CN104292798B - Transformer sealing gasket and preparation method thereof - Google Patents
Transformer sealing gasket and preparation method thereof Download PDFInfo
- Publication number
- CN104292798B CN104292798B CN201410498633.XA CN201410498633A CN104292798B CN 104292798 B CN104292798 B CN 104292798B CN 201410498633 A CN201410498633 A CN 201410498633A CN 104292798 B CN104292798 B CN 104292798B
- Authority
- CN
- China
- Prior art keywords
- sealing gasket
- preparation
- transformer sealing
- transformer
- consumption
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 79
- 238000002360 preparation method Methods 0.000 title claims abstract description 25
- 239000000203 mixture Substances 0.000 claims abstract description 32
- 229910052902 vermiculite Inorganic materials 0.000 claims abstract description 23
- 235000019354 vermiculite Nutrition 0.000 claims abstract description 23
- 239000010455 vermiculite Substances 0.000 claims abstract description 23
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims abstract description 22
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 19
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229920001971 elastomer Polymers 0.000 claims abstract description 18
- 239000005060 rubber Substances 0.000 claims abstract description 18
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 18
- XENVCRGQTABGKY-ZHACJKMWSA-N chlorohydrin Chemical compound CC#CC#CC#CC#C\C=C\C(Cl)CO XENVCRGQTABGKY-ZHACJKMWSA-N 0.000 claims abstract description 16
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 13
- 239000006229 carbon black Substances 0.000 claims abstract description 11
- 235000005074 zinc chloride Nutrition 0.000 claims abstract description 11
- 239000011592 zinc chloride Substances 0.000 claims abstract description 11
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims abstract description 11
- XTJFFFGAUHQWII-UHFFFAOYSA-N Dibutyl adipate Chemical compound CCCCOC(=O)CCCCC(=O)OCCCC XTJFFFGAUHQWII-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 7
- 229940100539 dibutyl adipate Drugs 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 27
- AUZONCFQVSMFAP-UHFFFAOYSA-N disulfiram Chemical compound CCN(CC)C(=S)SSC(=S)N(CC)CC AUZONCFQVSMFAP-UHFFFAOYSA-N 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 12
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 6
- -1 sulfenic acids amine Chemical class 0.000 claims description 5
- KEQFTVQCIQJIQW-UHFFFAOYSA-N N-Phenyl-2-naphthylamine Chemical compound C=1C=C2C=CC=CC2=CC=1NC1=CC=CC=C1 KEQFTVQCIQJIQW-UHFFFAOYSA-N 0.000 claims description 4
- KUAZQDVKQLNFPE-UHFFFAOYSA-N thiram Chemical compound CN(C)C(=S)SSC(=S)N(C)C KUAZQDVKQLNFPE-UHFFFAOYSA-N 0.000 claims description 3
- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical compound C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 claims description 2
- YHMYGUUIMTVXNW-UHFFFAOYSA-N 1,3-dihydrobenzimidazole-2-thione Chemical compound C1=CC=C2NC(S)=NC2=C1 YHMYGUUIMTVXNW-UHFFFAOYSA-N 0.000 claims description 2
- WITDFSFZHZYQHB-UHFFFAOYSA-N dibenzylcarbamothioylsulfanyl n,n-dibenzylcarbamodithioate Chemical compound C=1C=CC=CC=1CN(CC=1C=CC=CC=1)C(=S)SSC(=S)N(CC=1C=CC=CC=1)CC1=CC=CC=C1 WITDFSFZHZYQHB-UHFFFAOYSA-N 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- STSDHUBQQWBRBH-UHFFFAOYSA-N n-cyclohexyl-1,3-benzothiazole-2-sulfonamide Chemical compound N=1C2=CC=CC=C2SC=1S(=O)(=O)NC1CCCCC1 STSDHUBQQWBRBH-UHFFFAOYSA-N 0.000 claims description 2
- 229960002447 thiram Drugs 0.000 claims description 2
- 239000003921 oil Substances 0.000 abstract description 27
- 230000032683 aging Effects 0.000 abstract description 8
- 230000006835 compression Effects 0.000 description 25
- 238000007906 compression Methods 0.000 description 25
- 241000208340 Araliaceae Species 0.000 description 18
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 18
- 235000003140 Panax quinquefolius Nutrition 0.000 description 18
- 235000008434 ginseng Nutrition 0.000 description 18
- 230000000052 comparative effect Effects 0.000 description 13
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 6
- 230000003712 anti-aging effect Effects 0.000 description 6
