CN1614280A - Multipurpose and multilayer coextruded plastic composite pipe - Google Patents
Multipurpose and multilayer coextruded plastic composite pipe Download PDFInfo
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- CN1614280A CN1614280A CN 200410036038 CN200410036038A CN1614280A CN 1614280 A CN1614280 A CN 1614280A CN 200410036038 CN200410036038 CN 200410036038 CN 200410036038 A CN200410036038 A CN 200410036038A CN 1614280 A CN1614280 A CN 1614280A
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Abstract
A multipurposed composite multi-layer plastic pipe used in mine or oil field for delivering gas, air, water oil, etc. or as the rollers of belt conveyer features that its pipe wall is composed of a core layer and two surficial layers. Said surficial layer contains 10 components including polyvinyl chloride, polyvinyl oxide composite stabilizer, stearic acid, etc. Said core layer contains 8 components including polyvinyl chloride, low-molecular polyethene, composite stabilizer, calcium stearate, etc.
Description
(1) technical field
The present invention relates to a kind of conveying that is used for rock gas, coal gas, the draining of colliery and other down-hole, mine, ventilate, draw out methane, the conveying of the various liquid oils in oil field and be used to make the tubing that belt conveyor is entrusted the roll body of roller.Requiring its existing certain mechanical property, physical property, and have fire-retardant and anti-static electricity property, is a kind of multipurposed composite multi-layer plastic specifically.
(2) background technique
At present: rock gas, the conveying of coal gas, the draining of colliery and other down-hole, mine, ventilate, draw out methane, the conveying of the various liquid oils in oil field and making belt conveyor are entrusted the roll body tubing of roller, the overwhelming majority adopts metal to make, this class tubing need be brushed paint in use, and it is not corrosion-resistant, weight is big, install inconvenient, when especially using, need frequent brushing paint, maintenance in the down-hole of humidity, the maintenance expenses height, corrode quite soon, working life is short, needs often to change, but also exist the hidden danger that causes gas explosion with other metal bump flashing, the material that above-mentioned several situation is used exists not corrosion-resistant, weight is big, the cost height removes and installs inconvenience, shortcomings such as maintenance cost height.
Plastic tube is as a kind of brand-new material, and have the incomparable advantage of many metal pipes: light weight is inexpensive, and fitting operation is simple and convenient, and is corrosion-resistant, in a lot of fields alternative metals tubing progressively.But plastics are good insulation performance bodies, and surface resistance is big, and poor electric conductivity is in the colliery, rock gas, oil field etc. easily produce the occasion of static, can cause fire or gas explosion because of electrostatic accumulation.Simultaneously, owing to environment in mine, the oil field is abominable, pipeline is often impacted and is collided, and this just requires tubing must reach higher mechanical strength, must possess " two anti-" (antistatic, flame resistant) performance.It is directly to extrude mono-layer tube that a kind of plastic tube is arranged, this antistatic, the fire-proof plastic pipe material cost height of directly extruding, tensile strength, impact strength, processibility are relatively poor, in order to improve performance, have to increase other processing aids, further aggravated the rising of cost and the reduction of intensity, and in order to remedy the drawback of reduction in strength, have to increase the wall thickness of tubing again, increased the cost of tubing again.
(3) summary of the invention
The objective of the invention is to solve the problems of the technologies described above, a kind of multipurposed composite multi-layer plastic is proposed, be used for the conveying of rock gas, coal gas, the draining of colliery and other down-hole, mine, ventilate, draw out methane, the conveying of the various liquid oils in oil field and making belt conveyor are entrusted the multiple uses such as roll body of roller, make it can improve intensity, reduce cost, and have performance antistatic, flame resistant, with its monolayer plastic pipe that replaces metal pipe and directly extrude.
