CN107286555B - A kind of nano-material modified fire-retardant toughened regenerated polystyrene composite material and preparation method - Google Patents

A kind of nano-material modified fire-retardant toughened regenerated polystyrene composite material and preparation method Download PDF

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CN107286555B
CN107286555B CN201710555898.2A CN201710555898A CN107286555B CN 107286555 B CN107286555 B CN 107286555B CN 201710555898 A CN201710555898 A CN 201710555898A CN 107286555 B CN107286555 B CN 107286555B
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陈东进
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Lu'an INTCO Industry Co. Ltd.
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00Chemical modification by after-treatment
    • C08F8/34Introducing sulfur atoms or sulfur-containing groups
    • C08F8/36Sulfonation; Sulfation
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F257/00Macromolecular compounds obtained by polymerising monomers on to polymers of aromatic monomers as defined in group C08F12/00
    • C08F257/02Macromolecular compounds obtained by polymerising monomers on to polymers of aromatic monomers as defined in group C08F12/00 on to polymers of styrene or alkyl-substituted styrenes
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
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    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/02Flame or fire retardant/resistant
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    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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    • C08L2207/20Recycled plastic

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Abstract

The present invention provides a kind of nano-material modified fire-retardant toughened regenerated polystyrene composite material and preparation method, the composite material includes the attapulgite of regenerated polystyrene particle and absorption graphene, specifically the preparation method comprises the following steps: by after the impurity on waste and old polystyrol foamed material removal surface, chopping to the partial size of granules of polystyrene to 0.2-0.5cm3, transfer is placed in sealed environment, and it is plasma-treated, obtain the pretreated waste and old polystyrol foamed material of plasma;The pretreated waste and old polystyrol foamed material of plasma is placed in vaporium, at room temperature, is passed through the limonene steam containing auxiliary agent, obtains transparent polystyrene solution, then is modified through the concentrated sulfuric acid, obtains sulfonation regenerated polystyrene particle;Sulfonation regenerated polystyrene particle is added in the calcium chloride water containing nano material, styrene monomer is added dropwise, stirs evenly, adds initiator, heating stirring is taken out, and drying obtains product.

Description

A kind of nano-material modified fire-retardant toughened regenerated polystyrene composite material and its system Preparation Method
Technical field
The invention belongs to regenerated polystyrene field of material technology, and in particular to a kind of nano-material modified fire-retardant toughened Regenerated polystyrene composite material and preparation method.
Background technique
Polystyrene refers to the polymer by styrene monomer free radical addition polymerization, and usually amorphous state is random Polymer, it is nontoxic odorless colorless and transparent, have and be higher than 100 DEG C of glass transition temperatures, there is excellent insulation, insulation and transparent Property, processability and chemical corrosion resistance are good, but crisp, and low temperature is easy to crack.Polystyrene includes ordinary polystyrene, foaming polyphenyl Ethylene and high impact polystyrene and syndiotactic polytyrene, wherein expanded polystyrene (EPS) has that density is small, very strong inoxidizability And corrosion resistance, solar heat protection, it is anti-cold, moisture-proof, shockproof, anti-oxidation, in terms of be widely used, but foam polyphenyl Ethylene belongs to disposable commodity more, and use process is short, with waste product rubbish is completed, and is difficult to degenerate, and directly stacks and handles pair Environment causes very big influence, therefore recycles expanded polystyrene (EPS) Reuse of materials, can not only mitigate environmental pollution, Er Qieke With resource reutilization, realize that the efficient circulation of expanded polystyrene (EPS) material uses.
