CN202727417U - Resin-based composite material core rod with improved weather resistance - Google Patents
Resin-based composite material core rod with improved weather resistance Download PDFInfo
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- CN202727417U CN202727417U CN 201220341153 CN201220341153U CN202727417U CN 202727417 U CN202727417 U CN 202727417U CN 201220341153 CN201220341153 CN 201220341153 CN 201220341153 U CN201220341153 U CN 201220341153U CN 202727417 U CN202727417 U CN 202727417U
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Abstract
The utility model relates to the technical field of electric transmission line overhead conductors and particularly discloses a resin-based composite material core rod with the improved weather resistance. The resin-based composite material core rod comprises a resin-based composite material inner core, a resign layer and a coating layer, wherein the resin-based composite material inner core is arranged inside the resign layer, and the coating layer is wrapped outside the resign layer. The resin-based composite material core rod with the improved weather resistance has better heat resistance and anti-ultraviolet performance, in addition, a preparation method is simple, the cost is low, the matching with a core rod production line can be realized, the efficiency of the original core rod production line is not influenced, and the preparation method is suitable for the industrial production of high-quality core rods.
Description
Technical field
The utility model relates to transmission line of electricity aerial condutor technical field, specifically discloses the improved polymer matrix composites plug of a kind of weatherability.
Background technology
Along with the fast development of China's economy, to the demand sustainable growth of electric power, therefore need constantly to increase the transmission capacity of conveying circuit.The tradition aerial condutor adopts steel-cored aluminium strand, owing to adopting steel core as strengthening core, it has the shortcomings such as weight is large, thermal coefficient of expansion is high, intensity is low, when improving the circuit transmission capacity, can bring the safety problems such as sag is large.
Therefore developed the soft type aluminum stranded conductor of a kind of fiber reinforced resin based composite core both at home and abroad.Described fiber-reinforced resin matrix compound material is for take resin as matrix, take fiber or its fabric as strengthening the composite of body.Intensity is large, high temperature resistant, linear expansion coefficient is little because the fiber-reinforced resin matrix compound material plug has, lightweight characteristics, the sag characteristic that it is conducive to improve wire during as the wire strengthening core, thereby the compound core conducting wire that adopts the manufacturing of fiber-reinforced resin matrix compound material plug is compared circuit with the isostructure steel-cored aluminium strand conveying capacity can significantly improve, effectively reduce simultaneously line-sag, improve safety coefficient.
But because the outer resin bed that adopts of plug coats, and the characteristic of resin material has determined its meeting heat ageing under hot environment, the simultaneously ultraviolet ray in the external environment can make it decompose, and greatly reduces the life-span of composite core rod, has brought very large potential safety hazard to transmission line of electricity.This is so that the user has a lot of misgivings when using this novel conductive wire.
Therefore must improve the weather resistance of plug, traditional way is by improving the resin matrix performance, add certain age-inhibiting addition and improve its weather resistance, but can bring the resin cost to improve, the shortcomings such as processing characteristics reduction, finally have influence on the cost of plug, and then the cost of whole wire is increased.Therefore be necessary to solve the weatherability problem of plug not improving existing plug usefulness resin cost and processing cost under the day before yesterday, have great technology and economic implications.
The utility model content
The purpose of this utility model is to overcome the defective of prior art, provides a kind of weatherability improved polymer matrix composites plug.
The technical solution of the utility model is: the improved polymer matrix composites plug of a kind of weatherability, comprise polymer matrix composites inner core, resin bed, and also comprise dope layer; It is inner that described polymer matrix composites inner core is arranged at described resin bed, and described dope layer is wrapped in the outside of described resin bed.
More excellent, described thickness of coating layer is 30～40 μ m.
More excellent, described resin bed is epoxy resin layer.
More excellent, described resin bed is novolac epoxy resin layer or vinyl epoxy resin layer.
The coating that consists of described dope layer comprises the component of following percentage by weight:
Fluorocarbon resin 40～70%
The organic solvent 20～40% that mixes with fluorocarbon resin
Curing agent 5～25%.
More excellent, described coating comprises the component of following percentage by weight:
Fluorocarbon resin 50～60%
The organic solvent 25～35% that mixes with fluorocarbon resin
Curing agent 10～20%.