- 235000011037 adipic acid Nutrition 0.000 description 3
- 239000001361 adipic acid Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- DCKVNWZUADLDEH-UHFFFAOYSA-N sec-butyl acetate Chemical compound CCC(C)OC(C)=O DCKVNWZUADLDEH-UHFFFAOYSA-N 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- HVBSAKJJOYLTQU-UHFFFAOYSA-N 4-aminobenzenesulfonic acid Chemical compound NC1=CC=C(S(O)(=O)=O)C=C1 HVBSAKJJOYLTQU-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- NLERATPWIMEWSN-UHFFFAOYSA-N CC1(NC2=CC=CC=C2C(=C1)C)C.N1=CC=CC2=CC=CC=C12 Chemical compound CC1(NC2=CC=CC=C2C(=C1)C)C.N1=CC=CC2=CC=CC=C12 NLERATPWIMEWSN-UHFFFAOYSA-N 0.000 description 1
- 241000545744 Hirudinea Species 0.000 description 1
- HGWOWDFNMKCVLG-UHFFFAOYSA-N [O--].[O--].[Ti+4].[Ti+4] Chemical compound [O--].[O--].[Ti+4].[Ti+4] HGWOWDFNMKCVLG-UHFFFAOYSA-N 0.000 description 1
- 230000003679 aging effect Effects 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 229950000244 sulfanilic acid Drugs 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
Landscapes
- Sealing Material Composition (AREA)
Abstract
The invention discloses a kind of transformer sealing gasket and preparation method thereof, preparation method includes: a, at 125 135 DEG C, obtains the first mixture by mixing to chlorohydrin rubber, carbon black, silicon rubber, dibutyl adipate and expanded vermiculite；B, at 90 100 DEG C, zinc chloride, zinc stearate, nano titanium oxide, accelerator and age resistor are added in the first mixture and carry out mixing preparing the second mixture；C, at 170 190 DEG C, prepare transformer sealing gasket by mixing to the second mixture and vulcanizing agent carrying out vulcanizing treatment；This transformer sealing gasket has mechanical performance and the ageing resistace of excellence, is fully able to be suitable for oil-filled transformer.
Description
Technical field
The present invention relates to transformer parts, in particular it relates to a kind of transformer sealing gasket and preparation side thereof
Method.
Background technology
Sealing gasket, is a strength member of oil-filled transformer, plays sealing, prevent transformer leakage of oil
Effect.Existing rubber gasket is unstable or the most aging due to its mechanical property, causes transformer
Leakage of oil, has had a strong impact on the service life of transformer, causes huge economy to power system and user
Loss.
Summary of the invention
It is an object of the invention to provide a kind of transformer sealing gasket and preparation method thereof, prepared by the method
Transformer sealing gasket has hot strength, tearing percentage elongation, tearing strength and the ageing resistace of excellence,
The method step is simple simultaneously, and raw material is easy to get.
To achieve these goals, the present invention provides the preparation method of a kind of transformer sealing gasket, described system
Preparation Method includes:
A, at 125-135 DEG C, by chlorohydrin rubber, carbon black, silicon rubber, dibutyl adipate and expansion
Vermiculite is mixing obtains the first mixture；
B, at 90-100 DEG C, by zinc chloride, zinc stearate, nano titanium oxide, accelerator and anti-
Old agent adds to the first mixture and carries out mixing prepared second mixture；
C, at 170-190 DEG C, prepare transformation by mixing to the second mixture and vulcanizing agent carrying out vulcanizing treatment
Device sealing gasket；
Wherein, relative to the chlorohydrin rubber of 100 weight portions, the consumption of described carbon black is 7-11 weight portion,
The consumption of described silicon rubber is 40-60 weight portion, and the consumption of described dibutyl adipate is 20-25 weight
Part, the consumption of described expanded vermiculite is 8-12 weight portion, and the consumption of described zinc chloride is 3-4 weight portion,
The consumption of described zinc stearate is 15-25 weight portion, and the consumption of described nano titanium oxide is 0.5-1.5 weight
Amount part, the consumption of described accelerator is 1.2-1.4 weight portion, and the consumption of described age resistor is 0.5-1 weight
Part, the consumption of described vulcanizing agent is 3-5 weight portion.
