CN1907684A - Method of preparing polystyrene extrusion molding cystosepiment by polystyrene recovery material - Google Patents
Method of preparing polystyrene extrusion molding cystosepiment by polystyrene recovery material Download PDFInfo
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- CN1907684A CN1907684A CNA2006100413442A CN200610041344A CN1907684A CN 1907684 A CN1907684 A CN 1907684A CN A2006100413442 A CNA2006100413442 A CN A2006100413442A CN 200610041344 A CN200610041344 A CN 200610041344A CN 1907684 A CN1907684 A CN 1907684A
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- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
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Abstract
The invention relates to a method for using foam polyphenylacetylene to produce polyphenylacetylene extruded plastic foam plate, which comprises: (1), classifying the foam polyphenylacetylene material via colors; (2) breaking said material, and making particle in the particle maker, while the temperature is 160-200Deg. C; (3), collecting the particles, adding agent, mixing, while the ratio between the particles and the agent is 100:0-10; (4) mixing and fusing said particles in plastic extruder, adding carbon dioxide foaming agent, to foam, while the mass ratio between the particle and the foaming agent is 100:4-15, to be extruded from mould, to obtain the foam plastic plate.
Description
Technical field
What the present invention relates to is a kind of process of utilizing the expandable polystyrene reclaimed materials to produce polyphenyl second extrusion molding foam-board (plastic extrusion heated board).
Background technology
As everyone knows, the application of thermoplastics such as polyethylene, polystyrene, polypropylene is very extensive.For example: styrene polymer foaming plate is widely used as building thermal insulation material, tame package material, and polyethylene, polypropylene foam are widely used as packaging material.Extrusion foaming again after thermoplastic such as polystyrene, polyethylene injects through low-boiling foaming agent forms the tiny cell hole and the cystosepiment of relatively stable full-closed structure.Cystosepiment also is used in house decoration field and field of product packaging such as decoration, decorative panel except that being applied in fields such as building field, civil engineering and freezer thermal insulation.In a long time, by utilization fluorochlorohydrocarbon (CFC`S, HCFC`S) thermoplastics such as polyethylene, polystyrene, polypropylene are foamed.Owing to be subjected to the increase of ambient influnence degree such as relevant ozone depletion, greenhouse effects and air quality on the whole, strengthening and making great efforts to go be taken as the fluorochlorohydrocarbon blowing agent that low-boiling foaming agent uses in the alternative industry of foaming at present with the receptible low-boiling foaming agent of environment.
Summary of the invention
The objective of the invention is provides a kind of foamed polystyrene reclaimed materials that utilizes to produce the polystyrene extrusion molding foam-board method at above-mentioned weak point, make low-boiling foaming agent owing to adopt carbon dioxide combined foaming agent, the product density that the polystyrene foam reclaimed materials is produced is lower, performance is more stable, solves the part environmental issue in the whole world simultaneously.Can reduce carbon dioxide in air content with carbon dioxide foaming agent, solve the greenhouse effects of the earth, replace fluorochlorohydrocarbon blowing agent (CFC`S), can avoid the influence of fluorochlorohydrocarbon blowing agent (CFC`S) ozone layer with carbon dioxide foaming agent.
Utilizing the foamed polystyrene reclaimed materials to produce the polystyrene extrusion molding foam-board method takes following scheme to realize:
Utilize foamed polystyrene reclaimed materials production polystyrene extrusion molding foam-board method to be:
1, the foamed polystyrene reclaimed materials is classified: the foamed polystyrene reclaimed materials is pressed color classification, removal of contamination;
2, above-mentioned classification is good foamed polystyrene reclaimed materials is pulverized, and pulverizes after extruding granulator carries out granulation, filters through filter screen in granulation process, further removal of contamination, and the extruding pelletization temperature is controlled at 160 ℃～200 ℃;
3, above-mentioned foamed polystyrene reclaimed materials plastic pellet is put into mixer, add auxiliary agent, mix, foamed polystyrene reclaimed materials plastic pellet and auxiliary agent weight ratio are 100: 0～10, and auxiliary agent adopts a kind of or mixture in nucleator, fire retardant, the Masterbatch.Foamed polystyrene reclaimed materials plastic pellet and nucleator weight proportion are: 100: 0～1, and foamed polystyrene reclaimed materials plastic pellet and Masterbatch weight ratio are 100: 0～2, foamed polystyrene reclaimed materials plastic pellet and fire retardant weight ratio are 100: 0～7;
4, with the above-mentioned foamed polystyrene reclaimed materials plastic pellet injecting carbon dioxide combined foaming agent behind the plastic extruder mixed melting that is mixed with auxiliary agent, the foamed polystyrene reclaimed materials plastic pellet and the carbon dioxide combined foaming agent weight proportion that are mixed with auxiliary agent are 100: 4～15, further mix cooling again after injecting blowing agent, mixing chilling temperature is 100 ℃～135 ℃, the cooling of employing water leg, quantitatively extrude through mould, cooling, setting, promptly obtain polystyrene extrusion molding foam-board, claim the polystyrene extruded plastic warming plate again, be called for short plastic extrusion heated board.
