CN101058651A - Formulation for super high molecular weight polythene article and preparation method thereof - Google Patents
Formulation for super high molecular weight polythene article and preparation method thereof Download PDFInfo
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- CN101058651A CN101058651A CN 200610039727 CN200610039727A CN101058651A CN 101058651 A CN101058651 A CN 101058651A CN 200610039727 CN200610039727 CN 200610039727 CN 200610039727 A CN200610039727 A CN 200610039727A CN 101058651 A CN101058651 A CN 101058651A
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Abstract
The invention discloses a super high molecular weight polyethylene (UHMWPE) product-as the dispense and the method preparing for the pipe materials and the sheet materials, which comprises the following parts: 92%-97% super high molecular weight polyethylene resin, 2-7. 5% lubricant, 0. 05%-0. 7% nuclearyer, 0. 01%-0. 4% rheology processing adjuvant. The method comprises the following steps: adding the every composition meter mixture to a helical rotor force out machine designed according to the approaching fusible point concept; forcing out at 100-200DEG C; plasticizing the materials in the die and cooling, congealing in the shape procedure after preheating the materials; producing the continuously stabilizing UHMWPE pipe materials with 2. 5 million molecular weight and 50-200mm diameter or the sheet materials with (5-20)X500 dimension. The invention can be applied in a plurality of trades and fields.
Description
Technical field
The present invention relates to a kind of prescription and working method thereof of thermoplastic macromolecule material goods, particularly a kind of goods molecular weight is at the ultra-high molecular weight polyethylene product more than 2,500,000---as the prescription and the preparation method of ultrahigh molecular weight polyethylene tubing and sheet material.
Background technology
Ultrahigh molecular weight polyethylene(UHMWPE) (UHMWPE) was at first succeeded in developing with Z-type catalyst by U.S. Unichem in nineteen fifty-seven.This is a kind of simple linear polymer, and molecular weight is usually 1,000,000-5,000,000, degree of crystallinity 65-85%, density 0.92-0.96g/cm
3Compare with numerous polymer materialss, UHMWPE has the advantages that frictional coefficient is little, abrasion are low, chemical proofing is good, but also has good characteristics such as shock-resistant, resistance to pressure, frost resistance, heat retaining property, self lubricity, anti-fouling tendency, stress cracking resistance, wholesomeness.These good characteristics make UHMWPE tubing have important practical value.Be called " the novel thermoplasticity engineering materials that emerges rapidly ", in various fields, have important practical value.
The UHMWPE molecular weight is up to millions of, and the unordered entanglement of extraordinary molecule interchain makes its molecule segment to the thermal motion delay of response, shows as melt viscosity up to 10
8Pas, mobile extreme difference, critical shear rate is extremely low in addition, easily produce shortcomings such as melt fracture, make it be difficult to carry out machine-shaping with conventional processing of plastic technology, serious restriction the application of UHMWPE, become the hot subject of material educational circles and industrial community joint exploration since the eighties.
In current Modification of UHMWPE research and product application report, the low-molecular-weight relatively in a large number HDPE of interpolation (high density polyethylene(HDPE)) modification is arranged; And add LCP (liquid crystalline polymers), PI (polymeric amide) modification; Even the product that adds a large amount of hollow glass micropearl modifications is arranged, the abrasion performance value of some of them product can reach the level of pure ultra-high molecular mass polyethylene, but but is difficult to be called ultrahigh molecular weight polyethylene tubing truly.Because depending on the performance of supra polymer flow characteristic strongly, such superelevation tubing, wear-resisting wiping, wear hardness, stress crack resistance performance, self-lubricating property, surperficial mar-proof performance etc. all can reduce along with the rapid decline of molecular weight.Produced the foremost Ticona of ultrahigh molecular weight polyethylene(UHMWPE) company in 2003 at that time in the world the UHMWPE tubing goods that China can collect are detected, conclusion is that China's UHMWPE tubing goods molecular weight does not on the market surpass 500,000.No matter so adopt the processing characteristics of what method modified ultra-high molecular weight polyethylene, whether the molecular weight of final superelevation tubing can remain on higher level, should be one of most important criterion of modification success or not, this point should cause concern in actual applications especially.
Summary of the invention
The present invention for overcome UHMWPE tubing, sheet material extrusion molding and be difficult to process and the course of processing in molecular weight descend significantly and cause the problem of superelevation characteristic forfeiture, provide a kind of novel, according to prescription of the ultra-high molecular weight polyethylene product of nearly fusing point theory preparation and preparation method thereof, can produce molecular weight at the goods more than 2,500,000---as tubing and sheet material.