Solvent method regeneration is that waste and old polystyrol foamed material is dissolved in solvent, by filtering, squeezes and divides with solvent From recycling polystyrene resin.The method of functionally remolding waste polystyrene disclosed in Chinese patent CN101701073B, will Volume is ground into less than 1cm after polystyrene foam removal surface contaminants3Block, be added to chloroform, acetone, acetic acid second It is swollen in ester, benzene or toluene solution, then is placed in water agitating and heating, then separated and dry to obtain white polystyrene particle, most It handles to obtain expandable polystyrene particle by physical blowing agent.The remodeling procedure agents useful for same is nontoxic, and preparation process is without pair Product, therefore simple process and low cost, product purity are high.Chinese patent CN105566670A is disclosed based on useless polyphenyl second Alkene material prepares the aqueous-phase suspending comminution granulation and products thereof of the fire-retardant expandable polystyrene (EPS) bead of gradient, by polyvinyl pyrrole ten thousand Logical, nano-sized magnesium hydroxide, aluminium hydroxide, zinc borate, ammonium polyphosphate, hydrotalcite, insulation agent and hydrophobic modification agent are mixed with shape At lipophilic inorganic fire-retarded insulation agent, inorganic-organic gradient cooperative flame retardant thermal-insulating system is then mixed to get with organic fire-retardant, Organic phase is formed with deposed polystyrene material again, is added to organic in water phase, after mixing, is steamed organic solvent and obtain Cured gradient flame retardant polystyrene beads, then foaming agent is impregnated, water vapour pressurization is preforming to obtain product.By above-mentioned existing skill Art it is found that the waste and old polystyrol foamed material of solvent method recycling at present avoids the degradation of strand without undergoing pyroprocess, But the solubility of polystyrene can be difficult to control, therefore the performance poor controllability of the regenerated polystyrene foamed material prepared, And the low efficiency of solvent method recovery method, it is difficult to meet industrialized quick needs.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of nano-material modified fire-retardant toughened regenerated polystyrene is multiple Waste and old polystyrol foamed material is crushed to 0.2-0.5cm by condensation material and preparation method thereof3, successively plasma-treated, Limonene steam treatment and concentrated acid sulfonation handle to obtain sulfonation regenerated polystyrene particle, by sulfonation regenerated polystyrene particle After the calcium chloride water processing of the attapulgite of the graphene containing absorption, then surface aggregate polystyrene material, form nanometer The fire-retardant toughened regenerated polystyrene composite material of material modification.Composite material prepared by the present invention is with regenerated polystyrene material As primary raw material, adhere to nano-material modified and polystyrene, obtained composite material has core-shell structure, and nano material Uniformly penetrating wherein, makes composite material have fire-retardant toughened characteristic.
In order to solve the above technical problems, the technical scheme is that
A kind of nano-material modified fire-retardant toughened regenerated polystyrene composite material, it is described nano-material modified fire-retardant Toughening regenerated polystyrene composite material includes regenerated polystyrene particle and nano material, and the nano material is absorption graphite The attapulgite of alkene, the raw material of the regenerated polystyrene particle are that waste and old polystyrol foamed material is handled through plasma activation It is obtained by limonene steam treatment.
As a preferred embodiment of the above technical solution, the regenerated polystyrene particle also passes through concentrated acid sulfonation pretreatment.
The present invention also provides a kind of preparation method of nano-material modified fire-retardant toughened regenerated polystyrene composite material, The following steps are included:
(1) by after the impurity on waste and old polystyrol foamed material removal surface, the partial size of chopping to granules of polystyrene is extremely 0.2-0.5cm3, shift and be placed in sealed environment, connect plasma electrical source, generate corona treatment, obtain plasma Pretreated waste and old polystyrol foamed material;
(2) the pretreated waste and old polystyrol foamed material of plasma prepared by step (1) is placed in vaporium, At room temperature, it is passed through the limonene steam containing auxiliary agent, obtains transparent polystyrene solution, then by transparent polystyrene solution through dense sulphur Acid is modified, obtains sulfonation regenerated polystyrene particle;
(3) sulfonation regenerated polystyrene particle prepared by step (2) is added to the calcium chloride water containing nano material In, styrene monomer is added dropwise, stirs evenly, adds initiator, is heated to 130-140 DEG C of stirring, takes out, drying is received The fire-retardant toughened regenerated polystyrene composite material of rice material modification.
As a preferred embodiment of the above technical solution, in the step (1), the humidity of sealed environment is 15-20%, and temperature is 25-30℃。
As a preferred embodiment of the above technical solution, in the step (1), the voltage of plasma electrical source is 4800-6000V, The time of corona treatment is 1-5min.
As a preferred embodiment of the above technical solution, in the step (2), the quality of limonene in the limonene steam containing auxiliary agent Score is 15-20%, and auxiliary agent is polyvinyl alcohol.
