CN108034104A - Polyethylene injection composition and polyethylene injection moulded products and preparation method thereof - Google Patents
Polyethylene injection composition and polyethylene injection moulded products and preparation method thereof Download PDFInfo
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- CN108034104A CN108034104A CN201711146252.5A CN201711146252A CN108034104A CN 108034104 A CN108034104 A CN 108034104A CN 201711146252 A CN201711146252 A CN 201711146252A CN 108034104 A CN108034104 A CN 108034104A
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- -1 Polyethylene Polymers 0.000 title claims abstract description 61
- 239000004698 Polyethylene Substances 0.000 title claims abstract description 60
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 60
- 239000007924 injection Substances 0.000 title claims abstract description 43
- 238000002347 injection Methods 0.000 title claims abstract description 43
- 239000000203 mixture Substances 0.000 title claims abstract description 41
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 97
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 97
- 239000004703 cross-linked polyethylene Substances 0.000 claims abstract description 77
- 229920003020 cross-linked polyethylene Polymers 0.000 claims abstract description 77
- 239000002699 waste material Substances 0.000 claims abstract description 64
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 15
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 15
- 238000001746 injection moulding Methods 0.000 claims abstract description 14
- 239000000314 lubricant Substances 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 36
- 239000000843 powder Substances 0.000 claims description 25
- 238000005452 bending Methods 0.000 claims description 15
- 150000001336 alkenes Chemical class 0.000 claims description 11
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 10
- 238000005453 pelletization Methods 0.000 claims description 8
- 239000000155 melt Substances 0.000 claims description 6
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 4
- 238000004132 cross linking Methods 0.000 claims description 4
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 claims description 4
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 4
- 235000021355 Stearic acid Nutrition 0.000 claims description 3
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims description 3
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims description 3
- 229920001577 copolymer Polymers 0.000 claims description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 3
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 3
- 239000008117 stearic acid Substances 0.000 claims description 3
- OKOBUGCCXMIKDM-UHFFFAOYSA-N Irganox 1098 Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)NCCCCCCNC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 OKOBUGCCXMIKDM-UHFFFAOYSA-N 0.000 claims description 2
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 claims description 2
- 235000019359 magnesium stearate Nutrition 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims description 2
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical group [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 2
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 claims 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims 1
- 229940106691 bisphenol a Drugs 0.000 claims 1
- 229910052791 calcium Inorganic materials 0.000 claims 1
- 239000011575 calcium Substances 0.000 claims 1
- 235000001465 calcium Nutrition 0.000 claims 1
- 238000013459 approach Methods 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 13
- 238000012360 testing method Methods 0.000 description 8
- 239000002131 composite material Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 5
- 239000003063 flame retardant Substances 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229920001169 thermoplastic Polymers 0.000 description 3
- 239000004416 thermosoftening plastic Substances 0.000 description 3
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000003607 modifier Substances 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 229920002725 thermoplastic elastomer Polymers 0.000 description 2
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 1
- 239000008116 calcium stearate Substances 0.000 description 1
- 235000013539 calcium stearate Nutrition 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 239000013530 defoamer Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- UEZVMMHDMIWARA-UHFFFAOYSA-M phosphonate Chemical compound [O-]P(=O)=O UEZVMMHDMIWARA-UHFFFAOYSA-M 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 239000010117 shenhua Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 229920006132 styrene block copolymer Polymers 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- 239000010920 waste tyre Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- 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
- C08L2205/03—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
- 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
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
-
- 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
Abstract
The present invention relates to polyethylene injection molding field, and in particular to polyethylene injection composition and polyethylene injection moulded products and preparation method thereof.Said composition contains：High density polyethylene (HDPE), waste and old crosslinked polyethylene, lubricant and antioxidant, wherein, the weight ratio of the high density polyethylene (HDPE) and waste and old crosslinked polyethylene is 100：10‑100；The gel content of the waste and old crosslinked polyethylene is 20 65 weight %.The present invention for waste and old crosslinked polyethylene provides a kind of new application approach, both reduced environmental pollution, and economized on resources, but can using waste and old crosslinked polyethylene as toughened system, higher high density polyethylene (HDPE) injection moulded products of obtained toughness at low cost.
