CN105482233A - Ultrahigh molecular weight polyethylene composition for extrusion molding escape pipeline - Google Patents
Ultrahigh molecular weight polyethylene composition for extrusion molding escape pipeline Download PDFInfo
- Publication number
- CN105482233A CN105482233A CN201610054246.6A CN201610054246A CN105482233A CN 105482233 A CN105482233 A CN 105482233A CN 201610054246 A CN201610054246 A CN 201610054246A CN 105482233 A CN105482233 A CN 105482233A
- Authority
- CN
- China
- Prior art keywords
- parts
- molecular weight
- ultrahigh molecular
- polyethylene
- uhmwpe
- 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.)
- Granted
Links
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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/004—Additives being defined by their length
-
- 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
-
- 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
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/068—Ultra high molecular weight polyethylene
Landscapes
- 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)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention relates to an ultrahigh molecular wight polyethylene composition for an extrusion molding escape pipeline, and belongs to the technical field of ultrahigh molecular wight polyethylene materials. The ultrahigh molecular wight polyethylene composition for the extrusion molding escape pipeline is characterized by being prepared from, by weight, 100 parts of ultrahigh molecular wight polyethylene, 3-14 parts of short-fiber glass fiber, 5-18 pars of basic magnesium sulphate whiskers, 2-8 parts of dioctyl phthalate, 1-10 parts of fluoro-hydrocarbons modified polysiloxane and 0-5 parts of polyethylene wax. According to the ultrahigh molecular wight polyethylene composition, the processing difficulty of the ultrahigh molecular wight polyethylene is changed, for the composition, the extrusion property is greatly improved, physical and mechanical properties of the made escape pipeline are better, the pressure-resistant property and the impact-resistant property of the escape pipeline with the same wall thickness and pipe diameter can be improved by 30% or above.
Description
Technical field
For a ultra-high molecular weight polyvinyl composite for extrusion moulding pipe for escaping, belong to superhigh molecular weight polyethylene material technical field.
Background technology
In order to increase the escape probability of tunnel construction accident or be convenient to accident rescue, need to lay pipe for escaping in tunnel driving face.Effect due to pipe for escaping be personnel directly by or material and rescue equipment conveying, so need caliber larger.The withstand voltage properties of Large Diameter Pipeline pipe for escaping and shock resistance weigh the important indicator of its performance.The many employings of existing pipe for escaping are at Large Diameter Pipeline steel pipe or high-density polyethylene steel band winding tube, but steel pipe weight is large, pipe for escaping carrying and connection construction difficult, high-density polytene pipeline steel strip winding pipe withstand voltage properties and shock resistance undesirable again.
Ultrahigh molecular weight polyethylene(UHMWPE) (UHMWPE) is a kind of thermoplastic engineering plastic with linear structure, and molecular weight is up to more than 1,500,000.Density is little, and tool has good wearability, self lubricity, shock resistance, erosion resistance etc.But because the viscosity of ultrahigh molecular weight polyethylene(UHMWPE) (UHMW-PE) molten state is up to 108Pa*s, mobility extreme difference, its melt index is almost nil, so be difficult to process with general machining process.In addition, pure ultra-high molecular mass polyethylene (UHMWPE) is although pipeline excellent shock resistance, and large diameter pipeline ring stiffness is low, and withstand voltage properties is poor.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide one and easily extrude, withstand voltage properties and shock resistance obtain the ultra-high molecular weight polyvinyl composite for extrusion moulding pipe for escaping of larger raising.
The technical solution adopted for the present invention to solve the technical problems is: this is used for the ultra-high molecular weight polyvinyl composite of extrusion moulding pipe for escaping, it is characterized in that, weight part consists of: ultrahigh molecular weight polyethylene(UHMWPE) 100 parts, 3 ~ 14 parts, short fiber glass fibre, alkali magnesium sulfate crystal whisker 5 ~ 18 parts, dioctyl phthalate (DOP) 2 ~ 8 parts, fluorocarbon based modified polyorganosiloxane 1 ~ 10 part, polyethylene wax 0-5 part.The invention provides a kind of composition of ultrahigh molecular weight polyethylene(UHMWPE); short fiber glass fibre, alkali magnesium sulfate crystal whisker, dioctyl phthalate (DOP) and polyethylene wax is added in composition; the present invention also adds fluorocarbon based modified polyorganosiloxane in the composition; reach the melt fracture speed improving extruding pipe material; reduce mould mouth mould buildup; improve rheological property (reduction viscosity), improve the effect of surface smoothness, improve the processing difficulty of ultrahigh molecular weight polyethylene(UHMWPE).
