CN1093551C - High-density polyethylene based composition with high thermal conductivity - Google Patents

High-density polyethylene based composition with high thermal conductivity Download PDF

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Publication number
CN1093551C
CN1093551C CN98112222A CN98112222A CN1093551C CN 1093551 C CN1093551 C CN 1093551C CN 98112222 A CN98112222 A CN 98112222A CN 98112222 A CN98112222 A CN 98112222A CN 1093551 C CN1093551 C CN 1093551C
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China
Prior art keywords
density polyethylene
thermal conductivity
polyethylene based
high thermal
based composition
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Expired - Fee Related
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CN98112222A
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CN1246495A (en
Inventor
王琪
高峻
华正坤
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Sichuan Union University
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Sichuan Union University
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Abstract

The present invention relates to high-density polyethylene based composite materials with high thermal conductivity, and the present invention also relates to a method for manufacture thereof. The present invention is characterized in that the high-density activated heat conduction substances processed by an abrasive disc type mechanochemical reactor and right amount of antioxidant are added in high-density polyethylene based materials, and thus, the high-density polyethylene based composite materials with high thermal conductivity can be manufactured by a cross blend method. The present invention can replace steel with plastic under a certain condition; the present invention is used for cooling pipes of cement large dams, normal pressure heat exchange equipment or life heaters and self-lubrication members, etc., and has conspicuous economical benefit and social benefit.