Carbon dioxide combined foaming agent is to be Main Ingredients and Appearance with the liquid CO 2, and alcohols or alkanes form as less important composition mixed preparing, and its raw material weight percentage is: carbon dioxide 10～90%: alcohols or alkanes 90～10%.
Carbon dioxide combined foaming agent preparation method: connect the liquid carbon dioxide storage tank by measuring pump, be injected into the mixing storage tank by the proportioning metering, connect alcohols or alkanes storage tank with measuring pump, be injected into the mixing storage tank by the proportioning metering, fully mix with the mixing circulation pump in mixing storage tank, blend pressure is 10～50kg/cm
2, mixing temperature is 0～-30 ℃, makes the liquid carbon dioxide combined foaming agent.
Above-described alcohols is selected a kind of or mixture in methyl alcohol, ethanol, propyl alcohol, the butanols for use, and above-described alkanes is selected a kind of or mixture in methane, ethane, butane, iso-butane, pentane, the isopentane for use.
Described nucleator adopts a kind of or mixture in talcum powder, calcium carbonate, lime, the quartz.
Described Masterbatch adopts pigment+polystyrene parent.Fire retardant adopts hexabromo dodecane etc.
Utilize the polystyrene reclaimed materials to produce polystyrene extrusion molding foam-board method characteristics:
The reclaimed materials polystyrene foam because through granulation again, its melt flow rate (MFR) obviously reduce (10～30m/5s), in foaming process, be difficult to accomplish the extruded sheet in less dense, full cut-off hole.Employing at present all is the waste and old polystyrol reclaimed materials of melt flow rate (MFR) at 10～30m/5s, and it is too high to adopt lower boiling carbon dioxide can make that the pressure of system requires, and equipment and technology are difficult to accomplish more low production unit weight requirement.The carbon dioxide boiling point is-78.5 ℃, accomplish higher product quality, lower density in order to make the recovery polystyrene, carbon dioxide foaming agent is improved, add alcohols or alkanes component, the characteristic of carbon dioxide in foaming process improved, the product density that the polystyrene foam reclaimed materials is produced is lower, performance is more stable, solves the part environmental issue in the whole world simultaneously.Can reduce carbon dioxide in air content with carbon dioxide foaming agent, solve the greenhouse effects of the earth, replace fluorochlorohydrocarbon blowing agent (CFC`S), can avoid the influence of fluorochlorohydrocarbon blowing agent (CFC`S) ozone layer with carbon dioxide foaming agent.Thereby utilize the polystyrene reclaimed materials to produce polystyrene extrusion molding foam-board and can make full use of waste and old polystyrol solution white pollution problems.
The specific embodiment
Embodiment 1,
Utilize the foamed polystyrene reclaimed materials to produce polystyrene extrusion molding foam-board:
1, the foamed polystyrene reclaimed materials is classified: the foamed polystyrene reclaimed materials is pressed color classification, removal of contamination;
2, above-mentioned classification is good foamed polystyrene reclaimed materials is pulverized, and pulverizes after extruding granulator carries out granulation, filters through filter screen in granulation process, further removal of contamination, and the extruding pelletization temperature is controlled at 160 ℃;
3, with above-mentioned foamed polystyrene reclaimed materials plastic pellet 100Kg injecting carbon dioxide combined foaming agent 4Kg behind the plastic extruder mixed melting, foamed polystyrene reclaimed materials plastic pellet and carbon dioxide combined foaming agent weight proportion are 100: 4, further mix cooling again after injecting blowing agent, mixing chilling temperature is 100 ℃, the cooling of employing water leg, quantitatively extrude through mould, cooling, setting, promptly obtain polystyrene extrusion molding foam-board, claim the polystyrene extruded plastic warming plate again, be called for short plastic extrusion heated board.
