CN1654520A - Method for using waste polystyrene foam - Google Patents
Method for using waste polystyrene foam Download PDFInfo
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- CN1654520A CN1654520A CN 200410010676 CN200410010676A CN1654520A CN 1654520 A CN1654520 A CN 1654520A CN 200410010676 CN200410010676 CN 200410010676 CN 200410010676 A CN200410010676 A CN 200410010676A CN 1654520 A CN1654520 A CN 1654520A
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- cavity
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- polystyrene foam
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- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
The present invention belongs to the field of waste polymer utilizing technology, and is especially the method of utilizing waste foamed polystyrene. Waste polystyrene after being crushed is filled with compressed air or negative pressure into some closed cavity to form stuffed structure with certain strength. Or, polystyrene grains are mixed with adhesive inside some stirrer, and the mixture is filled with compressed air or negative pressure into some closed cavity to form stuffed structure with certain strength. The stuffed structure is used as heat insulating material, and has very low cost.
Description
Technical field
The invention belongs to waste material polymkeric substance reutilization technology field, be specifically related to the method for utilizing of waste polystyrene foam, international Patent classificating number: C08J 11/06.
Background technology
At present, polystyrene foam is because easy to use, cheap, be widely used in the wrapping material of electric products such as televisor, refrigerator and other commodity as product packaging material, but because polystyrene foam can't decompose in the Nature voluntarily, be seen everywhere after discarded, incineration process can produce the obnoxious flavour contaminate environment again, has become " white pollution " of polluting people's living environment.About the method for waste polystyrene foam, known method has following several: after waste polystyrene foam is dissolved with solvent, add some auxiliary agents again and make tackiness agent; With the waste polystyrene foam heating and melting, reclaim polystyrene resin after the deaeration; Moreover be after waste polystyrene foam is pulverized, stir with cement mortar and make the building materials warming plate.Aforesaid method respectively has characteristics, but does not make full use of the insulation filling function of polystyrene foam.
Summary of the invention
The purpose of this invention is to provide a kind of waste polystyrene foam that directly utilizes, be used as a kind of method of utilizing of a kind of waste polystyrene foam with heat insulation function stopping composition.
Technical scheme of the present invention is: with waste polystyrene foam, mainly be that the block polystyrene foam that is used as packing material is pulverized, the foam beads diameter after the pulverizing is usually at 6mm-20mm; If the cavity volume that is used for filling is bigger, and the size of minimum edge is also bigger, should be with the bigger pulverizing foam of particle diameter; On the contrary, the cavity volume that is used for filling is less, and the size of minimum edge is also less, just must select the bigger pulverizing foam of particle diameter for use.
What are determined by the volume size that is filled cavity to pulverize loading level of foamy, one time filler particles shape foamy heap volume should be a bit larger tham the cavity volume that will fill, both ratio is proper between 1.05-1.2, can guarantee that like this filling process can not interrupt.
Foam beads is filled into enclosed cavity (or near sealed hollow) will uses pressurized air or negative-pressure air-flow, when using pressurized air to fill, must around cavity, leave enough venting holes, can in time discharge so that enter the air-flow of cavity, could guarantee that so follow-up air-flow is filled into cavity to foam beads continuously, till filling up; If when using negative-pressure air-flow to fill, around cavity, must leave enough suction holes, be connected with vacuum pump, to guarantee having enough negative-pressure air-flows that foam beads is brought into cavity, till filling up.
If the foam beads after wish filling sticks into one, and foam beads also has certain bonding strength with the cavity internal surface, and that just need be coated with one deck tackiness agent in the surface to foam beads before filling.Relatively the tackiness agent of Shi Heing should be less emulsion adhesive of viscosity ratio or water soluble adhesive, as acrylic acid emulsion adhesive, aqurous ployurethane tackiness agent or the like.Specific operation process is: determine a less important filled and process particulate heap volume (should be a bit larger tham the volume of wanting cavity filling) according to the volume that is filled cavity, foam beads is dropped in the agitator, under stirring state, slowly add tackiness agent, from in appearance, an adhesion phenomenon is arranged between foam beads, is degree but can also be dispelled by air-flow, illustrate at this moment to add the glue amount just in time suitable, do not need to have added glue, next step just can begin to have filled.Its filling process and foam beads the surface not filling process of coating adhesive are the same.The foam beads that but has been coated with tackiness agent after filling, along with the curing gradually of tackiness agent can stick together, also can and the cavity internal surface between form bondingly, will form an insulation interstitital texture like this with certain intensity.
The present invention is because waste polystyrene foam is easy to acquisition, price is extremely cheap, even use some tackiness agent, its consumption also seldom, do not have too big cost, so the insulation filling materials of utilizing the present invention to obtain is compared with the packing material of equal heat insulation effect, have tangible economic benefit and the social benefit of improving environment, be the effective way that waste polystyrene foam utilizes again.
Description of drawings
Fig. 1 is a process flow sheet of the present invention.
