CN116218065A - High-wear-resistance low-friction polyethylene functional master batch and preparation method and application thereof - Google Patents
High-wear-resistance low-friction polyethylene functional master batch and preparation method and application thereof Download PDFInfo
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- CN116218065A CN116218065A CN202211689095.3A CN202211689095A CN116218065A CN 116218065 A CN116218065 A CN 116218065A CN 202211689095 A CN202211689095 A CN 202211689095A CN 116218065 A CN116218065 A CN 116218065A
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- 239000004698 Polyethylene Substances 0.000 title claims abstract description 126
- -1 polyethylene Polymers 0.000 title claims abstract description 126
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 125
- 239000004594 Masterbatch (MB) Substances 0.000 title claims abstract description 57
- 238000002360 preparation method Methods 0.000 title claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 130
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 55
- 239000007822 coupling agent Substances 0.000 claims abstract description 28
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 claims abstract description 27
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 27
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims abstract description 27
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229920003023 plastic Polymers 0.000 claims abstract description 22
- 239000004033 plastic Substances 0.000 claims abstract description 22
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims abstract description 20
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 19
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 19
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 19
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 19
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000008117 stearic acid Substances 0.000 claims abstract description 19
- 239000002270 dispersing agent Substances 0.000 claims abstract description 18
- 239000004595 color masterbatch Substances 0.000 claims abstract description 16
- 238000002156 mixing Methods 0.000 claims description 47
- 238000001816 cooling Methods 0.000 claims description 17
- 238000005299 abrasion Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 13
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 12
- HVLLSGMXQDNUAL-UHFFFAOYSA-N triphenyl phosphite Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)OC1=CC=CC=C1 HVLLSGMXQDNUAL-UHFFFAOYSA-N 0.000 claims description 7
- 229920001903 high density polyethylene Polymers 0.000 claims description 6
- 239000004700 high-density polyethylene Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 5
- 229920001684 low density polyethylene Polymers 0.000 claims description 4
- 239000004702 low-density polyethylene Substances 0.000 claims description 4
- 239000002699 waste material Substances 0.000 claims description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 150000004645 aluminates Chemical class 0.000 claims description 3
- 229910052793 cadmium Inorganic materials 0.000 claims description 3
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 claims description 3
- CJOBVZJTOIVNNF-UHFFFAOYSA-N cadmium sulfide Chemical compound [Cd]=S CJOBVZJTOIVNNF-UHFFFAOYSA-N 0.000 claims description 3
- 239000006229 carbon black Substances 0.000 claims description 3
- 239000001038 titanium pigment Substances 0.000 claims 1
- 230000000052 comparative effect Effects 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 11
- 238000002844 melting Methods 0.000 description 10
- 230000008018 melting Effects 0.000 description 10
- 238000007599 discharging Methods 0.000 description 8
- 239000010865 sewage Substances 0.000 description 8
- 238000001125 extrusion Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000000454 talc Substances 0.000 description 4
- 229910052623 talc Inorganic materials 0.000 description 4
- 235000012222 talc Nutrition 0.000 description 4
- 238000004073 vulcanization Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229920000915 polyvinyl chloride Polymers 0.000 description 3
- 239000004800 polyvinyl chloride Substances 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 229920013716 polyethylene resin Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000012756 surface treatment agent Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 235000010215 titanium dioxide Nutrition 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004705 High-molecular-weight polyethylene Substances 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012876 carrier material Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052500 inorganic mineral 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
- 239000011707 mineral Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 229920011532 unplasticized polyvinyl chloride Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/06—Polyethene
-
- 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
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- 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
- C08K3/34—Silicon-containing compounds
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- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
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- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
-
- 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
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
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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)
- Processes Of Treating Macromolecular Substances (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The application relates to a high-wear-resistance low-friction polyethylene functional master batch, a preparation method and application thereof, wherein the high-wear-resistance low-friction polyethylene functional master batch comprises the following components in parts by weight: main materials: 50 parts of polyethylene crushed material, 10-20 parts of talcum powder, 5-15 parts of calcium carbonate and 10-20 parts of ultra-high molecular weight polyethylene material; auxiliary materials: 1-3 parts of zinc stearate, 2-4 parts of stearic acid, 2-4 parts of a coupling agent, 1-3 parts of a compatilizer, 1-3 parts of a dispersing agent, 0.5-1 part of an antioxidant and 0.5-1 part of a color master batch. The application provides a functional masterbatch can strengthen polyethylene plastic's wearability, improves municipal administration blow off pipe's life for reduce polyethylene plastic's inner wall coefficient of friction, reduce blowdown deposit and scale deposit, improve actual blowdown efficiency.
