CN101760022A - Nylon 66 composition for petroleum sucker rod centralizer material - Google Patents
Nylon 66 composition for petroleum sucker rod centralizer material Download PDFInfo
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- CN101760022A CN101760022A CN200910172749A CN200910172749A CN101760022A CN 101760022 A CN101760022 A CN 101760022A CN 200910172749 A CN200910172749 A CN 200910172749A CN 200910172749 A CN200910172749 A CN 200910172749A CN 101760022 A CN101760022 A CN 101760022A
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Abstract
The invention relates to the polyamide composition field, particularly to a nylon 66 composition for a petroleum sucker rod centralizer material, the material is mainly used for producing injection-molding petroleum sucker rod centralizers. The material is prepared by the following raw materials(by weight proportion): 30-60% of nylon 66 slices, 5-15% of nylon 6 slices, 5-15% of compatibilzer, 0.1-0.7% of anti-oxidant, 0.5-1.5% of lubricating agent, 20-35% of fiber glass,0.1-0.5% of color master batch, and 0.1-0.7% of inorganic mineral. The preparation method is as follows: 1. weighing the above raw materials; 2. besides the glass fiber, adding materials into a high-mix machine for mixing; 3. adding the mixed raw materials into the glass fiber, and put putting the mixture into a twin screw extruder for extruding granulation. The beneficial effects of the invention are that: the product of the invention can continuously maintain the characteristics of high efficient lubrication, wear resistance and high temperature oxidation resistance at high temperature of 184 DEG C, thereby greatly improving thermal stability.
Description
Technical field
The present invention relates to polyamide composition field, particularly a kind of nylon 66 composition of petroleum sucker rod centralizer material, this material is mainly used in production injection moulding petroleum sucker rod centralizer.
Background technology
Polymeric amide is commonly called as nylon (Nylon), English name Polyamide (be called for short PA), be contain on the molecular backbone chain recurring amide radical group-[NHCO]-the thermoplastic resin general name.Comprise aliphatics PA, fat-aromatic series PA and aromatic series PA.Wherein, aliphatics PA is wide in variety, and output is big, is widely used, and its name is decided by the concrete carbonatoms of synthon.
Nylon is most important engineering plastics, and output ranks first in five big general engineering plastic, and nylon is that tynex (polyamide fibre) is a kind of saying. can be made into long fibre or short fiber.
Nylon is that a scientific research group under outstanding scientist's Tomas Carothers (Carothers) of the U.S. and the leader thereof develops, and is the first kind of synthon that occurs in the world.The appearance of nylon makes assuming an entirely new aspect of textiles, and the synthetic of it is the important breakthrough of synthetic fiber industry, also is an important milestone of polymer chemistry simultaneously.
Principal item in the nylon has nylon 66, accounts for absolute dominant position.Nylon 66 slice is a kind of thermoplastic polyester, has intensity height, wear-resisting, anti-solvent, an advantage such as self lubricity is good and the use temperature scope is wide, is purposes one of engineering plastics more widely.But also have the water-intake rate height, heat-drawn wire is low, and the shortcoming that modulus is low has limited its application.Usually adopt filling-modified method to improve its dimensional stability and raising rigidity, as use inorganics filled nylon 66 such as glass fibre, carbon fiber, kaolin, talcum can improve intensity, modulus, the thermotolerance of material, but caused particularly impelling strength decline of the strength of materials simultaneously, and, make the proportion of matrix material increase substantially because the loading level of inorganics is very big.
Because being used for production injection moulding petroleum sucker rod centralizer material, not only will to satisfy wear-resisting, heatproof, stretch-proof, impact good, and requirement condition is higher stricter, as at high temperature continue to keep efficient lubricated, therefore how to use nylon 66 materials such as grade to produce to have very high over-all properties, the material of anti-wear-resisting, high-temperature oxidation resistant and thermal stability is the matter of utmost importance that present this area faces.
