CN1935494A - Method for preparing special packaging material and plate using waste EPS foam plastics - Google Patents
Method for preparing special packaging material and plate using waste EPS foam plastics Download PDFInfo
- Publication number
- CN1935494A CN1935494A CN 200610017256 CN200610017256A CN1935494A CN 1935494 A CN1935494 A CN 1935494A CN 200610017256 CN200610017256 CN 200610017256 CN 200610017256 A CN200610017256 A CN 200610017256A CN 1935494 A CN1935494 A CN 1935494A
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- eps foam
- foam plastics
- eps
- heat treatment
- waste
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Abstract
The present invention discloses a method for making shaped package and plate material by using waste EPS foam plastics. Said method includes the following steps: pulverizing waste EPS foam plastics into granules whose grain size is 1-7 mm, removing dust, drying, fluidization heat treatment, compression so as to obtain recovered EPS foam granules or mixing said waste EPS foam plastics with EPS pre-expanded granules according to the mixing ratio of 10:1, feeding them into mould, heating and forming, cooling and demoulding so as to obtain product.
Description
Technical field
The invention provides and a kind ofly make the method for special packaging, sheet material, belong to the reclaiming and utilizing waste plastics technical field with waste EPS foam plastics.
Background technology
The eps foam plastics are the heat-insulation and heat-preservation, sound insulation of freezer, highway, airfield runway etc., shockproof ideal material, and these products are to be made by the EPS plastic pellet.In the actual production manufacture process, because of special packaging 70% is a disposable product, when producing sheet material, the leftover pieces of 3-5% have been produced, so the annual whole nation produces 500,000 tons of waste EPS foam plastics approximately, be badly in need of a profitable technical method, eliminate the environmental pollution and the recycling that cause, be society and factory's create beneficial result.
Use waste EPS foam plastics, make huge light body special packaging and the insulation benzene plate in market, it is the research and development problem that the home and abroad is attached great importance to, technological difficulties are that waste EPS foam plastics has not had the foaming swelliong power, and pulverizing the back volume increases greatly, and it is big that the space becomes, density diminishes, be difficult for and give that issuance of materials mixes and molding bonded, therefore, the regeneration of waste EPS foam plastics has been subjected to very big restriction.
Summary of the invention
The invention provides and a kind ofly make the method for special packaging, sheet material with waste EPS foam plastics, overcome waste EPS foam plastics in the prior art can not foaming and intumescing and with give hair powder and mix problem with molding bonded.
Technical solution of the present invention is as follows: will be ground into the particle of 1～7mm with discarded eps foam plastics, and obtain reclaiming the eps foam particle after footpath dedusting, drying, fluidization heat treatment, the compression; Also can give after issuance of materials mixes in 1～10 to 1 ratio coupling with EPS, wind is delivered in the mould, hot briquetting, and cooling and mould unloading makes special packaging and insulation benzene plate.
Above-mentioned fluidization heat treatment can adopt steam or 70～100 ℃ of hot-airs to carry out fluidization heat treatment to pulverizing material, makes it to reach the product desired density.
In order to satisfy the fire resistance requirement of product, adopt inorganic combustion inhibitor (phosphide, chloride, hydroxide etc.), organic fire-retardant (carrene, tetrachloro-ethylene, HBCD etc.), bleeding agent (OP, tween etc.) spray reclaim the EPS particle and carry out flame treatment.
By above-mentioned technology method, can make the special packaging of density 14-30kg/m3, the insulation benzene plate of density 10-40kg/m3, product quality all can reach the quality standard of national regulation.
Good effect of the present invention is: can be with discarded eps foam plastics, again make product, waste EPS many key problem in technology difficult problems in reclaiming technology have been solved, as: the particle size range that needs, dedusting, give the issuance of materials matching condition with EPS, evenly mix, wind send and enters the separation of mould to producing, make reclaimed materials heat bonding moulding etc. with giving the issuance of materials expansive force, thereby make reclaimed materials blending utilization rate by existing less than 8% (weight ratio), bring up to 10%-100%, product quality (compression strength＞the 60Kpa that is up to state standards, thermal conductivity factor is gone into＜0.041w/m3k, oxygen index (OI)＞30), economic benefit improves greatly than existing production method.
The specific embodiment
By following examples the present invention is described for example further, and do not limit the present invention in any way, under the prerequisite that does not deviate from technical solution of the present invention, any change or change that those of ordinary skills that the present invention did are realized easily all will fall within the claim scope of the present invention.