Present invention also offers a kind of transformer sealing gasket, described transformer sealing gasket is by above-mentioned method
It is prepared from.
By technique scheme, the present invention is first by chlorohydrin rubber, carbon black, silicon rubber, adipic acid two
Butyl ester and mixing first mixture that obtains of expanded vermiculite, then zinc chloride, zinc stearate, nanometer titanium dioxide
Titanium, accelerator and age resistor add to the first mixture and carry out mixing second mixture for preparing, finally
Preparing transformer sealing gasket by mixing to the second mixture and vulcanizing agent carrying out vulcanizing treatment, such three steps are mixed
Refining legal system obtains transformer sealing gasket and has the hot strength of excellence, tearing percentage elongation, tearing strength and anti-ageing
Changing performance, the method step is simple simultaneously, and raw material is easy to get.
Other features and advantages of the present invention will be described in detail in detailed description of the invention part subsequently.
Detailed description of the invention
Hereinafter the detailed description of the invention of the present invention is described in detail.It should be appreciated that this place is retouched
The detailed description of the invention stated is merely to illustrate and explains the present invention, is not limited to the present invention.
The invention provides the preparation method of a kind of transformer sealing gasket, described preparation method includes:
A, at 125-135 DEG C, by chlorohydrin rubber, carbon black, silicon rubber, dibutyl adipate and expansion
Vermiculite is mixing obtains the first mixture；
B, at 90-100 DEG C, by zinc chloride, zinc stearate, nano titanium oxide, accelerator and anti-
Old agent adds to the first mixture and carries out mixing prepared second mixture；
C, at 170-190 DEG C, prepare transformation by mixing to the second mixture and vulcanizing agent carrying out vulcanizing treatment
Device sealing gasket；
Wherein, relative to the chlorohydrin rubber of 100 weight portions, the consumption of described carbon black is 7-11 weight portion,
The consumption of described silicon rubber is 40-60 weight portion, and the consumption of described dibutyl adipate is 20-25 weight
Part, the consumption of described expanded vermiculite is 8-12 weight portion, and the consumption of described zinc chloride is 3-4 weight portion,
The consumption of described zinc stearate is 15-25 weight portion, and the consumption of described nano titanium oxide is 0.5-1.5 weight
Amount part, the consumption of described accelerator is 1.2-1.4 weight portion, and the consumption of described age resistor is 0.5-1 weight
Part, the consumption of described vulcanizing agent is 3-5 weight portion.
In the present invention, the molecular weight of described chlorohydrin rubber can select in wide scope, but in order to make
The transformer sealing gasket that must prepare has more excellent hot strength, tearing percentage elongation, tearing strength and resists
Ageing properties, it is preferable that the weight average molecular weight of described chlorohydrin rubber is 50,000-8 ten thousand.
In the present invention, the molecular weight of described silicon rubber can select in wide scope, but so that
The transformer sealing gasket prepared has more excellent hot strength, tearing percentage elongation, tearing strength and anti-ageing
Change performance, it is preferable that the weight average molecular weight of described silicon rubber is 20,000-5 ten thousand.
In the present invention, the particle diameter of described nano titanium oxide can select in wide scope, but in order to
Make the transformer sealing gasket prepared have more excellent hot strength, tearing percentage elongation, tearing strength and
Ageing resistace, it is preferable that the particle diameter of described nano titanium oxide is 5-10nm.
In the present invention, the particle diameter of described expanded vermiculite can select in wide scope, but so that
The transformer sealing gasket prepared has more excellent hot strength, tearing percentage elongation, tearing strength and anti-ageing
Change performance, it is preferable that the particle diameter of described expanded vermiculite is 0.5-1.5mm.
