CN101781420A - Method for extruding ultra-high molecular weight polyethylene product with flame retardant and antistatic properties - Google Patents
Method for extruding ultra-high molecular weight polyethylene product with flame retardant and antistatic properties Download PDFInfo
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- CN101781420A CN101781420A CN201010145089A CN201010145089A CN101781420A CN 101781420 A CN101781420 A CN 101781420A CN 201010145089 A CN201010145089 A CN 201010145089A CN 201010145089 A CN201010145089 A CN 201010145089A CN 101781420 A CN101781420 A CN 101781420A
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- molecular weight
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- retardant
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- 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
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
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- 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
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
-
- 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
- B29C48/397—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 a single screw
Abstract
The invention discloses a method for extruding an ultra-high molecular weight polyethylene product with flame retardant and antistatic properties, which is characterized by comprising the following steps: adding 100 parts of ultra-high molecular weight polyethylene resin the molecular weight of which is greater than or equal to 3800000, 15-25 parts of high-density polyethylene resin the molecular weight of which is 500000-700000, 2 parts of polyethylene wax, 1-2 parts of calcium stearate, 0.2-0.8 part of fluorine additive, 0.4 part of antioxidant, 30-35 parts of conductive carbon black powder and 30-32 parts of compound fire retardant into a single screw extruder for continuous extruding and forming, wherein the additives are kneaded in an internal mixer at 60-80 DEG C for 30-60 minutes, and then the additives and the polyethylene resin are added into the extruder. The compound fire retardant comprises decabromodiphenyl ether, antimony trioxide and ammonium polyphosphate (APP) in proportion of 10:5:1. The combination property of the product of the invention exceeds the existing coal industry standard (MT 558.1-2005), and the product is especially suitable to be used in the coal industry.
Description
Technical field
The present invention relates to a kind of extrusion method fire-retardant and ultra-high molecular weight polyethylene product, especially tubing antistatic property and sheet material that has.
Background technology
Ultrahigh molecular weight polyethylene(UHMWPE) (UHMWPE) tubing and sheet material is little with its frictional coefficient, abrasion are low, chemical proofing reach well shock-resistant, carrying capacity is high, frost resistance, heat retaining property, stress cracking resistance are good, outstanding advantages such as self lubricity, resistive connection dirt are arranged, be widely used in industries such as coal, automobile, chemical industry, food and papermaking.As corrosion-resistant, wear-resistant, HI high impact. low temperature resistant various component have in fields such as feed bin lining, chute, slideway liner plate, slide rail, carrying roller, fuel tanks very to be used widely.But, because ultrahigh molecular weight polyethylene(UHMWPE) is flammable and for electrical isolation, produce static sparking initiation fire or blast because of friction easily in the use of industries such as coal.
Coal industry is because static causes that the accident of gas explosion happens occasionally.China is world's first coal power, and coal production accounts for 30% of the world.As the main energy sources of China, coal accounts for more than 2/3 in China's Energy production and consumption structure always.The safety in production of coal resources is related to the sustainable and stable development of national economy and society, is related to the major issue of national energy security.The national coal industry standard of announcing in 2005 (MT 558.1-2005) and be that the performance index fire-retardant, antistatic products of matrix resin manufacturing can't thoroughly solve the potential safety hazard of coal industry reality in producing with PE100, PE80 at present, the fire-retardant and antistatic article of developing high performance ultrahigh molecular weight polyethylene(UHMWPE) has crucial meaning.
