CN102146632B - AN-VDC (acrylonitrile-vinylidene chloride) copolymer fiber used for battery plates and production method thereof - Google Patents
AN-VDC (acrylonitrile-vinylidene chloride) copolymer fiber used for battery plates and production method thereof Download PDFInfo
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- CN102146632B CN102146632B CN201110046981XA CN201110046981A CN102146632B CN 102146632 B CN102146632 B CN 102146632B CN 201110046981X A CN201110046981X A CN 201110046981XA CN 201110046981 A CN201110046981 A CN 201110046981A CN 102146632 B CN102146632 B CN 102146632B
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention discloses an AN-VDC (acrylonitrile-vinylidene chloride) copolymer fiber used for battery plates and a production method thereof. Polydimethyl siloxane is doped in the AN-VDC copolymer fiber; and in the production method, only one pass of oiling process is performed on fiber bundles after drafting, the fiber bundles are treated by polydimethyl siloxane emulsion and dried, and then the fiber bundles directly enter a cutting process. The invention also discloses a novel battery plate in which short cut fiber formed by cutting the AN-VDC copolymer fiber is added. According to the production method of the AN-VDC copolymer fiber disclosed by the invention, the traditional process flow is improved, and polydimethyl siloxane is doped into the produced AN-VDC copolymer fiber, so that the crease resistance, dispersibility and anti-sag property are improved, and the AN-VDC copolymer fiber can be cut into short cut fibers easily. Because the short cut fibers formed by cutting the AN-VDC copolymer fiber are used as an addition material to the battery plate disclosed by the invention, the battery plate has the advantages of high strength, shock resistance and long service life, and can be applied to various lead-acid batteries.
Description
Technical field:
The present invention relates to a kind of polyacrylic and polyester fiber, relate in particular to a kind of for accumulator plate as the polyacrylic and polyester fiber that adds material and its production method.
Background technology:
Both at home and abroad most widely used pole plate is grid type plate in the battery, and this pole plate is to stir into paste by mixing of materials such as lead powder, sulfuric acid, water, additives, is coated on the grid that alloy casts to make.Easily come off owing to adhesion between the lead plaster itself is less, therefore, the general superbhort fiber that adds is reinforced a cementation to rise in lead plaster, increases pole plate intensity with this, prevents that the active material on the pole plate from coming off, the service life of prolongation battery.At present, the fiber that adds in accumulator plate both at home and abroad mainly is polyester fiber and polypropylene fibre etc., yet these fibers are owing to being subjected to the restriction of performance own, the shortcoming that all have poor durability, easily wears out, after long-time the use, active material on the electrode pad very easily comes off, and has shortened the service life of battery, and its life-span only is about 2 years usually.
The chemical constitution of polyacrylic and polyester fiber is to be formed by acrylonitrile monemer and vinylidene copolymerization, and it has fabulous resistance to acids and bases, ABRASION RESISTANCE and good extensibility, is the splendid interpolation material that prevents the pole plate that active material comes off for making.Conventional polyacrylic and polyester fiber is to adopt a step wet spinning technology to produce, its technical process is: polymerization stoste is sprayed silk in spinning machine after, through preliminary draft, washing, drawing-off, oil together, the operations such as dry, two roads oil, curling, cut-out, packing make finished fiber.The fiber of producing with the method mainly is applicable to field of textiles: at first, in order to satisfy the demand of textile process, fiber carries out frictional force and the electrostatic effect that twice oil to adjust fiber in process of production, wherein oil is softener together, main component is alkyl phosphate salt, make fiber become more level and smooth, soft by oiling, have good feel; Secondly, for increasing the cohesive force of fiber, make it to possess better spinnability, flexibility, also must carry out curling to fiber in the production process; Again, textile fiber is cut into the medium-length fibre that length is 28～120mm usually in cutting off operation.
But, the fiber of battery that is used for making accumulator plate interpolation material is adding the superbhort fiber that must be cut into man-hour below the length 6mm, usually shearing length only is 1-3mm, and conventional weaving with polyacrylic and polyester fiber owing to oiling with curling operation through two roads, itself is too soft, between poor, the fiber of fiber dispersion the phenomenon that mutual conglomeration become ball top can occur, thereby be difficult to the interpolation material as accumulator plate when cutting into superbhort fiber.
