CN105175873A - Soft reflective heat-shrinkable protecting pipe and production method thereof - Google Patents
Soft reflective heat-shrinkable protecting pipe and production method thereof Download PDFInfo
- Publication number
- CN105175873A CN105175873A CN201510506244.1A CN201510506244A CN105175873A CN 105175873 A CN105175873 A CN 105175873A CN 201510506244 A CN201510506244 A CN 201510506244A CN 105175873 A CN105175873 A CN 105175873A
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- reflective
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- casing pipe
- thermal shrinkable
- shrinkable casing
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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
- C08L23/08—Copolymers of ethene
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C08L23/0853—Vinylacetate
-
- 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
- C08L2203/18—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
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- 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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention discloses a soft reflective heat-shrinkable protecting pipe and a production method thereof. The soft reflective heat-shrinkable protecting pipe is prepared from the following materials by weight: 40 to 80 parts of matrix resin, 10 to 30 parts of copolymerized elastomer, 20 to 50 parts of a filling material, 10 to 50 parts of reflective powder, 0 to 5 parts of a cross-linking sensitizing agent, 2 to 6 parts of an anti-oxidant, 1 to 6 parts of a lubricant and 0 to 10 parts of color masterbatch. The soft reflective heat-shrinkable protecting pipe has excellent reflective effect, and the actually measured retroreflection coefficient value of the pipe is more than or equal to 100 cd.lx-1.m-2, which accords with requirements on luminosity performance reflective membranes II for road traffic; and the protecting pipe has a heat-shrinkable function and can exert warning and protection effects when installed on traffic facilities and the like. The soft reflective heat-shrinkable protecting pipe can pass tests of solvent resistance, low-and-high temperature resistance and weatherability for road traffic reflective membranes II prescribed in GB/T18833-2002.
Description
Technical field
The present invention relates to a kind of soft reflective thermal shrinkable casing pipe and production method thereof.
Background technology
Thermal shrinkable casing pipe is widely used in the equipment such as electric power, machinery, plays mark, insulation and provide protection.Because it does not have a reflective, in the mark that can not be applied to traffic facilities and protection.Along with the input that China's traffic base is built, the thermal shrinkable casing pipe possessing soft light-reflecting property future will have more wide application prospect.Therefore, be badly in need of a kind of novel soft heat reflective contracting protecting pipe of exploitation, meet the need of market.
Summary of the invention
The object of the invention is to for the problems referred to above, a kind of soft reflective thermal shrinkable casing pipe is provided.
For reaching above-mentioned purpose, the reflective thermal shrinkable casing pipe of softness provided by the present invention, the material of preparing of described thermal shrinkable casing pipe comprises by weight:
Matrix resin 40-80 part;
Copolymer elastomer 10-30 part;
Filler 20-50 part;
Reflective powder 10-50 part;
Crosslinking sensitizer 0-5 part;
Oxidation inhibitor 2-6 part;
Lubricant 1-6 part;
Look female 0-10 part.
Preferably, described matrix resin is the one or several in Low Density Polyethylene, ultra-low density polyethylene, ethylene vinyl acetate, ethylene methyl acrylate copolymer, ethylenemethylmethacrylate multipolymer, ethylene butyl acrylate multipolymer.
Preferably, described copolymer elastomer is the one or several in ethylene-propylene copolymer, ethylene-butene copolymer, ethylene-octene copolymer.
Preferably, described filler is nanometer aluminium silicate, calcium carbonate, talcum powder, de-one or several of covering in soil, kaolin, silicon-dioxide.
Preferably, described reflective powder is glass microballon, particle diameter 200-500 order, specific refractory power ND >=1.90.
Preferably, described sensitization linking agent is the one or several in trimethylolpropane tris (methyl) acrylate, Viscoat 295, tetramethylol methane tetraacrylate, triallyl isocyanate or 1,3 butylene glycol dimethacrylate.
Preferably, described oxidation inhibitor weight ratio 1:(1 ~ 2) Hinered phenols antioxidant and suffocated amine antioxidant coordinate recombiner.
Preferably, described Hinered phenols antioxidant be following one or more: four [methyl-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester; 1,3,5-trimethylammonium-2,4,6-tri-(3,5-di-tert-butyl-4-hydroxyl benzyl) benzene; 3,5-di-tert-butyl-hydroxy phenyl propionic acid octadecanol ester; 2,2'-thiobis (4-methyl-6-tertiary butyl phenol); N, N'-pair-[3-(3,5-di-tert-butyl-hydroxy phenyl) propionyl] hexanediamine; 4,4 '-thiobis (the 6-tertiary butyl-3-methylphenol).