Embodiment 2,
Utilize the foamed polystyrene reclaimed materials to produce polystyrene extrusion molding foam-board:
1, the foamed polystyrene reclaimed materials is classified: the foamed polystyrene reclaimed materials is pressed color classification, removal of contamination;
2, above-mentioned classification is good foamed polystyrene reclaimed materials is pulverized, and pulverizes after extruding granulator carries out granulation, filters through filter screen in granulation process, further removal of contamination, and the extruding pelletization temperature is controlled at 200 ℃;
3, above-mentioned foamed polystyrene reclaimed materials plastic pellet 100Kg is put into mixer, add auxiliary agent 10Kg, mix, foamed polystyrene reclaimed materials plastic pellet and auxiliary agent weight ratio are 100: 10, and auxiliary agent adopts the mixture in nucleator, flame retardant, the Masterbatch.The nucleator weight ratio is 1 in the auxiliary agent, adopts talcum powder, calcium carbonate mixture 1Kg; The Masterbatch weight ratio is 2, adopts pigment+polystyrene parent 2Kg; The fire retardant weight ratio is 7, adopts hexabromo dodecane 7Kg;
4, with the above-mentioned foamed polystyrene reclaimed materials plastic pellet injecting carbon dioxide combined foaming agent 16.5Kg behind the plastic extruder mixed melting that is mixed with auxiliary agent, the foamed polystyrene reclaimed materials plastic pellet and the carbon dioxide combined foaming agent weight proportion that are mixed with auxiliary agent are 100: 15, further mix cooling again after injecting blowing agent, mixing chilling temperature is 135 ℃, the cooling of employing water leg, quantitatively extrude through mould, cooling, setting, promptly obtain polystyrene extrusion molding foam-board, claim the polystyrene extruded plastic warming plate again, be called for short plastic extrusion heated board.
Embodiment 3,
Utilize the foamed polystyrene reclaimed materials to produce polystyrene extrusion molding foam-board:
1, the foamed polystyrene reclaimed materials is classified: the foamed polystyrene reclaimed materials is pressed color classification, removal of contamination;
2, above-mentioned classification is good foamed polystyrene reclaimed materials is pulverized, and pulverizes after extruding granulator carries out granulation, filters through filter screen in granulation process, further removal of contamination, and the extruding pelletization temperature is controlled at 180 ℃;
3, above-mentioned foamed polystyrene reclaimed materials plastic pellet 100Kg is put into mixer, add auxiliary agent 5Kg, mix, foamed polystyrene reclaimed materials plastic pellet and auxiliary agent weight ratio are 100: 5, and the nucleator weight ratio is 0.5 in the auxiliary agent, adopt calcium carbonate 0.5Kg, the Masterbatch weight ratio is 1, adopt pigment+polystyrene parent 1Kg, the fire retardant weight ratio is 3.5, adopts hexabromo dodecane 3.5Kg;
4, with the above-mentioned foamed polystyrene reclaimed materials plastic pellet injecting carbon dioxide combined foaming agent 10.5Kg behind the plastic extruder mixed melting that is mixed with auxiliary agent, the foamed polystyrene reclaimed materials plastic pellet and the carbon dioxide combined foaming agent weight proportion that are mixed with auxiliary agent are 100: 10, further mix cooling again after injecting blowing agent, mixing chilling temperature is 120 ℃, the cooling of employing water leg, quantitatively extrude through mould, cooling, setting, promptly obtain polystyrene extrusion molding foam-board, claim the polystyrene extruded plastic warming plate again, be called for short plastic extrusion heated board.
Embodiment 4,
Utilize the foamed polystyrene reclaimed materials to produce polystyrene extrusion molding foam-board:
1, the foamed polystyrene reclaimed materials is classified: the foamed polystyrene reclaimed materials is pressed color classification, removal of contamination;
2, above-mentioned classification is good foamed polystyrene reclaimed materials is pulverized, and pulverizes after extruding granulator carries out granulation, filters through filter screen in granulation process, further removal of contamination, and the extruding pelletization temperature is controlled at 200 ℃;
3, above-mentioned foamed polystyrene reclaimed materials plastic pellet 100Kg is put into mixer, add auxiliary agent 10Kg, mix, foamed polystyrene reclaimed materials plastic pellet and auxiliary agent weight ratio are 100: 10, and auxiliary agent adopts the mixture in nucleator, flame retardant, the Masterbatch.The nucleator weight ratio is 1 in the auxiliary agent, adopts talcum powder, calcium carbonate, lime, quartz mixture 1Kg; The Masterbatch weight ratio is 2, adopts pigment+polystyrene parent 2Kg; The fire retardant weight ratio is 7, adopts hexabromo dodecane 7Kg;
4, with the above-mentioned foamed polystyrene reclaimed materials plastic pellet injecting carbon dioxide combined foaming agent 16.5Kg behind the plastic extruder mixed melting that is mixed with auxiliary agent, the foamed polystyrene reclaimed materials plastic pellet and the carbon dioxide combined foaming agent weight proportion that are mixed with auxiliary agent are 100: 15, further mix cooling again after injecting blowing agent, mixing chilling temperature is 135 ℃, the cooling of employing water leg, quantitatively extrude through mould, cooling, setting, promptly obtain polystyrene extrusion molding foam-board, claim the polystyrene extruded plastic warming plate again, be called for short plastic extrusion heated board.
