CN103102580A - Capacitor thin film containing modified bauxite and preparation method thereof - Google Patents
Capacitor thin film containing modified bauxite and preparation method thereof Download PDFInfo
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- CN103102580A CN103102580A CN2012104528900A CN201210452890A CN103102580A CN 103102580 A CN103102580 A CN 103102580A CN 2012104528900 A CN2012104528900 A CN 2012104528900A CN 201210452890 A CN201210452890 A CN 201210452890A CN 103102580 A CN103102580 A CN 103102580A
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Abstract
The invention discloses a capacitor thin film containing modified bauxite and a preparation method thereof. The capacitor thin film containing modified bauxite comprises the following raw materials in parts by weight: 50-60 of metallocene polypropylene resin, 27-33 of nylon 6, 13-16 of LDPE (Linear low density polyethylene), 10-15 of homo-polypropylene, 3-5 of epoxy linseed oil, 2-3 of polyvinyl alcohol, 1-2 of aluminum hydroxide, 1-2 of polyisobutylene, 8-12 of diatomite, 1-2 of ferrocene, 0.7-0.9 of poly-4-methyl-1-amylene, 5-7 of modified bauxite, 1.4-1.6 of cross-linking agent TAIC, 0.5-0.7 of polytetrafluoetylene, 1.6-2.0 of dioctyl maleate, 8-10 of calcium stearate and 1.1-1.3 of modified trees ash. The preparation method disclosed by the invention is simple; and simultaneously, the diatomite, the modified bauxite and the modified trees ash are added to the raw materials so that the barrier property and air tightness of the thin film are improved, and the thin film has good resistance to pressure and impact resistance and simultaneously has the characteristics of high heat-seal strength and good heat sealing property.
Description
Technical field
The present invention relates to a kind of capacitor film material, be specifically related to a kind of capacitor film that contains the modified aluminium alumina and preparation method thereof.
Background technology
Film capacitor is to work as electrode with tinsel, with itself and poly-ethyl ester, polypropylene, the plastics films such as polystyrene or polycarbonate, overlapping from two ends after, be wound into the electrical condenser of structure cylindraceous; 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, adopt the very difficult requirement that adapts to market of film of single raw material production, but every kind of raw material has its weak point, so the film of producing is difficult to satisfy the demand of various situations.
Summary of the invention
the object of the present invention is to provide a kind of capacitor film that contains the modified aluminium alumina and preparation method thereof, the present invention adopts metallocene polypropylene resins, nylon 6 and LDPE Low Density Polyethylene plurality of raw materials are mixed, and add the multiple auxiliary materials additive through extruding, blown film typing and cutting make capacitor film, the preparation method is simple, added simultaneously diatomite in raw material, modified aluminium alumina and modification trees ashes, barrier and the resistance to air loss of film have been strengthened, have good resistance to pressure and shock-resistance, has simultaneously heat seal strength high, the characteristics that heat sealability is good.
The present invention adopts following technical scheme to achieve these goals:
The capacitor film that contains the modified aluminium alumina, the weight part of its constitutive material is: metallocene polypropylene resins 50-60, nylon 6 27-33, LDPE Low Density Polyethylene 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, modified aluminium alumina 5-7, linking agent TAIC 1.4-1.6, tetrafluoroethylene 0.5-0.7, dioctyl maleate 1.6-2.0, calcium stearate 8-10 and modification trees ashes 1.1-1.3.
The capacitor film that contains the modified aluminium alumina, the weight part of its constitutive material is: metallocene polypropylene resins 55, nylon 6 30, LDPE Low Density Polyethylene 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, modified aluminium alumina 6, linking agent TAIC 1.5, tetrafluoroethylene 0.6, dioctyl maleate 1.8, calcium stearate 9 and modification trees ashes 1.2.
