CN105199204A - Ultra-high molecular weight polyethylene lining pipe - Google Patents
Ultra-high molecular weight polyethylene lining pipe Download PDFInfo
- Publication number
- CN105199204A CN105199204A CN201510688121.4A CN201510688121A CN105199204A CN 105199204 A CN105199204 A CN 105199204A CN 201510688121 A CN201510688121 A CN 201510688121A CN 105199204 A CN105199204 A CN 105199204A
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- CN
- China
- Prior art keywords
- molecular weight
- weight polyethylene
- lining pipe
- uhmwpe
- internal lining
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/068—Ultra high molecular weight polyethylene
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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)
- Compositions Of Macromolecular Compounds (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses an ultra-high molecular weight polyethylene lining pipe. Raw materials including ultra-high molecular weight polyethylene, polypropylene, dicumyl peroxide, allyl siloxane and fillers are proportioned according to formula requirements, the raw materials are crushed and mixed by a mixing type particle crusher, then the grain size of powder materials is determined through a vibrating screen, and finally the proportioned raw materials are extruded to form the lining pipe through a plastic material extruding machine. By adding the dicumyl peroxide, the polypropylene and the allyl siloxane, the raw materials can be better decomposed under heating during injection molding, the flowability of plastic injection can be improved and the impact strength can be improved; by adding needle-shaped siliceous lime, the thermal deformation temperature can be improved; thereby through the combination of the raw materials, the effects of corrosion resistance, wear resistance and high temperature resistance are realized.
Description
Technical field
The present invention relates to a kind of internal lining pipe, be specifically related to a kind of ultrahigh molecular weight polyethylene(UHMWPE) internal lining pipe.
Background technology
At present, China's Petroleum Industry attaches great importance to the investigation and application improving recovery efficiency technique, along with late period of oil field, what oil pipe eccentric wear, corrosion and fouling caused lie, and well increases year by year, therefore cause to scrap and account for 1/6 of oil pipe year total consumption and go up, pipe bar drops into high, and production cost increases year by year.The features such as liner oil pipe has anti-corruption, wear-resistant, resistance coefficient is little, heatproof, effectively can prevent abrasion and corrosion, improve the work-ing life of oil pipe.Existing technology has carbon zirconium undercoat anticorrosive anti-eccentric-wearing oil pipe, rare earth titanium molybdenum anticorrosive anti-eccentric-wearing oil pipe, HDPE high density polyethylene(HDPE) inside lining anti-corrosive eccentric wear-resistant oil pipe.The above two are internal coating tubing, and this coating class oil pipe tooling cost is high, and easily comes off in the process of going into the well, and loses eccentric abrasion prevention, etch-proof effect.And HDPE high density polyethylene(HDPE) inside lining anti-corrosive eccentric wear-resistant oil pipe, problem maximum is in use exactly non-refractory, and it can only use in the well ore deposit below 80 DEG C, so for the well of well depth below 2500 meters, will Yin Wendu too high and cannot use.
Summary of the invention
Object of the present invention is exactly the defect existed for prior art, provides a kind of and can improve corrosion-resistant, wear resistance and resistant to elevated temperatures ultrahigh molecular weight polyethylene(UHMWPE) internal lining pipe.
Its technical scheme is: ultrahigh molecular weight polyethylene(UHMWPE) internal lining pipe, comprises the raw material of following mass percent:
Prepared according to recipe requirements by above-mentioned raw materials, raw material pulverizing stirred by stirring-type granular mill, then by the granularity of vibratory screening apparatus determination powder materials, finally by plastic material extruding machine, the raw material that proportioning is good is extruded into internal lining pipe.
Described filler comprises the mixing of one or more of wollastonite of aluminium sesquioxide, potassium titanate, silicon-dioxide, carbon black, graphite, glass microballon, glass fibre, molybdenumdisulphide, talcum powder, polynite, kaolin, needle-like.
The best in quality per-cent of above-mentioned raw materials is:
By the extrusion molding speed of adjustment extruding machine during preparation, determine the thickness of pipe of internal lining pipe, wherein, extruding machine three warm area temperature are respectively: 200 DEG C, 260 DEG C, 285 DEG C.
Described vibratory screening apparatus is 100 orders.
The present invention compared with prior art, have the following advantages: by adding dicumyl peroxide, polypropylene and acryl silicone, when injection moulding, their better decomposes can be made, the mobility of injection moulding can be improved, and can resistance to impact shock be improved, add needle-like wollastonite, can heat-drawn wire be improved, be combined by them like this, thus realize corrosion-resistant, wear-resisting and resistant to elevated temperatures effect.
Embodiment
Embodiment one:
Ultrahigh molecular weight polyethylene(UHMWPE) internal lining pipe, comprises the raw material of following mass percent:
During preparation, prepared by above-mentioned raw materials according to recipe requirements, raw material pulverizing stirred by stirring-type granular mill, then by the granularity of vibratory screening apparatus determination powder materials, vibratory screening apparatus is 100 orders; Finally by plastic material extruding machine, the raw material that proportioning is good is extruded into internal lining pipe.Wherein, by the extrusion molding speed of adjustment extruding machine during preparation, determine the thickness of pipe of internal lining pipe, extruding machine three warm area temperature are respectively: 200 DEG C, 260 DEG C, 285 DEG C.
Above-mentioned filler to be mass percent the be silicon-dioxide of 2%, the glass microballon of 2% and 2% needle-like wollastonite.
Chemical modification:
Dicumyl peroxide (DCP), can improve resistance to impact shock.
