CN102838815B - Preparation method for flame-retardant foamed polystyrene resin - Google Patents
Preparation method for flame-retardant foamed polystyrene resin Download PDFInfo
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- CN102838815B CN102838815B CN201210338404.2A CN201210338404A CN102838815B CN 102838815 B CN102838815 B CN 102838815B CN 201210338404 A CN201210338404 A CN 201210338404A CN 102838815 B CN102838815 B CN 102838815B
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Abstract
The invention relates to a preparation method for flame-retardant foamed polystyrene resin, relates to a resin preparation method, and solves the problem of flammability of foamed polystyrene resin. The preparation method comprises the following steps: preparing a first mixture; preparing a second mixture; adding pentane to the second mixture, sealing the mixture in a reaction kettle and filling nitrogen to make the pressure reach 5 to 5.5 MPa, rising the temperature to 120 DEG C until the pressure in the reaction kettle reaches 8 to 9 MPa, and then carrying out a reaction for 8 h; cooling the reaction kettle, deflating when the temperature is decreased to 50 to 40 DEG C, discharging after the pressure is equal to zero, washing, and drying at the room temperature; and finally obtaining the flame-retardant foamed polystyrene resin. The flame retardant rating of the flame-retardant foamed polystyrene resin reaches the Level B1. Compared with a commercially available material, the flame-retardant foamed polystyrene resin has the advantages that the bending strength and the compression strength are improved by 15.9% to 24.1%, and the thermal conductivity is lowered by 8.7% to 12.4%.
Description
Technical field
The present invention relates to a kind of preparation method of resin.
Background technology
Expandable Polystyrene (EPS) (expandable polystyrene, EPS), can be called foamed polystyrene resin again, what be first early 1940s invented by BASF Aktiengesellschaft a kind ofly has outstanding low density and the foam materials of heat-insulating property.The purposes of foamed polystyrene resin widely, because it has light, the splendid insulation heat-insulating property of high strength, quality and high-selenium corn energy ability, the wrapping material of various instrument, valuables, precision instrument, vegetable and fruit and fishery products etc. can be used as; And because its have that thermal conductivity is low, water-absorbent is little, electrical insulating property is good, sound insulation, protection against the tide and the good characteristic such as moulding process is simple, and be widely used in the roadbed laying of road and bridge and building construction and fishery and fish for and refrigerate the aspects such as the lagging material of industry.Wherein, as a kind of excellent material of construction, foamed polystyrene resin is mainly used in roofing and the body of wall of buildings, and it has very good energy-saving effect as external heat insulating composite wall; And be applicable to house, factory, flat and pitch roofing as heat insulation house surface, the effects such as sound insulation, dash steam, sealing and heat insulating can be played.As lagging material for building, several performance index of overriding concern are low thermal conductivities, high fire retardancy, good adhesiveproperties and good self-strength.
The constructional feature of foamed polystyrene resin is that specific surface area is very large, and material internal structure is cellular, and be bubble wall, pillar or polystyrene film between abscess, its material internal major part volume is occupied by air, is very easy to flame spread occurs after it catches fire.Therefore, foamed polystyrene resin goods is fire-retardant more a lot of than other ordinary resin material difficulties.And, can orange flame be produced during foamed polystyrene resin burning, send cinnamic smell, and with a large amount of black smoke, toxicity is very large.
Summary of the invention
The present invention, in order to solve the inflammable technical problem of foamed polystyrene resin, provides a kind of preparation method of retardant expanded polystyrene resin.