Preferably, described suffocated amine antioxidant be following one or more: 2-thiol group benzimidazolyl; N-Phenyl beta naphthylamine; N, N'-bis-(betanaphthyl) Ursol D; 2-thiol group benzimidazolyl zinc salt; N-phenyl-a-naphthylamine.
Preferably, described lubricant is the one or several in Zinic stearas, polyethylene wax, Magnesium Stearate, stearic acid, calcium stearate.
The present invention also provides the production method of the reflective thermal shrinkable casing pipe of a kind of softness, comprises the steps:
(1) material of preparing of reflective for above-mentioned softness thermal shrinkable casing pipe is weighed;
(2) material is prepared through mixer mixing granulation or parallel double-screw extruder mixing granulator after step (1) being weighed, then by single screw extrusion machine extruding pipe material or carry out double-layer coextrusion and go out tubing;
(3) aforementioned tubes is through Co 60 or rumbatron 60-150KGY cross-linking radiation, and the tubing of cross-linking radiation adds thermal enlargement 2-4 doubly in 100-150 DEG C of glycerine.
The present invention compared with prior art has the following advantages and effect:
The soft reflective thermal shrinkable casing pipe of the present invention has excellent reflecting effect, actual measurement retro-reflecting coefficient value is more than or equal to 100cdlx-1m-2(GB/T18833-2002 method, observing angle 0.2 °, input angle-4 °), meet the photometric performance requirements of road traffic tapetum lucidum II class.There is heat shrink function, be arranged on traffic facilities etc. and play warning and protective effect.
The soft reflective thermal shrinkable casing pipe of the present invention is by the solvent resistant of GB/T18833-2002 road traffic tapetum lucidum II class tapetum lucidum, high-low temperature resistant and weather test.
Embodiment
In order to describe technology contents of the present invention, the effect realized and object in detail, illustrate below in conjunction with embodiment, embodiment is not construed as limiting the invention.
Embodiment 1
Step 1: take ethylene vinyl acetate (vinyl acetate content is 14%) 80 parts by weight, ethylene-butene copolymer 20 parts, 40 parts, calcium carbonate, 40 parts, the reflective powder of grey (500 order), trimethylolpropane tris (methyl) acrylate 3 parts, 3 parts of oxidation inhibitor (wherein, 1 part of antioxidant 1010 (four [β-(3, 5-di-tert-butyl-hydroxy phenyl) propionic ester] pentaerythritol ester), 1 part of anti-oxidant DLTP (Tyox B), 1 part of sebacic acid two-2, 2, 6, 6-tetramethylpiperidinol), 2 parts of lubricant (wherein 0.5 part of stearic acid acid amides, 1 part of Zinic stearas, 0.5 part of 110 methyl vinyl silicone rubber), 3 parts yellow female.Through mixer mixing granulation or parallel double-screw extruder mixing granulator, be then extruded into tubing with single screw extrusion machine.
Step 2: by above-mentioned sleeve pipe work in-process through rumbatron or cobalt source or ultraviolet source irradiation, irradiation dose is 7Mrad;
Step 3: the tubing of cross-linking radiation exists: add thermal enlargement 2 times in 140 DEG C of glycerine, cooling and shaping, namely obtains soft reflecting sheath pipe.
Result is obtained to above-mentioned heat-shrink tube test as follows: contraction ratio is more than or equal to 2:1; Tensile strength 8.1MPa; Elongation at break 280%; Use temperature scope-30 DEG C is to 90 DEG C; Thermal shocking 160 DEG C, 4 hours, flawless, without viscosity flow; By the solvent resistant of GB/T18833-2002 road traffic tapetum lucidum II class tapetum lucidum, high-low temperature resistant and weather test; Environmental-protecting performance meets European Union RoHS environmental protection standard.
Embodiment 2
Step 1: take ethylene vinyl acetate (vinyl acetate content is 28%) 40 parts by weight, ethylene methyl acrylate copolymer (methyl acrylate content is 12%) 40 parts, ethylene-butene copolymer 10 parts, 30 parts, calcium carbonate, 45 parts, the reflective powder of grey (500 order), trimethylolpropane tris (methyl) acrylate 3 parts, 3.5 parts of oxidation inhibitor (wherein, 1 part of antioxidant 1010 (four [β-(3, 5-di-tert-butyl-hydroxy phenyl) propionic ester] pentaerythritol ester), 1 part of anti-oxidant DLTP (Tyox B), 1.5 parts of 2-(2-hydroxyls-3, 5-di-tert-butyl-phenyl)-5-chlorinated benzotriazole), 2.5 parts of lubricant (wherein 1 part of polyethylene, 1 part of Zinic stearas, 0.5 part of 110 methyl vinyl silicone rubber), 4 parts yellow female.Through mixer mixing granulation or parallel double-screw extruder mixing granulator, be then extruded into tubing with single screw extrusion machine.
