CN1274763C - Dipping-sealing wax for electronic element coil - Google Patents
Dipping-sealing wax for electronic element coil Download PDFInfo
- Publication number
- CN1274763C CN1274763C CN 200310104984 CN200310104984A CN1274763C CN 1274763 C CN1274763 C CN 1274763C CN 200310104984 CN200310104984 CN 200310104984 CN 200310104984 A CN200310104984 A CN 200310104984A CN 1274763 C CN1274763 C CN 1274763C
- Authority
- CN
- China
- Prior art keywords
- wax
- sealing
- dipping
- present
- tackifier
- 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.)
- Expired - Lifetime
Links
- 239000012173 sealing wax Substances 0.000 title claims abstract description 7
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 235000019271 petrolatum Nutrition 0.000 claims abstract description 9
- 239000012169 petroleum derived wax Substances 0.000 claims abstract description 9
- 235000019381 petroleum wax Nutrition 0.000 claims abstract description 8
- 239000004264 Petrolatum Substances 0.000 claims abstract description 6
- 229940066842 petrolatum Drugs 0.000 claims abstract description 6
- 239000001993 wax Substances 0.000 claims description 38
- 238000005470 impregnation Methods 0.000 claims description 27
- 239000004200 microcrystalline wax Substances 0.000 claims description 14
- 235000019808 microcrystalline wax Nutrition 0.000 claims description 14
- NDAUXUAQIAJITI-UHFFFAOYSA-N albuterol Chemical compound CC(C)(C)NCC(O)C1=CC=C(O)C(CO)=C1 NDAUXUAQIAJITI-UHFFFAOYSA-N 0.000 claims description 10
- 229940070384 ventolin Drugs 0.000 claims description 10
- 229920002367 Polyisobutene Polymers 0.000 claims description 7
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 claims description 5
- IAQRGUVFOMOMEM-UHFFFAOYSA-N butene Natural products CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 claims description 5
- 230000035515 penetration Effects 0.000 claims description 5
- 229920000642 polymer Polymers 0.000 claims description 5
- 229920001083 polybutene Polymers 0.000 claims description 2
- 238000007598 dipping method Methods 0.000 abstract description 3
- 238000002844 melting Methods 0.000 abstract description 3
- 230000008018 melting Effects 0.000 abstract description 3
- 239000011347 resin Substances 0.000 abstract description 3
- 229920005989 resin Polymers 0.000 abstract description 3
- 239000003566 sealing material Substances 0.000 abstract 2
- 230000006698 induction Effects 0.000 abstract 1
- 230000008676 import Effects 0.000 description 8
- 238000007670 refining Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 239000012535 impurity Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229940099259 vaseline Drugs 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004902 Softening Agent Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000012812 general test Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Structures Or Materials For Encapsulating Or Coating Semiconductor Devices Or Solid State Devices (AREA)
- Sealing Material Composition (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Organic Insulating Materials (AREA)
Abstract
The present invention relates to a dipping-sealing wax composition for electronic elements, which comprises petroleum wax, petrolatum and tackifiers. The dipping-sealing wax composition of the present invention has the characteristics of high dripping melting point, excellent high-temperature property, good electrical property, low melt viscosity, good adhesiveness, good moisture resistance, etc. Dipping-sealing materials for special coils of electronic elements by the prior art all use resin as a main component, and thus, the cost of the dipping-sealing materials is higher. The dipping-sealing wax composition of the present invention is suitable for dipping and sealing electric induction coils, medium-frequency electronic coils, high-frequency electronic coils and other electronic elements.
Description
Technical field
The present invention relates to a kind of impregnation enveloping wax, be specially adapted to the dipping of telefault, intermediate frequency and high-frequency electronic coil and other electronic coil and seal.
Background technology
During telefault is produced, need winding space to be carried out filling, simultaneously coil is sealed with impregnation enveloping wax.General simple commodity in use paraffin of prior art or Microcrystalline Wax though there are defectives such as high-temperature behavior and toughness plasticity difference in low price, easily run off under working temperature, easily break under external force.It all is main component with the resin with material that prior art is introduced the special-purpose coil sealing of electronic component, as: all adopt the resin package coil in the molding method of patent introductions such as US 4115175, US 5656350, this material for sealing cost is higher, in the face of the more and more fierce electronic market of competition, be difficult to satisfy the requirement that the user pursues high performance-price ratio, and the toughness plasticity of resene impregnation enveloping material is also relatively poor.