Summary of the invention
Purpose of the present invention is improved according to prior art exactly, and provide a kind of and not only have high strength, wear resistance is good, oilness is good, chemical resistant properties, dimensional stability are good, also has the nylon 66 composition that continues to keep the petroleum sucker rod centralizer material of efficient lubricated, wear resistance, high-temperature oxidation resistant and thermal stability at high temperature for 184 ℃ down.
Technical scheme of the present invention is achieved in that
A kind of nylon 66 composition of petroleum sucker rod centralizer material, it contains nylon 66 slice, glass fibre, and characteristics are that it also contains nylon 6 slice, compatilizer, oxidation inhibitor, lubricant, inorganic mineral, look mother, and the mass percent of each component is as follows:
Nylon 66 slice 30～60%
Nylon 6 slice 5～15%
Compatilizer 5～15%
Oxidation inhibitor 0.1～0.7%
Lubricant 0.5～1.5%
Glass fibre 20～35%
Look mother 0.1～0.5%
Inorganic mineral 0.1～0.7%
Its preparation method may further comprise the steps:
The first step: take by weighing above-mentioned described raw material by above-mentioned quality proportioning;
Second step: except that glass fibre, other raw materials were put into high-speed mixer and mixing 2～3 minutes;
The 3rd step: then raw materials mixed is added glass fibre and put into twin screw extruder, the rotating speed during twin screw extruder work is 200～460 rev/mins, 200～300 ℃ of temperature, extruding pelletization.
Technical scheme of the present invention can be achieved in that a kind of nylon 66 composition of petroleum sucker rod centralizer material, and the relative viscosity of described nylon 66 slice is 2.5～2.7.
Technical scheme of the present invention can also be achieved in that a kind of nylon 66 composition of petroleum sucker rod centralizer material, and described compatilizer is the terpolymer EP rubber grafting.
Technical scheme of the present invention can also be achieved in that a kind of nylon 66 composition of petroleum sucker rod centralizer material, and described oxidation inhibitor is 1098 and 168 composite.
Technical scheme of the present invention can also be achieved in that a kind of nylon 66 composition of petroleum sucker rod centralizer material, and described lubricant is metallic soap of stearic acid class or fatty acid acyl amine or above-mentioned both are composite.Described metallic soap of stearic acid class is barium stearate or calcium stearate or lead stearate or Zinic stearas.Described fatty acid acyl amine is TAF or EBS.
Technical scheme of the present invention can also be achieved in that a kind of nylon 66 composition of petroleum sucker rod centralizer material, and described glass fibre is the alkali free glass fibre that handled through silane coupling agent-KH560 on its surface.
Technical scheme of the present invention can also be achieved in that a kind of nylon 66 composition of petroleum sucker rod centralizer material, described inorganic mineral be kaolin or/and mica powder or/and molybdenumdisulphide.
Nylon 6 slice works to reconcile composition viscosity, adds the easily demoulding of back, and outward appearance smooth finish is good.The molecular formula of nylon 6 is [NH-(CH
2)
5-CO]
n-, be translucent or opaque oyster white crystallization shape polymkeric substance.Heat decomposition temperature is greater than 300 ℃, and equilibrium water absorption 3.5% has good wear resistance, self lubricity and solvent resistance.Density (g/cm
3) be 1.14～1.15, fusing point (℃) be 215～225, tensile strength is (MPa)＞60.0, elongation (%)＞30, flexural strength (MPa) 90.0, notched Izod impact strength (KJ/m
2)＞5, in industrial production, be widely used in and make that bearing, various roller, pulley, pump impeller, screw, nut, pad, sealing-ring, oil resistant container, flexible pipe, cable sheath, shears pulley sleeve, electromagnetic distribution valve seat, cold furnishings are equipped with, various transition pipeline, piston, rope, pulley belt on liner, retainer, automobile and the tractor, and daily necessities and packaging film etc.
