CN102382344A - Composition for preparing polyethylene pipe with superhigh molecular weight and preparation method thereof - Google Patents
Composition for preparing polyethylene pipe with superhigh molecular weight and preparation method thereof Download PDFInfo
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- CN102382344A CN102382344A CN2010102691383A CN201010269138A CN102382344A CN 102382344 A CN102382344 A CN 102382344A CN 2010102691383 A CN2010102691383 A CN 2010102691383A CN 201010269138 A CN201010269138 A CN 201010269138A CN 102382344 A CN102382344 A CN 102382344A
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- polyethylene
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- -1 polyethylene Polymers 0.000 title claims abstract description 36
- 239000000203 mixture Substances 0.000 title claims abstract description 30
- 239000004698 Polyethylene Substances 0.000 title claims abstract description 26
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title abstract description 6
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 26
- 229920002313 fluoropolymer Polymers 0.000 claims abstract description 23
- 239000004811 fluoropolymer Substances 0.000 claims abstract description 23
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 22
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims abstract description 20
- 235000013539 calcium stearate Nutrition 0.000 claims abstract description 20
- 239000008116 calcium stearate Substances 0.000 claims abstract description 20
- 239000006229 carbon black Substances 0.000 claims abstract description 18
- 238000001125 extrusion Methods 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 230000003647 oxidation Effects 0.000 claims abstract description 5
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 5
- 230000006698 induction Effects 0.000 claims abstract description 4
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 claims description 43
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims description 43
- 239000006057 Non-nutritive feed additive Substances 0.000 claims description 20
- 239000002131 composite material Substances 0.000 claims description 18
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical compound FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 claims description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 2
- 229920001577 copolymer Polymers 0.000 claims description 2
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 7
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 239000003795 chemical substances by application Substances 0.000 abstract description 3
- 238000004806 packaging method and process Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract description 2
- 230000003712 anti-aging effect Effects 0.000 abstract 2
- 229920013716 polyethylene resin Polymers 0.000 abstract 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 10
- 230000032683 aging Effects 0.000 description 6
- 229920003023 plastic Polymers 0.000 description 6
- 239000004033 plastic Substances 0.000 description 6
- 229920001903 high density polyethylene Polymers 0.000 description 4
- 239000004700 high-density polyethylene Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229920000106 Liquid crystal polymer Polymers 0.000 description 3
- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229920010741 Ultra High Molecular Weight Polyethylene (UHMWPE) Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 230000006353 environmental stress Effects 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- 239000012748 slip agent Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Compositions Of Macromolecular Compounds (AREA)
Abstract
A composition for preparing polyethylene pipe with superhigh molecular weight and a preparation method thereof are disclosed. The composition is prepared by the following raw materials by weight percentage: polyethylene with superhigh molecular weight: fluoropolymer processing agent: polyethylene wax: calcium stearate/zinc stearate compound: complex antioxidant: carbon black is equal to 100 parts: 0.01-0.1: 1-8:0.1-1.0:0.1-0.5:0.5-3. The preparation method comprises the steps of: putting the polyethylene resin with superhigh molecular weight, starting a mixer, putting the calcium stearate/zinc stearate compound into the mixer to mix for 1-2 hours, then adding the complex antioxidant, polyethylene wax, fluoropolymer processing agent and carbon black to mix for 2-3 hours; and detecting the bulk density according to GB/T1636 and sealing and packaging. The polyethylene pipe composition with superhigh molecular weight prepared by the method has excellent heat-resisting and anti-aging performance with oxidation induction time at 200 DEGC longer than 30 minutes. The polyethylene pipe composition with superhigh molecular weight further has excellent mechanical, wear-resisting, corrosion resisting, heat-resisting and anti-aging properties and extrusion process performance.
Description
Technical Field
The invention belongs to the technical field of plastic processing, and particularly relates to a composition for preparing an ultrahigh molecular weight polyethylene pipe and a preparation method thereof.
Background
Ultra-high molecular weight Polyethylene (UHMWPE) generally refers to Polyethylene (PE) having a relative molecular mass of over 150 ten thousand, while the relative molecular mass of ordinary PE is generally only 2-30 ten thousand, the relative molecular mass of domestic UHMWPE can reach 400-500 ten thousand, and the relative molecular mass of UHMWPE produced in germany can reach 1000 ten thousand.
