CN101502989A - Recovering and recycling method for polyolefin foam material - Google Patents
Recovering and recycling method for polyolefin foam material Download PDFInfo
- Publication number
- CN101502989A CN101502989A CNA2009100677478A CN200910067747A CN101502989A CN 101502989 A CN101502989 A CN 101502989A CN A2009100677478 A CNA2009100677478 A CN A2009100677478A CN 200910067747 A CN200910067747 A CN 200910067747A CN 101502989 A CN101502989 A CN 101502989A
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- China
- Prior art keywords
- foam
- polyolefin foam
- recycling
- block
- foam materials
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Abstract
The invention relates to a method for recycling foam materials, in particular to a method for recycling polyolefine foam materials. In the invention, polyolefine foam materials are crashed into blocks with identical size, and the surface structure thereof is not damaged; the surfaces of the crashed blocks are welded by highly compressed steam, and products are formed in a mould with fixed shape. The products in the invention still have the specific performance of the polyolefine foam materials, and can be used in various fields such as cushion packaging, vehicle heat insulation layer, sound insulation for buildings and heat preservation.
Description
Technical field
The present invention relates to method for recycling foam, particularly the method for polyolefin foam recycling.
Background technology
Foamed plastics is because its good heat insulation, sound-absorbing, shock-absorbing capacity are used very extensive.But foamed plastics is because its volume is big, and discarded object or leftover pieces take up room very big when piling up, and foamed material belongs to combustible material, and there is potential safety hazard in long-term the accumulation.Cross-linked polyolefin foam is because cross-linking reaction has taken place in its strand, so be difficult to reclaim by the method for fusion regeneration.
In being 98111174.2 patent of invention, number of patent application discloses " waste foam plastics utilize method ", this patent mainly is with after the used foamed plastics fragmentation, stick with glue agent and be bonded into block, owing to will use adhesive in the process, so the feature of environmental protection is relatively poor, and the use of adhesive can be that the elasticity of the product that reclaims reduces greatly.
" a kind of method that reclaims polystyrene foam plastics " disclosed in number of patent application is the patent of invention of 200510032267.X, this patent mainly reclaims polystyrene foam with chemical method, the technology more complicated, can only be used for the recovery of polystyrene foam, and regenerant is the lysate of polystyrene.
" waste hard foam polyurethane plastics recycling method " disclosed in number of patent application is 200710023806.2 patent of invention, this patent is to foam at the pure raw material of adding after polyurethane foam is ground into powder again, can only be applicable to the recycling of polyurethane foam material.
Summary of the invention
Among the present invention a kind of method that reclaims polyolefin foam, the recovery that is particularly suitable for reclaiming cross-linked foam polyolefin material.
The method of polyolefin foam recycling of the present invention, be that foamed polyolefine plastic is broken into uniform block, and do not destroy its epidermal structure, by the block epidermis welding of high steam after, in the mould of fixed in shape, form goods then fragmentation.
Described polyolefin foam is a sheet or tabular, and thickness is 1mm～15mm.
Described its block is a cuboid.
Described high high steam is 0.05MPa～0.6MPa.
Foam polyolefin material among the present invention includes but not limited to polyethylene (PE), polypropylene (PP), ethylene-vinyl acetate copolymer (EVA).
Recovery method among the present invention is that the foam polyolefin material that sheet is tabular cuts into the bar of width equalization earlier, and then cuts into isometric block, will guarantee that in whole process breakage does not appear in the epidermis of foam polyolefin material.The thickness of sheet material is 1 ~ 15mm, and the sheet material of different-thickness, different densities, different colours does not need separately can mix naturally, can mix with mechanical agitation yet.
Above-mentioned block is injected in definite shape, the airtight mould, feeds high temperature and high pressure steam to mould, the epidermis fusion of foam polyolefin material, and be welded together each other and form goods.Goods still have the distinctive performance of polyolefin foam, can be used for every field such as buffering package, automobile heat insulation layer, building sound insulation, insulation.
The specific embodiment
Below in conjunction with embodiment the present invention is further detailed:
Embodiment 1:
2mm is thick, and density is 30KG/M
3The crosslinked polyethylene foam sheet, cut into the bar that width is 2mm, then these bars are divided into again the long block of 2mm, promptly final block is of a size of 2mm * 2mm * 2mm.These blocks are blown in the plate forming mould of common EPS make-up machine with compressed air, fill with the high-temperature steam 5 seconds that feeds 0.1MPa after the compacting, obtain the plate forming product behind the cooling and shaping.Sheet material after the moulding is cutd open into the uniform sheet material of thickness with splitting machine, and these sheet materials can be applied to the bumper and absorbing shock layer in the floating build floor.
