CN101696290A - High-lubrication wear-resisting polyolefin material, high-lubrication wear-resisting polyolefin pipe and preparation method thereof - Google Patents
High-lubrication wear-resisting polyolefin material, high-lubrication wear-resisting polyolefin pipe and preparation method thereof Download PDFInfo
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Abstract
The invention relates to a high-lubrication wear-resisting polyolefin material, a high-lubrication wear-resisting polyolefin pipe and a preparation method thereof, belonging to the field of plastic pipeline processing. The invention aims to provide the high-lubrication wear-resisting polyolefin material and the high-lubrication wear-resisting polyolefin pipe prepared by utilizing the material. The high-lubrication wear-resisting polyolefin material comprises the following components in parts by weight: 80-90 parts of polyolefin and 1-20 parts of polyoxyethylene. Due to the adoption of the wearing-resisting pipe, compared with that of the traditional polyolefin pipe, the friction coefficient and the wear loss of the high-lubrication wear-resisting polyolefin pipe are reduced by 30-50 percent. The high-lubrication wear-resisting polyolefin material approaches the friction wearing performance of ultra high molecular weight polyethylene and can still maintain good mechanical property. The invention has simple processing and convenient construction and opens a new way for the technical field of wearing-resistant pipes.
Description
Technical field
The present invention relates to the poly-polyolefine material of high-lubrication wear-resisting and use the high-lubrication wear-resisting polyolefin pipe of this material preparation and their preparation method, belong to the plastic conduit manufacture field.
Background technology
Pipeline is mainly used in three aspects: (1) bulk material is carried; (2) slurry is carried; (3) gaseous fluid is carried.Delivery medium is the problem that tubing in use can't be avoided to the frictional wear of pipeline, and especially in bulk material and slurry course of conveying, delivery medium is the most serious to the wearing and tearing of tubing, the work-ing life of greatly having reduced tubing.The tubing that preparation has high transport capacity, high-wear resistance is pressing for of solid and slurry conveying, becomes the focus and the difficult point of piping study and application.So far, existing multiple wear-resisting pipe is used: (1) iron-based high-chromium abrasion-proof cast iron multiple-unit tube: this pipeline had both had the antiwear characteristic of wear-resisting iron pipe, had the toughness of common steel tube again.But weight is too big, and installation and transportation difficulty, price are comparatively expensive, and not corrosion-resistant, and application is restricted.(2) wear resisting steel plastic composite: with the common steel tube is the pressure-bearing skeleton, is wearing layer with the plastics or the rubber of special formulation, and running resistance is little, and is corrosion-resistant.Defectives such as but it is insecure to exist plastic layer or rubber layer and steel pipe to fit, and flange place rubber is difficult for handling, and transition is not slick and sly, the whole degumming phenomenon of normal appearance in application.(3) ceramic composite steel pipe adopts " from the synthetic centrifuging process of climing combustion high temperature " technology manufacturing to form, and has that wear resistance is strong, combined shaping is firm, pipeline is light, construction install convenience.But complete processing is comparatively complicated, tooling cost is higher, and unresolved good joint sealing problem of while is used and popularization is subjected to certain limitation.
Wu Nian, Liu Ping, Wu Jing, Liu Ning, Wang Dexi, the new development of ultrahigh molecular weight polyethylene tubing extrusion technology, plastics, 2000,4 (29): 11-14 has introduced superhigh molecular weight polyethylene pipe, and CN 1696185A discloses a kind of nano-silicon modified rubber ultrahigh molecular weight polyethylene(UHMWPE) and its production and use; CN 101344198A discloses a kind of ultrahigh molecular weight polyethylene abrasion-proof pipe.The superhigh molecular weight polyethylene pipe frictional coefficient is low, be 0.07-0.11, wear resistance is 6-8 a times of common steel tube, the 4-7 of stainless steel tube doubly, the 4-6 of PVC engineering plastics pipe doubly can be widely used in the defeated industrial circle of slurry collection such as mine, petrochemical complex, electric power oil gas, coal, metallurgical coking, brine disposal, desilting engineering, sewage disposal.UHMWPE tubing has obtained to use widely with its remarkable performance.But because the UHMWPE molecular weight is high, the random entanglement of macromole interchain makes its melt viscosity up to 10
8Pas, mobile extreme difference, critical shear rate is low, is easy to generate melt fracture, makes its processing difficulties, and the pipe connection difficulty can not adopt hot fusion welding method to connect, and has caused certain difficulty for the pipeline site operation.Its raw material of while and tooling cost height, the UHMWPE raw material is high more than about 6000 yuan/ton than common PE; When the preparation pipe, UHMWPE needs to use with other expensive properties-correcting agent (as liquid crystal polymer, silicon rubber etc.) blend usually, thereby has increased the cost of UHMWPE pipe greatly.