Embodiment 5,
Utilize the foamed polystyrene reclaimed materials to produce polystyrene extrusion molding foam-board:
1, the foamed polystyrene reclaimed materials is classified: the foamed polystyrene reclaimed materials is pressed color classification, removal of contamination;
2, above-mentioned classification is good foamed polystyrene reclaimed materials is pulverized, and pulverizes after extruding granulator carries out granulation, filters through filter screen in granulation process, further removal of contamination, and the extruding pelletization temperature is controlled at 180 ℃;
3, above-mentioned foamed polystyrene reclaimed materials plastic pellet 100Kg is put into mixer, add auxiliary agent 5Kg, mix, foamed polystyrene reclaimed materials plastic pellet and auxiliary agent weight ratio are 100: 10, and the nucleator weight ratio is 1 in the auxiliary agent, adopt calcium carbonate 1Kg, the Masterbatch weight ratio is 2, adopt pigment+polystyrene parent 2Kg, the fire retardant weight ratio is 7, adopts hexabromo dodecane 7Kg;
4, with the above-mentioned foamed polystyrene reclaimed materials plastic pellet injecting carbon dioxide combined foaming agent 11Kg behind the plastic extruder mixed melting that is mixed with auxiliary agent, the foamed polystyrene reclaimed materials plastic pellet and the carbon dioxide combined foaming agent weight proportion that are mixed with auxiliary agent are 100: 10, further mix cooling again after injecting blowing agent, mixing chilling temperature is 135 ℃, the cooling of employing water leg, quantitatively extrude through mould, cooling, setting, promptly obtain polystyrene extrusion molding foam-board, claim the polystyrene extruded plastic warming plate again, be called for short plastic extrusion heated board.
Embodiment 6,
Utilize the foamed polystyrene reclaimed materials to produce polystyrene extrusion molding foam-board:
1, the foamed polystyrene reclaimed materials is classified: the foamed polystyrene reclaimed materials is pressed color classification, removal of contamination;
2, above-mentioned classification is good foamed polystyrene reclaimed materials is pulverized, and pulverizes after extruding granulator carries out granulation, filters through filter screen in granulation process, further removal of contamination, and the extruding pelletization temperature is controlled at 180 ℃;
3, above-mentioned foamed polystyrene reclaimed materials plastic pellet 100Kg is put into mixer, add auxiliary agent 5Kg, mix, foamed polystyrene reclaimed materials plastic pellet and auxiliary agent weight ratio are 100: 5, and the nucleator weight ratio is 0.5 in the auxiliary agent, adopt talcum powder 0.5Kg, the Masterbatch weight ratio is 1, adopt pigment+polystyrene parent 1Kg, the fire retardant weight ratio is 3.5, adopts hexabromo dodecane 3.5Kg;
4, with the above-mentioned foamed polystyrene reclaimed materials plastic pellet injecting carbon dioxide combined foaming agent 10.5Kg behind the plastic extruder mixed melting that is mixed with auxiliary agent, the foamed polystyrene reclaimed materials plastic pellet and the carbon dioxide combined foaming agent weight proportion that are mixed with auxiliary agent are 100: 10, further mix cooling again after injecting blowing agent, mixing chilling temperature is 120 ℃, the cooling of employing water leg, quantitatively extrude through mould, cooling, setting, promptly obtain polystyrene extrusion molding foam-board, claim the polystyrene extruded plastic warming plate again, be called for short plastic extrusion heated board.
Embodiment 7, carbon dioxide combined foaming agent preparation
Carbon dioxide combined foaming agent is with liquid CO 2 (CO
2) be Main Ingredients and Appearance, alcohols forms as less important composition mixed preparing, and its raw material weight percentage is: carbon dioxide 10%, ethanol 90%;
Carbon dioxide combined foaming agent preparation method: connect the liquid carbon dioxide storage tank by plunger metering pump, be injected into the mixing storage tank by the said ratio metering, connect the alcohols storage tank with plunger metering pump, by being injected into the mixing storage tank by the said ratio metering, fully mix with the mixing circulation pump in mixing storage tank, blend pressure is 50kg/cm
2, mixing temperature is 0 ℃, makes the liquid carbon dioxide combined foaming agent.