More excellent, described fluorocarbon resin is the PEVE fluorocarbon resin.
More excellent, described PEVE fluorocarbon resin is obtained by fluorochemical monomer and alkyl vinyl ether copolymerization.
Further, the mass ratio of described fluorochemical monomer and alkyl vinyl ether is 4～6:1.
Optimum, described fluorochemical monomer is CTFE.
More excellent, the described organic solvent that mixes with fluorocarbon resin is selected from butyl acetate, ethyl acetate, methyl iso-butyl ketone (MIBK) or propylene glycol methyl ether acetate.
More excellent, described curing agent is selected from hexamethylene diisocyanate biuret, hexamethylene diisocyanate trimer or isophorone two single cyanates.
Optimum, described curing agent is the hexamethylene diisocyanate biuret.
The preparation method of described coating, step is:
1) mixes in proportion, is uniformly dispersed with fluorocarbon resin with organic solvent that fluorocarbon resin mixes, then finely dispersed mixture is ground, obtain the fluorocarbon resin dispersion liquid;
2) in the fluorocarbon resin dispersion liquid of previous step, add in proportion curing agent, fully stir and mix, obtain coating.
More excellent, the mixing of step 1) fluorocarbon resin and organic solvent, dispersion adopt high speed dispersor to disperse 5～15min.More excellent, adopt high speed dispersor to disperse 10min.
More excellent, the fluorocarbon resin dispersion liquid fineness that step 1) obtains reaches 20～40 μ m.Optimum, fluorocarbon resin dispersion liquid fineness reaches 30 μ m.
More excellent, step 2) add curing agent in the fluorocarbon resin dispersion liquid after, fully stir and mix through high speed dispersor.
The preparation method of the improved polymer matrix composites plug of the utility model weatherability forms coating for adopting spray painting of the present utility model to polymer matrix composites mandrel outer surface; The oven dry coating.
More excellent, described spraying is for adopting compressed air that coating is sprayed.
More excellent, described spraying rate is 0.5～1.2m/min; Optimum, described spraying rate is 1m/min.
More excellent, described coating layer thickness is 30～40 μ m.
More excellent, described bake out temperature is 30～50 ℃.
More excellent, before spray painting is arrived resin-based composite core rod outer surface, plug is cleared up, remove the mandrel surface spot.
More excellent, adopt ethanol (alcohol) that plug is cleared up.
In polymer matrix composites mandrel outer surface formation coating and after with coated and dried, with the upper dish of plug packing, obtain the improved polymer matrix composites plug of weatherability.
After adopting coating that plug is carried out surface treatment, can significantly improve the weather resistance of composite core rod; And the improved polymer matrix composites plug of weatherability of the present utility model has preferably heat resistance and uvioresistant performance, the preparation method is simple, with low cost, can mate with existing plug production line, do not affect former plug production line efficiency, be applicable to the suitability for industrialized production of high-quality plug.
Description of drawings
Fig. 1: the improved polymer matrix composites mandrel structure of weatherability schematic diagram (1. polymer matrix composites inner core 2. resin beds 3. dope layers)
The specific embodiment
Further set forth the utility model below in conjunction with specific embodiment, should be understood that embodiment only is used for explanation the utility model and is not used in restriction protection domain of the present utility model.
The improved polymer matrix composites plug of a kind of weatherability as shown in Figure 1 comprises polymer matrix composites inner core 1, resin bed 2, also comprises dope layer 3; Polymer matrix composites inner core 1 is arranged at resin bed 2 inside, and dope layer 3 is wrapped in the outside of resin bed 2.
The preparation method of the improved polymer matrix composites plug of weatherability is selected from following arbitrary:
Method one:
1. experiment material:
The A.PEVE fluorocarbon resin is available from Shanghai Hengfeng Fluorocarbon Material Co., Ltd.
B. plug: inner core is that 30% carbon fiber, 50% glass fibre and 20% modified epoxy resin (available from U.S. Hensel Man) form by volume ratio; The resin matrix of plug outer resin layer is modified epoxy resin (available from U.S. Hensel Man); Be designated as C1.
