized water and polyvinylpyrrolidone is sequentially added in a reservoir, and after dissolving, addition is received
2.0~4.0g of rice magnesium hydroxide, 2.0~4.0g of nano-aluminum hydroxide, 2.0~4.0g of nano-zinc borate, ammonium polyphosphate 2.0~
4.0g, 2.0~4.0g of hydrotalcite and insulation agent 2.0~4.0g, 5~15min of ultrasonic disperse, mechanical agitation, rotating speed 150~
350rpm, heating water bath are warming up to 60~85 DEG C, add in 1.0~4.0g hydrophobic modification agent, react 0.5~1.5h, are taken out after cooling
Filter, and is washed with ethyl alcohol, obtained after dry loose shape lipophile it is inorganic fire-retarded-thermal-insulating system；
1b) the preparation of inorganic-organic gradient cooperative flame retardant thermal-insulating system
It is 3 by weight:1, weighing step 1a) lipophile that is prepared is inorganic fire-retarded-and thermal-insulating system and organic fire-retardant add
Enter into dry-powder mixer, 15~50rpm of drum rotation speed, 5~10min of incorporation time can be uniformly mixed, loose shape
Powder obtains inorganic-organic gradient cooperative flame retardant thermal-insulating system；
2) aqueous-phase suspending comminution granulation prepares the fire-retardant expandable polystyrene (EPS) bead of gradient
2a) organic phase：Add in 100~200ml of organic solvent in a reservoir, add in 1.0~8.0g step 1b) obtain it is inorganic-
Organic gradient cooperative flame retardant thermal-insulating system, mechanical agitation are uniformly dispersed, and then add in deposed polystyrene 15~80g of material, dissolving
5~20min of ultrasonic disperse afterwards makes inorganic-organic gradient cooperative flame retardant thermal-insulating system be uniformly dispersed in polystyrene solution, obtains
To organic phase；
2b) water phase：In the flask of overhead type mechanical agitator and distilling apparatus is installed, 150~500ml of deionized water is added in
1.0~10.0ml of aqueous surfactant solution with mass concentration is 0.1~0.5%, adds by the inorganic suspensions of 0.1~1.0g
The inorganic-organic synergy that agent and the polymer suspension agent aqueous solution that 4.0~10.0ml mass concentrations are 2.0~6.0% form is hanged
Floating agent, 5~10min of mechanical agitation obtain water phase；
2c) aqueous-phase suspending is granulated：By step 2a) the obtained organic phase is transferred to step 2b) in the obtained water phase, machine
Tool speed of agitator is 150~350rpm, is warming up to organic solvent boiling temperature and steams organic solvent realization gradient flame-retardant polystyrene
Gradient flame retardant polystyrene beads are prepared in the curing of alkene bead；
2d) foaming agent impregnates：By step 2c) described in gradient flame retardant polystyrene beads be put into pentane foaming agent and impregnate
Afterwards to get to the fire-retardant expandable polystyrene (EPS) bead of gradient.
2. the water according to claim 1 based on the fire-retardant expandable polystyrene (EPS) bead of deposed polystyrene material preparation gradient
Phase suspension comminution granulation, it is characterised in that：Step 1a) in, the hydrophobic modification agent is selected from oleic acid, polyethylene glycol phosphate or poly-
Any one in propylene glycol phosphate；The insulation agent is superfine graphite powder, and grain size is 0.5~10 μm.
3. the water according to claim 2 based on the fire-retardant expandable polystyrene (EPS) bead of deposed polystyrene material preparation gradient
Phase suspension comminution granulation, it is characterised in that：Step 1b) in, the organic fire-retardant is in hexabromocyclododecane or deca-BDE
Any one or both it is compound.
4. the water according to claim 3 based on the fire-retardant expandable polystyrene (EPS) bead of deposed polystyrene material preparation gradient
Phase suspension comminution granulation, it is characterised in that：Step 2a) in, the organic solvent is any one in ethyl acetate or chloroform；
The deposed polystyrene material is any one in waste polystyrol foam material or deposed polystyrene injected plastics material.
5. the water according to claim 4 based on the fire-retardant expandable polystyrene (EPS) bead of deposed polystyrene material preparation gradient
Phase suspension comminution granulation, it is characterised in that：Step 2b) in, the surfactant is selected from anion surfactant dodecyl
Benzene sulfonic acid sodium salt, anion surfactant dodecyl sodium sulfate, nonionic surfactant nonylphenol polyoxyethylene ether or non-
Any one in ionic surface active agent octyl phenol polyoxyethylene ether；In the inorganic-organic synergy suspending agent, inorganic suspension
Agent is any one in tricalcium phosphate, barium sulfate, talcum powder or kaolin；Polymer suspension agent is hydroxyethyl cellulose, gathers
Any one in Acrylates, polyvinyl alcohol, polyvinylpyrrolidone, carboxymethyl cellulose or gelatin.
6. a kind of fire-retardant expandable polystyrene (EPS) bead of gradient that method according to any one of claims 1 to 5 is prepared.
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| CN106317514A (en) * | 2016-08-31 | 2017-01-11 | 宁国中奕橡塑有限公司 | Flame-retardant sealing ring for motors of range hoods |
| CN107286555B (en) * | 2017-07-10 | 2019-06-18 | 六安英科实业有限公司 | A kind of nano-material modified fire-retardant toughened regenerated polystyrene composite material and preparation method |
| KR101992628B1 (en) * | 2017-11-21 | 2019-06-25 | 금호석유화학 주식회사 | The fabrication method of expanded polystyrene particle and expanded polystyrene particle |
| CN108219233A (en) * | 2017-12-18 | 2018-06-29 | 襄阳华虹高科新材料有限公司 | A kind of gradient fire retardant and preparation method thereof |
| CN108484961A (en) * | 2018-05-04 | 2018-09-04 | 林宗平 | A method of manufacturing expandable polystyrene using recycling modified styrene polymer |
| CN113248771A (en) * | 2021-06-22 | 2021-08-13 | 富思特新材料科技发展股份有限公司 | Expandable polystyrene for insulation board and preparation method and application thereof |
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