Summary of the invention:
Technical problem to be solved by this invention is to overcome too softness of conventional polyacrylic and polyester fiber, be cut to bad dispersibility behind the superbhort fiber, can't add as accumulator plate the deficiency of material, a kind of polyacrylic and polyester fiber for battery pole plates and production method thereof are provided, this fibrous inside is impregnated with dimethyl silicone polymer, thereby improve the anti-wrinkling property of fiber, make fiber become more strong, be easy to cut into superbhort fiber, and have good dispersiveness, become the good interpolation material of making accumulator plate.
The present invention simultaneously technical problem to be solved is to improve the production technology of existing conventional polyacrylic and polyester fiber, a kind of new production method of making above-mentioned polyacrylic and polyester fiber for battery pole plates is provided, its kind by changing oil agent, save the approach such as curling operation and change the performance of fiber, thereby make the polyacrylic and polyester fiber of producing to reach better the instructions for use of accumulator plate.
Another technical problem to be solved by this invention is the shortcoming that overcomes short, intensity difference of accumulator plate life-span of fibers such as adding polyester, polypropylene, a kind of novel storage battery pole plate is provided, it is take the described superbhort fiber that is cut into for the polyacrylic and polyester fiber of battery pole plates as adding material, thereby possesses the advantage of high, the shock-resistant and long service life of intensity.
In order to solve the problems of the technologies described above, the technical scheme that the present invention takes is:
A kind of polyacrylic and polyester fiber for battery pole plates, its inside is impregnated with dimethyl silicone polymer.
A kind of production method of making described polyacrylic and polyester fiber for battery pole plates includes drawing-off, oils, dry and cut off operation, and the fibre bundle after the drawing-off only namely carries out drying through one oiling treatment, and fibre bundle after drying directly enters the cut-out operation; Adopt aqueous emulsion of dimethyl polysiloxane fluid that fibre bundle is processed in the above-mentioned operation that oils, the operation sequence of its operation that oils is as follows:
(1) aqueous emulsion of dimethyl polysiloxane fluid is extracted in the storage tank, then adding desalted water, to be mixed with the dimethyl silicone polymer weight content ratio be 30% emulsion;
(2) adding weight content ratio in the storage tank is 36% acetic acid solution, adjusts the pH value to 4 of emulsion～6;
(3) emulsion for preparing is sent into finishing bathtray, make fibre bundle pass through emulsion in the finishing bathtray.
A kind of take described polyacrylic and polyester fiber for battery pole plates as adding the accumulator plate of material, be arranged in the battery, be added with the superbhort fiber that is cut into for the polyacrylic and polyester fiber of battery pole plates with described in this accumulator plate, the length of this superbhort fiber is 1～6mm.
Compare with existing conventional polyacrylic and polyester fiber, the inside of the polyacrylic and polyester fiber for battery pole plates of the present invention is impregnated with dimethyl silicone polymer, and this chemistry emulsion is a kind of have high molecular, anlistatig polymer.In the fiber drying process, a part of organosilicon molecule in the emulsion has entered fibrous inside and the large molecule of fiber and has formed crosslinked or carry out voluntarily crosslinked, limit the macromolecular motion of fiber, thereby increased the ability that the large molecule of fiber or segment are subjected to return to after the External Force Acting distortion origin-location; Another part organosilicon molecule then is attached to fiber surface soundly, forms the high polymer elastic film, thereby has improved fibrous elasticity, makes it to become well-pressed.Therefore, fiber will become strong after this aqueous emulsion of dimethyl polysiloxane fluid is processed, improved the wrinkle resistance of self, can be cut off into the following superbhort fiber of 6mm at an easy rate, and the superbhort fiber good dispersion that is cut into, have without doubling, without twine, without conglomeration, the characteristics such as be uniformly dispersed, thereby become the good interpolation material of making accumulator plate.