The concrete technical scheme that the present invention adopts is: the prescription of described ultra-high molecular weight polyethylene product is characterized in: comprise following component, and the weight percent of each component is:
Polyvinyl resin with super-high molecular weight: 92～97,
Lubricant: 2～7.5,
Nucleator: 0.05～0.7,
Rheology process auxiliary agent: 0.01～0.4.
The molecular weight of above-mentioned ultrahigh molecular weight polyethylene(UHMWPE) (UHMWPE) is not less than 3,000,000, and can select the product of the molecular weight of second auxiliary factory, Beijing production 3,000,000-4,500,000 (being the M3-M4 type) for use.
Above-mentioned lubricant is the solid lubricant of boiling point more than processing temperature,, molybdenumdisulphide cured as polymer, graphite, calcium stearate, silicoorganic compound etc. or their mixture; The existence of minor amounts of lubricants can make above-mentioned UHMWPE resin under high temperature, high load condition, and frictional coefficient obviously descends.
Above-mentioned nucleator is a mineral-type as the mixture of one or more in silicon-dioxide, zeolite, kaolin or organic class such as sorbyl alcohol (DBS), the aryl phosphate ester salt (TMP), and the particle diameter of nucleator is not more than 50 μ m.Use nucleator can improve percent crystallization in massecuite, can improve the physicochemical property of product.
Above-mentioned rheology process auxiliary agent is the processing aid of fluorochemical class---as the Dyanmar PPA auxiliary agent of Minnesota Mining and Manufacturing Company's production, the addition of rheology process auxiliary agent is very little among the present invention, but the existence of this auxiliary agent, can be in the course of processing between machine barrel, screw rod and mouthful metallic surface, mould place and material, form one deck dynamically lubricating film, play and reduce the effect of extruding resistance, cutting down the consumption of energy, improving product surface smooth finish.
Preparation method of the present invention is: join thorough mixing in the mixing machine after described each component metering is mixed, then mixture is joined in the screw extrusion press by nearly fusing point theory design, under the effect of screw rod, mixture advances forward in barrel while being heated, material fusion in mould through preheating, through typing section cooled and solidified, finally form the ultra-high molecular weight polyethylene product of continous-stable.In process of production, can be with mixture in the screw extrusion press extrude heating and temperature control at 100 ℃-200 ℃.
Advantage of the present invention is: can prepare molecular weight and be not less than 2,500,000 ultra-high molecular weight polyethylene product---as tubing and sheet material, and the diameter of UHMWPE tubing can reach 50mm～200mm, and the size of sheet material can reach (5-20) * 500mm.The goods of producing can be used for weaving, papermaking,, numerous areas such as packing, transportation, machinery, chemical industry, mining, oil, agricultural, building, electric, food, medical treatment, physical culture and Refrigeration Technique, now be listed as follows:
| Application Areas | Application example | Characteristic |
| Pipeline | Wheat, flour, rice, solids transfer limes such as cereal, coal and various breeze, the slurries transfer lime, the mine drainage pipe, cleaning shaft, mine grouting filling pipe, flue tube, power plant's ash releasing tube, breeze and metallurgical kerosene waste residue transfer lime, husky (sand) stone, cement, transfer limes such as lime, oil product, gas conveying tube, industrial chemicals, waste gas, waste water, the transfer lime of waste residue, heating tube etc. | Self lubricity, wear resistance, erosion resistance, crushing resistance, environmental stress crack resistance |
| Equipment lining | The lining of equipment such as the hopper of article such as coal, cement, ore, sand, salt, cereal, granulated sugar, feed bin, storage tank, chute etc. | Self lubricity, wear resistance |
| Container | Open type jar, liner, floating drum, pneumatic thickener, water receiving tank, aerial tank, plate shaped container, cooling tower body etc. | Erosion resistance, environmental stress crack resistance, crushing resistance |
| Transport Machinery | Guide rail, travelling belt, transport unit slide block, retaining plate, flow production line timing star-wheel etc. | Wear resistance, shock-resistance, self lubricity, non-viscosity |
| Food machinery | Star wheel, send bottle with count screw rod, filling machine bearing, grab a bottle machine part, make the bolt machine, control stick, mincer part, packing ring, pilot pin, guide rail, cylinder, gear, roller, sprocket wheel, handle etc. | Wholesomeness, self lubricity, wear resistance, noise reduction |