Contain the preparation method of the capacitor film of modified aluminium alumina, comprise the following steps:
(1), take diatomite by the weight part of constitutive material, first with diatomite with 20-25% hydrogen peroxide dipping 3-4 hour, at 400-450 ℃ of lower roasting 3-4 hour, be ground into 400-45 order powder;
(2), the weight part by constitutive material adds epoxy Toenol 1140, polyvinyl alcohol in mixer, be warming up to 80-85 ℃, add again polyisobutene, aluminium hydroxide, ferrocene to stir after 10-15 minute, add again the diatomite after step (1) is processed, stir and be heated to 160-170 ℃, add at last homo-polypropylene to stir 20-30 minute, obtain the modification homo-polypropylene;
(3), take other constitutive materials by the weight part of constitutive material, then and the modification homo-polypropylene of step (2) after processing mix and stir; Send into extrusion machine fused mass and extrude, melt temperature is 175-195 ℃; Carry out the typing of die head blown film, die head temperature is to raise gradually from bottom to top, and its scope control is at 185-225 ℃; Then traction cutting, last rolling obtains.
The preparation method of described modification trees ashes is for adding Silane coupling agent KH550,0.2-0.3% sodium laurylsulfate and the 1-2% aluminium hydroxide of 1-2% in the trees ashes, after high-speed stirring 1-2 hour, grinding obtains.
The preparation method of described modified aluminium alumina be with bauxitic clay temperature 600-700 ℃ lower scaling loss 4-5 hour, after grind to form nanometer powder, admix the Di(dioctylpyrophosphato) ethylene titanate agitating that is equivalent to powder weight 3-5% even, oven dry is ground into powder and get final product.
The melting index of described metallocene polypropylene resins is between 2.0-5.0g/10min, and density is 0.89-0.90 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 metallocene polypropylene resins, nylon 6 and LDPE Low Density Polyethylene plurality of raw materials to mix, and interpolation multiple auxiliary materials additive process is extruded, blown film is finalized the design and cutting makes capacitor film, the preparation method is simple, diatomite, modified aluminium alumina and modification trees ashes have been added simultaneously in raw material, barrier and the resistance to air loss of film have been strengthened, have good resistance to pressure and shock-resistance, have simultaneously the characteristics that heat seal strength is high, heat sealability is good.
Embodiment
Embodiment 1: contain the capacitor film of modified aluminium alumina, the weight part of its constitutive material is: metallocene polypropylene resins 55, nylon 6 30, LDPE Low Density Polyethylene 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, modified aluminium alumina 6, linking agent TAIC 1.5, tetrafluoroethylene 0.6, dioctyl maleate 1.8, calcium stearate 9 and modification trees ashes 1.2.
Contain the preparation method of the capacitor film of modified aluminium alumina, comprise the following steps:
(1), take diatomite by the weight part of constitutive material, first with diatomite with 20-25% hydrogen peroxide dipping 3-4 hour, at 400-450 ℃ of lower roasting 3-4 hour, be ground into 400-45 order powder;
(2), the weight part by constitutive material adds epoxy Toenol 1140, polyvinyl alcohol in mixer, be warming up to 80-85 ℃, add again polyisobutene, aluminium hydroxide, ferrocene to stir after 10-15 minute, add again the diatomite after step (1) is processed, stir and be heated to 160-170 ℃, add at last homo-polypropylene to stir 20-30 minute, obtain the modification homo-polypropylene;
(3), take other constitutive materials by the weight part of constitutive material, then and the modification homo-polypropylene of step (2) after processing mix and stir; Send into extrusion machine fused mass and extrude, melt temperature is 175-195 ℃; Carry out the typing of die head blown film, die head temperature is to raise gradually from bottom to top, and its scope control is at 185-225 ℃; Then traction cutting, last rolling obtains.
The preparation method of described modification trees ashes is for adding Silane coupling agent KH550,0.2-0.3% sodium laurylsulfate and the 1-2% aluminium hydroxide of 1-2% in the trees ashes, after high-speed stirring 1-2 hour, grinding obtains.
The preparation method of described modified aluminium alumina be with bauxitic clay temperature 600-700 ℃ lower scaling loss 4-5 hour, after grind to form nanometer powder, admix the Di(dioctylpyrophosphato) ethylene titanate agitating that is equivalent to powder weight 3-5% even, oven dry is ground into powder and get final product.