Existing auxiliary agent fire-retardant, antistatic ultra-high molecular weight polyethylene product mainly adopts carbon black and conventional flame retardant both at home and abroad at present, a kind of production method of anti-flaming tubular product is disclosed as number of patent application 200810231333.X, wherein adopt 100 parts of polyvinyl resin with super-high molecular weight (not indicating molecular weight), graphitized carbon black 5-10 part, decabromodiphenyl oxide 20-40 part, lime carbonate 4-8 part, aluminium sesquioxide 5-10 part, coupling agent 1-2 part; Number of patent application CN200510104289.2 discloses a kind of polyvinyl piping materials with high-molecular weight in mine and preparation method thereof, wherein adopt molecular weight 80-250 ten thousand polyvinyl resin with super-high molecular weight 60-70 parts, flame-retardant master batch 8-10 part, antistatic master batch 20-30 part, polyethylene wax 2-6 part; Number of patent application CN97121905.2 discloses a kind of PVC loading leg for mines and process for making thereof, wherein adopts High molecular weight polyethylene and nylon hybrid resin 74-79%, carbon fiber 10%, molybdenumdisulphide 5-7%, graphite 3%, fire retardant 1-5%, hot-forming production sheet material.These publications all do not provide the fire-retardant and antistatic data of goods.
On the low side at the comprehensive mechanical property index that exists in the present ultra-high molecular weight polyethylene product research and development, problem such as the surface conduction value is on the low side and the flaming combustion time is excessive, the corresponding measure that the present inventor takes: 1. select polyvinyl resin with super-high molecular weight and a small amount of extra high molecular amount high density polyethylene(HDPE) hybrid resin system more than 3,800,000, both can obtain higher mechanical property, help forming conductive network system preferably again; 2. on the basis of traditional bromide fire retardant, add expansion type flame retardant, reduced the flameless combustion time.
Summary of the invention
The objective of the invention is to provide a kind of and have fire-retardant and method for extruding ultra-high molecular weight polyethylene product antistatic property, it is characterized in that at the deficiencies in the prior art: following raw material is dropped into the single screw extrusion machine continuous extrusion,
100 parts of the polyvinyl resin with super-high molecular weight of molecular weight 〉=3,800,000
Molecular weight is high-density polyethylene resin 15-25 part of 50-70 ten thousand
2 parts of polyethylene waxs
Calcium stearate 1-2 part
Fluorine auxiliary agent 0.2-0.8 part
0.4 part in oxidation inhibitor
The graphitized carbon black powder 30-35 part that contains carbon black 54%
Composite flame-retardant agent 30-32 part
Wherein, earlier polyethylene wax, calcium stearate, fluorine auxiliary agent, oxidation inhibitor, graphitized carbon black powder and composite flame-retardant agent were mediated 30-60 minute down in 60-80 ℃ in Banbury mixer, add forcing machine with polyvinyl resin then, said composite flame-retardant agent is decabromodiphynly oxide, antimonous oxide and expansion type flame retardant ammonium polyphosphate (APP), and three's ratio is 10: 5: 1.
The addition of ammonium polyphosphate of the present invention accounts for the 1-2% of total prescription quality, and used expansion type flame retardant is single component expansion type flame retardant or mixed type expanding fire retardant.
Goods of the present invention are tubing or sheet material.
The present invention compared with prior art has following characteristics:
1. the collocation of a small amount of High molecular weight polyethylene and UHMWPE helps forming the formation of heterogeneous conductive network.
According to the literature, adopt inconsistent two-phase polymer, can reduce sooty loading level in compound-type conducting or the anti-electrostatic polymer effectively as matrix.Carbon black particle mainly is distributed in and reaches in the external phase in the phase interface zone, and the localized concentrations that this uneven distribution has caused carbon black particle to distribute helps carbon black and exceedes the formation of oozing network, and this is the basic reason that reduces excess effusion value with Polymer Blending System.The author utilizes the difference of UHMWPE and extra high molecular amount HDPE molecular weight, mobile difference; Utilize the difference of high density pre-treatment carbon powder liquid flowability and superelevation resin matrix flowability; Adopt the nearly solid phase of low shearing to flow, carbon black preferentially is dispersed in the extra high molecular weight northylen and is enriched in the interface zone of extra high molecular weight northylen and UHMWPE, so just helps forming more perfect conductive network, as shown in Figure 1.
2. conventional decabromodiphynly oxide/Sb
2O
3The compound flame retardant of+expansion type flame retardant (APP).