Manufacturing of the present invention be used for the production method of production method and conventional polyacrylic and polyester fiber of polyacrylic and polyester fiber of battery pole plates different be, changed the kind of oil in the production process operation and finish thereof, original twice are oiled to change into together oil, replace original softener with aqueous emulsion of dimethyl polysiloxane fluid, improve baking temperature simultaneously so that dimethyl silicone polymer infiltrated fiber better, fibre bundle is after drying in addition, and directly the superbhort fiber finished product is made in cut-out without curling operation.Owing to having omitted in order to improve the treatment process of fiber softening and spinnability, used again in order to improve the New Emulsion of the ultrashort cut-out performance of wrinkle resistance, anti sag property and improvement, therefore use that polyacrylic and polyester fiber that the method for the invention produces is not only strong is convenient to be cut into superbhort fiber, and the superbhort fiber that cuts into have without doubling, without twine, without conglomeration and the characteristics such as be uniformly dispersed, can reach better the instructions for use that accumulator plate adds material.
Because the chemical stability of the polyacrylic and polyester fiber for battery pole plates of the present invention is good, have good resistance to acids and bases, ABRASION RESISTANCE and extensibility, therefore added by the active material difficult drop-off on the novel storage battery pole plate of its superbhort fiber that is cut into, the intensity of electrode pad is higher, also more shock-resistant, the life-span is also longer.Result of the test shows, after adding described polyacrylic and polyester fiber for battery pole plates, can prolong 4～5 years the service life of battery.The prolongation of the life of storage battery has also reduced discarded lead-acid accumulator to the pollution of environment simultaneously, and has improved the market competitiveness of enterprise product not only for the user has reduced use cost.
Description of drawings:
Fig. 1 is the flow sheet of the polyacrylic and polyester fiber for battery pole plates of the present invention.
The specific embodiment:
The invention will be further described below in conjunction with specific embodiments and the drawings.
See also the flow sheet of Fig. 1 polyacrylic and polyester fiber for battery pole plates of the present invention.The conventional Vinyon N polymer fluid that is formed by acrylonitrile monemer, vinylidene and other chemical addition agent copolymerization is transported to spinning process, pass through preliminary draft, washing and drafting process from spinnerets as-spun fibre tow out, increased tensile strength of fiber, entered again the operation that oils and adopt aqueous emulsion of dimethyl polysiloxane fluid that fibre bundle is processed.The oil technological operation program of operation of the preparation of this aqueous emulsion of dimethyl polysiloxane fluid and fibre bundle is as follows:
(1) the barreled aqueous emulsion of dimethyl polysiloxane fluid is extracted in the storage tank, then adding desalted water, to be mixed with the dimethyl silicone polymer weight content ratio be 30% emulsion, and this barreled aqueous emulsion of dimethyl polysiloxane fluid is the novel finish DOW CORNING 1111 emulsion (English names: 1111EMULSION) by the supply of U.S. DOW CORNING company;
(2) start agitator running 30 minutes, add simultaneously weight content ratio in the storage tank and be 36% acetic acid solution, adjust the pH value to 4 of emulsion～6;
(3) start emulsion pumps, the emulsion for preparing is sent into finishing bathtray, conveying capacity is 48 l/hs, makes fibre bundle pass through emulsion in the finishing bathtray.
Fibre bundle after the operation that oils enters drying process, because the characteristic of aqueous emulsion of dimethyl polysiloxane fluid, the baking temperature of fiber must reset in the drying process, makes its baking temperature that is higher than conventional polyacrylic and polyester fiber, so that dimethyl silicone polymer can abundant infiltrated fiber under the condition of high temperature.Each regional temperature setting of drying machine is set to: 135～140 ℃ in 1 district, 145～150 ℃ in 2 districts, 160～170 ℃ in 3 districts, 160～170 ℃ in 4 districts, 150～155 ℃ in 5 districts, 130～140 ℃ in 6 districts.
Fibre bundle no longer carries out curling after drying, directly enters cutting machine, cuts into the superbhort fiber of 1～6mm, and shearing length only is 1-3mm usually.
Manufacturing of the present invention is used for the production method of the polyacrylic and polyester fiber of battery pole plates, except above-mentionedly oil, the technological parameters such as the temperature of other each production process the drying process, flow, speed still routinely polyacrylic and polyester fiber production arrange and operate.