As a preferred embodiment of the above technical solution, in the step (2), the time of steam treatment is 10-30min.
As a preferred embodiment of the above technical solution, in the step (3), nanometer material in the calcium chloride water containing nano material Material is the attapulgite of absorption graphene, and the mass fraction of nano material is 5-10%, and the mass fraction of calcium chloride is 30- 40%.
As a preferred embodiment of the above technical solution, in the step (3), the surface of attapulgite is through cetyl trimethyl bromine Change ammonium modification.
As a preferred embodiment of the above technical solution, in the step (3), sulfonation regenerated polystyrene particle and styrene monomer Mass ratio be 100:5-10.
Compared with prior art, the invention has the following advantages:
(1) primary raw material of nano-material modified fire-retardant toughened regenerated polystyrene composite material prepared by the present invention is Waste and old polystyrol foamed material is crushed to 0.2-0.5cm by waste and old polystyrol foamed material3, waste and old polystyrol foaming Material is small, is recycled after being conducive to, then first plasma-treated to make polystyrene degradation, recycles limonene steam Processing is allowed to dissolve, and most handles to obtain sulfonation regenerated polystyrene particle, therefore, regenerated polystyrene grain through concentrated acid sulfonation afterwards The processing efficient of son is simple, can mass disposal, and surface active, the composite modified technique after being conducive to.
(2) nano-material modified fire-retardant toughened regenerated polystyrene composite material prepared by the present invention includes sulfonation regeneration The attapulgite of polystyrene particle and absorption graphene, sulfonation regenerated polystyrene particle are impregnated in the recessed of the graphene containing absorption After the calcium chloride water processing of convex stick soil, calcium chloride solution can carry out swelling treatment to regenerated polystyrene ion surface, make The attapulgite of absorption graphene is easier to penetrate into and be adsorbed onto the surface of regenerated polystyrene particle, and attapulgite has very Strong adsorption function not only can firmly adsorb graphene, but also can adsorb polystyrene material, improve in polystyrene Binding force between portion's macromolecular, and the presence of graphene can also significantly improve the mechanical performance of regenerated polystyrene ion, Styrene monomer and its initiator are finally added, makes the surface aggregate polystyrene material of regenerated polystyrene particle, will receive Rice material is firmly coated with polystyrene particle, and composite material is made to have core-shell structure, is assigning the fire-retardant increasing of composite material On the basis of tough characteristic, the service life of granules of polystyrene is improved.
(3) regenerated polyphenylene second in nano-material modified fire-retardant toughened regenerated polystyrene composite material prepared by the present invention The recovery method of alkene particle is efficient, and re-treating process is simple, and controllability is strong, the regenerated polystyrene Compound Material Engineering of preparation Can be excellent, also there is certain flame retardant property and durability, significantly improve the comprehensive performance of regenerated polystyrene composite material, Improve the functional performance and suitable application area of regenerated polystyrene composite material.
Specific embodiment
Below in conjunction with specific embodiment, the present invention will be described in detail, herein illustrative examples and explanation of the invention For explaining the present invention, but it is not as a limitation of the invention.
Embodiment 1:
(1) by after the impurity on waste and old polystyrol foamed material removal surface, the partial size of chopping to granules of polystyrene is extremely 0.2-0.5cm3, it is 15% that transfer, which is placed in humidity, in the sealed environment that temperature is 25 DEG C, connects the plasma that voltage is 4800V Body power supply generates plasma, handles 1min, obtains the pretreated waste and old polystyrol foamed material of plasma.
(2) the pretreated waste and old polystyrol foamed material of plasma is placed in vaporium, at room temperature, is passed through and contains The limonene steam of the 15wt% of polyvinyl alcohol, steam treatment 10min obtain transparent polystyrene solution, then by transparent polyphenyl Ethylene solution, through the modified 30min of the concentrated sulfuric acid, obtains sulfonation regenerated polystyrene particle at 70 DEG C.
(3) by weight, 1 part of sulfonation regenerated polystyrene particle is added to 50 parts of the nanometer material containing 5wt% In the 30wt% calcium chloride water of material, wherein nano material is that the cetyl trimethylammonium bromide modification of absorption graphene is recessed Convex stick soil, is added dropwise 0.05 part of styrene monomer, stirs evenly, add 0.001 part of methane initiator, be heated to 130 DEG C Stirring is taken out, and drying obtains nano-material modified fire-retardant toughened regenerated polystyrene composite material.
