CN101914280B - Method for producing thin films by recycled plastics - Google Patents
Method for producing thin films by recycled plastics Download PDFInfo
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- CN101914280B CN101914280B CN2010102405945A CN201010240594A CN101914280B CN 101914280 B CN101914280 B CN 101914280B CN 2010102405945 A CN2010102405945 A CN 2010102405945A CN 201010240594 A CN201010240594 A CN 201010240594A CN 101914280 B CN101914280 B CN 101914280B
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- section
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- plastics
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/875—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling for achieving a non-uniform temperature distribution, e.g. using barrels having both cooling and heating zones
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
Abstract
The invention relates to a method for producing thin films by recycled plastics, which adopts recycled plastics bait after film formation by blow molding to produce thin films. After twice treatment, the physical property and the heat resistant temperature of the original plastic particles of the recycled bait are slightly lowered, the temperature set in the production process is 3-10 DEG C lowerthan that of normal products, and the products can be qualified after physical property test and water pressure test. The reduction of the production temperature can greatly lower the production costand improve the energy utilization rate.
Description
Technical field
The present invention relates to a kind of film-forming method, relate in particular to a kind of method that reclaims the plastics-production film of utilizing.
Background technology
Patent of invention 00109827.6 discloses a kind of recovery method of plastic waste, the plastics bag of collecting is put into have porous cylinder perhaps, adds washing composition and cleans; Plastics bag after washing is put into cutting machine, is cut into tiny plastic sheet, simultaneously with water purification drench into, carry out secondary washing; Then through the travelling belt drop that the has aperture branch that anhydrates, and get in three grades of process furnace, controlled temperature is 100,190,220 ℃ respectively; The moisture evaporation of frosting in the first step, plastics deliquescing in the second stage, plastic molting in the third stage.The hole that plastics after the fusing are opened from furnace outer wall is extruded, and in cold water, is cooled, and forms uniform plastic cord; In tablets press, plastic cord is divided into a section plastic pellet then, obtains the reworked material finished particle; Draining after twice washing gets into the drum wash plastic waste with the water that is mixed with washing composition, with the water reuse again through deposition with after handling; Reprocessed plastic(s) finished particle that obtains and Vilaterm can produce plastic reclaimed article according to proportioning melting again in 7: 3.The plastic waste that this method reclaims is difficult to directly be used for the film prodn process.
Summary of the invention
The purpose of this invention is to provide a kind of method that reclaims the plastics-production film of utilizing, after the waste material in the production process of plastic products is reclaimed, directly be used for the production of film, reduce environmental pollution.
A kind of method that reclaims the plastics-production film of utilizing comprises the steps:
The plastics bait of 1) blowing finished film is compressed into fragment through the 45m/min high speed disintegrator.
2) plastic flakes is added tablets press, mixing by single screw rod granulation processing, 50 ℃ of the first section feeding section processing temperatures; Again through 150 ℃ of second section mixing sections, 156 ℃ of three-stage mixing sections, 158 ℃ of the 4th section mixing sections; 158 ℃ of the 5th section mixing sections, 160 ℃ of the 6th section mixing sections, 175 ℃ of the 7th section metering zones; 178 ℃ of the 8th section mixing sections, 183 ℃ of the 9th section mixing sections are after by 7 poroid mould dischargings into strips, the time of each processing sections is 30 minutes.
3) after the discharging, the cutting knife platform of drum-type is cut into granular.
4) in thermoplastic elastomer raw material (TPU), add 5-10% (w/w) step 3) plastic pellet, outer lubrication prescription and 8% (w/w) the cloudy surface agent of 10% (w/w) surface is after mixer stirs, and dehumidifying heat pump is dried; In the screw rod cylindrical shell, carry out 5 segmentations then and add hot milling processing, to the mixing one-tenth fluid liquid of raw material hot melt,
The first section feeding section temperature is set 150 ℃, time 12-20 minute;
Second section mixing section temperature set 165 ℃, time 12-20 minute;
Three-stage mixing section temperature is set 178 ℃, time 3-15 minute;
The 4th section high mixing section temperature set 183 ℃, time 3-15 minute;
The 5th section compute segment temperature set 185 ℃, time 1-10 minute;
The fluid liquid that makes blows north one-tenth tubular film by the inflation film manufacturing machine mould, after cooling, is pressed into bilayer film by the shaping guide wheel.
The outer lubrication prescription in surface is selected from silicon-dioxide, the two amine hydroxybenzenes of ethylene or lime carbonate.
The cloudy surface agent is vinylbenzene and divinyl serum multipolymer.