The terpolymer EP rubber grafting has improved the consistency of nylon 66, nylon 6, glass fibre and inorganic mineral in the composition as compatilizer, has improved article impact intensity, makes product that good weathering resistance be arranged.Terpolymer EP rubber is the terpolymer of ethene, propylene and non-conjugated diene hydrocarbon, and 1963 begin to commercially produce, and terpolymer EP rubber is called for short: EPDM.Diolefine has special structure, has only the ability copolymerization of one of two keys, and undersaturated pair of key mainly is as the interlinkage place.Another is undersaturated can not to become main polymer chain, only can become the avris chain.The main polymer chain of terpolymer EP rubber is fully saturated.This characteristic makes terpolymer EP rubber can resist heat, light, oxygen, especially ozone.Terpolymer EP rubber is non-polar in essence, and polar solvent and chemicals are had erosion-resistant ability, and water-intake rate is low, has the good insulation performance characteristic.Because terpolymer EP rubber belongs to polyolefine family, it has fabulous vulcanization characteristics.In the middle of all rubber, it has minimum proportion.It can absorb a large amount of fillers and oil and influencing characteristic is little.Therefore can the cheap rubber compound of cost of manufacture.
Oxidation inhibitor is 1098 and 168 composite, can improve the stability of nylon processing, can avoid color and luster, performance to change.Oxidation inhibitor 1098, chemical name: N, two [3-(3,5)-di-tert-butyl-hydroxy phenyl] the propionyl quadrols of N-, molecular formula: C
40H
64O
4N
2, molecular weight: 636.96, physico-chemical property: be dissolved in methyl alcohol and chloroform, be slightly soluble in toluene, water-soluble hardly, volatility is low, does not pollute, anti-extraction nontoxicity.Chemical index: outward appearance is white or off-white color, the crystalline solid powder, and main content 〉=99%, fusing point: 155～160 ℃, ash≤0.1%, fugitive constituent≤0.3%; Characteristic and purposes: oxidation inhibitor 1098 is phenols high performance universal oxidation inhibitor, do not pollute, nondiscoloration, anti-extraction, heat-resisting oxidation, anti-extraction, nontoxicity, be mainly used in the polymkeric substance such as nylon 6, nylon 66, polyethylene, polypropylene polymeric amide, polystyrene, ABS resin, urethane and rubber, also can be used the raising antioxygen property with auxiliary antioxidant.
Oxidation inhibitor 168, chemical name: three [2.4-di-tert-butyl-phenyl] phosphorous acid ester, molecular formula is C
42H
63O
3P is dissolved in methylene dichloride, chloroform, toluene, benzene, is slightly soluble in acetone, water-soluble hardly and methyl alcohol, and pure substance content 〉=99%, outward appearance is white free-pouring powder, odorlessness, melting range is: 183～186 ℃, density: 1.03g/cm
3, tap density: 0.48～0.57g/cm
3, flash-point: 257 ℃, burning-point: 380 ℃, pH value: 6, nontoxic, nonflammable, non-explosive, burn into excellent storage stability not.It is well behaved antioxidant, is widely used in polyethylene, polypropylene, polyoxymethylene, ABS resin, PS resin, PVC, engineering plastics, adhesive, rubber and petroleum products etc.In the product polymerization, make or final operational phase all can be added.
The look mother satisfies the demand the color of nylon 66 composition of the petroleum sucker rod centralizer of production.
Lubricant is metallic soap of stearic acid class or fatty acid acyl amine or above-mentioned both are composite, and lubricant plays the effect that prevents that glass fibre from exposing.The metallic salt of higher fatty acid (being commonly called as metallic soap) is a kind of in the conventional lubricants.Except that having lubrication, or the PVC thermo-stabilizer.Saponified for a certain metal, the carbochain of institute's bonded lipid acid is long more, and its oilness is good more.Commonly used have calcium stearate, Zinic stearas, lead stearate, a barium stearate etc., and wherein the oilness of lead stearate is best.