Preferably, weight part consists of: ultrahigh molecular weight polyethylene(UHMWPE) 100 parts, 13 parts, short fiber glass fibre, alkali magnesium sulfate crystal whisker 17 parts, dioctyl phthalate (DOP) 7 parts, fluorocarbon based modified polyorganosiloxane 3 ~ 5.5 parts, polyethylene wax 3 parts.
Preferably, the molecular weight of described ultrahigh molecular weight polyethylene(UHMWPE) is 2,500,000 ~ 5,500,000.
Preferably, the length of described short fiber glass fibre is at 3mm ~ 5mm.
Preferably, the length of described alkali magnesium sulfate crystal whisker is at 40 μm ~ 55 μm.
Preferably, polyethylene wax molecular weight is 2000 ~ 3500.
Under above-mentioned optimum condition, the optimum regime that the physical and chemical performance of extrusion performance of the present invention and pipe can be made to reach the present invention can reach.
Compared with prior art; tool in technique scheme has the following advantages or beneficial effect: the composition that the invention provides a kind of ultrahigh molecular weight polyethylene(UHMWPE); short fiber glass fibre, alkali magnesium sulfate crystal whisker, dioctyl phthalate (DOP) and polyethylene wax is added in composition; the present invention also adds fluorocarbon based modified polyorganosiloxane in the composition; reach the melt fracture speed improving extruding pipe material; reduce mould mouth mould buildup; improve rheological property (reduction viscosity), improve the effect of surface smoothness.Change the processing difficulty of ultrahigh molecular weight polyethylene(UHMWPE).This composition, after twin screw extruder is blended, can have the mobility being suitable for extrusion moulding.One dimension short fiber glass fibre simultaneously in the present composition and alkali magnesium sulfate crystal whisker, fully miscible with the ultrahigh molecular weight polyethylene(UHMWPE) of linear long-chain, evenly be distributed in ultrahigh molecular weight polyethylene(UHMWPE), give pipeline more excellent withstand voltage properties, identical wall thickness and caliber side pipe for escaping withstand voltage properties and shock resistance improve more than 30%.
Embodiment
Below by specific embodiment to the ultra-high molecular weight polyvinyl composite for extrusion moulding pipe for escaping of the present invention, be described further, wherein embodiment 1 is most preferred embodiment.
Embodiment 1
Ultrahigh molecular weight polyethylene(UHMWPE) 100 parts, 13 parts, short fiber glass fibre, alkali magnesium sulfate crystal whisker 17 parts, dioctyl phthalate (DOP) 7 parts, fluorocarbon based modified polyorganosiloxane 4.8 parts, polyethylene wax 3 parts;
Wherein, aluminum oxide be purity 99.99 aluminum oxide powder; The molecular weight of ultrahigh molecular weight polyethylene(UHMWPE) is 4,000,000 ~ 5,000,000; The length of short fiber glass fibre is at 3mm ~ 5mm; The length of alkali magnesium sulfate crystal whisker is at 40 μm ~ 55 μm;
After above-mentioned composition precise, utilize twin screw extruder to extrude blended, recycling single screw extrusion machine pushes to into pipe mold;
Be shaped to diameter at 1m, thickness of pipe is in the escape tube of 20mm.
Embodiment 2
The weight of ultrahigh molecular weight polyethylene(UHMWPE) combination is ultrahigh molecular weight polyethylene(UHMWPE) 100 parts, 12 parts, short fiber glass fibre, alkali magnesium sulfate crystal whisker 16 parts, dioctyl phthalate (DOP) 6 parts, fluorocarbon based modified polyorganosiloxane 6 parts, polyethylene wax 4 parts;
Wherein, aluminum oxide is the aluminum oxide powder of purity more than 99.5%; The molecular weight of ultrahigh molecular weight polyethylene(UHMWPE) is 3,500,000 ~ 4,650,000; The length of short fiber glass fibre is at 3mm ~ 5mm; The length of alkali magnesium sulfate crystal whisker is at 40 μm ~ 55 μm;
After above-mentioned composition precise, utilize twin screw extruder to extrude blended, recycling single screw extrusion machine pushes to into pipe mold;
Be shaped to diameter at 1m, thickness of pipe is in the escape tube of 20mm.