Description
Technical Field
The application relates to the technical field of high polymer materials, in particular to a high-wear-resistance low-friction polyethylene functional master batch and a preparation method and application thereof.
Background
The sewage pipes on two sides of municipal road, in factories and units and in residential areas mainly comprise cement pipes, PVC (polyvinyl chloride), PE (polyethylene), PPR (polypropylene), UPVC (hard polyvinyl chloride) corrugated pipes, the diameters of which are between 0.05 and 2 meters, and the sewage pipes, living pipes and production pipes are circular pipes. At present, polyethylene sewage pipes are more focused on the improvement of rigidity and toughness.
However, in practical application, impurities, sediment and the like contained in sewage in the pipeline form slurry, so that the inner wall of the pipeline forms scour and abrasion, and the service life of the pipeline is influenced. When the pressure in the pipeline is not large and the flow speed is not large, the pipeline water flow is small, and because the pipeline friction resistance is large, sedimentation is easy to generate in the pipeline, the pipeline is blocked, so that the pipeline cannot be normally used, and the pollution discharge effect is influenced. In addition, the sewage pipes on two sides of the municipal road are difficult to dredge in time, so that sewage overflows, especially in rainy seasons, the sewage pipes on two sides of the municipal road are blocked, the district road surface and the road surface are seriously accumulated, the basement of the residential building is caused to infiltrate, and a piece of water is accumulated on the road surface, so that the personnel and property loss is great.
Therefore, how to solve the problems of low wear resistance and large friction resistance of the existing polyethylene blow-down pipe, enhance the application function of the polyethylene blow-down pipe and have wide application prospect.
Disclosure of Invention
The embodiment of the application provides a high-wear-resistance low-friction polyethylene functional master batch and a preparation method and application thereof, so as to solve the problems of low wear resistance and high friction resistance of polyethylene sewage pipes in related technologies.
The technical scheme provided by the application is as follows:
in a first aspect, the application provides a high-wear-resistance low-friction polyethylene functional master batch, which comprises the following components in parts by weight:
main materials:
50 parts of a polyethylene crushed material,
10-20 parts of talcum powder,
5-15 parts of calcium carbonate,
10-20 parts of ultra-high molecular weight polyethylene material;
auxiliary materials:
1-3 parts of zinc stearate,
2-4 parts of stearic acid,
2-4 parts of a coupling agent,
1-3 parts of a compatilizer,
1-3 parts of dispersing agent,
0.5-1 part of antioxidant,
0.5-1 part of color masterbatch.
In some embodiments, the polyethylene crushed material comprises one or more of waste recycled high density polyethylene and waste recycled low density polyethylene.
In some embodiments, the ultra-high molecular weight polyethylene material has a viscosity average molecular weight of 150-300 ten thousand, a particle size of 3-5mm, and a viscosity of 1200-1600ml/g;
the viscosity average molecular weight of the polyethylene crushed material is 10-20 ten thousand.
In some embodiments, the coupling agent comprises one or more of an aluminate coupling agent, a titanate coupling agent;
and/or the compatibilizer comprises an acrylate compatibilizer.
And/or the dispersant comprises polyethylene wax.
And/or the antioxidant comprises triphenyl phosphite.
In some embodiments, the color concentrate includes one or more of inorganic cadmium red, cadmium yellow, titanium white, carbon black, iron oxide red, iron oxide yellow.
In a second aspect, the present application also provides a method for preparing the high abrasion-resistant low friction polyethylene functional masterbatch as described above, comprising the steps of:
uniformly mixing the main material component and the auxiliary material component to obtain a mixed material;
extruding, cooling and granulating the mixed materials sequentially through an extruder to obtain the high-wear-resistance low-friction polyethylene functional master batch.