The fatty acid amide veriety is numerous, and such has, and toxicity is low, biological degradability good, and many advantages such as skin irritation, abundant raw material, processing be not easy are already in many fields widespread uses such as weaving, makeup, food, plastics, papermaking, timber.They can be used as emulsifying agent, suds-stabilizing agent, stain remover, lubricant, softening agent for fibres, textile auxiliary, static inhibitor, softening agent, antisticking agent, releasing agent, foodstuff additive, sanitas and rust-preventive agent etc.
TAF is a kind of amides product of brand new, is particularly useful for resins such as PA, PBT, particularly more shows its good melting in the glass enhancing modified, and oilness is excellent and to the covering property (anti-exposing) and the surface-brightening of glass.White or faint yellow particle and Powdered, fusing point 〉=135 ℃, weight loss on heating≤0.5% (WT), color and luster≤5.0 (Gardner), acid number≤15.0koh mg/g, total amine value≤10.0koh mg/g, thermal weight loss (%WT) 250 ℃≤1.8,300 ℃≤4.2,344 ℃≤5.5.
The vinyl bis-stearamides also claims ethylene bis stearamide (EBS).Another name: ethylene bis stearamide, chemical name: N, N '-hexamethylene bis-stearamides, N, N-ethylene bis stearamide, English name: N, N-Ethylene Bis-stearamide, chemical formula: C
38H
76N
2O
2This compound is hard and crisp white high melting-point wax, its industrial goods are for being slightly yellowy fine particle, nontoxic, human body is had no side effect, be insoluble to most of solvents under the normal temperature, stable to soda acid and water medium, can be dissolved in the chlorinated hydrocarbons and the aromatic hydrocarbon solvent of heat, its meal soapy feeling is stronger, more than 80 ℃ glassware for drinking water is had wetting properties.Ethylene bis stearamide, it is the novel plastic lubricant that grows up recent years, be widely used in the PVC goods, ABS, high-impact polystyrene, polyolefine, rubber, in the forming process of plastics, it and traditional lubricant such as paraffin, polyethylene wax, lubricants such as stearate are compared, not only has good external lubrication effect, and has a good internal lubrication effect, make plastic shaping improve molten flowability and release property in processing every plastics, thereby improved the output of plastic working, reduced energy consumption, and made goods obtain high any surface finish, smoothness.This product, owing in its molecular structure, contain two amide group-C-NH-, thereby this product makes plastics have static electricity resistance preferably after adding plastics, makes plastics be difficult for " dust suction " and dirty.This valuable good characteristic is to being used for household electrical appliances and meter case and numerous engineering plastic products is even more important, and as lubricant, this product and other lubricant and usefulness have very significant synergy.Improve other composition, as tinting material, weighting agent dispersibility in plastics.
Alkali free glass fibre, handled through silane coupling agent KH560 on its surface, handles the consistency that can improve nylon 6 slice, inorganic mineral and nylon 66 slice later like this, has greatly improved the intensity and the dimensional stability of nylon resin.
Use 6 sections of inorganic mineral filled nylon-6, can improve flowability, wear resistance and the oilness of product, inorganic mineral can be for kaolin or/and mica powder or/and molybdenumdisulphide.
The invention has the beneficial effects as follows: product strength height of the present invention, wear resistance is good, self lubricity is good, chemical resistant properties, dimensional stability are good, also have under 184 ℃ of high temperature the characteristics that continue to keep efficient lubricated, wear resistance, high-temperature oxidation resistant, thermal stability has obtained very big improvement.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail:
Embodiment 1
Get raw material PA66 section 50g, the PA6 5.7g that cuts into slices, terpolymer EP rubber grafting 12g, oxidation inhibitor is 1098 and 168 composite, and 1098 is 0.35g, and 168 is 0.35g, calcium stearate 1.1g, glass fibre 30g, look female 0.1g, molybdenumdisulphide 0.4g except that glass fibre, puts into high mixer with other raw materials and mixed 3 minutes, then raw materials mixed is added glass fibre and put into twin screw extruder, screw rod machine rotating speed is 200 rev/mins, and processing temperature is 260 ℃, extruding pelletization.