In the present invention, the kind of described accelerator can select in wide scope, but so that system
Transformer sealing gasket there is more excellent hot strength, tearing percentage elongation, tearing strength and anti-aging
Performance, it is preferable that described accelerator is selected from the N-tert-butyl group pair-2-[4-morpholinodithio sulfenic acids amine, N-hexamethylene
One or more in base-2-benzothiazole sulfonamide and 2-benzothiazolyl mercaptan.
In the present invention, the kind of described age resistor can select in wide scope, but so that system
Transformer sealing gasket there is more excellent hot strength, tearing percentage elongation, tearing strength and anti-aging
Performance, it is preferable that described age resistor is selected from 2,2,4-trimethyl-1,2-dihyaroquinoline, N-phenyl-2-naphthalene
One or more in amine and 2-mercaptobenzimidazole.
In the present invention, the kind of described vulcanizing agent can select in wide scope, but so that system
Transformer sealing gasket there is more excellent hot strength, tearing percentage elongation, tearing strength and anti-aging
Performance, it is preferable that described vulcanizing agent is selected from tetraethylthiuram disulfide, tetramethylthiuram disulfide
With one or more in tetrabenzyl thiuram-disulfide.
In the present invention, in order to improve the prepared hot strength of transformer sealing gasket further, tearing is stretched
Long rate, tearing strength and ageing resistace, it is preferable that described preparation method also includes described expansion leech
Stone is heat-treated at 200-250 DEG C.In order to improve the effect of heat treatment, it is highly preferred that described heat
The time processed is 2-3h.
In the present invention, the mixing time in each step can select in wide scope, but in order to enter one
Step improves the hot strength of transformer sealing gasket, tearing percentage elongation, tearing strength and the ageing resistance prepared
Can, it is preferable that in step a, the described mixing time is 1-2h；It is highly preferred that in stepb,
The described mixing time is 8-15h.
Present invention also offers a kind of transformer sealing gasket, described transformer sealing gasket is by above-mentioned method
It is prepared from.
Hereinafter will be described the present invention by embodiment.In following example, hot strength and
Tearing percentage elongation is recorded by the method for GB/T528-1998, and tearing strength passes through GB/T529-1999
Method record, compression set parameter is recorded by the method for GB/T7759-1996,25# become
In depressor oil, volume change is recorded by the method for GB/T1690-1992.
The reagent and the medicine that use in the present invention are commercially available product known in the art.
Embodiment 1
A, at 130 DEG C, by chlorohydrin rubber 100kg, carbon black 9kg, silicon rubber 50kg, adipic acid two
Butyl ester 22kg and the mixing 1.5h of expanded vermiculite 10kg obtains the first mixture；Wherein, expanded vermiculite uses
Before be heat-treated after 2.5h at 220 DEG C and the particle diameter of expanded vermiculite that grinding makes is 1mm；Chlorohydrin rubber
Weight average molecular weight be 70,000；The weight average molecular weight of silicon rubber is 40,000.
B, at 95 DEG C, by zinc chloride 3.5kg, zinc stearate 20kg, nano titanium oxide 1kg,
The N-tert-butyl group pair-2-[4-morpholinodithio sulfenic acids amine 1.3kg and 2,2,4-trimethyl-1,2-dihyaroquinoline 0.8kg
Add to the first mixture and carry out mixing 10h and prepare the second mixture；Wherein, nano titanium oxide
Particle diameter be 8nm.
C, at 180 DEG C by the second mixture and the mixing 6h of tetraethylthiuram disulfide 4kg to carry out
Vulcanizing treatment prepares transformer sealing gasket A1.
The hot strength of this transformer sealing gasket, tearing percentage elongation, tearing strength, compression set ginseng
Count and volume change parameter is shown in Table 1 in 25# transformer oil.
Embodiment 2
A, at 125 DEG C, by chlorohydrin rubber 100kg, carbon black 7kg, silicon rubber 40kg, adipic acid two
Butyl ester 20kg and the mixing 1h of expanded vermiculite 8kg obtains the first mixture；Wherein, before expanded vermiculite uses
It is heat-treated after 2h at 200 DEG C and the particle diameter of expanded vermiculite that grinding makes is 0.5mm；Chlorohydrin rubber
Weight average molecular weight is 50,000；The weight average molecular weight of silicon rubber is 20,000.
