CN106279875A - A kind of novel polyethylene floor heating pipe and preparation method - Google Patents

A kind of novel polyethylene floor heating pipe and preparation method Download PDF

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Publication number
CN106279875A
CN106279875A CN201610650887.8A CN201610650887A CN106279875A CN 106279875 A CN106279875 A CN 106279875A CN 201610650887 A CN201610650887 A CN 201610650887A CN 106279875 A CN106279875 A CN 106279875A
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China
Prior art keywords
polyethylene
heating pipe
floor heating
parts
preparation
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Pending
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CN201610650887.8A
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Chinese (zh)
Inventor
王冲
孟庆阳
纪学伟
冯厚军
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Dayu Water Saving Tianjin Co Ltd
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Dayu Water Saving Tianjin Co Ltd
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Priority to CN201610650887.8A priority Critical patent/CN106279875A/en
Publication of CN106279875A publication Critical patent/CN106279875A/en
Pending legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/10—Esters; Ether-esters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
    • C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
    • C08J9/102—Azo-compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
    • C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
    • C08J9/102—Azo-compounds
    • C08J9/103—Azodicarbonamide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/13—Phenols; Phenolates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/12—Rigid pipes of plastics with or without reinforcement
    • F16L9/133—Rigid pipes of plastics with or without reinforcement the walls consisting of two layers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/04—Homopolymers or copolymers of ethene
    • C08J2323/06—Polyethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/08—Stabilised against heat, light or radiation or oxydation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/14—Applications used for foams
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/18—Applications used for pipes

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

A kind of preparation method of novel polyethylene floor heating pipe, it is characterised in that: obtained outer layer polyethylene foamed, polyethylene 80 100 parts, modifying agent 15 parts, 0.1 0.5 parts of antioxidant, foaming agent 48 parts by the raw material Hybrid Heating of following parts by weight；Internal layer heat-proof polythene is obtained: heat-proof polythene 80 100 parts, 0.1 0.5 parts of antioxidant, black masterbatch 24 parts, coextrusion mold in double-layer coextrusion goes out machine obtains double-decker polyethylene floor heating pipe by above-mentioned outer layer polyethylene foamed and internal layer heat-proof polythene by the raw material Hybrid Heating of following parts by weight.The invention has the beneficial effects as follows: outer layer polyethylene foamed improves resisted shrinkage performance, ageing resistace, extends service life, improve the rigidity of floor heating pipe；Internal layer heat resistant polyethylene material has high temperature durability, improves durable, the heat resistance of floor heating pipe.

