CN105906904A - Energy-saving environment-friendly process for preparing high-pressure polyethylene with waste packaging films - Google Patents

Energy-saving environment-friendly process for preparing high-pressure polyethylene with waste packaging films Download PDF

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Publication number
CN105906904A
CN105906904A CN201610289883.1A CN201610289883A CN105906904A CN 105906904 A CN105906904 A CN 105906904A CN 201610289883 A CN201610289883 A CN 201610289883A CN 105906904 A CN105906904 A CN 105906904A
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waste
polyethylene
materials
feeding
high pressure
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孙卫东
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Anhui Huachen Plastic Technology Co Ltd
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Anhui Huachen Plastic Technology Co Ltd
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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
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/06—Polyethene
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/02—Inorganic compounds
    • C11D7/04—Water-soluble compounds
    • C11D7/10—Salts
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/26—Organic compounds containing oxygen
    • C11D7/264—Aldehydes; Ketones; Acetals or ketals
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/26—Organic compounds containing oxygen
    • C11D7/265—Carboxylic acids or salts thereof
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/32—Organic compounds containing nitrogen
    • C11D7/3281—Heterocyclic compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/34—Organic compounds containing sulfur
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/40—Products in which the composition is not well defined
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/40—Products in which the composition is not well defined
    • C11D7/44—Vegetable products
    • 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
    • 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
    • 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
    • C08L2205/08—Polymer mixtures characterised by other features containing additives to improve the compatibility between two polymers
    • 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)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Inorganic Chemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Abstract

The invention relates to an energy-saving environment-friendly process for preparing high-pressure polyethylene with waste packaging films. The process includes the steps: (1) collecting waste high-pressure polyethylene products such as waste high-pressure films or label paper, removing bulk sundries by selection, and classifying according to color; (2) adopting a crusher to crush the waste high-pressure polyethylene prior to feeding the crushed high-pressure polyethylene into a cleaning tank, stirring and cleaning with a stirring rod in the cleaning tank, and pushing suspending materials into a spin dryer via the stirring rod; (3) feeding the materials spin-dried by the spin dryer into an extruder for extrusion and granulation to obtain semi-finished granules, taking 200g of the semi-finished granule, adding 15g of methyl vinyl silicone rubber, 5g of nano silicon carbide, 5g of compatilizer, 2g of activator, 4g of flame retardant and 4g of lubricant, feeding the materials into a mixer for mixing, and feeding the mixed materials into cryogenic equipment for cryogenic processing after uniform mixing; (4) taking out the materials after cryogenic processing, feeding the materials into a dryer for drying, and feeding the dried materials into the extruder for extrusion and granulation to obtain the high-pressure polyethylene.

