CN104045898A - Ultra-high molecular weight polyethylene (UHMWPE) material and preparation method thereof - Google Patents
Ultra-high molecular weight polyethylene (UHMWPE) material and preparation method thereof Download PDFInfo
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- CN104045898A CN104045898A CN201410276455.6A CN201410276455A CN104045898A CN 104045898 A CN104045898 A CN 104045898A CN 201410276455 A CN201410276455 A CN 201410276455A CN 104045898 A CN104045898 A CN 104045898A
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
- B29C2948/9259—Angular velocity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92723—Content, e.g. percentage of humidity, volatiles, contaminants or degassing
-
- 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
- C08K2201/001—Conductive additives
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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
- C08K2201/00—Specific properties of additives
- C08K2201/017—Additives being an antistatic agent
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/04—Antistatic
-
- 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
Abstract
The invention aims to provide an ultra-high molecular weight polyethylene (UHMWPE) material with antistatic property and a certain processing fluidity and a preparation method of the UHMWPE material. The antistatic property of the UHMWPE material is remarkably improved through researching the influences of different varieties of carbon black and expanded graphite to the performance of UHMWPE/PP, compounding the different varieties, optimizing the dosage, studying the influences of the kind, compounding way and dosage of conductive filler to the volume resistivity, processing rheological property, composite material mechanical performance and wear resistance (friction coefficient, wear scar width and the like) of UHMWPE/PP, optimizing the scheme and carrying out antistatic modification on UHMWPE. The antistatic modified UHMWPE can be used for preventing pipe fitting products from generating static electricity by friction and extrusion in forming, transporting and using processes, lowering the material forming operation difficulty and improving the appearance and quality of the UHMWPE material. Furthermore, the UHMWPE material can also be used for avoiding the static fire phenomenon caused by static electricity accumulation, and greatly improving the production safety.
Description
Technical field
The present invention relates to a kind of technical field of polymer materials, especially a kind of ultrahigh molecular weight polyethylene(UHMWPE) (UHMWPE) material with static resistance and certain processing fluidity and preparation method thereof.
Background technology
Ultrahigh molecular weight polyethylene(UHMWPE) (UHMWPE) refers to that viscosity-average molecular weight is at more than 1,500,000 line style high density polyethylene(HDPE)s.UHMWPE has identical molecular structure with common PE, and main chain chain link is (CH
2-CH
2) but high molecular weight gives the many common PE of UHMWPE incomparable excellent properties.
High molecular weight makes UHMWPE when solid state, have excellent over-all properties, also gives its very unique melt characteristic simultaneously, to forming process, brings very large difficulty.UHMWPE is elastomer gel when melting on the one hand, and viscosity is high, and melt flow index (MI) is almost 0, mobility extreme difference; On the other hand, the critical shear rate of UHMWPE melt is extremely low, is easy to occur melt fracture.Therefore be difficult to process UHMWPE goods by conventional thermoplastics processing method as Screw Extrusion and injection molding.
At present, for UHMWPE processing difficulties, it flows processing modified is more the method for employing and other polyolefin blend or interpolation conventional lubricant and the two dual-purpose.Being used for UHMWPE blend is mainly conventional P E and PP to improve the polyolefine of UHMWPE processibility, and lubricant comprises paraffin, polyethylene wax and calcium stearate etc.According to bibliographical information, LLDPE/UHMWPE, HDPE/UHMWPE compares with pure UHMWPE with LDPE/UHMEPE blend, melt viscosity obviously reduces, but PE has participated in the formation of UHMWPE chain entanglement network, can not effectively reduce the chain entanglement density of UHMWPE, thereby PE is poor to the processing modified effect of UHMWPE.Research shows to adopt and polyolefin blend and lubricating modification simultaneously, can improve more significantly the mobility of UHMWPE, and the processing characteristics of UHMWPE is improved to a greater degree.
But, lot of domestic and international research at present shows, after the mobility of UHMWPE is fully improved, adopt conventional extruding can realize it with injection-moulding device and extrude and inject processing, but significantly improving conventionally by obtaining with the common polyolefine with good fluidity or the lubricant blend of vast scale of UHMWPE mobility, can cause declining to a great extent of blend mechanical property and friction and wear behavior like this, affect its use properties.Therefore, when improving the processing rheological of UHMWPE, optimize or keep as much as possible the good mechanical property of UHMWPE and friction and wear behavior, becoming for many years UHMWPE and study unfailing hot subject.
