CN104292856A - Insulating wax composition, preparation method thereof and transformer - Google Patents
Insulating wax composition, preparation method thereof and transformer Download PDFInfo
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- CN104292856A CN104292856A CN201410504663.7A CN201410504663A CN104292856A CN 104292856 A CN104292856 A CN 104292856A CN 201410504663 A CN201410504663 A CN 201410504663A CN 104292856 A CN104292856 A CN 104292856A
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Abstract
The invention relates to an insulating wax composition, a preparation method thereof and a transformer. The composition contains the following components in parts by weight: 100 parts of Chinese insect wax, 30-45 parts of palm wax, 20-35 parts of montan wax, 7-13 parts of thickening agent, 8-15 parts of vaseline, 12-16 parts of mica nanopowder and 5-7 parts of polyacrylic acid, wherein the thickening agent is one or more selected from methylcellulose, hydroxypropyl methylcellulose and hydroxyethyl cellulose. The composition has a high melting point, excellent insulativity and corrosion resistance, meanwhile, the preparation method of the insulating wax composition is simple in step, and raw materials are available.
Description
Technical field
The present invention relates to insulating material, particularly, relate to a kind of insulating wax composition and method of making the same and transformer.
Background technology
In transformer production, often need to use insulation encapsulated wax to carry out insulation impregnating embedding to improve the insulating property of transformer to transformer.In prior art or simple commodity in use paraffin or Microcrystalline Wax, although low price, there is the defect such as high-temperature behavior and toughness plasticity difference, easily run off at the working temperature simultaneously, easily break under external force.Use oils to carry out embedding to transformer and then easily seepage occurs.Or, although the resistance to elevated temperatures that transformer can be made to have had, there is toughness plasticity difference, production cost cross high defect in use resinous material.
Summary of the invention
The object of this invention is to provide a kind of insulating wax composition and method of making the same and the transformer comprising this insulating wax composition, this insulating wax composition has high melt drop temperature, excellent insulativity and corrosion-resistant, the method steps simultaneously preparing this insulating wax composition is simple, and raw material is easy to get.
To achieve these goals, the invention provides a kind of insulating wax composition, described composition comprises river wax, palm wax, montanin wax, thickening material, Vaseline, nano mica powder and polyacrylic acid; Relative to the river wax of 100 weight parts, the content of described palm wax is 30-45 weight part, the content of described montanin wax is 20-35 weight part, the content of described thickening material is 7-13 weight part, the content of described Vaseline is 8-15 weight part, the content of described nano mica powder is 12-16 weight part, and described polyacrylic content is 5-7 weight part;
Wherein, described thickening material is selected from one or more in methylcellulose gum, Vltra tears and Natvosol.
Present invention provides a kind of preparation method of insulating wax composition, described preparation method comprises: by river wax, palm wax, montanin wax, thickening material, Vaseline, nano mica powder and polyacrylic acid mixing also heated and stirred;
Wherein, relative to the river wax of 100 weight parts, the consumption of described palm wax is 30-45 weight part, the consumption of described montanin wax is 20-35 weight part, the consumption of described thickening material is 7-13 weight part, the consumption of described Vaseline is 8-15 weight part, and the consumption of described nano mica powder is 12-16 weight part, and described polyacrylic consumption is 5-7 weight part; Described thickening material be selected from methylcellulose gum, Vltra tears and Natvosol one or more.
Present invention also offers a kind of transformer, the insulating wax composition that described transformer comprises above-mentioned insulating wax composition or prepares according to above-mentioned method, described insulating wax composition is filled between the gap of the casing of described transformer.
Pass through technique scheme, insulating wax composition provided by the invention comprises river wax, palm wax, montanin wax, thickening material, Vaseline, nano mica powder and polyacrylic acid, said composition is made to have high melt drop temperature, excellent insulativity and corrosion-resistant by the synergy of each component, the method steps simultaneously preparing this insulating wax composition is simple, and raw material is easy to get.And then, transformer can be made to have high temperature resistant and etch-proof performance between the gap that this insulating wax composition is filled in the casing of transformer.
Other features and advantages of the present invention are described in detail in embodiment part subsequently.
Embodiment
Below the specific embodiment of the present invention is described in detail.Should be understood that, embodiment described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
The invention provides a kind of insulating wax composition, described composition comprises river wax, palm wax, montanin wax, thickening material, Vaseline, nano mica powder and polyacrylic acid; Relative to the river wax of 100 weight parts, the content of described palm wax is 30-45 weight part, the content of described montanin wax is 20-35 weight part, the content of described thickening material is 7-13 weight part, the content of described Vaseline is 8-15 weight part, the content of described nano mica powder is 12-16 weight part, and described polyacrylic content is 5-7 weight part;
Wherein, described thickening material is selected from one or more in methylcellulose gum, Vltra tears and Natvosol.