Embodiment 8, carbon dioxide combined foaming agent preparation
Carbon dioxide combined foaming agent is with liquid CO 2 (CO
2) be Main Ingredients and Appearance, alcohols forms as less important composition mixed preparing, and its raw material weight percentage is: carbon dioxide 90%, ethanol 10%;
Carbon dioxide combined foaming agent preparation method: connect the liquid carbon dioxide storage tank by plunger pressure measurement pump, be injected into the mixing storage tank by the said ratio metering, connect alcohols or alkanes storage tank with plunger metering pump, be injected into the mixing storage tank by the said ratio metering, fully mix with the mixing circulation pump in mixing storage tank, blend pressure is 10kg/cm
2, mixing temperature is-30 ℃, makes the liquid carbon dioxide combined foaming agent.
Embodiment 9, carbon dioxide combined foaming agent preparation
Carbon dioxide combined foaming agent is with liquid CO 2 (CO
2) be Main Ingredients and Appearance, alcohols forms as less important composition mixed preparing, and its raw material weight percentage is: carbon dioxide 90%, propyl alcohol 10%;
Carbon dioxide combined foaming agent preparation method: connect the liquid carbon dioxide storage tank by plunger pressure measurement pump, be injected into the mixing storage tank by the said ratio metering, connect alcohols or alkanes storage tank with plunger metering pump, be injected into the mixing storage tank by the said ratio metering, fully mix with the mixing circulation pump in mixing storage tank, blend pressure is 10kg/cm
2, mixing temperature is-30 ℃, makes the liquid carbon dioxide combined foaming agent.
Embodiment 10, carbon dioxide combined foaming agent preparation
Carbon dioxide combined foaming agent is with liquid CO 2 (CO
2) be Main Ingredients and Appearance, alcohols forms as less important composition mixed preparing, and its raw material weight percentage is: carbon dioxide 90%, methyl alcohol 10%;
Carbon dioxide combined foaming agent preparation method: connect the liquid carbon dioxide storage tank by plunger pressure measurement pump, be injected into the mixing storage tank by the said ratio metering, connect alcohols or alkanes storage tank with plunger metering pump, be injected into the mixing storage tank by the said ratio metering, fully mix with the mixing circulation pump in mixing storage tank, blend pressure is 10kg/cm
2, mixing temperature is-30 ℃, makes the liquid carbon dioxide combined foaming agent.
Embodiment 11, carbon dioxide combined foaming agent preparation
Carbon dioxide combined foaming agent is with liquid CO 2 (CO
2) be Main Ingredients and Appearance, alcohols forms as less important composition mixed preparing, and its raw material weight percentage is: carbon dioxide 80%, butanols 20%;
Carbon dioxide combined foaming agent preparation method: connect the liquid carbon dioxide storage tank by plunger pressure measurement pump, be injected into the mixing storage tank by the said ratio metering, connect alcohols or alkanes storage tank with plunger metering pump, be injected into the mixing storage tank by the said ratio metering, fully mix with the mixing circulation pump in mixing storage tank, blend pressure is 10kg/cm
2, mixing temperature is-30 ℃, makes the liquid carbon dioxide combined foaming agent.
Embodiment 12, carbon dioxide combined foaming agent preparation
Carbon dioxide combined foaming agent is with liquid CO 2 (CO
2) be Main Ingredients and Appearance, alcohols forms as less important composition mixed preparing, and its raw material weight percentage is: carbon dioxide 60%, ethanol 40%;
Carbon dioxide combined foaming agent preparation method: connect the liquid carbon dioxide storage tank by plunger pressure measurement pump, be injected into the mixing storage tank by the said ratio metering, connect alcohols or alkanes storage tank with plunger metering pump, be injected into the mixing storage tank by the said ratio metering, fully mix with the mixing circulation pump in mixing storage tank, blend pressure is 25kg/cm
2, mixing temperature is-20 ℃, makes the liquid carbon dioxide combined foaming agent.
Embodiment 13, carbon dioxide combined foaming agent preparation
Carbon dioxide combined foaming agent is with liquid CO 2 (CO
2) be Main Ingredients and Appearance, alcohols or alkanes form as less important composition mixed preparing, and its raw material weight percentage is: the mixture 40% of carbon dioxide 60%, ethanol, propyl alcohol;
Carbon dioxide combined foaming agent preparation method: connect the liquid carbon dioxide storage tank by plunger metering pump, be injected into the mixing storage tank by the proportioning metering, connect alcohols or alkanes storage tank with plunger metering pump, be injected into the mixing storage tank by the proportioning metering, fully mix with the mixing circulation pump in mixing storage tank, blend pressure is 30kg/cm
2, mixing temperature is-15 ℃, makes the liquid carbon dioxide combined foaming agent.