The extremely high relative molecular mass of UHMWPE gives it extremely excellent properties:
the high-density polyethylene (HDPE) has excellent environmental stress cracking resistance which is 200 times that of common high-density polyethylene (HDPE) and 5-10 times that of common plastics;
secondly, the wear resistance is very strong, and the wear resistance is in the first place of plastic, 5-7 times that of common plastic and 7-10 times that of steel pipes;
high impact resistance, the impact strength is highest in the existing plastics, and the high impact strength is still kept even at the temperature of 70 ℃ below zero;
excellent self-lubricating performance, which is equivalent to Polytetrafluoroethylene (PTFE);
excellent chemical stability, electric insulation, fatigue resistance and weather resistance;
sixthly, the paint is non-toxic, does not absorb water, has small density, does not adhere, is antistatic, absorbs noise, is easy to machine and can be colored.
UHMWPE is the existing high-quality engineering plastic, and compared with other plastic pipes and metal pipes, the pipe made of the UHMWPE has obvious advantages in many aspects.
Although UHMWPE has the above-mentioned excellent properties, it has very high melt viscosity (up to 1 × 108Pa · s), very poor flowability, very low critical shear rate, and very high tendency to melt fracture during processing, and is difficult to process using conventional plastic molding equipment and processes. In order to extrude UHMWPE pipes using conventional extrusion equipment, it is necessary to modify the UHMWPE pipe by various means to improve its flowability, or to modify the forming equipment, or to use new forming processing techniques.
Chinese patents CN101134827 and CN1807062 adopt liquid crystal polymer to modify UHMWPE, the liquid crystal polymer has excellent mechanical property, wear resistance and fluidity, the liquid crystal polymer and the UHMWPE are compounded, the processing property of the UHMWPE can be obviously improved, and the mechanical property and the wear resistance can be improved, the defects are that the processing temperature is up to 250-300 ℃, the energy consumption is higher, and the heat-oxygen aging resistance is not mentioned in the patent, and the heat-oxygen aging resistance is also an important index for UHMWPE pipes, and the service life of the pipes is influenced.
Chinese patent CN1428370 mixes 85-95% of ultra-high molecular weight polyethylene, 3-15% of polysiloxane and 0.2-2% of antioxidant, uniformly stirs them, dries them for 5-7 hours at 40-60 deg.C in a vacuum drying oven, extrudes the dried raw material for granulation, the fluidity of the mixture is greatly improved because of adding organosilicon as modifier, the prepared UHMWPE pipe has excellent wear resistance, corrosion resistance and low temperature resistance, but the patent granulates the special material, the cost is higher, and the patent does not mention the thermal oxidation resistance and aging resistance.
Disclosure of Invention
The invention aims to provide an ultra-high molecular weight polyethylene pipe composition, which is modified by adopting a fluorine elastomer and mixed with a specific antioxidant system compared with the existing compositions, so that the composition has excellent mechanical property, wear resistance, corrosion resistance, thermal-oxidative aging resistance and extrusion processability.
The invention also aims to provide a method for preparing the composition, which can ensure that all components are uniformly mixed, the bulk density of the prepared composition is high, and the extrusion processing efficiency can be improved.
The invention is implemented by the following technical scheme:
the composition for preparing the ultra-high molecular weight polyethylene pipe is prepared by processing the following raw materials in percentage by mass:
the ultra-high molecular weight polyethylene, the fluoropolymer processing aid, the polyethylene wax, the calcium stearate/zinc stearate compound, the composite antioxidant and the carbon black are 100 parts, 0.01-0.1: 1-8: 0.1-1.0: 0.1-0.5: 0.5-3
Wherein,
the viscosity average molecular weight range of the ultra-high molecular weight polyethylene is set to be 150 multiplied by 104～400×104；
The fluoropolymer processing aid is a fluorinated copolymer of vinylidene fluoride;
the mass ratio of the calcium stearate/zinc stearate compound is set to be 1-3: 1;
the composite antioxidant is a mixture of hindered phenol antioxidants A and phosphite antioxidants B, and the mass ratio of A to B is 1: 1-3;
the properties of the ultra-high molecular weight polyethylene composition are as follows: black powder mixed material with high bulk density (not less than 0.48 g/cm)3) The extrusion processing efficiency can be improved (the extrusion speed can be more than or equal to 3 m/h);
tensile breaking stress of 26-29 MPa; tensile breaking strain,%, 260-340; impact Strength of simply-supported Beam, kJ/m2No fracture; tensile yield strength, MPa, 23-26; an oxidation induction period of 35-68 min; the wear rate,%, is 0.05-0.50; the extrusion performance is 159mm, m/h, 3.