The beneficial effect that technical scheme of the present invention realizes:
The present invention provides a kind of method that reclaims the plastics-production film of utilizing, and utilization is blown north film forming plastics bait and after reclaiming, is used further to film prodn.Because of reclaim the ear material through twice processing after, its rerum natura has a little with the former heat resisting temperature of moulding grain and descends, the production process design temperature can be than the low 3-10 degree of the temperature of producing general normal product, and finished product can both be through testing through rerum natura and hydraulic pressure test.The reduction of production temperature has significantly reduced production cost and has improved energy utilization.
Embodiment
Below describe technical scheme of the present invention in detail.
Embodiment 1
By the ear material of blowing finished film strip that downcut both sides be rolled into via ear material reeling machine cylindric after, with many reel ear material, hanging on the brandreth by four is that one group of tie rod is compressed into plastic flakes via high speed disintegrator 45m/min speed.
Then, plastic flakes is added tablets press, divide 9 sections by single screw rod granulation; Processed in 30 minutes for every section: 50 ℃ of the first section feeding section processing temperatures, again through 150 ℃ of second section mixing sections, 156 ℃ of three-stage mixing sections; 158 ℃ of the 4th section mixing sections, 158 ℃ of the 5th section mixing sections, 160 ℃ of the 6th section mixing sections; 175 ℃ of the 7th section metering zones, 178 ℃ of the 8th section mixing sections, 183 ℃ of the 9th section mixing sections are after by 7 poroid mould dischargings into strips.
After the discharging,, get rid of behind the moisture content again and to be cut into granular to the cutting knife platform of drum-type through two 3 meters long cooling troughes and water absorber cooling forming.
In the thermoplastic elastomer raw material, add the granular plastics of 6.2% (w/w), 10% (w/w) silicon-dioxide and 8% (w/w) vinylbenzene and divinyl serum multipolymer are after mixer stirs, and dehumidifying heat pump is dried; In the screw rod cylindrical shell, carry out 5 segmentations then and add hot milling processing, to the mixing one-tenth fluid liquid of raw material hot melt,
The first section feeding section temperature is set 150 ℃, 12 minutes time;
Second section mixing section temperature set 165 ℃, 12 minutes time;
Three-stage mixing section temperature is set 178 ℃, 3 minutes time;
The 4th section high mixing section temperature set 183 ℃, 3 minutes time;
The 5th section compute segment temperature set 185 ℃, 1 minute time.
The fluid liquid that makes blows north one-tenth tubular film by the inflation film manufacturing machine mould, after cooling, is pressed into bilayer film by the shaping guide wheel.
Embodiment 2
By the ear material of blowing finished film strip that downcut both sides be rolled into via ear material reeling machine cylindric after, with many reel ear material, hanging on the brandreth by four is that one group of tie rod is compressed into plastic flakes via high speed disintegrator 45m/min speed.
Then, plastic flakes is added tablets press, divide 9 sections by single screw rod granulation; Processed in 30 minutes for every section: 50 ℃ of the first section feeding section processing temperatures, again through 150 ℃ of second section mixing sections, 156 ℃ of three-stage mixing sections; 158 ℃ of the 4th section mixing sections, 158 ℃ of the 5th section mixing sections, 160 ℃ of the 6th section mixing sections; 175 ℃ of the 7th section metering zones, 178 ℃ of the 8th section mixing sections, 183 ℃ of the 9th section mixing sections are after by 7 poroid mould dischargings into strips.
After the discharging,, get rid of behind the moisture content again and to be cut into granular to the cutting knife platform of drum-type through two 3 meters long cooling troughes and water absorber cooling forming.
In the thermoplastic elastomer raw material, add the granular plastics of 7% (w/w), 10% (w/w) silicon-dioxide and 8% (w/w) vinylbenzene and divinyl serum multipolymer are after mixer stirs, and dehumidifying heat pump is dried; In the screw rod cylindrical shell, carry out 5 segmentations then and add hot milling processing, to the mixing one-tenth fluid liquid of raw material hot melt,
The first section feeding section temperature is set 150 ℃, 13 minutes time;
Second section mixing section temperature set 165 ℃, 13 minutes time;
Three-stage mixing section temperature is set 178 ℃, 4 minutes time;
The 4th section high mixing section temperature set 183 ℃, 4 minutes time;
The 5th section compute segment temperature set 185 ℃, 2 minutes time.
The fluid liquid that makes blows north one-tenth tubular film by the inflation film manufacturing machine mould, after cooling, is pressed into bilayer film by the shaping guide wheel.