Description
Technical field
The present invention relates to polyethylene injection molding field, and in particular to polyethylene injection composition and polyethylene injection moulded products
And preparation method thereof.
Background technology
Crosslinked polyethylene is the tridimensional network with heat curing type by being cross-linked to form by linear molecule polyethylene
Polyethylene products.Such a thermosetting plastics material, heat will not melt, and also be insoluble in organic solvent.In general, crosslinked polyethylene exists
The fields such as chemical industry, building, electric power, packaging, which all have, to have been widely used, but is inevitably produced in application process big
The waste and old crosslinked polyethylene of amount, such as thus debugging shaping cuts what is formed.For the processing method one of waste and old crosslinked polyethylene
As be bury or as fuel burn up, it is impossible to be recycled the plastic products for making new.In recent years, it is external once to carry out
Recycle the experimental method of waste and old crosslinked polyethylene using high temperature and pressure fractionating process, but because of complex process, cost it is excessive and without reality
Meaning.
CN104385485A discloses a kind of discarded crosslinked polyethylene salvage material and its recovery method, and this method is first will
Discarded crosslinked polyethylene is ground into the pellet of 0.5-2cm, is subsequently placed in solid state mechanochemistry reactor and mills, mill processes
It is middle control cooling cycle water temperature be 5~30 DEG C, pressure of milling is 10~50MPa, and mill 10~1000rpm of rotating speed, grinding times
For 5-30 times.Discarded crosslinked polyethylene powder is milled into powder by this method, its granularity is 100-500 mesh, and passes through surname extraction
The gel content ＜ 60% of device to test.This method can selectively cut off C-O keys in discarded crosslinked polyethylene and Si-
O keys, the cross-bond of its three-dimensional crosslinking structure is disconnected, changes its original insoluble insoluble characteristic, improves the hot plastic of material
Property and melt fluidity, impart discarded crosslinked polyethylene salvage material thermoplastic processing again, make its obtain salvage material
High-valued salvage material and product that can be excellent by the conventional thermoplastic processing method processability such as extruding, rolling.The party
Method mainly utilizes specific Mechanico-chemical reactor, repeatedly mills so that waste and old crosslinked polyethylene can have hot plastic again
Property；This method destroys the property of waste and old crosslinked polyethylene script, does not efficiently use the property of waste and old crosslinked polyethylene itself
Can feature.
CN105175976A discloses a kind of modified waste polyethylene pipe PP Pipe Compound and preparation method thereof.The PP Pipe Compound
Weight composition be：Waste and old 100 parts of recycle polyethylene, 3~30 parts of composite toughening modifier, 3~5 parts of inorganic filler, crosslinking agent
0.02~0.2 part, 0.05~0.1 part of antioxidant, 1~7 part of black agglomerate, 0.1~0.5 part of defoamer, the composite toughening changes
Property agent is with rubber powder of waste tire, SBS and LLDPE resins, is made with scientific and reasonable ratio.This method utilizes what is optimized
Composite toughening modifier, improves the degree of cross linking of each related component in composite system, makes up composite system tensile strength
Value, controls the gel content and mobility of modified material system, achievees the purpose that to optimize composite system mechanical property.It is grasped
Make simply, it is adaptable, it is easy to industrialized production, not only reduces production cost, and reduces solid waste to environment
Pollution, there is significant economic benefit and social benefit.However, it is low there are the strength of materials, and injection molding cannot be carried out
The defects of processing.
