CN1141687A - Covered conductor structure - Google Patents
Covered conductor structure Download PDFInfo
- Publication number
- CN1141687A CN1141687A CN 95191790 CN95191790A CN1141687A CN 1141687 A CN1141687 A CN 1141687A CN 95191790 CN95191790 CN 95191790 CN 95191790 A CN95191790 A CN 95191790A CN 1141687 A CN1141687 A CN 1141687A
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- CN
- China
- Prior art keywords
- resin
- layer
- polyacetals
- conductor structure
- covered conductor
- Prior art date
- 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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Classifications
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- 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
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Insulated Conductors (AREA)
- Laminated Bodies (AREA)
Abstract
A covered conductor structure that is protected from damages caused by rat's bite and has such a suitable flexural modulus as to improve the efficiency of operations such as wiring. It has around the conductor a covering layer comprising a polyacetal resin or a polyacetal-base resin comprising a composition of a polyacetal resin as the principal component with other resin(s), for example, a composition of a polyacetal resin with a thermoplastic polyurethane resin and/or a core-shell polymer. It is preferable that the polyacetal-base resin has a flexural modulus ranging from 500 to 3,000 MPa and the covering layer has a thickness of 0.3 mm or above.
Description
Technical field
The present invention relates to a kind of covered conductor structure, described conductor structure is a kind of works that the coating layer that is made of the polyacetals resin is set on lead, but the resin proterties of described its polyacetal resin that is had of conductor structure nationality, avoid gnawing of mouse, promptly, avoid the infringement of lead, but and its appropriate crooked elastic rate of nationality, the operating efficiency when improving wire line and arranging etc.
Background technology
In modern society, no matter city or place, many damaged by rats take place.For example, since mouse gnaw crime of injuries by explosive substances to buildings and goods therein etc.; Or mouse becomes the infection medium of pathogen, or because of its with dirt become pollutant sources, or the like, its influence is very big.Wherein, because mouse is to being arranged at circuit inside and outside the building, for example, the destruction that mouse is caused gnawing of electric wire and optical cable etc. often becomes power failure, electric leakage is on fire and the reason of generation gas explosion accident, thus, the function stop that causes chain of communication, signalling arrangement make a mistake the action and function change, influence very big.
For tackling the plague of rats, in the past, chemistry and method machinery had been used to the harm of circuit class as mentioned above.As described chemical method, have: will be mixed with the coating layer of the applying coating of Ratproof agent in electric wire, or, will be mixed with the thermoplastic resin of Ratproof agent or intermediate layer or the skin that synthetic rubber is used as coating layer.Again, the method as machinery has: with metal film or metal tape as the lead coating layer, coated wire side face fully.
Yet, in chemical method,, sometimes, can produce adverse effect to personnel such as the producer of lead, circuit unwrapping wire operators because described Ratproof agent is also harmful for people, animal.In addition, be mixed with coating, thermoplastic resin, the synthetic rubber of Ratproof agent, its active ingredient putting off and slowly descend simultaneously in time, be not suitable for the long control plague of rats.On the other hand, problem on the environment is also arranged.Have, the price of Ratproof agent is higher again, also infringement reasonability economically.In the method for machinery, owing to used metal material, can produce the metal problem of rustiness, in addition,, increased the weight of covered conductor structure owing to the deadweight of metal, cause the reduction of Job Operations performance.Have, if the anti-rust metal of use stainless steel etc., then it has damaged the economic rationality that it had on price, and same problem is arranged during with the use chemical method again.
The announcement of invention
Present inventors suffer the present situation of rat eaten harm to do research painstakingly with regard to coated wire, its result, find, when using the polyacetals resin as the coating layer of lead, can address the above problem, avoid the plague of rats, the covered conductor structure of the operating efficiency that has been improved, thereby, finished the present invention.
