CN105958226A - Carbon nanotube modification based resistance-reduction grounding module and preparation method therefor - Google Patents
Carbon nanotube modification based resistance-reduction grounding module and preparation method therefor Download PDFInfo
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- CN105958226A CN105958226A CN201610474825.6A CN201610474825A CN105958226A CN 105958226 A CN105958226 A CN 105958226A CN 201610474825 A CN201610474825 A CN 201610474825A CN 105958226 A CN105958226 A CN 105958226A
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- module body
- earthing module
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- grounding module
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
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- Polyurethanes Or Polyureas (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The invention relates to a carbon nanotube modification based resistance-reduction grounding module and a preparation method therefor, and belongs to the technical field of safety grounding. The interior of a rectangular cylindrical or cuboid-shaped grounding module body is connected with a metal core electrode in a cross-under way; penetration circular holes are uniformly formed in the grounding module body; the interiors of the circular holes are filled with a chemical resistance reducing agent; a polyurethane raw material and carbon nanotubes are added to a stirrer to be stirred to obtain a uniformly-mixed conductive foaming polyurethane stock preparation material; the penetration holes of the grounding module body are filled with the conductive foaming polyurethane stock preparation material in an injecting manner; and the polyurethane is foamed and cured in the penetration holes. The carbon nanotube modification based resistance-reduction grounding module has the advantages that the flow away of the carbon nanotubes is avoided with increased service time, so that the grounding module has an obvious long-term resistance-reducing effect; and due to the carbon nanotube-modified strong electrolyte material processed by the foaming process, the contact area of the grounding material on the unit area is maximized, so that the current dissipation capability is enhanced.
Description
Technical field
The present invention relates to safety ground technical field, refer more particularly to a kind of CNT strong resistance-reducing grounding module with macromolecular material foaming combination and preparation method thereof, for working earthing, safety ground and lightning protection.
Background technology
In order to work and security needs; electric power, communication, railway, system and the building such as intelligent building, ammunition depot need to install various discharging rod, spark gap and lightning conduction; powerful for the moment of thunder and lightning electric current is introduced the earth by earthed system; to protect the safety of various facilities, so the quality of earthing module is just related to the effect of lightning protection.Earthing module resistance-lowering material known today, mainly it is made up of graphite, electrolyte and binding agent, add water after these composition mix homogeneously coagulation forming or compressing on machine, it is prepared as earthing module, the purpose inserting electrolyte is to realize chemical electric resistance reducing, improves integral ground resistance, because electrolyte penetrates into soil for a long time is easily caused the loss of electrolyte, affect the resistance reducing effect of earthing module, therefore chemical electric resistance reducing effect inconspicuous during actual application.
Summary of the invention
The present invention provides a kind of resistance-reducing grounding module based on carbon nano-tube modification and preparation method thereof, with solve resistance-reducing grounding module actual application time chemical electric resistance reducing DeGrain problem.
The present invention adopts the technical scheme that: the earthing module body interior of rectangle cylinder or cuboid and the cross-under of metal-cored pole, and this earthing module body is uniformly distributed and penetrates circular opening, and full chemical resistance-reducing agent is filled in the inside of this circular opening.
The earthing module body of rectangle cylinder of the present invention or cuboid is by graphite and adhesive machine-shaping.
Metal-cored extremely sacrificial anode inner core of the present invention.