Embodiment 2:
3mm is thick, and density is 90KG/M
3The crosslinked polypropylene foam sheet, be cut into the bar that width is 2mm, then these bars are divided into again the long block of 2mm, promptly final block is of a size of 3mm * 2mm * 2mm.These blocks are blown in the board mould of EPP make-up machine with compressed air, fill with the high-temperature steam 7 seconds that feeds 0.6MPa after the compacting, obtain sheet forming behind the cooling and shaping.Then the sheet material after the moulding is cutd open into the uniform sheet material of thickness with splitting machine, these sheet materials can be used for the thermal insulation layer part of automotive upholstery, approaching with the sheet material before the pelletizing in performance aspect the insulation.The internal layer that also can be used for the high-temperature-resistant thermal-insulation pipe.
Embodiment 3:
5mm is thick, and density is 45KG/M
3The crosslinked polyethylene foam sheet, cut into the bar that width is 3mm, be divided into the long block of 3mm then, promptly final block is of a size of 5mm * 3mm * 3mm, mixes with block among the embodiment one again.These blocks are blown in the make-up machine with compressed air, fill with the high-temperature steam 5 seconds that feeds 0.12MPa after the compacting, obtain the product of different expansion ratios behind the cooling and shaping.
Embodiment 4:
Crosslinked polypropylene block in the specific embodiment two with after two kinds of random ratios of block in the specific embodiment three are mixed, in the injection molding machine, is filled with the high-temperature steam 3 seconds that feeds 0.3MPa after the compacting, obtain the moulding product behind the cooling forming.Specific embodiment five:
Just 1mm is thick, and density is 30KG/M
3The eva foam sheet material, cut into the bar that width is 1mm, then these bars are divided into again the long block of 1mm, promptly final block is of a size of 1mm * 1mm * 1mm.These blocks are blown in the mould of common EPS make-up machine with compressed air, fill with the high-temperature steam 3 seconds that feeds 0.05MPa after the compacting, obtain the moulding product behind the cooling and shaping.These moulding product can be directly used in the packing of article, except having the shock-absorbing capacity of original EVA expanded material, can also make that the applying of packing material and packing material is better according to the face shaping designing mould of products to be packaged, obtain better buffering and damping effect.
Claims (4)
1. the method for a polyolefin foam recycling, it is characterized in that foamed polyolefine plastic is broken into uniform block, and do not destroy its epidermal structure, by the block epidermis welding of high steam after, in the mould of fixed in shape, form goods then fragmentation.
2. the method for polyolefin foam recycling as claimed in claim 1 is characterized in that described polyolefin foam is a sheet or tabular, and thickness is 1mm～15mm.
3. the method for polyolefin foam recycling as claimed in claim 1 is characterized in that described its block is a cuboid.
4. the method for polyolefin foam recycling as claimed in claim 1 is characterized in that described high high steam is 0.05MPa～0.6MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100677478A CN101502989A (en) | 2009-01-20 | 2009-01-20 | Recovering and recycling method for polyolefin foam material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100677478A CN101502989A (en) | 2009-01-20 | 2009-01-20 | Recovering and recycling method for polyolefin foam material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101502989A true CN101502989A (en) | 2009-08-12 |
Family
ID=40975419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100677478A Pending CN101502989A (en) | 2009-01-20 | 2009-01-20 | Recovering and recycling method for polyolefin foam material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101502989A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106608006A (en) * | 2016-12-21 | 2017-05-03 | 泰山体育产业集团有限公司 | Polyolefin foaming material recycling method and device |
| CN108608603A (en) * | 2018-04-14 | 2018-10-02 | 郑君 | A kind of technique for the molded part being mixed with industrial waste |
-
2009
- 2009-01-20 CN CNA2009100677478A patent/CN101502989A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106608006A (en) * | 2016-12-21 | 2017-05-03 | 泰山体育产业集团有限公司 | Polyolefin foaming material recycling method and device |
| CN106608006B (en) * | 2016-12-21 | 2019-02-15 | 泰山体育产业集团有限公司 | A kind of foam polyolefin material recoverying and utilizing method and equipment |
| CN108608603A (en) * | 2018-04-14 | 2018-10-02 | 郑君 | A kind of technique for the molded part being mixed with industrial waste |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20090812 |