Through the screening of a large amount of cut-and-try works, the contriver has selected decabromodiphenyl oxide, Sb
2O
3And the compound flame retardant system of expansion type flame retardant (APP).Expansion type flame retardant is that what to develop in recent years is the fire retardant of main component with phosphorus, nitrogen, when the goods that contain this fire retardant were heated, the surface formed one deck dense foam charcoal layer, played heat insulation, oxygen barrier, pressed down cigarette, can prevent molten drop again, have good flame retardancy.The present invention's addition of fire retardant in implementation process is less and flame retardant effect is very obvious, and the ratio of three kinds of components is 10: 5: 1 in the fire retardant, and the addition of APP only accounts for the 1-2wt% of total prescription quality.
3. conductive agent and composite flame-retardant agent pressurize to mediate in banburying and help fire retardant and static inhibitor thorough mixing, can effectively prevent fire retardant to the goods external migration,
4. in the extrudate prescription, though fluorine processing aid consumption is less, it forms one deck dynamically lubricating layer gradually at material and screw rod, barrel and a mouthful intermode in the course of processing, played the drag reduction enhanced shine.
Description of drawings
Shown in Figure 1 is the conductive network that forms in the ultra-high molecular weight polyethylene product of the inventive method production.
Embodiment
Embodiment 1
Extruding continuously of the two anti-tubing of fire-retardant, the antistatic UHMWPE of diameter 62mm.Get 100 parts of molecular weight 3,800,000 UHMWPE (M3) resins; 25 parts of molecular weight 700,000 high-density polyethylene resins; (wherein the graphitized carbon black composite granule is 35 parts with graphitized carbon black/compound flame retardant mixed powder of mediating 10 minutes in advance in 60 ℃ of-80 ℃ of Banbury mixeies; 32 parts of compound flame retardants); 2 parts of polyethylene waxs, 2 parts of calcium stearates, 0.2 part of fluorine auxiliary agent, 0.4 part of B215 oxidation inhibitor add in the single screw extrusion machine together, extrude the two anti-tubing of UHMWPE of smooth in appearance such as minute surface.
Embodiment 2
Extruding continuously of fire-retardant, the antistatic UHMWPE tubing of diameter 227mm.Get 100 parts of molecular weight 3,800,000 UHMWPE (M3) resins; 20 parts of molecular weight 500,000 high-density polyethylene resins; (wherein the graphitized carbon black composite granule is 30 parts with graphitized carbon black/compound flame retardant mixed powder of mediating 10 minutes in advance in 60 ℃ of-80 ℃ of Banbury mixeies; 30 parts of compound flame retardants); 2 parts of polyethylene waxs, 2 parts of calcium stearates, 0.2 part of fluorine auxiliary agent, 0.4 part of B215 oxidation inhibitor add in the single screw extrusion machine together, extrude the two anti-tubing of UHMWPE of smooth in appearance such as minute surface.
Embodiment 3
Extruding continuously of the UHMWPE sheet material of fabric width 1000mm X 7mm.Get 100 parts of molecular weight 3,800,000 UHMWPE (M3) resins; 25 parts of molecular weight 500,000 high-density polyethylene resins; (wherein the graphitized carbon black composite granule is 35 parts with graphitized carbon black/compound flame retardant mixed powder of mediating 10 minutes in advance in 60 ℃ of-80 ℃ of Banbury mixeies; 32 parts of compound flame retardants); 2 parts of polyethylene waxs, 2 parts of calcium stearates, 0.2 part of fluorine auxiliary agent, 0.4 part of B215 oxidation inhibitor add in the single screw extrusion machine together, extrude the two anti-sheet materials of UHMWPE of smooth in appearance such as minute surface.
Embodiment 4
Adopt the formula system identical, just do not add APP, extrude UHMWPE pair of anti-tubing of smooth in appearance such as minute surface with embodiment 1.