Summary of the invention
At the deficiencies in the prior art, the invention provides a kind of cost low, make the impregnation enveloping Wax composition high with performance.
Electronic element coil impregnation enveloping wax of the present invention comprises by weight:
D) 50～90% petroleum wax, dropping point are about 65～85 ℃;
E) 5～40% petrolatums, petrolatum is selected from industry or medical ventolin;
F) 1～30% tackifier, tackifier are selected from butene polymers.
The petroleum wax dropping point that is used for the present invention is about 65～85 ℃, and alternative petroleum wax comprises: 85
#Microcrystalline Wax (deriving from the Nanyang refinery), 80
#Microcrystalline Wax (deriving from Nanchong refinery, Jingmen refinery etc.), 75
#Microcrystalline Wax (deriving from Nanchong refinery, Jingmen refinery, Jinzhou refinery etc.), 70
#Microcrystalline Wax (deriving from the Dushanzi refinery).The use range of these petroleum waxes in impregnation enveloping wax of the present invention is about 50～90%, preferably is about 60～85%.
The petrolatum that is used for the present invention is industry or medical ventolin, and its dropping point is about 45～75 ℃.The available petrolatum comprises: 3
#, 4
#Industrial vaseline (deriving from Lanzhou oil-refining chemical head factory), medical ventolin (deriving from Lanzhou oil-refining chemical head factory, Nanyang refinery, figure door refinery).The use range of these petrolatums is about 5～40%, preferably is about 10～30%.
Be used for tackifier of the present invention and be selected from butene polymers, its molecular-weight average is about 800～30000.Tackifier used among the present invention comprise: polybutene, polyisobutene (deriving from Jinzhou refinery, Lanzhou oil-refining chemical head factory etc.).The used use range of tackifier in impregnation enveloping wax of the present invention is about 1～30%, preferably is about 1～20%.
Impregnation enveloping Wax composition of the present invention can also add some typical additives as required, as softening agent etc.
Impregnation enveloping wax of the present invention is under about 100～120 ℃ temperature, and various raw material mixed meltings are become the wax liquid of homogeneous transparent, moulding after filtering.By the impregnation enveloping wax that technology of the present invention is made, of light color, good luster does not have mechanical impurity, has good use properties.
The performance index of impregnation enveloping wax of the present invention are: melt drop temperature is about 75～85 ℃, and the penetration degree under 25 ℃ is about 35～45l/10mm, and the kinematic viscosity under 100 ℃ is about 15～25mm
2/ s, specific inductivity is about 2.0～2.5, and volume specific resistance is not less than 1 * 10
15Ω cm does not have mechanical impurity, non-corrosiveness.
The component that impregnation enveloping wax of the present invention is selected has following characteristics:
A) select for use have electrical property, moistureproofness is good and hardness, viscosity are suitable, and thermosetting material---petroleum wax is as body material.
B) select petrolatum for use, have suitable solid-state hardness and good liquid fluidity to guarantee impregnation enveloping wax.
C) select tackifier for use, to guarantee that impregnation enveloping wax after liquid phase transfers solid phase to, has suitable cohesive strength.
The advantage of sealing wax of the present invention is tangible:
A) have higher melt drop temperature, the high-temperature behavior excellence is not also softened under higher working temperature, is not trickled, and can well protect coil;
B) have suitable melt viscosity, can extraordinary fill line ring gap under 100～120 ℃ dipping temperature;
C) have good electrical insulation properties and moisture resistance, guaranteed the stable of electronic component electrical property;
D) no burn into inclusion-free can not produce detrimentally affect to electronic component;
E) nontoxic, free from extraneous odour can not cause damage to the healthy of Manufacturing Worker.
Embodiment
Below by specific embodiment, to impregnation enveloping wax of the present invention and preparation method thereof, be described in further detail, but specific embodiment does not use as limitative examples.
Embodiment: (following all expressions by weight percentage)
Test method
Following test method is the method for used in an embodiment general test used in electronic industry wax.