Zhang Yuchuan, the domestic and international technical development new trend of plastic conduit [II], plastics, 2008,4 (37): 59-61 discloses the domestic and international technical development new trend of plastic conduit, plastics tubing inner wall smooth (coefficientoffriction of polyethylene tube=0.20), and the pressure-losses of comparing fluming water with metal tube is little by 30%, under same transport capacity state, caliber can reduce 20%.Plastic tube wall is less scaling, the cumulative phenomenon of build-up of pressure loss with the increase of working life can not occur.Under the identical condition of identical bore, transfer pressure, the throughput ratio concrete pipe and the metal tube of plastics tubing are all big, can use the less pipeline of bore with the plastics tubing conveyance fluid to a certain extent, thereby reduce construction volume and economical with materials.Simultaneously, the energy consumption of production plastics tubing is far smaller than the energy consumption of producing steel pipe.Plastic conduit also has in light weight, non-corrosive, non-scaling, hygienic quality, does not have pipeline secondary pollution in addition, that labour intensity is installed is low, and saves distinct advantages such as construction comprehensive cost, is good wear-resisting pipe therefore, is used widely.But because its frictional coefficient is higher, wear away greatlyyer, need further its friction and wear behavior of raising.
Vertical the above, need now development cost cheap, be easy to construct, process simple and the good wear-resistant plastic pipe of friction and wear behavior.
Summary of the invention
The objective of the invention is at the bigger characteristics of existing plastics tubing abrasion, a kind of high-lubrication wear-resisting polyolefin material is provided and utilizes the wear-resisting pipe of polyolefine of this material preparation.
For achieving the above object, technical scheme of the present invention is: the wear-resisting pipe of polyolefine that adopts the high-lubrication wear-resisting polyolefin material preparation.High-lubrication wear-resisting polyolefin material wherein of the present invention is to add polyoxyethylene in polyolefine, and wherein the weight proportion of polyolefine and polyoxyethylene is:
80～99 parts of polyolefine
1～20 part of polyoxyethylene.
Except that specified otherwise, raw material umber of the present invention is parts by weight.
Wherein said polyolefine can be polyethylene, polypropylene etc.Preferably polyethylene.
Wherein said polyethylene is with～CH
2～be the unitary new LDPE (film grade) of repeating structure, medium-density polyethylene, high density polyethylene(HDPE) and ultrahigh molecular weight polyethylene(UHMWPE), described polypropylene is with～CH
2(CH
3Unitary homo-polypropylene of)～be repeating structure or co-polypropylene.
Described polyoxyethylene is with～CH
2-CH
2-O～be that repeating structure is unitary, molecular weight is 20,000 to 7,000,000 peo resin.Polyoxyethylene is a kind of macromolecular material of high-crystallinity, low, the good water solubility of fusing point, nontoxic, when convey materials, moisture in the slurry can penetrate into the living heat of polyoxyethylene layer or material and pipe friction melts polyoxyethylene, form one deck " viscous sublayer " on the pipeline top layer, thereby significantly reduce the frictional coefficient and the wear loss of pipeline.Document does not also have the report of polyoxyethylene modified poly ethylene now.
In order further to reduce frictional coefficient and the wear loss and the raw materials cost of material, can add 0.1～20 part mineral filler.Described mineral filler can be selected wherein one or more mixture such as glass microballon, talcum powder, MCA, molybdenumdisulphide usually for use.It is that 10-20 μ m is good that glass microballon is selected particle diameter.