And because UHMWPE has good over-all properties, the tubing made from this material, be particularly suitable for carrying the medium of various corrodibility, abradability, adhesivity, fouling tendency, therefore, UHMWPE alternative metals pipeline has unique advantage as Wearproof transfer piping made.But the volume specific resistance of UHMWPE is higher, ρ
vbe approximately 10
17-10
18Ω cm, UHMWPE pipe fitting goods, in moulding, transportation and use procedure, are rubbed and extruding is easy to produce and accumulation static, and voltage can be up to tens thousand of volts sometimes.The generation of this static and accumulation, may bring difficulty to forming operation, affects quality product, also may be because dust suction is serious, and be difficult to purify and affect plastics outward appearance and the application in ultrapurification environment.Particularly serious, when accumulation of static electricity will static discharge occur and produce spark during to certain numerical value.Simultaneously, along with the industries such as water conservancy, thermoelectricity, transportation, mine are to wear-resistant plastic tubing urgent need more and more, and material is in the past difficult to meet the needs of social development, this has promoted the formulation optimization of processing materials and the making constant progress of complete processing of UHMWPE material, and new UHMWPE material will continue to bring out out.
The present invention is in order better to realize continuous, the efficient and mass-producing moulding of UHMWPE goods, rheology modified by adding composite auxiliary for processing to process UHMWPE on the one hand, be intended to keep as far as possible under the prerequisite of the good mechanical property of UHMWPE and friction and wear behavior the effect that the processing rheological that makes UHMWPE/PP co-mixing system is further significantly improved; Simultaneously in order to improve UHMWFE antistatic effect, adopt different conductive filler materials to carry out antistatic modified research to UHMWPE, be devoted to produce and a kind ofly there is static resistance and have the ultrahigh molecular weight polyethylene(UHMWPE) of certain processing fluidity (UHMWPE) material and preparation method thereof simultaneously.
Summary of the invention
The shortcoming existing for above-mentioned prior art, the experience of this area work is engaged in inventor's accumulation for many years, through feasibility study repeatedly, obtain eventually generation of the present invention, the present invention is in order better to realize continuous, the efficient and mass-producing moulding of UHMWPE goods, on the one hand by adding polypropylene (PP) resin and composite auxiliary for processing UHMWPE to be processed rheology modified, be intended to keep as far as possible under the prerequisite of the good mechanical property of UHMWPE and friction and wear behavior the effect that the processing rheological that makes UHMWPE/PP co-mixing system is further significantly improved; Simultaneously in order to improve UHMWFE antistatic effect, adopt different conductive filler materials to carry out antistatic modified research to UHMWPE, be devoted to produce and a kind ofly there is static resistance and have the ultrahigh molecular weight polyethylene(UHMWPE) of certain processing fluidity (UHMWPE) material and preparation method thereof simultaneously.
The technical solution used in the present invention: a kind of ultrahigh molecular weight polyethylene(UHMWPE) (UHMWPE) material prescription (according to weight percent) with static resistance and certain processing fluidity disclosed by the invention is: (1) UHMWPE resin: 55-84%, (2) PP resin: 5-15% (3) makes composite auxiliary for processing: 2-5% by oneself; (4) graphitized carbon black: 5-15%; (5) expanded graphite: 3-8%; (6) oxidation inhibitor: 0.2-0.6%; (7) other auxiliary agents: 0.8-1.4%.Each component is mixed after 1～2 minute and is put into twin screw extruder extruding pelletization and get final product in high speed mixer.
