CN110093018A - It is a kind of to utilize the polyester alloy and preparation method thereof for recycling blended textile fabric preparation - Google Patents
It is a kind of to utilize the polyester alloy and preparation method thereof for recycling blended textile fabric preparation Download PDFInfo
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- CN110093018A CN110093018A CN201910417764.3A CN201910417764A CN110093018A CN 110093018 A CN110093018 A CN 110093018A CN 201910417764 A CN201910417764 A CN 201910417764A CN 110093018 A CN110093018 A CN 110093018A
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- textile fabric
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- polyester alloy
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/20—Recycled plastic
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Artificial Filaments (AREA)
Abstract
The present invention discloses a kind of polyester alloy and preparation method thereof using the blended textile fabric preparation of recycling.By recycling blended textile fabric, compatilizer, toughener, response type monomer, nano-mineral filler, antioxidant, lubricant composition.Preparation method: (1) blended discarded textile fabric is pre-processed, forms foam material；(2) foam material is put into smelting furnace and carries out being smelted into molten condition, rear filtering removal inorganic impurity obtains granulation semi-finished stock；(3) being granulated semi-finished stock and compatilizer, toughener, response type monomer, antioxidant, lubricant, nano-mineral filler, mechanical height mixes in latter same addition response type exhaust screw extruder according to the ratio, the nearly fusing point solid-state extrusion of increase-volume-thickening-is granulated, and obtains high-performance polyester alloy.It is intended to can be applied to this shaped charge PP Pipe Compound the engineering plastic products such as production piece, plate, band, pipe.It recycles for high-qualityization of resource and provides a new approach, have high economic benefit and social benefit.
Description
Technical field
The present invention relates to field of high polymer material modification, are prepared more particularly, to a kind of using blended discarded textile fabric
Polyester alloy and preparation method thereof.
Background technique
Blended textile fabric is mostly high molecule alloy material or composite material mixed textile.And it weaves, clothes and shoemaking
Industry then produces a large amount of composite high-molecular waste materials.These specialty industries solid waste recycle values are low at present, recycle skill
Art level is low, resource utilization rate is low, while bringing immense pressure to environment, wastes a large amount of petroleum resources.There is system
Meter data shows that American abandons about 10,000 tons of clothes every year, and China generates about 20,000,000 in production and consumption link every year
The waste and old clothing of ton or so, recycling rate is less than 14%.But handling discarded textile fabric clothes is strictly the thing that a difficulty is done
Feelings, donations the civil affairs department should not, throw away again love, be placed on family land occupation side, everybody does not know friperie is sent to where.These
Discarded textile fabric comes into landfill yard, partially synthetic chemical component needs 10 years or more resolving times, if all from dustbin
Throwing away or be treated as landfill will result in the great wasting of resources and environmental pollution.In addition to this, burning duds object also needs
The energy such as a large amount of coal, electric power are consumed, and burning process can inherently generate a large amount of pollutants, including carbon dioxide, combustion
Ashes etc. after burning.It is such as landfilled, not only land occupation, generated harmful substance also pollutes water and soil.
Chinese patent CN105670041A discloses a kind of fibres for fabrics manufacture light building board of utilization recycling
Method, the method for preparing light building board are to discard cotton fiber that the processes such as textile fabric crushing, shredding obtain and various
The mixture of synthetic fibers is raw material, then waste woven felt raw material is made by on-woven technical process；Waste woven felt raw material is cut into
The blank of certain specification, then blank modifying agent is passed through into vacuum infiltration, high temperature technique for fixing process, it is made into high-strength light
Structural lumber.Though not only having solved the problems, such as the processing of waste textile in this way, but also construction cost and energy consumption can be reduced, the hair
Bright its building board that do not illustrate is the theory that the modified preparation of waste recycling high-qualityization, polymer functionalization is utilized by mixing.
