CN115386155A - High-thermal-conductivity floor heating pipe material and preparation method thereof - Google Patents
High-thermal-conductivity floor heating pipe material and preparation method thereof Download PDFInfo
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 45
- 239000000463 material Substances 0.000 title claims abstract description 39
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- -1 polyethylene Polymers 0.000 claims description 55
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 43
- 229910021389 graphene Inorganic materials 0.000 claims description 43
- 239000004698 Polyethylene Substances 0.000 claims description 37
- 229920000573 polyethylene Polymers 0.000 claims description 37
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 28
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 27
- 238000002156 mixing Methods 0.000 claims description 23
- 229920001748 polybutylene Polymers 0.000 claims description 21
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 claims description 20
- 238000001125 extrusion Methods 0.000 claims description 18
- 238000005469 granulation Methods 0.000 claims description 18
- 230000003179 granulation Effects 0.000 claims description 18
- 239000004593 Epoxy Substances 0.000 claims description 16
- 235000021355 Stearic acid Nutrition 0.000 claims description 16
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 16
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 16
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 16
- 239000008117 stearic acid Substances 0.000 claims description 16
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 claims description 15
- 150000002148 esters Chemical class 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 12
- 229920001083 polybutene Polymers 0.000 claims description 10
- 235000019260 propionic acid Nutrition 0.000 claims description 10
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 claims description 10
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 claims description 6
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 125000003277 amino group Chemical group 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 3
- 238000010923 batch production Methods 0.000 abstract 1
- 239000000945 filler Substances 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000005191 phase separation Methods 0.000 description 3
- 238000006482 condensation reaction Methods 0.000 description 2
- 229920006113 non-polar polymer Polymers 0.000 description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Abstract
The invention provides a high-thermal-conductivity floor heating pipe material and a preparation method thereof, and belongs to the field of materials. The high-heat-conductivity ground heating pipe material provided by the invention has the advantages that: 1. the heat conductivity is obviously improved from 0.24W/mK to 1.0W/mK. The heat conduction efficiency of the manufactured floor heating pipe is obviously improved, and the heat supply resources are saved. 2. The preparation method has strong operability and is suitable for industrial batch production.
Description
The application is a divisional application with application date of 12/06/7/2017, application number of 201710436741.8 and invention name of 'a high-thermal-conductivity floor heating pipe material and a preparation method thereof'.
Technical Field
The invention relates to the field of materials, in particular to a high-heat-conductivity floor heating pipe material and a preparation method thereof.
Background
In the aspect of winter heating, ground radiation heating is the best heating mode, and has the advantages that the temperature of the indoor ground surface is uniform, the temperature gradually decreases from bottom to top, the indoor humidity is not influenced, the body feeling is comfortable, and the ground radiation heating is a thermal environment meeting the requirements of human bodies. The ground radiation heating is generally accepted in domestic large and medium-sized cities, and is widely applied to various places such as families, hospitals, schools, office buildings and the like. The ground heating pipe is an important heat dissipation component for ground radiation heating, and the heat conduction performance directly influences the indoor temperature and the heat source utilization efficiency. At present, the ground heating pipe is mainly made of polyethylene pipes, the heat conductivity coefficient is 0.2-0.4W/mK, and the heat conductivity is poor, so that the heating efficiency is low. Therefore, the high heat conduction floor heating pipe material is a product which is expected urgently by the heating market.
Disclosure of Invention
The invention aims to provide a high-thermal-conductivity floor heating pipe material which has good thermal conductivity, can improve the heating effect, has higher tensile strength, young modulus and impact strength, and has mechanical properties meeting the relevant requirements of the 2 nd part pipe of heat-resistant polyethylene (PE-RT) pipeline system for GB/T28799.2-2012 cold and hot water.