Step 2: by above-mentioned sleeve pipe work in-process through rumbatron or cobalt source or ultraviolet source irradiation, irradiation dose is 8Mrad;
Step 3: the tubing of cross-linking radiation exists: add thermal enlargement 2 times in 130 DEG C of glycerine, cooling and shaping, namely obtains soft reflecting sheath pipe.
Result is obtained to above-mentioned heat-shrink tube test as follows: contraction ratio is more than or equal to 2:1; Tensile strength 9.3MPa; Elongation at break 310%; Use temperature scope-40 DEG C is to 90 DEG C; Thermal shocking 160 DEG C, 4 hours, flawless, without viscosity flow; By the solvent resistant of GB/T18833-2002 road traffic tapetum lucidum II class tapetum lucidum, high-low temperature resistant and weather test; Environmental-protecting performance meets European Union RoHS environmental protection standard.
Embodiment 3
Step 1: take ethylene vinyl acetate (vinyl acetate content is 18%) 70 parts by weight, ethylene-propylene copolymer 30 parts, 30 parts, calcium carbonate, 50 parts, the reflective powder of grey (500 order), trimethylolpropane tris (methyl) acrylate 3 parts, 3 parts of oxidation inhibitor (wherein, 1 part of antioxidant 1010 (four [β-(3, 5-di-tert-butyl-hydroxy phenyl) propionic ester] pentaerythritol ester), 1 part of anti-oxidant DLTP (Tyox B), 1 part of sebacic acid two-2, 2, 6, 6-tetramethylpiperidinol), 2 parts of lubricant (wherein 0.5 part of stearic acid acid amides, 1 part of Zinic stearas, 0.5 part of 110 methyl vinyl silicone rubber), 3 parts yellow female.Through mixer mixing granulation or parallel double-screw extruder mixing granulator, be then extruded into tubing with single screw extrusion machine.
Step 2: by above-mentioned sleeve pipe work in-process through rumbatron or cobalt source or ultraviolet source irradiation, irradiation dose is 6Mrad;
Step 3: the tubing of cross-linking radiation exists: add thermal enlargement 2 times in 140 DEG C of glycerine, cooling and shaping, namely obtains soft reflecting sheath pipe.
Result is obtained to above-mentioned heat-shrink tube test as follows: contraction ratio is more than or equal to 2:1; Tensile strength 8.0MPa; Elongation at break 350%; Use temperature scope-45 DEG C is to 90 DEG C; Thermal shocking 160 DEG C, 4 hours, flawless, without viscosity flow; By the solvent resistant of GB/T18833-2002 road traffic tapetum lucidum II class tapetum lucidum, high-low temperature resistant and weather test; Environmental-protecting performance meets European Union RoHS environmental protection standard.
Embodiment 4
Step 1: take ethylene vinyl acetate (vinyl acetate content is 28%) 75 parts by weight, ethylenemethylmethacrylate multipolymer 25 parts, 40 parts, calcium carbonate, 60 parts, the reflective powder of grey (500 order), trimethylolpropane tris (methyl) acrylate 3 parts, 4 parts of oxidation inhibitor (wherein, 2 parts of antioxidant 1010 (four [β-(3, 5-di-tert-butyl-hydroxy phenyl) propionic ester] pentaerythritol ester), 1 part of anti-oxidant DLTP (Tyox B), 1 part of sebacic acid two-2, 2, 6, 6-tetramethylpiperidinol), 3 parts of lubricant (wherein 1 part of stearic acid acid amides, 1 part of Zinic stearas, 1 part of 110 methyl vinyl silicone rubber), 3 parts yellow female.Through mixer mixing granulation or parallel double-screw extruder mixing granulator.
Step 2: adopt double threaded screw forcing machine to carry out double-layer coextrusion and go out, outer layered material is ethylene vinyl acetate (vinyl acetate content is 28%).
Step 3: by above-mentioned sleeve pipe work in-process through rumbatron or cobalt source or ultraviolet source irradiation, irradiation dose is 7.5Mrad;
Step 4: the tubing of cross-linking radiation exists: add thermal enlargement 2 times in 145 DEG C of glycerine, cooling and shaping, namely obtains soft reflecting sheath pipe.