Wherein said a kind of ultrahigh molecular weight polyethylene(UHMWPE) (UHMWPE) material with static resistance and certain processing fluidity, it is characterized in that UHMWPE resin is that molecular weight is more than 1,500,000 polyvinyl resin, and at 90 ℃, dry 4 hours, control moisture below 0.1%;
PP resin is acrylic resin, and MI is 10g/10min, and at 90 ℃, dries 4 hours, controls moisture below 0.1%; Self-control composite auxiliary for processing is at 100 ℃ of high mixers, to be mixed by 15/50/35 part by weight by maleic anhydride graft PP/ diatomite/glass microballon, and preferred, maleic anhydride grafting ratio is greater than 1%; Graphitized carbon black is the carbon black with low resistance performance, can give material conduction or anti-static electrification; Expanded graphite is Novel carbon material, has extremely strong specific conductivity; Oxidation inhibitor is phenolic antioxidant four [β-(3 ', 5 '-di-t-butyl-4 '-hydroxy phenyl) propionic acid] pentaerythritol ester and phosphite ester kind antioxidant (2,4-di-tert-butyl-phenyl) tris phosphite; Other auxiliary agents are toner and brightener.
The present invention prepares the above-mentioned method with the superhigh molecular weight polyethylene material of static resistance and certain processing fluidity, comprises the following steps:
(1) raw-material processing and mixing
UHMWPE resin dries at 90 ℃ controls moisture for 4 hours below 0.1%; PP resin dries 4 hours at 90 ℃, controls moisture below 0.1%;
Major ingredient and self-control composite auxiliary for processing, graphitized carbon black, expanded graphite, oxidation inhibitor, other auxiliary agents are mixed 2 minutes in high speed mixer, make the abundant dispersed with stirring of each component even;
(2) melt extrude
The material mixing is added in twin screw extruder, melt extrude temperature between 180-240 ℃, screw speed is 400 revs/min;
(3) granulation and aftertreatment
The material of extruding is carried out cooling, air-dry, pelletizing, crosses strong magnetic, is packaged to be finished product.
Of the present invention a kind ofly have static resistance and have simultaneously the ultrahigh molecular weight polyethylene(UHMWPE) of certain processing fluidity (UHMWPE) material when keeping the processing rheological of UHMWPE/PP co-mixing system, can avoid the pipe fitting goods of this material produce owing to rubbing and pushing, to produce static in moulding, transportation and use procedure, and reduced the difficulty that forming materials operates, improved outward appearance and the quality of product; More can avoid because of the static that accumulation of static electricity the causes phenomenon of setting fire, greatly increase the security of producing.
Embodiment
Below in conjunction with embodiment, illustrate the present invention.
Embodiment 1
First the UHMWPE resin of 55% weight is dried at 90 ℃ and within 4 hours, control moisture below 0.1%, the PP resin of 15% weight dries at 90 ℃ controls moisture for 4 hours below 0.1%, the self-control composite auxiliary for processing of 5% weight, the graphitized carbon black of 15% weight, the expanded graphite of 8% weight, primary antioxidant four (β-(3 of 0.3% weight, 5-di-tert-butyl-hydroxy phenyl) propionic acid) pentaerythritol ester (1010) and 0.3% auxiliary antioxidant three (2, 4-di-tert-butyl-phenyl) phosphorous acid ester (168), other auxiliary agents of 1.4% weight are mixed and from metering feeding device, are entered twin screw extruder after 2 minutes and plastify by high speed mixer, melting, again through extruding, cooling, cross magnetic, be packaged to be product.
Embodiment 2
First the UHMWPE resin of 84% weight is dried at 90 ℃ and within 4 hours, control moisture below 0.1%, the PP resin of 5% weight dries at 90 ℃ controls moisture for 4 hours below 0.1%, the self-control composite auxiliary for processing of 2% weight, the graphitized carbon black of 5% weight, the expanded graphite of 3% weight, primary antioxidant four (β-(3 of 0.1% weight, 5-di-tert-butyl-hydroxy phenyl) propionic acid) pentaerythritol ester (1010) and 0.1% auxiliary antioxidant three (2, 4-di-tert-butyl-phenyl) phosphorous acid ester (168), other auxiliary agents of 0.8% weight are mixed and from metering feeding device, are entered twin screw extruder after 2 minutes and plastify by high speed mixer, melting, again through extruding, cooling, cross magnetic, be packaged to be product.
