CN105111928B - A kind of special reversible thermocoating of high-temperature-resisting transformer pile crown and preparation method thereof - Google Patents
A kind of special reversible thermocoating of high-temperature-resisting transformer pile crown and preparation method thereof Download PDFInfo
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Abstract
The present invention provides a kind of special reversible thermocoating of high-temperature-resisting transformer pile crown and preparation method thereof, including following component and its mass fraction：Component A：40~75 parts of epoxy modified silicone resin, 10~30 parts of temperature-sensitive powder, 1~5 part of dispersant, 1~5 part of levelling agent, 1~3 part of defoamer, 1~10 part of solvent；B component：50 parts of epoxy hardener, 50 parts of cyclohexanone；The mass ratio of the component A and B component is 4~5 ︰ 1.Product of the present invention has good resistance to elevated temperatures, can be by the change of the change indicating transformer pile crown temperature of color, and temperature changing speed is fast, and rewarming time is short, meanwhile, preparation method is simple, and cost is cheap.
Description
Technical field
The present invention relates to coating manufacturing technology field, and in particular to a kind of special reversible temperature indicating of high-temperature-resisting transformer pile crown applies
Material and preparation method thereof.
Background technology
Thermo-color is a kind of new temperature measurement tool with specific use, and it is indicated with color or outward appearance phenomenon
A kind of coating of body surface temperature and Temperature Distribution, because can be in the case where thermometer, millivoltmeter etc. are unable to the occasion of thermometric effectively
Use, and with simple, it is quickly, convenient, it is directly perceived the features such as, so being paid attention to by scientific and technological circle of various countries, and carried out substantial amounts of
Research work.
Power transformer plays a very important role in the operation in power network, and the normal work of transformer is to whole electricity
The stabilization of Force system has highly important meaning.Transformer plays important of energy conversion and conveying in power system
Business, and power transformer heating can cause pile crown sealing ring aging permeability, oil is spilled over to sleeve pipe, easily the gold of the upper electric conductivity of absorption
Belong to dust, when meeting sleety weather humidity increase, then overvoltage occur, be just easy to cause electric discharge or blast, destroying power network
Unthinkable injury may also be caused while system.
Checking that transformer pile head temperature uses infrared measurement of temperature method at present, this method cost of labor is high, and when equipment is pacified
Dress apart from ground it is higher when, operation maintenance personnel need to ascend a height operation, increase danger.Therefore, transformer can be adapted to by developing one kind
The thermo-color used also just turns into the task of top priority.
The content of the invention
It is an object of the invention to provide a kind of special reversible thermocoating of high-temperature-resisting transformer pile crown and preparation method thereof, production
Product have good resistance to elevated temperatures, can pass through the change of the change indicating transformer pile crown temperature of color, and temperature change
Speed is fast, and rewarming time is short, meanwhile, preparation method is simple, and cost is cheap.
To achieve these goals, the technical solution adopted by the present invention is as follows：
A kind of special reversible thermocoating of high-temperature-resisting transformer pile crown, including following component and its mass fraction：Component A：
40~75 parts of epoxy modified silicone resin, 10~30 parts of temperature-sensitive powder, 1~5 part of dispersant, 1~5 part of levelling agent, defoamer 1~
3 parts, 1~10 part of solvent；B component：50 parts of epoxy hardener, 50 parts of cyclohexanone；The mass ratio of the component A and B component is 4
~5 ︰ 1.
According to above scheme, the temperature change section of the temperature-sensitive powder is 50 DEG C~70 DEG C.
According to above scheme, the solvent is dimethylbenzene.
A kind of preparation method of the special reversible thermocoating of high-temperature-resisting transformer pile crown, comprises the following steps：
1) stir after mixing epoxy modified silicone resin, dispersant, levelling agent, defoamer, solvent, divided in advance
Dissipate, obtain pre-dispersed mixture；
2) temperature-sensitive powder and pre-dispersed mixture are put into grinder in the lump, are ground, are ground to after adding bead
Fineness reaches less than 40 μm, and component A is obtained after filtering；
3) epoxy hardener and cyclohexanone are prepared according to the ︰ 1 of mass ratio 1 and are added in container, be uniformly mixing to obtain B groups
Point；
4) component A is prepared in proportion with B component, product is made after stirring.
According to above scheme, the rotating speed of stirring is less than or equal to 1500r/min in the step 1), and the pre-dispersed time is
30min。
According to above scheme, the temperature-sensitive powder in the step 2) divides 2 times to be added in grinder in 1h.
After the completion of component A is prepared with B component, preferably mixed in 3h and carry out coating decoration.
Dispersant is high 750 dispersant of enlightening (W of Tego Dispers 750), high 715 dispersant (the Tego Dispers of enlightening
715 W), it is high 710 dispersant of enlightening (Tego Dispers 710), any one in EFKA dispersant 4310 (EFKA 44310)
Kind.
Levelling agent is that high 100 levelling agent of enlightening (Tego Glide 100), the levelling agents of Bi Ke 333 (BYK-333), enlightening are high by 1484
Levelling agent (Tego Glide 1484), Taiwan add up to any one in defoamer and levelling agent D201 (D201).