Embodiment 2
Get raw material PA66 section 48g, the PA6 9g that cuts into slices, terpolymer EP rubber grafting 9g, oxidation inhibitor is 1098 and 168 composite, and 1098 is 0.2g, and 168 is 0.2g, barium stearate 1.0g, glass fibre 32g, look female 0.1g, kaolin 0.5g except that glass fibre, puts into high mixer with other raw materials and mixed 2.5 minutes, then raw materials mixed is added glass fibre and put into twin screw extruder, screw rod machine rotating speed is 230 rev/mins, and processing temperature is 240 ℃, extruding pelletization.
Embodiment 3
Get raw material PA66 section 52g, the PA6 6.1g that cuts into slices, terpolymer EP rubber grafting 10g, oxidation inhibitor is 1098 and 168 composite, and 1098 is 0.3g, and 168 is 0.3g, TAF 1.1g, glass fibre 30g, look female 0.1g, mica powder 0.1g except that glass fibre, puts into high mixer with other raw materials and mixed 2 minutes, then raw materials mixed is added glass fibre and put into twin screw extruder, screw rod machine rotating speed is 430 rev/mins, and processing temperature is 280 ℃, extruding pelletization.
Embodiment 4
Get raw material PA66 section 54.6g, the PA6 12g that cuts into slices, terpolymer EP rubber grafting 9g, oxidation inhibitor is 1098 and 168 composite, and 1098 is 0.3g, and 168 is 0.3g, calcium stearate 0.5g, EBS0.5g, glass fibre 22g, look female 0.1g, molybdenumdisulphide 0.35g, kaolin 0.35g, except that glass fibre, other raw materials are put into high mixer mixed 3 minutes, then raw materials mixed is added glass fibre and put into twin screw extruder, screw rod machine rotating speed is 300 rev/mins, and processing temperature is 210 ℃, extruding pelletization.
Glass fibre described in the foregoing description 1～4 is that handled through silane coupling agent-KH560 on its surface, and the relative viscosity of described nylon 66 slice is 2.5～2.7.
Make the performance comparison such as the following table of sample 1, sample 2, sample 3, sample 4 and refreshing horse engineering plastics same use product according to embodiment 1, embodiment 2, embodiment 3, embodiment 4:
| Project | Sample 1 | Sample 2 | Sample 3 | Sample 4 | Refreshing horse engineering plastics |
| Tensile strength (MPa) | ??155 | ??165 | ??155 | ??165 | ??150 |
| Flexural strength (MPa) | ??210 | ??240 | ??210 | ??240 | ??200 |
| Composite bending modulus (MPa) | ??7500 | ??8000 | ??7500 | ??8000 | ??7480 |
| Notched Izod impact strength (KJ/m 2) | ??25 | ??25 | ??25 | ??25 | ??23 |
| High temperature resistant (℃) | ??184 | ??185 | ??180 | ??183 | ??70 |
As can be seen from the above table, it is more superior than refreshing horse engineering plastics on high temperature resistant and two kinds of performances of flexural strength that the present invention makes product, improved 110 ℃ especially on resistance to elevated temperatures.
Claims (9)
1. the nylon 66 composition of a petroleum sucker rod centralizer material, it contains nylon 66 slice, glass fibre, it is characterized in that: it also contains compatilizer, oxidation inhibitor, lubricant, nylon 6 slice, inorganic mineral, look mother, and the mass percent of each component is as follows:
Nylon 66 slice 30～60%
Nylon 6 slice 5～15%
Compatilizer 5～15%
Oxidation inhibitor 0.1～0.7%
Lubricant 0.5～1.5%
Glass fibre 20～35%
Look mother 0.1～0.5%
Inorganic mineral 0.1～0.7%
Its preparation method may further comprise the steps:
The first step: take by weighing above-mentioned described raw material by above-mentioned quality proportioning;
Second step: except that glass fibre, other raw materials were put into high-speed mixer and mixing 2～3 minutes;
The 3rd step: then raw materials mixed is added glass fibre and put into twin screw extruder, the rotating speed during twin screw extruder work is 200～460 rev/mins, 200～300 ℃ of temperature, extruding pelletization.