CN102898768B discloses a kind of flame-retardant thermoplastic elastomer using discarded cross-linked poly-ethylene cable material production
And preparation method thereof, by weight comprising following component：Discarded 200~400 parts of cross-linked poly-ethylene cable material, styrene-fourth
300~500 parts of styrene block copolymer, 10~100 parts of filling oil, 1~20 part of silane coupling agent, Phosphonate Flame Retardant
100~200 parts of agent, 0~10 part of other auxiliary agents.The flame-proofed thermoplastic bullet that this method is produced using discarded cross-linked poly-ethylene cable material
Property body be that discarded cross-linked poly-ethylene cable material recycles the approach of providing, cost can be reduced, reduced environmental pollution, save
Resource.Prepared flame-retardant thermoplastic elastomer has superior flame retardant type and other performance meets standard.But this method is
It is subject to fire retardant by matrix of waste and old crosslinked polyethylene, improves system fire resistance, only relate to what waste and old crosslinked polyethylene utilized
On the one hand, do not disclose and used as toughened system.
The content of the invention
Higher highly dense of toughness is made at low cost from waste and old crosslinked polyethylene object of the present invention is to provide a kind of
Spend polyethylene injection composition and polyethylene injection moulded products of polyethylene injection moulded products and preparation method thereof.
The present inventor, which studies, to be found, when waste and old crosslinked polyethylene of the selection with certain gel content and the present invention
The other compositions of composition be used cooperatively down, enable to high density polyethylene (HDPE) and its blend injection molding to obtain high tenacity
High density polyethylene (HDPE) injection moulded products, have thus completed the present invention.
For this reason, one aspect of the present invention provides a kind of polyethylene injection composition, said composition contains：High-density polyethylene
Alkene, waste and old crosslinked polyethylene, lubricant and antioxidant, wherein, the weight of the high density polyethylene (HDPE) and waste and old crosslinked polyethylene
Than for 100：10-100；The gel content of the waste and old crosslinked polyethylene is 20-65 weight %.
Second aspect of the present invention provides the polyethylene injection moulded products as made from above-mentioned composition.
Third aspect present invention provides a kind of preparation method of polyethylene injection moulded products, and this method includes：By combinations thereof
Thing mix and extruding pelletization, obtains master batch；Gained master batch is subjected to injection molding, obtains polyethylene injection moulded products.
Fourth aspect present invention provides the polyethylene injection moulded products as made from the above method.
The present invention provides a kind of new application approach for waste and old crosslinked polyethylene, both reduced environmental pollution, and economized on resources,
Again can using waste and old crosslinked polyethylene as toughened system, the higher high density polyethylene (HDPE) injection moulded products of toughness are made at low cost.
Embodiment
The endpoint of disclosed scope and any value are not limited to the accurate scope or value herein, these scopes or
Value should be understood to comprising the value close to these scopes or value.For number range, between the endpoint value of each scope, respectively
It can be combined with each other between the endpoint value of a scope and single point value, and individually between point value and obtain one or more
New number range, these number ranges should be considered as specific open herein.
One aspect of the present invention provides a kind of polyethylene injection composition, and said composition contains：It is high density polyethylene (HDPE), waste and old
Crosslinked polyethylene, lubricant and antioxidant, wherein, the weight ratio of the high density polyethylene (HDPE) and waste and old crosslinked polyethylene is 100：
10-100；The gel content of the waste and old crosslinked polyethylene is 20-65 weight %.
According to the present invention, the combination with the present invention is used for by using the waste and old crosslinked polyethylene with particular gel content
Other components in thing coordinate, and the polyethylene injection system with excellent mechanical property and processing performance can be made at low cost
Product.
Wherein, the gel content of the waste and old crosslinked polyethylene is 20-65 weight %, when the waste and old crosslinked polyethylene
When gel content is less than 20 weight %, it is meant that waste and old recycling crosslinked polyethylene toughening effect is deteriorated, and end article can be caused to become
The defects of crisp；If the gel content of the waste and old crosslinked polyethylene is more than 65 weight %, it is meant that the gel content of product carries
Height, can cause product poor processability.It is highly preferred that the gel content of the waste and old crosslinked polyethylene is 30-60 weight %.