The preparation method of retardant expanded polystyrene resin carries out according to following steps:
One, 0.15 ~ 0.42 part of calcium phosphate, 0.002 ~ 0.01 part of Sodium dodecylbenzene sulfonate, 150 ~ 300 parts of deionized waters, 0.5 ~ 0.95 part of fire retardant, 100 parts of styrene monomers and 0.4 ~ 0.7 part of dibenzoyl peroxide is taken according to parts by weight;
Two, 0.13 ~ 25 weight part sodium pyrosulfate or 0.13 ~ 25 part by weight of cellulose, calcium phosphate, Sodium dodecylbenzene sulfonate and deionized water are carried out in a kettle. mixing under the condition of 70 ~ 75 DEG C and stirring and dissolving, obtain the first mixture;
Three, fire retardant, styrene monomer and dibenzoyl peroxide are added in the first mixture, then react 5 ~ 7 hours at 87 ~ 91 DEG C, obtain the second mixture;
Four, by the second mixture after 95 DEG C of reaction 30min, in the second mixture, add pentane, then closed reactor be filled with nitrogen and make pressure reach 5 ~ 5.5MPa, be then warmed up to 120 DEG C and reach 8 ~ 9MPa to the pressure in reactor, carry out reaction 8 hours; Cooled by reactor, treat that temperature is down to 50 ~ 40 DEG C, venting, pressure is zero rear discharging, washing, and dries under room temperature, obtains retardant expanded polystyrene resin;
Fire retardant described in step one is made up of the red phosphorus of the hexabromocyclododecane of 0.15 ~ 0.24 mass parts, the antimonous oxide of 0.05 ~ 0.20 mass parts, the magnesium hydroxide of 0.1 ~ 0.3 mass parts and 0.10 ~ 0.21 mass parts;
The graphite of 0.85 ~ 2 weight part is dissolved with in 100 weight parts of styrene monomer described in step one;
Pentane addition described in step 4 is 8 ~ 9% of styrene monomer quality.
Because graphite flake structure is special, self is with a large amount of unbound electron, this makes graphite flake can absorb infrared rays and reflected infrared preferably and reduces the thermal conductivity of material, simultaneously, because graphite flake has higher resistivity against fire relative to polystyrene, so, attempt in the present invention adding graphite flake, prepare the foamed polystyrene resin of flame retardant type lower thermal conductivity.
The method preparing retardant expanded polystyrene resin of the present invention, step is simple to operation, efficiency is high, cost is low, and the retardant expanded polystyrene resin prepared, flame retardant properties is very good, and thermal conductivity is low, intensity is high.The flame retardant rating of retardant expanded polystyrene resin of the present invention is B1 level, and its flexural strength and compressive strength are higher than commercially available material 15.9 ~ 24.1%, and thermal conductivity is lower than the thermal conductivity of commercially available material by 8.7 ~ 12.4%.
Embodiment
Technical solution of the present invention is not limited to following cited embodiment, also comprises the arbitrary combination between each embodiment.
Embodiment one: the preparation method of present embodiment retardant expanded polystyrene resin carries out according to following steps:
One, 0.15 ~ 0.42 part of calcium phosphate, 0.002 ~ 0.01 part of Sodium dodecylbenzene sulfonate, 150 ~ 300 parts of deionized waters, 0.5 ~ 0.95 part of fire retardant, 100 parts of styrene monomers and 0.4 ~ 0.7 part of dibenzoyl peroxide is taken according to parts by weight;
Two, 0.13 ~ 25 weight part sodium pyrosulfate or 0.13 ~ 25 part by weight of cellulose, calcium phosphate, Sodium dodecylbenzene sulfonate and deionized water are carried out in a kettle. mixing under the condition of 70 ~ 75 DEG C and stirring and dissolving, obtain the first mixture;
Three, fire retardant, styrene monomer and dibenzoyl peroxide are added in the first mixture, then react 5 ~ 7 hours at 87 ~ 91 DEG C, obtain the second mixture;
Four, by the second mixture after 95 DEG C of reaction 30min, in the second mixture, add pentane, then closed reactor be filled with nitrogen and make pressure reach 5 ~ 5.5MPa, be then warmed up to 120 DEG C and reach 8 ~ 9MPa to the pressure in reactor, carry out reaction 8 hours; Cooled by reactor, treat that temperature is down to 50 ~ 40 DEG C, venting, pressure is zero rear discharging, washing, and dries under room temperature, obtains retardant expanded polystyrene resin;
Fire retardant described in step one is made up of the red phosphorus of the hexabromocyclododecane of 0.15 ~ 0.24 mass parts, the antimonous oxide of 0.05 ~ 0.20 mass parts, the magnesium hydroxide of 0.1 ~ 0.3 mass parts and 0.10 ~ 0.21 mass parts;
The graphite of 0.85 ~ 2 weight part is dissolved with in 100 weight parts of styrene monomer described in step one;
Pentane addition described in step 4 is 8 ~ 9% of styrene monomer quality.