| Building machinery agricultural machine | Dozer ejector dozer lining, power shovel scraper bowl liner, from defective truck railway carriage or compartment liner, tractor colter liner etc. | Self lubricity, wear resistance, shock-resistance, |
| Chemical machinery | Valve body, the pump housing, packing ring, filler, strainer, gear, bolt, nut, sealing-ring, nozzle, cock, axle sleeve etc. | Wear resistance, chemical proofing, |
| Common mechanical | Slide unit etc. is cheated in various gears, bearing shell, bearing, lining, sliding panel, clutch coupling, guider, stopper, hinge, rocking handle, flexible coupling, roller, support roller, fastening piece, lifting | Self lubricity, wear resistance, shock-resistance, |
| Stationery sports goods | Ski lining, snow mobile, rink paving, rink fender bracket, soarer ground plate, bowling etc. | Self lubricity, wear resistance, winter hardiness, |
| Health care | Heart valve, orthopedics's part, joint prosthesis, birth control implant, artificial limb | Physiology inertia, wear resistance |
| Other | The masking shield of Refrigerating Machinery, nuclear power station, ship components, butcher's's cutting board, hammer, gypsum, electroplated component, very low temperature mechanical component etc. | Winter hardiness, radioresistance, wholesomeness, insulativity, wear resistance |
Embodiment
The invention will be further described below by specific embodiment, but the present invention should not only limit to following embodiment.
Embodiment 1:
Get the M3 type UHMWPE resin that 97% second auxiliary factory, Beijing produces, 2.8% lubricant stearic acid calcium, 0.13% nucleator silicon-dioxide, 0.07% rheology process auxiliary agent, the content of above-mentioned each component is all calculated by weight percentage, to join thorough mixing in the mixing machine after the above-mentioned each component metering mixing, mixture is joined in the single screw extrusion machine that designs by nearly fusing point theory, extrusion temperature is 100-200 ℃, in screw rod, advance, in the mould fusion, through a typing section cooled and solidified, the final molecular weight that can produce continous-stable according to the mould of selecting for use surpasses 2,500,000 UHMWPE tubing or sheet material and profiled material through the material of preheating.
Embodiment 2:
Get the M3 type UHMWPE resin that 96% second auxiliary factory, Beijing produces, 3.5% lubricant molybdenum dioxide, 0.45% nucleator sorbyl alcohol (DBS), 0.05% rheology process auxiliary agent, the content of above-mentioned each component is all calculated by weight percentage, to join thorough mixing in the mixing machine after the above-mentioned each component metering mixing, mixture is joined in the single screw extrusion machine that designs by nearly fusing point theory, extrusion temperature is 100-200 ℃ and advances in screw rod, through the material of preheating in the mould fusion, through typing section cooled and solidified, the molecular weight that the mould that final basis is selected for use can be produced continous-stable surpasses 2,500,000 UHMWPE tubing or sheet material and profiled material.
Embodiment 3:
Get the M4 type UHMWPE resin that 93% second auxiliary factory, Beijing produces, the cured composite lubricant of 6.1% calcium stearate and polymer, 0.55% silicon-dioxide and the composite nucleator of aryl phosphate ester salt (TMP), 0.35% rheology process auxiliary agent, the content of above-mentioned each component is all calculated by weight percentage, to join thorough mixing in the mixing machine after the above-mentioned each component metering mixing, mixture is joined in the single screw extrusion machine that designs by nearly fusing point theory, extrusion temperature is 100-200 ℃ and advances in screw rod, through the material of preheating in the mould fusion, through typing section cooled and solidified, the molecular weight that the mould that final basis is selected for use can be produced continous-stable surpasses 2,500,000 UHMWPE tubing or sheet material and profiled material.
Rheology process auxiliary agent in the various embodiments described above is the Dyanmar PPA processing aid that LCP liquid crystalline polymers or Minnesota Mining and Manufacturing Company produce.
Claims (8)
1, the prescription of ultra-high molecular weight polyethylene product is characterized in that: comprise following component, and the weight percent of each component is:
Polyvinyl resin with super-high molecular weight: 92～97,
Lubricant: 2～7.5,
Nucleator: 0.05～0.7,
Rheology process auxiliary agent: 0.01～0.4.
2, prescription according to claim 1 is characterized in that: the molecular weight of described ultrahigh molecular weight polyethylene(UHMWPE) is not less than 3,000,000.
3, prescription according to claim 1 and 2 is characterized in that: described lubricant is the solid lubricant of boiling point more than the processing temperature of producing ultra-high molecular weight polyethylene product.