It is multiple that Chinese patent CN108331613A discloses a kind of bastard coal ground mass using the discarded prefabricated coal mine filling of textile fabric
Condensation material blanket belongs to the technical field of filler for mine material, can solve existing filling mining method low efficiency, easily blocks, to ring
There is the problem of secondary pollution in border.The invention also and embodies waste recycling high-qualityization using the theory of discarded textile fabric.
Based on above-mentioned, the present invention mainly prepares polyester alloy using blended discarded textile fabric, it is intended to by this polyesters
Engineering plastics PP Pipe Compound can be applied to the engineering plastic products such as production piece, plate, band, pipe.It recycles and mentions for high-qualityization of resource
A new approach has been supplied, there is very high economic benefit and social benefit.
Summary of the invention
In view of the deficiencies of the prior art, the purpose of the present invention is by low temperature solid-state extrusion/reaction it is compatible/adhesiveness increasing and modifying,
Mix and prepare polyester alloy using the treatment of wastes with processes of wastes against one another, a kind of polyester alloy and its preparation for utilizing and recycling prepared by blended textile fabric is provided
Method, to obtain PP Pipe Compound, it is intended to can be applied to the engineering plastic products such as production piece, plate, band, pipe, so that blended discarded spinning
Fabric realizes high-value-use, achieving environmental protection and energy saving.
In order to achieve the object of the present invention, specific technical solution is as follows:
It is a kind of to utilize the polyester alloy for recycling blended textile fabric preparation, which is characterized in that be made of the raw material that following weight matches:
Recycle 70 ~ 95 parts of blended textile fabric, 1-5 parts of compatilizer, 5-15 parts of toughener, 0.5-5 parts of response type monomer, nano-mineral
0.5-4 parts of filler, 0.1-0.5 parts of antioxidant, 0.1-0.5 parts of lubricant.
The blended textile fabric of recycling, according to natural fiber/synthetic fibers, synthetic fibers/synthetic fibers composition and knot
Structure feature is using the blended textile of terylene, polypropylene fibre, polyamide fibre, cotton spinning, clothes or shoemaking fabric leftover pieces, main ingredient
PET/PP alloy, PET/PE alloy or other PET base polyester composites.
The compatilizer, for PE-g-GMA, POE-g-GMA, PP-g-GMA, PA66 and PET graft or block copolymerization
Object, block copolymer are selected from ethylene-methyl acrylate-glyceryl methacrylate random terpolymer, ethylene-propylene
Acid butyl ester-glycidyl methacrylate copolymer, acrylate copolymer, methyl methacrylate-butadiene-styrene
One of or it is a variety of.
The toughener, for grafting EPDM or the thermoplastic elastomer (TPE) of grafting.
The response type monomer is selected from difunctional, trifunctional or multi-functional polyaldehyde, polyalcohol, polynary carboxylic
One of acid or polyester are a variety of.
The nano-mineral filler is selected from one of calcium carbonate, talcum powder, barium sulfate, wollastonite, kaolin or hydridization
What is compounded is a variety of, and particle size range is 500nm ~ 1 μm.
The antioxidant is selected from one of Hinered phenols or phosphite ester compound or compounding is a variety of.
The lubricant is selected from ethylene double hard amide, pentaerythritol stearate, polyethylene wax, oxidized polyethylene wax, silicon
The mixture of one of ketone powder, silicone master batch or a variety of compositions.
A kind of above-mentioned preparation method using the polyester alloy for recycling blended textile fabric preparation of the present invention, including walk as follows
It is rapid:
(1) the blended textile fabric of recycling for collecting the various colors come is crushed respectively, washed, is dried in vacuo, form foam
Material；
(2) foam material is put into smelting furnace and carries out melting, reached molten condition, then filter, remove inorganic impurity, half must be granulated
Finished product raw material；
(3) semi-finished stock and compatilizer, toughener, response type monomer, antioxidant, lubricant, nano-mineral filler will be granulated
Screw extruder is added together by being formulated after simple and mechanical height mixes, the nearly fusing point solid-state extrusion of increase-volume-thickening-is granulated, and obtains high-performance
Polyester alloy.