Embodiment 3
The weight of ultrahigh molecular weight polyethylene(UHMWPE) combination is ultrahigh molecular weight polyethylene(UHMWPE) 100 parts, 11 parts, short fiber glass fibre, alkali magnesium sulfate crystal whisker 18 parts, dioctyl phthalate (DOP) 5 parts, fluorocarbon based modified polyorganosiloxane 10 parts, polyethylene wax 5 parts;
Wherein, aluminum oxide is the aluminum oxide powder of purity more than 99.5%; The molecular weight of ultrahigh molecular weight polyethylene(UHMWPE) is 3,000,000 ~ 5,500,000; The length of short fiber glass fibre is at 3mm ~ 5mm; The length of alkali magnesium sulfate crystal whisker is at 40 μm ~ 55 μm;
After above-mentioned composition precise, utilize twin screw extruder to extrude blended, recycling single screw extrusion machine pushes to into pipe mold;
Be shaped to diameter at 1m, thickness of pipe is in the escape tube of 20mm.
Embodiment 4
The weight of ultrahigh molecular weight polyethylene(UHMWPE) combination is ultrahigh molecular weight polyethylene(UHMWPE) 100 parts, 14 parts, short fiber glass fibre, alkali magnesium sulfate crystal whisker 15 parts, dioctyl phthalate (DOP) 8 parts, fluorocarbon based modified polyorganosiloxane 1 part;
Wherein, aluminum oxide is the aluminum oxide powder of purity more than 99.5%; The molecular weight of ultrahigh molecular weight polyethylene(UHMWPE) is 2,500,000 ~ 3,200,000; The length of short fiber glass fibre is at 3mm ~ 5mm; The length of alkali magnesium sulfate crystal whisker is at 40 μm ~ 55 μm;
After above-mentioned composition precise, utilize twin screw extruder to extrude blended, recycling single screw extrusion machine pushes to into pipe mold;
Be shaped to diameter at 1m, thickness of pipe is in the escape tube of 20mm.
Comparative example 1
Preparation technology is with embodiment 1, and the formula unlike composition is ultrahigh molecular weight polyethylene(UHMWPE) 100 parts, dioctyl phthalate (DOP) 7 parts, polyethylene wax 3 parts.
Comparative example 2
Preparation technology is with embodiment 1, and the formula unlike composition is ultrahigh molecular weight polyethylene(UHMWPE) 100 parts, 13 parts, short fiber glass fibre, alkali magnesium sulfate crystal whisker 17 parts, dioctyl phthalate (DOP) 5 ~ 8 parts.
Comparative example 3
Preparation technology is with embodiment 1, and the formula unlike composition is that molecular weight is 4,000,000 ~ 5,000,000 ultrahigh molecular weight polyethylene(UHMWPE) 100 parts.
The Performance Detection of the escape tube of each embodiment and comparative example sees the following form;
As can be seen from the above table, the proportioning of the present composition improves withstand voltage properties and the shock resistance of ultrahigh molecular weight polyethylene(UHMWPE) greatly, if be the composition of the present composition not by proportioning, although can play certain improvement result, effect is not clearly yet.
The above is only preferred embodiment of the present invention, and be not restriction the present invention being made to other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the Equivalent embodiments of equivalent variations.But everyly do not depart from technical solution of the present invention content, any simple modification, equivalent variations and the remodeling done above embodiment according to technical spirit of the present invention, still belong to the protection domain of technical solution of the present invention.
Claims (5)
1. the ultra-high molecular weight polyvinyl composite for extrusion moulding pipe for escaping, it is characterized in that, weight part consists of: ultrahigh molecular weight polyethylene(UHMWPE) 100 parts, 3 ~ 14 parts, short fiber glass fibre, alkali magnesium sulfate crystal whisker 5 ~ 18 parts, dioctyl phthalate (DOP) 2 ~ 8 parts, fluorocarbon based modified polyorganosiloxane 1 ~ 10 part, polyethylene wax 0 ~ 5 part.