That is, the invention provides a kind of covered conductor structure, it is characterized in that, contain the coating layer of polyacetals resin in the arranged outside of lead.Again, the invention provides a kind of above-mentioned covered conductor structure, it is characterized in that, described polyacetals resin by polyacetal resin or, form by other the resin that based on polyacetals is resin.In addition, the invention provides a kind of above-mentioned covered conductor structure, it is characterized in that, in this structure,, particularly preferably be TPU(Thermoplastic polyurethanes) and/or core shelly polymer as mixing in other resin of polyacetal resin to there is no what restriction.Again, the invention provides a kind of above-mentioned covered conductor structure, it is characterized in that, contact with each other on coating layer by polyacetals resin and polyvinyl chloride resin layer and form coating layer.Again, the invention provides a kind of above-mentioned covered conductor structure, it is characterized in that, described coating layer is by being that this resin bed more than two layers of outermost polyvinyl chloride resin layer and polyacetals resin forms with polyvinyl chloride resin layer.Again, the invention provides a kind of above-mentioned covered conductor structure, it is characterized in that, described coating layer is by being that this resin bed more than two layers of outermost polyacetals resin and polyvinyl chloride resin layer forms with the polyacetals resin.Again, the invention provides a kind of above-mentioned covered conductor structure, it is characterized in that, described coating layer is outermost layer with the polyvinyl chloride resin layer, its intermediate layer is the polyacetals resin, and the internal layer of contact wire is ldpe resin layer or polyvinyl chloride resin layer.Again, the invention provides a kind of above-mentioned covered conductor structure, it is characterized in that, described coating layer is an outermost layer with the polyacetals resin, and its intermediate layer is a polyvinyl chloride resin layer, and the internal layer of contact wire is the ldpe resin layer.Again, the invention provides any above-mentioned covered conductor structure, it is characterized in that, the thickness of described polyacetals resin is more than 0.3mm, and above-mentioned polyacetals is the scope of the crooked elastic rate of resin in 500-3000MPa (MPa).Again, the invention provides any above-mentioned covered conductor structure, it is characterized in that, described covered conductor structure can be used for preventing rat eaten harm.
In addition, among the present invention, so-called " polyacetals is a resin ", except referring to polyacetal resin, also refer to based on polyacetal resin, can mix in the composition of the admixture of polyacetal resin.Implement optimal morphology of the present invention covered conductor structure of the present invention and be to be used for the lead of conducting light, electricity, its used material, shape do not have special requirement, for example, can use glass fibre that optical cable uses, electric, various metal wires that telephone line is used etc.Covered conductor structure of the present invention promptly on above-mentioned these leads bag being that the coating layer that resin is formed forms by polyacetals.
Covered conductor structure of the present invention has the coating layer that one deck is formed by the polyacetals resin at least at least, as required, also can wrap the coating layer that one deck is made up of other material thereon again.For example, at the coating of outermost layer bag one deck fire proofing material of coating layer; Perhaps, the buffering coating of the protecting against shock material that bag one deck guardwire is used on the orlop of coating and insulating barrier etc.So the lamination material of lamination there is no restriction especially.Again, as required, also tack coat can be set, to keep the bonding force of itself and polyacetals resin.In addition, the polyacetals resin can be by common extrusion moulding moulding, also can be with the belt coiling and molding of polyacetal resin or its composition system, and perhaps, described belt also weaves webbed.Coating and Corvic is contacted with the polyacetals resin,,, can improve the intensity of whole covered conductor structure because of Corvic has good and the bonding force polyacetals resin with the occasion of formation coating by extruding.Particularly, when used lead is the conduction time spent, as this lead coating layer structure is made with the polyvinyl chloride resin layer is outermost layer, with the polyacetals resin is the intermediate layer, internal layer with polyvinyl chloride resin layer or ldpe resin layer as insulating barrier, then because of Corvic has anti-flammability and insulating properties, when being used for the unwrapping wire in the building, its fail safe is higher.
Polyacetals resin in the covered conductor structure of the present invention can use following polyacetal resin.Promptly, as polyacetal resin, as long as described resin is (CH2O-) to be the macromolecular compound of primary structure unit, can to use the polyoxymethylene homopolymers, contain any in the copolymer, terpolymer, block copolymer of other construction unit except the oxygen methylene with the oxygen methylene.In addition, described molecule not only can be wire (a straight chain shape), and also can be to have branch, cross-linked structure.Again, the polyacetals resin can or contain the resin bed that the composition of polyacetal resin forms from polyacetal resin, be preferably, described polyacetals resin is from forming based on polyacetal resin and with the composition that hollow block structure or areolation contain other resin.Thus,, can avoid gnawing of mouse owing to mixed other resin, and, the crooked elastic rate of polyacetals resin adjusted, the Job Operations in the time of can improving the burying underground of this covered conductor structure, unwrapping wire.Can mix other resin and without particular limitation in polyacetal resin, can use TPU(Thermoplastic polyurethanes), core shelly polymer, polyester elastomer, polyamide elastomer, the acrylic resin of ABS resin etc., ethylene-ethyl acetate copolymer, the polyvinyl acetate resin, alpha-olefin and α, the olefin-based resin of the copolymer of the ethylene oxidic ester of beta-unsaturated acid etc., Corvic, polyethylene terephthalate resin, polybutylene terephthalate resin, polycarbonate resin, poly (phenylene ether) resin, polyphenylene sulfoether resin etc., but, wherein, it is desirable to TPU(Thermoplastic polyurethanes) and/or core shelly based polymer especially.Here, so-called core shelly polymer is the organic compound with shell of the sandwich layer of rubber-like polymer and glassy polymers, and this compound is that available known method makes, and also can use commercial articles.Core shelly polymer can be used the multistage emulsion polymerization method, and the polymer that generates at after-stage sequentially is coated on the rubber-like polymer of sandwich layer, forms shell and makes.As the sandwich layer of rubber-like polymer, can enumerate, as polymerization conjugated diene or the polymer of alkyl acrylate or their mixture.As having that the glassy polymers that forms shell can be enumerated: the independent polymerization of methyl methacrylate, or can with the polymer after the mixture copolymerization of the monomer of methyl methacrylate copolymer.In addition, between the shell of the sandwich layer of rubber-like polymer and glassy polymers, also can there be the intermediate layer.