In some embodiments, "uniformly mixing the main component and the auxiliary component" includes the following steps:
mixing zinc stearate, stearic acid, a coupling agent, a compatilizer, a dispersing agent, an antioxidant and a color master batch to form an auxiliary material bag;
and (3) mixing polyethylene crushed materials, talcum powder, calcium carbonate, ultra-high molecular weight polyethylene materials and the auxiliary material bags by a closed mixer, wherein the mixing temperature is 200-210 ℃ and the mixing time is 20-30min.
In some embodiments, "uniformly mixing the main component and the auxiliary component" includes the following steps:
mixing zinc stearate, stearic acid, a coupling agent, an antioxidant and a color master batch to form an auxiliary material bag;
premixing talcum powder and calcium carbonate for 3-4min, adding the auxiliary material package, mixing to 100-110 ℃, adding polyethylene crushed material, ultra-high molecular weight polyethylene material, compatilizer and dispersing agent, mixing uniformly, and cooling to 45-55 ℃.
In some embodiments, the extruder barrel temperature is set at 200-220 ℃ and the die temperature is set at 190-200 ℃.
In a third aspect, the present application provides the use of a high abrasion low friction polyethylene functional masterbatch as described above in the preparation of polyethylene plastics.
The beneficial effects that technical scheme that this application provided brought include:
(1) The method has the advantages that a certain amount of ultra-high molecular weight polyethylene is mixed into the common molecular weight polyethylene crushed material, the influence of melting temperature difference is reduced by using a compatilizer and zinc stearate, the melting compatibility of two different molecular weight materials is promoted, the high wear resistance and self-lubricating performance of the 'embedded' ultra-high molecular weight polyethylene in the common low molecular weight polyethylene are realized, so that the wear resistance of a material product is macroscopically improved, the dynamic friction coefficient is reduced, and the friction of the material product is reduced;
(2) The talcum powder and the calcium carbonate have lower price and higher hardness, the wear resistance and the rigidity of the material product are enhanced, the production cost is reduced, the coupling agent is added to serve as a surface treatment agent of the talcum powder and the calcium carbonate, the interfacial binding force between the talcum powder and the organic matter polyethylene material is improved, a stress concentration point is formed, the crystallinity and the crystalline region distribution of the polyethylene resin are changed, and the strength and the toughness of the material product are improved;
(3) The stearic acid is used for carrying out surface activation treatment on talcum powder and calcium carbonate, so that the oil absorption value of inorganic matters is reduced, and the inorganic powder is promoted to be fully and uniformly dispersed in the polyethylene matrix.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present application based on the embodiments herein.
In a first aspect, an embodiment of the present application provides a high wear-resistant low friction polyethylene functional masterbatch, which comprises the following components in parts by weight:
main materials:
50 parts of a polyethylene crushed material,
10-20 parts of talcum powder,
5-15 parts of calcium carbonate,
10-20 parts of ultra-high molecular weight polyethylene material;
auxiliary materials:
1-3 parts of zinc stearate,
2-4 parts of stearic acid,
2-4 parts of a coupling agent,
1-3 parts of a compatilizer,
1-3 parts of dispersing agent,
0.5-1 part of antioxidant,
0.5-1 part of color masterbatch.
According to the method, a certain amount of ultra-high molecular weight polyethylene is mixed into the common molecular weight polyethylene crushed material, the influence of melting temperature difference is reduced by using the compatilizer and zinc stearate, the melting compatibility of two different molecular weight materials is promoted, the high wear resistance and self-lubricating performance of the 'embedded' ultra-high molecular weight polyethylene in the common low molecular weight polyethylene are realized, so that the wear resistance of a material product is macroscopically improved, the dynamic friction coefficient is reduced, and the friction resistance of the material product is reduced;
the talcum powder and the calcium carbonate have lower price and higher hardness, the wear resistance and the rigidity of a material product are enhanced, the production cost is reduced, the coupling agent is added to serve as a surface treatment agent of the talcum powder and the calcium carbonate, the interfacial binding force between the talcum powder and the organic matter polyethylene material is improved, stress concentration points are formed, the crystallinity and the crystalline region distribution of the polyethylene resin are changed, and the grain size is reduced and the grain density is increased along with the increase of the molecular weight, so that the size change of an amorphous region is directly influenced. Under the condition of similar crystallinity, the thickness of the amorphous layer mainly bears external energy absorption and conversion, namely the strength and toughness of the material product are improved by increasing the thickness of the amorphous layer, and meanwhile, the hardness of the inorganic talcum powder and the calcium carbonate is higher, so that the strength and toughness of the material product are improved;
the stearic acid is used for carrying out surface activation treatment on talcum powder and calcium carbonate, so that the oil absorption value of inorganic matters is reduced, and the inorganic powder is promoted to be fully and uniformly dispersed in the polyethylene matrix.