In order to prevent the oxidative degradation in the course of processing of polyolefine and polyoxyethylene, need in raw material, to add a certain amount of oxidation inhibitor.
The recipe ingredient of described high-lubrication wear-resisting polyolefin material is calculated by weight to:
80～99 parts of polyolefine
1～20 part of polyoxyethylene
0.01～1 part in polyolefine oxidation inhibitor
0.01～1 part in polyoxyethylene oxidation inhibitor.
Preferably, the recipe ingredient of described high-lubrication wear-resisting polythene material is calculated by weight to:
90～99 parts of polyolefine
1～10 part of polyoxyethylene
2～8 parts of mineral fillers
0.1～0.5 part in polyolefine oxidation inhibitor
0.1～0.5 part in polyoxyethylene oxidation inhibitor.
More excellent is that the recipe ingredient of described high-lubrication wear-resisting polyolefin material is calculated by weight to:
95～99 parts of polyolefine
1～5 part of polyoxyethylene
3～5 parts of mineral fillers
0.3 part in polyolefine oxidation inhibitor
0.3 part in polyoxyethylene oxidation inhibitor.
Polyolefine oxidation inhibitor is meant phenolic antioxidant, as antioxidant 1010, and antioxidant 264 etc., described polyoxyethylene oxidation inhibitor is meant as ureas, imidazoles and piperazines oxidation inhibitor.As thiocarbamide, N-acyl group-N ' alkyl thiourea, 2-coloured glaze base benzoglyoxaline, piperazine etc.
The preparation process of above-mentioned high-lubrication wear-resisting polyolefin material is as follows: after polyolefine, polyoxyethylene, mineral filler (if employing), oxidation inhibitor (polyolefine oxidation inhibitor, polyoxyethylene oxidation inhibitor) are mixed, extrude in 170～220 ℃ of melt blendings of temperature, obtain having the wear-resistant self-lubricating polythene material.
The preparation process of high-lubrication wear-resisting polyolefin pipe is as follows: the high-lubrication wear-resisting polyolefin material of above-mentioned preparation is extruded the high-lubrication wear-resisting polyolefin pipe under 170～240 ℃ in pipe extruder.According to the needs of practical situation, simultaneously also in order to save cost, can be in the following way: it be raw material that the internal layer of described polyolefin pipe adopts high-lubrication wear-resisting polyolefin, and outer to adopt common tubing class polyolefin be the raw material extrusion moulding; Or outer be raw material with high-lubrication wear-resisting polyolefin, it is the raw material extrusion moulding that internal layer adopts common tubing class polyolefin; Sometimes, as required, ectonexine all adopts with wear-resistant polyolefin and obtains the high-lubrication wear-resisting polyethylene tube for the raw material extrusion moulding.
The key property of wear-resisting pipe is frictional coefficient and wear loss.If the material that uses has lower frictional coefficient and wear loss to transmission medium, also have concurrently simultaneously good processing characteristics, resistance to impact shock, environmental stress cracking resistivity, characteristics such as high corrosion resistance, weather resisteant, resistance to deterioration, then can prepare the wear-resisting pipe of excellent performance.
Mineral filler can further reduce the frictional coefficient of material and the raw materials cost of wear loss and material when improving material stiffness; By the consistency between process for modifying surface increase mineral filler and polyolefine and the polyoxyethylene, can improve the mechanical property of material.
Characteristics of the present invention are to utilize polymkeric substance crystalline substance/brilliant blend principle, by polyoxyethylene and polyolefine melt blending, preparation has the polyolefine/polyoxyethylene intermingling material of multiple dimensioned blend crystal structure, it can effectively stop polyolefine to contact with slipping plane, increases polyolefinic oilness and wear resistance.Simultaneously, have high mineral filler lubricated and wear resisting property by further interpolation and can further reduce the frictional coefficient of material and the raw materials cost of wear loss and material, prepare mechanical property, friction and wear behavior is good, cheap high-lubrication wear-resisting polyolefin material.By the high-lubrication wear-resisting polyolefin material of above-mentioned preparation prepare further that processing is simple, quick construction high-lubrication wear-resisting polyolefin pipe easily.