According to the present invention, the waste and old crosslinked polyethylene is commonly referred to as forming concrete application product in crosslinked polyethylene
When, such as crosslinked polyethylene rotomoulded articles, cable material and the leftover pieces being cut.In order to promote waste and old crosslinking poly-
Ethene and other components uniformly contact, it is preferable that the waste and old crosslinked polyethylene is waste and old crosslinked polyethylene powder, its granularity
It is preferably 30-100 mesh for 30-400 mesh.
According to the present invention, just can although with the waste and old crosslinked polyethylene of the particular gel content in content range of the present invention
Enough mechanical properties to the injection-molded item of high density polyethylene (HDPE) have strengthened, but have more strong mechanical performance in order to obtain and add
The polyethylene injection composition of work performance, it is preferable that the density of the high density polyethylene (HDPE) is 0.94-0.97g/cm3, preferably
For 0.945-0.97g/cm3, melt index 0.5-25g/10min, density and melt index here refer to that high density is gathered
The density and melt index of ethene.Preferably, the number-average molecular weight of the high-density polyethylene alkenes is 10,000-80,000, excellent
Elect 12,000-40,000 as.It for example can be polyethylene 8007, polyethylene 8920 as such high-density polyethylene alkenes, gather
Ethene 1600J, polyethylene 5000S or its blend.In order to promote high density polyethylene (HDPE) to be contacted with the uniform of other components,
Preferably, the high density polyethylene (HDPE) is high density polyethylene (HDPE) powder, its granularity is 30-400 mesh, is preferably 30-100 mesh.
In a kind of preferred embodiment of the present invention, the high density polyethylene (HDPE) is the first high density polyethylene (HDPE) and the
The combination of two high density polyethylene (HDPE)s, wherein, the melt index of the first high density polyethylene (HDPE) is 0.5-10g/10min, is preferably 5-
10g/10min；The melt index of second high density polyethylene (HDPE) is more than 10g/10min and below 25g/10min, is preferably
15-25g/10min.The weight ratio of first high density polyethylene (HDPE) and the second high density polyethylene (HDPE) is preferably 100：20-200, it is excellent
Elect 100 as：50-150.
According to the present invention, in the composition, the weight ratio of the high density polyethylene (HDPE) and waste and old crosslinked polyethylene is
100：10-100, thus the high density polyethylene (HDPE) and waste and old crosslinked polyethylene, which can cooperate, obtains processing performance and mechanics
Polyethylene injection composition both with performance.Preferably, the weight ratio of the high density polyethylene (HDPE) and waste and old crosslinked polyethylene
For 100：20-80, is preferably 100：30-75, more preferably 100：40-70.
According to the present invention, in the composition, in the case of containing antioxidant and/or lubricant, it is preferable that relative to
The total amount of the high density polyethylene (HDPE) of 100 parts by weight and waste and old crosslinked polyethylene, the content of the lubricant is 0.1-1 parts by weight,
The content of the antioxidant is 0.05-0.5 parts by weight.It is highly preferred that relative to the high density polyethylene (HDPE) of 100 parts by weight and waste and old
The total amount of crosslinked polyethylene, the content of the lubricant is 0.2-0.5 parts by weight, and the content of the antioxidant is 0.1-0.3 weights
Measure part.
In accordance with the present invention it is preferred that the antioxidant is antioxidant 1010, irgasfos 168, antioxidant 1098, antioxidant
At least one of 264 and bisphenol-A.
In accordance with the present invention it is preferred that the lubricant is in zinc stearate, calcium stearate, magnesium stearate and stearic acid
It is at least one.
According to the present invention, the composition can also contain compatilizer.Preferably, the compatilizer is grafted for maleic anhydride
Ethylene-octene copolymer and/or glycidyl methacrylate graft ethylene-octene copolymer.
Wherein, the dosage of the compatilizer can be changed in relative broad range, in the case of containing compatilizer, it is preferable that
Relative to the high density polyethylene (HDPE) of 100 parts by weight and the total amount of waste and old crosslinked polyethylene, the content of the compatilizer is 2-10 weights
Part is measured, is preferably 3-8 parts by weight.
