CN104479303A - Folding-resistant insulating material and triple insulation wire using same - Google Patents
Folding-resistant insulating material and triple insulation wire using same Download PDFInfo
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- CN104479303A CN104479303A CN201410727290.XA CN201410727290A CN104479303A CN 104479303 A CN104479303 A CN 104479303A CN 201410727290 A CN201410727290 A CN 201410727290A CN 104479303 A CN104479303 A CN 104479303A
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Abstract
The invention discloses a folding-resistant insulating material. The folding-resistant insulating material comprises the following components in parts by weight: 30-70 parts of PET, 15-60 parts of PTT, 3-40 parts of PBT, preferably, as well as 1-2 parts of master batch and 1-4 parts of a compatilizer. The material has the advantages of excellent insulating property and good flexibility, molecular chain structures of PBT and PET have an even number of methylene groups, the molecular chain structure of PTT has an odd number of methylene groups, the molecular chain structure of PTT having the odd number of methylene groups has an 'odd-carbon-effect' so that a benzene ring cannot be in the same plane with three methylene groups, the PTT macromolecular chains form spiral arrangement and thus the flexibility and the ductility of the material are significantly enhanced.
Description
Technical field
The present invention relates to a kind of insulating material and use the three layer insulation wire of this material, belong to insulating material preparing technical field.
Background technology
Insulating material is the critical material manufacturing electric installation, modern electric power industry uses various insulating material and insulated product, along with China's power industry is to the development of the aspect such as high voltage large capcity and long-distance sand transport, propose more and more higher requirement to the quality of insulating material and reliability, the insulating material of the various excellent property of research and development is the popular tendency of current insulating material development.
Three layer insulation wire is a kind of High Performance Insulation wire, this wire has three insulation layers, centre is heart yearn, the first layer is the polyester film of several micron thickness, but can bear the high voltage pulse of 3KV, and the second layer is also polyester film, third layer is transparent nylon layer, the total thickness of insulation layer is only 0.08-0.12mm, and its advantage is that insulation strength is high, all can bear the safety voltage exchanging 3000V between two-layer arbitrarily.
The concern that people are too much in research in the past be insulated wire material insulativity, pay close attention to the voltage and current that it bears, for other performance pay close attention to less.At present, the insulating material that on market, three layer insulation wire is conventional is PET or PBT, the outer snappiness of the three layer insulation wire that mentioned component insulating material makes is inadequate, the easy impaired destruction of insulation layer after being subject to external impacts, extruding or bending, thus produces the hidden danger of voltage and defective insulation.Such as, high-frequency induction winding three layer insulation wire used is made in narrow and small electric original paper, when automatic coil winding machine coiling, three layer insulation wire will by thinner perforation guide pin, and machine coiling, speed of changing direction is very fast, thus has higher requirement to insulated wire top layer snappiness and folding resistance.
Summary of the invention
For solving for the insulating material snappiness of three layer insulation wire, the problem of ductility deficiency in prior art, and then a kind of insulating material for three layer insulation wire is provided and uses the three layer insulation wire of this insulating material.
For this reason, the technical scheme that the application takes is,
A kind of folding insulating material, comprise PET, also comprise PBT and PTT, with parts by weight, described PET is 30-70 part, and PTT is 15-60 part, and PBT is 3-40 part.
In above-mentioned folding insulating material, the look also comprising 1-2 part is female.
In above-mentioned folding insulating material, also comprise the compatilizer of 1-4 part.
In above-mentioned folding insulating material, PET is 50-70 part, and PTT is 30-40 part, and PBT is 10-30 part.
A kind of three layer insulation wire, metal core wire is disposed with the first insulation layer, the second insulation layer and nylon layer from inside to outside, and described first insulation layer and the second insulation layer are made by above-mentioned arbitrary insulating material.
In above-mentioned three layer insulation wire, the thickness of described first insulation layer or the second insulation layer is 0.02-0.05mm.
In above-mentioned three layer insulation wire, the thickness of described nylon layer is 0.02-0.05mm.
In above-mentioned three layer insulation wire, after described PET, PTT and PBT Homogeneous phase mixing, described first insulation layer or described second insulation layer are made in extrusion moulding.
In above-mentioned three layer insulation wire, after described PET, PTT and PBT mixing, before extrusion moulding, also comprise the step adding look mother and compatilizer.
Compared with prior art, tool of the present invention has the following advantages,
(1) internal layer of the three layer insulation wire of the application and middle level are by comprising 30-70 part PET (polyethylene terephthalate), the insulating material of 30-60 part PTT (Poly(Trimethylene Terephthalate)) and 3-40 part PBT (polybutylene terephthalate) is made, this material is high temperature resistant except having, outside resistance toheat, also there is good insulating property and flexibility, there is in the molecular chain structure of PBT and PET even number methylene radical, and the odd number methylene radical in PTT molecular chain structure, " strange carbon effect " that the PTT with odd number subunit unit has makes phenyl ring can not be in same plane with three methylene radical, PTT macromolecular chain is made to form eccentric pattern thus, thus the flexible ductility of material is strengthened.