The present invention has following advantage:
1, the friction and wear behavior of material is good.
Utilize polyoxyethylene and mineral filler modified polyolefin, frictional coefficient and the wear loss 30-50% that can descend near the friction and wear behavior of ultrahigh molecular weight polyethylene(UHMWPE), can also keep excellent mechanical property, can prepare high performance wear-resistant polyolefin pipe.
2, pipeline is with low cost.
Though the polyoxyethylene price is comparatively expensive, addition is less, also has cheap inorganics to insert in addition, and overall cost rises little.
3, processing is simple, does not need to change existing polyolefin pipe production unit and technology.
Present technique is with after polyolefine and the material modified blend granulation, directly by the polyolefin pipe processing units, and preparation wear resistant polyethylene pipe, technology is simple, need not change the production unit and the production technique of existing polyolefin pipe.
4, construction simple and fast.
Because the matrix resin of present technique is a polyolefine, therefore can implement site operation, construction simple and fast by existing polyolefine arrangement and method for construction (as welding etc.).
Embodiment
High-lubrication wear-resisting polyolefin material provided by the invention is meant that the raw material polyolefine adds a certain amount of polyoxyethylene outward again.Described polyoxyethylene is with～CH
2-CH
2-O～be that repeating structure is unitary, molecular weight is 20,000 to 7,000,000.Polyoxyethylene is a kind of macromolecular material of high-crystallinity, low, the good water solubility of fusing point, nontoxic, when convey materials, moisture in the slurry can penetrate into the living heat of polyoxyethylene layer or material and pipe friction melts polyoxyethylene, form one deck " viscous sublayer " on the pipeline top layer, thereby significantly reduce the frictional coefficient and the wear loss of pipeline.
Wherein the weight proportion of polyolefine and polyoxyethylene is:
80～99 parts of polyolefine
1～20 part of polyoxyethylene.
Wherein said polyolefine can be polyethylene, polypropylene etc.With～CH
2～be the unitary new LDPE (film grade) of repeating structure, medium-density polyethylene, high density polyethylene(HDPE) and ultrahigh molecular weight polyethylene(UHMWPE); Or with～CH
2(CH
3Unitary homo-polypropylene of)～be repeating structure or co-polypropylene.
In order further to reduce frictional coefficient and the wear loss and the raw materials cost of material, can add 0.1～20 part mineral filler.Described mineral filler can be selected wherein one or more mixture such as glass microballon, talcum powder, MCA, molybdenumdisulphide usually for use.It is that 10-20 μ m is good that glass microballon is selected particle diameter.
As an embodiment of the invention, polyolefine adopts polyethylene.The recipe ingredient of high-lubrication wear-resisting polythene material is calculated by weight to:
80～99 parts of polyethylene
1～20 part of polyoxyethylene
0.01～1 part in polyethylene oxidation inhibitor
0.01～1 part in polyoxyethylene oxidation inhibitor.
Alkene agent 0 polyethylene oxidation inhibitor is meant phenolic antioxidant, as antioxidant 1010, and antioxidant 264 etc., described polyoxyethylene oxidation inhibitor is meant as ureas, imidazoles and piperazines oxidation inhibitor.As thiocarbamide, N-acyl group-N ' alkyl thiourea, 2-coloured glaze base benzoglyoxaline, piperazine etc.
Preferred scheme is:
90～99 parts of polyethylene
1～10 part of polyoxyethylene
2～8 parts of mineral fillers
0.1～0.5 part in polyethylene oxidation inhibitor
0.1～0.5 part in polyoxyethylene oxidation inhibitor.
More excellent is:
95～99 parts of polyethylene
1～5 part of polyoxyethylene
3～5 parts of mineral fillers
0.3 part in polyethylene oxidation inhibitor
0.3 part in polyoxyethylene oxidation inhibitor.