The screw extruder is one of single screw extrusion machine, parallel dual-screw extruding machine, three-screw extruder.
After adopting the above technical scheme, the present invention have the advantages that following features and: 1, recycled for high-qualityization of resource
A new approach is provided, there is very high economic benefit and social benefit；2, discarded textile fabric recycling benefit has been subjected to
With processing, be conducive to environmental protection, realize the high-value-use mixed using waste recycling；3, waste textile is both solved
Processing problem, and construction cost and energy consumption can be reduced.4, it is low low with resource utilization rate to solve solid waste recycle value, delays
The waste of a large amount of petroleum resources is solved.
Specific embodiment
The blended textile fabric of recycling used by the following embodiments of the present invention, according to natural fiber/synthetic fibers, synthesis
Fiber/synthetic fibers composition and design feature can be terylene, polypropylene fibre, polyamide fibre, cotton spinning blended textile, clothes and system
Gum shoes surfacing material leftover pieces composition.Its main ingredient may be PET/PP alloy, and PET/PE alloy, wherein main component terylene accounts for 70%
More than.Below in conjunction with specific embodiment, the present invention will be further described.It should be understood that following embodiment is merely to illustrate this hair
Bright range and is not intended to limit the present invention.
Embodiment 1
It is a kind of using recycle the polyester alloy of blended textile fabric preparation by: recycle blended textile fabric (blended textile fabric based on terylene,
Such as: cotton blend shirt, wherein terylene accounts for 70% in main component, and polyamide fibre accounts for 20%, cotton and accounts for 10%, conventional products) 80 parts, POE-
4 parts of g-GMA, 12 parts of EPDM of maleic anhydride grafting, 2 parts of ethylene glycol, 1 part of nanometer calcium carbonate, antioxidant 1010/irgasfos 168
0.5 part, 0.5 part of silicone powder composition.
Preparation method is carried out by following step:
(1) the blended textile fabric of recycling for collecting 80 parts next various colors is pre-processed respectively ((to be crushed, washes, vacuum is done
It is dry), form foam material；
(2) foam material being put into smelting furnace and carries out melting, smelting temperature controls within the scope of 240 ~ 260 DEG C, reach molten condition,
Then it filters, removes inorganic impurity, obtain granulation semi-finished stock；
(3) 4 parts of semi-finished stock and POE-g-GMA will be granulated, maleic anhydride is grafted 12 parts of EPDM, 2 parts of ethylene glycol, nano-sized carbon
1 part of sour calcium, is added twin-screw after 0.5 part of silicone powder simple and mechanical height is mixed together and squeezes by 0.5 part of antioxidant 1010/irgasfos 168
Machine out, the nearly fusing point solid-state extrusion of increase-volume-thickening-are granulated, and obtain high-performance polyester alloy.
The specific preparation process that the nearly fusing point solid-state extrusion of above-mentioned steps (3) increase-volume-thickening-is granulated are as follows: served as a contrast using cotton blend
Shirt, wherein main component terylene accounts for 70%, and polyamide fibre accounts for 20%, cotton and accounts for 10%, is conventional products, will be discarded using intermediate introducing method
Polyester Textiles are introduced into double screw extruder from vent position, and compatilizer is glycidyl methacrylate graft second
Alkene-octene copolymer (POE-g-GMA), toughener are that maleic anhydride is grafted EPDM, transesterification solvent ethylene glycol, nano-calcium carbonate
Calcium, antioxidant 1010/irgasfos 168, silicone powder pass through the nearly fusing point solid phase of reaction equation double screw extruder In Situ Compatibilization-thickening-
It squeezes out, temperature setting of the extrusion temperature from feed opening to head is followed successively by 190,200,210,220,230,240,235 DEG C, screw rod
Revolving speed is 100 r/min, prepares high-performance polyester alloy.