Embodiment 14, carbon dioxide combined foaming agent preparation
Carbon dioxide combined foaming agent is with liquid CO 2 (CO
2) be Main Ingredients and Appearance, alkanes forms as less important composition mixed preparing, and its raw material weight percentage is: carbon dioxide 10%, butane 90%;
Carbon dioxide combined foaming agent preparation method: connect the liquid carbon dioxide storage tank by plunger metering pump, be injected into the mixing storage tank by the said ratio metering, connect alcohols or alkanes storage tank with plunger metering pump, be injected into the mixing storage tank by the said ratio metering, fully mix with the mixing circulation pump in mixing storage tank, blend pressure is 10kg/cm
2, mixing temperature is-30 ℃, makes the liquid carbon dioxide combined foaming agent.
Embodiment 15, carbon dioxide combined foaming agent preparation
Carbon dioxide combined foaming agent is with liquid CO 2 (CO
2) be Main Ingredients and Appearance, alkanes forms as less important composition mixed preparing, and its raw material weight percentage is: carbon dioxide 60%, butane 40%;
Carbon dioxide combined foaming agent preparation method: connect the liquid carbon dioxide storage tank by plunger metering pump, be injected into the mixing storage tank by the said ratio metering, connect alcohols or alkanes storage tank with plunger metering pump, be injected into the mixing storage tank by the said ratio metering, fully mix with the mixing circulation pump in mixing storage tank, blend pressure is 25kg/cm
2, mixing temperature is-20 ℃, makes the liquid carbon dioxide combined foaming agent.
Embodiment 16, carbon dioxide combined foaming agent preparation
Carbon dioxide combined foaming agent is with liquid CO 2 (CO
2) be Main Ingredients and Appearance, alkanes forms as less important composition mixed preparing, and its raw material weight percentage is: carbon dioxide 60%, pentane 40%;
Carbon dioxide combined foaming agent preparation method: connect the liquid carbon dioxide storage tank by plunger metering pump, be injected into the mixing storage tank by the said ratio metering, connect alcohols or alkanes storage tank with plunger metering pump, be injected into the mixing storage tank by the said ratio metering, fully mix with the mixing circulation pump in mixing storage tank, blend pressure is 25kg/cm
2, mixing temperature is-20 ℃, makes the liquid carbon dioxide combined foaming agent.
Embodiment 17, carbon dioxide combined foaming agent preparation
Carbon dioxide combined foaming agent is with liquid CO 2 (CO
2) be Main Ingredients and Appearance, alkanes forms as less important composition mixed preparing, and its raw material weight percentage is: the mixture 40% of carbon dioxide 60%, butane, pentane;
Carbon dioxide combined foaming agent preparation method: connect the liquid carbon dioxide storage tank by plunger metering pump, be injected into the mixing storage tank by the said ratio metering, connect alcohols or alkanes storage tank with plunger metering pump, be injected into the mixing storage tank by the said ratio metering, fully mix with the mixing circulation pump in mixing storage tank, blend pressure is 30kg/cm
2, mixing temperature is-20 ℃, makes the liquid carbon dioxide combined foaming agent.