In above-mentioned polyacetal resin, so long as in the scope that does not hinder effect of the present invention, also can mix various stabilizers as anticaking agent, antioxidant, ultra-violet absorber etc.; As colouring agent, lubricant, plasticizer and the crystallization promoter of antistatic agent, fire retardant, flame retardant, dye well pigment etc., nucleating agent, release agent, filler etc.
The thickness of polyacetals resin of the present invention is preferably in more than the 0.3mm, and described polyacetals is the scope that the crooked elastic rate of resin is preferably in 500-3000MPa.The thickness of polyacetals resin of the present invention is preferably in the above reason of 0.3mm, when this thickness was discontented with 0.3mm, polyacetals was that the crooked elastic rate of resin is low, easily destroyed the polyacetals resin because of gnawing of mouse, good especially is that this thickness is more than 0.5mm.
Again, described polyacetals is that the crooked elastic rate of resin is the scope at 500-1500MPa better.When described spring rate is in above-mentioned scope, but then guardwire is not subjected to the harm of rat eaten, and, can guarantee the wiring of covered conductor structure and be easy to bending when laying to have good working.
From the polyacetals that constitutes above-mentioned covered conductor structure is resin, according to ASTM D790 standard, makes print, carries out the mensuration of crooked elastic rate.In addition, being resin in polyacetals resin of the present invention system by the polyacetals of band shape is wound on the lead and the occasion that forms as multi-turn, perhaps, and when described belt is eyed structure, also can be according to above-mentioned assay method, the polyacetals of measuring its formation is the crooked elastic rate of resin.
Again, low-density polyvinyl resin, crooked elastic rate are shaped in polyacetal resin composite and the Corvic co-extruded of 735MPa, the thickness that can make ldpe resin layer (internal layer) is 1mm, the thickness of polyacetals resin (intermediate layer) is 0.5mm, the thickness of polyvinyl chloride resin layer (skin) is at hollow cable 1.5mm, external diameter 10mm, this cable has enough flexibilities, and its operating characteristics is good.
The representational structure of covered conductor structure of the present invention is shown in Fig. 1 with its sectional view, but the present invention is not limited to described shape.
Covered conductor structure of the present invention can be with various known method manufacturings.For example, lead as core material can be supplied with extruder on one side, on one side polyacetal resin or its composition of molten condition are extruded separately, or described polyacetal resin or its composition and other resin co-extruded are gone out, make coated wire of the present invention.Perhaps, in addition, the net that will be made up of polyacetal resin or its composition (or belt also can) winding makes on described core material.
Below, specifically describe the present invention with embodiment, still, the present invention is not limited.Embodiment 1
For with the gnawing of the method for standard investigation mouse to the harm of covered conductor structure of the present invention, be each one of female, male rat with the Vist at about two monthly ages, place respectively in the rearging cage, give feed and water.In each cage, insert in couples respectively in advance and measured test film (long 6cm * wide 1.2cm * thick 6mm weight, that shine the Corvic of usefulness, about 6-7g) 1, test film (long 6cm * wide 1.2cm * thick 6mm with the polyacetal resin composite that has used polyacetal resin (Port リ プ ラ ス チ ッ Network ス corporate system " ジ ュ ラ コ Application ") or above-mentioned " ジ ュ ラ コ Application ", about 6-7g) 1, that is, every cage is two.After test film former state in the cage is placed a week, take out, observe the situation that it is snapped, survey its weight.Again, gnaw for promoting mouse forcibly, the honey that mouse is liked hangs on respectively on the test film, observes.It the results are shown in table 1.