Description

High-density polyethylene based composition with high thermal conductivity
The present invention relates to a kind of high thermal conductivity polymer composites and manufacture method thereof, particularly, the present invention relates to the high thermal conductivity polymer composites that a kind of high density polyethylene(HDPE) and high thermal conductivity filler are the compound manufacturing of raw material blend.
The thermal conductivity of polymkeric substance is very low, belong to poor conductor of heat, in order to improve the thermal conductivity of polymer materials, make it to apply in the actual environment, such as the cooling of cement dam tubing, normal pressure heat-exchange equipment or life heating arrangement, self-lubricating member etc. as functional materials.U.S. Tavman, Ismail H. has reported the influence of metal-powder to the polymkeric substance thermal conductivity, Ef-fect of matallic fillers on thermal conductivity of polymers-Integrated Design and Nanufac-turing of composites American Society of Mechanical Engineers.Patroleum Divson (Pahlica-tion) V64 N2 1994 P165-170, this article has been studied the thermal conductivity of high density polyethylene(HDPE) and metal-powder tin blended compound material, metallic tin powder thermal conductivity is good, but cost an arm and a leg, than great, easily oxidation in the course of processing, metal-powder and the polymer interface little consistency that interacts is poor, causes mechanical property low." development of chlorinated polyvinyl chloride heat pipe "---plastics industry, N5,1992, P46-48, this article has been studied with the filling-modified chlorinated polyvinyl chloride thermal conductivity of Graphite Powder 99, the adding of graphite can improve the chlorinated polyvinyl chloride thermal conductivity, but chlorinated polyvinyl chloride is ageing-resistant, and chemical resistance is poor, and increase with chlorinity, bad stability, processing difficulties, cost height.
The objective of the invention is provides a kind of high-density polyethylene based composition with high thermal conductivity and manufacture method thereof at the deficiencies in the prior art, be characterized in the high density polyethylene(HDPE) body material, being introduced in the conduction material that the millstone type force chemical reactor was handled, suitably add oxidation inhibitor, have the density polyethylene based composition with high of high thermal conductivity and good mechanical properties concurrently by the manufacturing of blend complex method, to widen its Application Areas.
Purpose of the present invention is realized by following technical measures
The recipe ingredient of high-density polyethylene based composition with high thermal conductivity (by weight) is:
High density polyethylene(HDPE), melt index 0.8-0.16g/10min I:2.16kg 3-9.5 part
High thermal conductivity filler (available magnesium oxide, graphite, Calucium Silicate powder), granularity are 63.5-127 μ m 0.5-7 part
Oxidation inhibitor [available thio-2 acid dilaurate (being called for short DLTP), and/or ρ-(4-hydroxyl-3.5-two uncle's fourths
Base) the positive octadecanol acid of propionic acid, (be called for short 1076)] 0.0025~0.02 part
The manufacture method of high-density polyethylene based composition with high thermal conductivity:
1. a certain amount of high thermal conductivity filler is handled activation in the millstone type force chemical reactor of present inventor's power of patenting (ZL95242817.2) after,, standby in temperature 80-100 ℃ oven dry.
2. take by weighing 3~9.5 parts of high density polyethylene(HDPE)s, 0.0025~0.02 part in 0.5~7 part of filler of handling in the millstone type force chemical reactor and adding oxidation inhibitor, mixing in the twin-screw mixer machine, extrude drawing-off cooling, pelletizing packing.Or drying, compressing tablet, test performance.
The high-density polyethylene based composition with high thermal conductivity The performance test results:
Thermal conductivity 0.45-3.5W/mK
Tensile yield strength 21-30MPa
Elongation at break 10-1200%
Shock strength 50-200J/m
The present invention has following advantage:
That the present invention and metallographic phase ratio have is corrosion-resistant, resistive connection is dirty, characteristics such as in light weight; Compare with some other polymkeric substance thermally conductive material have cheap, forming process convenient, have excellent heat conductivity and mechanical property concurrently, can realize under certain condition, be used for cement dam cooling tubing to mould Dai Gang, it is many to solve steel pipe laying joint, constructional difficulties, easy-to-rust easily leaks, the problem that expense is high, and it is little to solve common HDPE pipe thermal conductivity, and caliber is big, the problem high to mechanics of materials requirement of strength; Be used to make the normal pressure heat-exchange equipment or the life heating arrangement of complex-shaped, good toughness, non-scaling; Also can be used for aspects such as self-lubricating member, remarkable economic efficiency and social benefit are arranged.
Embodiment
Below by embodiment the present invention is carried out concrete description; be necessary to be pointed out that at this following examples only are used for the present invention is further detailed; can not be interpreted as limiting the scope of the invention, the person skilled in art can make some nonessential improvement and adjustment to the present invention according to foregoing.
1. it is mixed the millstone type force chemical reactor to be handled 15 kilograms of 5 kilograms in activatory graphite and high density polyethylene(HDPE)s, add oxidation inhibitor (LDTP: 1076=1: 1) 200 grams, mixing in the twin-screw mixer machine, extrude drawing-off, cooling, pelletizing.Drying, compressing tablet, test performance result: thermal conductivity is 1.5W/mK, and tensile yield strength is 24MPa, and elongation at break is 440%, and shock strength is 120J/m.
2. it is mixed the millstone type force chemical reactor to be handled 6 kilograms of 4 kilograms in active oxidation magnesium and high density polyethylene(HDPE)s, and adding oxidation inhibitor (LDTP: 1076=1: 1) 100 grams, mixing in the twin-screw mixer machine, extrude drawing-off, cooling, pelletizing.Dry, compressing tablet, the test performance result: thermal conductivity is 2.1W/mK, and tensile yield strength 22MPa, elongation at break are 50%, and shock strength is 100J/m.
3. the millstone type force chemical reactor is handled 5 kilograms of 5 kilograms in graphite of activation and high density polyethylene(HDPE)s, add oxidation inhibitor (LDTP: 1076=1: 1) 100 grams, mixing in the twin-screw mixer machine, extrude, drawing-off, cooling, pelletizing, drying, compressing tablet, the test performance result: thermal conductivity is 3W/mK, tensile yield strength is 28MPa, elongation at break is 25%, and shock strength is 90J/m.