Above-mentioned each additive can be commercially available product, and there is no particular limitation to this by the present invention.
Second aspect of the present invention provides the polyethylene injection moulded products as made from above-mentioned composition.
Third aspect present invention provides a kind of preparation method of polyethylene injection moulded products, and this method includes：By combinations thereof
Thing mix and extruding pelletization, obtains master batch；Gained master batch is subjected to injection molding, obtains polyethylene injection moulded products.
According to the present invention, the species of the composition and its dosage are as described above, and the present invention is no longer superfluous herein
State.
In the case of, according to the invention it is preferred to, the temperature of the extruding pelletization is 180-210 DEG C.The extruding pelletization can be
Carried out in the extruder of this area routine, there is no particular limitation to this by the present invention, such as in double screw extruder, screw rod turns
Speed for example can be 100-150 revs/min.The granularity of gained master batch is preferably 2-6mm.
In the case of, according to the invention it is preferred to, the condition of the injection molding includes：Temperature is 190-230 DEG C, injection pressure
For 800-1100bar, briquetting pressure 450-650bar.The injection molding can in the various injection molding machines of this area routine into
OK, there is no particular limitation to this by the present invention.
Fourth aspect present invention provides the polyethylene injection moulded products as made from the above method.
Polyethylene injection moulded products have the mechanical property and processing performance of higher made from the method for the present invention, it is preferable that should
The melt index of polyethylene injection moulded products is 0.1-15g/10min, is preferably 1-10g/10min, more preferably 2-10g/10min,
Still more preferably it is 4-8g/10min；Impact strength is 10-25kJ/m2, it is preferably 13-22kJ/m2, more preferably 15-
20kJ/m2；Bending modulus is 850-1100MPa, is preferably 900-1100MPa, more preferably 950-1100MPa.
The present invention will be described in detail by way of examples below.
In example below：
Impact property test method：Izod (jagged) impact strengths according to GB/T1843-2008 method measurement and
Determine, test temperature is 23 DEG C；
Bending modulus is tested using Instron5965 types testing machine according to GB9341-2008 methods, program fetch section
The elastic mould value of 0.005-0.0025mm/mm is the bending modulus of composition material, and test temperature is 23 DEG C.
Gel content：Obtained according to ASTM-D2765 using measure dimethylbenzene insolubles content.
The measure of melt index：Measured according to the assay method in GB/T3682-2000.
1# polyethylene is the high density polyethylene (HDPE) 8007 purchased from packet header coal-to-olefin company of Shenhua, its density is 0.963g/
cm3, melt index is 8.5g/10min (testing standard ASTM D-1238,190 DEG C), and number-average molecular weight 13,893, forms grain
Spend for the powder of 30-100 mesh.
2# polyethylene is the high density polyethylene (HDPE) 8920 purchased from Tianjin affiliated company, its density is 0.954g/cm3, melting
Index is 20g/10min (testing standard ASTM D-1238,190 DEG C), and number-average molecular weight 15,143, it is 30- to form granularity
The powder of 100 mesh.
The waste and old crosslinked polyethylenes of E1：Gel content is 10 weight %, and granularity is 30-400 mesh.
The waste and old crosslinked polyethylenes of E2：Gel content is 30 weight %, and granularity is 30-400 mesh.
The waste and old crosslinked polyethylenes of E3：Gel content is 60 weight %, and granularity is 30-400 mesh.
The waste and old crosslinked polyethylenes of E4：Gel content is 70 weight %, and granularity is 30-400 mesh.
Antioxidant is the antioxidant 1010 for being purchased from Sinopharm Chemical Reagent Co., Ltd..
Compatilizer is maleic anhydride grafted high density polyethylene (MAH-g-HDPE GR204), is purchased from DOW Chemical, melting
Index is 12g/10min (testing standard ASTM D-1238,190 DEG C, 2.16kg), density 0.954g/cm3(testing standard：
ASTM D-1505), grafted maleic anhydride amount is 0.6-0.8% (titration).
