CN102964825B - Capacitor film with nylon PA66 as substrate and preparation method thereof - Google Patents
Capacitor film with nylon PA66 as substrate and preparation method thereof Download PDFInfo
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- CN102964825B CN102964825B CN201210426695.0A CN201210426695A CN102964825B CN 102964825 B CN102964825 B CN 102964825B CN 201210426695 A CN201210426695 A CN 201210426695A CN 102964825 B CN102964825 B CN 102964825B
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Abstract
The invention discloses a capacitor film with nylon PA66 as a substrate and a preparation method thereof. The capacitor film comprises the following raw materials, by weight : 55-65 parts of nylon PA66, 20-25 parts of LDPE (low density polyethylene), 13-16 parts of homogeneous ethylene / alpha-olefin copolymer, 10-15 parts of homo-polypropylene, 3-5 parts of epoxy linseed oil, 2-3 parts of aluminum hydroxide, 1-2 parts of polyvinyl alcohol, 1-2 parts of polyisobutylene, 8-12 parts of diatomite, 1-2 parts of ferrocene, 0.7-0.9 part of poly-4-methyl-1-pentene, 0.3-0.5 part of magnesium oxide, 0.1-0.3 part of alumina, 5-7 parts of nanometer clay, 1.4-1.6 parts of glycerol triacetate, 1.7-2.3 parts of chlorinated paraffin, 3-5 parts of calcium stearate, 1-3 parts of methyl trimethoxy silane and 1.8-2.2 parts of modified wood ash. The invention mainly adopts nylon PA66 supplemented by low density polyethylene and homogeneous ethylene / alpha-olefin copolymer; and various accessories and additives are subjected to mixing and extrusion, blown film sizing and cutting to prepare the capacitor film. The preparation method is simple; and diatomite, nanometer clay and modified wood ash are added into the raw materials at the same time to enhance barrier property and air tightness of the film; besides, the capacitor film has characteristics of good pressure resistance, impact resistance, high heat sealing strength, and good heat sealing performance.
Description
Technical field
The present invention relates to a kind of capacitor film material, be specifically related to a kind of with nylon PA66 capacitor film that is matrix and preparation method thereof.
Background technology
Film capacitor works as electrode with tinsel, by itself and poly-ethyl ester, and polypropylene, the plastics film such as polystyrene or polycarbonate, after the overlap of two ends, is wound into the electrical condenser of cylindric structure; In the middle of all plastics film electric capacity, the characteristic of polypropylene (PP) electric capacity and polystyrene (PS) electric capacity is the most remarkable, certainly the price of these two kinds of electrical condensers is also higher, the film quality of electrical condenser directly affects work-ing life and the product performance of electrical condenser, the demand of capacitor film is large, kind is many, the film of single raw material production is adopted to be difficult to adapt to the requirement in market, but often kind of raw material has its weak point, so the film produced is difficult to the demand meeting various situation.
Summary of the invention
The object of the present invention is to provide a kind of with nylon PA66 capacitor film that is matrix and preparation method thereof, the present invention adopts nylon PA66 to be main, Low Density Polyethylene and homogeneous ethylene/alpha olefin polymer are auxiliary, multiple auxiliary materials additive jointly mix extrude, blown film sizing and the obtained capacitor film of cutting, preparation method is simple, with the addition of diatomite, nanoclay and modification tree ash in the feed simultaneously, enhance barrier and the resistance to air loss of film, there is good resistance to pressure and shock-resistance, there is the feature that heat seal strength is high, heat sealability is good simultaneously.
The present invention adopts following technical scheme to achieve these goals:
With the capacitor film that nylon PA66 is matrix, the weight part of its constitutive material is: nylon PA66 55-65, LDPE Low Density Polyethylene 20-25, homogeneous ethylene/alpha olefin polymer 13-16, homo-polypropylene 10-15, epoxy Toenol 1140 3-5, polyvinyl alcohol 2-3, aluminium hydroxide 1-2, polyisobutene 1-2, diatomite 8-12, ferrocene 1-2, poly-4-methyl-1-pentene 0.7-0.9, magnesium oxide 0.3-0.5, aluminum oxide 0.1-0.3, nanoclay 5-7, Vanay 1.4-1.6, clorafin 1.7-2.3, calcium stearate 3-5, methyltrimethoxy silane 1-3 and modification tree ash 1.8-2.2.
With the capacitor film that nylon PA66 is matrix, the weight part of its constitutive material is: nylon PA66 60, LDPE Low Density Polyethylene 22, homogeneous ethylene/alpha olefin polymer 15, homo-polypropylene 12, epoxy Toenol 1140 4, polyvinyl alcohol 2.5, aluminium hydroxide 1.5, polyisobutene 1.5, diatomite 10, ferrocene 1.5, poly-4-methyl-1-pentene 0.8, magnesium oxide 0.4, aluminum oxide 0.2, nanoclay 6, Vanay 1.5, clorafin 2, calcium stearate 4, methyltrimethoxy silane 2 and modification tree ash 2.