The technical scheme is as follows:
a high-thermal-conductivity floor heating pipe material is prepared from the following components in parts by weight: 45 parts of polyethylene, 40 parts of polybutylene and Al 2 O 3 9 parts of graphene, 1.5 parts of epoxy oil, 2.8 parts of stearic acid, 1.3 parts of pentaerythritol [3- (3 ',5' -di-tert-butyl-4 ' -hydroxypropyl) propionic acid]0.15 part of ester, phosphorous0.25 part of acid tri (2, 4-di-tert-butylphenyl) ester;
the high-heat-conductivity ground heating pipe material is provided with a high-efficiency heat-conducting network which is formed by connecting graphene and Al through chemical bonds 2 O 3 The heat conduction chain is formed on the two-phase interface of the polyethylene/polybutylene and penetrates through the whole material system;
the preparation method of the high-heat-conductivity heating pipe material comprises the following steps:
(1) Adding polyethylene, graphene, epoxy oil, stearic acid, pentaerythritol [3- (3 ',5' -di-tert-butyl-4 ' -hydroxypropyl) propionate ] and tris (2, 4-di-tert-butylphenyl) phosphite into a high-speed mixer, and mixing at high speed for 3 minutes;
(2) Adding the mixture into a double-screw extruder for extrusion granulation to obtain polyethylene/graphene master batch; the technological parameters of the double-screw extruder are as follows: the rotation speed is 50-150 rpm, the temperature of each working section is respectively set to be 170 +/-20 ℃, 180 +/-20 ℃, 190 +/-20 ℃, and the head temperature is 190 +/-20 ℃;
(3) Mixing polybutylene and Al 2 O 3 Epoxy oil, stearic acid, pentaerythritol [3- (3 ',5' -di-tert-butyl-4 ' -hydroxypropyl) propionic acid]Adding ester and tris (2, 4-di-tert-butylphenyl) phosphite into a high-speed mixer, and mixing at high speed for 3 minutes;
(4) Adding the mixture into a double-screw extruder for extrusion granulation to obtain the polybutene/Al 2 O 3 A masterbatch; the technological parameters of the double-screw extruder are as follows: the rotation speed is 50-150 rpm, the temperature of each working section is respectively set to be 170 +/-20 ℃, 180 +/-20 ℃, 190 +/-20 ℃, and the head temperature is 190 +/-20 ℃;
(5) Mixing polyethylene/graphene master batch with polybutylene/Al 2 O 3 Adding the master batch into a double-screw extruder for extrusion granulation to obtain a high-heat-conductivity ground heating pipe material; the technological parameters of the double-screw extruder are as follows: the rotation speed is 50-150 rpm, the temperature of each working section is respectively 170 +/-20 ℃, 180 +/-20 ℃, 200 +/-20 ℃ and the head temperature is 200 +/-20 ℃.
Preferably, the graphene is graphene with a polar group on the surface, and the polar group is a carboxyl group.
Preferably, said Al 2 O 3 Al chemically bonded with polar groups on surfaces 2 O 3 The polar group is an amino group.
The preparation method of the high-heat-conductivity floor heating pipe material comprises the following steps:
(1) Adding polyethylene, graphene, epoxy oil, stearic acid, pentaerythritol [3- (3 ',5' -di-tert-butyl-4 ' -hydroxypropyl) propionate ] and tris (2, 4-di-tert-butylphenyl) phosphite into a high-speed mixer, and mixing at high speed for 3 minutes;
(2) Adding the mixture into a double-screw extruder for extrusion granulation to obtain a polyethylene/graphene master batch; the technological parameters of the double-screw extruder are as follows: the rotation speed is 50-150 rpm, the temperature of each working section is respectively set to be 170 +/-20 ℃, 180 +/-20 ℃, 190 +/-20 ℃, and the head temperature is 190 +/-20 ℃;
(3) Mixing polybutylene and Al 2 O 3 Epoxy oil, stearic acid, pentaerythritol [3- (3 ',5' -di-tert-butyl-4 ' -hydroxypropyl) propionic acid]Ester and phosphorous acid tri (2, 4-di-tert-butyl phenyl) ester are added into a high-speed mixer and mixed for 3 minutes at high speed;
(4) Adding the mixture into a double-screw extruder for extrusion granulation to obtain the polybutene/Al 2 O 3 A masterbatch; the technological parameters of the double-screw extruder are as follows: the rotation speed is 50-150 rpm, the temperature of each working section is respectively set to be 170 +/-20 ℃, 180 +/-20 ℃, 190 +/-20 ℃, and the head temperature is 190 +/-20 ℃;
(5) Mixing polyethylene/graphene master batch with polybutylene/Al 2 O 3 Adding the master batch into a double-screw extruder for extrusion granulation to obtain the high-heat-conductivity ground heating pipe material; the technological parameters of the double-screw extruder are as follows: the rotation speed is 50-150 rpm, the temperature of each working section is respectively 170 +/-20 ℃, 180 +/-20 ℃, 200 +/-20 ℃ and the head temperature is 200 +/-20 ℃.