Description

Waste and old packaging film prepares the energy-conserving and environment-protective technique of polyethylene from high pressure process
Technical field
The present invention relates to plastics modification technology field, be specifically related to a kind of waste and old packaging film and prepare the poly-second of high pressure The energy-conserving and environment-protective technique of alkene.
Background technology
Polyethylene from high pressure process in low-molecular-weight is the most colourless, odorless, tasteless, nontoxic liquid, high score Son amount polyethylene from high pressure process be sterling be milky waxy solid powder.The density of polyethylene from high pressure process is little, molten Melting temperature low, more than half is used for film article, next to that tubing, injection moulded products, electric wire parcel Layer etc..Can be additionally used in agricultural, the food of making and industrial packaging film, electric wire is coated with and coating, Composed paper etc..
The regeneration treating method of waste or used plastics mainly has Direct Regeneration, modification regeneration and pyrolysis recycle at present, But the most frequently used or Direct Regeneration, large-scale commercial operation the most.The Direct Regeneration of waste or used plastics Refer to, without any modification, directly be processed into after cleaned for waste or used plastics, broken, plasticizing etc. being processed Type, or the renovation process being molded by granulation aft-loaded airfoil.The advantage of this method be technology simple, Recycled product with low cost, shortcoming is that the basic mechanical performance of recycled product declines bigger.Being total to of ethene Mixed modification can be divided mainly in polyethylene race the big class of blending and modifying two in blending and modifying and polyene hydrocarbon system.Cracking Regeneration is through thermal decomposition or catalytic pyrolysis by waste or used plastics, makes the production method of micromolecular compound, it Mainly there is aerogenesis oil-producing and produce the big class of wax technology two.
Chinese patent CN101851363 discloses the renovation process of a kind of waste polyethylene, with 84.5-99.45% waste polyethylene, the crosslinking agent of 0.05-0.5wt%, 0.5-15wt% nano material is raw material； At 30-60 DEG C after the high-speed mixer mixing 3-8min of 2250-2750r/min, double at 180-195 DEG C Cross-linking in screw extruder, disperse in situ, obtain the regenerated polythene of molten condition, molten condition is again Raw polyethylene is entered by squeezing the Melt Pump setting metering connected with twin-screw by double screw extruder The plastic pipe extruder head of 160-175 DEG C, through 50-90 DEG C of cooling and shaping, one-step method prepares polyethylene pipe Material.This invention utilizes waste polyethylene regeneration to prepare one-step method with polyvinyl piping materials and completes, and material is through changing After property the most cooled directly by Melt Pump extrusion molding, save electric energy, but the regenerated polythene pipe produced The processing characteristics of material, melt strength and elongation at break are the most unsatisfactory.At present, add in the urgent need to one Regenerated polythene composition of work performance, melt strength and elongation at break and preparation method thereof.
Summary of the invention
The technical problem to be solved is to provide a kind of physics, stable chemical performance, preparation letter Single waste and old packaging film prepares the energy-conserving and environment-protective technique of polyethylene from high pressure process.
The technical problem to be solved realizes by the following technical solutions:
A kind of waste and old packaging film prepares the energy-conserving and environment-protective technique of polyethylene from high pressure process, and concrete technology step is as follows:
(1) collect the discarded polyethylene from high pressure process products such as waste and old high voltage thin film or label paper, select removal bulk Foreign material, and classify according to color；
(2) use disintegrating machine that discarded polyethylene from high pressure process is crushed, be then fed in rinse bath after crushing, In rinse bath, there was added cleaning fluid, utilize the puddler stirring and washing in rinse bath, the material warp of suspension Puddler pushes to drier；Cleaning fluid is recycled to sedimentation basin, and supernatant is back to rinse bath after precipitation In, sediment takes out processed as fertilizer；
Above-mentioned cleaning fluid is that the component by following weight is formulated: pure water 500g, white wine 20g, salt 20g, citric acid 15g, carbendazim 50g, soybean protein isolate 15g, curcumin 10g, amoxil capsule 8g, lilac extract 53g, camphor leaf extract 3g；Using said method to be carried out can be the most clear Except harmful substances such as the germs on material；
(3) the material feeding extruder extruding pelletization that drier dries obtains semi-finished granules material, takes half one-tenth Product particulate material 200g, adds methyl vinyl silicone rubber 15g, nanometer silicon carbide 5g, compatilizer 5g, activation Agent 2g, fire retardant 4g and lubricant 4g, send into batch mixer mixing, sends in Cryo Equipment and carry out after mixing K cryogenic treatment, temperature controls at subzero about 15 DEG C, K cryogenic treatment 20 minutes；The advantage of K cryogenic treatment exists In the resistance to low temperature improving reworked material；