Table 1
Embodiment 2
| Test film material (the weight fraction ratio during composition) | Crooked elastic rate (MPa) | Male mouse/minimizing weight (g) | Female mouse/minimizing weight (g) |
| Corvic | ????300 | ????1.620 | ????0.584 |
| Corvic | ????2.600 | ????0.550 | ????0.410 |
| Polyacetal resin | ????2.590 | ????0 | ????0 |
| Polyacetal resin+polyurethane (100: 100) | ????780 | ????0 | ????0 |
| Polyacetal resin+core shelly polymer (100: 100) | ????735 | ????0 | ????0 |
| Polyacetal resin+core shelly polymer (100: 30) | ????1.300 | ????0 | ????0 |
The investigation mouse gnaw to the shadow of the thickness of the polyacetals resin of covered conductor structure of the present invention to.With the Vist at about two monthly ages is each one of female, male rat, places respectively in the rearging cage, gives feed and water.In each cage, inserted respectively in lead upper strata lamination soft PVC resin (crooked elastic rate is 300MPa), and again in its outer lamination the covered conductor structure that the polyacetals resin is 0.2mm, 0.3mm, 0.5mm is thick shown in the table 2.After covered conductor structure former state in the cage is placed a week, take out, observe the situation that it is snapped.It the results are shown in table 2.Mark in the table, * expression are by the tearing of gnawing, and △ represents to have the tooth seal, the anodontia seal of zero expression.
Table 2
Can see that from table 1 and table 2 test film of the making polyvinyl chloride composition that is used to contrast is no matter its thickness how, all is subjected to strong baiting, and be not leave the tooth seal on all test films of making of resin, almost do not gnawed by polyacetals.Again, when having mixed other resin, be resin as bunching vinegar, when the thickness of polyacetals resin in covered conductor structure is 0.3mm when above, do not see the tooth seal that has mouse to bait fully yet.Utilizability on the industry
| Weight part ratio when polyacetal resin contains layer composition | Crooked elastic rate (MPa) | Thickness (mm) | ||
| 0.2 | ?0.3 | ?0.5 | ||
| Polyacetal resin | ????2.590 | △ | ○ | ?○ |
| Polyacetal resin+polyurethane (100: 100) | ????780 | × | ○ | ?○ |
| Polyacetal resin+core shelly polymer (100: 100) | ????735 | × | ○ | ?○ |
| Polyacetal resin+core shelly polymer (100: 30) | ????1.300 | × | ○ | ?○ |
More than done detailed explanation, but also can understand from embodiment, according to covered conductor structure of the present invention, the harm that can avoid mouse to gnaw, and can keep the suitable crooked elastic rate of this conductor structure, therefore, can improve the operating efficiency of wiring etc.Have, come compared with chemistry that was adopted or mechanical method in the past, its effect is more lasting, has economy reasonability on one's body concurrently.
The simple declaration of accompanying drawing
Figure 1 shows that the representational structural section figure of covered conductor structure of the present invention.
Among the figure, a is outer, and b is the intermediate layer, and c is an internal layer, and d is a lead.
Claims (15)
1. a covered conductor structure is characterized in that, is the coating layer that resin is formed in the arranged outside one of lead by polyacetals.
2. covered conductor structure as claimed in claim 1 is characterized in that, shown in the polyacetals resin constitute by polyacetal resin, or by constituting based on composition polyacetal resin, polyacetal resin and other resin.
3. covered conductor structure as claimed in claim 2 is characterized in that, to be resin be made of polyacetal resin and TPU(Thermoplastic polyurethanes) and/or core shelly polymer described polyacetals.
4. covered conductor structure as claimed in claim 2 is characterized in that, described polyacetals resin and polyvinyl chloride resin layer contact with each other, and forms coating layer.
5. covered conductor structure as claimed in claim 3 is characterized in that, to be resin be made of polyacetal resin and TPU(Thermoplastic polyurethanes) and/or core shelly polymer described polyacetals.
6. covered conductor structure as claimed in claim 4 is characterized in that, described coating layer is by being constituting more than two layers of outermost polyvinyl chloride resin layer and polyacetals resin with polyvinyl chloride resin layer.
7. covered conductor structure as claimed in claim 5 is characterized in that, described coating layer is by being constituting more than two layers of outermost polyacetals resin and polyvinyl chloride resin layer with the polyacetals resin.