Embodiment 2:
(1) by after the impurity on waste and old polystyrol foamed material removal surface, the partial size of chopping to granules of polystyrene is extremely 0.2-0.5cm3, it is 20% that transfer, which is placed in humidity, in the sealed environment that temperature is 30 DEG C, connects the plasma that voltage is 6000V Body power supply generates plasma, handles 5min, obtains the pretreated waste and old polystyrol foamed material of plasma.
(2) the pretreated waste and old polystyrol foamed material of plasma is placed in vaporium, at room temperature, is passed through and contains The limonene steam of the 20wt% of polyvinyl alcohol, steam treatment 30min obtain transparent polystyrene solution, then by transparent polyphenyl Ethylene solution, through the modified 30min of the concentrated sulfuric acid, obtains sulfonation regenerated polystyrene particle at 90 DEG C.
(3) by weight, 1 part of sulfonation regenerated polystyrene particle is added to 50 parts of the nanometer material containing 10wt% In the 40wt% calcium chloride water of material, wherein nano material is that the cetyl trimethylammonium bromide modification of absorption graphene is recessed Convex stick soil, is added dropwise 0.1 part of styrene monomer, stirs evenly, add 0.003 part of methane initiator, be heated to 140 DEG C and stir It mixes, takes out, drying obtains nano-material modified fire-retardant toughened regenerated polystyrene composite material.
Embodiment 3:
(1) by after the impurity on waste and old polystyrol foamed material removal surface, the partial size of chopping to granules of polystyrene is extremely 0.2-0.5cm3, it is 18% that transfer, which is placed in humidity, and temperature is to connect the plasma that voltage is 5000V in 26 DEG C of d sealed environments Power supply generates plasma, handles 2min, obtains the pretreated waste and old polystyrol foamed material of plasma.
(2) the pretreated waste and old polystyrol foamed material of plasma is placed in vaporium, at room temperature, is passed through and contains The limonene steam of the 20wt% of polyvinyl alcohol, steam treatment 10min obtain transparent polystyrene solution, then by transparent polyphenyl Ethylene solution, through the modified 30min of the concentrated sulfuric acid, obtains sulfonation regenerated polystyrene particle at 80 DEG C.
(3) by weight, 1 part of sulfonation regenerated polystyrene particle is added to 50 parts of the nanometer material containing 6wt% In the 35wt% calcium chloride water of material, wherein nano material is that the cetyl trimethylammonium bromide modification of absorption graphene is recessed Convex stick soil, is added dropwise 0.07 part of styrene monomer, stirs evenly, add 0.002 part of methane initiator, be heated to 135 DEG C Stirring is taken out, and drying obtains nano-material modified fire-retardant toughened regenerated polystyrene composite material.
Embodiment 4:
(1) by after the impurity on waste and old polystyrol foamed material removal surface, the partial size of chopping to granules of polystyrene is extremely 0.2-0.5cm3, it is 20% that transfer, which is placed in humidity, in the sealed environment that temperature is 25 DEG C, connects the plasma that voltage is 5500V Body power supply generates plasma, handles 3min, obtains the pretreated waste and old polystyrol foamed material of plasma.
(2) the pretreated waste and old polystyrol foamed material of plasma is placed in vaporium, at room temperature, is passed through and contains The limonene steam of the 19wt% of polyvinyl alcohol, steam treatment 15min obtain transparent polystyrene solution, then by transparent polyphenyl Ethylene solution, through the modified 30min of the concentrated sulfuric acid, obtains sulfonation regenerated polystyrene particle at 75 DEG C.
(3) by weight, 1 part of sulfonation regenerated polystyrene particle is added to 50 parts of the nanometer material containing 7wt% In the 35wt% calcium chloride water of material, wherein nano material is that the cetyl trimethylammonium bromide modification of absorption graphene is recessed Convex stick soil, is added dropwise 0.09 part of styrene monomer, stirs evenly, add 0.001 part of methane initiator, be heated to 140 DEG C Stirring is taken out, and drying obtains nano-material modified fire-retardant toughened regenerated polystyrene composite material.