2. the nylon 66 composition of petroleum sucker rod centralizer material according to claim 1, it is characterized in that: the relative viscosity of described nylon 66 slice is 2.5～2.7.
3. the nylon 66 composition of petroleum sucker rod centralizer material according to claim 1, it is characterized in that: described compatilizer is the terpolymer EP rubber grafting.
4. the nylon 66 composition of petroleum sucker rod centralizer material according to claim 1 is characterized in that: described oxidation inhibitor is 1098 and 168 composite.
5. the nylon 66 composition of petroleum sucker rod centralizer material according to claim 1 is characterized in that: described lubricant is metallic soap of stearic acid class or fatty acid acyl amine or above-mentioned both are composite.
6. the nylon 66 composition of petroleum sucker rod centralizer material according to claim 5, it is characterized in that: described metallic soap of stearic acid class is barium stearate or calcium stearate or lead stearate or Zinic stearas.
7. according to the nylon 66 composition of claim 5 or 6 described petroleum sucker rod centralizer materials, it is characterized in that: described fatty acid acyl amine is TAF or EBS.
8. the nylon 66 composition of petroleum sucker rod centralizer material according to claim 1 is characterized in that: the alkali free glass fibre that described glass fibre was handled through silane coupling agent-KH560 for the surface.
9. the nylon 66 composition of petroleum sucker rod centralizer material according to claim 1 is characterized in that: described inorganic mineral be kaolin or/and mica powder or/and molybdenumdisulphide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101727493A CN101760022B (en) | 2009-11-27 | 2009-11-27 | Nylon 66 composition for petroleum sucker rod centralizer material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101727493A CN101760022B (en) | 2009-11-27 | 2009-11-27 | Nylon 66 composition for petroleum sucker rod centralizer material |
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| Publication Number | Publication Date |
|---|---|
| CN101760022A true CN101760022A (en) | 2010-06-30 |
| CN101760022B CN101760022B (en) | 2012-04-18 |
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| CN103497509A (en) * | 2013-09-12 | 2014-01-08 | 缪军 | Engineering plastic for automobile parts |
| CN103525083A (en) * | 2013-09-27 | 2014-01-22 | 惠州市昌亿新材料有限公司 | Reinforced toughened aging-resistant PA kaoline composite material and preparation method and application thereof |
| CN105062061A (en) * | 2015-09-11 | 2015-11-18 | 无锡市长安曙光手套厂 | Textile material and preparation method thereof |
| CN105419320A (en) * | 2015-11-19 | 2016-03-23 | 东莞市众一新材料科技有限公司 | High glass fiber filled and reinforced nylon composite and preparation method thereof |
| CN106046775A (en) * | 2016-06-06 | 2016-10-26 | 淮南曹庵润龙塑业有限公司 | Easily molding nylon mold material and preparation method thereof |
| CN106084430A (en) * | 2016-08-18 | 2016-11-09 | 洛阳国润新材料科技股份有限公司 | A kind of preparation technology of ultra-high molecular weight polyethylene oil pumping rod centering device |
| CN106366652A (en) * | 2016-08-29 | 2017-02-01 | 安徽省康利亚股份有限公司 | High-temperature-resistant and wear-resistant nylon cable material for coal mine cable and preparation method of high-temperature-resistant wear-resistant nylon cable material |