Claims (4)

1. high-density polyethylene based composition with high thermal conductivity is characterized in that the recipe ingredient (by weight) of this density polyethylene based composition with high is:
High density polyethylene(HDPE), 3~9.5 parts of melt index 0.08~0.16g/10min I:2.16kg
The high thermal conductivity filler, 0.5~7 part of granularity 63.5-127 μ m
0.0025~0.02 part in oxidation inhibitor
2. according to the described high-density polyethylene based composition with high thermal conductivity of claim 1, it is characterized in that the high-conductivity filler is graphite, magnesium oxide, Calucium Silicate powder.
3. according to claim 1 or 2 described high-density polyethylene based composition with high thermal conductivity, it is characterized in that oxidation inhibitor is Tyox B and/or ρ-positive octadecanol ester of (4-hydroxyl-3,5-di-t-butyl) propionic acid.
4. according to the preparation method of the described high-density polyethylene based composition with high thermal conductivity of claim 1, it is characterized in that:
(1) a certain amount of high thermal conductivity filler is handled in the millstone type force chemical reactor activation after, in temperature 80-100 ℃ of oven dry, standby,
(2) take by weighing 3~9.5 parts of high density polyethylene(HDPE)s, handle 0.5~7 part of activatory heat conductive filler, add 0.0025~0.02 part in oxidation inhibitor through the millstone type force chemical reactor, mixing in the twin-screw mixer machine, extrude, through drawing-off cooling, pelletizing, packing.
CN98112222A 1998-09-01 1998-09-01 High-density polyethylene based composition with high thermal conductivity Expired - Fee Related CN1093551C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN98112222A CN1093551C (en) 1998-09-01 1998-09-01 High-density polyethylene based composition with high thermal conductivity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN98112222A CN1093551C (en) 1998-09-01 1998-09-01 High-density polyethylene based composition with high thermal conductivity

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CN1246495A CN1246495A (en) 2000-03-08
CN1093551C true CN1093551C (en) 2002-10-30

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Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102199321B (en) * 2011-03-15 2013-03-06 浙江中财管道科技股份有限公司 Polyethylene pipeline with high thermal conductivity
CN103160134A (en) * 2011-12-14 2013-06-19 中国钢铁股份有限公司 Thermal-conductivity polymer composite material
CN103524836A (en) * 2013-09-25 2014-01-22 吴江市天源塑胶有限公司 Antimicrobial heat-conducting plastic
CN103773122A (en) * 2014-01-15 2014-05-07 芜湖市宝艺游乐科技设备有限公司 Compound radiating coating
CN103756424A (en) * 2014-01-15 2014-04-30 芜湖市宝艺游乐科技设备有限公司 Electroplating-imitation heat dissipation coating
CN103773120A (en) * 2014-01-15 2014-05-07 芜湖市宝艺游乐科技设备有限公司 Decorative heat radiating paint
CN103756427A (en) * 2014-01-15 2014-04-30 芜湖市宝艺游乐科技设备有限公司 Heat radiating coating for lamp tube
CN103756420A (en) * 2014-01-15 2014-04-30 芜湖市宝艺游乐科技设备有限公司 Antibacterial anti-corrosive heat dissipation coating
CN103756421A (en) * 2014-01-15 2014-04-30 芜湖市宝艺游乐科技设备有限公司 Environment-friendly black heat dissipation coating
CN103773123A (en) * 2014-01-15 2014-05-07 芜湖市宝艺游乐科技设备有限公司 Sand-textured metallic heat-dissipating coating material
CN106589544B (en) * 2016-12-09 2019-03-19 中建一局集团装饰工程有限公司 Relief construction method using polyethylene calcium silicate soil
CN108219245A (en) * 2017-12-26 2018-06-29 齐齐哈尔大学 A kind of lightweight corrosion resistance HDPE heating sheet materials

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN86102719A (en) * 1985-03-20 1986-11-26 大日日本电缐株式会社 About flame-retardant resin composition
US5358994A (en) * 1992-08-31 1994-10-25 Gas Research Institute Thermoplastic material for production and repair of polymeric products and coating of metals
CN1109478A (en) * 1994-12-22 1995-10-04 北京燕山石油化工公司研究院 Application method for improved compound alkylphenol esters oxidation preventive

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN86102719A (en) * 1985-03-20 1986-11-26 大日日本电缐株式会社 About flame-retardant resin composition
US5358994A (en) * 1992-08-31 1994-10-25 Gas Research Institute Thermoplastic material for production and repair of polymeric products and coating of metals
CN1109478A (en) * 1994-12-22 1995-10-04 北京燕山石油化工公司研究院 Application method for improved compound alkylphenol esters oxidation preventive

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