The preparation method of the capacitor film being matrix with nylon PA66, comprises the following steps:
(1), by the weight part of constitutive material take diatomite, first by diatomite 20-25% hydrogen peroxide dipping 3-4 hour, roasting 3-4 hour at 400-450 DEG C, be ground into 400-45 order powder;
(2), by the weight part of constitutive material, epoxy Toenol 1140, polyvinyl alcohol are added in mixer, be warming up to 80-85 DEG C, add polyisobutene, aluminium hydroxide, ferrocene stirring again after 10-15 minute, add the diatomite after step (1) process again, stir and be heated to 160-170 DEG C, finally add homo-polypropylene and stir 20-30 minute, obtain modification homo-polypropylene;
(3), by the weight part of constitutive material take other constitutive materials, the modification homo-polypropylene after then processing with step (2) mixes and stirs; Feeding extrusion machine fused mass is extruded, and melt temperature is 165-185 DEG C; Carry out the sizing of die head blown film, die head temperature raises gradually from bottom to top, and its scope control is at 175-195 DEG C; Then draw cutting, last rolling obtains.
The preparation method of described modification tree ash adds the Silane coupling agent KH550 of 1-2%, 0.2-0.3% sodium laurylsulfate and 1-2% aluminium hydroxide in tree ash, and after high-speed stirring 1-2 hour, grinding obtains.
The melting index of described homogeneous ethylene/alpha olefin polymer is between 2.0-5.0g/10min, and density is 0.89-0.92 g/cm
3between, the melting index of described LDPE Low Density Polyethylene is 1.85-1.93g/10min, density 0.915-0.930g/cm
2.
Beneficial effect of the present invention:
The present invention adopts nylon PA66 to be main, Low Density Polyethylene and homogeneous ethylene/alpha olefin polymer are auxiliary, multiple auxiliary materials additive jointly mix extrude, blown film sizing and the obtained capacitor film of cutting, preparation method is simple, with the addition of diatomite, nanoclay and modification tree ash in the feed simultaneously, enhance barrier and the resistance to air loss of film, there is good resistance to pressure and shock-resistance, there is the feature that heat seal strength is high, heat sealability is good simultaneously.
Embodiment
Embodiment 1: the capacitor film being matrix with nylon PA66, the weight part of its constitutive material is: nylon PA66 60, LDPE Low Density Polyethylene 22, homogeneous ethylene/alpha olefin polymer 15, homo-polypropylene 12, epoxy Toenol 1140 4, polyvinyl alcohol 2.5, aluminium hydroxide 1.5, polyisobutene 1.5, diatomite 10, ferrocene 1.5, poly-4-methyl-1-pentene 0.8, magnesium oxide 0.4, aluminum oxide 0.2, nanoclay 6, Vanay 1.5, clorafin 2, calcium stearate 4, methyltrimethoxy silane 2 and modification tree ash 2.
The preparation method of the capacitor film being matrix with nylon PA66, comprises the following steps:
(1), by the weight part of constitutive material take diatomite, first by diatomite 20-25% hydrogen peroxide dipping 3-4 hour, roasting 3-4 hour at 400-450 DEG C, be ground into 400-45 order powder;
(2), by the weight part of constitutive material, epoxy Toenol 1140, polyvinyl alcohol are added in mixer, be warming up to 80-85 DEG C, add polyisobutene, aluminium hydroxide, ferrocene stirring again after 10-15 minute, add the diatomite after step (1) process again, stir and be heated to 160-170 DEG C, finally add homo-polypropylene and stir 20-30 minute, obtain modification homo-polypropylene;
(3), by the weight part of constitutive material take other constitutive materials, the modification homo-polypropylene after then processing with step (2) mixes and stirs; Feeding extrusion machine fused mass is extruded, and melt temperature is 165-185 DEG C; Carry out the sizing of die head blown film, die head temperature raises gradually from bottom to top, and its scope control is at 175-195 DEG C; Then draw cutting, last rolling obtains.
The preparation method of described modification tree ash adds the Silane coupling agent KH550 of 1-2%, 0.2-0.3% sodium laurylsulfate and 1-2% aluminium hydroxide in tree ash, and after high-speed stirring 1-2 hour, grinding obtains.
The melting index of described homogeneous ethylene/alpha olefin polymer is between 2.0-5.0g/10min, and density is 0.89-0.92 g/cm
3between, the melting index of described LDPE Low Density Polyethylene is 1.85-1.93g/10min, density 0.915-0.930g/cm
2.
The Performance Detection of the capacitor film that above-described embodiment 1 is obtained is as follows:
MFR (g/10min): 31; Tensile strength (Mpa): 40; Heat seal strength: 11.2; Flexural strength (Mpa): 55.3; Modulus in flexure (Mpa): 2327; Frictional coefficient: 0.175; Percent thermal shrinkage (%): 0.95-1.1; Glossiness (%): 82-85.