Embodiment 2
It is a kind of using recycle the polyester alloy of blended textile fabric preparation by: recycle blended textile fabric (blended textile fabric based on terylene,
Cotton blend shirt, wherein terylene accounts for 70% in main component, and polyamide fibre accounts for 15%, cotton and accounts for 15%, conventional products) 85 parts, PE-g-GMA
4 parts, 7 parts of EPDM of maleic anhydride grafting, 2 parts of ethylene glycol, 1 part of nanometer calcium carbonate, 0.5 part of antioxidant 1010/irgasfos 168,
0.5 part of silicone powder composition.
Preparation method is carried out by following step:
(1) the blended textile fabric of recycling for collecting the various colors come is crushed respectively, washed, is dried in vacuo, form foam
Material；
(2) foam material being put into smelting furnace and carries out melting, smelting temperature controls within the scope of 240 ~ 260 DEG C, reach molten condition,
Then it filters, removes inorganic impurity, obtain granulation semi-finished stock；
(3) semi-finished stock and compatilizer, toughener, response type monomer, antioxidant, lubricant, nano-mineral filler will be granulated
Double screw extruder is added together by being formulated after simple and mechanical height mixes, the nearly fusing point solid-state extrusion of increase-volume-thickening-is granulated, and obtains high property
It can polyester alloy.
The specific preparation process that the nearly fusing point solid-state extrusion of above-mentioned steps (3) increase-volume-thickening-is granulated are as follows: served as a contrast using cotton blend
Shirt, wherein main component terylene accounts for 70%, and polyamide fibre accounts for 15%, cotton and accounts for 15%, is conventional products, is mixed cotton using intermediate introducing method
It spins shirt to be introduced into double screw extruder from vent position, compatilizer is that glycidyl methacrylate graft ethylene-is pungent
Alkene copolymer (PE-g-GMA), toughener are that maleic anhydride is grafted EPDM, transesterification solvent ethylene glycol, nanometer calcium carbonate, antioxygen
1010/irgasfos 168 of agent, silicone powder are squeezed by the nearly fusing point solid-state extrusion of reaction equation double screw extruder In Situ Compatibilization-thickening-
Temperature setting of the temperature from feed opening to head is followed successively by 190,200,210,220,230,240,235 DEG C out, and screw speed is
120 r/min prepare high-performance polyester alloy.
Embodiment 3
It is a kind of using recycle the polyester alloy of blended textile fabric preparation by: recycle blended textile fabric (blended textile fabric based on terylene,
Cotton blend shirt, wherein terylene accounts for 70% in main component, and polyamide fibre accounts for 10%, cotton and accounts for 20%, conventional products) 90 parts, PE-g-GMA
2 parts, 4 parts of EPDM of maleic anhydride grafting, 2 parts of ethylene glycol, 1 part of nanometer calcium carbonate, 0.5 part of antioxidant 1010/irgasfos 168,
0.5 part of silicone powder composition.
Preparation method is carried out by following step:
(1) the blended textile fabric of recycling for collecting the various colors come is crushed respectively, washed, is dried in vacuo, form foam
Material；
(2) foam material being put into smelting furnace and carries out melting, smelting temperature controls within the scope of 240 ~ 260 DEG C, reach molten condition,
Then it filters, removes inorganic impurity, obtain granulation semi-finished stock；
(3) semi-finished stock and compatilizer, toughener, response type monomer, antioxidant, lubricant, nano-mineral filler will be granulated
Double screw extruder is added together by being formulated after simple and mechanical height mixes, the nearly fusing point solid-state extrusion of increase-volume-thickening-is granulated, and obtains high property
It can polyester alloy.