4, prescription according to claim 3 is characterized in that: described lubricant is that polymer is cured, one or more the mixture in molybdenumdisulphide, graphite, calcium stearate or the silicoorganic compound.
5, prescription according to claim 1 and 2 is characterized in that: described nucleator is one or more the mixture in silicon-dioxide, zeolite, kaolin, sorbyl alcohol or the aryl phosphate ester salt, and the particle diameter of nucleator is not more than 50 μ m.
6, prescription according to claim 1 and 2 is characterized in that: described rheology process auxiliary agent is the processing aid of fluorochemical class.
7, a kind of method for preparing the described ultra-high molecular weight polyethylene product of claim 1, it is characterized in that: join thorough mixing in the mixing machine after described each component metering is mixed, then mixture is joined in the screw extrusion press by nearly fusing point theory design, under the effect of screw rod, mixture advances forward in barrel while being heated, through material fusion in mould of preheating,, finally form the ultra-high molecular weight polyethylene product of continous-stable through typing section cooled and solidified.
8, method according to claim 7 is characterized in that: mixture extrudes heating and temperature control at 100 ℃-200 ℃ in screw extrusion press.
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101713949A (en) * | 2008-09-30 | 2010-05-26 | Ntn株式会社 | Transfer charger and image forming apparatus |
| CN101831096A (en) * | 2010-03-31 | 2010-09-15 | 汤阴县超贝工程设备有限公司 | Method for manufacturing modified high-molecular polythene wear-resistant tubing |
| CN103012905A (en) * | 2011-09-22 | 2013-04-03 | 中国石油化工股份有限公司 | Colored polyethylene composition and colored polyethylene sheet material |
| CN103112173A (en) * | 2012-12-28 | 2013-05-22 | 江苏金波新材料科技有限公司 | Preparation method of composite fiber-winding reinforcing pipe material |
| CN103192569A (en) * | 2013-04-20 | 2013-07-10 | 青岛中科昊泰新材料科技有限公司 | Ultra-high molecular weight polyethylene composite board |
| CN103672197A (en) * | 2013-12-24 | 2014-03-26 | 贵州蓝图新材料有限公司 | Ultra-high molecular weight polyethylene mining delivery pipe through multi-layer coextrusion method and manufacturing method thereof |
| CN102165003B (en) * | 2008-09-30 | 2014-04-23 | Ntn株式会社 | Electrically conductive polyethylene resin composition, electrically conductive polyethylene resin molding, sliding bearing and sliding sheet |
| 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 |
| CN104004253A (en) * | 2014-05-12 | 2014-08-27 | 漯河科莱堡洁具配件有限公司 | High-molecular-weight polymer nucleating agent-modified ultrahigh-molecular-weight polyethylene blend material |
| US8822231B2 (en) | 2008-04-16 | 2014-09-02 | Johnson & Johnson Ab | Assay method and device |
| CN104033604A (en) * | 2013-03-08 | 2014-09-10 | 中国原子能科学研究院 | Sealing device for gamma detector in water |
| CN106977792A (en) * | 2017-04-21 | 2017-07-25 | 河南省金航工程塑料有限公司 | A kind of ultra-high molecular weight polyethylene skates |
| CN106977791A (en) * | 2017-04-21 | 2017-07-25 | 河南省金航工程塑料有限公司 | A kind of ultra-high molecular weight polyethylene emulates slab |
| 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 |
| CN107459701A (en) * | 2017-09-27 | 2017-12-12 | 中玺新材料（安徽）有限公司 | A kind of preparation method of modified ultra-high molecular weight polyethylene material |
| CN108047533A (en) * | 2017-12-12 | 2018-05-18 | 四川国鑫机械制造有限公司 | Wear-resisting backing plate for steel-track transport steering rack and preparation method thereof |
| CN111154164A (en) * | 2020-01-14 | 2020-05-15 | 中国石油大学(北京) | Preparation method of ultrahigh molecular weight polyethylene composite material and product thereof |
| CN113895063A (en) * | 2021-08-24 | 2022-01-07 | 德州起源塑料制品有限公司 | Processing method of simulation ice board |
| CN114214886A (en) * | 2022-01-19 | 2022-03-22 | 山东科元塑业有限公司 | Pressure bearing plate for coal mine and manufacturing method thereof |