2. a kind of ultra-high molecular weight polyvinyl composite for extrusion moulding pipe for escaping according to claim 1, it is characterized in that, weight part consists of: ultrahigh molecular weight polyethylene(UHMWPE) 100 parts, 13 parts, short fiber glass fibre, alkali magnesium sulfate crystal whisker 17 parts, dioctyl phthalate (DOP) 7 parts, fluorocarbon based modified polyorganosiloxane 3 ~ 5.5 parts, polyethylene wax 3 parts.
3. a kind of ultra-high molecular weight polyvinyl composite for extrusion moulding pipe for escaping according to claim 1 and 2, is characterized in that: the molecular weight of described ultrahigh molecular weight polyethylene(UHMWPE) is 2,500,000 ~ 5,500,000.
4. a kind of ultra-high molecular weight polyvinyl composite for extrusion moulding pipe for escaping according to claim 1 and 2, is characterized in that: the length of described short fiber glass fibre is at 3mm ~ 5mm.
5. a kind of ultra-high molecular weight polyvinyl composite for extrusion moulding pipe for escaping according to claim 1 and 2, is characterized in that: the length of described alkali magnesium sulfate crystal whisker is at 40 μm ~ 55 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610054246.6A CN105482233B (en) | 2016-01-27 | 2016-01-27 | A kind of ultra-high molecular weight polyvinyl composite for extrusion molding pipe for escaping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610054246.6A CN105482233B (en) | 2016-01-27 | 2016-01-27 | A kind of ultra-high molecular weight polyvinyl composite for extrusion molding pipe for escaping |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105482233A true CN105482233A (en) | 2016-04-13 |
| CN105482233B CN105482233B (en) | 2017-12-29 |
Family
ID=55669522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610054246.6A Expired - Fee Related CN105482233B (en) | 2016-01-27 | 2016-01-27 | A kind of ultra-high molecular weight polyvinyl composite for extrusion molding pipe for escaping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105482233B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111440371A (en) * | 2020-03-24 | 2020-07-24 | 杭州联通管业有限公司 | Anti-freezing polyethylene power tube and preparation method thereof |
| CN115651295A (en) * | 2022-10-14 | 2023-01-31 | 安徽杰蓝特新材料有限公司 | Stretch-proofing PE gas pipe |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1156528A (en) * | 1994-06-02 | 1997-08-06 | 阿玛提通讯公司 | Method and apparatus for coordinating multi-point-to-point communications in multi-tone data transmission system |
| CN1156527A (en) * | 1994-04-20 | 1997-08-06 | 汤姆森消费电子有限公司 | Asynchronous control signal generating apparatus |
| CN1156527C (en) * | 2001-12-28 | 2004-07-07 | 阎镇达 | Ultra-high molecular weight polyethylene three-component blend and its preparation method |
| CN1156528C (en) * | 2001-12-28 | 2004-07-07 | 阎镇达 | Organic silicon/ultra-high molecular weight polyethylene blend and its preparation method |
| CN101344198A (en) * | 2008-08-21 | 2009-01-14 | 淄博迪浩耐磨管道有限公司 | Ultrahigh molecular weight polyethylene abrasion-proof pipe |
| US20110293989A1 (en) * | 2009-02-06 | 2011-12-01 | Sumitomo Chemical Company, Limited | Resin composition, sheet and porous film |
| CN103788462A (en) * | 2014-02-28 | 2014-05-14 | 苏州瑞邦塑胶有限公司 | Anti-wearing plastic particles |
| CN104910498A (en) * | 2015-06-27 | 2015-09-16 | 新昌县绿泰塑胶有限公司 | Wear-resistant plastic granule |
-
2016
- 2016-01-27 CN CN201610054246.6A patent/CN105482233B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1156527A (en) * | 1994-04-20 | 1997-08-06 | 汤姆森消费电子有限公司 | Asynchronous control signal generating apparatus |
| CN1156528A (en) * | 1994-06-02 | 1997-08-06 | 阿玛提通讯公司 | Method and apparatus for coordinating multi-point-to-point communications in multi-tone data transmission system |
| CN1156527C (en) * | 2001-12-28 | 2004-07-07 | 阎镇达 | Ultra-high molecular weight polyethylene three-component blend and its preparation method |
| CN1156528C (en) * | 2001-12-28 | 2004-07-07 | 阎镇达 | Organic silicon/ultra-high molecular weight polyethylene blend and its preparation method |