Embodiment two: present embodiment and embodiment one take 0.2 ~ 0.4 part of calcium phosphate, 0.006 ~ 0.01 part of Sodium dodecylbenzene sulfonate, 180 ~ 280 parts of deionized waters, 0.6 ~ 0.9 part of fire retardant, 100 parts of styrene monomers and 0.4 part of dibenzoyl peroxide unlike in step one according to parts by weight.Other is identical with embodiment one.
Embodiment three: present embodiment and embodiment one take 0.3 part of calcium phosphate, 0.008 ~ 0.01 part of Sodium dodecylbenzene sulfonate, 200 ~ 250 parts of deionized waters, 0.7 part of fire retardant, 100 parts of styrene monomers and 0.5 part of dibenzoyl peroxide unlike in step one according to parts by weight.Other is identical with embodiment one.
Embodiment four: present embodiment and embodiment one take 0.35 part of calcium phosphate, 0.009 part of Sodium dodecylbenzene sulfonate, 210 parts of deionized waters, 0.8 part of fire retardant, 100 parts of styrene monomers and 0.6 part of dibenzoyl peroxide unlike in step one according to parts by weight.Other is identical with embodiment one.
Embodiment five: present embodiment and embodiment one are unlike sodium pyrosulfate or Mierocrystalline cellulose, calcium phosphate, Sodium dodecylbenzene sulfonate and deionized water being carried out in a kettle. mixing in step 2 under the condition of 73 DEG C and stirring and dissolving.Other is identical with embodiment one.
Embodiment six: present embodiment and embodiment one react 6 hours unlike in step 3 at 90 DEG C.Other is identical with embodiment one.
Embodiment seven: present embodiment and embodiment one are unlike closed reactor in step 4 and be filled with nitrogen and make pressure reach 5.2MPa.Other is identical with embodiment one.
Embodiment eight: present embodiment and embodiment one reach 8.5MPa unlike being warmed up to 120 DEG C in step 4 to the pressure in reactor.Other is identical with embodiment one.
Embodiment nine: present embodiment and embodiment one are 8.5% of styrene monomer quality unlike the pentane addition described in step 4.Other is identical with embodiment one.
Embodiment ten: present embodiment and embodiment one are unlike treating in step 4 that temperature is down to 45 DEG C and is exitted.Other is identical with embodiment one.
Adopt following experimental verification effect of the present invention:
Experiment one:
The preparation method of retardant expanded polystyrene resin carries out according to following steps:
One, 0.13 part of sodium pyrosulfate, 0.15 part of calcium phosphate, 0.002 part of Sodium dodecylbenzene sulfonate, 150 parts of deionized waters, 0.5 part of fire retardant, 100 parts of styrene monomers and 0.4 part of dibenzoyl peroxide is taken according to parts by weight;
Two, sodium pyrosulfate, calcium phosphate, Sodium dodecylbenzene sulfonate and deionized water are carried out in a kettle. mixing under the condition of 70 DEG C and stirring and dissolving, obtain the first mixture;
Three, fire retardant, styrene monomer and dibenzoyl peroxide are added in the first mixture, then react 7 hours at 87 DEG C, obtain the second mixture;
Four, by the second mixture after 95 DEG C of reaction 30min, in the second mixture, add pentane, then closed reactor be filled with nitrogen and make pressure reach 5MPa, be then warmed up to 120 DEG C and reach 8MPa to the pressure in reactor, carry out reaction 8 hours; Cooled by reactor, treat that temperature is down to 50 DEG C, venting, pressure is zero rear discharging, washing, and dries under room temperature, obtains retardant expanded polystyrene resin;
Fire retardant described in step one is made up of the red phosphorus of the hexabromocyclododecane of 0.15 mass parts, the antimonous oxide of 0.05 mass parts, the magnesium hydroxide of 0.2 mass parts and 0.1 mass parts;
The graphite of 0.85 weight part is dissolved with in 100 weight parts of styrene monomer described in step one;
Pentane addition described in step 4 is 8% of styrene monomer quality.