Embodiment 5:
(1) by after the impurity on waste and old polystyrol foamed material removal surface, the partial size of chopping to granules of polystyrene is extremely 0.2-0.5cm3, it is 15% that transfer, which is placed in humidity, in the sealed environment that temperature is 26 DEG C, connects the plasma that voltage is 5500V Body power supply generates plasma, handles 3min, obtains the pretreated waste and old polystyrol foamed material of plasma.
(2) the pretreated waste and old polystyrol foamed material of plasma is placed in vaporium, at room temperature, is passed through and contains The limonene steam of the 17wt% of polyvinyl alcohol, steam treatment 25min obtain transparent polystyrene solution, then by transparent polyphenyl Ethylene solution, through the modified 30min of the concentrated sulfuric acid, obtains sulfonation regenerated polystyrene particle at 80 DEG C.
(3) by weight, 1 part of sulfonation regenerated polystyrene particle is added to 50 parts of the nanometer material containing 7wt% In the 30wt% calcium chloride water of material, wherein nano material is that the cetyl trimethylammonium bromide modification of absorption graphene is recessed Convex stick soil, is added dropwise 0.06 part of styrene monomer, stirs evenly, add 0.003 part of methane initiator, be heated to 130 DEG C Stirring is taken out, and drying obtains nano-material modified fire-retardant toughened regenerated polystyrene composite material.
Embodiment 6:
(1) by after the impurity on waste and old polystyrol foamed material removal surface, the partial size of chopping to granules of polystyrene is extremely 0.2-0.5cm3, it is 17% that transfer, which is placed in humidity, in the sealed environment that temperature is 28 DEG C, connects the plasma that voltage is 6000V Body power supply generates plasma, handles 2.5min, obtains the pretreated waste and old polystyrol foamed material of plasma.
(2) the pretreated waste and old polystyrol foamed material of plasma is placed in vaporium, at room temperature, is passed through and contains The limonene steam of the 15wt% of polyvinyl alcohol, steam treatment 25min obtain transparent polystyrene solution, then by transparent polyphenyl Ethylene solution, through the modified 30min of the concentrated sulfuric acid, obtains sulfonation regenerated polystyrene particle at 75 DEG C.
(3) by weight, 1 part of sulfonation regenerated polystyrene particle is added to 50 parts of the nanometer material containing 8wt% In the 40wt% calcium chloride water of material, wherein nano material is that the cetyl trimethylammonium bromide modification of absorption graphene is recessed Convex stick soil, is added dropwise 0.09 part of styrene monomer, stirs evenly, add 0.003 part of methane initiator, be heated to 130 DEG C Stirring is taken out, and drying obtains nano-material modified fire-retardant toughened regenerated polystyrene composite material.
Through detecting, embodiment 1-6 preparation nano-material modified fire-retardant toughened regenerated polystyrene composite material and The following institute of regenerated polystyrene material and the mechanical property of standard polystyren material and the result of flame retardant property of the prior art Show:
As seen from the above table, nano-material modified fire-retardant toughened regenerated polystyrene composite material prepared by the present invention and existing There is the regenerated polystyrene material of technology to compare with standard polystyren material, mechanical property significantly improves, and also has excellent Different flame retardant property.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as At all equivalent modifications or change, should be covered by the claims of the present invention.

Claims (9)

1. a kind of nano-material modified fire-retardant toughened regenerated polystyrene composite material, it is characterised in that: the nano material Modified fire-retardant toughened regenerated polystyrene composite material includes regenerated polystyrene particle and nano material, the nano material For the attapulgite for adsorbing graphene, the raw material of the regenerated polystyrene particle be waste and old polystyrol foamed material through it is equal from Son obtains after being activated through limonene steam treatment;
The preparation method of the nano-material modified fire-retardant toughened regenerated polystyrene composite material, comprising the following steps:
(1) will be after the impurity on waste and old polystyrol foamed material removal surface, chopping to the partial size of granules of polystyrene is to 0.2- 0.5cm3, shift and be placed in sealed environment, connect plasma electrical source, generate corona treatment, obtain plasma and locate in advance The waste and old polystyrol foamed material of reason;
(2) the pretreated waste and old polystyrol foamed material of plasma prepared by step (1) is placed in vaporium, in room temperature Under, it is passed through the limonene steam containing auxiliary agent, obtains transparent polystyrene solution, then transparent polystyrene solution is changed through the concentrated sulfuric acid Property, obtain sulfonation regenerated polystyrene particle;
(3) sulfonation regenerated polystyrene particle prepared by step (2) is added in the calcium chloride water containing nano material, is dripped Add styrene monomer, stir evenly, add initiator, be heated to 130-140 DEG C of stirring, take out, drying obtains nano material Modified fire-retardant toughened regenerated polystyrene composite material.