The preparation method of the above-mentioned high-lubrication wear-resisting polyolefin material of the present invention is: after polyolefine, polyoxyethylene, mineral filler (if employing), stablizer are mixed, extrude in 170～220 ℃ of melt blendings of temperature, obtain having the wear-resistant self-lubricating polythene material.
The preparation method of high-lubrication wear-resisting polyolefin pipe of the present invention is: the high-lubrication wear-resisting polyolefin material of above-mentioned preparation is extruded the high-lubrication wear-resisting polyolefin pipe under 170～240 ℃ in pipe extruder.According to the needs of practical situation, simultaneously also in order to save cost, can be in the following way: it be raw material that the internal layer of described polyolefin pipe adopts high-lubrication wear-resisting polyolefin, and outer to adopt common tubing class polyolefin be raw material; Or outer be raw material with high-lubrication wear-resisting polyolefin, it is raw material that internal layer adopts common tubing class polyolefin; Sometimes, as required, it is that raw material is extruded the high-lubrication wear-resisting polyolefin pipe that ectonexine all adopts with wear-resistant polyolefin.
The key property of wear-resisting pipe is frictional coefficient and wear loss.If the material that uses has lower frictional coefficient and wear loss to transmission medium, also have concurrently simultaneously good processing characteristics, resistance to impact shock, environmental stress cracking resistivity, characteristics such as high corrosion resistance, weather resisteant, resistance to deterioration, then can prepare the wear-resisting pipe of excellent performance.
Mineral filler can further reduce the frictional coefficient of material and the raw materials cost of wear loss and material when improving material stiffness; By the consistency between process for modifying surface increase mineral filler and polyolefine and the polyoxyethylene, can improve the mechanical property of material.
Characteristics of the present invention are to utilize polymkeric substance crystalline substance/brilliant blend principle, by polyoxyethylene and polyolefine melt blending, preparation has the polyolefine/polyoxyethylene intermingling material of multiple dimensioned blend crystal structure, it can effectively stop polyolefine to contact with slipping plane, increases polyolefinic oilness and wear resistance.Simultaneously, have high mineral filler lubricated and wear resisting property by further interpolation and can further reduce the frictional coefficient of material and the raw materials cost of wear loss and material, prepare mechanical property, friction and wear behavior is good, cheap high-lubrication wear-resisting polyolefin material.By the high-lubrication wear-resisting polyolefin material of above-mentioned preparation prepare further that processing is simple, quick construction high-lubrication wear-resisting polyolefin pipe easily.
Embodiment is particularly, with polyolefine in 60～90 ℃ of dryings after 4～6 hours with polyoxyethylene, mix in mineral filler, polyolefin stabilizers and the polyoxyethylene stablizer adding homogenizer, extrude in 170～220 ℃ of melt blendings of temperature, obtain having the wear-resistant self-lubricating polyolefine material, in pipe extruder, under 170～240 ℃, extrude the high-lubrication wear-resisting polyethylene tube.
Below by embodiment the present invention is specifically described; it is important to point out that embodiment only is used for the present invention is further specified; can not be interpreted as limiting the scope of the invention, the person skilled in the art in this field can make some nonessential improvement and adjustment according to the content of foregoing invention.
The preparation of embodiment 1 high-lubrication wear-resisting polyethylene tube of the present invention
With the 380g high density polyethylene(HDPE) in 90 ℃ of baking ovens of temperature after dry 4 hours, molecular weight is 500,000 polyoxyethylene 20g, glass microballon 20g, each 1.2g of antioxidant 1010 and thiocarbamide, add in the homogenizer and mix, extrude in 190 ℃ of following melt blendings of temperature again, obtain the high-lubrication wear-resisting polythene material.Its frictional coefficient is 0.10, and the polishing scratch width is 3.0mm, and yield strength is 23Mpa.