The composition, wherein the viscosity average molecular weight of the ultrahigh molecular weight polyethylene is set to 200X 104～300×104。
The composition is prepared by processing the following raw materials in percentage by mass:
the ultra-high molecular weight polyethylene, the fluoropolymer processing aid, the polyethylene wax, the calcium stearate/zinc stearate compound, the composite antioxidant and the carbon black are 100 parts, 0.03-0.08: 3-5: 0.1-1.0: 0.1-0.5: 0.5-3.
The preparation method of the composition is characterized by putting the ultra-high molecular weight polyethylene resin into a cone-shaped mixer with a proper volume, starting the mixer, firstly putting the calcium stearate and zinc stearate compound into the mixer to mix for 1-2 hours, then sequentially adding the composite antioxidant, the polyethylene wax, the fluoropolymer processing aid and the carbon black, mixing for 2-3 hours, detecting the bulk density according to GB/T1636, wherein the bulk density is generally more than 0.45g/cm3And (6) sealing and packaging.
ADVANTAGEOUS EFFECTS OF INVENTION
The ultra-high molecular weight polyethylene pipe composition prepared by the method has excellent thermal-oxidative aging resistance, the oxidation induction period at 200 ℃ is more than 30 minutes, and the ultra-high molecular weight polyethylene pipe composition has excellent mechanical property, wear resistance, corrosion resistance, thermal-oxidative aging resistance and extrusion processability.
Detailed Description
Example 1 (the proportions are in parts by mass, the same applies hereinafter)
Ultra-high molecular weight polyethylene (viscosity average molecular weight 120X 10)4) 100
Polyethylene wax 2
Calcium stearate 0.2
Zinc stearate 0.5
Composite antioxidant 0.1
(fluoropolymer processing aid FX-59200.1)
Carbon Black 2
The desired materials are commercially available as raw materials, wherein one of the fluoropolymer processing aids FX-5920, a series of fluoropolymer processing aids PPA from 3M (e.g., FX-5911, 5920, 5924), is also known in some fields as "rheology agent", "brightener", "slip agent", etc. a class of fluoropolymer-based additives developed by 3M, is known to help improve polymer processability.
The following examples are given in the same way.
Example 2
Ultra-high molecular weight polyethylene (viscosity average molecular weight 185X 10)4) 100
Polyethylene wax 3
Calcium stearate 0.3
Zinc stearate 0.1
0.2 part of composite antioxidant
Fluoropolymer processing aid FX-59200.08
Carbon Black 1.5
Example 3
Ultra-high molecular weight polyethylene (viscosity average molecular weight 202X 10)4) 100
Polyethylene wax 4
Calcium stearate 0.2
Zinc stearate 0.5
0.3 part of composite antioxidant
Fluoropolymer processing aid FX-59200.06
Carbon Black 1.2
Example 4
Ultra-high molecular weight polyethylene (viscosity average molecular weight 237X 10)4) 100
Polyethylene wax 5
Calcium stearate 0.5
Zinc stearate 0.1
0.3 part of composite antioxidant
Fluoropolymer processing aid FX-59200.02
Carbon Black 1
Example 5
Ultra-high molecular weight polyethylene (viscosity average molecular weight 256X 10)4) 100
Polyethylene wax 8
Calcium stearate 0.2
Zinc stearate 0.1
0.3 part of composite antioxidant
Fluoropolymer processing aid FX-59200.01
Carbon Black 0.8
Example 6
Ultra-high molecular weight polyethylene (viscosity average molecular weight 278X 10)4) 100
Polyethylene wax 7
Calcium stearate 0.1
Zinc stearate 0.3
Composite antioxidant 0.4
Fluoropolymer processing aid FX-59200.01
Carbon Black 0.5
Example 7
Ultra-high molecular weight polyethylene (viscosity average molecular weight 295X 10)4) 100
Polyethylene wax 4
Calcium stearate 0.3
Zinc stearate 0.2
0.25% of composite antioxidant
Fluoropolymer processing aid FX-59200.03
Carbon Black 1
Example 8
Ultra-high molecular weight polyethylene (viscosity average molecular weight 323X 10)4) 100
Polyethylene wax 7
Calcium stearate 0.2
Zinc stearate 0.1
0.3 part of composite antioxidant
Fluoropolymer processing aid FX-59200.01
Carbon Black 0.8
Example 9
Ultra-high molecular weight polyethylene (viscosity average molecular weight 358X 10)4) 100
Polyethylene wax 5
Calcium stearate 0.3
Zinc stearate 0.4