The preparation method of a kind of resistance-reducing grounding module based on carbon nano-tube modification of the present invention: comprise the following steps:
(1) preparation of the earthing module body of rectangle cylinder or cuboid: by graphite and adhesive machine-shaping, and metal-cored pole is positioned at middle part, as earthing module body, produce on the surface of earthing module body simultaneously equally distributed do not damage earthing module mechanical strength penetrate circular opening, divide as physics fall resistance part；
(2) chemical resistance-reducing agent part includes raw material and the preparation process of following parts by weight:
CNT 0.5-0.6 part
Polyethers 95 ~ 105 parts
Dehydrated alcohol 95 ~ 105 parts
Diisocyanate 100-180 part
Catalyst: organotin 1-4 part
Foam stabiliser: silicone oil 1-4 part
(1), carbon nano tube surface processes and dispersion: utilize strong acid sulphuric acid, nitric acid or potassium permanganate as strong oxidizer, CNT is carried out surface modification treatment, increase the carboxyl of carbon nano tube surface, the quantity of aldehyde radical active group, surface-treated CNT, dehydrated alcohol and polyethers are mixed, disperse under ultrasonication, form scattered CNT polyether polyol suspension；
(2), mixing: catalyst organotin, foam stabiliser silicone oil are joined in CNT polyether polyol suspension, stirs with agitator；
(3), foamed polymer: under the state of stirring, diisocyanate is joined in mixed solution, when there being gas to produce, rapidly mixture is poured into penetrating in circular opening of earthing module body；
(4), ripening: thing to be mixed foaming be completely filled with earthing module body penetrate circular opening after, the earthing module body that will be filled with polyurathamc is put in large-scale baking oven, at 90-110 DEG C solidify 3-5 hour；
(3), open baking oven, take out sample, spilling earthing module body polyurathamc is cut away.
The invention have the advantage that
1, long-term resistance reducing effect is obvious: the carbon nano-tube modification polyurethane expanded material obtained by the present invention, the mode of in-situ polymerization can improve effective addition of CNT, during using, CNT will not run off along with the prolongation of the time of use, and the long-term resistance reducing effect of earthing module the most of the present invention is obvious.
2, dissipation current capacity is strong: the strong electrolyte material of the carbon nano-tube modification of foamed PROCESS FOR TREATMENT maximises the contact area of earthing material in unit are, therefore improves dissipation current capacity.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the A-A sectional view of the present invention；
Fig. 3 is the enlarged drawing that the present invention penetrates circular opening.
Detailed description of the invention
Earthing module body 1 inside and metal-cored pole 2 cross-under of rectangle cylinder or cuboid, this earthing module body 1 is uniformly distributed and penetrates circular opening 3, and full chemical resistance-reducing agent 4 is filled in the inside of this circular opening 3；
The earthing module body of described rectangle cylinder or cuboid is by graphite and adhesive machine-shaping；
Described metal-cored extremely sacrificial anode inner core.
Embodiment 1
The preparation method of a kind of resistance-reducing grounding module based on carbon nano-tube modification of the present invention: comprise the following steps:
(1) preparation of the earthing module body of rectangle cylinder or cuboid: by graphite and adhesive machine-shaping, and metal-cored pole is positioned at middle part, as earthing module body, produce on the surface of earthing module body simultaneously equally distributed do not damage earthing module mechanical strength penetrate circular opening, divide as physics fall resistance part；
(2) chemical resistance-reducing agent part includes raw material and the preparation process of following parts by weight:
CNT 0.5 part
Polyethers 95 parts
Dehydrated alcohol 95 parts
Diisocyanate 100 parts
Catalyst: organotin 1 part
Foam stabiliser: silicone oil 1 part
(1), carbon nano tube surface processes and dispersion: utilize strong acid sulphuric acid, nitric acid or potassium permanganate as strong oxidizer, CNT is carried out surface modification treatment, increase the carboxyl of carbon nano tube surface, the quantity of aldehyde radical active group, surface-treated CNT, dehydrated alcohol and polyethers are mixed, disperse under ultrasonication, form scattered CNT polyether polyol suspension；
(2), mixing: catalyst organotin, foam stabiliser silicone oil are joined in CNT polyether polyol suspension, stirs with agitator；
(3), foamed polymer: under the state of stirring, diisocyanate is joined in mixed solution, when there being gas to produce, rapidly mixture is poured into penetrating in circular opening of earthing module body；
(4), ripening: thing to be mixed foaming be completely filled with earthing module body penetrate circular opening after, the earthing module body that will be filled with polyurathamc is put in large-scale baking oven, at 90 DEG C solidify 3 hours；
(3), open baking oven, take out sample, spilling earthing module body polyurathamc is cut away.