| CN106401501A (en) * | 2016-11-30 | 2017-02-15 | 李党生 | Multifunctional pipe and rod protection device and manufacturing method thereof |
| CN108485253A (en) * | 2018-05-08 | 2018-09-04 | 厦门倍斯通塑胶科技有限公司 | A kind of nylon composite materials and preparation method thereof |
| CN111187512A (en) * | 2019-12-31 | 2020-05-22 | 宁波伊德尔新材料有限公司 | Flame-retardant wear-resistant scratch-resistant PA66 composite material and preparation method thereof |
| CN112324392A (en) * | 2020-10-20 | 2021-02-05 | 东营市三和石油装备有限公司 | Semi-coated sucker rod spraying material and using method thereof |
| WO2021087577A1 (en) * | 2019-11-08 | 2021-05-14 | Cobalt Extreme Pty Ltd | Equipment for mining |
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| CN103497509A (en) * | 2013-09-12 | 2014-01-08 | 缪军 | Engineering plastic for automobile parts |
| CN103525083A (en) * | 2013-09-27 | 2014-01-22 | 惠州市昌亿新材料有限公司 | Reinforced toughened aging-resistant PA kaoline composite material and preparation method and application thereof |
| CN103525083B (en) * | 2013-09-27 | 2017-01-04 | 惠州市集和光电科技有限公司 | A kind of activeness and quietness aging-resistant PA kaoline composite material and its preparation method and application |
| CN105062061A (en) * | 2015-09-11 | 2015-11-18 | 无锡市长安曙光手套厂 | Textile material and preparation method thereof |
| CN105419320A (en) * | 2015-11-19 | 2016-03-23 | 东莞市众一新材料科技有限公司 | High glass fiber filled and reinforced nylon composite and preparation method thereof |
| CN106046775A (en) * | 2016-06-06 | 2016-10-26 | 淮南曹庵润龙塑业有限公司 | Easily molding nylon mold material and preparation method thereof |
| CN106084430B (en) * | 2016-08-18 | 2018-06-08 | 洛阳国润新材料科技股份有限公司 | A kind of preparation process of ultra-high molecular weight polyethylene oil pumping rod centering device |
| CN106084430A (en) * | 2016-08-18 | 2016-11-09 | 洛阳国润新材料科技股份有限公司 | A kind of preparation technology of ultra-high molecular weight polyethylene oil pumping rod centering device |
| CN106366652A (en) * | 2016-08-29 | 2017-02-01 | 安徽省康利亚股份有限公司 | High-temperature-resistant and wear-resistant nylon cable material for coal mine cable and preparation method of high-temperature-resistant wear-resistant nylon cable material |
| CN106401501A (en) * | 2016-11-30 | 2017-02-15 | 李党生 | Multifunctional pipe and rod protection device and manufacturing method thereof |
| CN106401501B (en) * | 2016-11-30 | 2017-12-26 | 李党生 | Multi-functional tube rod protection device and its manufacture method |
| CN108485253A (en) * | 2018-05-08 | 2018-09-04 | 厦门倍斯通塑胶科技有限公司 | A kind of nylon composite materials and preparation method thereof |
| WO2021087577A1 (en) * | 2019-11-08 | 2021-05-14 | Cobalt Extreme Pty Ltd | Equipment for mining |
| CN111187512A (en) * | 2019-12-31 | 2020-05-22 | 宁波伊德尔新材料有限公司 | Flame-retardant wear-resistant scratch-resistant PA66 composite material and preparation method thereof |
| CN111187512B (en) * | 2019-12-31 | 2022-07-08 | 宁波伊德尔新材料有限公司 | Flame-retardant wear-resistant scratch-resistant PA66 composite material and preparation method thereof |
| CN112324392A (en) * | 2020-10-20 | 2021-02-05 | 东营市三和石油装备有限公司 | Semi-coated sucker rod spraying material and using method thereof |
| CN113527878A (en) * | 2021-08-17 | 2021-10-22 | 河南海瑞祥科技有限公司 | Low-friction-coefficient and wear-resistant material, preparation method thereof and sucker rod centralizer |
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|---|---|
| CN101760022B (en) | 2012-04-18 |
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