Comparative Examples 1
Extruding continuously of the two anti-tubing of fire-retardant, the antistatic UHMWPE of diameter 62mm.Get 100 parts of molecular weight 3,800,000 UHMWPE (M3) resins; 25 parts of molecular weight 700,000 high-density polyethylene resins, 7.5 parts of high graphitized carbon blacks, 40 parts of decabromodiphynly oxides/antimonous oxide composite flame-retardant agent, 8 parts of nano-calcium carbonates, 10 parts of nano-aluminium oxides, titanic acid ester is 2 parts of coupling agents.With main ingredient thorough mixing in high-speed mixer, on the forcing machine identical, extrude diameter 62mm tubing with embodiment 1
The over-all properties of annex 1 above-mentioned five embodiment
The invention has the beneficial effects as follows:
The performance of resulting product and existing like product compare, and tensile strength improves 43%; Elongation at break improves 28 times-41 times; Aphlogistic flame retardant resistance differs 42 times.Because having adopted the polyvinyl resin with super-high molecular weight of 3,800,000 molecular weight is matrix resin, the molecular weight of goods is increased substantially, the frictional coefficient of polyvinyl resin with super-high molecular weight is little, abrasion are low, chemical proofing reach well shock-resistant, the carrying capacity performance is good, frost resistance, heat retaining property, stress cracking resistance are good, have advantages such as self lubricity, resistive connection dirt to be fully reflected.The over-all properties of fire-retardant and antistatic ultra-high molecular weight polyethylene product of the present invention surpasses the standard of relevant pair of anti-tubing goods in 2005 coal industry standard (MT 558.1-2005) comprehensively, be fit to very much the service requirements of coal industry, help to eliminate the potential safety hazard in the coal production, contribute for solving safe coal production.
The contrast of the present invention and prior art:
1. Pei Fang difference
| Component | The present invention's (weight part) | Prior art (weight part) |
| Polyvinyl resin with super-high molecular weight | ??100 | ??100 |
| The High molecular weight polyethylene resin | ??15-25 | |
| Graphitized carbon black | ??30-35 | ??5-10 |
| Decabromodiphynly oxide+Sb 2O 3+APP | ??16-32 | |
| Decabromodiphenyl oxide+Sb 2O 3+ lime carbonate | ??24-48 | |
| Polyethylene wax+oxidation inhibitor | ??2.4 | |
| Calcium stearate | ??1-2 | |
| The fluorine auxiliary agent | ??0.2-0.8 | |
| ??AL 2O 3 | ??5-10 | |
| Coupling agent | ??1-2 |
2. the difference of component
The present invention adopts the polyvinyl resin with super-high molecular weight of molecular weight 〉=3,800,000, and the molecular weight of polyvinyl resin with super-high molecular weight is lower in the prior art;
The present invention uses the High molecular weight polyethylene resin of molecular weight as 50-70 ten thousand, and its consumption is no more than 1/4 of polyvinyl resin with super-high molecular weight consumption, and prior art does not have this feature;
The present invention uses the fire retardant that contains expansion type flame retardant ammonium polyphosphate (APP), and wherein APP is as smoke suppressor, and its consumption accounts for the 1-2% of total prescription, and prior art adopts lime carbonate and AL
2O
3Make smoke suppressor, add up to consumption to account for the 6.66%-10.69% of total prescription; The present invention adopts the blending means of banburying kneading step by step to conduction and anti-flaming function auxiliary agent, and prior art just adopts simple blending means;
It is lubricant that the present invention adopts efficient fluorine processing aid, and its consumption accounts for the 0.2wt% of total prescription quality.
3. the difference of technology
The present invention makes material finish plasticizing and directly typing after entering extrusion die by control barrel and head processing temperature, does not use vacuum sizing equipment; Prior art need plastify the back and adopt vacuum sizing technology or hot press forming technology.Ultrahigh molecular weight polyethylene(UHMWPE) almost can not surveyed fusing point, if can plastify, and uses the vacuum suck sizing, illustrate resin in the course of processing degraded to the level of common HDPE.