Embodiment 2
The preparation method of a kind of resistance-reducing grounding module based on carbon nano-tube modification of the present invention: comprise the following steps:
(1) preparation of the earthing module body of rectangle cylinder or cuboid: by graphite and adhesive machine-shaping, and metal-cored pole is positioned at middle part, as earthing module body, produce on the surface of earthing module body simultaneously equally distributed do not damage earthing module mechanical strength penetrate circular opening, divide as physics fall resistance part；
(2) chemical resistance-reducing agent part includes raw material and the preparation process of following parts by weight:
CNT 0.55 part
Polyethers 100 parts
Dehydrated alcohol 100 parts
Diisocyanate 140 parts
Catalyst: organotin 2.5 parts
Foam stabiliser: silicone oil 2.5 parts
(1), carbon nano tube surface processes and dispersion: utilize strong acid sulphuric acid, nitric acid or potassium permanganate as strong oxidizer, CNT is carried out surface modification treatment, increase the carboxyl of carbon nano tube surface, the quantity of aldehyde radical active group, surface-treated CNT, dehydrated alcohol and polyethers are mixed, disperse under ultrasonication, form scattered CNT polyether polyol suspension；
(2), mixing: catalyst organotin, foam stabiliser silicone oil are joined in CNT polyether polyol suspension, stirs with agitator；
(3), foamed polymer: under the state of stirring, diisocyanate is joined in mixed solution, when there being gas to produce, rapidly mixture is poured into penetrating in circular opening of earthing module body；
(4), ripening: thing to be mixed foaming be completely filled with earthing module body penetrate circular opening after, the earthing module body that will be filled with polyurathamc is put in large-scale baking oven, at 100 DEG C solidify 4 hours；
(3), open baking oven, take out sample, spilling earthing module body polyurathamc is cut away.
Embodiment 3
The preparation method of a kind of resistance-reducing grounding module based on carbon nano-tube modification of the present invention: comprise the following steps:
(1) preparation of the earthing module body of rectangle cylinder or cuboid: by graphite and adhesive machine-shaping, and metal-cored pole is positioned at middle part, as earthing module body, produce on the surface of earthing module body simultaneously equally distributed do not damage earthing module mechanical strength penetrate circular opening, divide as physics fall resistance part；
(2) chemical resistance-reducing agent part includes raw material and the preparation process of following parts by weight:
CNT 0.6 part
Polyethers 105 parts
Dehydrated alcohol 105 parts
Diisocyanate 180 parts
Catalyst: organotin 4 parts
Foam stabiliser: silicone oil 4 parts
(1), carbon nano tube surface processes and dispersion: utilize strong acid sulphuric acid, nitric acid or potassium permanganate as strong oxidizer, CNT is carried out surface modification treatment, increase the carboxyl of carbon nano tube surface, the quantity of aldehyde radical active group, surface-treated CNT, dehydrated alcohol and polyethers are mixed, disperse under ultrasonication, form scattered CNT polyether polyol suspension；
(2), mixing: catalyst organotin, foam stabiliser silicone oil are joined in CNT polyether polyol suspension, stirs with agitator；
(3), foamed polymer: under the state of stirring, diisocyanate is joined in mixed solution, when there being gas to produce, rapidly mixture is poured into penetrating in circular opening of earthing module body；
(4), ripening: thing to be mixed foaming be completely filled with earthing module body penetrate circular opening after, the earthing module body that will be filled with polyurathamc is put in large-scale baking oven, at 110 DEG C solidify 5 hours；
(3), open baking oven, take out sample, spilling earthing module body polyurathamc is cut away.
Claims (4)
1. a resistance-reducing grounding module based on carbon nano-tube modification, it is characterized in that: the earthing module body interior of rectangle cylinder or cuboid and the cross-under of metal-cored pole, this earthing module body is uniformly distributed and penetrates circular opening, and full chemical resistance-reducing agent is filled in the inside of this circular opening.
A kind of resistance-reducing grounding module based on carbon nano-tube modification the most according to claim 1, it is characterised in that: the earthing module body of described rectangle cylinder or cuboid is by graphite and adhesive machine-shaping.
A kind of resistance-reducing grounding module based on carbon nano-tube modification the most according to claim 1, it is characterised in that: described metal-cored extremely sacrificial anode inner core.