(2) also compatilizer is added in the insulating material of the application, PTT is in the process mixed with PBT and PET, in the acting in conjunction of PBT and PET molecule, PTT molecular chain is not easily compatible with PBT and PET molecule, and phenomenon of easily uniting, thus make material meeting skewness, the conglomeration of formation, occur short slab that is withstand voltage and heatproof at different positions, add compatilizer and be conducive to the dispersion of PTT in system, heterogeneity is fully disperseed, mutual fusion, generates desirable insulating material.
(3) look mother is also added, so that distinguished by the insulated wire that Color pair is different in the insulating material of the application.
Embodiment
Embodiment 1
Epoxy resin that the is look of the PBT of the PTT of the PET of 30 weight parts, 60 weight parts, 30 weight parts, 1 weight part is female and 1 weight part mixes extrusion moulding in rear input extruding machine and forms the first insulation layer and the second insulation layer that are coated on metal core wire surface, last at most external covered with nylon layer, form the three layer insulation wire in the present embodiment.Wherein the thickness of first and second exhausted insulation layer is 0.03mm, nylon layer thickness 0.03mm.
Embodiment 2
Modified polyacrylic acid that the is look of the PBT of the PTT of the PET of 40 weight parts, 40 weight parts, 3 weight parts, 2 weight parts is female and 1 weight part mixes extrusion moulding in rear input extruding machine and forms the first insulation layer and the second insulation layer that are coated on metal core wire surface, last at most external covered with nylon layer, form the three layer insulation wire in the present embodiment.Wherein the thickness of first and second exhausted insulation layer is 0.03mm, nylon layer thickness 0.02mm.
Embodiment 3
The m-pseudoallyl-2 of the look of the PBT of the PTT of the PET of 50 weight parts, 15 weight parts, 10 weight parts, 1.5 weight parts is female and 3 weight parts, 2-dimethyl benzoyl isocyanic ester mixes extrusion moulding in rear input extruding machine and forms the first insulation layer and the second insulation layer that are coated on metal core wire surface, last at most external covered with nylon layer, form the three layer insulation wire in the present embodiment.Wherein the thickness of first and second exhausted insulation layer is 0.03mm, nylon layer thickness 0.05mm.
Embodiment 4
RPS that the is look of the PBT of the PTT of the PET of 60 weight parts, 30 weight parts, 20 weight parts, 1 weight part is female and 4 weight parts mixes extrusion moulding in rear input extruding machine and forms the first insulation layer and the second insulation layer that are coated on metal core wire surface, last at most external covered with nylon layer, form the three layer insulation wire in the present embodiment.Wherein the thickness of first and second exhausted insulation layer is 0.04mm, nylon layer thickness 0.02mm.
Embodiment 5
Maleic anhydride modified polyolefine that the is look of the PBT of the PTT of the PET of 70 weight parts, 35 weight parts, 8 weight parts, 1 weight part is female and 2 weight parts mixes extrusion moulding in rear input extruding machine and forms the first insulation layer and the second insulation layer that are coated on metal core wire surface, last at most external covered with nylon layer, form the three layer insulation wire in the present embodiment.Wherein the thickness of first and second exhausted insulation layer is 0.05mm, nylon layer thickness 0.02mm.
Embodiment 6
Epoxy resin that the is look of the PBT of the PTT of the PET of 65 weight parts, 20 weight parts, 40 weight parts, 1.5 weight parts is female and 1 weight part mixes extrusion moulding in rear input extruding machine and forms the first insulation layer and the second insulation layer that are coated on metal core wire surface, last at most external covered with nylon layer, form the three layer insulation wire in the present embodiment.Wherein the thickness of first and second exhausted insulation layer is 0.04mm, nylon layer thickness 0.04mm.
In the above-described embodiments, the thickness of the first insulation layer, the second insulation layer and nylon layer can set according to real needs, need not stick to concrete size, best first insulation layer, the second insulation layer are at 0.02-0.05mm, and nylon layer thickness is between 0.02-0.05mm.
Evaluation Example
The insulated wire that above-described embodiment 1-6 is prepared and the common commercially available insulated wire using PET as insulation layer, intercept 30mm respectively, by insulation displacement metal core wire, as tested object (not comprising nylon layer), adopt electronic universal material testing machine to measure its acute recovery stretch and residual deformation value after stretching for ten times, its determination data is as shown in table 1.Experimental result shows, and be mixed into PBT and PTT in PET insulating material after, the anxious elastic recovery rate of the application's insulating material significantly improves, and ten times stretching residual deformation obviously reduces, and material flexibility, ductility improve obviously.