Result is obtained to above-mentioned heat-shrink tube test as follows: contraction ratio is more than or equal to 2:1; Tensile strength 8.8MPa; Elongation at break 335%; Use temperature scope-45 DEG C is to 90 DEG C; Thermal shocking 160 DEG C, 4 hours, flawless, without viscosity flow; By the solvent resistant of GB/T18833-2002 road traffic tapetum lucidum II class tapetum lucidum, high-low temperature resistant and weather test; Environmental-protecting performance meets European Union RoHS environmental protection standard.
Claims (11)
1. the reflective thermal shrinkable casing pipe of softness, is characterized in that: the material of preparing of described thermal shrinkable casing pipe comprises by weight:
Matrix resin 40-80 part;
Copolymer elastomer 10-30 part;
Filler 20-50 part;
Reflective powder 10-50 part;
Crosslinking sensitizer 0-5 part;
Oxidation inhibitor 2-6 part;
Lubricant 1-6 part;
Look female 0-10 part.
2. the reflective thermal shrinkable casing pipe of softness according to claim 1, is characterized in that: described matrix resin is the one or several in Low Density Polyethylene, ultra-low density polyethylene, ethylene vinyl acetate, ethylene methyl acrylate copolymer, ethylenemethylmethacrylate multipolymer, ethylene butyl acrylate multipolymer.
3. the reflective thermal shrinkable casing pipe of softness according to claim 1, is characterized in that: described copolymer elastomer is the one or several in ethylene-propylene copolymer, ethylene-butene copolymer, ethylene-octene copolymer.
4. the reflective thermal shrinkable casing pipe of softness according to claim 1, is characterized in that: described filler is nanometer aluminium silicate, calcium carbonate, talcum powder, de-one or several of covering in soil, kaolin, silicon-dioxide.
5. the reflective thermal shrinkable casing pipe of softness according to claim 1, is characterized in that: described reflective powder is glass microballon, particle diameter 200-500 order, specific refractory power ND >=1.90.
6. the reflective thermal shrinkable casing pipe of softness according to claim 1, it is characterized in that: described sensitization linking agent is the one or several in trimethylolpropane tris (methyl) acrylate, Viscoat 295, tetramethylol methane tetraacrylate, triallyl isocyanate or 1,3 butylene glycol dimethacrylate.
7. the reflective thermal shrinkable casing pipe of softness according to claim 1, is characterized in that: described oxidation inhibitor weight ratio 1:(1 ~ 2) Hinered phenols antioxidant and suffocated amine antioxidant coordinate recombiner.
8. the reflective thermal shrinkable casing pipe of softness according to claim 7, is characterized in that: described Hinered phenols antioxidant be following one or more: four [methyl-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester; 1,3,5-trimethylammonium-2,4,6-tri-(3,5-di-tert-butyl-4-hydroxyl benzyl) benzene; 3,5-di-tert-butyl-hydroxy phenyl propionic acid octadecanol ester; 2,2'-thiobis (4-methyl-6-tertiary butyl phenol); N, N'-pair-[3-(3,5-di-tert-butyl-hydroxy phenyl) propionyl] hexanediamine; 4,4 '-thiobis (the 6-tertiary butyl-3-methylphenol).
9. the reflective thermal shrinkable casing pipe of softness according to claim 7, is characterized in that: described suffocated amine antioxidant be following one or more: 2-thiol group benzimidazolyl; N-Phenyl beta naphthylamine; N, N'-bis-(betanaphthyl) Ursol D; 2-thiol group benzimidazolyl zinc salt; N-phenyl-a-naphthylamine.
10. the reflective thermal shrinkable casing pipe of softness according to claim 1, is characterized in that: described lubricant is the one or several in Zinic stearas, polyethylene wax, Magnesium Stearate, stearic acid, calcium stearate.