B, at 90 DEG C, by zinc chloride 3kg, zinc stearate 15kg, nano titanium oxide 0.5kg,
The N-tert-butyl group pair-2-[4-morpholinodithio sulfenic acids amine 1.2kg and 2,2,4-trimethyl-1,2-dihyaroquinoline 0.5kg
Add to the first mixture and carry out mixing 8h and prepare the second mixture；Wherein, nano titanium oxide
Particle diameter be 5nm.
C, at 170 DEG C by the second mixture and the mixing 5h of tetraethylthiuram disulfide 3kg to carry out
Vulcanizing treatment prepares transformer sealing gasket A2.
The hot strength of this transformer sealing gasket, tearing percentage elongation, tearing strength, compression set ginseng
Count and volume change parameter is shown in Table 1 in 25# transformer oil.
Embodiment 3
A, at 135 DEG C, by chlorohydrin rubber 100kg, carbon black 11kg, silicon rubber 60kg, adipic acid
Dibutyl ester 25kg and the mixing 2h of expanded vermiculite 12kg obtains the first mixture；Wherein, expanded vermiculite makes
It is heat-treated after 3h at 250 DEG C and the particle diameter of expanded vermiculite that grinding makes is 1.5mm with front；Chloropharin rubber
The weight average molecular weight of glue is 80,000；The weight average molecular weight of silicon rubber is 50,000.
B, at 100 DEG C, by zinc chloride 4kg, zinc stearate 25kg, nano titanium oxide 1.5kg,
The N-tert-butyl group pair-2-[4-morpholinodithio sulfenic acids amine 1.4kg and 2,2,4-trimethyl-1,2-dihyaroquinoline 1kg
Add to the first mixture and carry out mixing 15h and prepare the second mixture；Wherein, nano titanium oxide
Particle diameter be 10nm.
C, at 190 DEG C by the second mixture and the mixing 7h of tetraethylthiuram disulfide 5kg to carry out
Vulcanizing treatment prepares transformer sealing gasket A3.
The hot strength of this transformer sealing gasket, tearing percentage elongation, tearing strength, compression set ginseng
Count and volume change parameter is shown in Table 1 in 25# transformer oil.
Embodiment 4
Carry out according to the method for embodiment 1, except that, by double for the N-tert-butyl group-2-[4-morpholinodithio
Sulfanilic acid changes N-cyclohexyl-2-benzothiazole sulfonamide into and prepares transformer sealing gasket A4.
The hot strength of this transformer sealing gasket, tearing percentage elongation, tearing strength, compression set ginseng
Count and volume change parameter is shown in Table 1 in 25# transformer oil.
Embodiment 5
Carry out according to the method for embodiment 1, except that, by 2,2,4-trimethyl-1,2-dihydro quinoline
Quinoline changes N-phenyl-2-naphthylamine into and prepares transformer sealing gasket A5.
The hot strength of this transformer sealing gasket, tearing percentage elongation, tearing strength, compression set ginseng
Count and volume change parameter is shown in Table 1 in 25# transformer oil.
Embodiment 6
Carry out according to the method for embodiment 1, except that, change tetraethylthiuram disulfide into two
Sulfuration tetra methylthiuram prepares transformer sealing gasket A6.
The hot strength of this transformer sealing gasket, tearing percentage elongation, tearing strength, compression set ginseng
Count and volume change parameter is shown in Table 1 in 25# transformer oil.
Comparative example 1
Carry out according to the method for embodiment 1, except that, the temperature in step a is 110 DEG C and prepares
Transformer sealing gasket B1.
The hot strength of this transformer sealing gasket, tearing percentage elongation, tearing strength, compression set ginseng
Count and volume change parameter is shown in Table 1 in 25# transformer oil.
Comparative example 2
Carry out according to the method for embodiment 1, except that, the temperature in step a is 140 DEG C and prepares
Transformer sealing gasket B2.
The hot strength of this transformer sealing gasket, tearing percentage elongation, tearing strength, compression set ginseng
Count and volume change parameter is shown in Table 1 in 25# transformer oil.
Comparative example 3
Carry out according to the method for embodiment 1, except that, the temperature in step b is 80 DEG C and prepares change
Depressor sealing gasket B3.