The retardant expanded polystyrene resin prepared is carried out forming processes, to obtain flame-retardant foam sheet material.Then, (flame retardant rating test adopts: material of construction and product burns grading performance national standard (GB 8624-2006) the flame-retardant foam sheet material obtained to be carried out performance test; Strength test adopts: standard GB/T 6344-96; Thermal conductivity test adopts: national army mark GJB 1875-94).From test result: the flame-retardant foam sheet material that this experiment prepares, its flame retardant rating B1 level, flexural strength and compressive strength higher by 15.9% than commercially available foamed styrene sheet material intensity, thermal conductivity is lower by 8.7% than commercially available foamed styrene sheet material.
Experiment two:
The preparation method of retardant expanded polystyrene resin carries out according to following steps:
One, 0.16 part of Mierocrystalline cellulose, 0.2 part of calcium phosphate, 0.008 part of Sodium dodecylbenzene sulfonate, 170 parts of deionized waters, 0.6 part of fire retardant, 100 parts of styrene monomers and 0.7 part of dibenzoyl peroxide is taken according to parts by weight;
Two, Mierocrystalline cellulose, calcium phosphate, Sodium dodecylbenzene sulfonate and deionized water are carried out in a kettle. mixing under the condition of 72 DEG C and stirring and dissolving, obtain the first mixture;
Three, fire retardant, styrene monomer and dibenzoyl peroxide are added in the first mixture, then react 7 hours at 88 DEG C, obtain the second mixture;
Four, by the second mixture after 95 DEG C of reaction 30min, in the second mixture, add pentane, then closed reactor be filled with nitrogen and make pressure reach 5.1MPa, be then warmed up to 120 DEG C and reach 8.3MPa to the pressure in reactor, carry out reaction 8 hours; Cooled by reactor, treat that temperature is down to 48 DEG C, venting, pressure is zero rear discharging, washing, and dries under room temperature, obtains retardant expanded polystyrene resin;
Fire retardant described in step one is made up of the red phosphorus of the hexabromocyclododecane of 0.19 mass parts, the antimonous oxide of 0.08 mass parts, the magnesium hydroxide of 0.25 mass parts and 0.13 mass parts;
The graphite of 1.1 weight parts is dissolved with in 100 weight parts of styrene monomer described in step one;
Pentane addition described in step 4 is 8.3% of styrene monomer quality.
The retardant expanded polystyrene resin prepared is carried out forming processes, to obtain flame-retardant foam sheet material.Then, (flame retardant rating test adopts: material of construction and product burns grading performance national standard (GB 8624-2006) the flame-retardant foam sheet material obtained to be carried out performance test; Strength test adopts: standard GB/T 6344-96; Thermal conductivity test adopts: national army mark GJB 1875-94).From test result: the flame-retardant foam sheet material that this experiment prepares, its flame retardant rating B1 level, flexural strength and compressive strength higher by 22.3% than commercially available foamed styrene sheet material intensity, thermal conductivity is lower by 9.1% than commercially available foamed styrene sheet material.
Experiment three:
The preparation method of retardant expanded polystyrene resin carries out according to following steps:
One, 0.18 part of sodium pyrosulfate, 0.25 part of calcium phosphate, 0.009 part of Sodium dodecylbenzene sulfonate, 190 parts of deionized waters, 0.75 part of fire retardant, 100 parts of styrene monomers and 0.55 part of dibenzoyl peroxide is taken according to parts by weight;
Two, sodium pyrosulfate, calcium phosphate, Sodium dodecylbenzene sulfonate and deionized water are carried out in a kettle. mixing under the condition of 73 DEG C and stirring and dissolving, obtain the first mixture;
Three, fire retardant, styrene monomer and dibenzoyl peroxide are added in the first mixture, then react 5 ~ 7 hours at 87 ~ 91 DEG C, obtain the second mixture;
Four, by the second mixture after 95 DEG C of reaction 30min, in the second mixture, add pentane, then closed reactor be filled with nitrogen and make pressure reach 5.3MPa, be then warmed up to 120 DEG C and reach 8.7MPa to the pressure in reactor, carry out reaction 8 hours; Cooled by reactor, treat that temperature is down to 45 DEG C, venting, pressure is zero rear discharging, washing, and dries under room temperature, obtains retardant expanded polystyrene resin;
Fire retardant described in step one is made up of the red phosphorus of the hexabromocyclododecane of 0.2 mass parts, the antimonous oxide of 0.16 mass parts, the magnesium hydroxide of 0.24 mass parts and 0.15 mass parts;
The graphite of 1.55 weight parts is dissolved with in 100 weight parts of styrene monomer described in step one;
Pentane addition described in step 4 is 8.4% of styrene monomer quality.