As a comparison, under the equal conditions, preparation does not contain the polythene material of polyoxyethylene.Its frictional coefficient is 0.3, and the polishing scratch width is 5.8mm, and yield strength is 25Mpa.。
Above-mentioned preparation gained high-lubrication wear-resisting polythene material is extruded internal layer in pipe extruder under 190 ℃ be raw material with the high-lubrication wear-resisting polyethylene, and the common tubing level polyethylene of outer employing is a raw material, and diameter is the polyethylene tube of 40mm.
The preparation of embodiment 2 high-lubrication wear-resisting polyethylene tubes of the present invention
With the 360g new LDPE (film grade) in 90 ℃ of baking ovens of temperature after dry 4 hours; molecular weight is 7,000,000 polyoxyethylene 40g, talcum powder 80g; oxidation inhibitor 245 4g; N-acyl group-N ' alkyl thiourea 4g; add in the homogenizer and mix; extrude in 170 ℃ of following melt blendings of temperature again, obtain the high-lubrication wear-resisting polythene material.Its frictional coefficient is 0.08, and the polishing scratch width is 2.3mm.Yield strength is 13Mpa.
As a comparison, under the equal conditions, preparation does not contain the polythene material of polyoxyethylene.Its frictional coefficient is 0.23, and the polishing scratch width is 7.2mm, and yield strength is 15Mpa.
Extruding above-mentioned preparation gained high-lubrication wear-resisting polythene material outer under 200 ℃ in pipe extruder is raw material with the high-lubrication wear-resisting polyethylene, and it is raw material that internal layer adopts common tubing level polyethylene, and diameter is the polyethylene tube of 120mm.
The preparation of embodiment 3 high-lubrication wear-resisting polyethylene tubes of the present invention
With the 396g medium-density polyethylene in 90 ℃ of baking ovens of temperature after dry 4 hours, molecular weight is 20,000 polyoxyethylene 4g, MCA0.4g, antioxidant 1010 0.04g, 2-coloured glaze base benzoglyoxaline 0.04g, add in the homogenizer and mix, extrude in 210 ℃ of following melt blendings of temperature again, obtain the high-lubrication wear-resisting polythene material.Its frictional coefficient is 0.13, and the polishing scratch width is 3.5mm.Yield strength is 22Mpa.
As a comparison, under the equal conditions, preparation does not contain the polythene material of polyoxyethylene.Its frictional coefficient is 0.25, and the polishing scratch width is 6mm.Yield strength is 25Mpa.
Above-mentioned preparation gained high-lubrication wear-resisting polythene material is extruded whole employings in pipe extruder under 240 ℃ be raw material with the high-lubrication wear-resisting polyethylene, and diameter is the polyethylene tube of 2.0mm.
The preparation of embodiment 4 high-lubrication wear-resisting polyethylene tubes of the present invention
With the 300g high density polyethylene(HDPE) in 90 ℃ of baking ovens of temperature after dry 4 hours, molecular weight is 5,000,000 polyoxyethylene 100g, glass microballon 20g, antioxidant 1010 1.5g, piperazine 2.4g, add in the homogenizer and mix, extrude in 190 ℃ of following melt blendings of temperature again, obtain the high-lubrication wear-resisting polythene material.Its frictional coefficient is 0.12, and the polishing scratch width is 2.8mm, and yield strength is 23Mpa.
As a comparison, under the equal conditions, preparation does not contain the polythene material of polyoxyethylene.Its frictional coefficient is 0.3, and the polishing scratch width is 5.8mm, and yield strength is 25Mpa.
Extruding above-mentioned preparation gained high-lubrication wear-resisting polythene material outer under 200 ℃ in pipe extruder is raw material with the high-lubrication wear-resisting polyethylene, and it is raw material that internal layer adopts common tubing level polyethylene, and diameter is the polyethylene tube of 800mm.
The preparation of embodiment 5 high-lubrication wear-resisting polypropylene tube of the present invention
With the 300g homo-polypropylene in 90 ℃ of baking ovens of temperature after dry 4 hours; molecular weight is 5,000,000 polyoxyethylene 100g, glass microballon 20g; antioxidant 1010 1.5g; N-acyl group-N ' alkyl thiourea 2.5g; add in the homogenizer and mix; extrude in 190 ℃ of following melt blendings of temperature again, obtain the high-lubrication wear-resisting polythene material.Its frictional coefficient is 0.12, and the polishing scratch width is 2.8mm, yield strength 30MPa.