The melting index of described metallocene polypropylene resins is between 2.0-5.0g/10min, and density is 0.89-0.90 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 makes is as follows:
MFR (g/10min): 35.8; Tensile strength (Mpa): 38.4; Heat seal strength: 12.7; Flexural strength (Mpa): 52.5; Modulus in flexure (Mpa): 2431; Frictional coefficient: 0.187; Percent thermal shrinkage (%): 0.89-0.94; Glossiness (%): 81.5-83.8.
Claims (6)
1. capacitor film that contains the modified aluminium alumina, the weight part that it is characterized in that its constitutive material is: metallocene polypropylene resins 50-60, nylon 6 27-33, LDPE Low Density Polyethylene 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, modified aluminium alumina 5-7, linking agent TAIC 1.4-1.6, tetrafluoroethylene 0.5-0.7, dioctyl maleate 1.6-2.0, calcium stearate 8-10 and modification trees ashes 1.1-1.3.
2. the capacitor film that contains the modified aluminium alumina according to claim 1, is characterized in that the weight part of its constitutive material is: metallocene polypropylene resins 55, nylon 6 30, LDPE Low Density Polyethylene 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, modified aluminium alumina 6, linking agent TAIC 1.5, tetrafluoroethylene 0.6, dioctyl maleate 1.8, calcium stearate 9 and modification trees ashes 1.2.
3. preparation method who contains the capacitor film of modified aluminium alumina as claimed in claim 1 is characterized in that comprising the following steps:
(1), take diatomite by the weight part of constitutive material, first with diatomite with 20-25% hydrogen peroxide dipping 3-4 hour, at 400-450 ℃ of lower roasting 3-4 hour, be ground into 400-45 order powder;
(2), the weight part by constitutive material adds epoxy Toenol 1140, polyvinyl alcohol in mixer, be warming up to 80-85 ℃, add again polyisobutene, aluminium hydroxide, ferrocene to stir after 10-15 minute, add again the diatomite after step (1) is processed, stir and be heated to 160-170 ℃, add at last homo-polypropylene to stir 20-30 minute, obtain the modification homo-polypropylene;
(3), take other constitutive materials by the weight part of constitutive material, then and the modification homo-polypropylene of step (2) after processing mix and stir; Send into extrusion machine fused mass and extrude, melt temperature is 175-195 ℃; Carry out the typing of die head blown film, die head temperature is to raise gradually from bottom to top, and its scope control is at 185-225 ℃; Then traction cutting, last rolling obtains.
4. the capacitor film that contains the modified aluminium alumina according to claim 1, it is characterized in that: the preparation method of described modification trees ashes is for adding Silane coupling agent KH550,0.2-0.3% sodium laurylsulfate and the 1-2% aluminium hydroxide of 1-2% in the trees ashes, after high-speed stirring 1-2 hour, grinding obtains.
5. the capacitor film that contains the modified aluminium alumina according to claim 1, it is characterized in that: the preparation method of described modified aluminium alumina for bauxitic clay temperature 600-700 ℃ lower scaling loss 4-5 hour, after grind to form nanometer powder, admix the Di(dioctylpyrophosphato) ethylene titanate agitating that is equivalent to powder weight 3-5% even, oven dry is ground into powder and get final product.