The heat conducting network in the high-heat-conducting floor heating pipe material comprises the following components: graphene, al 2 O 3 . The graphene is preferably graphene with polar groups on the surfaceThe polar group is a carboxyl group. The Al is 2 O 3 Al preferably chemically bonded with polar groups on the surface 2 O 3 The polar group is an amino group.
In the polyethylene/graphene master batch, polyethylene is a nonpolar polymer, graphene is a polar filler containing carboxyl groups, and the polyethylene and the graphene are phase separation systems. The polybutylene/Al 2 O 3 In the master batch, the polybutylene is nonpolar polymer, al 2 O 3 Is a polar filler containing amino groups, and the two are phase separation systems. When polyethylene/graphene master batch and polybutylene/Al 2 O 3 In the process of mixing the master batch in the double-screw extruder, because the polyethylene/graphene is a phase separation system, the interface mechanical property is poor, and the polyethylene melt is more easily broken at the interface under the action of shearing force, so that the graphene is exposed. For polybutene/Al, by the same token 2 O 3 Blending system, under the action of shearing force, the polybutene melt is in Al 2 O 3 The part is more easily broken to make Al 2 O 3 To be exposed. Therefore, in the mixing process of the two systems, the graphene and the Al are mixed 2 O 3 Meet at the interface, and the carboxyl on the surface of the graphene is reacted with Al 2 O 3 The amino on the surface is subjected to condensation reaction to generate amido bond to lead graphene and Al to be mixed 2 O 3 The heat-conducting fillers are connected to form a high-efficiency heat-conducting chain. From the component point of view, the polyethylene/polybutylene system is a bicontinuous phase, and the carboxyl and Al on the surface of the graphene occur on the interface of two phases 2 O 3 The amino on the surface is subjected to condensation reaction, and finally, the graphene and Al which are connected by chemical bonds in the system are formed 2 O 3 The heat conduction chain forms a high-efficiency heat conduction network on a polyethylene/polybutylene two-phase interface and penetrates through the whole system.
The method greatly reduces the using amount of the heat-conducting filler, and the composite material with higher heat conductivity coefficient can be obtained. The graphene new material with high price and excellent performance can be applied to the heat-conducting plastic.
Has the advantages that:
the high-thermal-conductivity floor heating pipe material prepared by the method can improve the thermal conductivity coefficient from 0.24W/mK to 1.0W/mK. Meanwhile, the mechanical property is excellent, and the related requirements of the 2 nd part pipe of heat-resistant polyethylene (PE-RT) pipeline system for GB/T28799.2-2012 cold and hot water are met.
Detailed Description
Example 1
The high-thermal-conductivity floor heating pipe material is prepared from the following components in parts by weight: 45 parts of polyethylene, 40 parts of polybutylene and Al 2 O 3 9 parts of graphene, 1.5 parts of epoxy oil, 2.8 parts of stearic acid, 1.3 parts of pentaerythritol [3- (3 ',5' -di-tert-butyl-4 ' -hydroxypropyl) propionic acid]0.15 part of ester and 0.25 part of tris (2, 4-di-tert-butylphenyl) phosphite.