Embodiment
Embodiment:
The present invention is filled as the thermal insulation layer of antitheft door:
The cavity volume of single antitheft door thermal insulation layer is generally 0.08m
3About (this contriver with 0.08m
3Calculate).Because the gauge of door leaf is less, is generally 40mm-60mm, so should select for use waste polystyrene foam to pulverize the less foam beads of back diameter, present embodiment is selected the foam beads of 6mm-8mm diameter for use; The primary filling amount of choosing is 0.09m
3(heap volume) foam beads, its input is had in the agitator of vertical stirring arm, under stirring state, slowly add 300 gram waterbased urethane tackiness agent (solid content 30%), after stirring, adhesion phenomenon is arranged slightly, also to be stirred the degree of being that looses easily between the foam beads; Be connected with a jet pipe below the agitator with jet flow suction effect; Open valve when beginning to fill, when pressurized air with 3-4kg/cm
2Pressure when the jet pipe, the foam beads behind the gluing will be inhaled into jet pipe and be filled in the thermal insulation layer cavity of antitheft door, up to fill full till.In order successfully to finish filling, fill the material hole what the side bottom of antitheft door had two φ 32, have the venting hole of 20 φ 5 at lateral position, with the plastics buckle closure filling of antitheft door expected that hole and venting hole buckle behind the end-of-fill, whole filling process is finished.
Claims (4)
1, a kind of waste polystyrene foam utilize method, it is characterized in that:
A, the block polystyrene foam of packing material is pulverized, made it become particulate state;
How many b, loading levels of pulverizing foamy are determined by the volume size that is filled cavity that a filler particles shape foamy is piled volume and should be a bit larger tham the cavity volume that will fill, and both ratio is between 1.05-1.2;
C, the foam beads after pulverizing is filled in the enclosed cavity with pressurized air or negative-pressure air-flow.
2, a kind of waste polystyrene foam according to claim 1 utilize method, it is characterized in that:
A step, b step are identical with a step, b step according to claim 1;
C, the foam beads after will pulverizing drop in the agitator, slowly add tackiness agent under stirring state, from appearance, an adhesion phenomenon is arranged between foam beads, be degree but can also be dispelled by air-flow, illustrate at this moment to add the glue amount just in time suitable, do not need to have added glue;
D, be filled in the enclosed cavity with the foam beads of step on pressurized air or the negative-pressure air-flow, compressed-air actuated pressure is 3-4kg/cm
2, along with the curing gradually of tackiness agent can stick together, can and the cavity internal surface between form bondingly, will form an insulation interstitital texture like this with certain intensity.
3, a kind of waste polystyrene foam according to claim 2 utilize method, it is characterized in that:
Described tackiness agent should be less emulsion adhesive of viscosity ratio or water soluble adhesive, can be acrylic acid emulsion adhesive, also can be aqurous ployurethane tackiness agent etc.
4, a kind of waste polystyrene foam according to claim 1 and 2 utilize method, it is characterized in that:
When using pressurized air to fill, must around the cavity that is filled, leave enough venting holes, with for the air-flow that enters cavity can in time be discharged, must around cavity, leave enough venting holes, could guarantee that so follow-up air-flow is filled into cavity to foam beads continuously, till filling up; If when using negative-pressure air-flow to fill, around the cavity that is filled, must leave enough suction holes, be connected with vacuum pump, to guarantee having enough negative-pressure air-flows that foam beads is brought into cavity, till filling up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410010676 CN1654520A (en) | 2004-02-13 | 2004-02-13 | Method for using waste polystyrene foam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410010676 CN1654520A (en) | 2004-02-13 | 2004-02-13 | Method for using waste polystyrene foam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1654520A true CN1654520A (en) | 2005-08-17 |
Family
ID=34892113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410010676 Pending CN1654520A (en) | 2004-02-13 | 2004-02-13 | Method for using waste polystyrene foam |
Country Status (1)
| Country | Link |
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| CN (1) | CN1654520A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102585137A (en) * | 2011-12-23 | 2012-07-18 | 山东东大一诺威聚氨酯有限公司 | Environmentally-friendly high-strength regenerated foam polyurethane adhesive, and preparation method and use method thereof |
| CN102748560A (en) * | 2012-07-09 | 2012-10-24 | 关志强 | Method for production of vacuum insulation plate via reutilization of rigid polyurethane foam |
| CN113306047A (en) * | 2021-05-24 | 2021-08-27 | 王精利 | Decomposition preparation method of recycled waste polystyrene foam permeation heat-insulation material |
-
2004
- 2004-02-13 CN CN 200410010676 patent/CN1654520A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102585137A (en) * | 2011-12-23 | 2012-07-18 | 山东东大一诺威聚氨酯有限公司 | Environmentally-friendly high-strength regenerated foam polyurethane adhesive, and preparation method and use method thereof |
| CN102748560A (en) * | 2012-07-09 | 2012-10-24 | 关志强 | Method for production of vacuum insulation plate via reutilization of rigid polyurethane foam |
| CN102748560B (en) * | 2012-07-09 | 2015-01-07 | 关志强 | Method for production of vacuum insulation plate via reutilization of rigid polyurethane foam |
| CN113306047A (en) * | 2021-05-24 | 2021-08-27 | 王精利 | Decomposition preparation method of recycled waste polystyrene foam permeation heat-insulation material |
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