Adopt three production method embodiment of different technical parameters as follows: embodiment 1-in same above-mentioned technological operation flow process,
Operation oils: pH is adjusted to 4 in the emulsion preparation;
Drying process: each regional temperature setting of drying machine is set to: 135 ℃ in 1 district, 148 ℃ in 2 districts, 170 ℃ in 3 districts, 170 ℃ in 4 districts, 152 ℃ in 5 districts, 130 ℃ in 6 districts.
Embodiment 2-in same above-mentioned technological operation flow process,
Operation oils: pH is adjusted to 5 in the emulsion preparation;
Drying process: each regional temperature setting of drying machine is set to: 138 ℃ in 1 district, 150 ℃ in 2 districts, 160 ℃ in 3 districts, 160 ℃ in 4 districts, 155 ℃ in 5 districts, 135 ℃ in 6 districts.
Embodiment 3-in same above-mentioned technological operation flow process,
Operation oils: pH is adjusted to 6 in the emulsion preparation;
Drying process: each regional temperature setting of drying machine is set to: 140 ℃ in 1 district, 145 ℃ in 2 districts, 165 ℃ in 3 districts, 165 ℃ in 4 districts, 150 ℃ in 5 districts, 140 ℃ in 6 districts.
In each embodiment of described production method, the technological parameter of other production process is still identical with conventional polyacrylic and polyester fiber production, and its technic index is as follows:
Spinning measuring revolution speed (rpm): 45
The spinning bath temperature (℃): 10～15
Spinning bath concentration (%): 50～55
Spinning bath flow (L/H): 4500
Collecting drum speed (m/min): 7.9
Preliminary draft speed (m/min): 37.5
The preliminary draft temperature (℃): 90～97
Preliminary draft flow (L/H): 1500
Washing speed (m/min): 37.5
Washing flow (L/H): 2000
Draft speed (m/min): 51
Drawing temperature (℃): 90-98
Drawing-off flow (L/H): 1000
Aqueous emulsion of dimethyl polysiloxane fluid concentration (%) in the finishing bathtray: 6
Drying machine speed (m/min): 35
The polyacrylic and polyester fiber for battery pole plates of the present invention according to the aforementioned production method manufacturing, its inside is impregnated with dimethyl silicone polymer, therefore improved the wrinkle resistance of self, it is very strong that fibre bundle can become, can easily be cut off into the following superbhort fiber of 6mm, and the superbhort fiber good dispersion that is cut into without doubling, without winding, without the generation of the phenomenons such as conglomeration balling-up, thereby satisfies the needs of making accumulator plate fully.
Owing to not only possessing good resistance to acids and bases, ABRASION RESISTANCE and the extensibility of conventional polyacrylic and polyester fiber, but also improved wrinkle resistance, anti sag property and improved ultrashort cut-out performance by improving production method, polyacrylic and polyester fiber for battery pole plates of the present invention can be applied to make the battery terminal pole plate, becomes good pole plate and adds material.Its specific practice is first the tow of described polyacrylic and polyester fiber for battery pole plates to be cut into superbhort fiber, the length of this superbhort fiber is determined in 1～6mm scope according to the performance requirement of pole plate, shearing length only is 1-3mm preferably, then stir into lead plaster with mixing of materials such as lead powder, be coated in again and make the novel storage battery pole plate on the alloy grid.Not only pole plate is played the reinforcing cementation with the polyacrylic and polyester fiber for battery pole plates of the present invention as adding material, and improved the corrosion resistance of pole plate, prolonged the life-span of pole plate.Of the present inventionly compare with the traditional storage battery pole plate of the fibers such as interpolation polyester and polypropylene take the polyacrylic and polyester fiber that is used for battery pole plates as the accumulator plate that adds material, active material difficult drop-off on the pole plate, has advantages of high, the shock-resistant and long service life of intensity, therefore, the battery made from accumulator plate of the present invention can prolong 4～5 years than the life-span of traditional storage battery.In current market development, because increasingly competitive, therefore reduce product cost, improving the quality of products becomes the most important thing of enterprise work, adopt the prolongation of service lifetime of accumulator of technology manufacturing of the present invention not only for the user has reduced use cost, also reduced the pollution of scrapped batteries to environment simultaneously.