In the present invention, the particle diameter of described nano mica powder can be selected in wide scope, if reach Nano grade just can, but in order to make the insulating wax composition obtained have more excellent melt drop temperature, insulativity and erosion resistance, preferably, the particle diameter of described nano mica powder is 5-10nm.
In the present invention, described polyacrylic molecular weight can be selected in wide scope, but in order to make the insulating wax composition obtained have more excellent melt drop temperature, insulativity and erosion resistance, preferably, described polyacrylic weight-average molecular weight is 2000-5000.
In the present invention, the fusing point of described river wax can be selected in wide scope, but in order to make the insulating wax composition obtained have more excellent melt drop temperature, insulativity and erosion resistance, preferably, the fusing point of described river wax is 80-90 DEG C.
In the present invention, the dropping point of described Vaseline can be selected in wide scope, but in order to make the insulating wax composition obtained have more excellent melt drop temperature, insulativity and erosion resistance, preferably, the dropping point of described Vaseline is 45-75 DEG C.
Present invention provides a kind of preparation method of insulating wax composition, described preparation method comprises: by river wax, palm wax, montanin wax, thickening material, Vaseline, nano mica powder and polyacrylic acid mixing also heated and stirred;
Wherein, relative to the river wax of 100 weight parts, the consumption of described palm wax is 30-45 weight part, the consumption of described montanin wax is 20-35 weight part, the consumption of described thickening material is 7-13 weight part, the consumption of described Vaseline is 8-15 weight part, and the consumption of described nano mica powder is 12-16 weight part, and described polyacrylic consumption is 5-7 weight part; Described thickening material be selected from methylcellulose gum, Vltra tears and Natvosol one or more.
In the present invention, the particle diameter of described nano mica powder can be selected in wide scope, if reach Nano grade just can, but in order to make the insulating wax composition obtained have more excellent melt drop temperature, insulativity and erosion resistance, preferably, the particle diameter of described nano mica powder is 5-10nm.
In the present invention, described polyacrylic molecular weight can be selected in wide scope, but in order to make the insulating wax composition obtained have more excellent melt drop temperature, insulativity and erosion resistance, preferably, described polyacrylic weight-average molecular weight is 2000-5000.
In the present invention, the fusing point of described river wax can be selected in wide scope, but in order to make the insulating wax composition obtained have more excellent melt drop temperature, insulativity and erosion resistance, preferably, the fusing point of described river wax is 80-90 DEG C.
In the present invention, the dropping point of described Vaseline can be selected in wide scope, but in order to make the insulating wax composition obtained have more excellent melt drop temperature, insulativity and erosion resistance, preferably, the dropping point of described Vaseline is 45-75 DEG C.
In the present invention, the temperature and time of described heated and stirred can be selected in wide scope, but in order to make the insulating wax composition obtained, there is more excellent melt drop temperature, insulativity and erosion resistance, preferably, the temperature of described heated and stirred is 115-130 DEG C, and the time of described heated and stirred is 2-3h.
In the present invention, the temperature and time of described mixing can be selected in wide scope, but in order to make the insulating wax composition obtained have more excellent melt drop temperature, insulativity and erosion resistance, preferably, the temperature of described mixing is 20-30 DEG C, and the time of described mixing is 15-25min.
Present invention also offers a kind of transformer, the insulating wax composition that described transformer comprises above-mentioned insulating wax composition or prepares according to above-mentioned method, described insulating wax composition is filled between the gap of the casing of described transformer.
Below will be described the present invention by embodiment.In following examples, melt drop temperature parameter is recorded by the method for GB/T8026-1987, kinematic viscosity parameter is recorded by the method for GB/T4985-1988, kinematic viscosity parameter is recorded by the method for GB/T4985-1988, volume specific resistance parameter is recorded by the method for GB/T5654-2007, and Corrosion monitoring result is recorded by the method for GB/T5654-2007.
River wax, palm wax and montanin wax are the commercially available product of Guangzhou De Long Chemical trade company limited, methylcellulose gum and Vltra tears are the commercially available product of Renqiu City Yan Xing Chemical Co., Ltd., Vaseline is the commercially available product of Shanghai company of Qi Ju Chemical Co., Ltd., nano mica powder is the commercially available product of Lingshou County Tuo Lin mineral products processing factory, and polyacrylic acid is the commercially available product of Changzhou Run Yang Chemical Co., Ltd..