Embodiment 1
With the special-shaped packing of waste EPS leftover pieces (the about 20kg/m3 of density) 10 kilograms that reclaims, pulverize through pulverizer, obtain the reclaimed materials particle of φ 2-6mm, through deduster dedusting, drying, steam treated in the fluidisation heat-treating machine, make the density of pulverizing reclaimed materials EPS particle reach 18kg/m3, obtain the reclaimed materials that about 9.7kg handles well, give issuance of materials (density 18kg/m3), 14.6kg with fluidizing drying bed with EPS again, fluidization mixes, and it is stand-by that wind is delivered to storage bin; With compressed air compound is delivered in the die forming machine, logical steam die mould, cooling and mould unloading, the blending utilization rate that obtains reclaimed materials is 30% special packaging, the about 20kg/m3 of product density, compression strength 140Kpa.
Embodiment 2
Get reclaimed materials particle 4 liters of φ 6mm density 5～8kg/m3, spray 15% magnesium chloride brine 300ml, put into mould after the drying, logical steam heat was handled 1 minute, after volume compression 80%, obtain density and be 35～40kg/m3, compression strength greater than 60Kpa, oxygen index (OI) greater than 30 product of the present invention.
Embodiment 3
With 20 kilograms of the discarded EPS sheet material leftover pieces (the about 18kg/m3 of density) that reclaim, pulverize, sieve with pulverizer, obtain the reclaimed materials particle of φ 1-6mm, after the dust removal machine dedusting, 15% ammonium chloride of per 500 gram material spray 30ml, 8% tetrachloro-ethylene are with 1 to 1 aqueous solution that mixes, heat treatment in the fluidisation heat-treating machine, drying, obtain 19 kilograms of the reclaimed materials that 16kg/m3 arrives, give issuance of materials (density 16kg/m3) (reclaimed materials 40% in proportion with EPS, give issuance of materials 60%) carry out the fluidization mixing, it is stand-by that wind is delivered to feed bin.Time spent is delivered to loading hopper with compound wind, sends into again in the big plate machine cavity, and steam molding, cooling and mould unloading cuts behind the dryness finalization, makes the plate product that needs size, and the about 18kg/m3 of density goes into 0.040w/m3k, oxygen index (OI)＞30.
Claims (3)
1, a kind ofly make the method for special packaging, sheet material, may further comprise the steps with waste EPS foam plastics:
To be ground into the particle of 1～7mm with discarded eps foam plastics, obtain reclaiming the eps foam particle after footpath dedusting, drying, fluidization heat treatment, the compression; Or give after issuance of materials mixes in 1～10 to 1 ratio coupling with EPS, wind is delivered in the mould, hot briquetting, and cooling and mould unloading makes product.
2, according to the described method of claim 1, it is characterized in that: fluidization heat treatment adopts steam or hot-air to carry out fluidization heat treatment to pulverizing material.
3, according to the described method of claim 1, it is characterized in that: adopt phosphide, chloride-based inorganic combustion inhibitor, or carrene, tetrachloro-ethylene, HBCD class organic fire-retardant carry out flame treatment to reclaiming EPS particle spray.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610017256A CN100575053C (en) | 2006-10-18 | 2006-10-18 | Make the method for special packaging, sheet material with waste EPS foam plastics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610017256A CN100575053C (en) | 2006-10-18 | 2006-10-18 | Make the method for special packaging, sheet material with waste EPS foam plastics |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1935494A true CN1935494A (en) | 2007-03-28 |
| CN100575053C CN100575053C (en) | 2009-12-30 |
Family
ID=37953312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610017256A Expired - Fee Related CN100575053C (en) | 2006-10-18 | 2006-10-18 | Make the method for special packaging, sheet material with waste EPS foam plastics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100575053C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102303359A (en) * | 2011-05-27 | 2012-01-04 | 中国一冶集团有限公司 | Heating furnace upright post cofferdam internal mold and making method thereof |
-
2006
- 2006-10-18 CN CN200610017256A patent/CN100575053C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102303359A (en) * | 2011-05-27 | 2012-01-04 | 中国一冶集团有限公司 | Heating furnace upright post cofferdam internal mold and making method thereof |
| CN102303359B (en) * | 2011-05-27 | 2013-12-11 | 中国一冶集团有限公司 | Heating furnace upright post cofferdam internal mold and making method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100575053C (en) | 2009-12-30 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JILIN QUNYUAN INDUSTRIAL AND TRADING CO., LTD. Free format text: FORMER OWNER: ZHANG FENGCHEN Effective date: 20120418 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 130051 CHANGCHUN, JILIN PROVINCE TO: 130000 CHANGCHUN, JILIN PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20120418 Address after: 130000 Jilin City Jingyue Changchun Jingyue Development Zone sub group 62 Patentee after: Jilin Qun yuan industry and Trade Co., Ltd. Address before: 130051 room 120, building 606, safe community, Changchun, Jilin Patentee before: Zhang Fengchen |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091230 Termination date: 20131018 |