Claims (5)
1. polyacrylic and polyester fiber that is used for battery pole plates, it is characterized in that: fibrous inside is impregnated with dimethyl silicone polymer; The production method of this polyacrylic and polyester fiber includes drawing-off, oils, dry and cut off operation, fibre bundle after the drawing-off only namely carries out drying through one oiling treatment, fibre bundle after drying directly enters the cut-out operation, adopts aqueous emulsion of dimethyl polysiloxane fluid that fibre bundle is processed in the above-mentioned operation that oils; The operation sequence of the described operation that oils is as follows:
(1) aqueous emulsion of dimethyl polysiloxane fluid is extracted in the storage tank, then adding desalted water, to be mixed with the dimethyl silicone polymer weight content ratio be 30% emulsion;
(2) adding weight content ratio in the storage tank is 36% acetic acid solution, adjusts the pH value to 4 of emulsion～6;
(3) emulsion for preparing is sent into finishing bathtray, make fibre bundle pass through emulsion in the finishing bathtray.
2. production method of making the polyacrylic and polyester fiber for battery pole plates claimed in claim 1, include drawing-off, oil, dry and cut off operation, it is characterized in that: the fibre bundle after the drawing-off only namely carries out drying through one oiling treatment, and fibre bundle after drying directly enters the cut-out operation; In the above-mentioned operation that oils, adopt aqueous emulsion of dimethyl polysiloxane fluid that fibre bundle is processed.
3. manufacturing according to claim 2 is used for the production method of the polyacrylic and polyester fiber of battery pole plates, and it is characterized in that: the operation sequence of the described operation that oils is as follows:
(1) aqueous emulsion of dimethyl polysiloxane fluid is extracted in the storage tank, then adding desalted water, to be mixed with the dimethyl silicone polymer weight content ratio be 30% emulsion;
(2) adding weight content ratio in the storage tank is 36% acetic acid solution, adjusts the pH value to 4 of emulsion～6;
(3) emulsion for preparing is sent into finishing bathtray, make fibre bundle pass through emulsion in the finishing bathtray.
4. one kind take the described polyacrylic and polyester fiber for battery pole plates of claim 1 as adding the accumulator plate of material, be arranged in the battery, it is characterized in that: be added with the superbhort fiber that is cut into for the polyacrylic and polyester fiber of battery pole plates with described in the described accumulator plate.
5. accumulator plate according to claim 4, it is characterized in that: the length of described superbhort fiber is 1～6mm.
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| CN201110046981XA CN102146632B (en) | 2011-02-25 | 2011-02-25 | AN-VDC (acrylonitrile-vinylidene chloride) copolymer fiber used for battery plates and production method thereof |
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| CN201110046981XA CN102146632B (en) | 2011-02-25 | 2011-02-25 | AN-VDC (acrylonitrile-vinylidene chloride) copolymer fiber used for battery plates and production method thereof |
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| CN102146632B true CN102146632B (en) | 2013-01-09 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101029423A (en) * | 2007-03-09 | 2007-09-05 | 抚顺惠抚阻燃纤维有限公司 | Vinyon fiber of battery and its production and use |
| CN101597809A (en) * | 2009-03-25 | 2009-12-09 | 河南瑞贝卡发制品股份有限公司 | A kind of process for producing multifunctional nitrilon modified fiber |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7901832B2 (en) * | 2008-05-13 | 2011-03-08 | GM Global Technology Operations LLC | Bipolar plate with inlet and outlet water management features |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101029423A (en) * | 2007-03-09 | 2007-09-05 | 抚顺惠抚阻燃纤维有限公司 | Vinyon fiber of battery and its production and use |
| CN101597809A (en) * | 2009-03-25 | 2009-12-09 | 河南瑞贝卡发制品股份有限公司 | A kind of process for producing multifunctional nitrilon modified fiber |
Non-Patent Citations (1)
| Title |
|---|
| 刘燕军等.二甲基硅油及其表面活性剂在化纤生产中的应用.《合成纤维工业》.2002,第25卷(第1期),第40-42页. * |
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