Embodiment 3
First the UHMWPE resin of 70% weight is dried at 90 ℃ and within 4 hours, control moisture below 0.1%, the PP resin of 10% weight dries at 90 ℃ controls moisture for 4 hours below 0.1%, the self-control composite auxiliary for processing of 3% weight, the graphitized carbon black of 10% weight, the expanded graphite of 5.3% weight, primary antioxidant four (β-(3 of 0.3% weight, 5-di-tert-butyl-hydroxy phenyl) propionic acid) pentaerythritol ester (1010) and 0.4% auxiliary antioxidant three (2, 4-di-tert-butyl-phenyl) phosphorous acid ester (168), other auxiliary agents of 1% weight are mixed and from metering feeding device, are entered twin screw extruder after 2 minutes and plastify by high speed mixer, melting, again through extruding, cooling, cross magnetic, be packaged to be product.
Embodiment 4
The preparation method of the ultrahigh molecular weight polyethylene(UHMWPE) in embodiment 1-3 is as follows:
(1) raw-material processing and mixing
By UHMWPE resin and at 90 ℃, dry and within 4 hours, control moisture below 0.1%; PP resin dries 4 hours at 90 ℃, controls moisture below 0.1%;
Major ingredient and self-control composite auxiliary for processing, graphitized carbon black, expanded graphite, oxidation inhibitor, other auxiliary agents are mixed 2 minutes in high speed mixer, make the abundant dispersed with stirring of each component even;
(2) melt extrude
The material mixing is added in twin screw extruder, melt extrude temperature between 180-240 ℃, screw speed is 400 revs/min;
(3) granulation and aftertreatment
The material of extruding is carried out cooling, air-dry, pelletizing, crosses strong magnetic, is packaged to be finished product.
Embodiment 5
The performance of ultrahigh molecular weight polyethylene(UHMWPE) (UHMWPE) material embodiment 1 and embodiment 2 gained a kind of to static resistance and certain processing fluidity is as follows:
| Test event | Testing standard | Test condition | Embodiment 1 | Embodiment 2 |
| Proportion (g/cm3) | D792 | 23℃ | 0.98 | 0.97 |
| Tensile strength (Mpa) | D638 | 10mm/min | 41 | 40 |
| Elongation at break (%) | D638 | 10mm/min | 85 | 84 |
| Flexural strength (Mpa) | D790 | 2mm/min | 60 | 58 |
| Modulus in flexure (Mpa) | D790 | 2mm/min | 2000 | 1980 |
| Notched Izod impact strength (J/m) | D256 | 3.2mm,23℃ | 700 | 680 |
| Vicat softening temperature (℃) | D1525 | 1.8Mpa,6.4mm | 83 | 82 |
| Wear rating (%) | D3884 | 23℃ | 0.92 | 0.93 |
| Surface resistivity (Ω cm) | D257 | 23℃ | 10 2 | 10 2 |
In sum, be preferred embodiment of the present invention, all changes of having done according to technical solution of the present invention, when the function producing fails to exceed the scope of technical solution of the present invention, all belong to protection scope of the present invention.
Claims (9)
1. a superhigh molecular weight polyethylene material with static resistance and certain processing fluidity, is characterized in that composed of the following components by weight percentage:
。
2. a kind of superhigh molecular weight polyethylene material with static resistance and certain processing fluidity as claimed in claim 1, is characterized in that UHMWPE resin is that molecular weight is more than 1,500,000 polyvinyl resin, and its moisture content is below 0.1%.
3. a kind of superhigh molecular weight polyethylene material with static resistance and certain processing fluidity as claimed in claim 1, is characterized in that PP resin is acrylic resin, and MI is 10g/10min, and its moisture content is below 0.1%.
4. a kind of superhigh molecular weight polyethylene material with static resistance and certain processing fluidity as claimed in claim 1, is characterized in that making by oneself composite auxiliary for processing and is by maleic anhydride graft PP/ diatomite/glass microballon and mix at 100 ℃ of high mixers by 15/50/35 part by weight.
5. a kind of superhigh molecular weight polyethylene material with static resistance and certain processing fluidity as claimed in claim 1, is characterized in that graphitized carbon black is the carbon black with low resistance performance, can give material conduction or anti-static electrification.
6. a kind of superhigh molecular weight polyethylene material with static resistance and certain processing fluidity as claimed in claim 1, is characterized in that expanded graphite is Novel carbon material, has extremely strong specific conductivity.