Claims (3)
1. one kind is utilized the method that reclaims the plastics-production film, comprises the steps:
The plastics bait of 1) blowing finished film is compressed into fragment through the 45m/min high speed disintegrator;
2) plastic flakes is added tablets press, mixing by single screw rod granulation processing, 50 ℃ of the first section feeding section processing temperatures; Again through 150 ℃ of second section mixing sections, 156 ℃ of three-stage mixing sections, 158 ℃ of the 4th section mixing sections; 158 ℃ of the 5th section mixing sections, 160 ℃ of the 6th section mixing sections, 175 ℃ of the 7th section metering zones; 178 ℃ of the 8th section mixing sections, 183 ℃ of the 9th section mixing sections are after by 7 poroid mould dischargings into strips, the time of each processing sections is 30 minutes;
3) after the discharging, be cut into granular at the cutting knife platform of drum-type;
4) in the thermoplastic elastomer raw material, add 5-10w/w% step 3) plastic pellet, lubrication prescription and the agent of 8w/w% cloudy surface are after mixer stirs outside the 10w/w% surface, and dehumidifying heat pump is dried; In the screw rod cylindrical shell, carry out 5 segmentations then and add hot milling processing, to the mixing one-tenth fluid liquid of raw material hot melt,
The first section feeding section temperature is set 150 ℃, time 12-20 minute;
Second section mixing section temperature set 165 ℃, time 12-20 minute;
Three-stage mixing section temperature is set 178 ℃, time 3-15 minute;
The 4th section high mixing section temperature set 183 ℃, time 3-15 minute;
The 5th section compute segment temperature set 185 ℃, time 1-10 minute;
The fluid liquid that makes blows north one-tenth tubular film by the inflation film manufacturing machine mould, after cooling, is pressed into bilayer film by the shaping guide wheel.
2. the method for plastics-production film is reclaimed in utilization according to claim 1, it is characterized in that lubrication prescription is selected from silicon-dioxide, the two amine hydroxybenzenes of ethylene or lime carbonate outside the described surface.
3. the method for plastics-production film is reclaimed in utilization according to claim 1, it is characterized in that said cloudy surface agent is vinylbenzene and divinyl serum multipolymer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102405945A CN101914280B (en) | 2010-07-30 | 2010-07-30 | Method for producing thin films by recycled plastics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102405945A CN101914280B (en) | 2010-07-30 | 2010-07-30 | Method for producing thin films by recycled plastics |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101914280A CN101914280A (en) | 2010-12-15 |
| CN101914280B true CN101914280B (en) | 2012-05-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010102405945A Active CN101914280B (en) | 2010-07-30 | 2010-07-30 | Method for producing thin films by recycled plastics |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102642312B (en) * | 2012-05-21 | 2014-05-21 | 福建百宏高新材料实业有限公司 | Processing method for recovering and processing PET (polyethylene glycol terephthalate) waste film in compounding way by using twin-screw extrusion melting |
| CN102658655B (en) * | 2012-05-21 | 2014-04-02 | 福建百宏高新材料实业有限公司 | Production process of single-screw extrusion recycling of waste PET (polyester) films |
| CN106223528A (en) * | 2016-08-31 | 2016-12-14 | 湖南宝信云建筑综合服务平台股份有限公司 | A kind of novel building mechanism being easily installed use |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5145617A (en) * | 1990-10-15 | 1992-09-08 | Duro-Last, Inc. | Method of processing scrap roof-membrane sheet material comprising a flexible synthetic fabric substrate enveloped in a thermoplastic plastic envelope |
| CN1075116A (en) * | 1993-01-09 | 1993-08-11 | 江苏省轻工塑料工业公司塑料研究所 | The regeneration technology of card-protecting film leftover pieces |
| CN101033297A (en) * | 2007-04-17 | 2007-09-12 | 刘军 | Production method for waste recombination plastics regeneration and granulation |
-
2010
- 2010-07-30 CN CN2010102405945A patent/CN101914280B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5145617A (en) * | 1990-10-15 | 1992-09-08 | Duro-Last, Inc. | Method of processing scrap roof-membrane sheet material comprising a flexible synthetic fabric substrate enveloped in a thermoplastic plastic envelope |
| CN1075116A (en) * | 1993-01-09 | 1993-08-11 | 江苏省轻工塑料工业公司塑料研究所 | The regeneration technology of card-protecting film leftover pieces |
| CN101033297A (en) * | 2007-04-17 | 2007-09-12 | 刘军 | Production method for waste recombination plastics regeneration and granulation |
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| CN101914280A (en) | 2010-12-15 |
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