Defoamer is that modest 5300 defoamer (Deform 5300) of moral, high 825 defoamer (Tego 825) of enlightening, enlightening high 900 disappear
Any one in infusion (Tego Airex 932).
The beneficial effects of the invention are as follows：
1) resinoid bond of the invention selection epoxy modified silicone resin, while filming performance is good, has
Good high temperature resistant ageing-resistant performance, add the life-span of transformer pile head；
2) rational proportion of each component, with reference to the addition of the temperature-sensitive powder of uniqueness, transformer stake can not be suitable in arrival
Quick color-changing under the temperature environment of head, the possibility occurred to staff with warning function, reduction failure, meanwhile, for short
The elevated situation of time-temperature, treats that temperature lowers, and color is understood oneself and restored, and staff is had the temperature of transformer pile head
One easier intuitively to recognize；
In summary, function admirable of the present invention, raw material is simple and easy to get, easy for construction, excellent performance, suitable for extensive work
Industry produces, and after use, obtained coating not only has the function of reversible temperature indicating, while has excellent resistance to elevated temperatures, not
There can be good development prospect.
Embodiment
Technical scheme is illustrated with reference to embodiment.
Embodiment 1：
The present invention provides a kind of special reversible thermocoating of high-temperature-resisting transformer pile crown and preparation method thereof, including following step
Suddenly：
1) by 120g epoxy modified silicone resins (Tego Dispers750 W), 8g dispersants (Tego
Dispers750 W), 6g defoamers (Deform 5300), 6g levelling agents (BYK-333), 6g solvents (dimethylbenzene) mixing add
Into beaker, then stir, speed of agitator 600r/min, carry out pre-dispersed 30min, obtain pre-dispersed mixture；
2) 20g temperature-sensitives powder and pre-dispersed mixture are put into grinder in the lump, are ground after adding bead, section turns
Speed grinds 40min, continuously adds 20g temperature-sensitive powder into grinder, be ground to fineness and reach less than 40 μm to 1200r/min, mistake
Component A is obtained after filter；
3) 50g epoxy hardeners and 50g cyclohexanone are added in beaker, are uniformly mixing to obtain B component；
4) component A and B component are prepared in 4 ︰ 1 ratio, product is made after stirring.
Embodiment 2：
The present invention provides a kind of special reversible thermocoating of high-temperature-resisting transformer pile crown and preparation method thereof, including following step
Suddenly：
1) by 100g epoxy modified silicone resins, 8g dispersants (W of Tego Dispers 715), 6g defoamers
(Deform 5300), 6g levelling agents (BYK-333), 6g solvents (dimethylbenzene) are mixed to join in beaker, then stirred, stirring
Rotating speed is 600r/min, carries out pre-dispersed 30min, obtains pre-dispersed mixture；
2) 30g temperature-sensitives powder and pre-dispersed mixture are put into grinder in the lump, are ground after adding bead, section turns
Speed grinds 40min, continuously adds 30g temperature-sensitive powder into grinder, be ground to fineness and reach less than 40 μm to 1200r/min, mistake
Component A is obtained after filter；
3) 50g epoxy hardeners and 50g cyclohexanone are added in beaker, are uniformly mixing to obtain B component；
4) component A and B component are prepared in 4 ︰ 1 ratio, product is made after stirring.
Embodiment 3：
The present invention provides a kind of special reversible thermocoating of high-temperature-resisting transformer pile crown and preparation method thereof, including following step
Suddenly：
1) 110g epoxy modified silicone resins, 8g dispersants (EFKA4310), 6g defoamers (Tego 825), 6g are flowed
Flat agent (Tego Glide 100), 6g solvents (dimethylbenzene) are mixed to join in beaker, then stirred, speed of agitator 600r/
Min, pre-dispersed 30min is carried out, obtain pre-dispersed mixture；
2) 25g temperature-sensitives powder and pre-dispersed mixture are put into grinder in the lump, are ground after adding bead, section turns
Speed grinds 40min, continuously adds 25g temperature-sensitive powder into grinder, be ground to fineness and reach less than 40 μm to 1200r/min, mistake
Component A is obtained after filter；
3) 50g epoxy hardeners and 50g cyclohexanone are added in beaker, are uniformly mixing to obtain B component；
4) component A and B component are prepared in 5 ︰ 1 ratio, product is made after stirring.
On the product even application of embodiment 1 to 3 to tinplate, 60 DEG C baking oven observation phenomenons will be put into, it was observed that face
Color is changed into pink colour from grey, takes out and places 3min at room temperature, it is found that color becomes grey again from pink colour.
The product effect of embodiment 1 to 3 is verified by experiment, in the verification, from the tinplate of state's dimensioning,
The iron plate is polished with 500 mesh sand paper, is polishing to and washes one's face and clean up, respectively numbering 1, and 2,3, sprayed, sprayed with spray gun
Finish and be put into 80 DEG C of baking ovens, its performance is tested afterwards, test result such as table 1.