The object of the present invention is achieved like this: this multipurposed composite multi-layer plastic, tube wall comprise cortex and sandwich layer, it is characterized in that:
The constituent of cortex material is as follows:
The constituent title is formed component content (parts by weight)
PVC (PVC) 100
OPE 0.1-1
Compound stabilizer 1-7
Stearic acid 0.1-2
Calcium stearate 0.1-2.5
Decabromodiphenyl oxide 1-5
Haloflex (CPE) 2-10
Acrylic polymer (ACR) 5-15
Conductive carbon black or acetylene carbon black or plumbago 5-30
French chalk or calcium carbonate 3-10
The constituent of core layer material is as follows:
The constituent title is formed component content (parts by weight)
PVC 100
OPE 0.1-0.5
Compound stabilizer 1-7
Stearic acid 0.1-2
Calcium stearate 0.1-2.5
Decabromodiphenyl oxide 1-5
Haloflex (CPE) 2-10
Acrylic polymer (ACR) 5-15
French chalk or calcium carbonate 8-40
PVC in the cortex material constituent can substitute with PVC and ABS resin (acrylonitrile-butadiene-styrene copolymer) blend, and wherein PVC is 1 with the ratio of ABS: 1-0.5.
Cortex comprises the endodermis of sandwich layer inside and the exodermis of sandwich layer outside, perhaps only is the exodermis of sandwich layer outside, perhaps only is the inner endodermis of sandwich layer.According to the material variety of being carried, and the actual conditions of pipeline working environment, decision adopts the sandwich layer outside to have exodermis, inside that the tubing of endodermis is arranged, and perhaps sandwich layer only is the tubing that there is exodermis the outside, and perhaps sandwich layer only is the tubing that there is endodermis inside.The thickness of sandwich layer, exodermis, endodermis is according to the requirement decision of operating conditions.
Adopt three-layer co-extruded compound plastic pipe design, endodermis, exodermis are thinner, make it mainly bring into play antistatic and fire-retardant effect, intermediate core layer is thicker, it mainly acts on and is to keep certain mechanical property and physical property, as long as in the constituent of exodermis, endodermis material, add an amount of fire retardant and anti-static agent, just can reach the overall balance of anti-static electricity property, flame retardant property, processibility like this.
Select PVC or select PVC for use and base-material is made in ABS resin (acrylonitrile-butadiene-styrene copolymer) blend, the skeleton that is equivalent to tubing, its mechanical property excellence, corrosion-resistant, anti-aging, cost is low, wide material sources, and PVC has certain flame retarding, has best price performance.OPE plays the bulking agent effect, can make the PVC/ABS blend form the good system of compatibility; Compound stabilizer and calcium stearate play the stable and processing and lubrication effect of processing; Haloflex and acrylic polymer play the processing aid effect, and it can strengthen and improve the impact resilience of product, have improved the physical property of product greatly.Haloflex is produced by Weifang Yaxing Chemical Co., Ltd., and bulk density is 0.50g/cm
3, 170 ℃ of heat decomposition temperatures, it can improve the impact resilience of polymer.Compound stabilizer plays stabilization, and it is better to produce the bear board with Japan product OGP or Germany.Decabromodiphenyl oxide plays fire retardation; Acrylate polymer is white free-flowing powder, and bulk density is 0.25-0.45g/cc, and viscosity is 1.8-3.0, and proportion is 1.05-1.2, is processing aid in composition, can improve the flowability of polymer, and guarantees the physical and mechanical properties of high polymer.Conductive carbon black is a granular, and the Mean particle diameter of acetylene carbon black is less than 35 millimicrons, and plumbago is more than 1000 orders, and the adding of these three kinds of components can make polymer have good antistatic property; French chalk and calcium carbonate not only have the assisting flame-resistant effect, and can reduce cost and be easy to the processing typing of macromolecular material.
Multipurposed composite multi-layer plastic of the present invention is mediated through the heating of high speed dispersion kneader after can mixing by above-mentioned consumption, and temperature is 110 ℃-125 ℃, and cold then mixing to less than 40 ℃ adopted the compound various uses tubing of multi-layer co-extruded one-tenth.
The advantage of multipurposed composite multi-layer plastic of the present invention is: can be used for the conveying of rock gas, coal gas, the draining of colliery and other down-hole, mine, ventilate, draw out methane, the conveying of the various liquid oils in oil field and make the multiple uses such as roll body that belt conveyor is entrusted roller; Cortex is thinner, antistatic, the flame resistant performance is good, and corrosion-resistant, anti-aging, sandwich layer is thicker, mechanical property is good, cost is low, with the compound plastic pipe that material prescription of the present invention and multi-layer co-extruded method are produced, be low, but also the strong a kind of plastic article of physical property of current optimal a kind of not only cost of production; Its every performance of made tubing all reaches and surpasses every profession and trade standard and NBS, and its sheet resistance value the best can reach＜and 1 * 10
6Ω, the metal pipe that can replace various places to use fully, be a kind of desirable, economical, moulding for product made from steel, and can substitute the mono-layer tube of directly extruding.