The hot strength of this transformer sealing gasket, tearing percentage elongation, tearing strength, compression set ginseng
Count and volume change parameter is shown in Table 1 in 25# transformer oil.
Comparative example 4
Carry out according to the method for embodiment 1, except that, the temperature in step b is 110 DEG C and prepares
Transformer sealing gasket B4.
The hot strength of this transformer sealing gasket, tearing percentage elongation, tearing strength, compression set ginseng
Count and volume change parameter is shown in Table 1 in 25# transformer oil.
Comparative example 5
Carry out according to the method for embodiment 1, except that, the temperature in step c is 150 DEG C and prepares
Transformer sealing gasket B5.
The hot strength of this transformer sealing gasket, tearing percentage elongation, tearing strength, compression set ginseng
Count and volume change parameter is shown in Table 1 in 25# transformer oil.
Comparative example 6
Carry out according to the method for embodiment 1, except that, the temperature in step c is 200 DEG C and prepares
Transformer sealing gasket B6.
The hot strength of this transformer sealing gasket, tearing percentage elongation, tearing strength, compression set ginseng
Count and volume change parameter is shown in Table 1 in 25# transformer oil.
Comparative example 7
Carry out according to the method for embodiment 1, except that, it is close that silicon rubber is that 30kg prepares transformer
Packing B7.
The hot strength of this transformer sealing gasket, tearing percentage elongation, tearing strength, compression set ginseng
Count and volume change parameter is shown in Table 1 in 25# transformer oil.
Comparative example 8
Carry out according to the method for embodiment 1, except that, it is close that silicon rubber is that 70kg prepares transformer
Packing B8.
The hot strength of this transformer sealing gasket, tearing percentage elongation, tearing strength, compression set ginseng
Count and volume change parameter is shown in Table 1 in 25# transformer oil.
Comparative example 9
Carry out according to the method for embodiment 1, except that, nano titanium oxide is that 0.2kg prepares change
Depressor sealing gasket B9.
The hot strength of this transformer sealing gasket, tearing percentage elongation, tearing strength, compression set ginseng
Count and volume change parameter is shown in Table 1 in 25# transformer oil.
Comparative example 10
Carry out according to the method for embodiment 1, except that, nano titanium oxide is that 2kg prepares transformation
Device sealing gasket B10.
The hot strength of this transformer sealing gasket, tearing percentage elongation, tearing strength, compression set ginseng
Count and volume change parameter is shown in Table 1 in 25# transformer oil.
Comparative example 11
Carry out according to the method for embodiment 1, except that, it is close that expanded vermiculite is that 5kg prepares transformer
Packing B11.
The hot strength of this transformer sealing gasket, tearing percentage elongation, tearing strength, compression set ginseng
Count and volume change parameter is shown in Table 1 in 25# transformer oil.
Comparative example 12
Carry out according to the method for embodiment 1, except that, expanded vermiculite is that 15kg prepares transformer
Sealing gasket B12.
The hot strength of this transformer sealing gasket, tearing percentage elongation, tearing strength, compression set ginseng
Count and volume change parameter is shown in Table 1 in 25# transformer oil.
Wherein, the testing conditions of hot-air compression is compression 25%, 125 DEG C and 24h, soaks 25#
The testing conditions of transformer oil compression is compression 25%, 125 DEG C and 168h, tolerates 25# transformer
The testing conditions of oil compression performance is 125 DEG C and 168h.Hot strength, tearing percentage elongation and tearing strength
Numerical value the biggest, compression set parameter and in 25# transformer oil volume change the least represent become
The mechanical performance of depressor sealing gasket and ageing resistace are the best.
From above-described embodiment and comparative example, the transformer sealing gasket that the present invention provides has the machine of excellence
Tool performance and ageing resistace, be fully able to be suitable for oil-filled transformer.
The preferred embodiment of the present invention described in detail above, but, the present invention is not limited to above-mentioned reality
Execute the detail in mode, in the technology concept of the present invention, can be to the technical side of the present invention
Case carries out multiple simple variant, and these simple variant belong to protection scope of the present invention.