As a comparison, under the equal conditions, preparation does not contain the homo-polypropylene material of polyoxyethylene.Its frictional coefficient is 0.3, and the polishing scratch width is 5.8mm, yield strength 33MPa.
Extruding above-mentioned preparation gained high-lubrication wear-resisting polypropylene material outer under 200 ℃ in pipe extruder is raw material with the high-lubrication wear-resisting polypropylene, and it is raw material that internal layer adopts common tubing grade polypropylene, and diameter is the polyethylene tube of 800mm.
The preparation of embodiment 6 high-lubrication wear-resisting polypropylene tube of the present invention
With the 300g co-polypropylene in 90 ℃ of baking ovens of temperature after dry 4 hours, molecular weight is 5,000,000 polyoxyethylene 100g, glass microballon 20g, antioxidant 1010 1.5g, piperazine 4g, add in the homogenizer and mix, extrude in 190 ℃ of following melt blendings of temperature again, obtain the high-lubrication wear-resisting polypropylene material.Its frictional coefficient is 0.12, and the polishing scratch width is 2.8mm, yield strength 26MPa.
As a comparison, under the equal conditions, preparation does not contain the co-polypropylene material of polyoxyethylene.Its frictional coefficient is 0.3, and the polishing scratch width is 5.8mm, yield strength 28MPa.
Extruding above-mentioned preparation gained high-lubrication wear-resisting polypropylene material outer under 200 ℃ in pipe extruder is raw material with the high-lubrication wear-resisting polypropylene, and it is raw material that internal layer adopts common tubing level co-polypropylene, and diameter is the polypropylene tube of 800mm.
Claims (12)
1. polyolefine material, it is characterized in that: comprise polyolefine and polyoxyethylene, wherein the weight proportion of polyolefine and polyoxyethylene is:
80～99 parts of polyolefine
1～20 part of polyoxyethylene.
2. according to the described polyolefine material of claim 1, it is characterized in that: described polyoxyethylene is with～CH
2-CH
2-O～unitary for repeating structure, molecular weight are 20,000 to 7,000,000 peo resin.
3. according to claim 1 or 2 described polyolefine materials, it is characterized in that: described polyolefine is polyethylene or polypropylene.
4. according to the described polyolefine material of claim 3, it is characterized in that: described polyethylene is with～CH
2～be the unitary new LDPE (film grade) of repeating structure, medium-density polyethylene or high density polyethylene(HDPE); Described polypropylene is with～CH
2(CH
3Unitary homo-polypropylene of)～be repeating structure or co-polypropylene.
5. according to the described polyolefine material of claim 4, it is characterized in that: the recipe ingredient of described polyolefine material is calculated by weight to:
80～99 parts of polyolefine
1～20 part of polyoxyethylene
0.01～1 part in polyolefine oxidation inhibitor
0.01～1 part in polyoxyethylene oxidation inhibitor
Wherein said polyolefine oxidation inhibitor is meant phenolic antioxidant, and described polyoxyethylene oxidation inhibitor is meant ureas, imidazoles or piperazines oxidation inhibitor.
6. according to each described polyolefine material of claim 1-5, it is characterized in that: also contain mineral filler 0.1～20 weight part.
7. according to the described polyolefine material of claim 6, it is characterized in that: wherein one or more mixture such as glass microballon, talcum powder, MCA, molybdenumdisulphide is selected in described mineral filler for use.
8. according to the described polyolefine material of claim 7, it is characterized in that: the recipe ingredient of described polyolefine material is calculated by weight to:
90～99 parts of polyolefine
1～10 part of polyoxyethylene
2～8 parts of mineral fillers
0.1～0.5 part in polyolefine oxidation inhibitor
0.1～0.5 part in polyoxyethylene oxidation inhibitor.