Carbon dioxide combined foaming agent (material component Different Weight proportioning) is applied to utilize the foamed polystyrene reclaimed materials to produce the detection data that the polystyrene extrusion molding foam-board method is produced the foaming plate:
Table 1
| Material component weight proportion (percentage): | CO 2/ butane 60%/40% | CO2/ pentane 60%/40% | CO2/ butane, pentane 60%: 40% |
| Blowing temperature | 121℃ | 121℃ | 121℃ |
| The foaming plate thickness | 50mm | 50mm | 50mm |
| Testing result | |||
| Density | 37kg/m3 | 35kg/m3 | 39kg/m3 |
| Compression strength | 290kpa | 265kpa | 261kpa |
| Thermal conductivity factor | 0.029 | 0.028 | 0.03 |
| Dimensional stability | |||
| Width (W) | -0.50％ | -0.3％ | -0.4％ |
| Length (L) | -2.20％ | -2.8％ | -1.9％ |
| Thickness (T) | -0.1％ | -0.2％ | -0.18％ |
Carbon dioxide combined foaming agent (material component Different Weight proportioning) is applied to utilize the foamed polystyrene reclaimed materials to produce the detection data that the polystyrene extrusion molding foam-board method is produced the foaming plate:
Table 2
| Material component weight proportion (percentage): | CO 2/ ethanol 60%/40% | CO2/ propyl alcohol 60%/40% | CO2/ ethanol, propyl alcohol 60%/40% |
| Blowing temperature | 128℃ | 128℃ | 128℃ |
| The foaming plate thickness | 50mm | 50mm | 50mm |
| Testing result | |||
| Density | 36kg/m3 | 35kg/m3 | 37kg/m3 |
| Compression strength | 255kpa | 220kpa | 238kpa |
| Thermal conductivity factor | 0.03 | 0.029 | 0.028 |
| Dimensional stability | |||
| Width (W) | 0％ | -0.3％ | -1.0％ |
| Length (L) | -0.8％ | -1.2％ | -1.5％ |
| Thickness (T) | -0.1％ | -0.6％ | -0.7％ |
Above-mentioned carbon dioxide combined foaming agent (material component Different Weight proportioning) is applied to utilize the foamed polystyrene reclaimed materials to produce the specification requirement that the polystyrene extrusion molding foam-board method is produced the middle X250 standard code of detection data fit GB/T10801.2-2002 " extrusion molding polystyrene polyfoam for heat insulation (XPS) " of foaming plate.
Adopt the inventive method to utilize the foamed polystyrene reclaimed materials to produce polystyrene extrusion molding foam-board, be called for short plastic extrusion heated board.Check the specification requirement that meets X250 standard code among the GB/T10801.2-2002 " extrusion molding polystyrene polyfoam for heat insulation (XPS) " fully through national plastic products quality supervision and inspection center.
Country plastic products quality supervision and inspection center
The survey report attached sheet
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Sample title: polystyrene extruded plastic warming plate
Other explanations of sample and sampling: sample is yellowish color lump.The standard-required thermal conductivity factor detects should be from carrying out after placing 90 days under the environmental condition from the product production, and other performance is carried out after placing 45 days.The sample storage time of this report meets standard-required.
Test basis: GB/T 10801.2-2002 " extrusion molding polystyrene polyfoam for heat insulation (XPS) ".
Claims (6)
1, a kind of foamed polystyrene reclaimed materials that utilizes is produced the polystyrene extrusion molding foam-board method, it is characterized in that
(1) the foamed polystyrene reclaimed materials is classified: the foamed polystyrene reclaimed materials is pressed color classification, removal of contamination;
(2) above-mentioned classification is good foamed polystyrene reclaimed materials is pulverized, and pulverizes after extruding granulator carries out granulation, filters through filter screen in granulation process, further removal of contamination, and the extruding pelletization temperature is controlled at 160 ℃～200 ℃;
(3) above-mentioned foamed polystyrene reclaimed materials plastic pellet is put into mixer, add auxiliary agent, mix, foamed polystyrene reclaimed materials plastic pellet and auxiliary agent weight proportion are 100: 0～10;
(4) with the above-mentioned foamed polystyrene reclaimed materials plastic pellet injecting carbon dioxide combined foaming agent behind the plastic extruder mixed melting that is mixed with auxiliary agent, the foamed polystyrene reclaimed materials plastic pellet and the carbon dioxide combined foaming agent weight proportion that are mixed with auxiliary agent are 100: 4～15, further mix cooling again after injecting blowing agent, mixing chilling temperature is 100 ℃～135 ℃, the cooling of employing water leg, quantitatively extrude through mould, cooling, setting promptly obtain polystyrene extrusion molding foam-board.
2, the foamed polystyrene reclaimed materials that utilizes according to claim 1 is produced the polystyrene extrusion molding foam-board method, it is characterized in that described auxiliary agent adopts a kind of or mixture in nucleator, fire retardant, the Masterbatch, foamed polystyrene reclaimed materials plastic pellet and nucleator weight ratio are 100: 0～1, foamed polystyrene reclaimed materials plastic pellet and Masterbatch weight ratio are 100: 0～2, and foamed polystyrene reclaimed materials plastic pellet and fire retardant weight ratio are 100: 0～7.
3, the foamed polystyrene reclaimed materials that utilizes according to claim 2 is produced the polystyrene extrusion molding foam-board method, it is characterized in that nucleator adopts a kind of or mixture in talcum powder, calcium carbonate, lime, the quartz; Masterbatch adopts pigment+polystyrene parent; Fire retardant adopts the hexabromo dodecane.