Composite antioxidant 0.4
Fluoropolymer processing aid FX-59200.03
Carbon Black 0.5
Example 10
Ultra-high molecular weight polyethylene (viscosity average molecular weight 376X 10)4) 100
Polyethylene wax 1
Calcium stearate 0.4
Zinc stearate 0.4
Composite antioxidant 0.4
Fluoropolymer processing aid FX-59200.1
Carbon Black 1
The tube materials were prepared according to the combination of the above examples and the test data are shown in Table 1
Claims (4)
1. The composition for preparing the ultra-high molecular weight polyethylene pipe is prepared by processing the following raw materials in percentage by mass:
the ultra-high molecular weight polyethylene, the fluoropolymer processing aid, the polyethylene wax, the calcium stearate/zinc stearate compound, the composite antioxidant and the carbon black are 100 parts, 0.01-0.1: 1-8: 0.1-1.0: 0.1-0.5: 0.5-3
Wherein,
the viscosity average molecular weight range of the ultra-high molecular weight polyethylene is set to be 150 multiplied by 104～400×104；
The fluoropolymer processing aid is a fluorinated copolymer of vinylidene fluoride;
the mass ratio of the calcium stearate/zinc stearate compound is set to be 1-3: 1;
the composite antioxidant is a mixture of hindered phenol antioxidants A and phosphite antioxidants B, and the mass ratio of A to B is 1: 1-3;
the properties of the ultra-high molecular weight polyethylene composition are as follows:
black powdery mixture with bulk density higher than or equal to 0.48g/cm3The extrusion speed is more than or equal to 3 m/h;
tensile breaking stress of 26-29 MPa; tensile breaking strain,%, 260-340; impact Strength of simply-supported Beam, kJ/m2No fracture; tensile yield strength, MPa, 23-26; an oxidation induction period of 35-68 min; the wear rate,%, is 0.05-0.50; the extrusion performance is 159mm, m/h, 3.
2. The composition according to claim 1, wherein the viscosity average molecular weight range of said ultra-high molecular weight polyethylene is set to 200X 104～300×104。
3. The composition according to claim 1, which is prepared by processing the following raw materials in percentage by mass:
the ultra-high molecular weight polyethylene, the fluoropolymer processing aid, the polyethylene wax, the calcium stearate/zinc stearate compound, the composite antioxidant and the carbon black are 100 parts, 0.03-0.08: 3-5: 0.1-1.0: 0.1-0.5: 0.5-3.
4. A process for preparing the composition as claimed in claim 1, 2 or 3, wherein the ultra-high molecular weight polyethylene resin is put into a cone mixer with a suitable volume, the mixer is started, the calcium stearate and zinc stearate compound is put into the mixer and mixed for 1-2 hours, then the composite antioxidant, polyethylene wax, fluoropolymer processing aid and carbon black are added in turn, the mixture is mixed for 2-3 hours, the bulk density is detected according to GB/T1636, and the mixture is sealed and packaged.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010269138 CN102382344B (en) | 2010-09-01 | 2010-09-01 | Composition for preparing polyethylene pipe with superhigh molecular weight and preparation method thereof |
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|---|---|---|---|
| CN 201010269138 CN102382344B (en) | 2010-09-01 | 2010-09-01 | Composition for preparing polyethylene pipe with superhigh molecular weight and preparation method thereof |
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| CN102382344A true CN102382344A (en) | 2012-03-21 |
| CN102382344B CN102382344B (en) | 2013-04-24 |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103789860A (en) * | 2012-10-30 | 2014-05-14 | 中国石油化工股份有限公司 | High molecular weight polyethylene fiber, preparation method and application thereof |
| CN103788445A (en) * | 2012-10-30 | 2014-05-14 | 中国石油化工股份有限公司 | High-molecular weight polyethylene composition |
| CN104031305A (en) * | 2014-05-08 | 2014-09-10 | 上海化工研究院 | Material special for ultrahigh-molecular-weight polyethylene tube, and preparation and application thereof |
| CN104262677A (en) * | 2014-10-18 | 2015-01-07 | 江苏爱特恩东台新材料科技有限公司 | Preparation and application of complex antioxidant |