(4) being taken out by the material after K cryogenic treatment, send into drying machine drying, the material after drying is sent into Extruder extruding pelletization i.e. obtains polyethylene from high pressure process material.
Described compatilizer be atactic styrene-maleic anhydride copolymer or methyl methacrylate-butadiene- Styrol copolymer.
Described lubricant is ethylene bis stearamide (EBS)；
Described activator be by silane coupler 20g, toughener 5g, age resister 10g, OPC 10g, Antistatic additive 5g and sodium polyphosphate 5g makes；
Described silane coupler is vinyltrimethoxy silane, VTES, vinyl Triacetoxysilane, vinyl three tert-butoxy silane or γ-(methacryloxypropyl) propyl group trimethoxy The one of base silane.
Owing to waste film surface exists hydroxyl so that it is be difficult in the base disperse, surface can be relatively big and incline To in reunion, commonly use coupling agent at present and waste or used plastics is carried out surface modification treatment.Used by the present invention Activator in waste or used plastics surface treatment process, there is chemical bonding or thing with waste or used plastics surface Reason suction-operated；Such activator is in regeneration process of waste plastics, after waste or used plastics surface is modified, Its surface is become hydrophobicity by hydrophily, improves the compatibility with matrix, and the mechanical property of product obtains Improve.
The invention has the beneficial effects as follows: the present invention uses secondary granulation technique, and adjusts formula for a product, has Effect improving product performance, has saved the energy, has reduced cost, for recycling economy, reduces pollution, protection Environment provides a brand-new technological approaches.
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and effect and be readily apparent from Solve, below in conjunction with specific embodiment, the present invention is expanded on further.
Embodiment 1
A kind of waste and old packaging film prepares the energy-conserving and environment-protective technique of polyethylene from high pressure process, and concrete technology step is as follows:
(1) collect the discarded polyethylene from high pressure process products such as waste and old high voltage thin film or label paper, select removal bulk Foreign material, and classify according to color；
(2) use disintegrating machine that discarded polyethylene from high pressure process is crushed, be then fed in rinse bath after crushing, In rinse bath, there was added cleaning fluid, utilize the puddler stirring and washing in rinse bath, the material warp of suspension Puddler pushes to drier；Cleaning fluid is recycled to sedimentation basin, and supernatant is back to rinse bath after precipitation In, sediment takes out processed as fertilizer；
Above-mentioned cleaning fluid is that the component by following weight is formulated: pure water 500g, white wine 20g, salt 20g, citric acid 15g, carbendazim 50g, soybean protein isolate 15g, curcumin 10g, amoxil capsule 8g, lilac extract 53g, camphor leaf extract 3g；Using said method to be carried out can be the most clear Except harmful substances such as the germs on material；
(3) the material feeding extruder extruding pelletization that drier dries obtains semi-finished granules material, takes half one-tenth Product particulate material 200g, adds methyl vinyl silicone rubber 15g, nanometer silicon carbide 5g, compatilizer 5g, activation Agent 2g, fire retardant 4g and lubricant 4g, send into batch mixer mixing, sends in Cryo Equipment and carry out after mixing K cryogenic treatment, temperature controls at subzero about 15 DEG C, K cryogenic treatment 20 minutes；The advantage of K cryogenic treatment exists In the resistance to low temperature improving reworked material；
(4) being taken out by the material after K cryogenic treatment, send into drying machine drying, the material after drying is sent into Extruder extruding pelletization i.e. obtains polyethylene from high pressure process material.
Described compatilizer be atactic styrene-maleic anhydride copolymer or methyl methacrylate-butadiene- Styrol copolymer.
Described lubricant is ethylene bis stearamide (EBS)；
Described activator be by silane coupler 20g, toughener 5g, age resister 10g, OPC 10g, Antistatic additive 5g and sodium polyphosphate 5g makes；
Described silane coupler is vinyltrimethoxy silane, VTES, vinyl Triacetoxysilane, vinyl three tert-butoxy silane or γ-(methacryloxypropyl) propyl group trimethoxy The one of base silane.
The general principle of the present invention and principal character and advantages of the present invention have more than been shown and described.One's own profession Skilled person will appreciate that of industry, the present invention is not restricted to the described embodiments, above-described embodiment and explanation The principle that the present invention is simply described described in book, without departing from the spirit and scope of the present invention, The present invention also has various changes and modifications, and these changes and improvements both fall within claimed invention model In enclosing.Claimed scope is defined by appending claims and equivalent thereof.