Claims (3)
1. one kind has fire-retardant and method for extruding ultra-high molecular weight polyethylene product antistatic property, it is characterized in that: following raw material is dropped into the single screw extrusion machine continuous extrusion,
100 parts of the polyvinyl resin with super-high molecular weight of molecular weight 〉=3,800,000
Molecular weight is high-density polyethylene resin 15-25 part of 50-70 ten thousand
2 parts of polyethylene waxs
Calcium stearate 1-2 part
Fluorine auxiliary agent 0.2-0.8 part
0.4 part in oxidation inhibitor
The graphitized carbon black powder 30-35 part that contains carbon black 54%
Composite flame-retardant agent 16-32 part
Wherein, earlier polyethylene wax, calcium stearate, fluorine auxiliary agent, oxidation inhibitor, graphitized carbon black powder and composite flame-retardant agent were mediated 30-60 minute down in 60-80 ℃ in Banbury mixer, add forcing machine with polyvinyl resin then, said composite flame-retardant agent is decabromodiphynly oxide, antimonous oxide and expansion type flame retardant ammonium polyphosphate (APP), and three's ratio is 10: 5: 1.
2. method according to claim 1, wherein the addition of ammonium polyphosphate accounts for the 1-2% of total prescription quality, and used expansion type flame retardant is single component expansion type flame retardant or mixed type expanding fire retardant.
3. method according to claim 1, wherein said product is tubing or sheet material.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101450892A CN101781420B (en) | 2010-04-13 | 2010-04-13 | Method for extruding ultra-high molecular weight polyethylene product with flame retardant and antistatic properties |
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|---|---|---|---|
| CN2010101450892A CN101781420B (en) | 2010-04-13 | 2010-04-13 | Method for extruding ultra-high molecular weight polyethylene product with flame retardant and antistatic properties |
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| Publication Number | Publication Date |
|---|---|
| CN101781420A true CN101781420A (en) | 2010-07-21 |
| CN101781420B CN101781420B (en) | 2011-04-06 |
Family
ID=42521579
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410411A (en) * | 2011-08-25 | 2012-04-11 | 张家港联冠新材料有限公司 | Reinforced composite heat-preserving and heat-insulating ultrahigh molecular weight polyethylene pipe |
| CN102558641A (en) * | 2010-12-29 | 2012-07-11 | 山东东方管业有限公司 | Ultrahigh molecular weight polyethylene pipe with diameter of 800 millimeters and wall thickness of 35 millimeters and preparation method thereof |
| CN102617914A (en) * | 2012-04-01 | 2012-08-01 | 广东三凌塑料管材有限公司 | Polyethylene cable duct |
| CN103524851A (en) * | 2013-10-12 | 2014-01-22 | 浙江伟星新型建材股份有限公司 | Flame-retardant antistatic under-coal-mine mortar feed pipe and preparation method thereof |
| CN103819795A (en) * | 2014-02-28 | 2014-05-28 | 苏州瑞邦塑胶有限公司 | Flame retardation plastic cement particles |
| CN103831960A (en) * | 2012-11-22 | 2014-06-04 | 山东东方管业有限公司 | High-pressure-resistant ultrahigh-molecular-weight polyethylene composite bend and manufacturing method thereof |
| CN109159441A (en) * | 2018-08-06 | 2019-01-08 | 天津顺济德科技有限公司 | A kind of high-speed rail power distribution cabinet dummy plate method |
| CN109734986A (en) * | 2019-01-03 | 2019-05-10 | 福建师范大学 | A kind of high intensity is low to exceed infiltration UHMWPE/ superconduction Carbon Black Conductive Composite 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 |
| 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 |