Embodiment 1
The present embodiment is used for injection molded polyethylene composition and polyethylene injection-molded item and its preparation side for illustrating the present invention
Method.
(1) by high-density polyethylene alkenes powder, waste and old crosslinked polyethylene powder, lubricant, antioxidant and optionally compatible
Agent (species and dosage are shown in Table 1), which is added in high mixer, to be uniformly mixed, and gained mixture then is added to double spiral shells
In bar extruder, at 200 DEG C, screw speed be 100 revs/min under carry out extruding pelletization, obtain master batch；
(2) master batch is added in injection molding machine, 210 DEG C, injection pressure 980bar, briquetting pressure be 550bar under into
Row injection molding, obtains polyethylene injection-molded item.
Its melt index, impact strength, bending modulus and gel content are shown in Table 2.
Embodiment 2
The present embodiment is used for injection molded polyethylene composition and polyethylene injection-molded item and its preparation side for illustrating the present invention
Method.
According to the method described in embodiment 1, except that：
High-density polyethylene alkenes powder, waste and old crosslinked polyethylene powder, antioxidant, the kind of lubricant and optional volume compatilizer
Class and dosage are shown in Table 1；
In step (1), at 180 DEG C, screw speed be 150 revs/min under carry out extruding pelletization, obtain master batch；
In step (2), 210 DEG C, injection pressure 800bar, briquetting pressure be 600bar under carry out injection molding, obtain
To polyethylene injection-molded item.
Its melt index, impact strength, bending modulus and gel content are shown in Table 2.
Embodiment 3
The present embodiment is used to illustrate crosslinked polyethylene composition and crosslinked polyethylene of the present invention and preparation method thereof.
According to the method described in embodiment 2, the difference is that, the content of waste and old crosslinked polyethylene powder is as shown in Table 1, by
This obtains polyethylene injection-molded item.
Its melt index, impact strength, bending modulus and gel content are shown in Table 2.
Embodiment 4
The present embodiment is used to illustrate crosslinked polyethylene composition and crosslinked polyethylene of the present invention and preparation method thereof.
According to the method described in embodiment 2, the difference is that, the content of waste and old crosslinked polyethylene powder is as shown in Table 1, by
This obtains polyethylene injection-molded item.
Its melt index, impact strength, bending modulus and gel content are shown in Table 2.
Embodiment 5
The present embodiment is used to illustrate crosslinked polyethylene composition and crosslinked polyethylene of the present invention and preparation method thereof.
According to the method described in embodiment 2, the difference is that, the species of high-density polyethylene alkenes powder is as shown in Table 1, by
This obtains polyethylene injection-molded item.
Its melt index, impact strength, bending modulus and gel content are shown in Table 2.
Embodiment 6
The present embodiment is used to illustrate crosslinked polyethylene composition and crosslinked polyethylene of the present invention and preparation method thereof.
According to the method described in embodiment 2, the difference is that, the species of high-density polyethylene alkenes powder is as shown in Table 1, by
This obtains polyethylene injection-molded item.
Its melt index, impact strength, bending modulus and gel content are shown in Table 2.
Comparative example 1
According to the method described in embodiment 2, the difference is that, the waste and old crosslinked polyethylene powder is E1, and gel content is
10 weight %, thus obtain polyethylene injection-molded item.
Its melt index, impact strength, bending modulus and gel content are shown in Table 2.
Comparative example 2
According to the method described in embodiment 2, the difference is that, the waste and old crosslinked polyethylene powder is E4, and gel content is
70 weight %, thus obtain polyethylene injection-molded item.
Its melt index, impact strength, bending modulus and gel content are shown in Table 2.
Comparative example 3
According to the method described in embodiment 2, unlike, using etc. parts by weight high-density polyethylene alkenes powder replace it is useless
Old acquaintance joins polyethylene powder, thus obtains polyethylene injection-molded item.