The preparation method of the high-thermal-conductivity floor heating pipe material comprises the following steps: (1) Mixing polyethylene, graphene, epoxy oil, stearic acid, pentaerythritol [3- (3 ',5' -di-tert-butyl-4 ' -hydroxypropyl) propionic acid]The ester and tris (2, 4-di-t-butylphenyl) phosphite were charged into a high-speed mixer and mixed at high speed for 3 minutes. (2) Adding the mixture into a double-screw extruder for extrusion granulation to obtain the polyethylene/graphene master batch. The technological parameters of the double-screw extruder are as follows: the rotation speed is 50-150 rpm, the temperature of each working section is respectively 170 +/-20 ℃, 180 +/-20 ℃, 190 +/-20 ℃, and the head temperature is 190 +/-20 ℃. (3) Mixing polybutene, al2O3, epoxy oil, stearic acid, and pentaerythritol [3- (3 ',5' -di-tert-butyl-4 ' -hydroxypropyl) propionate]The ester and tris (2, 4-di-t-butylphenyl) phosphite were charged into a high-speed mixer and mixed at high speed for 3 minutes. (4) Adding the mixture into a double-screw extruder for extrusion granulation to obtain the polybutene/Al 2 O 3 And (3) master batch. The technological parameters of the double-screw extruder are as follows: the rotation speed is 50-150 rpm, the temperature of each working section is respectively 170 +/-20 ℃, 180 +/-20 ℃, 190 +/-20 ℃, and the head temperature is 190 +/-20 ℃. (5) Mixing polyethylene/graphene master batch with polybutylene/Al 2 O 3 And adding the master batch into a double-screw extruder for extrusion granulation to obtain the high-heat-conductivity ground heating pipe material. The technological parameters of the double-screw extruder are as follows: the rotation speed is 50-150 rpm, the temperature of each working section is respectively 170 +/-20 ℃, 180 +/-20 ℃, 200 +/-20 ℃ and the temperature of a machine headThe degree is 200 +/-20 ℃.
The heat conductivity coefficient of the high-heat-conductivity floor heating pipe material prepared according to the embodiment 1 is 1.02W/mK, the tensile strength is 21.2MPa, and the mechanical properties of the high-heat-conductivity floor heating pipe material meet the related requirements of the 2 nd part pipe of the heat-resistant polyethylene (PE-RT) pipeline system for cold and hot water in GB/T28799.2-2012.
Example 2
The high-thermal-conductivity floor heating pipe material is prepared from the following components in parts by weight: 50 parts of polyethylene, 40 parts of polybutylene and Al 2 O 3 5 parts of graphene, 1 part of epoxy oil, 2.5 parts of stearic acid, 1 part of pentaerythritol [3- (3 ',5' -di-tert-butyl-4 ' -hydroxypropyl) propionic acid]0.2 part of ester and 0.3 part of tris (2, 4-di-tert-butylphenyl) phosphite.
The preparation method of the high-thermal-conductivity floor heating pipe material comprises the following steps: (1) Mixing polyethylene, graphene, epoxy oil, stearic acid, pentaerythritol [3- (3 ',5' -di-tert-butyl-4 ' -hydroxypropyl) propionic acid]The ester and tris (2, 4-di-t-butylphenyl) phosphite were charged into a high-speed mixer and mixed at high speed for 3 minutes. (2) Adding the mixture into a double-screw extruder for extrusion granulation to obtain the polyethylene/graphene master batch. The technological parameters of the double-screw extruder are as follows: the rotation speed is 50-150 rpm, the temperature of each working section is respectively set to be 170 +/-20 ℃, 180 +/-20 ℃, 190 +/-20 ℃ and the head temperature is 190 +/-20 ℃. (3) Mixing polybutylene and Al 2 O 3 Epoxy oil, stearic acid, pentaerythritol [3- (3 ',5' -di-tert-butyl-4 ' -hydroxypropyl) propionic acid]The ester and tris (2, 4-di-t-butylphenyl) phosphite were charged into a high-speed mixer and mixed at high speed for 3 minutes. (4) Adding the mixture into a double-screw extruder for extrusion granulation to obtain the polybutene/Al 2 O 3 And (3) master batch. The technological parameters of the double-screw extruder are as follows: the rotation speed is 50-150 rpm, the temperature of each working section is respectively 170 +/-20 ℃, 180 +/-20 ℃, 190 +/-20 ℃, and the head temperature is 190 +/-20 ℃. (5) Mixing polyethylene/graphene master batch with polybutylene/Al 2 O 3 And adding the master batch into a double-screw extruder for extrusion granulation to obtain the high-heat-conductivity ground heating pipe material. The technological parameters of the double-screw extruder are as follows: the rotating speed is 50-150 rpm, the temperature of each working section is respectively set to 170 +/-20 ℃, 180 +/-20℃,200 plus or minus 20 ℃, 200 plus or minus 20 ℃ and the temperature of the machine head is 200 plus or minus 20 ℃.