| CN114957840A (en) * | 2021-12-07 | 2022-08-30 | 常州第六元素材料科技股份有限公司 | Graphene flame-retardant conductive polymer composite material for gas drainage pipe and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29719861U1 (en) * | 1997-11-11 | 1998-01-02 | Roechling Haren Kg | Flame retardant plastic material |
| CN1807495A (en) * | 2006-02-13 | 2006-07-26 | 单有才 | Alloy composite combustion-proof plate and its preparation method |
| CN1817950A (en) * | 2005-10-13 | 2006-08-16 | 刘阜东 | Polyvinyl piping materials with high-molecular weight in mine and production thereof |
| CN101012325A (en) * | 2007-02-02 | 2007-08-08 | 王好占 | Superhigh molecular weight polythene modified material and its preparing method and use |
| CN101250297A (en) * | 2008-03-26 | 2008-08-27 | 刘志远 | Nano ceramic super high molecular weight polyethylene modified material pipe and preparation method thereof |
-
2010
- 2010-04-13 CN CN2010101450892A patent/CN101781420B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29719861U1 (en) * | 1997-11-11 | 1998-01-02 | Roechling Haren Kg | Flame retardant plastic material |
| CN1817950A (en) * | 2005-10-13 | 2006-08-16 | 刘阜东 | Polyvinyl piping materials with high-molecular weight in mine and production thereof |
| CN1807495A (en) * | 2006-02-13 | 2006-07-26 | 单有才 | Alloy composite combustion-proof plate and its preparation method |
| CN101012325A (en) * | 2007-02-02 | 2007-08-08 | 王好占 | Superhigh molecular weight polythene modified material and its preparing method and use |
| CN101250297A (en) * | 2008-03-26 | 2008-08-27 | 刘志远 | Nano ceramic super high molecular weight polyethylene modified material pipe and preparation method thereof |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102558641A (en) * | 2010-12-29 | 2012-07-11 | 山东东方管业有限公司 | Ultrahigh molecular weight polyethylene pipe with diameter of 800 millimeters and wall thickness of 35 millimeters and preparation method thereof |
| CN102410411A (en) * | 2011-08-25 | 2012-04-11 | 张家港联冠新材料有限公司 | Reinforced composite heat-preserving and heat-insulating ultrahigh molecular weight polyethylene pipe |
| CN102617914A (en) * | 2012-04-01 | 2012-08-01 | 广东三凌塑料管材有限公司 | Polyethylene cable duct |
| CN102617914B (en) * | 2012-04-01 | 2014-07-09 | 广东三凌塑料管材有限公司 | Polyethylene cable duct |
| CN103831960A (en) * | 2012-11-22 | 2014-06-04 | 山东东方管业有限公司 | High-pressure-resistant ultrahigh-molecular-weight polyethylene composite bend and manufacturing method thereof |
| CN103524851A (en) * | 2013-10-12 | 2014-01-22 | 浙江伟星新型建材股份有限公司 | Flame-retardant antistatic under-coal-mine mortar feed pipe and preparation method thereof |
| CN103524851B (en) * | 2013-10-12 | 2016-01-20 | 浙江伟星新型建材股份有限公司 | A kind of underground coal mine feed pipe for mortar with flame-retardant and anti-static and preparation method thereof |
| CN103819795A (en) * | 2014-02-28 | 2014-05-28 | 苏州瑞邦塑胶有限公司 | Flame retardation plastic cement particles |
| CN109159441A (en) * | 2018-08-06 | 2019-01-08 | 天津顺济德科技有限公司 | A kind of high-speed rail power distribution cabinet dummy plate method |
| CN109734986A (en) * | 2019-01-03 | 2019-05-10 | 福建师范大学 | A kind of high intensity is low to exceed infiltration UHMWPE/ superconduction Carbon Black Conductive Composite 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 |
| CN114957840A (en) * | 2021-12-07 | 2022-08-30 | 常州第六元素材料科技股份有限公司 | Graphene flame-retardant conductive polymer composite material for gas drainage pipe and preparation method thereof |
| 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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| Publication number | Publication date |
|---|---|
| CN101781420B (en) | 2011-04-06 |
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