The specific preparation process that the nearly fusing point solid-state extrusion of above-mentioned steps (3) increase-volume-thickening-is granulated are as follows: served as a contrast using cotton blend
Shirt, wherein main component terylene accounts for 70%, and polyamide fibre accounts for 10%, cotton and accounts for 20%, is conventional products, is mixed cotton using intermediate introducing method
It spins shirt to be introduced into double screw extruder from vent position, compatilizer is that glycidyl methacrylate graft ethylene-is pungent
Alkene copolymer (PE-g-GMA), toughener are that maleic anhydride is grafted EPDM, transesterification solvent ethylene glycol, nanometer calcium carbonate, antioxygen
1010/irgasfos 168 of agent, silicone powder are squeezed by the nearly fusing point solid-state extrusion of reaction equation double screw extruder In Situ Compatibilization-thickening-
Temperature setting of the temperature from feed opening to head is followed successively by 190,210,210,230,235,240,235 DEG C out, and screw speed is
120 r/min prepare high-performance polyester alloy.
Embodiment 4
It is a kind of using recycle the polyester alloy of blended textile fabric preparation by: recycle blended textile fabric (blended textile fabric based on terylene,
Cotton blend shirt, wherein terylene accounts for 80% in main component, and polyamide fibre accounts for 10%, cotton and accounts for 10%, conventional products) 95 parts, PE-g-GMA
1 part, 1 part of EPDM of maleic anhydride grafting, 1 part of ethylene glycol, 1 part of nanometer calcium carbonate, 0.5 part of antioxidant 1010/irgasfos 168,
0.5 part of silicone powder composition.
Preparation method is carried out by following step:
(1) the blended textile fabric of recycling for collecting the various colors come is crushed respectively, washed, is dried in vacuo, form foam
Material；
(2) foam material being put into smelting furnace and carries out melting, smelting temperature controls within the scope of 240 ~ 260 DEG C, reach molten condition,
Then it filters, removes inorganic impurity, obtain granulation semi-finished stock；
(3) semi-finished stock and compatilizer, toughener, response type monomer, antioxidant, lubricant, nano-mineral filler will be granulated
Double screw extruder is added together by being formulated after simple and mechanical height mixes, the nearly fusing point solid-state extrusion of increase-volume-thickening-is granulated, and obtains high property
It can polyester alloy.
The specific preparation process that the nearly fusing point solid-state extrusion of above-mentioned steps (3) increase-volume-thickening-is granulated are as follows: served as a contrast using cotton blend
Shirt, wherein main component terylene accounts for 80%, and polyamide fibre accounts for 10%, cotton and accounts for 10%, is conventional products, is mixed cotton using intermediate introducing method
It spins shirt to be introduced into double screw extruder from vent position, compatilizer is that glycidyl methacrylate graft ethylene-is pungent
Alkene copolymer (PE-g-GMA), toughener are that maleic anhydride is grafted EPDM, transesterification solvent ethylene glycol, nanometer calcium carbonate, antioxygen
1010/irgasfos 168 of agent, silicone powder are squeezed by the nearly fusing point solid-state extrusion of reaction equation double screw extruder In Situ Compatibilization-thickening-
Temperature setting of the temperature from feed opening to head is followed successively by 190,210,215,220,230,230,235 DEG C out, and screw speed is
100 r/min prepare high-performance polyester alloy.
Claims (10)
1. a kind of utilize the polyester alloy for recycling blended textile fabric preparation, which is characterized in that the raw material group matched by following weight
At:
Recycle 70 ~ 95 parts of blended textile fabric, 1-5 parts of compatilizer, 5-15 parts of toughener, 0.5-5 parts of response type monomer, nano-mineral
0.5-4 parts of filler, 0.1-0.5 parts of antioxidant, 0.1-0.5 parts of lubricant.
2. a kind of polyester alloy prepared using blended textile fabric is recycled according to claim 1, which is characterized in that described
Blended textile fabric is recycled, according to natural fiber/synthetic fibers, synthetic fibers/synthetic fibers composition and design feature, using silk ribbon
The blended textile of synthetic fibre, polypropylene fibre, polyamide fibre, cotton spinning, clothes or shoemaking fabric leftover pieces, main ingredient are PET/PP alloys,
PET/PE alloy or other PET base polyester composites.