Melt drop temperature GB/T 8036
Softening temperature GB/T 4507
Penetration degree GB/T 4985
Mechanical impurity GB/T 511
Corrosion test GB/T 5096
Specific inductivity GB/T 1409
Volume specific resistance GB/T 1410
The preparation of the impregnation enveloping wax of the embodiment 1,2,3,4,5 among the present invention is under about 110 ℃ temperature, adds the wax liquid that raw material and mixed melting become homogeneous transparent according to the order of sequence, after filtering cooling forming.
Comparative example 1 is a kind of typical import impregnation enveloping wax material.
Embodiment 1
80
#Microcrystalline Wax, 82.4 ℃ of (Nanchong refinerys) 77.5% of dropping point
Medical ventolin, 67.5 ℃ of (Nanyang refinerys) 20% of dropping point
Polyisobutene, molecular-weight average 20000 (Jinzhou refinery) 2.5%
Embodiment 2
80
#Microcrystalline Wax (Nanchong refinery) 80%
Medical ventolin, 65 ℃ of (Lanzhou oil-refining chemical head factories) 10% of dropping point
Polyisobutene, molecular-weight average 1000 (Jinzhou refinery) 10%
Embodiment 3
80
#Microcrystalline Wax, 81.0 ℃ of (Nanyang refinerys) 84% of dropping point
Industrial vaseline, 67 ℃ of (Lanzhou oil-refining chemical head factories) 10% of dropping point
Polyisobutene, molecular-weight average 1000 (Lanzhou oil-refining chemical head factory) 6%
Embodiment 4
80
#Microcrystalline Wax, 81.6 ℃ of (Jingmen refinerys) 80% of dropping point
Medical ventolin, 67.5 ℃ of (Nanyang refinerys) 10% of dropping point
Polyisobutene, molecular-weight average 1000 (Jinzhou refinery) 10%
Embodiment 5
80
#Microcrystalline Wax, 82.4 ℃ of (Nanchong refinerys) 75% of dropping point
Medical ventolin, 56 ℃ of (figure door refinerys) 10% of dropping point
Polyisobutene, molecular-weight average 1000 (Jinzhou refinery) 15%
The test-results of embodiment sees Table 1.
Table 1 test-results
| Embodiment | 1 | 2 | 3 | 4 | 5 | Comparative example 1 |
| Melt drop temperature, ℃ viscosity (100 ℃), mm 2/ s penetration degree (25 ℃), 1/10mm mechanical impurity corrosion test (100 ℃ of copper sheets, 3h) specific inductivity volume specific resistance, (normal temperature) Ω cm | 80 20.70 43 no qualified 2.2 6.36 * 1015 | 80.2 17.22 38 no qualified 2.2 4.97 * 1015 | 80.7 15.66 32 no qualified 2.2 6.44 * 1015 | 80.8 17.12 34 no qualified 2.2 5.96 * 1015 | 78.6 21.05 40 no qualified 2.2 6.13 * 1015 | 78 28.29 37 no qualified 2.1 6.27 * 10 14 |
As can be seen from Table 1, the melt drop temperature of impregnation enveloping wax embodiment 1,2,3,4,5 of the present invention all is higher than the import sample, illustrates that the elevated temperature heat performance of impregnation enveloping wax of the present invention is better than the import sample; The viscosity of impregnation enveloping wax embodiment 1,2,3,4,5 of the present invention all significantly is lower than the import sample, illustrates that the liquid fluidity of impregnation enveloping wax of the present invention is better than the import sample, fill line ring gap when being convenient to flood; Specific inductivity and the volume specific resistance of impregnation enveloping wax embodiment 1,2,3,4,5 of the present invention all are higher than the import sample, illustrate that the electrical property of impregnation enveloping wax of the present invention is better than the import sample; In addition, the penetration degree wider distribution of impregnation enveloping wax embodiment 1,2,3,4,5 of the present invention illustrates that the hardness of impregnation enveloping wax of the present invention can better satisfy the actual requirement of various electronic coil production technique than the import sample.
Claims (10)
1, a kind of electronic element coil impregnation enveloping wax comprises by weight:
A) 50～90% petroleum wax, dropping point are 65～85 ℃;
B) 5～40% petrolatums, petrolatum is selected from industry or medical ventolin;
C) 1～30% tackifier, tackifier are selected from butene polymers.