The retardant expanded polystyrene resin prepared is carried out forming processes, to obtain flame-retardant foam sheet material.Then, (flame retardant rating test adopts: material of construction and product burns grading performance national standard (GB 8624-2006) the flame-retardant foam sheet material obtained to be carried out performance test; Strength test adopts: standard GB/T 6344-96; Thermal conductivity test adopts: national army mark GJB 1875-94).From test result: the flame-retardant foam sheet material that this experiment prepares, its flame retardant rating B1 level, flexural strength and compressive strength higher by 19.6% than commercially available foamed styrene sheet material intensity, thermal conductivity is lower by 9.3% than commercially available foamed styrene sheet material.
Experiment four:
The preparation method of retardant expanded polystyrene resin carries out according to following steps:
One, 0.23 part of sodium pyrosulfate, 0.35 part of calcium phosphate, 0.009 part of Sodium dodecylbenzene sulfonate, 240 parts of deionized waters, 0.9 part of fire retardant, 100 parts of styrene monomers and 0.65 part of dibenzoyl peroxide is taken according to parts by weight;
Two, sodium pyrosulfate, calcium phosphate, Sodium dodecylbenzene sulfonate and deionized water are carried out in a kettle. mixing under the condition of 74 DEG C and stirring and dissolving, obtain the first mixture;
Three, fire retardant, styrene monomer and dibenzoyl peroxide are added in the first mixture, then react 6.4 hours at 90 DEG C, obtain the second mixture;
Four, by the second mixture after 95 DEG C of reaction 30min, in the second mixture, add pentane, then closed reactor be filled with nitrogen and make pressure reach 5.4MPa, be then warmed up to 120 DEG C and reach 8.9MPa to the pressure in reactor, carry out reaction 8 hours; Cooled by reactor, treat that temperature is down to 43 DEG C, venting, pressure is zero rear discharging, washing, and dries under room temperature, obtains retardant expanded polystyrene resin;
Fire retardant described in step one is made up of the red phosphorus of the hexabromocyclododecane of 0.2 mass parts, the antimonous oxide of 0.18 mass parts, the magnesium hydroxide of 0.22 mass parts and 0.1 mass parts;
The graphite of 1.75 weight parts is dissolved with in 100 weight parts of styrene monomer described in step one;
Pentane addition described in step 4 is 8.3% of styrene monomer quality.
The retardant expanded polystyrene resin prepared is carried out forming processes, to obtain flame-retardant foam sheet material.Then, (flame retardant rating test adopts: material of construction and product burns grading performance national standard (GB 8624-2006) the flame-retardant foam sheet material obtained to be carried out performance test; Strength test adopts: standard GB/T 6344-96; Thermal conductivity test adopts: national army mark GJB 1875-94).From test result: the flame-retardant foam sheet material that this experiment prepares, its flame retardant rating B1 level, flexural strength and compressive strength higher by 24.1% than commercially available foamed styrene sheet material intensity, thermal conductivity is lower by 11.2% than commercially available foamed styrene sheet material.
