CN104672690A - Foamable composition for electric cable - Google Patents
Foamable composition for electric cable Download PDFInfo
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- CN104672690A CN104672690A CN201310629330.2A CN201310629330A CN104672690A CN 104672690 A CN104672690 A CN 104672690A CN 201310629330 A CN201310629330 A CN 201310629330A CN 104672690 A CN104672690 A CN 104672690A
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- electric wire
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- foamable composite
- machine barrel
- component
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Classifications
-
- 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
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- 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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
- H01B3/443—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from vinylhalogenides or other halogenoethylenic compounds
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- 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
- C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08J2327/06—Homopolymers or copolymers of vinyl chloride
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
Abstract
The invention discloses a foamable composition for an electric cable. The foamable composition comprises the following components in parts by weight: polyvinyl chloride, a foaming agent, a stabilizer, a plasticizer, filler, an antioxidant and a lubricating agent, wherein the components are mixed by a high-speed mixer, discharged and then extruded by a screw extruder to obtain the foamable composition. The electric cable prepared from the foamable composition is uniform in foam hole distribution by adopting a foamed polymer material, satisfies the required specifications of the electric cable in electric performance and mechanical properties and can save more than 10% of used materials in comparison with an unfoamed material, so the cost is effectively lowered and social resources are saved.
Description
Technical field
The present invention relates to electric wire foamable composite, particularly relate to and be a kind ofly specially adapted to the insulating material in electric wire field and the foamable composite of sheath material.
Technical background
Along with socio-economic development and town and country construction need, electric wire is widely used in the multiple fields such as communication, transport, automobile.Current electric wire has become the domestic second largest industry except automobile, domesticly has thousands of family of cable factory.Although but domestic cable factory is numerous, technology content is not high, the competition of price malice is abnormal fierce, even occurs a lot of defective cable.Major cause lacks both to meet national standard requirement, and cost is competitive electric wire insulation and sheath material again.
Polyvinyl chloride is one of most widely used most important wire cable insulating material and sheath material, in order to obtain the good and electric wire and cable material that cost is low of quality in actual production, pvc material can be foamed by interpolation whipping agent and other additives, obtain a kind of pvc material of foam layer structure, the foaming quality of this material depends on many components, such as, the type of whipping agent and quality, the type of polyvinyl chloride used, the type etc. of softening agent, in the course of processing of pvc material, its physicals and chemical property all can change a lot, thus affect the viscosity Sum decomposition temperature of polyvinyl chloride melt, and then affect the performance of its foaming effect and material.
In prior art, polyvinyl-chloride foam material can be used for the floor of sound insulation, the aspects such as warming wallpaper, but it is little in the application in electric wire field for it, and due to the singularity in electric wire field, the insulating material make polyvinyl-chloride foam material and sheath material not only require that its foaming effect is good, uniform in foaming, and require that it possesses specific electric property, mechanical property, also higher to the requirement of its usage safety performance.
Summary of the invention
The object of the invention is to for above-mentioned Problems existing, propose the low mechanical property of a kind of cost and the good electric wire foamable composite of electrical property, said composition is used for insulating material in electric wire and sheath material.
To achieve these goals and other objects, present invention employs following technical scheme:
The invention discloses a kind of electric wire foamable composite, described foamable composite comprises the component of following weight part:
Preferably, foamable composite of the present invention comprises the component of following weight part:
Preferably, the polymerization degree of described polyvinyl chloride is 800-3000.
More preferably, the polymerization degree of described polyvinyl chloride is 1000.
Preferably, described whipping agent is selected from one or more in Cellmic C 121, Diisopropyl azodicarboxylate, p-toluene sulfonylsemicarbazide and dinitrosopentamethlyene tetramine.
More preferably, described whipping agent is Cellmic C 121.
Preferably, described weighting agent is selected from one or more in Calcium carbonate weighting agent, potter's clay and polynite.
Preferably, described stablizer is selected from one or more in lead salts, organic tin, metal soap and environment-friendly calcium/zinc class.
More preferably, described stablizer is environment-friendly calcium/zinc stabilizer.Such as CZ200 environment-friendly calcium/zinc stabilizer.