2,, it is characterized in that described petroleum wax is selected from 85 according to the described wax of sealing of claim 1
#Microcrystalline Wax, 80
#Microcrystalline Wax, 75
#Microcrystalline Wax, 70
#In the Microcrystalline Wax one or more.
3,, it is characterized in that described petroleum wax content is 60～85% according to claim 1 or the 2 described waxes of sealing.
4, according to the described wax of sealing of claim 1, the dropping point that it is characterized in that described industry or medical ventolin is 45～75 ℃.
5, according to claim 1 or the 4 described waxes of sealing, the content that it is characterized in that described industry or medical ventolin is 10～30%.
6, according to the described wax of sealing of claim 1, the molecular-weight average that it is characterized in that described butene polymers is 800～30000.
7, according to claim 1 or the 6 described waxes of sealing, it is characterized in that described butene polymers is selected from polybutene or polyisobutene.
8,, it is characterized in that described tackifier levels is 1～20% according to the described wax of sealing of claim 1.
9, according to the described wax of sealing of claim 1, it is characterized in that the described melt drop temperature of sealing wax is 75～85 ℃, the penetration degree under 25 ℃ is 35～45l/10mm, the kinematic viscosity under 100 ℃ is 15～25mm
2/ s.
10, according to the described wax of sealing of claim 1, it is characterized in that the described specific inductivity of sealing wax is 2.0～2.5, volume specific resistance is not less than 1 * 10
15Ω cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310104984 CN1274763C (en) | 2003-10-31 | 2003-10-31 | Dipping-sealing wax for electronic element coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310104984 CN1274763C (en) | 2003-10-31 | 2003-10-31 | Dipping-sealing wax for electronic element coil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1611551A CN1611551A (en) | 2005-05-04 |
| CN1274763C true CN1274763C (en) | 2006-09-13 |
Family
ID=34757142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200310104984 Expired - Lifetime CN1274763C (en) | 2003-10-31 | 2003-10-31 | Dipping-sealing wax for electronic element coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1274763C (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101173102B (en) * | 2006-11-01 | 2012-04-04 | 中国石油化工股份有限公司 | Soft mlcrocrystalline wax composition |
| CN101240113B (en) * | 2008-02-29 | 2010-06-09 | 中国石油天然气股份有限公司 | Wax for airplane flight recorder and preparation method |
| CN101792652A (en) * | 2010-03-11 | 2010-08-04 | 沈阳化工学院 | Bentonite construction sealant and preparation method thereof |
| CN102453442B (en) * | 2010-10-14 | 2014-03-05 | 中国石油化工股份有限公司 | Aeroengine turbine guide vane polishing protection wax and polishing method |
| CN102382473B (en) * | 2011-09-17 | 2012-12-05 | 安徽江威精密制造有限公司 | Novel metalized film capacitor encapsulation wax |
| CN102382475B (en) * | 2011-09-17 | 2013-03-27 | 安徽江威精密制造有限公司 | Metalized film capacitor encapsulation wax |
| CN102504550B (en) * | 2011-10-27 | 2013-10-16 | 铜陵市新泰电容电器有限责任公司 | Sealing paste of metallized film capacitor |
| CN102382477B (en) * | 2011-10-27 | 2013-03-20 | 铜陵市新泰电容电器有限责任公司 | Capacitor encapsulating wax |
| CN103804919B (en) * | 2012-11-07 | 2016-04-27 | 中国石油化工股份有限公司 | A kind of hard anodizing protection wax and preparation method thereof |
| CN103937274B (en) * | 2014-04-16 | 2016-08-17 | 江苏华盛电气股份有限公司 | A kind of fire resistant anticorrosive transformator |
| CN106373780A (en) * | 2016-08-31 | 2017-02-01 | 安徽航睿电子科技有限公司 | Low-voltage power capacitor impregnant and production method thereof |
| CN108102395A (en) * | 2017-12-23 | 2018-06-01 | 刘家记 | A kind of impregnation enveloping wax for improving ceramic capacitor electrical stability |
| CN115216110B (en) * | 2022-06-16 | 2024-04-26 | 江苏铸华新材料有限公司 | Special type dipping sealing wax and preparation method thereof |
-
2003
- 2003-10-31 CN CN 200310104984 patent/CN1274763C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1611551A (en) | 2005-05-04 |
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| C10 | Entry into substantive examination | ||
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Granted publication date: 20060913 |