7. a kind of superhigh molecular weight polyethylene material with static resistance and certain processing fluidity as claimed in claim 1, it is characterized in that oxidation inhibitor is phenolic antioxidant four [β-(3', 5'-di-t-butyl-4'-hydroxy phenyl) propionic acid] pentaerythritol ester and phosphite ester kind antioxidant (2,4-di-tert-butyl-phenyl) tris phosphite.
8. a kind of superhigh molecular weight polyethylene material with static resistance and certain processing fluidity as claimed in claim 1, is characterized in that other auxiliary agents are toner and brightener.
9. a kind of preparation method with the superhigh molecular weight polyethylene material of static resistance and certain processing fluidity as claimed in claim 1, is characterized in that comprising the following steps:
(1) raw-material processing and mixing
UHMWPE resin dries at 90 ℃ controls moisture for 4 hours below 0.1%; PP resin dries 4 hours at 90 ℃, controls moisture below 0.1%;
Major ingredient and self-control composite auxiliary for processing, graphitized carbon black, expanded graphite, oxidation inhibitor, other auxiliary agents are mixed 2 minutes in high speed mixer, make the abundant dispersed with stirring of each component even;
(2) melt extrude
The material mixing is added in twin screw extruder, melt extrude temperature between 180-240 ℃, screw speed is 400 revs/min;
(3) granulation and aftertreatment
The material of extruding is carried out cooling, air-dry, pelletizing, crosses strong magnetic, is packaged to be finished product.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104497403A (en) * | 2014-12-19 | 2015-04-08 | 上海邦中新材料有限公司 | Ultra-high molecular weight polyethylene composition |
| CN104530537A (en) * | 2015-01-08 | 2015-04-22 | 大连塑料研究所有限公司 | Manufacturing method and forming device of high-viscosity resin boards |
| CN105086085A (en) * | 2015-09-01 | 2015-11-25 | 南宁市聚祥塑料制品有限责任公司 | Conductive plastic bottle and preparation method thereof |
| CN107216517A (en) * | 2017-05-08 | 2017-09-29 | 衢州学院 | A kind of preparation method of ultra-high molecular weight polyethylene 3D printing consumptive material |
| CN110607014A (en) * | 2019-08-29 | 2019-12-24 | 福建师范大学 | Preparation method of high-strength high-toughness electromagnetic shielding composite material |
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| CN1560123A (en) * | 2004-03-12 | 2005-01-05 | 四川大学 | Composite of polyethylene with low viscosity ultra high moleculer weight and preparation process thereof |
| CN102432939A (en) * | 2011-11-07 | 2012-05-02 | 中国蓝星（集团）股份有限公司 | Antistatic flame-retardant ultra high molecular weight polyethylene composition and preparation method thereof |
-
2014
- 2014-06-19 CN CN201410276455.6A patent/CN104045898B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1560123A (en) * | 2004-03-12 | 2005-01-05 | 四川大学 | Composite of polyethylene with low viscosity ultra high moleculer weight and preparation process thereof |
| CN102432939A (en) * | 2011-11-07 | 2012-05-02 | 中国蓝星（集团）股份有限公司 | Antistatic flame-retardant ultra high molecular weight polyethylene composition and preparation method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104497403A (en) * | 2014-12-19 | 2015-04-08 | 上海邦中新材料有限公司 | Ultra-high molecular weight polyethylene composition |
| CN104497403B (en) * | 2014-12-19 | 2017-08-22 | 上海邦中新材料有限公司 | A kind of ultra-high molecular weight polyvinyl composite |
| CN104530537A (en) * | 2015-01-08 | 2015-04-22 | 大连塑料研究所有限公司 | Manufacturing method and forming device of high-viscosity resin boards |
| CN105086085A (en) * | 2015-09-01 | 2015-11-25 | 南宁市聚祥塑料制品有限责任公司 | Conductive plastic bottle and preparation method thereof |
| CN107216517A (en) * | 2017-05-08 | 2017-09-29 | 衢州学院 | A kind of preparation method of ultra-high molecular weight polyethylene 3D printing consumptive material |
| CN110607014A (en) * | 2019-08-29 | 2019-12-24 | 福建师范大学 | Preparation method of high-strength high-toughness electromagnetic shielding composite material |
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|---|---|
| CN104045898B (en) | 2016-06-01 |
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