Preferably, described softening agent is selected from one or more in dioctyl terephthalate, dioctyl phthalate (DOP), dibutyl phthalate and Octyl adipate.
Preferably, described oxidation inhibitor is selected from one or both in dihydroxyphenyl propane and phosphite.
The invention also discloses the preparation method of electric wire foamable composite described above, comprise the steps:
1) a certain amount of each component is taken according to proportioning;
2) above-mentioned each component is put into high-speed mixer to mix, mix rear discharging;
3) each component mixed is added extruding pelletization in screw machine, the rotating speed of forcing machine is 20-80 rev/min, and extrusion temperature is 120-180 DEG C.
Above-mentioned steps 3) described in screw extrusion press temperature be set to: machine barrel one district 120-140 DEG C, machine barrel two district 130-150 DEG C, machine barrel three district 140-160 DEG C, machine barrel four district 150-170 DEG C, machine barrel five district 160-180 DEG C, head and mould 160-180 DEG C.
Compared with prior art, in electric wire foamable composite disclosed in this invention, each component cooperatively interacts, common coordinative role, stable processing technique, the distribution of cells of the composition of this combination are even, its electric property and mechanical property meet electric wire requirement specification, the electric wire foamed polymer material using the foamable composite in the present invention to produce can reduce costs effectively, saves social resources.
Embodiment
Below by way of specific specific examples, embodiments of the present invention are described, those skilled in the art the content disclosed by this specification sheets can understand other advantages of the present invention and effect easily.The present invention can also be implemented or be applied by embodiments different in addition, and the every details in this specification sheets also can based on different viewpoints and application, carries out various modification or change not deviating under spirit of the present invention.
Comparative example 1
1) get the raw materials ready according to component listed in comparative example in table 11 and content;
2) above-mentioned each component is put into high-speed mixer, with the speed high-speed mixing about 3 minutes of 2000rpm;
3) with the speed low speed discharging of 500rpm;
4) each component mixed is added extruding pelletization in screw machine, the rotating speed of forcing machine is 80 revs/min, and extrusion temperature is 120-180 DEG C.
Above-mentioned steps 4) described in screw extrusion press temperature be set to: machine barrel one district 120-140 DEG C, machine barrel two district 130-150 DEG C, machine barrel three district 140-160 DEG C, machine barrel four district 150-170 DEG C, machine barrel five district 160-180 DEG C, head and mould 160-180 DEG C.
The poly polymerization degree described in table 1 comparative example 1 is 1000, and softening agent is dioctyl terephthalate, and stablizer is the calcium/zinc stabilizer of CZ200.For not adding component and the content of the not polyethylene foamed material of whipping agent in comparative example 1.
Embodiment 1
1) get the raw materials ready according to component listed in embodiment in table 11 and content;
2) above-mentioned each component is put into high-speed mixer, with the speed high-speed mixing about 3 minutes of 2000rpm;
3) with the speed low speed discharging of 500rpm;
4) each component mixed is added extruding pelletization in screw machine, the rotating speed of forcing machine is 80 revs/min, and extrusion temperature is 120-180 DEG C, thus obtained electric wire foamable composite.
Above-mentioned steps 4) described in screw extrusion press temperature be set to: machine barrel one district 120-140 DEG C, machine barrel two district 130-150 DEG C, machine barrel three district 140-160 DEG C, machine barrel four district 150-170 DEG C, machine barrel five district 160-180 DEG C, head and mould 160-180 DEG C.
The poly polymerization degree described in table 1 embodiment 1 is 1000, and softening agent is dioctyl terephthalate, and stablizer is the calcium/zinc stabilizer of CZ200, and whipping agent uses Cellmic C 121.
Embodiment 2
1) get the raw materials ready according to component listed in embodiment in table 12 and content;
2) above-mentioned each component is put into high-speed mixer, with the speed high-speed mixing about 3 minutes of 2000rpm;
3) with the speed low speed discharging of 500rpm;
4) each component mixed is added extruding pelletization in screw machine, the rotating speed of forcing machine is 20 revs/min, and extrusion temperature is 120-180 DEG C, thus obtained electric wire foamable composite.