In some embodiments, the polyethylene crushed material comprises one or more of recycled scrap high density polyethylene, recycled scrap low density polyethylene.
By using a clean recycled polyethylene material as the basic carrier material of the functional masterbatch, while having good appearance and coagulability, further, it is preferable that the melt mass flow rate of the polyethylene crushed material is 5 to 10g/10min as an example of the polyethylene crushed material, such as a linear low density polyethylene recycled material.
In some embodiments, the ultra-high molecular weight polyethylene material has a viscosity average molecular weight of 150-300 tens of thousands, a particle size of 3-5mm, and a viscosity of 1200-1600ml/g;
the viscosity average molecular weight of the polyethylene crushed material is 10-20 ten thousand.
Furthermore, the ultra-high molecular weight polyethylene material is preferably clean reclaimed material, so that the economic and environmental benefits of the functional master batch are further improved.
The polyethylene plastic has the advantages that the low molecular weight polyethylene is blended with the high molecular weight polyethylene, so that the wear resistance of the polyethylene plastic is improved and the friction resistance is reduced while the polyethylene plastic has enough rigidity and toughness.
In some embodiments, the talc is non-activated talc, further, the talc is 800-1000 mesh, and has a uniform particle size.
In some embodiments, the calcium carbonate is heavy non-activated calcium carbonate, further, the calcium carbonate is 1000-1200 mesh, and has a uniform particle size;
in some embodiments, the coupling agent comprises one or more of an aluminate coupling agent, a titanate coupling agent;
and/or the compatibilizer comprises an acrylate compatibilizer.
And/or the dispersant comprises polyethylene wax.
And/or the antioxidant comprises triphenyl phosphite.
The coupling agent is used for surface treatment of talcum powder and calcium carbonate, so that the interfacial binding force between the coupling agent and organic polyethylene is improved;
compatibilizers are used to promote melt compatibility of the polyethylene crushed material with the ultra-high molecular weight polyethylene material, as examples of compatibilizers, for example: methyl methacrylate, ACR resin (acrylic monomer emulsified graft), and the like;
the dispersing agent is used for improving the dispersion uniformity of each component, and further, the polyethylene wax is prepared by a cracking method, and the melting point is 100-120 ℃;
the antioxidant is used for improving the weather resistance of the polyethylene material and prolonging the service life;
in some embodiments, the color concentrate includes one or more of inorganic cadmium red, cadmium yellow, titanium white, carbon black, iron oxide red, iron oxide yellow.
In some embodiments, the functional masterbatch may not have zinc stearate added, and the same effect may be achieved by increasing the amount of stearic acid added, for example, a double amount of zinc stearate may be used in place of zinc stearate.
In some embodiments, industrial white oil 20# may also be used in place of stearic acid to achieve the same result.
In a second aspect, the present application also provides a method for preparing the high abrasion-resistant low friction polyethylene functional masterbatch as described above, comprising the steps of:
uniformly mixing the main material component and the auxiliary material component to obtain a mixed material;
extruding, cooling and granulating the mixed materials sequentially through an extruder to obtain the high-wear-resistance low-friction polyethylene functional master batch.
In some embodiments, the cooling means includes, but is not limited to: crawler-type air-cooled cooling, soaking cooling, air-blast drying and the like.
In some embodiments, the means for pelletizing includes, but is not limited to: granulating by a granulator, water-ring granulating, centrifugal drying and the like.