Experiment five:
The preparation method of retardant expanded polystyrene resin carries out according to following steps:
One, 0.25 part of Mierocrystalline cellulose, 0.42 part of calcium phosphate, 0.01 part of Sodium dodecylbenzene sulfonate, 300 parts of deionized waters, 0.95 part of fire retardant, 100 parts of styrene monomers and 0.55 part of dibenzoyl peroxide is taken according to parts by weight;
Two, Mierocrystalline cellulose, calcium phosphate, Sodium dodecylbenzene sulfonate and deionized water are carried out in a kettle. mixing under the condition of 75 DEG C and stirring and dissolving, obtain the first mixture;
Three, fire retardant, styrene monomer and dibenzoyl peroxide are added in the first mixture, then react 6.3 hours at 91 DEG C, obtain the second mixture;
Four, by the second mixture after 95 DEG C of reaction 30min, in the second mixture, add pentane, then closed reactor be filled with nitrogen and make pressure reach 5.5MPa, be then warmed up to 120 DEG C and reach 9MPa to the pressure in reactor, carry out reaction 8 hours; Cooled by reactor, treat that temperature is down to 40 DEG C, venting, pressure is zero rear discharging, washing, and dries under room temperature, obtains retardant expanded polystyrene resin;
Fire retardant described in step one is made up of the red phosphorus of the hexabromocyclododecane of 0.24 mass parts, the antimonous oxide of 0.20 mass parts, the magnesium hydroxide of 0.3 mass parts and 0.21 mass parts;
The graphite of 2 weight parts is dissolved with in 100 weight parts of styrene monomer described in step one;
Pentane addition described in step 4 is 9% of styrene monomer quality.
The retardant expanded polystyrene resin prepared is carried out forming processes, to obtain flame-retardant foam sheet material.Then, (flame retardant rating test adopts: material of construction and product burns grading performance national standard (GB 8624-2006) the flame-retardant foam sheet material obtained to be carried out performance test; Strength test adopts: standard GB/T 6344-96; Thermal conductivity test adopts: national army mark GJB 1875-94).From test result: the flame-retardant foam sheet material that this experiment prepares, its flame retardant rating B1 level, flexural strength and compressive strength higher by 18.7% than commercially available foamed styrene sheet material intensity, thermal conductivity is lower by 12.4% than commercially available foamed styrene sheet material.
Claims (10)
1. the preparation method of retardant expanded polystyrene resin, is characterized in that the preparation method of retardant expanded polystyrene resin carries out according to following steps:
One, 0.15 ~ 0.42 part of calcium phosphate, 0.002 ~ 0.01 part of Sodium dodecylbenzene sulfonate, 150 ~ 300 parts of deionized waters, 0.5 ~ 0.95 part of fire retardant, 100 parts of styrene monomers and 0.4 ~ 0.7 part of dibenzoyl peroxide is taken according to parts by weight;
Two, 0.13 ~ 25 weight part sodium pyrosulfate or 0.13 ~ 25 part by weight of cellulose, calcium phosphate, Sodium dodecylbenzene sulfonate and deionized water are carried out in a kettle. mixing under the condition of 70 ~ 75 DEG C and stirring and dissolving, obtain the first mixture;
Three, fire retardant, styrene monomer and dibenzoyl peroxide are added in the first mixture, then react 5 ~ 7 hours at 87 ~ 91 DEG C, obtain the second mixture;
Four, by the second mixture after 95 DEG C of reaction 30min, in the second mixture, add pentane, then closed reactor be filled with nitrogen and make pressure reach 5 ~ 5.5MPa, be then warmed up to 120 DEG C and reach 8 ~ 9MPa to the pressure in reactor, carry out reaction 8 hours; Cooled by reactor, treat that temperature is down to 50 ~ 40 DEG C, venting, pressure is zero rear discharging, washing, and dries under room temperature, obtains retardant expanded polystyrene resin;
Fire retardant described in step one is made up of the red phosphorus of the hexabromocyclododecane of 0.15 ~ 0.24 mass parts, the antimonous oxide of 0.05 ~ 0.20 mass parts, the magnesium hydroxide of 0.1 ~ 0.3 mass parts and 0.10 ~ 0.21 mass parts;
The graphite of 0.85 ~ 2 weight part is dissolved with in 100 weight parts of styrene monomer described in step one;
Pentane addition described in step 4 is 8 ~ 9% of styrene monomer quality.
2. the preparation method of retardant expanded polystyrene resin according to claim 1, is characterized in that taking 0.2 ~ 0.4 part of calcium phosphate, 0.006 ~ 0.01 part of Sodium dodecylbenzene sulfonate, 180 ~ 280 parts of deionized waters, 0.6 ~ 0.9 part of fire retardant, 100 parts of styrene monomers and 0.4 part of dibenzoyl peroxide according to parts by weight in step one.