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2006
- 2006-04-18 CN CN 200610039727 patent/CN101058651A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8822231B2 (en) | 2008-04-16 | 2014-09-02 | Johnson & Johnson Ab | Assay method and device |
| CN101713949A (en) * | 2008-09-30 | 2010-05-26 | Ntn株式会社 | Transfer charger and image forming apparatus |
| CN102165003B (en) * | 2008-09-30 | 2014-04-23 | Ntn株式会社 | Electrically conductive polyethylene resin composition, electrically conductive polyethylene resin molding, sliding bearing and sliding sheet |
| CN101713949B (en) * | 2008-09-30 | 2014-06-25 | Ntn株式会社 | Transfer charger and image forming apparatus |
| CN101831096A (en) * | 2010-03-31 | 2010-09-15 | 汤阴县超贝工程设备有限公司 | Method for manufacturing modified high-molecular polythene wear-resistant tubing |
| CN101831096B (en) * | 2010-03-31 | 2011-11-16 | 汤阴县超贝工程设备有限公司 | Method for manufacturing modified high-molecular polythene wear-resistant tubing |
| CN103012905A (en) * | 2011-09-22 | 2013-04-03 | 中国石油化工股份有限公司 | Colored polyethylene composition and colored polyethylene sheet material |
| CN103012905B (en) * | 2011-09-22 | 2015-03-18 | 中国石油化工股份有限公司 | Colored polyethylene composition and colored polyethylene sheet material |
| 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 |
| CN103112173A (en) * | 2012-12-28 | 2013-05-22 | 江苏金波新材料科技有限公司 | Preparation method of composite fiber-winding reinforcing pipe material |
| CN104033604B (en) * | 2013-03-08 | 2016-05-04 | 中国原子能科学研究院 | Sealing device for gamma detector in water |
| CN104033604A (en) * | 2013-03-08 | 2014-09-10 | 中国原子能科学研究院 | Sealing device for gamma detector in water |
| CN103192569A (en) * | 2013-04-20 | 2013-07-10 | 青岛中科昊泰新材料科技有限公司 | Ultra-high molecular weight polyethylene composite board |
| CN103672197A (en) * | 2013-12-24 | 2014-03-26 | 贵州蓝图新材料有限公司 | Ultra-high molecular weight polyethylene mining delivery pipe through multi-layer coextrusion method and manufacturing method thereof |
| CN103672197B (en) * | 2013-12-24 | 2016-06-15 | 贵州蓝图新材料股份有限公司 | Multi-layer co-extruded mining conveying pipe of ultra-high molecular weight polyethylene and preparation method thereof |
| CN104004253B (en) * | 2014-05-12 | 2016-09-14 | 漯河科莱堡洁具配件有限公司 | Heavy polymer nucleater modified super-high molecular weight polythene blending material |
| CN104004253A (en) * | 2014-05-12 | 2014-08-27 | 漯河科莱堡洁具配件有限公司 | High-molecular-weight polymer nucleating agent-modified ultrahigh-molecular-weight polyethylene blend material |
| CN106977792A (en) * | 2017-04-21 | 2017-07-25 | 河南省金航工程塑料有限公司 | A kind of ultra-high molecular weight polyethylene skates |
| CN106977791A (en) * | 2017-04-21 | 2017-07-25 | 河南省金航工程塑料有限公司 | A kind of ultra-high molecular weight polyethylene emulates slab |
| 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 |
| CN107459701A (en) * | 2017-09-27 | 2017-12-12 | 中玺新材料（安徽）有限公司 | A kind of preparation method of modified ultra-high molecular weight polyethylene material |
| CN108047533A (en) * | 2017-12-12 | 2018-05-18 | 四川国鑫机械制造有限公司 | Wear-resisting backing plate for steel-track transport steering rack and preparation method thereof |
| CN111154164A (en) * | 2020-01-14 | 2020-05-15 | 中国石油大学(北京) | Preparation method of ultrahigh molecular weight polyethylene composite material and product thereof |
| CN111154164B (en) * | 2020-01-14 | 2022-02-08 | 中国石油大学(北京) | Preparation method of ultrahigh molecular weight polyethylene composite material and product thereof |
| CN113895063A (en) * | 2021-08-24 | 2022-01-07 | 德州起源塑料制品有限公司 | Processing method of simulation ice board |
| CN113895063B (en) * | 2021-08-24 | 2024-01-16 | 德州起源塑料制品有限公司 | Method for processing simulated ice plate |
| CN114214886A (en) * | 2022-01-19 | 2022-03-22 | 山东科元塑业有限公司 | Pressure bearing plate for coal mine and manufacturing method thereof |
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Open date: 20071024 |