The insulated wire that above-described embodiment 1-6 prepares separately is intercepted 30mm, remove nylon layer, get intermediate point repeatedly after bending 60 times insulated wire without considerable change, and bending is carried out about 10 times to the common commercially available insulated wire using PET as insulation layer, bending part insulating material becomes in vain micro-.Show that the insulating material quality adopting the application's method to obtain is pliable and tough, stressed rear extension ability is strong.
Table 1 is the quantitative measurement result of the insulating material that embodiment 1-6 and pure PET insulating material prepare
Above-described embodiment is only for clearly example being described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of extending out or variation be still among the protection domain of the invention.
Claims (9)
1. a folding insulating material, comprises PET, it is characterized in that, also comprises PBT and PTT, and with parts by weight, described PET is 30-70 part, and PTT is 15-60 part, and PBT is 3-40 part.
2. folding insulating material according to claim 1, is characterized in that, the look also comprising 1-2 part is female.
3. folding insulating material according to claim 1 and 2, is characterized in that, also comprises the compatilizer of 1-4 part.
4. folding insulating material according to claim 3, is characterized in that, PET is 50-70 part, and PTT is 30-40 part, and PBT is 10-30 part.
5. a three layer insulation wire, metal core wire is disposed with the first insulation layer, the second insulation layer and nylon layer from inside to outside, it is characterized in that, described first insulation layer and the second insulation layer are made by the arbitrary described insulating material of claim 1-4.
6. three layer insulation wire according to claim 5, is characterized in that, the thickness of described first insulation layer or the second insulation layer is 0.02-0.05mm.
7. the three layer insulation wire according to claim 5 or 6, is characterized in that, the thickness of described nylon layer is 0.02-0.05mm.
8. the three layer insulation wire according to claim 5 or 6, is characterized in that, after described PET, PTT and PBT Homogeneous phase mixing, described first insulation layer or described second insulation layer are made in extrusion moulding.
9. three layer insulation wire according to claim 8, is characterized in that, after described PET, PTT and PBT mixing, also comprises the step adding look mother and compatilizer before extrusion moulding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410727290.XA CN104479303B (en) | 2014-12-03 | 2014-12-03 | A kind of folding insulant and use the three layer insulation wire of this material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410727290.XA CN104479303B (en) | 2014-12-03 | 2014-12-03 | A kind of folding insulant and use the three layer insulation wire of this material |
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| CN104479303A true CN104479303A (en) | 2015-04-01 |
| CN104479303B CN104479303B (en) | 2016-07-06 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352092A (en) * | 2011-09-07 | 2012-02-15 | 上海日之升新技术发展有限公司 | Flame-retardant glass fiber reinforced polyethylene terephthalate (PET)/ polytrimethylene terephthalate (PTT)/ polybutylene terephthalate (PBT) alloy material and preparation method thereof |
| CN103426567A (en) * | 2012-05-21 | 2013-12-04 | 上海川叶电子科技有限公司 | Inflaming retarding type three-layer insulating wire manufacturing method |
| CN103426568A (en) * | 2012-05-21 | 2013-12-04 | 上海川叶电子科技有限公司 | Method for manufacturing temperature-resistance and wear-resisting three-layer insulated wire |
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2014
- 2014-12-03 CN CN201410727290.XA patent/CN104479303B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352092A (en) * | 2011-09-07 | 2012-02-15 | 上海日之升新技术发展有限公司 | Flame-retardant glass fiber reinforced polyethylene terephthalate (PET)/ polytrimethylene terephthalate (PTT)/ polybutylene terephthalate (PBT) alloy material and preparation method thereof |
| CN103426567A (en) * | 2012-05-21 | 2013-12-04 | 上海川叶电子科技有限公司 | Inflaming retarding type three-layer insulating wire manufacturing method |
| CN103426568A (en) * | 2012-05-21 | 2013-12-04 | 上海川叶电子科技有限公司 | Method for manufacturing temperature-resistance and wear-resisting three-layer insulated wire |
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| CN104479303B (en) | 2016-07-06 |
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Effective date of registration: 20200901 Address after: 2 / F, plant 1, No. 9, Weisan Road, industrial park, Jiangdong new district, Heyuan City, Guangdong Province, 517000 Patentee after: Heyuan Keshun insulating material Co., Ltd Address before: Baoan District Songgang Tangxia street Shenzhen city Guangdong province 518105 Bay Community Shuiquan Lu constant Ka Yip Technology Park A building two floor 1F101 Patentee before: SHENZHEN KAIZHONG HEDONG NEW MATERIAL Co.,Ltd. |