3. the preparation method of retardant expanded polystyrene resin according to claim 1, is characterized in that taking 0.3 part of calcium phosphate, 0.008 ~ 0.01 part of Sodium dodecylbenzene sulfonate, 200 ~ 250 parts of deionized waters, 0.7 part of fire retardant, 100 parts of styrene monomers and 0.5 part of dibenzoyl peroxide according to parts by weight in step one.
4. the preparation method of retardant expanded polystyrene resin according to claim 1, is characterized in that taking 0.35 part of calcium phosphate, 0.009 part of Sodium dodecylbenzene sulfonate, 210 parts of deionized waters, 0.8 part of fire retardant, 100 parts of styrene monomers and 0.6 part of dibenzoyl peroxide according to parts by weight in step one.
5. the preparation method of retardant expanded polystyrene resin according to claim 1, is characterized in that sodium pyrosulfate or Mierocrystalline cellulose, calcium phosphate, Sodium dodecylbenzene sulfonate and deionized water being carried out in a kettle. mixing in step 2 under the condition of 73 DEG C and stirring and dissolving.
6. the preparation method of retardant expanded polystyrene resin according to claim 1, is characterized in that reacting 6 hours at 90 DEG C in step 3.
7. the preparation method of retardant expanded polystyrene resin according to claim 1, is characterized in that closed reactor in step 4 and is filled with nitrogen making pressure reach 5.2MPa.
8. the preparation method of retardant expanded polystyrene resin according to claim 1, is characterized in that being warmed up to 120 DEG C in step 4 reaches 8.5MPa to the pressure in reactor.
9. the preparation method of retardant expanded polystyrene resin according to claim 1, is characterized in that the pentane addition described in step 4 is 8.5% of styrene monomer quality.
10. the preparation method of retardant expanded polystyrene resin according to claim 1, is characterized in that treating in step 4 that temperature is down to 45 DEG C of venting.
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| CN103509144B (en) * | 2013-09-16 | 2016-02-24 | 胥明 | High flame-retardant foamed polystyrene resin and preparation method thereof |
| CN104059185A (en) * | 2014-06-18 | 2014-09-24 | 安徽圣源橡塑科技有限公司 | Flame-retardant polystyrene composite material and preparation method thereof |
| CN104804213A (en) * | 2015-05-08 | 2015-07-29 | 北京理工大学 | Preparation method of in-situ halogen-free flame-retardant expandable polystyrene |
| CN106117398A (en) * | 2016-01-14 | 2016-11-16 | 新疆蓝山屯河新材料有限公司 | A kind of high fire-retardance low conductive graphite expandable polystyrene product and the production method of this product |
| CN106046230A (en) * | 2016-08-19 | 2016-10-26 | 四川中物红宇科技有限公司 | Polystyrene resin and applications thereof |
| CN107189252A (en) * | 2017-06-29 | 2017-09-22 | 哈尔滨工业大学 | The preparation method of polymerizable phosphorus flame retardant and the preparation method of flame-proofed polystyrene |
| CN107236203A (en) * | 2017-07-24 | 2017-10-10 | 谢泳江 | A kind of preparation method of fire-proof light construction material |
| CN107400302A (en) * | 2017-07-24 | 2017-11-28 | 谢泳江 | A kind of preparation method of hard building thermal insulation material |
| CN113088010A (en) * | 2021-03-19 | 2021-07-09 | 青岛荣发保温材料有限公司 | Preparation method of EPS foam product |
| CN116084625A (en) * | 2023-02-27 | 2023-05-09 | 浙江乔老爷铝业有限公司 | Internally-filled heat-insulating aluminum alloy section bar and production process thereof |
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| CN101092462A (en) * | 2007-06-14 | 2007-12-26 | 华若中 | Expandable granules of polystyrene and prepartion method |
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| CN101092462A (en) * | 2007-06-14 | 2007-12-26 | 华若中 | Expandable granules of polystyrene and prepartion method |
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