The heat conductivity coefficient of the high-heat-conductivity floor heating pipe material prepared according to the embodiment 2 is 0.82W/mK, the tensile strength is 19.8MPa, and the mechanical properties of the high-heat-conductivity floor heating pipe material meet the related requirements of the 2 nd part pipe of the heat-resistant polyethylene (PE-RT) pipeline system for cold and hot water in GB/T28799.2-2012.
The invention has been described in an illustrative manner, and it should be understood that the above-described embodiments are illustrative only and are not to be considered as limiting the scope of the invention, as any simple variations, modifications or other equivalent substitutions which may occur to those skilled in the art without departing from the spirit and scope of the invention.
Claims (4)
1. The high-heat-conductivity floor heating pipe material is characterized by being prepared from the following components in parts by weight: 45 parts of polyethylene, 40 parts of polybutylene and Al 2 O 3 9 parts of graphene, 1.5 parts of epoxy oil, 2.8 parts of stearic acid, 1.3 parts of pentaerythritol [3- (3 ',5' -di-tert-butyl-4 ' -hydroxypropyl) propionic acid]0.15 part of ester, 0.25 part of tris (2, 4-di-tert-butylphenyl) phosphite;
the high-heat-conductivity ground heating pipe material is internally provided with an efficient heat-conducting network which is formed by graphene and Al which are connected through chemical bonds 2 O 3 The heat conduction chain is formed on the polyethylene/polybutylene two-phase interface and penetrates through the whole material system;
the preparation method of the high-heat-conductivity heating pipe material comprises the following steps:
(1) Adding polyethylene, graphene, epoxy oil, stearic acid, pentaerythritol [3- (3 ',5' -di-tert-butyl-4 ' -hydroxypropyl) propionate ] and tris (2, 4-di-tert-butylphenyl) phosphite into a high-speed mixer, and mixing at high speed for 3 minutes;
(2) Adding the mixture into a double-screw extruder for extrusion granulation to obtain polyethylene/graphene master batch; the technological parameters of the double-screw extruder are as follows: the rotation speed is 50-150 rpm, the temperature of each working section is respectively set to be 170 +/-20 ℃, 180 +/-20 ℃, 190 +/-20 ℃, and the head temperature is 190 +/-20 ℃;
(3) Mixing polybutylene and Al 2 O 3 Epoxy oil, stearic acid, pentaerythritol [3- (3 ',5' -di-tert-butyl-4 ' -hydroxypropyl) propionic acid]Adding ester and tris (2, 4-di-tert-butylphenyl) phosphite into a high-speed mixer, and mixing at high speed for 3 minutes;
(4) Adding the mixture into a double-screw extruder for extrusion granulation to obtain the polybutene/Al 2 O 3 A masterbatch; the technological parameters of the double-screw extruder are as follows: the rotation speed is 50-150 rpm, the temperature of each working section is respectively set to be 170 +/-20 ℃, 180 +/-20 ℃, 190 +/-20 ℃, and the head temperature is 190 +/-20 ℃;
(5) Mixing polyethylene/graphene master batch with polybutylene/Al 2 O 3 Adding the master batch into a double-screw extruder for extrusion granulation to obtain a high-heat-conductivity ground heating pipe material; the technological parameters of the double-screw extruder are as follows: the rotation speed is 50-150 rpm, the temperature of each working section is respectively 170 +/-20 ℃, 180 +/-20 ℃, 200 +/-20 ℃ and the head temperature is 200 +/-20 ℃.