2. nano-material modified fire-retardant toughened regenerated polystyrene composite material according to claim 1, feature exist In the regenerated polystyrene particle also passes through concentrated acid sulfonation pretreatment.
3. a kind of preparation method of nano-material modified fire-retardant toughened regenerated polystyrene composite material, which is characterized in that packet Include following steps:
(1) will be after the impurity on waste and old polystyrol foamed material removal surface, chopping to the partial size of granules of polystyrene is to 0.2- 0.5cm3, shift and be placed in sealed environment, connect plasma electrical source, generate corona treatment, obtain plasma and locate in advance The waste and old polystyrol foamed material of reason;
(2) the pretreated waste and old polystyrol foamed material of plasma prepared by step (1) is placed in vaporium, in room temperature Under, it is passed through the limonene steam containing auxiliary agent, obtains transparent polystyrene solution, then transparent polystyrene solution is changed through the concentrated sulfuric acid Property, obtain sulfonation regenerated polystyrene particle;
(3) sulfonation regenerated polystyrene particle prepared by step (2) is added in the calcium chloride water containing nano material, is dripped Add styrene monomer, stir evenly, add initiator, be heated to 130-140 DEG C of stirring, take out, drying obtains nano material Modified fire-retardant toughened regenerated polystyrene composite material;
In the step (3), nano material is the attapulgite for adsorbing graphene in the calcium chloride water containing nano material, is received The mass fraction of rice material is 5-10%, and the mass fraction of calcium chloride is 30-40%.
4. the preparation side of nano-material modified fire-retardant toughened regenerated polystyrene composite material according to claim 3 Method, it is characterised in that: in the step (1), the humidity of sealed environment is 15-20%, and temperature is 25-30 DEG C.
5. the preparation side of nano-material modified fire-retardant toughened regenerated polystyrene composite material according to claim 3 Method, it is characterised in that: in the step (1), the voltage of plasma electrical source is 4800-6000V, the time of corona treatment For 1-5min.
6. the preparation side of nano-material modified fire-retardant toughened regenerated polystyrene composite material according to claim 3 Method, it is characterised in that: in the step (2), the mass fraction of limonene is 15-20% in the limonene steam containing auxiliary agent, is helped Agent is polyvinyl alcohol.
7. the preparation side of nano-material modified fire-retardant toughened regenerated polystyrene composite material according to claim 3 Method, it is characterised in that: in the step (2), the time of steam treatment is 10-30min.
8. the preparation side of nano-material modified fire-retardant toughened regenerated polystyrene composite material according to claim 3 Method, it is characterised in that: in the step (3), the surface of attapulgite is through cetyl trimethylammonium bromide modification.
9. the preparation side of nano-material modified fire-retardant toughened regenerated polystyrene composite material according to claim 3 Method, it is characterised in that: in the step (3), the mass ratio of sulfonation regenerated polystyrene particle and styrene monomer is 100:5- 10。
CN201710555898.2A 2017-07-10 2017-07-10 A kind of nano-material modified fire-retardant toughened regenerated polystyrene composite material and preparation method Active CN107286555B (en)

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CN105566670A (en) * 2015-12-18 2016-05-11 武汉轻工大学 Water-phase suspension granulation method for preparing gradient flame-retardant foamable polystyrene beads on basis of waste polystyrene materials and products of water-phase suspension granulation method
CN105885092A (en) * 2016-05-20 2016-08-24 安徽大学 Graphene oxide-attapulgite composite modifier for polymers and modification method of polymers

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