Its melt index, impact strength, bending modulus and gel content are shown in Table 2.
Comparative example 4
According to the method described in embodiment 2, the difference is that, the dosage of the high-density polyethylene alkenes powder used is 94 weight
Part, the dosage of waste and old crosslinked polyethylene powder is 6 parts by weight；Thus polyethylene injection-molded item is obtained.
Its melt index, impact strength, bending modulus and gel content are shown in Table 2.
Comparative example 5
According to the method described in embodiment 2, the difference is that, the dosage of the high-density polyethylene alkenes powder used is 40 weight
Part, the dosage of waste and old crosslinked polyethylene powder is 60 parts by weight；Thus polyethylene injection-molded item is obtained.
Its melt index, impact strength, bending modulus and gel content are shown in Table 2.
Table 1
Table 2
It can be seen that by the result of table 2 and be blended by adding the modified toughened high density polyethylene (HDPE) of waste and old crosslinked polyethylene
Thing can make product reach optimal mechanical property, and especially product toughness significantly improves, and is expanded injection application.
The preferred embodiment of the present invention described in detail above, still, the present invention is not limited thereto.In the skill of the present invention
In art concept, technical scheme can be carried out a variety of simple variants, including each technical characteristic with it is any its
Its suitable method is combined, these simple variants and combination should equally be considered as content disclosed in this invention, belong to
Protection scope of the present invention.
Claims (10)
1. a kind of polyethylene injection composition, it is characterised in that said composition contains：High density polyethylene (HDPE), waste and old crosslinking are poly-
Ethene, lubricant and antioxidant, wherein, the weight ratio of the high density polyethylene (HDPE) and waste and old crosslinked polyethylene is 100：10-
100；The gel content of the waste and old crosslinked polyethylene is 20-65 weight %.
2. composition according to claim 1, wherein, the gel content of the waste and old crosslinked polyethylene is 30-60 weights
Measure %；
Preferably, the waste and old crosslinked polyethylene is that granularity is the waste and old crosslinked polyethylene powder of 30-400 purposes；
Preferably, the density of the high density polyethylene (HDPE) is 0.94-0.97g/cm3, melt index 0.5-25g/10min；
Preferably, the high density polyethylene (HDPE) is the high density polyethylene (HDPE) powder that granularity is 30-400 mesh；
Preferably, the high density polyethylene (HDPE) is the combination of the first high density polyethylene (HDPE) and the second high density polyethylene (HDPE), wherein, the
The melt index of one high density polyethylene (HDPE) is 0.5-10g/10min, is preferably 5-10g/10min；Second high-density polyethylene
The melt index of alkene is more than 10g/10min and below 25g/10min, is preferably 15-25g/10min.
3. composition according to claim 1 or 2, wherein, the weight of the high density polyethylene (HDPE) and waste and old crosslinked polyethylene
Amount is than being 100：20-80, is preferably 100：30-75；
Preferably, contain relative to the high density polyethylene (HDPE) of 100 parts by weight and the total amount of waste and old crosslinked polyethylene, the lubricant
Measure as 0.1-1 parts by weight, the content of the antioxidant is 0.05-0.5 parts by weight.
4. according to the composition described in any one in claim 1-3, wherein, the lubricant is zinc stearate, stearic acid
At least one of calcium, magnesium stearate and stearic acid；
Preferably, the antioxidant be antioxidant 1010, irgasfos 168, antioxidant 1098, antioxidant 264 and bisphenol-A in extremely
Few one kind.
5. according to the composition described in any one in claim 1-4, wherein, the composition also contains compatilizer, described
Compatilizer is copolymerized for maleic anhydride grafted ethene-octene copolymer and/or glycidyl methacrylate graft ethylene-octene
Thing；
Preferably, contain relative to the high density polyethylene (HDPE) of 100 parts by weight and the total amount of waste and old crosslinked polyethylene, the compatilizer
Measure as 2-10 parts by weight.