2. The high thermal conductivity floor heating pipe material according to claim 1, wherein the graphene is graphene having a polar group on the surface, and the polar group is a carboxyl group.
3. The material as claimed in claim 1, wherein the Al is selected from the group consisting of Al, and Al 2 O 3 Al chemically bonded to the surface of polar groups 2 O 3 The polar group is an amino group.
4. The method for preparing a heating pipe material with high thermal conductivity according to any one of claims 1 to 3, characterized by comprising the steps of:
(1) Adding polyethylene, graphene, epoxy oil, stearic acid, pentaerythritol [3- (3 ',5' -di-tert-butyl-4 ' -hydroxypropyl) propionate ] and tris (2, 4-di-tert-butylphenyl) phosphite into a high-speed mixer, and mixing at high speed for 3 minutes;
(2) Adding the mixture into a double-screw extruder for extrusion granulation to obtain polyethylene/graphene master batch; the technological parameters of the double-screw extruder are as follows: the rotation speed is 50-150 rpm, the temperature of each working section is respectively set to be 170 +/-20 ℃, 180 +/-20 ℃, 190 +/-20 ℃, and the head temperature is 190 +/-20 ℃;
(3) Adding polybutene, al2O3, epoxy oil, stearic acid, pentaerythritol [3- (3 ',5' -di-tert-butyl-4 ' -hydroxypropyl) propionate ] and tris (2, 4-di-tert-butylphenyl) phosphite into a high-speed mixer, and mixing at high speed for 3 minutes;
(4) Adding the mixture into a double-screw extruder for extrusion granulation to obtain the polybutene/Al 2 O 3 A masterbatch; the technological parameters of the double-screw extruder are as follows: the rotation speed is 50-150 rpm, the temperature of each working section is respectively set to be 170 +/-20 ℃, 180 +/-20 ℃, 190 +/-20 ℃, and the head temperature is 190 +/-20 ℃;
(5) Mixing polyethylene/graphene master batch with polybutylene/Al 2 O 3 Adding the master batch into a double-screw extruder for extrusion granulation to obtain the high-heat-conductivity ground heating pipe material; the technological parameters of the double-screw extruder are as follows: the rotation speed is 50-150 rpm, the temperature of each working section is respectively set to be 170 +/-20 ℃, 180 +/-20 ℃, 200 +/-20 ℃ and the head temperature is 200 +/-20 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210888982.7A CN115386155A (en) | 2017-06-12 | 2017-06-12 | High-thermal-conductivity floor heating pipe material and preparation method thereof |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710436741.8A CN107337830A (en) | 2017-06-12 | 2017-06-12 | A kind of high heat conduction floor heating pipe material and preparation method thereof |
| CN202210888982.7A CN115386155A (en) | 2017-06-12 | 2017-06-12 | High-thermal-conductivity floor heating pipe material and preparation method thereof |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710436741.8A Division CN107337830A (en) | 2017-06-12 | 2017-06-12 | A kind of high heat conduction floor heating pipe material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
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| CN115386155A true CN115386155A (en) | 2022-11-25 |
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| CN103524859A (en) * | 2012-07-05 | 2014-01-22 | 中国石油化工股份有限公司 | Graphite-containing heat-conducting polyethylene master batch and preparation method and composition thereof |
| CN104672604A (en) * | 2013-11-27 | 2015-06-03 | 绵阳市盛宇新材料有限公司 | Heat-conducting plastic and preparation method thereof |
| CN105175907A (en) * | 2015-07-29 | 2015-12-23 | 徐继煌 | Thermal conductive plastic alloy, radiator based on alloy and preparation method |
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| CN103524859A (en) * | 2012-07-05 | 2014-01-22 | 中国石油化工股份有限公司 | Graphite-containing heat-conducting polyethylene master batch and preparation method and composition thereof |
| CN104672604A (en) * | 2013-11-27 | 2015-06-03 | 绵阳市盛宇新材料有限公司 | Heat-conducting plastic and preparation method thereof |
| CN105175907A (en) * | 2015-07-29 | 2015-12-23 | 徐继煌 | Thermal conductive plastic alloy, radiator based on alloy and preparation method |
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