(4) description of drawings
Fig. 1 is a kind of multipurposed composite multi-layer plastic structural representation,
(5) embodiment
Fig. 1 represents a kind of structure of multiduty three-layer co-extruded compound plastic pipe, includes sandwich layer 1, and cortex comprises exodermis 21 and endodermis 22.
The constituent of its sandwich layer 1 and cortex (exodermis 21 and endodermis 22) is described for three embodiments now:
Embodiment 1
Caliber: 160 millimeters, working pressure 0.8 MPa, 6.2 millimeters of thicknesss of pipe wall, thick 3.2 millimeters of sandwich layer, exodermis, endothelium bed thickness are 1.5 millimeters.
The constituent of cortex material is as follows:
100 parts of PVC and ABS (1: 1) blend, 0.1 part of OPE, 2 parts of compound stabilizers, 0.2 part of stearic acid, 0.5 part of calcium stearate, 1 part of decabromodiphenyl oxide, 2 parts of haloflexes, 3 parts of acrylate polymers, 16 parts of acetylene carbon blacks, 3 parts in calcium carbonate.
The constituent of core layer material is as follows:
100 parts of PVC, 0.1 part of OPE, 2.5 parts of compound stabilizers, 0.3 part of stearic acid, 0.5 part of calcium stearate, 1 part of decabromodiphenyl oxide, 3 parts of haloflexes,
6 parts of acrylic polymers (ACR), 15 parts in French chalk or calcium carbonate.
Haloflex is produced by Weifang Yaxing Chemical Co., Ltd., and bulk density is 0.50g/cm
3, 170 ℃ of heat decomposition temperatures; Acrylate polymer is produced by the Shandong Zibo auxiliary reagent factory, is white free-flowing powder, and bulk density is 0.25-0.45g/cc, and viscosity is 1.8-3.0, and proportion is 1.05-1.2; Compound stabilizer is German bear board product
Embodiment 2
160 millimeters of calibers, working pressure 1.0 MPas, 7.7 millimeters of thicknesss of pipe wall, thick 4.7 millimeters of sandwich layer, 1.5 millimeters of endodermis, crust bed thickness.
The constituent of cortex material is as follows:
100 parts of PVC and ABS (1: 0.5) resin alloys, 0.5 part of OPE, 4.5 parts of compound stabilizers, 1 part of stearic acid, 1.5 parts of calcium stearates, 3 parts of decabromodiphenyl oxides, 5 parts of haloflexes, 10 parts of acrylate polymers, 12 parts of conductive carbon blacks.
The constituent of core layer material is as follows:
100 parts of PVC, 0.3 part of OPE, 5 parts of compound stabilizers, 1 part of stearic acid, 1.2 parts of calcium stearates, 3 parts of decabromodiphenyl oxides, 6 parts of haloflexes, 11 parts of acrylic polymers (ACR), 30 parts in French chalk or calcium carbonate.
Embodiment 3
160 millimeters of calibers, working pressure 1.25 MPas, 9.5 millimeters of thicknesss of pipe wall, thick 6.5 millimeters of sandwich layer, 1.5 millimeters of endodermis, crust bed thickness.
The constituent of cortex material is as follows:
100 parts of PVC, 1 part of OPE, 7 parts of compound stabilizers, 2 parts of stearic acid, 2.5 parts of calcium stearates, 5 parts of decabromodiphenyl oxides, 10 parts of haloflexes, 15 parts of acrylate polymers, 30 parts of plumbagos, 10 parts of French chalk.
The constituent of core layer material is as follows:
100 parts of PVC, 0.5 part of OPE, 7 parts of compound stabilizers, 2 parts of stearic acid, 2.5 parts of calcium stearates, 6 parts of decabromodiphenyl oxides, 10 parts of haloflexes, 15 parts of acrylic polymers, 40 parts of French chalk.
Test result to three embodiment's six roots of sensation test specimens:
Technology, quality index:
(1) combustion performance:
Six roots of sensation test specimen flaming combustion summation (S) :≤18
Six roots of sensation test specimen flameless combustion summation (S) :≤120
(2) electric conductivity:
Surface resistance mean value (Ω) :≤1.0 * 10
6
(3) physical and mechanical property:
Flattening test (＜1/2): free from flaw
Tensile strength (Mpa): 〉=35
Hammer falling impact strength (2M, 2Kg): do not destroy
Longitudinal size variance ratio (%): ± 2.5
(4) hydraulic pressure test (two times of working pressures): ne-leakage
Through national coal winning machine quality supervision inspection center, the sheet resistance value of test product of the present invention is respectively 2.5 * 10
5Ω, 1.0 * 10
6Ω, 2.0 * 10
3Ω, 1.5 * 10
4Ω, 7.5 * 10
7Ω, 3.5 * 10
7Ω.
The flaming combustion time (second) (alcohol blast burner) of product of the present invention is respectively 0.82,1.01,1.42,0.7,0.85,0.91, and the flameless combustion time (second) (alcohol blast burner) is respectively 1.82,2.05,1.66,0.92,0.97,1.23.According to the regulation of national Ministry of Coal Industry, the arithmetic mean value of flaming combustion time must not be greater than 3 seconds, and arbitrary sample wherein must not be greater than 10 seconds; And underground mine use non-metallic products sheet resistance value must not surpass 1 * 10
8Ω.Institute's test result has proved the excellent properties of the present composition.
Claims (4)
1, a kind of multipurposed composite multi-layer plastic, tube wall comprises cortex and sandwich layer, it is characterized in that:
The constituent of cortex material is as follows:
The constituent title is formed component content (parts by weight)
PVC (PVC) 100
OPE 0.1-1
Compound stabilizer 1-7
Stearic acid 0.1-2
Calcium stearate 0.1-2.5
Decabromodiphenyl oxide 1-5
Haloflex 2-10
Acrylic polymer (ACR) 5-15
Conductive carbon black or acetylene carbon black or plumbago 5-30
French chalk or calcium carbonate 3-10
The constituent of core layer material is as follows:
The constituent title is formed component content (parts by weight)
PVC 100
OPE 0.1-0.5
Compound stabilizer 1-7
Stearic acid 0.1-2
Calcium stearate 0.1-2.5
Decabromodiphenyl oxide 1-5
Haloflex 2-10
Acrylic polymer (ACR) 5-15
French chalk or calcium carbonate 8-40
2, according to the described multipurposed composite multi-layer plastic of claim 1, it is characterized in that the PVC in the cortex material constituent can substitute with PVC and ABS resin (acrylonitrile-butadiene-styrene copolymer) blend, wherein PVC is 1 with the ratio of ABS: 1-0.5.
3, according to the described multipurposed composite multi-layer plastic of claim 1, it is characterized in that cortex comprises the endodermis of sandwich layer inside and the exodermis of sandwich layer outside, perhaps only be the exodermis of sandwich layer outside, perhaps only be the inner endodermis of sandwich layer.