Embodiment 1
By river wax 100g, palm wax 35g, montanin wax 25g, methylcellulose gum 10g, Vaseline 11g, nano mica powder 14g and polyacrylic acid 6g mixing 20min at 25 DEG C, then at 120 DEG C, heated and stirred 2.5h obtains insulating wax composition A1.Wherein, the particle diameter of nano mica powder is 8nm, and polyacrylic weight-average molecular weight is 2500, and the fusing point of river wax is 85 DEG C, and the dropping point of Vaseline is 55 DEG C.
The melt drop temperature of this insulating wax composition, kinematic viscosity, volume specific resistance and Corrosion monitoring the results are shown in Table 1.
Embodiment 2
By river wax 100g, palm wax 30g, montanin wax 20g, methylcellulose gum 7g, Vaseline 8g, nano mica powder 12g and polyacrylic acid 5g mixing 15min at 20 DEG C, then at 115 DEG C, heated and stirred 2h obtains insulating wax composition A2.Wherein, the particle diameter of nano mica powder is 5nm, and polyacrylic weight-average molecular weight is 2000, and the fusing point of river wax is 80 DEG C, and the dropping point of Vaseline is 45 DEG C.
The melt drop temperature of this insulating wax composition, kinematic viscosity, volume specific resistance and Corrosion monitoring the results are shown in Table 1.
Embodiment 3
By river wax 100g, palm wax 45g, montanin wax 35g, methylcellulose gum 13g, Vaseline 15g, nano mica powder 16g and polyacrylic acid 7g mixing 25min at 30 DEG C, then at 130 DEG C, heated and stirred 3h obtains insulating wax composition A3.Wherein, the particle diameter of nano mica powder is 10nm, and polyacrylic weight-average molecular weight is 5000, and the fusing point of river wax is 90 DEG C, and the dropping point of Vaseline is 75 DEG C.
The melt drop temperature of this insulating wax composition, kinematic viscosity, volume specific resistance and Corrosion monitoring the results are shown in Table 1.
Embodiment 4
Carrying out according to the method for embodiment 1, obtaining insulating wax composition A4 unlike methylcellulose gum being changed into Vltra tears.
The melt drop temperature of this insulating wax composition, kinematic viscosity, volume specific resistance and Corrosion monitoring the results are shown in Table 1.
Comparative example 1
Insulating wax composition B1 is obtained according to the method for embodiment 1, unlike, not containing river wax.
The melt drop temperature of this insulating wax composition, kinematic viscosity, volume specific resistance and Corrosion monitoring the results are shown in Table 1.
Comparative example 2
Insulating wax composition B2 is obtained according to the method for embodiment 1, unlike, not containing palm wax.
The melt drop temperature of this insulating wax composition, kinematic viscosity, volume specific resistance and Corrosion monitoring the results are shown in Table 1.
Comparative example 3
Insulating wax composition B3 is obtained according to the method for embodiment 1, unlike, not containing montanin wax.
The melt drop temperature of this insulating wax composition, kinematic viscosity, volume specific resistance and Corrosion monitoring the results are shown in Table 1.
Comparative example 4
Insulating wax composition B4 is obtained according to the method for embodiment 1, unlike, not containing methylcellulose gum.
The melt drop temperature of this insulating wax composition, kinematic viscosity, volume specific resistance and Corrosion monitoring the results are shown in Table 1.
Comparative example 5
Insulating wax composition B5 is obtained according to the method for embodiment 1, unlike, not containing Vaseline.
The melt drop temperature of this insulating wax composition, kinematic viscosity, volume specific resistance and Corrosion monitoring the results are shown in Table 1.
Comparative example 6
Insulating wax composition B6 is obtained according to the method for embodiment 1, unlike, not containing nano mica powder.
The melt drop temperature of this insulating wax composition, kinematic viscosity, volume specific resistance and Corrosion monitoring the results are shown in Table 1.
Comparative example 7
Insulating wax composition B7 is obtained according to the method for embodiment 1, unlike, not containing polyacrylic acid.
The melt drop temperature of this insulating wax composition, kinematic viscosity, volume specific resistance and Corrosion monitoring the results are shown in Table 1.
Comparative example 8
Insulating wax composition B8 is obtained according to the method for embodiment 1, unlike, the consumption of palm wax is 55g.
The melt drop temperature of this insulating wax composition, kinematic viscosity, volume specific resistance and Corrosion monitoring the results are shown in Table 1.
Comparative example 9
Insulating wax composition B9 is obtained according to the method for embodiment 1, unlike, the consumption of montanin wax is 45g.
The melt drop temperature of this insulating wax composition, kinematic viscosity, volume specific resistance and Corrosion monitoring the results are shown in Table 1.