Claims (4)
1. the capacitor film that is matrix with nylon PA66, it is characterized in that the weight part of its constitutive material is: nylon PA66 55-65, LDPE Low Density Polyethylene 20-25, homogeneous ethylene/alpha olefin polymer 13-16, homo-polypropylene 10-15, epoxy Toenol 1140 3-5, polyvinyl alcohol 2-3, aluminium hydroxide 1-2, polyisobutene 1-2, diatomite 8-12, ferrocene 1-2, poly-4-methyl-1-pentene 0.7-0.9, magnesium oxide 0.3-0.5, aluminum oxide 0.1-0.3, nanoclay 5-7, Vanay 1.4-1.6, clorafin 1.7-2.3, calcium stearate 3-5, methyltrimethoxy silane 1-3 and modification tree ash 1.8-2.2,
The preparation method of described modification tree ash adds the Silane coupling agent KH550 of 1-2%, 0.2-0.3% sodium laurylsulfate and 1-2% aluminium hydroxide in tree ash, and after high-speed stirring 1-2 hour, grinding obtains.
2. the capacitor film that is matrix with nylon PA66 according to claim 1, it is characterized in that the weight part of its constitutive material is: nylon PA66 60, LDPE Low Density Polyethylene 22, homogeneous ethylene/alpha olefin polymer 15, homo-polypropylene 12, epoxy Toenol 1140 4, polyvinyl alcohol 2.5, aluminium hydroxide 1.5, polyisobutene 1.5, diatomite 10, ferrocene 1.5, poly-4-methyl-1-pentene 0.8, magnesium oxide 0.4, aluminum oxide 0.2, nanoclay 6, Vanay 1.5, clorafin 2, calcium stearate 4, methyltrimethoxy silane 2 and modification tree ash 2.
3., as claimed in claim 1 with a preparation method for the nylon PA66 capacitor film that is matrix, it is characterized in that comprising the following steps:
(1), by the weight part of constitutive material take diatomite, first by diatomite 20-25% hydrogen peroxide dipping 3-4 hour, roasting 3-4 hour at 400-450 DEG C, be ground into 400-45 order powder;
(2), by the weight part of constitutive material, epoxy Toenol 1140, polyvinyl alcohol are added in mixer, be warming up to 80-85 DEG C, add polyisobutene, aluminium hydroxide, ferrocene stirring again after 10-15 minute, add the diatomite after step (1) process again, stir and be heated to 160-170 DEG C, finally add homo-polypropylene and stir 20-30 minute, obtain modification homo-polypropylene;
(3), by the weight part of constitutive material take other constitutive materials, the modification homo-polypropylene after then processing with step (2) mixes and stirs; Feeding extrusion machine fused mass is extruded, and melt temperature is 165-185 DEG C; Carry out the sizing of die head blown film, die head temperature raises gradually from bottom to top, and its scope control is at 175-195 DEG C; Then draw cutting, last rolling obtains.
4. the capacitor film that is matrix with nylon PA66 according to claim 1, is characterized in that: the melting index of described homogeneous ethylene/alpha olefin polymer is between 2.0-5.0g/10min, and density is 0.89-0.92 g/cm
3between, the melting index of described LDPE Low Density Polyethylene is 1.85-1.93g/10min, density 0.915-0.930g/cm
3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210426695.0A CN102964825B (en) | 2012-10-31 | 2012-10-31 | Capacitor film with nylon PA66 as substrate and preparation method thereof |
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| CN201210426695.0A CN102964825B (en) | 2012-10-31 | 2012-10-31 | Capacitor film with nylon PA66 as substrate and preparation method thereof |
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| CN102964825A CN102964825A (en) | 2013-03-13 |
| CN102964825B true CN102964825B (en) | 2015-02-18 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103665857B (en) * | 2013-11-11 | 2016-07-06 | 青岛康威化纤有限公司 | A kind of fiber-glass reinforced polyethylene alcohol-nylon66 fiber alloy material |
| CN108364787B (en) * | 2017-12-29 | 2020-06-02 | 安徽铜峰电子股份有限公司 | High-temperature-resistant capacitor film and capacitor thereof |
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| CN1753116B (en) * | 2004-09-20 | 2010-04-28 | 中国科学院电工研究所 | Carbon base porous electrode film used in super capacitor and its preparation method |
| TW200800609A (en) * | 2006-02-20 | 2008-01-01 | Daicel Chem | Porous membrane film and laminate using the same |
| CN101508841B (en) * | 2009-03-17 | 2012-02-08 | 武汉理工大学 | Flexible polymer dielectric material for electrical condenser and preparation thereof |
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Effective date of registration: 20200102 Address after: 233010 No. 68, Liugong Avenue, Bengbu City, Anhui Province (No. 1 in Yida Electronics Co., Ltd.) Patentee after: Bengbu Liqun Electronics Co., Ltd. Address before: 233010 No. 68 Liugong Road, Anhui, Bengbu Patentee before: Anhui Yida Electronic Co., Ltd. |
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