Description

A kind of novel polyethylene floor heating pipe and preparation method
Technical field
The present invention relates to polymeric material field, be specifically related to a kind of novel polyethylene floor heating pipe and preparation method.
Background technology
When cold winter arrives, " thermal insulation " day by day becomes the much-talked-about topic that people talk about.Floor heating full name is floor Radiant heating, is a kind of accumulation of heat based on ground, heat transfer technology.Floor heating pipe is mainly formed by plastic processing, and floor heating pipe is embedded in ground Under, the stability of pipeline, load performance, rigidity, intensity are had high requirements.Meanwhile, some plastic conduit outer surfaces are scratch-resistant, resistance to Mill property is poor, it is easy to occur as soon as slight crack.Floor heating pipe is embedded in building building cement, and repair and replacement are extremely difficult, when product quality occur Problem, will result in serious property safety accident.Therefore, national standard is the highest to the performance requirement of floor heating pipe, to ensure that it is pacified Full use.
Polyethylene is typical thermoplastic, owing to PE tubing has nontoxic, tasteless, odorless, good cold-resistant, heat-resisting Property and chemical stability, higher rigidity and toughness, and good mechanical property, the plurality of advantages such as easy for installation, widely should Give for building, draining, the field such as buried drain pipe, appendix and telecommunications engineering.Common polyvinyl piping materials is as floor heating pipe During use, scratch-resistant, wear no resistance, it is easy to occur as soon as slight crack, it is therefore desirable to floor heating pipe is improved.
Summary of the invention
The technical problem to be solved is to provide a kind of durable, heat-resisting novel polyethylene floor heating pipe and preparation Method.
The present invention solves above-mentioned technical problem and be the technical scheme is that the preparation side of a kind of novel polyethylene floor heating pipe Method, it is characterised in that: obtained outer layer polyethylene foamed by the raw material Hybrid Heating of following parts by weight, polyethylene 80-100 part, Modifying agent 1-5 part, antioxidant 0.1-0.5 part, foaming agent 4-8 part；Internal layer is obtained by the raw material Hybrid Heating of following parts by weight Heat-proof polythene: heat-proof polythene 80-100 part, antioxidant 0.1-0.5 part, black masterbatch 2-4 part, by poly-for above-mentioned outer layer foaming Ethylene and internal layer heat-proof polythene coextrusion mold in double-layer coextrusion goes out machine obtain double-decker polyethylene floor heating pipe.
Further, the preparation process of described outer layer polyethylene foamed:
Step 1: by weight by polyethylene and 1～5 part of modifying agent mixed melting at 170～190 DEG C of 80-100 part Prepare a material；
Step 2: by weight by the polyethylene of 5～10 parts and 0.1～0.5 part of antioxidant at 170～190 DEG C of mixed meltings Prepare b material；
Step 3: a material and b material are mixed and added into 4～8 parts of foaming agent and obtain outer layer polyethylene foamed.
Further, described internal layer heat-proof polythene presses heat-proof polythene 80-100 part, antioxidant 0.1-0.5 part, black masterbatch 2-4 part carries out proportioning, is sequentially placed in blender, and mixture temperature 80 DEG C, mixing time is 20 30min, obtains internal layer heat-resisting Polyethylene；
Further, the barrel zone temperature of described extruder is 180 DEG C 210 DEG C, and the temperature of die orifice is 210 DEG C 230 DEG C；Squeeze Go out tubing through vacuum sizing, cool down molding, obtain double-decker polyethylene floor heating pipe.
Further, any one during described modifying agent is titanate coupling agent, aluminate coupling agent；Described antioxidant is Any one in phenols main antioxygen TCA, oxygen agent 1010；Described foaming agent is in azodicarbonamide, azodiisobutyronitrile Any one.
A kind of novel polyethylene floor heating pipe, it is characterised in that: prepared by the preparation method described in above-mentioned any one.
The invention has the beneficial effects as follows: outer layer polyethylene foamed improves resisted shrinkage performance, ageing resistace, extends and makes With the life-span, improve the rigidity of floor heating pipe；Internal layer heat resistant polyethylene material has high temperature durability, improves the resistance to of floor heating pipe For a long time, heat resistance.
Detailed description of the invention
Technical scheme will be clearly and completely described below, it is clear that described embodiment is this Bright a part of embodiment rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not having Have and make the every other embodiment obtained under creative work premise, broadly fall into the scope of protection of the invention.
Embodiment 1
By weight polyethylene and 3 parts of titanate coupling agent mixed meltings at 170～190 DEG C of 90 parts are prepared a material； By weight polyethylene and 0.3 part of antioxygen TCA of 10 parts are prepared b material at 170～190 DEG C of mixed meltings；By mixed to a material and b material Merge 5 parts of azodicarbonamides of addition and add in extruder stand-by.
By weight heat-proof polythene (PE-RT) 100 parts, antioxygen TCA 0.3 part, black masterbatch 2 parts are sequentially placed into blender In, mixture temperature 80 DEG C, mixing time is 20 30min, obtains internal layer heat resistant polyethylene material；
Internal layer heat resistant polyethylene material is joined coextrusion mold in above-mentioned extruder, and barrel zone temperature is 180 DEG C 210 DEG C, the temperature of die orifice is 210 DEG C 230 DEG C；Extruding pipe material, through vacuum sizing, cools down molding.
Embodiment 2
By weight polyethylene and 3 parts of titanate coupling agent mixed meltings at 170～190 DEG C of 90 parts are prepared a material； By weight polyethylene and 0.2 part of antioxygen TCA of 10 parts are prepared b material at 170～190 DEG C of mixed meltings；By mixed to a material and b material Merge 4 parts of azodiisobutyronitriles of addition and add in extruder stand-by.
By weight heat-proof polythene (PE-RT) 100 parts, antioxygen TCA 0.3 part, black masterbatch 2 parts are sequentially placed into blender In, mixture temperature 80 DEG C, mixing time is 20 30min, obtains internal layer heat resistant polyethylene material；
Internal layer heat resistant polyethylene material is joined coextrusion mold in above-mentioned extruder, and barrel zone temperature is 180 DEG C 210 DEG C, the temperature of die orifice is 210 DEG C 230 DEG C；Extruding pipe material, through vacuum sizing, cools down molding.
Embodiment 1 and embodiment 2 are carried out performance experiment test with conventional floor heating pipe, result such as following table:
Table 1: tubing senile experiment result
Table 2: mechanical properties of tubular goods is tested
Performance Heating coil routinely Embodiment 1 Embodiment 2
Hot strength MPa 22.5 37.8 38.6
Elongation at break % 578.3 543.8 580.9
Impact strength KJ/m2 28.5 (breach) 47.9 (breach) 45.4 (breach)
Last it is noted that various embodiments above is only in order to illustrate technical scheme, it is not intended to limit；To the greatest extent The present invention has been described in detail by pipe with reference to foregoing embodiments, it will be understood by those within the art that: it depends on So the technical scheme described in foregoing embodiments can be modified, or the most some or all of technical characteristic is entered Row equivalent；And these amendments or replacement, do not make the essence of appropriate technical solution depart from various embodiments of the present invention technology The scope of scheme.