Claims (3)

1. a waste and old packaging film prepares the energy-conserving and environment-protective technique of polyethylene from high pressure process, it is characterised in that concrete Processing step is as follows:
(1) collect the discarded polyethylene from high pressure process products such as waste and old high voltage thin film or label paper, select removal bulk Foreign material, and classify according to color；
(2) use disintegrating machine that discarded polyethylene from high pressure process is crushed, be then fed in rinse bath after crushing, In rinse bath, there was added cleaning fluid, utilize the puddler stirring and washing in rinse bath, the material warp of suspension Puddler pushes to drier；Cleaning fluid is recycled to sedimentation basin, and supernatant is back to rinse bath after precipitation In, sediment takes out processed as fertilizer；
Above-mentioned cleaning fluid is that the component by following weight is formulated: pure water 500g, white wine 20g, salt 20g, citric acid 15g, carbendazim 50g, soybean protein isolate 15g, curcumin 10g, amoxil capsule 8g, lilac extract 53g, camphor leaf extract 3g；
(3) the material feeding extruder extruding pelletization that drier dries obtains semi-finished granules material, takes half one-tenth Product particulate material 200g, adds methyl vinyl silicone rubber 15g, nanometer silicon carbide 5g, compatilizer 5g, activation Agent 2g, fire retardant 4g and lubricant 4g, send into batch mixer mixing, sends in Cryo Equipment and carry out after mixing K cryogenic treatment, temperature controls at subzero about 15 DEG C, K cryogenic treatment 20 minutes；
(4) being taken out by the material after K cryogenic treatment, send into drying machine drying, the material after drying is sent into Extruder extruding pelletization i.e. obtains polyethylene from high pressure process material.
Waste and old packaging film the most according to claim 1 prepares the energy-conserving and environment-protective technique of polyethylene from high pressure process, It is characterized in that, described activator be by silane coupler 20g, age resister 10g, OPC 10g, Antistatic additive 5g, sodium polyphosphate 5g and lubricant 5g make.
Waste and old packaging film the most according to claim 2 prepares the energy-conserving and environment-protective technique of polyethylene from high pressure process, It is characterized in that, described silane coupler be vinyltrimethoxy silane, VTES, Vinyltriacetoxy silane, vinyl three tert-butoxy silane or γ-(methacryloxypropyl) propyl group The one of trimethoxy silane.
CN201610289883.1A 2016-04-28 2016-04-28 Energy-saving environment-friendly process for preparing high-pressure polyethylene with waste packaging films Pending CN105906904A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106541510A (en) * 2016-11-04 2017-03-29 大连裕丰塑料制品有限公司 A kind of low-density regenerated polythene plastic process
CN108179493A (en) * 2017-12-13 2018-06-19 安徽鸿森塑业有限公司 A kind of method using polyethylene waste material green production environmental-protection net
CN109203296A (en) * 2018-08-29 2019-01-15 贾程锦 A kind of agricultural production waste plastic reflective membrane harmless treatment process
CN110835470A (en) * 2018-08-15 2020-02-25 台山市世隆塑料有限公司 Plastic particle and preparation method thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103619553A (en) * 2011-06-20 2014-03-05 爱索尔包装有限公司 Process of recycling plastics, products and applications thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103619553A (en) * 2011-06-20 2014-03-05 爱索尔包装有限公司 Process of recycling plastics, products and applications thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
齐贵亮 主编: "《废旧塑料回收利用实用技术》", 31 October 2011 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106541510A (en) * 2016-11-04 2017-03-29 大连裕丰塑料制品有限公司 A kind of low-density regenerated polythene plastic process
CN108179493A (en) * 2017-12-13 2018-06-19 安徽鸿森塑业有限公司 A kind of method using polyethylene waste material green production environmental-protection net
CN110835470A (en) * 2018-08-15 2020-02-25 台山市世隆塑料有限公司 Plastic particle and preparation method thereof
CN109203296A (en) * 2018-08-29 2019-01-15 贾程锦 A kind of agricultural production waste plastic reflective membrane harmless treatment process

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Application publication date: 20160831