Above-mentioned steps 4) described in screw extrusion press temperature be set to: machine barrel one district 120-140 DEG C, machine barrel two district 130-150 DEG C, machine barrel three district 140-160 DEG C, machine barrel four district 150-170 DEG C, machine barrel five district 160-180 DEG C, head and mould 160-180 DEG C.
The poly polymerization degree described in table 1 embodiment 2 is 1000, and softening agent is dioctyl terephthalate, and stablizer is the calcium/zinc stabilizer of CZ200, and whipping agent uses Cellmic C 121.
Embodiment 3
1) get the raw materials ready according to component listed in embodiment in table 13 and content;
2) above-mentioned each component is put into high-speed mixer, with the speed high-speed mixing about 3 minutes of 2000rpm;
3) with the speed low speed discharging of 500rpm;
4) each component mixed is added extruding pelletization in screw machine, the rotating speed of forcing machine is 20-80 rev/min, and extrusion temperature is 120-180 DEG C, thus obtained electric wire foamable composite.
Above-mentioned steps 4) described in screw extrusion press temperature be set to: machine barrel one district 120-140 DEG C, machine barrel two district 130-150 DEG C, machine barrel three district 140-160 DEG C, machine barrel four district 150-170 DEG C, machine barrel five district 160-180 DEG C, head and mould 160-180 DEG C.
The poly polymerization degree described in table 1 embodiment 3 is 1000, and softening agent is dioctyl terephthalate, and stablizer is the calcium/zinc stabilizer of CZ200, and whipping agent uses Cellmic C 121.
The polyethylene foamed material obtained comparative example 1 and embodiment 1-3 carries out the test of each project, and the testing method of each project is carried out according to GB/T8815-2008 " soft PVC plastic for electric wire and cable ", test the results are shown in Table 2.As can be seen from Table 2, the property indices of the foamable composite in the present invention in embodiment 1-3 also meets the requirement of H-70 model in GB/T8815-2008 " soft PVC plastic for electric wire and cable " standard completely.
Table 1
| Project | Comparative example 1 | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Polyvinyl chloride | 100 | 100 | 100 | 100 |
| Softening agent | 55 | 55 | 50 | 57 |
| Weighting agent calcium carbonate | 40 | 40 | 35 | 40 |
| Stablizer | 4 | 4 | 3 | 5 |
| Oxidation inhibitor dihydroxyphenyl propane | 0.1 | 0.1 | 0.05 | 0.05 |
| Lubricant stearic acid calcium | 0.5 | 0.5 | 0 | 0 |
| Lubricant stearic acid | 0.1 | 0.1 | 0.2 | 0.5 |
| Lubricant PE wax | 0.1 | 0.1 | 0.5 | 0.3 |
| Whipping agent | / | 0.5 | 0.5 | 2.0 |
The performance of the electric wire Foamed polyvinyl chloride material that table 2 comparative example 1 and embodiment 1-3 obtain
By material obtained in above-mentioned comparative example 1 and embodiment 1-3, join in screw extrusion press, making real core conductor in GB/T5023.4-2008 " voltage rating 450 ∕ 750V and following polyvinyl chloride insulated cable the 4th part: permanent wiring jacketed cable " standard respectively as sheath is 2 × 1.5mm
2the cable of specification, its performance index are as described in Table 3:
Table 3
As seen from the above table, the property indices of the electric wire and cable jacket made with the foamable composite in the above embodiment of the present invention 1-3 all meets the standard-required of cable.But compare with comparative example 1, lower after the density foaming of cable sheath, material more than 10% can be saved.
Embodiment 4
1) get the raw materials ready according to component listed in embodiment in table 44 and content;
2) above-mentioned each component is put into high-speed mixer, with the speed high-speed mixing about 3 minutes of 2000rpm;
3) with the speed low speed discharging of 500rpm;
4) each component mixed is added extruding pelletization in screw machine, the rotating speed of forcing machine is 80 revs/min, and extrusion temperature is 120-180 DEG C, thus obtained electric wire foamable composite.
Above-mentioned steps 4) described in screw extrusion press temperature be set to: machine barrel one district 120-140 DEG C, machine barrel two district 130-150 DEG C, machine barrel three district 140-160 DEG C, machine barrel four district 150-170 DEG C, machine barrel five district 160-180 DEG C, head and mould 160-180 DEG C.