Add acryl silicone, make its better decomposes.
Physically modified:
This experimental stage, the filler of physically modified mainly contains the wollastonite etc. of aluminium sesquioxide, potassium titanate, silicon-dioxide, carbon black, graphite, glass microballon, glass fibre, molybdenumdisulphide, talcum powder, polynite, kaolin, needle-like.
The main shock strength to ultrahigh molecular weight polyethylene(UHMWPE), heat-drawn wire, this three aspect of wear resistance have been done and have been researched and analysed accordingly.The present invention can also add aluminium sesquioxide, can improve unit elongation; With add diatomite etc., thus improve wear resistance, and temperature tolerance.
By adding glass microballon, wear resistance 35-40% can be improved; Add silicon-dioxide, its impact strength can be improved; Add aluminium sesquioxide, can unit elongation be improved; Add pp material and polypropylene, the mobility of injection moulding can be improved; Add needle-like wollastonite, can heat-drawn wire be improved; Add diatomite, can wear resistance be improved, and temperature tolerance.
Embodiment two:
Ultrahigh molecular weight polyethylene(UHMWPE) internal lining pipe, comprises the raw material of following mass percent:
Other are substantially identical with embodiment one, do not repeat them here.
Embodiment three:
Ultrahigh molecular weight polyethylene(UHMWPE) internal lining pipe, comprises the raw material of following mass percent:
Other are substantially identical with embodiment one, do not repeat them here.
According to inspecting standard: Q/SH10201889-2011, test to internal lining pipe, assay is as follows:
To sum up, the present invention can make wear resistance improve 39.67% by the internal lining pipe that this several raw material makes, and heat resistance reaches 150 degrees Celsius.
The present invention is not limited to above-mentioned embodiment, and in the ken that those skilled in the art possess, can also make a variety of changes under the prerequisite not departing from present inventive concept, the content after change still belongs to protection scope of the present invention.
Claims (5)
1. ultrahigh molecular weight polyethylene(UHMWPE) internal lining pipe, is characterized in that: the raw material comprising following mass percent:
Ultrahigh molecular weight polyethylene(UHMWPE) 82-90%; Polypropylene 1-5%;
Dicumyl peroxide 2-3%; Acryl silicone 1-3%;
Filler 5-10%; Prepare according to following technique:
Prepared according to recipe requirements by above-mentioned raw materials, raw material pulverizing stirred by stirring-type granular mill, then by the granularity of vibratory screening apparatus determination powder materials, finally by plastic material extruding machine, the raw material that proportioning is good is extruded into internal lining pipe.
2. ultrahigh molecular weight polyethylene(UHMWPE) internal lining pipe according to claim 1, is characterized in that: described filler comprises the mixing of one or more of wollastonite of aluminium sesquioxide, potassium titanate, silicon-dioxide, carbon black, graphite, glass microballon, glass fibre, molybdenumdisulphide, talcum powder, polynite, kaolin, needle-like.
3. ultrahigh molecular weight polyethylene(UHMWPE) internal lining pipe according to claim 1, is characterized in that: the best in quality per-cent of above-mentioned raw materials is:
Ultrahigh molecular weight polyethylene(UHMWPE) 85%; Polypropylene 3%;
Dicumyl peroxide 2.5%; Acryl silicone 2%;
Filler 7.5%.
4. ultrahigh molecular weight polyethylene(UHMWPE) internal lining pipe according to claim 1 and 2, it is characterized in that: by the extrusion molding speed of adjustment extruding machine during preparation, determine the thickness of pipe of internal lining pipe, wherein, extruding machine three warm area temperature are respectively: 200 DEG C, 260 DEG C, 285 DEG C.
5. ultrahigh molecular weight polyethylene(UHMWPE) internal lining pipe according to claim 4, is characterized in that: described vibratory screening apparatus is 100 orders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510688121.4A CN105199204A (en) | 2015-10-21 | 2015-10-21 | Ultra-high molecular weight polyethylene lining pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510688121.4A CN105199204A (en) | 2015-10-21 | 2015-10-21 | Ultra-high molecular weight polyethylene lining pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105199204A true CN105199204A (en) | 2015-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510688121.4A Pending CN105199204A (en) | 2015-10-21 | 2015-10-21 | Ultra-high molecular weight polyethylene lining pipe |
Country Status (1)
| Country | Link |
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| CN (1) | CN105199204A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194715A (en) * | 2017-12-28 | 2018-06-22 | 胜利油田胜鑫防腐有限责任公司 | A kind of anticorrosion antiwear steel moulds surface line |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101463156A (en) * | 2007-12-19 | 2009-06-24 | 上海化工研究院天地科技发展有限公司 | Superhigh molecular weight polyethylene material and preparation thereof |
| CN103044754A (en) * | 2013-01-22 | 2013-04-17 | 朱云杰 | Ultra-high molecular weight polyethylene/carbon nanotube oil tube lining tube and preparation method thereof |
-
2015
- 2015-10-21 CN CN201510688121.4A patent/CN105199204A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101463156A (en) * | 2007-12-19 | 2009-06-24 | 上海化工研究院天地科技发展有限公司 | Superhigh molecular weight polyethylene material and preparation thereof |
| CN103044754A (en) * | 2013-01-22 | 2013-04-17 | 朱云杰 | Ultra-high molecular weight polyethylene/carbon nanotube oil tube lining tube and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194715A (en) * | 2017-12-28 | 2018-06-22 | 胜利油田胜鑫防腐有限责任公司 | A kind of anticorrosion antiwear steel moulds surface line |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151230 |