It is further to note that each the concrete technology described in above-mentioned detailed description of the invention is special
Levy, in the case of reconcilable, can be combined by any suitable means, in order to avoid need not
The repetition wanted, various possible combinations are illustrated by the present invention the most separately.
Additionally, can also be combined between the various different embodiment of the present invention, as long as its
Without prejudice to the thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (13)
1. the preparation method of a transformer sealing gasket, it is characterised in that described preparation method includes:
A, at 125-135 DEG C, obtain the first mixture by mixing to chlorohydrin rubber, carbon black, silicon rubber, dibutyl adipate and expanded vermiculite；
B, at 90-100 DEG C, zinc chloride, zinc stearate, nano titanium oxide, accelerator and age resistor are added in the first mixture and carry out mixing preparing the second mixture；
C, at 170-190 DEG C, prepare transformer sealing gasket by mixing to the second mixture and vulcanizing agent carrying out vulcanizing treatment；
Wherein, chlorohydrin rubber relative to 100 weight portions, the consumption of described carbon black is 7-11 weight portion, the consumption of described silicon rubber is 40-60 weight portion, the consumption of described dibutyl adipate is 20-25 weight portion, the consumption of described expanded vermiculite is 8-12 weight portion, the consumption of described zinc chloride is 3-4 weight portion, the consumption of described zinc stearate is 15-25 weight portion, the consumption of described nano titanium oxide is 0.5-1.5 weight portion, the consumption of described accelerator is 1.2-1.4 weight portion, the consumption of described age resistor is 0.5-1 weight portion, the consumption of described vulcanizing agent is 3-5 weight portion.
The preparation method of transformer sealing gasket the most according to claim 1, wherein, the weight average molecular weight of described chlorohydrin rubber is 50,000-8 ten thousand.
The preparation method of transformer sealing gasket the most according to claim 2, wherein, the weight average molecular weight of described silicon rubber is 20,000-5 ten thousand.
The preparation method of transformer sealing gasket the most according to claim 1, wherein, the particle diameter of described nano titanium oxide is 5-10nm.
The preparation method of transformer sealing gasket the most according to claim 4, wherein, the particle diameter of described expanded vermiculite is 0.5-1.5mm.
6. according to the preparation method of the transformer sealing gasket described in any one in claim 1-3, wherein, one or more in the N-tert-butyl group pair-2-[4-morpholinodithio sulfenic acids amine, N-cyclohexyl-2-benzothiazole sulfonamide and 2-benzothiazolyl mercaptan of described accelerator.
7. according to the preparation method of the transformer sealing gasket described in any one in claim 1-3, wherein, described age resistor is selected from 2,2,4-trimethyl-1, one or more in 2-dihyaroquinoline, N-phenyl-2-naphthylamine and 2-mercaptobenzimidazole.
8. according to the preparation method of the transformer sealing gasket described in any one in claim 1-3, wherein, one or more in tetraethylthiuram disulfide, tetramethylthiuram disulfide and tetrabenzyl thiuram-disulfide of described vulcanizing agent.
9. according to the preparation method of the transformer sealing gasket described in any one in claim 1-3, wherein, described preparation method also includes being heat-treated described expanded vermiculite at 200-250 DEG C.
The preparation method of transformer sealing gasket the most according to claim 9, wherein, the time of described heat treatment is 2-3h.
11. according to the preparation method of the transformer sealing gasket described in any one in claim 1-3, and wherein, in step a, the described mixing time is 1-2h.
The preparation method of 12. transformer sealing gaskets according to claim 11, wherein, in stepb, the described mixing time is 8-15h.
