CN102093618A - Conductive master batch for mining polyethylene pipe and production method thereof - Google Patents
Conductive master batch for mining polyethylene pipe and production method thereof Download PDFInfo
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- CN102093618A CN102093618A CN 201010622345 CN201010622345A CN102093618A CN 102093618 A CN102093618 A CN 102093618A CN 201010622345 CN201010622345 CN 201010622345 CN 201010622345 A CN201010622345 A CN 201010622345A CN 102093618 A CN102093618 A CN 102093618A
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Abstract
The invention discloses a conductive master batch for a mining polyethylene pipe, which is produced by a two-step process comprising: producing a semi-finished product by using an internal mixer; and producing the conductive master batch by using a double screw extruder. The semi-finished product comprises the following components in percentage by weight: 20 to 50 percent of conductive carbon black, 1 to 20 parts of polyethylene wax, 0.1 to 1 percent of antioxygen, and 30 to 80 percent of ethylene vinyl acetate (EVA). The conductive carbon black comprises the following components in percentage by weight: 60 to 95 percent of the semi-finished product, 1 to 5 percent of low molecular weight polyethylene wax, 3 to 10 percent of EVA, and 0.1 to 2 percent of antioxygen. The production method of the conductive master batch is to produce a semi-finished product in the internal mixer first and then produce the conductive master batch in the double screw extruder. The conductive master batch and the production method have the advantages that: the production cost of the produced mining pipe is low, the surface of the pipe is smooth, the dispersibility of the produced mining pipe is high, air bubbles are prevented in the pipe, and the quality of the pipe is stable; and on the premise of not increasing cost, the conductive performance of material reaches 1*10<4>ohms, so that the pipe has very high antistatic performance.
Description
Technical field
The present invention relates to plastics tubing, be specially special-purpose conducting masterbatch of a kind of mineral polyethylene piping materials and production method thereof, use the tubing of this masterbatch production, can solve the static resistance of mining pipes.
Background technology
At present, domestic do not have specialty to be applicable to the special-purpose conducting masterbatch of mineral polyethylene piping materials, produce the employed conducting masterbatch of mineral polyethylene piping materials, be static inhibitor or the very low conducting masterbatch of static index, its shortcoming is cost height, bad dispersibility, poor electric conductivity, rough, the inner bubble etc. that is prone to of tubing of tube surfaces.
Summary of the invention
The objective of the invention is to overcome the defective of above-mentioned mining pipes, special-purpose conducting masterbatch of a kind of mineral polyethylene piping materials and production method thereof are provided, can reduce the production use cost, improve dispersiveness, make conductivity reach 1 * 10
4Ω with interior, improve the tube surfaces luminance brightness, stop tubing inside and bubble phenomenon etc. occurs.
The scheme that the present invention taked is: the special-purpose conducting masterbatch of a kind of mineral polyethylene piping materials, and it is characterized in that adopting two-step approach to produce gained, produce work in-process with Banbury mixer earlier, produce described conducting masterbatch with twin screw extruder again;
Described work in-process components by weight is: graphitized carbon black 20-50%, polyethylene wax 1-20%, oxidation inhibitor 0.1-1%, EVA 30-80%;
Described conducting masterbatch components by weight is: work in-process 60-95%, low-molecular polyethylene wax 1-5%, EVA3-10%, oxidation inhibitor 0.1-2%.
Described graphitized carbon black is a furnace treated black, nitrogen adsorptive value＞600m
2/ g, iodine sorption value 750-1500mg/g, pH value 5-9.5, resistance (10% carbon black+PE)＜130Ohm.cm.
Described polyethylene wax is a low-molecular polyethylene wax, molecular weight 2000-4000, fusing point more than 100 ℃, 140 ℃ of 40MAX of viscosity CPS.
VA content 28-40% among the described EVA.
Described oxidation inhibitor is tricresyl phosphite (24-di-tert-butyl-phenyl) ester, content 99%, acid number≤0.5mgKOH/g.
The production method of the special-purpose conducting masterbatch of a kind of mineral polyethylene piping materials adopts two-step approach to produce gained, produces work in-process with Banbury mixer earlier, produces described conducting masterbatch with twin screw extruder again;
Wherein, Banbury mixer is produced half-finished processing step and is comprised: disposable feeding intake; 150-210 ℃ of banburying temperature; Banbury mixer discharging cooling back pulverizer is ground into work in-process, and then with this work in-process extruding pelletization.
Guaranteeing that low production use cost, conductivity reach 1 * 10
4Ω is with interior, tube surfaces luminance brightness and stop tubing inside and occur under the situation such as bubble phenomenon, and process using uses Banbury mixer, two step of twin screw complete processing to improve dispersiveness.
Beneficial effect of the present invention: the mineral polyethylene piping materials that uses the special-purpose conducting masterbatch of mineral polyethylene piping materials of the present invention to produce, its production use cost is low, tube surfaces is smooth, good dispersity, tubing inside do not have bubble and steady quality, the more important thing is that conductivity under the prerequisite that does not increase production cost (surface, internal resistance) reaches 1 * 10
4In the Ω, make tubing have splendid antistatic property.
Embodiment
The special-purpose conducting masterbatch of a kind of mineral polyethylene piping materials adopts two-step approach to produce gained, produces work in-process with Banbury mixer earlier, produces conducting masterbatch with twin screw extruder again;
Described work in-process components by weight is: graphitized carbon black 20-50%, polyethylene wax 1-20%, oxidation inhibitor 0.1-1%, EVA 30-80%;
Described conducting masterbatch components by weight is: work in-process 60-95%, low-molecular polyethylene wax 1-5%, EVA3-10%, oxidation inhibitor 0.1-2%.
Described graphitized carbon black is a furnace treated black, nitrogen adsorptive value＞600m
2/ g, iodine sorption value 750-1500mg/g, pH value 5-9.5, resistance (10% carbon black+PE)＜1300hm.cm.
Described polyethylene wax is a low-molecular polyethylene wax, molecular weight 2000-4000, fusing point more than 100 ℃, 140 ℃ of 40MAX of viscosity CPS.
VA content 28-40% among the described EVA.
Described oxidation inhibitor is tricresyl phosphite (24-di-tert-butyl-phenyl) ester, content 99%, acid number≤0.5mgKOH/g.
Its concrete production method is:
The first step, earlier according to the work in-process components by weight use electronic scale accurately claim raw material, after treating that Banbury mixer is raised to design temperature 150-210 ℃, with alleged disposable the joining in the Banbury mixer of raw material, using Banbury mixer to produce the back, to use pulverizer to be ground into behind the work in-process stand-by.
Second step, again according to the conducting masterbatch components by weight use electronic scale accurately claim raw material, carry out granulation production with twin screw extruder again.
Claims (6)
1. the special-purpose conducting masterbatch of mineral polyethylene piping materials is characterized in that adopting two-step approach to produce gained, produces work in-process with Banbury mixer earlier, produces described conducting masterbatch with twin screw extruder again;
Described work in-process components by weight is: graphitized carbon black 20-50%, polyethylene wax 1-20%, oxidation inhibitor 0.1-1%, EVA 30-80%;
Described conducting masterbatch components by weight is: work in-process 60-95%, low-molecular polyethylene wax 1-5%, EVA 3-10%, oxidation inhibitor 0.1-2%.
2. the special-purpose conducting masterbatch of a kind of mineral polyethylene piping materials as claimed in claim 1 is characterized in that described graphitized carbon black is a furnace treated black, nitrogen adsorptive value＞600m
2/ g, iodine sorption value 750-1500mg/g, pH value 5-9.5, resistance (10% carbon black+PE)＜130Ohm.cm.
3. the special-purpose conducting masterbatch of a kind of mineral polyethylene piping materials as claimed in claim 1 is characterized in that described polyethylene wax is a low-molecular polyethylene wax, molecular weight 2000-4000, fusing point more than 100 ℃, 140 ℃ of 40MAX of viscosity CPS.
4. the special-purpose conducting masterbatch of a kind of mineral polyethylene piping materials as claimed in claim 1 is characterized in that VA content 28-40% among the described EVA.
5. the special-purpose conducting masterbatch of a kind of mineral polyethylene piping materials as claimed in claim 1 is characterized in that described oxidation inhibitor is tricresyl phosphite (24-di-tert-butyl-phenyl) ester, content 99%, acid number≤0.5mgKOH/g.
6. the production method of the special-purpose conducting masterbatch of a kind of mineral polyethylene piping materials as claimed in claim 1 is characterized in that adopting two-step approach to produce gained, produces work in-process with Banbury mixer earlier, produces described conducting masterbatch with twin screw extruder again;
Wherein, Banbury mixer is produced half-finished processing step and is comprised: disposable feeding intake; 150-210 ℃ of banburying temperature; Banbury mixer discharging cooling back pulverizer is ground into work in-process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010622345 CN102093618A (en) | 2010-12-30 | 2010-12-30 | Conductive master batch for mining polyethylene pipe and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010622345 CN102093618A (en) | 2010-12-30 | 2010-12-30 | Conductive master batch for mining polyethylene pipe and production method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102093618A true CN102093618A (en) | 2011-06-15 |
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| CN 201010622345 Pending CN102093618A (en) | 2010-12-30 | 2010-12-30 | Conductive master batch for mining polyethylene pipe and production method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104558803A (en) * | 2015-01-16 | 2015-04-29 | 山东泰丰新水管业股份有限公司 | Superconducting master batch for producing polyethylene tube stock and preparation method thereof |
| CN106554557A (en) * | 2015-09-30 | 2017-04-05 | 中国石油化工股份有限公司 | Anti-static polyolefin compositionss and preparation method thereof |
| CN107674295A (en) * | 2017-10-31 | 2018-02-09 | 常州市双成塑母料有限公司 | A kind of preparation method of material for ventilated membrane |
| CN113056371A (en) * | 2018-12-07 | 2021-06-29 | 日本瑞翁株式会社 | Epihalohydrin rubber composition, crosslinked rubber, rubber laminate, and hose |
| RU2803930C1 (en) * | 2019-09-13 | 2023-09-22 | Бореалис Аг | Semiconducting polymer composition |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63205340A (en) * | 1987-02-19 | 1988-08-24 | Fujikura Ltd | Semiconductive mixture |
| JPH04311746A (en) * | 1991-04-09 | 1992-11-04 | Mitsubishi Cable Ind Ltd | Releasable semiconducting composition for power cable |
| CN1616531A (en) * | 2003-11-14 | 2005-05-18 | 中国石化齐鲁股份有限公司 | Antistatic flame-retardant polyethylene composition |
| CN101033309A (en) * | 2006-03-09 | 2007-09-12 | 中国石油化工股份有限公司 | Color masterbatch for polythene and preparing method thereof |
-
2010
- 2010-12-30 CN CN 201010622345 patent/CN102093618A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63205340A (en) * | 1987-02-19 | 1988-08-24 | Fujikura Ltd | Semiconductive mixture |
| JPH04311746A (en) * | 1991-04-09 | 1992-11-04 | Mitsubishi Cable Ind Ltd | Releasable semiconducting composition for power cable |
| CN1616531A (en) * | 2003-11-14 | 2005-05-18 | 中国石化齐鲁股份有限公司 | Antistatic flame-retardant polyethylene composition |
| CN101033309A (en) * | 2006-03-09 | 2007-09-12 | 中国石油化工股份有限公司 | Color masterbatch for polythene and preparing method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104558803A (en) * | 2015-01-16 | 2015-04-29 | 山东泰丰新水管业股份有限公司 | Superconducting master batch for producing polyethylene tube stock and preparation method thereof |
| CN106554557A (en) * | 2015-09-30 | 2017-04-05 | 中国石油化工股份有限公司 | Anti-static polyolefin compositionss and preparation method thereof |
| CN107674295A (en) * | 2017-10-31 | 2018-02-09 | 常州市双成塑母料有限公司 | A kind of preparation method of material for ventilated membrane |
| CN113056371A (en) * | 2018-12-07 | 2021-06-29 | 日本瑞翁株式会社 | Epihalohydrin rubber composition, crosslinked rubber, rubber laminate, and hose |
| RU2803930C1 (en) * | 2019-09-13 | 2023-09-22 | Бореалис Аг | Semiconducting polymer composition |
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Application publication date: 20110615 |