In some embodiments, the operation of "extruder extrusion" includes:
adding the mixed materials into a feed opening of a co-rotating double-screw extruder, and plasticizing and extruding to form the melting brace with the diameter of 3-5 mm.
In some embodiments, "uniformly mixing the main component and the auxiliary component" includes the steps of:
mixing zinc stearate, stearic acid, a coupling agent, a compatilizer, a dispersing agent, an antioxidant and a color master batch to form an auxiliary material bag;
and (3) mixing polyethylene crushed materials, talcum powder, calcium carbonate, ultra-high molecular weight polyethylene materials and the auxiliary material bags by a closed mixer, wherein the mixing temperature is 200-210 ℃ and the mixing time is 20-30min.
In some embodiments, "uniformly mixing the main component and the auxiliary component" includes the steps of:
mixing zinc stearate, stearic acid, a coupling agent, an antioxidant and a color master batch to form an auxiliary material bag;
premixing talcum powder and calcium carbonate for 3-4min, adding the auxiliary material package, mixing to 100-110 ℃, adding polyethylene crushed material, ultra-high molecular weight polyethylene material, compatilizer and dispersing agent, mixing uniformly, and cooling to 45-55 ℃.
In some embodiments, the extruder barrel temperature is set at 200-220 ℃ and the die temperature is set at 190-200 ℃.
The preparation method provided by the application can fully promote the compatibility and the dispersibility among the main materials and improve the product quality.
In a third aspect, the present application provides the use of a high abrasion low friction polyethylene functional masterbatch as described above in the preparation of polyethylene plastics.
The high-wear-resistance low-friction polyethylene functional master batch can be matched with common polyethylene production materials for use, and the prepared polyethylene plastic has good rigidity, toughness, wear resistance and low friction resistance, and the service life and the use effect of the polyethylene blow-down pipe are improved.
The present application is further illustrated by the following specific examples.
The raw material description:
polyethylene crushed material: blending high-density polyethylene and low-density polyethylene to regenerate a clean material, wherein the mass flow rate of a melt is 8-10g/10min;
talc powder: the Liaoning sea-city building town letter-keeping mineral product processing plant A is 800-1000 meshes;
calcium carbonate: hangzhou and nano technology Co.Ltd.1000-1200 mesh natural heavy calcium carbonate;
ultra-high molecular weight polyethylene: regenerated clean material of ultra-high molecular polyethylene with molecular weight of 150-300 ten thousand;
zinc stearate: zhongshan Huaming Tai chemical industry Co., ltd., brand BT2818;
stearic acid: malaysia model 1803;
coupling agent: DL411 of Dongguan Dinghai Plastic Limited;
an antioxidant: triphenyl phosphite TPPi, a company of the chemical industry limited of Zhangjia harbor elegance;
color master batch: chongqing Australian new material stock company T09294 black masterbatch;
polyethylene production material: HDPE high-density polyethylene PE100 grade, medium petroleum grade 7260.
Example 1
The embodiment provides a high-wear-resistance low-friction polyethylene functional master batch and a preparation method and application thereof.
(1) The preparation process of the high-wear-resistance low-friction polyethylene functional master batch comprises the following steps:
101: mixing 1.5 parts of zinc stearate, 2 parts of stearic acid, 2 parts of coupling agent, 0.5 part of antioxidant and 0.5 part of color master batch to form an auxiliary material bag;
102: adding 15 parts of talcum powder and 10 parts of calcium carbonate into a high-speed mixer for premixing for 3min, adding an auxiliary material bag, continuously mixing at a high speed until the high mixing temperature is 110 ℃, discharging into a low-speed mixer, adding 50 parts of polyethylene crushed materials, 15 parts of ultra-high molecular weight polyethylene materials, 1.5 parts of compatilizer and 2 parts of dispersing agent, cooling to 55 ℃ for discharging;
103: adding the mixed materials into a feed opening of a homodromous double-screw extruder, and performing plasticizing extrusion to form a melting brace with the diameter of 3-5mm, wherein the temperature of a machine barrel of the homodromous double-screw extruder is set to be 200-220 ℃, and the temperature of a die is set to be 190-200 ℃;
104: granulating the extruded material by a crawler-type air-cooling and granulating machine to obtain the high-wear-resistance low-friction polyethylene functional master batch.