The production method of 11. 1 kinds of reflective thermal shrinkable casing pipes of softness, is characterized in that comprising the steps:
(1) material of preparing of reflective thermal shrinkable casing pipe soft described in any one of claim 1 to 10 is weighed;
(2) material is prepared through mixer mixing granulation or parallel double-screw extruder mixing granulator after step (1) being weighed, then by single screw extrusion machine extruding pipe material or carry out double-layer coextrusion and go out tubing;
(3) aforementioned tubes is through Co 60 or rumbatron 60-150KGY cross-linking radiation, and the tubing of cross-linking radiation adds thermal enlargement 2-4 doubly in 100-150 DEG C of glycerine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510506244.1A CN105175873A (en) | 2015-08-17 | 2015-08-17 | Soft reflective heat-shrinkable protecting pipe and production method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510506244.1A CN105175873A (en) | 2015-08-17 | 2015-08-17 | Soft reflective heat-shrinkable protecting pipe and production method thereof |
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| CN201510506244.1A Pending CN105175873A (en) | 2015-08-17 | 2015-08-17 | Soft reflective heat-shrinkable protecting pipe and production method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106221201A (en) * | 2016-08-30 | 2016-12-14 | 国网山东省电力公司日照供电公司 | A kind of protection of electric power facility reflectorized material and preparation method thereof |
| CN107022133A (en) * | 2017-05-04 | 2017-08-08 | 大连联合高分子材料有限公司 | A kind of heat-shrinkable T bush composition and its application on aluminum pipe of automotive air conditioner road |
| CN107418024A (en) * | 2017-05-27 | 2017-12-01 | 苏州新区特氟龙塑料制品厂 | A kind of high-wearing feature reflective plastic |
| CN108017832A (en) * | 2017-12-24 | 2018-05-11 | 广州宝之泰电子科技有限公司 | A kind of 150 DEG C of ethylene-butyl acrylate copolymer elastomer heat-shrink tubes of uvioresistant high fire-retardance heatproof and preparation method thereof |
| CN108329558A (en) * | 2017-12-29 | 2018-07-27 | 浙江省三门中鑫实业有限公司 | A kind of environment-friendly type extrusion sheet and its manufacturing method |
| CN109354751A (en) * | 2018-11-20 | 2019-02-19 | 上海长园电子材料有限公司 | A kind of thermally conductive, insulation, anti-sticking anti-heat ageing heat-shrink tube and preparation method thereof |
| CN110092967A (en) * | 2019-04-26 | 2019-08-06 | 江苏达胜热缩防护用品有限公司 | A kind of preparation method of double layer continuous conduction insulated compound heat-shrink tube |
| CN110564042A (en) * | 2019-09-20 | 2019-12-13 | 深圳市宏商材料科技股份有限公司 | composition for preparing conductive heat-shrinkable composite material, conductive heat-shrinkable composite material and preparation method thereof |
| CN117549527A (en) * | 2024-01-12 | 2024-02-13 | 江苏华侃核电器材科技有限公司 | High-radiation-resistant heat-shrinkable tube for nuclear power station and preparation method thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106221201A (en) * | 2016-08-30 | 2016-12-14 | 国网山东省电力公司日照供电公司 | A kind of protection of electric power facility reflectorized material and preparation method thereof |
| CN107022133A (en) * | 2017-05-04 | 2017-08-08 | 大连联合高分子材料有限公司 | A kind of heat-shrinkable T bush composition and its application on aluminum pipe of automotive air conditioner road |
| CN107418024A (en) * | 2017-05-27 | 2017-12-01 | 苏州新区特氟龙塑料制品厂 | A kind of high-wearing feature reflective plastic |
| CN108017832A (en) * | 2017-12-24 | 2018-05-11 | 广州宝之泰电子科技有限公司 | A kind of 150 DEG C of ethylene-butyl acrylate copolymer elastomer heat-shrink tubes of uvioresistant high fire-retardance heatproof and preparation method thereof |
| CN108329558A (en) * | 2017-12-29 | 2018-07-27 | 浙江省三门中鑫实业有限公司 | A kind of environment-friendly type extrusion sheet and its manufacturing method |
| CN109354751A (en) * | 2018-11-20 | 2019-02-19 | 上海长园电子材料有限公司 | A kind of thermally conductive, insulation, anti-sticking anti-heat ageing heat-shrink tube and preparation method thereof |
| CN110092967A (en) * | 2019-04-26 | 2019-08-06 | 江苏达胜热缩防护用品有限公司 | A kind of preparation method of double layer continuous conduction insulated compound heat-shrink tube |
| CN110564042A (en) * | 2019-09-20 | 2019-12-13 | 深圳市宏商材料科技股份有限公司 | composition for preparing conductive heat-shrinkable composite material, conductive heat-shrinkable composite material and preparation method thereof |
| CN117549527A (en) * | 2024-01-12 | 2024-02-13 | 江苏华侃核电器材科技有限公司 | High-radiation-resistant heat-shrinkable tube for nuclear power station and preparation method thereof |
| CN117549527B (en) * | 2024-01-12 | 2024-04-19 | 江苏华侃核电器材科技有限公司 | High-radiation-resistant heat-shrinkable tube for nuclear power station and preparation method thereof |
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Application publication date: 20151223 |