8. covered conductor structure as claimed in claim 4 is characterized in that, described coating layer is by being constituting more than two layers of outermost polyacetals resin and polyvinyl chloride resin layer with the polyacetals resin.
9. covered conductor structure as claimed in claim 5 is characterized in that, described coating layer is by being constituting more than two layers of outermost polyacetals resin and polyvinyl chloride resin layer with the polyacetals resin.
10. covered conductor structure as claimed in claim 4, it is characterized in that, described coating layer is for being outermost layer with the polyvinyl chloride resin layer, and the intermediate layer is the polyacetals resin, and the internal layer of contact wire is low-density polyvinyl resin layer or polyvinyl chloride resin layer.
11. covered conductor structure as claimed in claim 5, it is characterized in that, described coating layer is for being outermost layer with the polyvinyl chloride resin layer, and the intermediate layer is the polyacetals resin, and the internal layer of contact wire is low-density polyvinyl resin layer or polyvinyl chloride resin layer.
12. covered conductor structure as claimed in claim 4, it is characterized in that, described coating layer is for being outermost layer with the polyacetals resin, and the intermediate layer is a polyvinyl chloride resin layer, and the internal layer of contact wire is low-density polyvinyl resin layer or polyvinyl chloride resin layer.
13. covered conductor structure as claimed in claim 5, it is characterized in that, described coating layer is for being outermost layer with the polyacetals resin, and the intermediate layer is a polyvinyl chloride resin layer, and the internal layer of contact wire is low-density polyvinyl resin layer or polyvinyl chloride resin layer.
14. each the described covered conductor structure as claim 1-13 is characterized in that the thickness of described polyacetals resin is more than the 0.3mm, described polyacetals is the scope of the crooked elastic rate of resin at 500-3000MPa.
15. each the described covered conductor structure as claim 1-13 is characterized in that, described covered conductor structure is used to prevent the harm of gnawing of mouse.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34046194 | 1994-12-28 | ||
| JP340461/94 | 1994-12-28 | ||
| JP340461/1994 | 1994-12-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1141687A true CN1141687A (en) | 1997-01-29 |
| CN1138281C CN1138281C (en) | 2004-02-11 |
Family
ID=18337192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB951917900A Expired - Fee Related CN1138281C (en) | 1994-12-28 | 1995-12-28 | Covered conductor structure |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3419781B2 (en) |
| CN (1) | CN1138281C (en) |
| WO (1) | WO1996020487A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108735331A (en) * | 2018-05-29 | 2018-11-02 | 宁波卡倍亿电气技术股份有限公司 | A kind of transport facility double layer screen high pressure aluminium cable |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0938099A1 (en) * | 1997-05-16 | 1999-08-25 | The Furukawa Electric Co., Ltd. | Flat cable and method of manufacturing the same |
| JP3936329B2 (en) * | 2003-12-04 | 2007-06-27 | 古河電気工業株式会社 | Insulated wire |
| CN104810112A (en) * | 2015-04-23 | 2015-07-29 | 南京全信传输科技股份有限公司 | LVDS transmission cable for space navigation and manufacturing method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58211715A (en) * | 1982-06-04 | 1983-12-09 | Asahi Chem Ind Co Ltd | Optical fiber cable |
| US4938560A (en) * | 1988-05-17 | 1990-07-03 | At&T Bell Laboratories | Animal-resistant cable |
| JPH0325219U (en) * | 1989-03-01 | 1991-03-15 | ||
| JP2733123B2 (en) * | 1990-03-28 | 1998-03-30 | ポリプラスチックス株式会社 | Polyacetal resin composition |
| JP3197948B2 (en) * | 1991-06-20 | 2001-08-13 | ポリプラスチックス株式会社 | Weatherable polyacetal resin composition |
-
1995
- 1995-12-28 JP JP52037196A patent/JP3419781B2/en not_active Expired - Fee Related
- 1995-12-28 WO PCT/JP1995/002752 patent/WO1996020487A1/en active Application Filing
- 1995-12-28 CN CNB951917900A patent/CN1138281C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108735331A (en) * | 2018-05-29 | 2018-11-02 | 宁波卡倍亿电气技术股份有限公司 | A kind of transport facility double layer screen high pressure aluminium cable |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3419781B2 (en) | 2003-06-23 |
| WO1996020487A1 (en) | 1996-07-04 |
| CN1138281C (en) | 2004-02-11 |
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