The properties of product test result of table 1
Test result shows that product of the present invention has excellent combination property, and temperature changing speed is fast, and rewarming time is short,
The special requirement of transformer pile head can be met.
Embodiment 4：
The present invention provides a kind of special reversible thermocoating of high-temperature-resisting transformer pile crown and preparation method thereof, including following step
Suddenly：
1) by 75g epoxy modified silicone resins, 5g dispersants (EFKA4310), 5g defoamers (Deform 5300), 3g
Levelling agent (Tego 825), 10g solvents (dimethylbenzene) are mixed to join in beaker, then stirred, speed of agitator 800r/min,
Pre-dispersed 30min is carried out, obtains pre-dispersed mixture；
2) 15g temperature-sensitives powder and pre-dispersed mixture are put into grinder in the lump, are ground after adding bead, section turns
Speed grinds 40min, continuously adds 15g temperature-sensitive powder into grinder, be ground to fineness and reach less than 40 μm to 1200r/min, mistake
Component A is obtained after filter；
3) 20g epoxy hardeners and 20g cyclohexanone are added in beaker, are uniformly mixing to obtain B component；
4) component A and B component are prepared in 4 ︰ 1 ratio, product is made after stirring.
Embodiment 5：
The present invention provides a kind of special reversible thermocoating of high-temperature-resisting transformer pile crown and preparation method thereof, including following step
Suddenly：
1) by 40g epoxy modified silicone resins, 1g dispersants (EFKA 4310), 1g defoamers (Tego Airex
932), 1g levelling agents (BYK-333), 1g solvent (dimethylbenzene) are mixed to join in beaker, are then stirred, and speed of agitator is
900r/min, pre-dispersed 30min is carried out, obtain pre-dispersed mixture；
2) 5g temperature-sensitives powder and pre-dispersed mixture are put into grinder in the lump, are ground after adding bead, section turns
Speed grinds 40min, continuously adds 5g temperature-sensitive powder into grinder, be ground to fineness and reach less than 40 μm to 1200r/min, mistake
Component A is obtained after filter；
3) 10g epoxy hardeners and 10g cyclohexanone are added in beaker, are uniformly mixing to obtain B component；
4) component A and B component are prepared in 5 ︰ 1 ratio, product is made after stirring.
Above example is only to illustrative and not limiting technical scheme, although above-described embodiment enters to the present invention
Detailed description is gone, the person skilled of this area should be understood：The present invention can be modified or replaced on an equal basis, but
Any modification and local replacement for not departing from spirit and scope of the invention all should be covered in scope of the presently claimed invention.
Claims (3)
1. a kind of special reversible thermocoating of high-temperature-resisting transformer pile crown, it is characterised in that including following component and its mass parts
Number：Component A：40 ~ 75 parts of epoxy modified silicone resin, 10 ~ 30 parts of temperature-sensitive powder, 1 ~ 5 part of dispersant, 1 ~ 5 part of levelling agent, defoaming
1 ~ 3 part of agent, 1 ~ 10 part of solvent；B component：50 parts of epoxy hardener, 50 parts of cyclohexanone；The mass ratio of the component A and B component
For 4 ~ 5 ︰ 1；
The temperature change section of temperature-sensitive powder described above is 50 DEG C ~ 70 DEG C；
Solvent described above is dimethylbenzene；
The preparation method of the special reversible thermocoating of one of the above high-temperature-resisting transformer pile crown is as follows：
1）Stirred after epoxy modified silicone resin, dispersant, levelling agent, defoamer, solvent are mixed, progress is pre-dispersed, obtains
Obtain pre-dispersed mixture；
2）Temperature-sensitive powder and pre-dispersed mixture are put into grinder in the lump, is ground after adding bead, is ground to fineness
Reach less than 40 μm, component A is obtained after filtering；
3）Epoxy hardener and cyclohexanone are prepared according to the ︰ 1 of mass ratio 1 and are added in container, is uniformly mixing to obtain B component；
4）Component A is prepared in proportion with B component, product is made after stirring.
2. the preparation method of the special reversible thermocoating of high-temperature-resisting transformer pile crown according to claim 1, its feature exist
In the step 1）The rotating speed of middle stirring is less than or equal to 1500r/min, and the pre-dispersed time is 30min.
3. the preparation method of the special reversible thermocoating of high-temperature-resisting transformer pile crown according to claim 1, its feature exist
In the step 2）In temperature-sensitive powder point added in 1h in grinder for 2 times.
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| CN103911069A (en) * | 2012-12-31 | 2014-07-09 | 南车戚墅堰机车车辆工艺研究所有限公司 | Irreversible temperature indicating paint for brake discs and preparation method thereof |
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| CN103160200A (en) * | 2013-04-02 | 2013-06-19 | 河南省电力公司周口供电公司 | Infrared-monitored coating material and preparation method thereof |
| CN103436094B (en) * | 2013-08-27 | 2015-10-28 | 华南理工大学 | High temperature resistant touch screen ink of a kind of thermoset and preparation method thereof |
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