| CN105801986A (en) * | 2016-05-05 | 2016-07-27 | 日丰科技有限公司 | Processing aid master batch for PE-RT pipe and preparation method for processing aid master batch |
| CN106750724A (en) * | 2016-07-21 | 2017-05-31 | 佛山瑞箭体育器材有限公司 | A kind of composition for preparing ultrahigh molecular weight polyethylene tubing |
| CN107266832A (en) * | 2017-06-23 | 2017-10-20 | 山西华星管业科技有限公司 | Produce the modified additive and tubing of ultrahigh molecular weight polyethylene tubing |
| CN107312222A (en) * | 2017-06-14 | 2017-11-03 | 山西华星管业科技有限公司 | Produce the modified additive and tubing of ultrahigh molecular weight polyethylene tubing |
| CN108239320A (en) * | 2016-12-27 | 2018-07-03 | 上海邦中高分子材料有限公司 | A kind of abrasion-proof pipe material and preparation method thereof |
| CN109181065A (en) * | 2018-08-19 | 2019-01-11 | 福建师范大学泉港石化研究院 | A kind of composition being used to prepare UHMWPE/HDPE tubing |
| CN109608754A (en) * | 2018-12-25 | 2019-04-12 | 山东东宏管业股份有限公司 | A kind of high abrasion polyolefin pipe PP Pipe Compound and preparation method thereof |
| CN110698747A (en) * | 2019-10-10 | 2020-01-17 | 扬中市长龙管业有限公司 | Creep-resistant impact-resistant PE pipe and production method thereof |
| CN113337026A (en) * | 2021-06-25 | 2021-09-03 | 广西顺通高分子材料科技有限公司 | Preparation process of corrosion-resistant PE drain pipe |
| CN115703904A (en) * | 2021-08-09 | 2023-02-17 | 中国石油化工股份有限公司 | High-heat-resistance polyethylene pipe composition and preparation method thereof |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103788445A (en) * | 2012-10-30 | 2014-05-14 | 中国石油化工股份有限公司 | High-molecular weight polyethylene composition |
| CN103788445B (en) * | 2012-10-30 | 2016-02-24 | 中国石油化工股份有限公司 | A kind of High molecular weight polyethylene composition |
| CN103789860A (en) * | 2012-10-30 | 2014-05-14 | 中国石油化工股份有限公司 | High molecular weight polyethylene fiber, preparation method and application thereof |
| CN104031305A (en) * | 2014-05-08 | 2014-09-10 | 上海化工研究院 | Material special for ultrahigh-molecular-weight polyethylene tube, and preparation and application thereof |
| CN104031305B (en) * | 2014-05-08 | 2017-09-12 | 上海化工研究院有限公司 | The PP Pipe Compound of ultrahigh molecular weight polyethylene tubing and its preparation and application |
| CN104262677A (en) * | 2014-10-18 | 2015-01-07 | 江苏爱特恩东台新材料科技有限公司 | Preparation and application of complex antioxidant |
| CN105801986A (en) * | 2016-05-05 | 2016-07-27 | 日丰科技有限公司 | Processing aid master batch for PE-RT pipe and preparation method for processing aid master batch |
| CN106750724A (en) * | 2016-07-21 | 2017-05-31 | 佛山瑞箭体育器材有限公司 | A kind of composition for preparing ultrahigh molecular weight polyethylene tubing |
| CN108239320A (en) * | 2016-12-27 | 2018-07-03 | 上海邦中高分子材料有限公司 | A kind of abrasion-proof pipe material and preparation method thereof |
| CN107312222A (en) * | 2017-06-14 | 2017-11-03 | 山西华星管业科技有限公司 | Produce the modified additive and tubing of ultrahigh molecular weight polyethylene tubing |
| CN107266832A (en) * | 2017-06-23 | 2017-10-20 | 山西华星管业科技有限公司 | Produce the modified additive and tubing of ultrahigh molecular weight polyethylene tubing |
| CN109181065A (en) * | 2018-08-19 | 2019-01-11 | 福建师范大学泉港石化研究院 | A kind of composition being used to prepare UHMWPE/HDPE tubing |
| CN109608754A (en) * | 2018-12-25 | 2019-04-12 | 山东东宏管业股份有限公司 | A kind of high abrasion polyolefin pipe PP Pipe Compound and preparation method thereof |
| CN109608754B (en) * | 2018-12-25 | 2022-05-17 | 山东东宏管业股份有限公司 | Special material for high-wear-resistance polyolefin pipeline and preparation method thereof |
| CN110698747A (en) * | 2019-10-10 | 2020-01-17 | 扬中市长龙管业有限公司 | Creep-resistant impact-resistant PE pipe and production method thereof |
| CN110698747B (en) * | 2019-10-10 | 2021-12-31 | 扬中市长龙管业有限公司 | Creep-resistant impact-resistant PE pipe and production method thereof |
| CN113337026A (en) * | 2021-06-25 | 2021-09-03 | 广西顺通高分子材料科技有限公司 | Preparation process of corrosion-resistant PE drain pipe |
| CN115703904A (en) * | 2021-08-09 | 2023-02-17 | 中国石油化工股份有限公司 | High-heat-resistance polyethylene pipe composition and preparation method thereof |
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| CN102382344B (en) | 2013-04-24 |
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