4, the foamed polystyrene reclaimed materials that utilizes according to claim 1 is produced the polystyrene extrusion molding foam-board method, it is characterized in that carbon dioxide combined foaming agent is is Main Ingredients and Appearance with the liquid CO 2, alcohols or alkanes form as less important composition mixed preparing, and its raw material weight percentage is: carbon dioxide 10～90%: alcohols or alkanes 90～10%.
5, produce the polystyrene extrusion molding foam-board method according to claim 1 or the 4 described foamed polystyrene reclaimed materials that utilize, it is characterized in that the carbon dioxide combined foaming agent preparation method: connect the liquid carbon dioxide storage tank by measuring pump, be injected into the mixing storage tank by the proportioning metering, connect alcohols or alkanes storage tank with measuring pump, be injected into the mixing storage tank by the proportioning metering, fully mix with the mixing circulation pump in mixing storage tank, blend pressure is 10～50kg/cm
2, mixing temperature is 0～-30 ℃, makes the liquid carbon dioxide combined foaming agent.
6, produce the polystyrene extrusion molding foam-board methods according to claim 1 or the 4 described foamed polystyrene reclaimed materials that utilize, it is characterized in that described alcohols selects a kind of or mixture in methyl alcohol, ethanol, propyl alcohol, the butanols for use; Described alkanes is selected a kind of or mixture in methane, ethane, butane, iso-butane, pentane, the isopentane for use.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101066620B (en) * | 2007-06-13 | 2010-06-02 | 东莞市奔迪包装有限公司 | Extrusion process and apparatus for producing foamed polyolefin product |
| CN101590689B (en) * | 2009-06-19 | 2011-11-16 | 上海天杰塑料制品有限公司 | Method for processing polystyrene foaming section |
| CN105196444A (en) * | 2015-09-21 | 2015-12-30 | 东港市华瑞彩钢有限公司 | Abandoned foam recovery system |
| CN106061702A (en) * | 2014-03-10 | 2016-10-26 | 苏舍化学技术有限公司 | A process to recycle expandable plastic materials and an expandable or expanded plastic material obtainable thereby |
| CN106832640A (en) * | 2017-03-29 | 2017-06-13 | 美雅迪（佛冈）家具制造有限公司 | A kind of PS synthetic plates and preparation method thereof |
| CN110003581A (en) * | 2019-04-23 | 2019-07-12 | 太仓幕阳节能科技有限公司 | A kind of novel XPS plastic extrusion heated board and preparation method thereof |
| CN111016226A (en) * | 2019-11-29 | 2020-04-17 | 无锡市明江保温材料有限公司 | Preparation method of polystyrene foam insulation board |
| CN115340699A (en) * | 2022-08-30 | 2022-11-15 | 四川伊斯派德新材料有限公司 | EPS (expandable polystyrene) recycling piece re-foaming system and method |
| CN115466458A (en) * | 2022-08-30 | 2022-12-13 | 四川伊斯派德新材料有限公司 | Method for manufacturing EPP foaming particles by utilizing EPP recovery piece |
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- 2006-08-16 CN CNA2006100413442A patent/CN1907684A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101066620B (en) * | 2007-06-13 | 2010-06-02 | 东莞市奔迪包装有限公司 | Extrusion process and apparatus for producing foamed polyolefin product |
| CN101590689B (en) * | 2009-06-19 | 2011-11-16 | 上海天杰塑料制品有限公司 | Method for processing polystyrene foaming section |
| CN106061702A (en) * | 2014-03-10 | 2016-10-26 | 苏舍化学技术有限公司 | A process to recycle expandable plastic materials and an expandable or expanded plastic material obtainable thereby |
| CN105196444A (en) * | 2015-09-21 | 2015-12-30 | 东港市华瑞彩钢有限公司 | Abandoned foam recovery system |
| CN106832640A (en) * | 2017-03-29 | 2017-06-13 | 美雅迪（佛冈）家具制造有限公司 | A kind of PS synthetic plates and preparation method thereof |
| CN110003581A (en) * | 2019-04-23 | 2019-07-12 | 太仓幕阳节能科技有限公司 | A kind of novel XPS plastic extrusion heated board and preparation method thereof |
| CN111016226A (en) * | 2019-11-29 | 2020-04-17 | 无锡市明江保温材料有限公司 | Preparation method of polystyrene foam insulation board |
| CN115340699A (en) * | 2022-08-30 | 2022-11-15 | 四川伊斯派德新材料有限公司 | EPS (expandable polystyrene) recycling piece re-foaming system and method |
| CN115466458A (en) * | 2022-08-30 | 2022-12-13 | 四川伊斯派德新材料有限公司 | Method for manufacturing EPP foaming particles by utilizing EPP recovery piece |
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