13. 1 kinds of transformer sealing gaskets, it is characterised in that described transformer sealing gasket is prepared from by the method described in any one in claim 1-12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410498633.XA CN104292798B (en) | 2014-09-25 | 2014-09-25 | Transformer sealing gasket and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410498633.XA CN104292798B (en) | 2014-09-25 | 2014-09-25 | Transformer sealing gasket and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104292798A CN104292798A (en) | 2015-01-21 |
| CN104292798B true CN104292798B (en) | 2016-08-24 |
Family
ID=52312766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410498633.XA Active CN104292798B (en) | 2014-09-25 | 2014-09-25 | Transformer sealing gasket and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104292798B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104629371A (en) * | 2015-01-30 | 2015-05-20 | 柳州市中配橡塑配件制造有限公司 | Rubber sheath rubber matrix |
| CN105802230A (en) * | 2016-04-14 | 2016-07-27 | 安徽精机械设备有限公司 | Silicone rubber sealing pad having low permanent compression set value and preparation method thereof |
| CN105949544A (en) * | 2016-05-09 | 2016-09-21 | 郭秀珍 | Transformer sealing ring with high wear resistance for electrical use |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000344987A (en) * | 1999-03-26 | 2000-12-12 | Daikin Ind Ltd | Rubber composition for hard disk drive gasket |
| CN103360708A (en) * | 2013-06-20 | 2013-10-23 | 安徽春辉仪表线缆集团有限公司 | Oil-resistant acrylic rubber sealing pad for transformer and preparation method thereof |
| CN103509297A (en) * | 2013-09-05 | 2014-01-15 | 安徽省科林电子有限公司 | Anti-aging transformer sealing gasket and preparation method thereof |
-
2014
- 2014-09-25 CN CN201410498633.XA patent/CN104292798B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000344987A (en) * | 1999-03-26 | 2000-12-12 | Daikin Ind Ltd | Rubber composition for hard disk drive gasket |
| CN103360708A (en) * | 2013-06-20 | 2013-10-23 | 安徽春辉仪表线缆集团有限公司 | Oil-resistant acrylic rubber sealing pad for transformer and preparation method thereof |
| CN103509297A (en) * | 2013-09-05 | 2014-01-15 | 安徽省科林电子有限公司 | Anti-aging transformer sealing gasket and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104292798A (en) | 2015-01-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102229724B (en) | Ternary rubber composite with wide temperature range and high damping property and preparation method thereof | |
| CN104292798B (en) | Transformer sealing gasket and preparation method thereof | |
| WO2018084694A8 (en) | Polyisoprene latex graphene composites and methods of making them | |
| CN101633768A (en) | Acrylic ester rubber and preparation method thereof | |
| CN105670145A (en) | Preparation method of ageing-resistant tire curing bladder | |
| CN104086831A (en) | Heat-resisting oil-resisting rubber material for automotive pipes | |
| CN104356562A (en) | Fluororubber rubber compound and preparation method thereof | |
| CN104725861A (en) | High-damping high-abrasion-resistance silicone rubber and preparation method thereof | |
| CN106279794A (en) | A kind of tendon Bovis seu Bubali color rubber composition for truck radial tire tread | |
| CN104312130B (en) | Transformator sealing gasket and preparation method thereof | |
| CN103030905A (en) | High-strength and high-stability modified PVC and preparation method thereof | |
| CN103804882A (en) | High-performance chlorohydrin rubber and preparation method thereof | |
| CN103613789A (en) | Non-asbestos beater jointing sealed panel and preparation method thereof | |
| CN107043495A (en) | A kind of damping shock-absorbing noise-reducing material and its production and use | |
| CN109021342B (en) | High-performance hydrogenated nitrile-based rubber compound and preparation method thereof | |
| CN106905894A (en) | A kind of refractory seals glue composition and refractory seals adhesive tape and preparation method thereof | |
| CN104292799B (en) | Transformator sealing gasket and preparation method thereof | |
| CN103602018A (en) | Method for improving oil resistance and high temperature resistance by blending desulfurized fluororubber micro-powder/acrylic rubber | |
| CN103436037B (en) | A kind of preparation method of fluorosilicone rubber/silicon rubber blend rubber for automotive high-voltage ignition wire | |
| US20080079189A1 (en) | Acquisition process of stoppers from mixed material agglomerate | |
| CN109777010A (en) | A kind of low pressure variable alloy elastomer seal and preparation method thereof | |
| CN103980715A (en) | Method for preparing rubber clamp fluorosilicone rubber material | |
| CN105199164B (en) | Automobile vacuum booster rubbery membrana dermalis | |
| CN106967239A (en) | A kind of anti-aging yielding rubber | |
| CN108659282B (en) | Wide-temperature-range high-damping oil-resistant damping rubber composite material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |