CN103102587A - Capacitor thin film with homo-polypropylene as substrate and preparation method thereof - Google Patents
Capacitor thin film with homo-polypropylene as substrate and preparation method thereof Download PDFInfo
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- CN103102587A CN103102587A CN2012104529388A CN201210452938A CN103102587A CN 103102587 A CN103102587 A CN 103102587A CN 2012104529388 A CN2012104529388 A CN 2012104529388A CN 201210452938 A CN201210452938 A CN 201210452938A CN 103102587 A CN103102587 A CN 103102587A
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Abstract
The invention discloses a capacitor thin film with homo-polypropylene as a substrate and a preparation method of the capacitor thin film. The composition raw materials of the thin film in parts by weight are as follows: 20-30 parts of LDPE (Low Density Polyethylene), 30-40 parts of homo-polypropylene, 3-5 parts of epoxy linseed oil, 2-3 parts of polyvinyl alcohol, 1-2 parts of aluminum hydroxide, 1-2 parts of polyisobutene, 8-12 parts of diatomite, 1-2 parts of dicyclopentadienyl iron, 0.9-1.1 parts of poly-4-methyl-1-pentene, 0.5-0.7 part of permanent white, 9-11 parts of nano-clay, 2.0-2.5 parts of catechol, 1.2-1.6 parts of di(ethylene glycol) benzoate, 1.3-1.8 parts of dibutyl phthalate, 4-6 parts of calcium stearate, 1.5-2.0 parts of vinyl triethoxy silane, and 2.5-3.0 parts of modified tree ash. The thin film provided by the invention is manufactured by taking the homo-polypropylene as a main raw material and the low density polyethylene as an auxiliary raw material, and enabling a plurality of auxiliary additives and the homo-polypropylene as well as the low density polyethylene to be subjected to mixed extrusion, film blowing sizing, and cutting; the preparation method is simple; simultaneously, the diatomite, the nano-clay and the modified tree ash are added into the raw materials to enhance barrier property and air tightness of the thin film; and the thin film has the characteristics of good pressure resistance, good impact resistance, heat seal strength, and good heat seal performance.
Description
Technical field
The present invention relates to a kind of capacitor film material, be specifically related to a kind of capacitor film take homo-polypropylene as matrix 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 take homo-polypropylene as matrix and preparation method thereof, it is main that the present invention adopts homo-polypropylene, Low Density Polyethylene is auxiliary, the common mixing of multiple auxiliary materials additive is extruded, blown film is finalized the design and cutting makes capacitor film, the preparation method is simple, diatomite, nanometer potter's clay 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.
The present invention adopts following technical scheme to achieve these goals:
capacitor film take homo-polypropylene as matrix, the weight part of its constitutive material is: LDPE Low Density Polyethylene 20-30, homo-polypropylene 30-40, 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 0.9-1.1, barium sulfate 0.5-0.7, nanometer potter's clay 9-11, catechol 2.0-2.5, glycol ether benzoic ether 1.2-1.6, phthalic acid dibutyl ester 1.3-1.8, calcium stearate 4-6, vinyltriethoxysilane 1.5-2.0 and modification trees ashes 2.5-3.0.
Capacitor film take homo-polypropylene as matrix, the weight part of its constitutive material is: LDPE Low Density Polyethylene 25, homo-polypropylene 35, 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 1, barium sulfate 0.6, nanometer potter's clay 10, catechol 2.2, glycol ether benzoic ether 1.4, phthalic acid dibutyl ester 1.5, calcium stearate 5, vinyltriethoxysilane 1.8 and modification trees ashes 2.8.
The preparation method of the capacitor film take homo-polypropylene as matrix comprises 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 165-185 ℃; 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 175-195 ℃; 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 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:
It is main that the present invention adopts homo-polypropylene, Low Density Polyethylene is auxiliary, the common mixing of multiple auxiliary materials additive is extruded, blown film is finalized the design and cutting makes capacitor film, the preparation method is simple, diatomite, nanometer potter's clay and modification trees ashes have been added simultaneously in raw material, strengthen barrier and the resistance to air loss of film, had good resistance to pressure and shock-resistance, had simultaneously the characteristics that heat seal strength is high, heat sealability is good.
Embodiment
Embodiment 1: the capacitor film take homo-polypropylene as matrix, the weight part of its constitutive material is: LDPE Low Density Polyethylene 25, homo-polypropylene 35, 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 1, barium sulfate 0.6, nanometer potter's clay 10, catechol 2.2, glycol ether benzoic ether 1.4, phthalic acid dibutyl ester 1.5, calcium stearate 5, vinyltriethoxysilane 1.8 and modification trees ashes 2.8.
The preparation method of the capacitor film take homo-polypropylene as matrix comprises 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 165-185 ℃; 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 175-195 ℃; 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 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): 36; Tensile strength (Mpa): 44; Heat seal strength: 11.6; Flexural strength (Mpa): 54.5; Modulus in flexure (Mpa): 2375; Frictional coefficient: 0.177; Percent thermal shrinkage (%): 0.93-1.05; Glossiness (%): 81-83.
Claims (5)
1. capacitor film take homo-polypropylene as matrix, the weight part that it is characterized in that its constitutive material is: LDPE Low Density Polyethylene 20-30, homo-polypropylene 30-40, 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 0.9-1.1, barium sulfate 0.5-0.7, nanometer potter's clay 9-11, catechol 2.0-2.5, glycol ether benzoic ether 1.2-1.6, phthalic acid dibutyl ester 1.3-1.8, calcium stearate 4-6, vinyltriethoxysilane 1.5-2.0 and modification trees ashes 2.5-3.0.
2. the capacitor film take homo-polypropylene as matrix according to claim 1, is characterized in that the weight part of its constitutive material is: LDPE Low Density Polyethylene 25, homo-polypropylene 35, 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 1, barium sulfate 0.6, nanometer potter's clay 10, catechol 2.2, glycol ether benzoic ether 1.4, phthalic acid dibutyl ester 1.5, calcium stearate 5, vinyltriethoxysilane 1.8 and modification trees ashes 2.8.
3. the preparation method of the capacitor film take homo-polypropylene as matrix 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 165-185 ℃; 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 175-195 ℃; Then traction cutting, last rolling obtains.
4. the capacitor film take homo-polypropylene as matrix 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 take homo-polypropylene as matrix according to claim 1, it is characterized in that: 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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| CN2012104529388A CN103102587A (en) | 2012-11-13 | 2012-11-13 | Capacitor thin film with homo-polypropylene as substrate and preparation method thereof |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103788450A (en) * | 2013-12-20 | 2014-05-14 | 芜湖金鹰机械科技开发有限公司 | Flame-retardant high temperature-resistant capacitor metallized film with high-density polyethylene as substrate and preparation method thereof |
| CN103804785A (en) * | 2013-12-20 | 2014-05-21 | 芜湖金鹰机械科技开发有限公司 | Isotactic polypropylene metalized film for capacitor and preparation method of isotactic polypropylene metalized film |
| CN103804753A (en) * | 2013-12-20 | 2014-05-21 | 芜湖金鹰机械科技开发有限公司 | Ultrathin fracture-resistant metallized film for capacitor and preparation method thereof |
| CN103804787A (en) * | 2013-12-20 | 2014-05-21 | 芜湖金鹰机械科技开发有限公司 | Isotatic polypropylene modified metalized film for capacitor and preparation method thereof |
| CN103804755A (en) * | 2013-12-20 | 2014-05-21 | 芜湖金鹰机械科技开发有限公司 | Composite polyethylene capacitor metallized film with low manufacturing cost and preparation method thereof |
| CN103804791A (en) * | 2013-12-20 | 2014-05-21 | 芜湖金鹰机械科技开发有限公司 | Ultrathin modified isotatic polypropylene capacitor metalized film and preparation method thereof |
| CN103804784A (en) * | 2013-12-20 | 2014-05-21 | 芜湖金鹰机械科技开发有限公司 | Capacitor metallized film with good thermal airtightness and preparation method thereof |
| CN103804752A (en) * | 2013-12-20 | 2014-05-21 | 芜湖金鹰机械科技开发有限公司 | Capacitor metalized film with pressure resistance, high temperature resistance and favorable performance and preparation method of capacitor metalized film |
| CN103834080A (en) * | 2013-12-20 | 2014-06-04 | 芜湖金鹰机械科技开发有限公司 | Low density polyethylene composite metalized film used 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 |
| CN103951887A (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 |
| CN103951880A (en) * | 2014-04-12 | 2014-07-30 | 安徽江威精密制造有限公司 | Breakdown-proof high-performance metallized thin film used for capacitors, and preparation method thereof |
| CN104140561A (en) * | 2014-07-30 | 2014-11-12 | 安徽状元郎电子科技有限公司 | Special packing for compression-resisting and abrasion-resisting capacitor film and preparation method thereof |
| CN104140593A (en) * | 2014-07-30 | 2014-11-12 | 安徽状元郎电子科技有限公司 | Special filler for capacitor film with high heat-conducting property and high strength and preparation method of special filler |
| CN104140565A (en) * | 2014-07-30 | 2014-11-12 | 安徽状元郎电子科技有限公司 | Special filler for capacitor film with high bending strength and preparation method of special filler |
| CN105924785A (en) * | 2016-06-13 | 2016-09-07 | 吴江佳亿电子科技有限公司 | Shell material for liquid crystal display television capacitor and preparation method of shell material |
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| CN114103348A (en) * | 2021-11-22 | 2022-03-01 | 四川大学 | Multilayer composite BOPE capacitor film and preparation method thereof |
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| CN103788450A (en) * | 2013-12-20 | 2014-05-14 | 芜湖金鹰机械科技开发有限公司 | Flame-retardant high temperature-resistant capacitor metallized film with high-density polyethylene as substrate and preparation method thereof |
| CN103804785A (en) * | 2013-12-20 | 2014-05-21 | 芜湖金鹰机械科技开发有限公司 | Isotactic polypropylene metalized film for capacitor and preparation method of isotactic polypropylene metalized film |
| CN103804753A (en) * | 2013-12-20 | 2014-05-21 | 芜湖金鹰机械科技开发有限公司 | Ultrathin fracture-resistant metallized film for capacitor and preparation method thereof |
| CN103804787A (en) * | 2013-12-20 | 2014-05-21 | 芜湖金鹰机械科技开发有限公司 | Isotatic polypropylene modified metalized film for capacitor and preparation method thereof |
| CN103804755A (en) * | 2013-12-20 | 2014-05-21 | 芜湖金鹰机械科技开发有限公司 | Composite polyethylene capacitor metallized film with low manufacturing cost and preparation method thereof |
| CN103804791A (en) * | 2013-12-20 | 2014-05-21 | 芜湖金鹰机械科技开发有限公司 | Ultrathin modified isotatic polypropylene capacitor metalized film and preparation method thereof |
| CN103804784A (en) * | 2013-12-20 | 2014-05-21 | 芜湖金鹰机械科技开发有限公司 | Capacitor metallized film with good thermal airtightness and preparation method thereof |
| CN103804752A (en) * | 2013-12-20 | 2014-05-21 | 芜湖金鹰机械科技开发有限公司 | Capacitor metalized film with pressure resistance, high temperature resistance and favorable performance and preparation method of capacitor metalized film |
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| CN103951887A (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 |
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| CN103951887B (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 |
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| CN104140593A (en) * | 2014-07-30 | 2014-11-12 | 安徽状元郎电子科技有限公司 | Special filler for capacitor film with high heat-conducting property and high strength and preparation method of special filler |
| CN104140565A (en) * | 2014-07-30 | 2014-11-12 | 安徽状元郎电子科技有限公司 | Special filler for capacitor film with high bending strength and preparation method of special filler |
| CN105924785A (en) * | 2016-06-13 | 2016-09-07 | 吴江佳亿电子科技有限公司 | Shell material for liquid crystal display television capacitor and preparation method of shell material |
| CN106084593A (en) * | 2016-06-13 | 2016-11-09 | 吴江佳亿电子科技有限公司 | Capacitor casing material that a kind of thermostability is strong and preparation method thereof |
| CN106084456A (en) * | 2016-06-13 | 2016-11-09 | 吴江佳亿电子科技有限公司 | A kind of high intensity capacitor casing material and preparation method thereof |
| CN114103348A (en) * | 2021-11-22 | 2022-03-01 | 四川大学 | Multilayer composite BOPE capacitor film and preparation method thereof |
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