2. experimental technique
1) PEVE fluorocarbon resin and butyl acetate are disperseed approximately 10min by the mass ratio mixing of 1:1 and with high speed dispersor, then mixture is ground to fineness through sand mill and reaches 30 μ m, obtain the fluorocarbon resin dispersion liquid.
2) the fluorocarbon resin dispersion liquid that makes more than the general adds the hexamethylene diisocyanate biuret by the mass ratio of 4:1, fully stirs and mixes through high speed dispersor, can make fluorocarbon radical coating.
3) by ethanol (alcohol) plug C1 is cleaned, remove its surface blot etc.
4) utilize compressed air with spray painting on plug C1, speed is 1m/min, coating layer thickness is 30 μ m.
5) at 30 ℃ plug is dried.
6) plug after will drying is packed dish, obtains the improved polymer matrix composites plug of weatherability and is denoted as S1.
Method two:
1. experiment material:
The A.PEVE fluorocarbon resin is with embodiment 1.
B. plug: inner core is 30% carbon fiber, 50% aramid fibre and 20% vinyl epoxy resin (available from Shanghai synthetic resin research institute) by volume ratio; Plug outer resin layer matrix is vinyl epoxy resin; Be designated as C2.
2. experimental technique
1) PEVE fluorocarbon resin and ethyl acetate are disperseed approximately 15min by the mass ratio mixing of 7:2 and with high speed dispersor, then mixture is ground to fineness through sand mill and reaches 40 μ m, obtain the fluorocarbon resin dispersion liquid.
2) the fluorocarbon resin dispersion liquid that makes more than the general adds the hexamethylene diisocyanate biuret by the mass ratio of 9:1, fully stirs and mixes through high speed dispersor, can make fluorocarbon radical coating.
3) by ethanol (alcohol) plug C2 is cleaned, remove its surface blot etc.
4) utilize compressed air with spray painting on plug C2, speed is 0.5m/min, coating layer thickness is about 35 μ m.
5) in 40 ℃ of scopes, plug is dried.
6) plug after will drying is packed dish, is denoted as S2.
Method three:
1. experiment material:
The A.PEVE fluorocarbon resin is with embodiment 1.
B. plug: inner core is that 35% carbon fiber, 45% glass fibre and 20% phenolic aldehyde basic ring epoxy resins (available from Xinhua Resin Factory, Shanghai) form by volume ratio; Plug outer resin layer matrix is phenolic aldehyde basic ring epoxy resins; Be designated as C3.
2. experimental technique
1) PEVE fluorocarbon resin and methyl iso-butyl ketone (MIBK) are disperseed approximately 15min by the mass ratio mixing of 12:7 and with high speed dispersor, then mixture is ground to fineness through sand mill and reaches 20 μ m, obtain the fluorocarbon resin dispersion liquid.
2) the fluorocarbon resin dispersion liquid that makes more than the general adds hexamethylene diisocyanate trimer by the mass ratio of 19:1, fully stirs and mixes through high speed dispersor, can make fluorocarbon radical coating.
3) by ethanol (alcohol) plug C3 is cleaned, remove its surface blot etc.
4) utilize compressed air with spray painting on plug C3, speed is 1.2m/min, coating layer thickness is about 40 μ m.
5) in 50 ℃ of scopes, plug is dried.
6) plug after will drying is packed dish, is denoted as S3.
Method four
1. experiment material:
The A.PEVE fluorocarbon resin is with embodiment 1.
B. plug: inner core is 35% carbon fiber, 45% aramid fibre and 20% phenolic aldehyde basic ring epoxy resins (available from Xinhua Resin Factory, Shanghai) by volume ratio; Plug outer resin layer matrix is phenolic aldehyde basic ring epoxy resins; Be designated as C4.
2. experimental technique
1) PEVE fluorocarbon resin and propylene glycol methyl ether acetate are disperseed approximately 5min by the mass ratio mixing of 2:1 and with high speed dispersor, then mixture is ground to fineness through sand mill and reaches 30 μ m, obtain the fluorocarbon resin dispersion liquid.
2) the fluorocarbon resin dispersion liquid that makes more than the general adds isophorone two single cyanates by 3:1, fully stirs and mixes through high speed dispersor, can make fluorocarbon radical coating.
3) by ethanol (alcohol) plug C4 is cleaned, remove its surface blot etc.