The molecular weight of polyvinyl chloride used in embodiment 4 is 800, and whipping agent uses Cellmic C 121, and weighting agent is carbon potter's clay and polynite; Softening agent is dibutyl phthalate and Octyl adipate, and described oxidation inhibitor is phosphite.
The property indices of the electric wire and cable jacket that the foamable composite in the embodiment of the present invention 4 is made all meets the standard-required of cable, lower after the density foaming of cable sheath, can save material more than 10%.
Embodiment 5
1) get the raw materials ready according to component listed in embodiment in table 45 and content;
2) above-mentioned each component is put into high-speed mixer, with the speed high-speed mixing about 3 minutes of 2000rpm;
3) with the speed low speed discharging of 500rpm;
4) each component mixed is added extruding pelletization in screw machine, the rotating speed of forcing machine is 80 revs/min, and extrusion temperature is 120-180 DEG C, thus obtained electric wire foamable composite.
The molecular weight of polyvinyl chloride used in embodiment 5 is 2000, whipping agent uses Cellmic C 121, described weighting agent is selected from polynite, described stablizer is CZ200 environment-friendly calcium/zinc stabilizer, described softening agent is dioctyl terephthalate and dioctyl phthalate (DOP), and described oxidation inhibitor is selected from the composition of dihydroxyphenyl propane and phosphite 1:1 in mass ratio.
Above-mentioned steps 4) described in screw extrusion press temperature be set to: machine barrel one district 120-140 DEG C, machine barrel two district 130-150 DEG C, machine barrel three district 140-160 DEG C, machine barrel four district 150-170 DEG C, machine barrel five district 160-180 DEG C, head and mould 160-180 DEG C.
The property indices of the electric wire and cable jacket made with the foamable composite in the above embodiment of the present invention 5 all meets the standard-required of cable.Lower after the density foaming of cable sheath, material more than 10% can be saved.
Embodiment 6
1) get the raw materials ready according to component listed in embodiment in table 46 and content;
2) above-mentioned each component is put into high-speed mixer, with the speed high-speed mixing about 3 minutes of 2000rpm;
3) with the speed low speed discharging of 500rpm;
4) each component mixed is added extruding pelletization in screw machine, the rotating speed of forcing machine is 80 revs/min, and extrusion temperature is 120-180 DEG C, thus obtained electric wire foamable composite.
Above-mentioned steps 4) described in screw extrusion press temperature be set to: machine barrel one district 120-140 DEG C, machine barrel two district 130-150 DEG C, machine barrel three district 140-160 DEG C, machine barrel four district 150-170 DEG C, machine barrel five district 160-180 DEG C, head and mould 160-180 DEG C.
The molecular weight of polyvinyl chloride used in embodiment 6 is 3000, whipping agent uses Cellmic C 121, and described weighting agent is Calcium carbonate, and described stablizer is CZ200 environment-friendly calcium/zinc stabilizer, described softening agent is Octyl adipate, and described oxidation inhibitor is selected from dihydroxyphenyl propane.
The property indices of the electric wire and cable jacket made with the foamable composite in the above embodiment of the present invention 6 all meets the standard-required of cable.Lower after the density foaming of cable sheath, material more than 10% can be saved.
Table 4
| Project | Embodiment 4 | Embodiment 5 | Embodiment 6 |
| Polyvinyl chloride | 70 | 80 | 90 |
| Softening agent | 30 | 50 | 60 |
| Weighting agent | 40 | 35 | 30 |
| Stablizer | 2 | 2 | 5 |
| Oxidation inhibitor | 0.05 | 1 | 0.1 |
| Lubricant stearic acid calcium | 0.5 | 0 | 0.5 |
| Lubricant stearic acid | 0 | 1 | 0.5 |
| Lubricant PE wax | 0 | 0.5 | 0 |
| Whipping agent | 0.5 | 5 | 10 |
In sum, the foamable composite of electric wire disclosed in the present invention can not only reach the sheath standard required in GB/T5023.4-2008 " voltage rating 450 ∕ 750V and following polyvinyl chloride insulated cable the 4th part: permanent wiring jacketed cable ", and can effectively reduce raw-material cost.So the present invention effectively overcomes of the prior art all.