9. described according to Claim 8 polyolefine material, it is characterized in that: the recipe ingredient of described polyolefine material is calculated by weight to:
95～99 parts of polyolefine
1～5 part of polyoxyethylene
3～5 parts of mineral fillers
0.3 part in polyolefine oxidation inhibitor
0.3 part in polyoxyethylene oxidation inhibitor.
10. the preparation method of polyolefine material is characterized in that may further comprise the steps: after polyolefine, polyoxyethylene, mineral filler, oxidation inhibitor are mixed, extrude promptly in 170～220 ℃ of melt blendings of temperature.
11. polyolefin pipe is characterized in that: it is to be that raw material obtains 170～240 ℃ of following extrusion mouldings by each described polyolefine material of claim 1-9.
12. polyolefin pipe according to claim 11 is characterized in that:
The internal layer of described polyolefin pipe adopts each described polyolefine material of claim 1-9, and the extrusion moulding of the common tubing class polyolefin of outer employing obtains;
Or
The skin of described polyolefin pipe each described polyolefine material of claim 1-9, internal layer adopts the extrusion moulding of common tubing class polyolefin to obtain;
Or
The ectonexine of described polyolefin pipe all adopts each described polyolefine material extrusion moulding of claim 1-9 to obtain.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105367877A (en) * | 2015-12-15 | 2016-03-02 | 石家庄格力电器小家电有限公司 | Material for preparing lifting handle, preparation method and application thereof |
| CN106279894A (en) * | 2016-08-17 | 2017-01-04 | 安庆奥迪斯丹包装有限公司 | A kind of mineral fibres filling-foam stone corrugating media of cracking resistance and preparation method thereof |
| CN108603022A (en) * | 2015-12-17 | 2018-09-28 | 住友精化株式会社 | Polyalkylene oxide compositions of hydrocarbons |
| CN110607072A (en) * | 2019-09-12 | 2019-12-24 | 广州视源电子科技股份有限公司 | Pen point composite material of capacitive pen, passive capacitive pen and pen point preparation method thereof |
| CN118271524A (en) * | 2024-04-29 | 2024-07-02 | 滨州伟创高分子材料股份有限公司 | Ultrahigh molecular weight polyethylene material for preparing lining pipe in oil extraction device of oil field and application thereof |
| CN118320879A (en) * | 2024-04-24 | 2024-07-12 | 麦博睿新材料科技(重庆)有限公司 | Self-lubricating filtering sample bottle and preparation process thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105367877A (en) * | 2015-12-15 | 2016-03-02 | 石家庄格力电器小家电有限公司 | Material for preparing lifting handle, preparation method and application thereof |
| CN105367877B (en) * | 2015-12-15 | 2018-04-13 | 石家庄格力电器小家电有限公司 | Material for preparing lifting handle, preparation method and application thereof |
| CN108603022A (en) * | 2015-12-17 | 2018-09-28 | 住友精化株式会社 | Polyalkylene oxide compositions of hydrocarbons |
| EP3392310A4 (en) * | 2015-12-17 | 2019-08-07 | Sumitomo Seika Chemicals Co. Ltd. | Polyalkylene oxide composition |
| CN108603022B (en) * | 2015-12-17 | 2023-03-28 | 住友精化株式会社 | Polyalkylene oxide compositions |
| CN106279894A (en) * | 2016-08-17 | 2017-01-04 | 安庆奥迪斯丹包装有限公司 | A kind of mineral fibres filling-foam stone corrugating media of cracking resistance and preparation method thereof |
| CN110607072A (en) * | 2019-09-12 | 2019-12-24 | 广州视源电子科技股份有限公司 | Pen point composite material of capacitive pen, passive capacitive pen and pen point preparation method thereof |
| CN118320879A (en) * | 2024-04-24 | 2024-07-12 | 麦博睿新材料科技(重庆)有限公司 | Self-lubricating filtering sample bottle and preparation process thereof |
| CN118271524A (en) * | 2024-04-29 | 2024-07-02 | 滨州伟创高分子材料股份有限公司 | Ultrahigh molecular weight polyethylene material for preparing lining pipe in oil extraction device of oil field and application thereof |
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Application publication date: 20100421 |