Comparative example 10
Insulating wax composition B10 is obtained according to the method for embodiment 1, unlike, the consumption of methylcellulose gum is 15g.
The melt drop temperature of this insulating wax composition, kinematic viscosity, volume specific resistance and Corrosion monitoring the results are shown in Table 1.
Comparative example 11
Insulating wax composition B11 is obtained according to the method for embodiment 1, unlike, the consumption of Vaseline is 20g.
The melt drop temperature of this insulating wax composition, kinematic viscosity, volume specific resistance and Corrosion monitoring the results are shown in Table 1.
Comparative example 12
Insulating wax combination B 12 is obtained according to the method for embodiment 1, unlike, the consumption of nano mica powder is 20g.
The melt drop temperature of this insulating wax composition, kinematic viscosity, volume specific resistance and Corrosion monitoring the results are shown in Table 1.
Comparative example 13
Insulating wax composition B13 is obtained according to the method for embodiment 1, unlike, polyacrylic consumption is 15g.
The melt drop temperature of this insulating wax composition, kinematic viscosity, volume specific resistance and Corrosion monitoring the results are shown in Table 1.
Table 1
By above-described embodiment can comparative example known, insulating wax composition provided by the invention has higher melt drop temperature, describes said composition and has resistant to elevated temperatures performance.Simultaneously said composition also has excellent volume specific resistance and makes this said composition have excellent insulativity.In addition, said composition is to metal non-corrosiveness, and kinematic viscosity is suitable for being convenient to be filled in the gap of transformer.
More than describe the preferred embodiment of the present invention in detail; but the present invention is not limited to the detail in above-mentioned embodiment, within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition, each concrete technical characteristic described in above-mentioned embodiment, in reconcilable situation, can be combined by any suitable mode, in order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible array mode.
In addition, also can carry out arbitrary combination between various different embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (10)
1. an insulating wax composition, is characterized in that, described composition comprises river wax, palm wax, montanin wax, thickening material, Vaseline, nano mica powder and polyacrylic acid; Relative to the river wax of 100 weight parts, the content of described palm wax is 30-45 weight part, the content of described montanin wax is 20-35 weight part, the content of described thickening material is 7-13 weight part, the content of described Vaseline is 8-15 weight part, the content of described nano mica powder is 12-16 weight part, and described polyacrylic content is 5-7 weight part;
Wherein, described thickening material is selected from one or more in methylcellulose gum, Vltra tears and Natvosol.
2. insulating wax composition according to claim 1, wherein, the particle diameter of described nano mica powder is 5-10nm.
3. insulating wax composition according to claim 1 and 2, wherein, described polyacrylic weight-average molecular weight is 2000-5000.
4. insulating wax composition according to claim 1 and 2, wherein, the fusing point of described river wax is 80-90 DEG C;
Preferably, the dropping point of described Vaseline is 45-75 DEG C.
5. a preparation method for insulating wax composition, is characterized in that, described preparation method comprises: by river wax, palm wax, montanin wax, thickening material, Vaseline, nano mica powder and polyacrylic acid mixing also heated and stirred;
Wherein, relative to the river wax of 100 weight parts, the consumption of described palm wax is 30-45 weight part, the consumption of described montanin wax is 20-35 weight part, the consumption of described thickening material is 7-13 weight part, the consumption of described Vaseline is 8-15 weight part, and the consumption of described nano mica powder is 12-16 weight part, and described polyacrylic consumption is 5-7 weight part; Described thickening material be selected from methylcellulose gum, Vltra tears and Natvosol one or more.
6. the preparation method of insulating wax composition according to claim 5, wherein, the particle diameter of described nano mica powder is 5-10nm;
Preferably, described polyacrylic weight-average molecular weight is 2000-5000.
7. the preparation method of insulating wax composition according to claim 6, wherein, the fusing point of described river wax is 80-90 DEG C;
Preferably, the dropping point of described Vaseline is 45-75 DEG C.
8. the preparation method of the insulating wax composition according to any one in claim 5-7, wherein, the temperature of described heated and stirred is 115-130 DEG C, and the time of described heated and stirred is 2-3h.
9. the preparation method of the insulating wax composition according to any one in claim 5-7, wherein, the temperature of described mixing is 20-30 DEG C, and the time of described mixing is 15-25min.
10. a transformer, it is characterized in that, described transformer comprises insulating wax composition prepared by the insulating wax composition described in any one in claim 1-4 or the method according to any one in claim 5-9, and described insulating wax composition is filled between the gap of the casing of described transformer.
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Application publication date: 20150121 |