6. polyethylene injection moulded products made from the composition in a kind of 1-5 as claim described in any one.
7. a kind of preparation method of polyethylene injection moulded products, this method include：Composition described in claim 1-5 is mixed
And extruding pelletization, obtain master batch；Gained master batch is subjected to injection molding, obtains polyethylene injection moulded products.
8. according to the method described in claim 7, wherein, the temperature of the extruding pelletization is 180-210 DEG C；
Preferably, the condition of the injection molding includes：Temperature is 190-230 DEG C, injection pressure 800-1100bar, shaping
Pressure is 450-650bar.
9. the polyethylene injection moulded products as made from the method described in claim 7 or 8.
10. polyethylene injection moulded products according to claim 9, wherein, the melt index of the polyethylene injection moulded products is 0.1-
15g/10min, is preferably 1-10g/10min, more preferably 2-10g/10min；Impact strength is 10-25kJ/m2, it is preferably
13-22kJ/m2, more preferably 15-20kJ/m2；Bending modulus is 850-1100MPa, is preferably 900-1100MPa, more preferably
950-1100MPa。
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001149882A (en) * | 1999-11-26 | 2001-06-05 | Amuko Enterprise Kk | Water barrier sheet |
| CN102585256A (en) * | 2011-12-30 | 2012-07-18 | 浙江宝利纳材料科技有限公司 | Method for toughening recovered high density polyethylene plastic |
| CN103554628A (en) * | 2013-11-21 | 2014-02-05 | 四川塑金科技有限公司 | Special material for tubular product produced by recovering and modifying waste cross-linked PE (Poly Ethylene) cable material as well as preparation method of special material |
| CN103865143A (en) * | 2012-12-11 | 2014-06-18 | 神华集团有限责任公司 | Crosslinkable polyethylene blend composition |
| CN104277298A (en) * | 2014-10-25 | 2015-01-14 | 安徽杰奥玛克合成材料科技有限公司 | Modified geogrid processed by using waste cross-linked polyethylene cable material and preparation method of modified geogrid |
| CN107001733A (en) * | 2014-12-22 | 2017-08-01 | 北欧化工公司 | Composition based on the regenerated polythene from cable waste material |
-
2017
- 2017-11-17 CN CN201711146252.5A patent/CN108034104A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001149882A (en) * | 1999-11-26 | 2001-06-05 | Amuko Enterprise Kk | Water barrier sheet |
| CN102585256A (en) * | 2011-12-30 | 2012-07-18 | 浙江宝利纳材料科技有限公司 | Method for toughening recovered high density polyethylene plastic |
| CN103865143A (en) * | 2012-12-11 | 2014-06-18 | 神华集团有限责任公司 | Crosslinkable polyethylene blend composition |
| CN103554628A (en) * | 2013-11-21 | 2014-02-05 | 四川塑金科技有限公司 | Special material for tubular product produced by recovering and modifying waste cross-linked PE (Poly Ethylene) cable material as well as preparation method of special material |
| CN104277298A (en) * | 2014-10-25 | 2015-01-14 | 安徽杰奥玛克合成材料科技有限公司 | Modified geogrid processed by using waste cross-linked polyethylene cable material and preparation method of modified geogrid |
| CN107001733A (en) * | 2014-12-22 | 2017-08-01 | 北欧化工公司 | Composition based on the regenerated polythene from cable waste material |
Non-Patent Citations (3)
| Title |
|---|
| KALYANEE SIRISINHA • PHAWITPORN CHUAYTHONG: "Reprocessable silane-crosslinked polyethylene: property and utilization as toughness enhancer for high-density polyethylene", 《JOURNAL OF MATERIALS SCIENCE》 * |
| 娄春华 等: "《聚合物结构与性能》", 31 May 2016, 哈尔滨：哈尔滨工程大学出版社 * |
| 段子忠: "《塑料配方设计及应用900例》", 30 September 1995, 中国石化出版社 * |
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