6. the capacitor film that contains the modified aluminium alumina according to claim 1, it is characterized in that: the melting index of described metallocene polypropylene resins is between 2.0-5.0g/10min, and density is 0.89-0.90 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
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210452890.0A CN103102580B (en) | 2012-11-13 | 2012-11-13 | Capacitor thin film containing modified bauxite and preparation method thereof |
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| CN201210452890.0A CN103102580B (en) | 2012-11-13 | 2012-11-13 | Capacitor thin film containing modified bauxite and preparation method thereof |
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| CN103102580A true CN103102580A (en) | 2013-05-15 |
| CN103102580B CN103102580B (en) | 2015-05-13 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103524883A (en) * | 2013-10-31 | 2014-01-22 | 合肥得润电子器件有限公司 | Modified polypropylene insulation material for communication equipment wire harness |
| CN103937100A (en) * | 2014-04-12 | 2014-07-23 | 安徽江威精密制造有限公司 | Polypropylene metallized film with good mechanical strength for capacitor and preparation method thereof |
| CN103951878A (en) * | 2014-04-12 | 2014-07-30 | 安徽江威精密制造有限公司 | Isotatic polypropylene modified capacitor metallized thin film, and preparation method thereof |
| CN103951884A (en) * | 2014-04-12 | 2014-07-30 | 安徽江威精密制造有限公司 | High-temperature stable metallized thin film used for capacitors, and preparation method thereof |
| CN103951885A (en) * | 2014-04-12 | 2014-07-30 | 安徽江威精密制造有限公司 | Anti-adhesion heat-resistant capacitor metallized thin film, and preparation method thereof |
| WO2015131583A1 (en) * | 2014-03-06 | 2015-09-11 | 常熟市江顺塑料制品有限公司 | Ultrathin plastic film overlay |
| CN108364787A (en) * | 2017-12-29 | 2018-08-03 | 安徽铜峰电子股份有限公司 | A kind of High-temperature-rescapacitor capacitor film and its capacitor |
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| CN1275145A (en) * | 1998-08-18 | 2000-11-29 | 蒙岱尔技术有限公司 | Polypropylene composition useful for making solid state oriented film |
| CN101747548A (en) * | 2008-12-16 | 2010-06-23 | 金发科技股份有限公司 | Compound for preparation of high-strength polyolefin permeable membrane and preparation method thereof |
| CN102265361A (en) * | 2008-12-22 | 2011-11-30 | 大金工业株式会社 | Film for film capacitor, and film capacitor |
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- 2012-11-13 CN CN201210452890.0A patent/CN103102580B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1275145A (en) * | 1998-08-18 | 2000-11-29 | 蒙岱尔技术有限公司 | Polypropylene composition useful for making solid state oriented film |
| CN101747548A (en) * | 2008-12-16 | 2010-06-23 | 金发科技股份有限公司 | Compound for preparation of high-strength polyolefin permeable membrane and preparation method thereof |
| CN102265361A (en) * | 2008-12-22 | 2011-11-30 | 大金工业株式会社 | Film for film capacitor, and film capacitor |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103524883A (en) * | 2013-10-31 | 2014-01-22 | 合肥得润电子器件有限公司 | Modified polypropylene insulation material for communication equipment wire harness |
| WO2015131583A1 (en) * | 2014-03-06 | 2015-09-11 | 常熟市江顺塑料制品有限公司 | Ultrathin plastic film overlay |
| CN103937100A (en) * | 2014-04-12 | 2014-07-23 | 安徽江威精密制造有限公司 | Polypropylene metallized film with good mechanical strength for capacitor and preparation method thereof |
| CN103951878A (en) * | 2014-04-12 | 2014-07-30 | 安徽江威精密制造有限公司 | Isotatic polypropylene modified capacitor metallized thin film, and preparation method thereof |
| CN103951884A (en) * | 2014-04-12 | 2014-07-30 | 安徽江威精密制造有限公司 | High-temperature stable metallized thin film used for capacitors, and preparation method thereof |
| CN103951885A (en) * | 2014-04-12 | 2014-07-30 | 安徽江威精密制造有限公司 | Anti-adhesion heat-resistant capacitor metallized thin film, and preparation method thereof |
| CN103951885B (en) * | 2014-04-12 | 2016-06-08 | 安徽江威精密制造有限公司 | A kind of heat-resisting capacitor metalized film of antiblocking and its preparation method |
| CN103951878B (en) * | 2014-04-12 | 2016-06-08 | 安徽江威精密制造有限公司 | A kind of capacitor metalized film of isotatic polypropylene modification and its preparation method |
| CN103937100B (en) * | 2014-04-12 | 2016-06-08 | 安徽江威精密制造有限公司 | The electrical condenser polypropylene metallized film that a kind of physical strength is good and its preparation method |
| CN108364787A (en) * | 2017-12-29 | 2018-08-03 | 安徽铜峰电子股份有限公司 | A kind of High-temperature-rescapacitor capacitor film and its capacitor |
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| CN103102580B (en) | 2015-05-13 |
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