(2) The application of the high-wear-resistance low-friction polyethylene functional master batch comprises the following steps:
and (3) blending the high-wear-resistance low-friction polyethylene functional master batch prepared in the step (104) with polyethylene production materials according to the mass ratio of 1:1 to 1:3 respectively, and performing sample preparation by a vulcanization tabletting machine to obtain polyethylene plastics, wherein the tabletting process is that the polyethylene plastics are preheated at 180 ℃ for 3min, preheated at 200 ℃ for 15min and then subjected to low pressure at 190 ℃ for 10min.
Example 2
The embodiment provides a high-wear-resistance low-friction polyethylene functional master batch and a preparation method and application thereof.
(1) The preparation process of the high-wear-resistance low-friction polyethylene functional master batch comprises the following steps:
101: mixing 1.5 parts of zinc stearate, 2 parts of stearic acid, 2 parts of coupling agent, 0.5 part of antioxidant and 0.5 part of color master batch to form an auxiliary material bag;
102: adding 10 parts of talcum powder and 15 parts of calcium carbonate into a high-speed mixer for premixing for 3min, adding an auxiliary material bag, continuously mixing at a high speed until the high mixing temperature is 110 ℃, discharging into a low-speed mixer, adding 50 parts of polyethylene crushed materials, 15 parts of ultra-high molecular weight polyethylene materials, 1.5 parts of compatilizer and 2 parts of dispersing agent, cooling to 55 ℃ for discharging;
103: adding the mixed materials into a feed opening of a homodromous double-screw extruder, and performing plasticizing extrusion to form a melting brace with the diameter of 3-5mm, wherein the temperature of a machine barrel of the homodromous double-screw extruder is set to be 200-220 ℃, and the temperature of a die is set to be 190-200 ℃;
104: granulating the extruded material by a crawler-type air-cooling and granulating machine to obtain the high-wear-resistance low-friction polyethylene functional master batch.
(2) The application of the high-wear-resistance low-friction polyethylene functional master batch comprises the following steps:
and (3) blending the high-wear-resistance low-friction polyethylene functional master batch prepared in the step (104) with polyethylene production materials according to the mass ratio of 1:1 to 1:3 respectively, and performing sample preparation by a vulcanization tabletting machine to obtain polyethylene plastics, wherein the tabletting process is that the polyethylene plastics are preheated at 180 ℃ for 3min, preheated at 200 ℃ for 15min and then subjected to low pressure at 190 ℃ for 10min.
Example 3
The embodiment provides a high-wear-resistance low-friction polyethylene functional master batch and a preparation method and application thereof.
(1) The preparation process of the high-wear-resistance low-friction polyethylene functional master batch comprises the following steps:
101: mixing 1 part of zinc stearate, 2 parts of stearic acid, 2.5 parts of coupling agent, 0.5 part of antioxidant and 0.5 part of color master batch to form an auxiliary material bag;
102: adding 15 parts of talcum powder and 15 parts of calcium carbonate into a high-speed mixer for premixing for 3min, adding an auxiliary material bag, continuously mixing at a high speed until the high mixing temperature is 110 ℃, discharging into a low-speed mixer, adding 50 parts of polyethylene crushed materials, 10 parts of ultra-high molecular weight polyethylene materials, 1 part of compatilizer and 2.5 parts of dispersing agent, cooling to 55 ℃ for discharging;
103: adding the mixed materials into a feed opening of a homodromous double-screw extruder, and performing plasticizing extrusion to form a melting brace with the diameter of 3-5mm, wherein the temperature of a machine barrel of the homodromous double-screw extruder is set to be 200-220 ℃, and the temperature of a die is set to be 190-200 ℃;
104: granulating the extruded material by a crawler-type air-cooling and granulating machine to obtain the high-wear-resistance low-friction polyethylene functional master batch.