3. a kind of polyester alloy prepared using blended textile fabric is recycled according to claim 1, which is characterized in that described
Compatilizer, for PE-g-GMA, POE-g-GMA, PP-g-GMA, PA66 and PET graft or block copolymer, block copolymer
Selected from ethylene-methyl acrylate-glyceryl methacrylate random terpolymer, Ethylene-butyl acrylate-methyl-prop
One of olefin(e) acid glycidyl ester copolymer, acrylate copolymer, methyl methacrylate-butadiene-styrene are more
Kind.
4. a kind of polyester alloy prepared using blended textile fabric is recycled according to claim 1, which is characterized in that described
Toughener, for grafting EPDM or the thermoplastic elastomer (TPE) of grafting.
5. a kind of polyester alloy prepared using blended textile fabric is recycled according to claim 1, which is characterized in that described
Response type monomer, in difunctional, trifunctional or multi-functional polyaldehyde, polyalcohol, polybasic carboxylic acid or polyester
It is one or more.
6. a kind of polyester alloy prepared using blended textile fabric is recycled according to claim 1, which is characterized in that described
Nano-mineral filler, compounded selected from one of calcium carbonate, talcum powder, barium sulfate, wollastonite, kaolin or hydridization it is a variety of,
Particle size range is 500nm ~ 1 μm.
7. a kind of polyester alloy prepared using blended textile fabric is recycled according to claim 1, which is characterized in that described
Antioxidant is selected from one of Hinered phenols or phosphite ester compound or compounding is a variety of.
8. a kind of polyester alloy prepared using blended textile fabric is recycled according to claim 1, which is characterized in that described
Lubricant is selected from ethylene double hard amide, pentaerythritol stearate, polyethylene wax, oxidized polyethylene wax, silicone powder, silicone master batch
One of or a variety of compositions mixture.
9. a kind of any preparation method using the polyester alloy for recycling blended textile fabric preparation of claim 1-8, packet
Include following steps:
(1) the blended textile fabric of recycling for collecting the various colors come is crushed respectively, washed, is dried in vacuo, form foam
Material；
(2) foam material is put into smelting furnace and carries out melting, reached molten condition, then filter, remove inorganic impurity, half must be granulated
Finished product raw material；
(3) semi-finished stock and compatilizer, toughener, response type monomer, antioxidant, lubricant, nano-mineral filler will be granulated
Screw extruder is added together by being formulated after simple and mechanical height mixes, the nearly fusing point solid-state extrusion of increase-volume-thickening-is granulated, and obtains high-performance
Polyester alloy.
10. a kind of preparation method using the polyester alloy for recycling blended textile fabric preparation according to claim 9, special
Sign is that the screw extruder is one of single screw extrusion machine, parallel dual-screw extruding machine, three-screw extruder.
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| CN201910417764.3A CN110093018A (en) | 2019-05-20 | 2019-05-20 | It is a kind of to utilize the polyester alloy and preparation method thereof for recycling blended textile fabric preparation |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111978711A (en) * | 2020-07-16 | 2020-11-24 | 太仓市保绿佳塑料制品有限公司 | Waste garment and waste fiber spinning cyclic recycling manufacturing process |
| CN113174696A (en) * | 2021-03-08 | 2021-07-27 | 苏州多瑈新材料科技有限公司 | Super-soft anti-sticking composite non-woven fabric and preparation method thereof |
| CN113214543A (en) * | 2021-06-02 | 2021-08-06 | 吉林庭然景观材料科技有限公司 | Wood-plastic plate prepared by recycling waste clothes, section bar and preparation method |
| CN114085503A (en) * | 2021-12-23 | 2022-02-25 | 上海日之升科技有限公司 | PET resin with low dyne value and preparation method thereof |
| TWI776723B (en) * | 2021-11-03 | 2022-09-01 | 林正雄 | Recycled products using waste fabrics and preparation method thereof |
| CN115181353A (en) * | 2021-12-17 | 2022-10-14 | 林正雄 | Clothing fiber wood and preparation method thereof |
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