4, according to the described multipurposed composite multi-layer plastic of claim 1, can be used for the conveying of rock gas, coal gas, the draining of colliery and other down-hole, mine, ventilate, draw out methane, the conveying of the various liquid oils in oil field and make the roll body that belt conveyor is entrusted roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410036038 CN1276950C (en) | 2004-10-29 | 2004-10-29 | Multipurpose and multilayer coextruded plastic composite pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410036038 CN1276950C (en) | 2004-10-29 | 2004-10-29 | Multipurpose and multilayer coextruded plastic composite pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1614280A true CN1614280A (en) | 2005-05-11 |
| CN1276950C CN1276950C (en) | 2006-09-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410036038 Expired - Fee Related CN1276950C (en) | 2004-10-29 | 2004-10-29 | Multipurpose and multilayer coextruded plastic composite pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1276950C (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748543A (en) * | 2012-02-07 | 2012-10-24 | 潍坊现代塑胶有限公司 | Hose for household gas |
| CN102863710A (en) * | 2011-07-06 | 2013-01-09 | 中国石油化工股份有限公司 | Three-layer co-extrusion PVC-M tubular product for coal mine |
| CN103524925A (en) * | 2013-09-25 | 2014-01-22 | 吴江市天源塑胶有限公司 | Radiation-resistant conductive plastic |
| CN104497446A (en) * | 2014-12-19 | 2015-04-08 | 黄文鹏 | Polyvinyl chloride composite pipe and preparation method thereof |
| CN104565584A (en) * | 2014-12-19 | 2015-04-29 | 黄文鹏 | Steel wire frame reinforced polyethylene composite pipe and preparation method thereof |
| CN104744846A (en) * | 2013-12-27 | 2015-07-01 | 奇美实业股份有限公司 | Thermoplastic resin composition and molded article |
| CN106585020A (en) * | 2016-12-20 | 2017-04-26 | 常熟市科恒电工塑胶厂 | High-insulation safe composite plastic product |
| CN107685516A (en) * | 2016-12-20 | 2018-02-13 | 常熟市科恒电工塑胶厂 | A kind of high composite plastic product of tensile strength |
| CN110591249A (en) * | 2019-09-09 | 2019-12-20 | 界首市亚鑫塑业科技有限公司 | Processing technology of hollow building template |
| CN111864666A (en) * | 2020-08-07 | 2020-10-30 | 上海贝思特管业有限公司 | Heat-resistant wear-resistant high-toughness self-positioning PVC pipe |
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| WO2022016208A1 (en) * | 2020-07-23 | 2022-01-27 | Prok Conveyor Components Pty Ltd | Conveyor roller tube |
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2004
- 2004-10-29 CN CN 200410036038 patent/CN1276950C/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102863710A (en) * | 2011-07-06 | 2013-01-09 | 中国石油化工股份有限公司 | Three-layer co-extrusion PVC-M tubular product for coal mine |
| CN102863710B (en) * | 2011-07-06 | 2014-10-15 | 中国石油化工股份有限公司 | Three-layer co-extrusion PVC-M tubular product for coal mine |
| CN102748543A (en) * | 2012-02-07 | 2012-10-24 | 潍坊现代塑胶有限公司 | Hose for household gas |
| CN102748543B (en) * | 2012-02-07 | 2013-12-04 | 潍坊现代塑胶有限公司 | Hose for household gas |
| CN103524925A (en) * | 2013-09-25 | 2014-01-22 | 吴江市天源塑胶有限公司 | Radiation-resistant conductive plastic |
| CN104744846B (en) * | 2013-12-27 | 2018-02-02 | 奇美实业股份有限公司 | Thermoplastic resin composition and molded article |
| CN104744846A (en) * | 2013-12-27 | 2015-07-01 | 奇美实业股份有限公司 | Thermoplastic resin composition and molded article |
| CN104565584A (en) * | 2014-12-19 | 2015-04-29 | 黄文鹏 | Steel wire frame reinforced polyethylene composite pipe and preparation method thereof |
| CN104497446A (en) * | 2014-12-19 | 2015-04-08 | 黄文鹏 | Polyvinyl chloride composite pipe and preparation method thereof |
| CN106585020A (en) * | 2016-12-20 | 2017-04-26 | 常熟市科恒电工塑胶厂 | High-insulation safe composite plastic product |
| CN107685516A (en) * | 2016-12-20 | 2018-02-13 | 常熟市科恒电工塑胶厂 | A kind of high composite plastic product of tensile strength |
| CN110591249A (en) * | 2019-09-09 | 2019-12-20 | 界首市亚鑫塑业科技有限公司 | Processing technology of hollow building template |
| CN110591249B (en) * | 2019-09-09 | 2021-11-23 | 界首市亚鑫塑业科技有限公司 | Processing technology of hollow building template |
| CN111864666A (en) * | 2020-08-07 | 2020-10-30 | 上海贝思特管业有限公司 | Heat-resistant wear-resistant high-toughness self-positioning PVC pipe |
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| Publication number | Publication date |
|---|---|
| CN1276950C (en) | 2006-09-27 |
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