(2) The application of the high-wear-resistance low-friction polyethylene functional master batch comprises the following steps:
and (3) blending the high-wear-resistance low-friction polyethylene functional master batch prepared in the step (104) with polyethylene production materials according to the mass ratio of 1:1 to 1:3 respectively, and performing sample preparation by a vulcanization tabletting machine to obtain polyethylene plastics, wherein the tabletting process is that the polyethylene plastics are preheated at 180 ℃ for 3min, preheated at 200 ℃ for 15min and then subjected to low pressure at 190 ℃ for 10min.
Example 4
The embodiment provides a high-wear-resistance low-friction polyethylene functional master batch and a preparation method and application thereof.
(1) The preparation process of the high-wear-resistance low-friction polyethylene functional master batch comprises the following steps:
101: mixing 2.5 parts of zinc stearate, 1 part of stearic acid, 3 parts of coupling agent, 0.5 part of antioxidant and 0.5 part of color master batch to form an auxiliary material bag;
102: adding 10 parts of talcum powder and 10 parts of calcium carbonate into a high-speed mixer for premixing for 3min, adding an auxiliary material bag, continuously mixing at a high speed until the high mixing temperature is 110 ℃, discharging into a low-speed mixer, adding 50 parts of polyethylene crushed materials, 20 parts of ultra-high molecular weight polyethylene materials, 1 part of compatilizer and 1.5 parts of dispersing agent, cooling to 55 ℃ for discharging;
103: adding the mixed materials into a feed opening of a homodromous double-screw extruder, and performing plasticizing extrusion to form a melting brace with the diameter of 3-5mm, wherein the temperature of a machine barrel of the homodromous double-screw extruder is set to be 200-220 ℃, and the temperature of a die is set to be 190-200 ℃;
104: granulating the extruded material by a crawler-type air-cooling and granulating machine to obtain the high-wear-resistance low-friction polyethylene functional master batch.
(2) The application of the high-wear-resistance low-friction polyethylene functional master batch comprises the following steps:
and (3) blending the high-wear-resistance low-friction polyethylene functional master batch prepared in the step (104) with polyethylene production materials according to the mass ratio of 1:1 to 1:3 respectively, and performing sample preparation by a vulcanization tabletting machine to obtain polyethylene plastics, wherein the tabletting process is that the polyethylene plastics are preheated at 180 ℃ for 3min, preheated at 200 ℃ for 15min and then subjected to low pressure at 190 ℃ for 10min.
Comparative example 1
The comparative example provides a polyethylene functional master batch, and a preparation method and application thereof.
It includes most of the operating steps of example 1, except that:
no talc is added.
Comparative example 2
The comparative example provides a polyethylene functional master batch, and a preparation method and application thereof.
It includes most of the operations of example 1, except that:
no calcium carbonate was added.
Comparative example 3
The comparative example provides a polyethylene functional master batch, and a preparation method and application thereof.
It includes most of the operations of example 1, except that:
no ultra-high molecular weight polyethylene material is added.
Table 1: the polyethylene functional masterbatch formulation of each of the examples and comparative examples was formulated as a component. (Unit: portion)
Note that: "S" in tables 1 and 2 represents "example", for example: s1 refers to example 1; "D" represents "comparative example", for example: d1 refers to comparative example 1.
Performance testing
The polyethylene plastics prepared in each of examples 1 to 4 and comparative examples 1 to 3 were subjected to the following performance tests:
wear rate: reference SH/T1818-2017;
coefficient of dynamic friction: GB10006-88 specifies that the results are filled in Table 2.
TABLE 2
In table 2, the smaller the abrasion rate is, the better the abrasion resistance is, the smaller the dynamic friction coefficient is, and the smaller the friction resistance is, and the data of the examples 1-4 and the blank group are combined, so that compared with the existing common polyethylene production materials, the abrasion rate of the polyethylene plastic added with the functional master batch provided by the application is reduced from 0.646% to below 0.5%, and the dynamic friction coefficient is reduced from 0.545 to below 0.4, which indicates that the functional master batch provided by the application can effectively improve the abrasion resistance and reduce the friction resistance of the polyethylene plastic;
by combining the test results of the example 1, the comparative example 3 and the blank, the comparative example 3 is compared with the example 1, the abrasion rate is more than 0.6 percent, the dynamic friction coefficient is more than 0.5, the performance difference from the common production materials is not large, and the abrasion rate can be reduced to be less than 0.5 percent by adding a certain amount of the ultra-high molecular weight polyethylene material in the example 1, the dynamic friction coefficient is reduced to be less than 0.4, so that the abrasion resistance of polyethylene plastic can be effectively improved and the friction resistance can be reduced by adding the ultra-high molecular weight polyethylene material.