Claims (7)

1. the preparation method of a novel polyethylene floor heating pipe, it is characterised in that: by the raw material Hybrid Heating of following parts by weight Obtain outer layer polyethylene foamed, polyethylene 80-100 part, modifying agent 1-5 part, antioxidant 0.1-0.5 part, foaming agent 4-8 part；By The raw material Hybrid Heating of following parts by weight obtains internal layer heat-proof polythene: heat-proof polythene 80-100 part, antioxidant 0.1-0.5 Part, black masterbatch 2-4 part, become above-mentioned outer layer polyethylene foamed with internal layer heat-proof polythene co-extrusion in double-layer coextrusion goes out machine Type obtains double-decker polyethylene floor heating pipe.
The preparation method of a kind of novel polyethylene floor heating pipe the most according to claim 1, it is characterised in that: described outer layer is sent out The preparation process of bubble polyethylene:
Step 1: by weight polyethylene and 1～5 part of modifying agent mixed melting at 170～190 DEG C of 80-100 part are prepared a Material；
Step 2: by weight polyethylene and 0.1～0.5 part of antioxidant of 5～10 parts are prepared at 170～190 DEG C of mixed meltings B expects；
Step 3: a material and b material are mixed and added into 4～8 parts of foaming agent and obtain outer layer polyethylene foamed.
The preparation method of a kind of novel polyethylene floor heating pipe the most according to claim 1, it is characterised in that: described internal layer is resistance to Hot polymerization ethylene carries out proportioning by heat-proof polythene 80-100 part, antioxidant 0.1-0.5 part, black masterbatch 2-4 part, is sequentially placed into stirring In machine, mixture temperature 80 DEG C, mixing time is 20 30min, obtains internal layer heat-proof polythene.
The preparation method of a kind of novel polyethylene floor heating pipe the most according to claim 1, it is characterised in that: described extruder Barrel zone temperature be 180 DEG C 210 DEG C, the temperature of die orifice is 210 DEG C 230 DEG C；Extruding pipe material, through vacuum sizing, is cooled to Type, obtains double-decker polyethylene floor heating pipe.
5. according to the preparation method of a kind of novel polyethylene floor heating pipe described in claim 1 ~ 4 any one, it is characterised in that: Described modifying agent is any one in titanate coupling agent, aluminate coupling agent；Described antioxidant be phenols main antioxygen TCA, Any one in oxygen agent 1010；Described foaming agent is any one in azodicarbonamide, azodiisobutyronitrile.
6. a novel polyethylene floor heating pipe, it is characterised in that: by the preparation method system described in claim 1 ~ 4 any one ?.
A kind of novel polyethylene floor heating pipe the most according to claim 6, it is characterised in that: described modifying agent is that titanate esters is even Connection agent, aluminate coupling agent in any one；Described antioxidant is any one in phenols main antioxygen TCA, oxygen agent 1010； Described foaming agent is any one in azodicarbonamide, azodiisobutyronitrile.
CN201610650887.8A 2016-08-09 2016-08-09 A kind of novel polyethylene floor heating pipe and preparation method Pending CN106279875A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108533846A (en) * 2018-05-30 2018-09-14 广东联塑科技实业有限公司 A kind of co-extrusion has low temperature resistant PE Gas Pipes
CN110483872A (en) * 2019-08-16 2019-11-22 天津中财型材有限责任公司 A kind of organic silicone master batch and automatically cleaning PERT ground heating pipes and preparation method thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105623038A (en) * 2014-11-03 2016-06-01 青岛鼎益塑料机械有限公司 Polyethylene foaming thermal insulation pipe, and preparation method thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105623038A (en) * 2014-11-03 2016-06-01 青岛鼎益塑料机械有限公司 Polyethylene foaming thermal insulation pipe, and preparation method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
朱洪法、朱玉霞: "《工业助剂手册》", 30 June 2007, 金盾出版社 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108533846A (en) * 2018-05-30 2018-09-14 广东联塑科技实业有限公司 A kind of co-extrusion has low temperature resistant PE Gas Pipes
CN110483872A (en) * 2019-08-16 2019-11-22 天津中财型材有限责任公司 A kind of organic silicone master batch and automatically cleaning PERT ground heating pipes and preparation method thereof
CN110483872B (en) * 2019-08-16 2021-09-03 天津中财型材有限责任公司 Organic silicone master batch, self-cleaning PERT floor heating pipe and preparation method thereof

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Application publication date: 20170104