4) utilize compressed air with spray painting on plug C4, speed is 1m/min, coating layer thickness is about 35 μ m.
5) in 30 ℃ of scopes, plug is dried.
6) plug after will drying is packed dish, is denoted as S4.
The detection of material character:
1. experimental subjects
The heat resistance and the anti-ultraviolet property that are coated with the polymer matrix composites plug S1-S4 that improves the material weatherability coating to method one to four preparation detect, and experimental data is as follows:
2. detection method and data
2.1 plug heat-resistant aging
2.1.1 detection method:
1) original tensile strength: (S1-S4) is left intact to plug to be detected, get the appropriate length sample, the termination is carried out at two ends, and the termination of handling well can firmly be fixed on the puller system, guarantee not landing of sample in the axial tension test, sample stickiness length should be not less than 70D simultaneously.The longitudinal axis that guarantees sample in the test overlaps with the center line of stretching.Draw speed should be taken as 1mm/min～6mm/min, detects mandril strength.
2) Testing Tensile Strength at Elevated Temperature: with plug (S1-S4) after placing 400h under 190 ℃ of temperature, get the appropriate length sample, the termination is carried out at two ends, the termination of handling well can firmly be fixed on the puller system, guarantee not landing of sample in the axial tension test, sample stickiness length should be not less than 70D simultaneously.The longitudinal axis that guarantees sample in the test overlaps with the center line of stretching.Draw speed should be taken as 1mm/min～6mm/min, detects mandril strength.
3) examination criteria: it is qualified that the Testing Tensile Strength at Elevated Temperature of detected object is not less than 95% of its nominal strength.
2.1.2 testing result
Table 1 plug heat-proof aging experimental result
As shown in Table 1, the Testing Tensile Strength at Elevated Temperature of detected object S1-S4 all is not less than 95% of its original tensile strength, and the plug quality of the utility model spray painting preparation is all qualified.
2.2 plug anti-ultraviolet aging performance
2.2.1 detection method
1. the preparation of experimental subjects:
1) experimental group: the improved plug S1-S4 of method one to four preparation is positioned over ultraviolet wavelength 340nm, and intensity is 0.76W/m
2UV-irradiation under, adopt circulation to expose mode to the open air, wherein every circulation irradiation open-assembly time is 4h, exposes altogether 1008h to the open air.
2) control group: the plug C1-C4 that is not coated with dope layer according to method one to four is positioned over ultraviolet wavelength 340nm, and intensity is 0.76W/m
2UV-irradiation under, adopt circulation to expose mode to the open air, wherein every circulation irradiation open-assembly time is 4h, exposes altogether 1008h to the open air.
3) blank group: get the plug C1-C4 that embodiment 1-4 is not coated with dope layer, be left intact.
2.2.2 evaluation criterion:
Whether after plug exposes 1008h to the open air, detecting its surface has stickness, and fiber is exposed, crackle or crack performance.
2.3 testing result
The plug of S1-S4 carry out ultraviolet light circulation expose detect 1008h after, its surface is non-blocking, exposed without fiber, crackle or crack performance all, front surface is the same with placing.The phenomenons such as fiber is exposed, crackle then appear in the plug C1-C4 of uncoated coating after the ultraviolet light circulation exposes.
Claims (2)
1. the improved polymer matrix composites plug of weatherability comprises polymer matrix composites inner core, resin bed, it is characterized in that, also comprises dope layer; It is inner that described polymer matrix composites inner core is arranged at described resin bed, and described dope layer is wrapped in the outside of described resin bed.
2. plug as claimed in claim 1 is characterized in that, described thickness of coating layer is 30～40 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220341153 CN202727417U (en) | 2012-07-13 | 2012-07-13 | Resin-based composite material core rod with improved weather resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220341153 CN202727417U (en) | 2012-07-13 | 2012-07-13 | Resin-based composite material core rod with improved weather resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202727417U true CN202727417U (en) | 2013-02-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220341153 Expired - Fee Related CN202727417U (en) | 2012-07-13 | 2012-07-13 | Resin-based composite material core rod with improved weather resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202727417U (en) |
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2012
- 2012-07-13 CN CN 201220341153 patent/CN202727417U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20190713 |