| CN101344198A (en) * | 2008-08-21 | 2009-01-14 | 淄博迪浩耐磨管道有限公司 | Ultrahigh molecular weight polyethylene abrasion-proof pipe |
| US20110293989A1 (en) * | 2009-02-06 | 2011-12-01 | Sumitomo Chemical Company, Limited | Resin composition, sheet and porous film |
| CN103788462A (en) * | 2014-02-28 | 2014-05-14 | 苏州瑞邦塑胶有限公司 | Anti-wearing plastic particles |
| CN104910498A (en) * | 2015-06-27 | 2015-09-16 | 新昌县绿泰塑胶有限公司 | Wear-resistant plastic granule |
Non-Patent Citations (1)
| Title |
|---|
| 李武: "《无机晶须》", 30 April 2005, 化学工业出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111440371A (en) * | 2020-03-24 | 2020-07-24 | 杭州联通管业有限公司 | Anti-freezing polyethylene power tube and preparation method thereof |
| CN115651295A (en) * | 2022-10-14 | 2023-01-31 | 安徽杰蓝特新材料有限公司 | Stretch-proofing PE gas pipe |
| CN115651295B (en) * | 2022-10-14 | 2024-02-02 | 安徽杰蓝特新材料有限公司 | Stretch-proofing PE gas pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105482233B (en) | 2017-12-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104045901B (en) | The processing method of ultra-high molecular weight polyvinyl composite and production said composition tubing | |
| CN104989890B (en) | Underground double-layer reinforced and modified polyolefin (DRPO) corrugated pipe for water draining and sewage discharging | |
| CN103160030A (en) | Thermoplastic composite material for hollow building templates and manufacture method thereof and application thereof | |
| CN104031305A (en) | Material special for ultrahigh-molecular-weight polyethylene tube, and preparation and application thereof | |
| CN102911425A (en) | Special material for extrusion-grade ultra-high molecular weight polyethylene pipe with high melt fluidity and preparation method thereof | |
| CN104277293A (en) | Enhanced HDPE (high-density polyethylene) double-wall corrugated pipe | |
| CN105482233A (en) | Ultrahigh molecular weight polyethylene composition for extrusion molding escape pipeline | |
| CN111019209B (en) | Ultra-high molecular weight polyethylene composition for preparing liner tube and preparation method thereof | |
| CN107057154A (en) | Wear resistant polyethylene composite pipe | |
| EP2894196B1 (en) | Rigid ipvc pipe resin composition and rigid ipvc pipe, with excellent stiffness and resistance to water pressure | |
| CN104177829A (en) | Toughened wear-resistant composite material and preparation method thereof | |
| CN107418186A (en) | A kind of vinal enhancing PPO/PA6 alloys of high-modulus and preparation method thereof | |
| CN103073794A (en) | Special material for high-rigidity high-heat-resistance low-shrinkage air conditioning wind wheel and preparation method thereof | |
| CN106523806B (en) | A kind of composite polyethylene alloy pipe and preparation method thereof | |
| CN112708192B (en) | Polypropylene/thermoplastic elastomer blend and preparation method and application thereof | |
| CN114605727A (en) | Regenerated polyethylene nano modified alloy MUHDPE (polyethylene) pipe | |
| CN103421236A (en) | Polypropylene composition and polypropylene blown film | |
| CN105482283A (en) | Abrasion-resistant anti-aging plastic material and preparing method thereof | |
| CN108148248A (en) | Ultrahigh molecular weight polyethylene composite material and preparation method and application thereof | |
| CN106751338A (en) | A kind of lower shrinkage, high thermal stability impact-resistant polystyrene material and preparation method thereof | |
| CN1039209C (en) | Polyolefin/filler composite materials and their use | |
| CN111531967A (en) | Nano antibacterial PE-RT water supply pipe and preparation process | |
| CN106700329A (en) | Preparation method of antistatic ultra-flexible coal mine ventilating duct | |
| CN111040307A (en) | Polypropylene corrugated pipe composite material and preparation method of composite polypropylene corrugated pipe | |
| US20220325100A1 (en) | High toughness electrically conductive peek for aircraft fuel system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171229 Termination date: 20190127 |