The foregoing is merely a specific embodiment of the application to enable one skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The high-wear-resistance low-friction polyethylene functional master batch is characterized by comprising the following components in parts by weight:
main materials:
50 parts of a polyethylene crushed material,
10-20 parts of talcum powder,
5-15 parts of calcium carbonate,
10-20 parts of ultra-high molecular weight polyethylene material;
auxiliary materials:
1-3 parts of zinc stearate,
2-4 parts of stearic acid,
2-4 parts of a coupling agent,
1-3 parts of a compatilizer,
1-3 parts of dispersing agent,
0.5-1 part of antioxidant,
0.5-1 part of color masterbatch.
2. The high wear resistance low friction polyethylene functional masterbatch of claim 1 wherein the polyethylene crushed material comprises one or more of a waste recycled high density polyethylene and a waste recycled low density polyethylene.
3. The high abrasion-resistant low friction polyethylene functional masterbatch according to claim 1, characterized in that the ultra-high molecular weight polyethylene material has a viscosity average molecular weight of 150-300 ten thousand, a particle size of 3-5mm and a viscosity number of 1200-1600ml/g;
the viscosity average molecular weight of the polyethylene crushed material is 10-20 ten thousand.
4. The high wear resistance low friction polyethylene functional masterbatch according to claim 1, wherein the coupling agent comprises one or more of aluminate coupling agents, titanate coupling agents;
and/or the compatibilizer comprises an acrylate compatibilizer.
And/or the dispersant comprises polyethylene wax.
And/or the antioxidant comprises triphenyl phosphite.
5. The high wear resistance low friction polyethylene functional masterbatch according to claim 1, wherein said color masterbatch comprises one or more of inorganic cadmium red, cadmium yellow, titanium pigment, carbon black, iron oxide red, iron oxide yellow.
6. The method for preparing the high-wear-resistance low-friction polyethylene functional master batch according to any one of claims 1 to 5, comprising the following steps:
uniformly mixing the main material component and the auxiliary material component to obtain a mixed material;
extruding, cooling and granulating the mixed materials sequentially through an extruder to obtain the high-wear-resistance low-friction polyethylene functional master batch.
7. The method for preparing the high-wear-resistance low-friction polyethylene functional master batch according to claim 6, wherein the step of uniformly mixing the main material component and the auxiliary material component comprises the following steps:
mixing zinc stearate, stearic acid, a coupling agent, a compatilizer, a dispersing agent, an antioxidant and a color master batch to form an auxiliary material bag;
and (3) mixing polyethylene crushed materials, talcum powder, calcium carbonate, ultra-high molecular weight polyethylene materials and the auxiliary material bags by a closed mixer, wherein the mixing temperature is 200-210 ℃ and the mixing time is 20-30min.
8. The method for preparing the high-wear-resistance low-friction polyethylene functional master batch according to claim 6, wherein the step of uniformly mixing the main material component and the auxiliary material component comprises the following steps:
mixing zinc stearate, stearic acid, a coupling agent, an antioxidant and a color master batch to form an auxiliary material bag;
premixing talcum powder and calcium carbonate for 3-4min, adding the auxiliary material package, mixing to 100-110 ℃, adding polyethylene crushed material, ultra-high molecular weight polyethylene material, compatilizer and dispersing agent, mixing uniformly, and cooling to 45-55 ℃.
9. The method for preparing a high abrasion-resistant low friction polyethylene functional masterbatch according to claim 6, characterized in that the extruder barrel temperature is set to 200-220 ℃ and the die temperature is set to 190-200 ℃.
10. Use of the high abrasion resistance low friction polyethylene functional masterbatch according to any one of claims 1-5 for the preparation of polyethylene plastics.
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