The preparation method of a kind of resistance-reducing grounding module based on carbon nano-tube modification, it is characterised in that comprise the following steps:
(1) preparation of the earthing module body of rectangle cylinder or cuboid: by graphite and adhesive machine-shaping, and metal-cored pole is positioned at middle part, as earthing module body, produce on the surface of earthing module body simultaneously equally distributed do not damage earthing module mechanical strength penetrate circular opening, divide as physics fall resistance part；
(2) chemical resistance-reducing agent part includes raw material and the preparation process of following parts by weight:
CNT 0.5-0.6 part
Polyethers 95 ~ 105 parts
Dehydrated alcohol 95 ~ 105 parts
Diisocyanate 100-180 part
Catalyst: organotin 1-4 part
Foam stabiliser: silicone oil 1-4 part
(1), carbon nano tube surface processes and dispersion: utilize strong acid sulphuric acid, nitric acid or potassium permanganate as strong oxidizer, CNT is carried out surface modification treatment, increase the carboxyl of carbon nano tube surface, the quantity of aldehyde radical active group, surface-treated CNT, dehydrated alcohol and polyethers are mixed, disperse under ultrasonication, form scattered CNT polyether polyol suspension；
(2), mixing: catalyst organotin, foam stabiliser silicone oil are joined in CNT polyether polyol suspension, stirs with agitator；
(3), foamed polymer: under the state of stirring, diisocyanate is joined in mixed solution, when there being gas to produce, rapidly mixture is poured into penetrating in circular opening of earthing module body；
(4), ripening: thing to be mixed foaming be completely filled with earthing module body penetrate circular opening after, the earthing module body that will be filled with polyurathamc is put in large-scale baking oven, at 90-110 DEG C solidify 3-5 hour；
(3), open baking oven, take out sample, spilling earthing module body polyurathamc is cut away.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610474825.6A CN105958226B (en) | 2016-06-27 | 2016-06-27 | A kind of resistance-reducing grounding module and preparation method thereof based on carbon nano-tube modification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610474825.6A CN105958226B (en) | 2016-06-27 | 2016-06-27 | A kind of resistance-reducing grounding module and preparation method thereof based on carbon nano-tube modification |
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| Publication Number | Publication Date |
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| CN105958226A true CN105958226A (en) | 2016-09-21 |
| CN105958226B CN105958226B (en) | 2018-10-26 |
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| CN109873257A (en) * | 2019-02-27 | 2019-06-11 | 国网陕西省电力公司电力科学研究院 | Reduce the capacitance compensation type grounding body and preparation method of earthing or grounding means impact impedance |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1805218A (en) * | 2005-01-13 | 2006-07-19 | 李新利 | Quick-mounted earthing pole containing resistance-reducing agent |
| CN101250321A (en) * | 2008-03-18 | 2008-08-27 | 四川大学 | Preparation of light electric polyurethane foam plastic |
| CN201191652Y (en) * | 2007-11-20 | 2009-02-04 | 李黔鲁 | Strongly resistance reducing earthing module |
| CN202737118U (en) * | 2012-07-04 | 2013-02-13 | 沈阳华威电力设备有限公司 | High-efficiency resistance-reducing grounding module |
| CN103985976A (en) * | 2014-05-09 | 2014-08-13 | 广西南宁百兰斯科技开发有限公司 | Gear type anti-thunder grounding body |
| CN205752594U (en) * | 2016-06-27 | 2016-11-30 | 国网吉林省电力有限公司电力科学研究院 | A kind of resistance-reducing grounding module based on carbon nano-tube modification |
-
2016
- 2016-06-27 CN CN201610474825.6A patent/CN105958226B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1805218A (en) * | 2005-01-13 | 2006-07-19 | 李新利 | Quick-mounted earthing pole containing resistance-reducing agent |
| CN201191652Y (en) * | 2007-11-20 | 2009-02-04 | 李黔鲁 | Strongly resistance reducing earthing module |
| CN101250321A (en) * | 2008-03-18 | 2008-08-27 | 四川大学 | Preparation of light electric polyurethane foam plastic |
| CN202737118U (en) * | 2012-07-04 | 2013-02-13 | 沈阳华威电力设备有限公司 | High-efficiency resistance-reducing grounding module |
| CN103985976A (en) * | 2014-05-09 | 2014-08-13 | 广西南宁百兰斯科技开发有限公司 | Gear type anti-thunder grounding body |
| CN205752594U (en) * | 2016-06-27 | 2016-11-30 | 国网吉林省电力有限公司电力科学研究院 | A kind of resistance-reducing grounding module based on carbon nano-tube modification |
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