CN101319076A - Environment-friendly type ground-buried power cable plastic protector tube raw material formulation - Google Patents
Environment-friendly type ground-buried power cable plastic protector tube raw material formulation Download PDFInfo
- Publication number
- CN101319076A CN101319076A CNA2008100407760A CN200810040776A CN101319076A CN 101319076 A CN101319076 A CN 101319076A CN A2008100407760 A CNA2008100407760 A CN A2008100407760A CN 200810040776 A CN200810040776 A CN 200810040776A CN 101319076 A CN101319076 A CN 101319076A
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- Prior art keywords
- power cable
- cable plastic
- calcium carbonate
- raw material
- environment
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention discloses a raw material formula of an environment-friendly buried type power cable plastic protective pipe. The compositions of the raw material formula are polyvinyl chloride, a calcium-zinc composite stabilizing agent, stearic acid, paraffin, an SRC polyvinyl chloride functional adjusting agent, light calcium carbonate, heavy calcium carbonate and molybdate orange. The power cable plastic protective pipe manufactured by the formula of the invention is characterized by the absence of the pollution of heavy metal, particularly the heavy metal which is harmful to drinking water sanitation and safety; in addition, in the formula, Haloflex in the prior power cable plastic protective pipe does not exist, the plugging compound of the light calcium carbonate and the heavy calcium carbonate is added appropriately; therefore, the heat resistance and high pressure resistance of the power cable plastic protective pipe are improved and the Vicat softening point is more than or equal to 93 DEG C.
Description
Technical field
The present invention relates to the power cable technology, particularly relate to the protection tube of power cable.
Background technology
Advanced since 20th century, the environmental-protecting performance of the type ground-buried power cable plastic protection of electric power development, the required use of electric network reconstruction more and more comes into one's own.But a large amount of so far cable plastics protective tubes that use still obviously contain the heavy metal composition, are the power cable plastic protecting tube of ZL95111671.1 as the patent No..Leaded, the tin in the prescription of this type of protective tube and the one package stabilizer of other heavy metal are embedded in the soil midium or long term soaked into by underground water, and heavy metal wherein has separates out, near making the heavy metal content of soil considerably beyond standard value, thereby environment is polluted.In addition, the existing cable protection tube, heat resistance is poor, is difficult to satisfy the instantaneous temperature (about 80 ℃) that cable forms because of the overload short circuit.
Summary of the invention
The composition of raw materials that the purpose of this invention is to provide a kind of environment-friendly type power cable plastic protecting tube; being in the heavy metal that does not have harm Drinking Water hygienic safety under the buried condition with the power cable plastic protecting tube of its manufacturing separates out; producers and soil are not increased heavy metal contamination, and its heat resistance is improved significantly.
The present invention is achieved by the following technical solutions:
A kind of composition of raw materials of environment-friendly type ground-buried power cable plastic protector tube, its each composition and content thereof are as follows:
Polyvinyl chloride 100.0
Calcium-zinc composite stabilizing agent 2.8
Stearic acid 0.5
Paraffin 0.2
SRC polyvinyl chloride functional conditioning agent 1.3
Light calcium carbonate 30.0
Water-ground limestone 5.0
Molybdenum red 1.0.
Having abandoned in the present invention prescription as the patent No. is the one package stabilizer of use in the power cable plastic protecting tube of ZL95111671.1 leaded, tin and other heavy metal, and the power cable plastic protecting tube that therefore uses the present invention to fill a prescription to make has the characteristic of pollution that heavy metal free does not particularly have the heavy metal of harm Drinking Water hygienic safety; In addition; do not contain the chlorinatedpolyethylene in the existing power cable plastic protecting tube composition of raw materials in the present invention's prescription; also suitably increase stopping composition light calcium carbonate and water-ground limestone, make heat-resisting, the high voltage performance of power cable plastic protecting tube improve thus, Vicat softening point 〉=93 ℃.
Embodiment
Can make the broad variety power cable plastic protecting tube with prescription of the present invention, be 8.0 with wall thickness
+ 0.3The straight tube of millimeter is an example, and its complete processing is: with extremely≤110 ℃ of powder raw material prescription mixing post-heating, about 3 minutes of time, promptly entering volume then is twice the above cold pot of kneading and mixes and stirs, about 2～3 minutes of cold mixing time, after sieving, send into the twin screw extruder extrusion moulding again.Product after the machine-shaping, its density is about 1490～1650kg/m
3, volume resistance 〉=1.0 * 10
13Cm, inwall frictional coefficient≤0.35.
Claims (1)
1. the composition of raw materials of an environment-friendly type ground-buried power cable plastic protector tube, its each composition and content thereof are as follows:
Polyvinyl chloride 100.0
Calcium-zinc composite stabilizing agent 2.8
Stearic acid 0.5
Paraffin 0.2
SRC polyvinyl chloride functional conditioning agent 1.3
Light calcium carbonate 30.0
Water-ground limestone 5.0
Molybdenum red 1.0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100407760A CN101319076B (en) | 2008-07-21 | 2008-07-21 | Environment-friendly type ground-buried power cable plastic protector tube raw material formulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100407760A CN101319076B (en) | 2008-07-21 | 2008-07-21 | Environment-friendly type ground-buried power cable plastic protector tube raw material formulation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101319076A true CN101319076A (en) | 2008-12-10 |
| CN101319076B CN101319076B (en) | 2010-07-14 |
Family
ID=40179359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100407760A Expired - Fee Related CN101319076B (en) | 2008-07-21 | 2008-07-21 | Environment-friendly type ground-buried power cable plastic protector tube raw material formulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101319076B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102295810A (en) * | 2010-06-23 | 2011-12-28 | 安徽中天塑业有限公司 | Production process for buried PVC-C (Chlorinated Poly Vinyl Chloride) cable sheath tube |
| CN103289238A (en) * | 2013-06-20 | 2013-09-11 | 中塑联新材料科技湖北有限公司 | Special impact resistant calcium carbonate for polyvinyl chloride cable material |
| CN105623139A (en) * | 2014-11-04 | 2016-06-01 | 国家电网公司 | Cable protection tube and making method thereof |
| CN106147070A (en) * | 2015-04-03 | 2016-11-23 | 中塑联新材料科技湖北有限公司 | Foam polyvinyl chloride special enhancing activated calcium carbonate |
-
2008
- 2008-07-21 CN CN2008100407760A patent/CN101319076B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102295810A (en) * | 2010-06-23 | 2011-12-28 | 安徽中天塑业有限公司 | Production process for buried PVC-C (Chlorinated Poly Vinyl Chloride) cable sheath tube |
| CN103289238A (en) * | 2013-06-20 | 2013-09-11 | 中塑联新材料科技湖北有限公司 | Special impact resistant calcium carbonate for polyvinyl chloride cable material |
| CN105623139A (en) * | 2014-11-04 | 2016-06-01 | 国家电网公司 | Cable protection tube and making method thereof |
| CN106147070A (en) * | 2015-04-03 | 2016-11-23 | 中塑联新材料科技湖北有限公司 | Foam polyvinyl chloride special enhancing activated calcium carbonate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101319076B (en) | 2010-07-14 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100714 Termination date: 20170721 |
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| CF01 | Termination of patent right due to non-payment of annual fee |