Claims (10)
1. an electric wire foamable composite, is characterized in that, described foamable composite comprises the component of following weight part:
2. electric wire foamable composite as claimed in claim 1, it is characterized in that, the polymerization degree of described polyvinyl chloride is 800-3000.
3. electric wire foamable composite material as claimed in claim 1, it is characterized in that, the weight part of described whipping agent is 0.5-5 part.
4. electric wire foamable composite as claimed in claim 1, it is characterized in that, described whipping agent is selected from one or more in Cellmic C 121, Diisopropyl azodicarboxylate, p-toluene sulfonylsemicarbazide and dinitrosopentamethlyene tetramine.
5. electric wire foamable composite as claimed in claim 1, is characterized in that, described weighting agent be selected from Calcium carbonate weighting agent, talcum powder, potter's clay and polynite one or more.
6. electric wire foamable composite as claimed in claim 1, is characterized in that, described stablizer be selected from lead salts, organic tin, metal soap and environment-friendly calcium/zinc class one or more.
7. electric wire foamable composite as claimed in claim 1, is characterized in that, described softening agent be selected from dioctyl terephthalate, dioctyl phthalate (DOP), dibutyl phthalate and Octyl adipate one or more.
8. electric wire foamable composite as claimed in claim 1, is characterized in that, described oxidation inhibitor be selected from dihydroxyphenyl propane and phosphite one or both.
9. the preparation method of electric wire foamable composite as described in claim as arbitrary in claim 1-8, comprises the steps:
1) a certain amount of each component is taken according to proportioning;
2) above-mentioned each component is put into high-speed mixer to mix, mix rear discharging;
3) each component mixed is added extruding pelletization in screw machine, the rotating speed of forcing machine is 20-80 rev/min, and extrusion temperature is 120-180 DEG C.
10. preparation method as claimed in claim 9, it is characterized in that, described screw extrusion press temperature is set to: machine barrel one district 120-140 DEG C, machine barrel two district 130-150 DEG C, machine barrel three district 140-160 DEG C, machine barrel four district 150-170 DEG C, machine barrel five district 160-180 DEG C, head and mould 160-180 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310629330.2A CN104672690A (en) | 2013-11-29 | 2013-11-29 | Foamable composition for electric cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310629330.2A CN104672690A (en) | 2013-11-29 | 2013-11-29 | Foamable composition for electric cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104672690A true CN104672690A (en) | 2015-06-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310629330.2A Pending CN104672690A (en) | 2013-11-29 | 2013-11-29 | Foamable composition for electric cable |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105440361A (en) * | 2015-12-25 | 2016-03-30 | 赣州金信诺电缆技术有限公司 | Foamed sheath for foamed FEP (fluorinated ethylene propylene) cables and preparation method thereof |
| CN106609011A (en) * | 2015-10-21 | 2017-05-03 | 大电塑料（上海）有限公司 | Foaming PVC material, preparation method and uses thereof |
| CN106609014A (en) * | 2015-10-21 | 2017-05-03 | 大电塑料（上海）有限公司 | Refrigerator door seal, preparation method and application thereof |
-
2013
- 2013-11-29 CN CN201310629330.2A patent/CN104672690A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106609011A (en) * | 2015-10-21 | 2017-05-03 | 大电塑料（上海）有限公司 | Foaming PVC material, preparation method and uses thereof |
| CN106609014A (en) * | 2015-10-21 | 2017-05-03 | 大电塑料（上海）有限公司 | Refrigerator door seal, preparation method and application thereof |
| CN106609011B (en) * | 2015-10-21 | 2019-03-22 | 大电塑料（上海）有限公司 | A kind of foaming PVC material and its preparation method and application |
| CN106609014B (en) * | 2015-10-21 | 2019-03-26 | 大电塑料（上海）有限公司 | A kind of refrigerator door seal and its preparation method and application |
| CN105440361A (en) * | 2015-12-25 | 2016-03-30 | 赣州金信诺电缆技术有限公司 | Foamed sheath for foamed FEP (fluorinated ethylene propylene) cables and preparation method thereof |
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Application publication date: 20150603 |