CN104999540A - Shock-resistant and antistatic high density fiberboard and preparation method thereof - Google Patents
Shock-resistant and antistatic high density fiberboard and preparation method thereof Download PDFInfo
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- CN104999540A CN104999540A CN201510414280.5A CN201510414280A CN104999540A CN 104999540 A CN104999540 A CN 104999540A CN 201510414280 A CN201510414280 A CN 201510414280A CN 104999540 A CN104999540 A CN 104999540A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/04—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N1/00—Pretreatment of moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N1/00—Pretreatment of moulding material
- B27N1/02—Mixing the material with binding agent
- B27N1/0227—Mixing the material with binding agent using rotating stirrers, e.g. the agent being fed through the shaft of the stirrer
- B27N1/0254—Mixing the material with binding agent using rotating stirrers, e.g. the agent being fed through the shaft of the stirrer with means for spraying the agent on the material before it is introduced in the mixer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/002—Manufacture of substantially flat articles, e.g. boards, from particles or fibres characterised by the type of binder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/10—Moulding of mats
- B27N3/12—Moulding of mats from fibres
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L97/00—Compositions of lignin-containing materials
- C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/04—Antistatic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Manufacturing & Machinery (AREA)
- Forests & Forestry (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
The invention discloses a shock-resistant and antistatic high density fiberboard. The shock-resistant and antistatic high density fiberboard is characterized by being prepared by the following raw materials in parts by weight: 42-45 of crop straws, 30-32 of wood leftovers, 5-6 of PVC powder, 4-6 of nanometer zinc powder, a proper amount of sodium hydroxide with a concentration of 2%, 1-2 of glyceryl stearate, 2-2.5 of silane coupling agent kh450, 66-70 of ethanol with a concentration of 95%, 7-8 of waterborne polyurethane adhesive, 1.5-2 of emulsified paraffin, and a proper amount of water; the fiberboard adopts the raw materials with energy conservation and environmental protection; the process is convenient for industrial control; and the produced product is excellent in water resistance, folding resistance and shock resistance, is conductive and antistatic, and is excellent in toughness. The fiberboard can be used as a basal material of a wood composite floor, a door sheet, a separation plate, a packing material, a material for decoration and the like, and also can be used for preparing antistatic floors and tables/chairs in computer rooms.
Description
Technical field
The present invention relates to wood materials deep process technology field, particularly anlistatig high density fiberboard of a kind of shock resistance and preparation method thereof.
Background technology
In recent years, the development of China middle and higher density fiberboard industry is very fast, hardboard originally progressively replace by medium and high density fibre panel.MDF enterprise is very large to the dependence of wood raw material, and wood raw material cost accounts for about 45% of production cost, the wood raw material production having badly influenced fiberboard in short supply.With regard to the requirement that medium and high density fibre panel is produced, be more than 10 years, the regeneration period of bamboo is also at 3-5, and the regeneration period of agricultural crop straw is 1 year or less than 1 year, from the utilization ratio of resource, the stalk of crops was the most favourable.China is large agricultural country, have abundant agricultural straw resource, but at present the utilization rate of China's stalk resource is only 33%, all the other most of stalks are fallen as castoff burning or only as fuel, not only cause the waste of natural resources, and weighting ring environment pollution.Adopt the cheap agronomic crop fibre strong with recyclability to replace wood raw material, become a direction of middle and higher density fiberboard development gradually.But the herbaceous plant fiber taking crops as representative is then short and thin, limits the mechanical strength of turf fibre plate to a certain extent.The content of herbaceous plant stem stalk organic solvent extract is obviously lower than wood raw material, but main component is wax, accompany by a small amount of higher fatty acids, higher alcohol etc., add that grass cane, epidermal leaf cells silicidize degree are very high, wax coat and the dioxide-containing silica on stalk surface are high, be unfavorable for the infiltration of adhesive, result in the gummed of traditional Lauxite to crushed straw aggregate bad.When this just requires to utilize the herbaceous plant fibers such as agricultural crop straw to manufacture high density fiberboard, the traditional adhesive existed in existing technique must be solved and glue together bad, poor water resistance, intensity difference defect.
It is formaldehyde series glue three kinds of Typical Representatives that phenolic resins, Lauxite and melamine resin adehsive stick agent, uses the most distinct issues of three-aldehyde glue to be free formaldehyde release.Three-aldehyde glue series wood-based plate constantly can discharge free formaldehyde, serious harm health in 3-15 before production and products thereof uses.Both at home and abroad the demand of the wood-based panel products such as no-formaldehyde density board is grown to even greater heights.Find in production practices, Aqueous Polyurethane Adhesives etc. do not arise at the historic moment containing the adhesive of formaldehyde, and occupation rate of market is more and more higher, but because price is higher, utilize it will inevitably bring the increase of the production cost of density fiber board as adhesive, but a part of composition can be saved under the prerequisite adopting the raw material such as agricultural crop straw, wood leftover material, so both can not cause the increase of cost, also the product of safety and environmental protection in producing, is worth commercially promoting.
Along with the development of high density fiberboard, be only the demand that intensity, resistance to water have not reached market development far away, this just requires the sheet material constantly developing various performance, to meet the demand in market.
Summary of the invention
The object of this invention is to provide anlistatig high density fiberboard of a kind of shock resistance and preparation method thereof.The present invention to process fiber by certain method is composite afterwards by adding stearine, PVC powder and silane coupler, and can improve the gumminess of fiber, intensity, impact resistance, antistatic, the product made has excellent performance.
In order to realize object of the present invention, the present invention is by following scheme implementation:
The anlistatig high density fiberboard of a kind of shock resistance, is made up of the raw material of following weight portion: ethanol 66-70, Aqueous Polyurethane Adhesives 7-8 that the Sodium hydroxide q. s that agricultural crop straw 42-45, wood leftover material 30-32, PVC powder 5-6, nano zinc powder 4-6, concentration are 2%, stearine 1-2, silane coupler kh450 2-2.5, concentration are 95%, emulsified wax 1.5-2, water are appropriate;
The anlistatig high density fiberboard of a kind of shock resistance of the present invention, be made up of following concrete steps:
(1) putting into baking oven after being cleaned by agricultural crop straw, to be dried to water content be 20%-30%, cold go after be cut into the segment of 3-4 centimetre, then the concentration adding 3 times amount is the NaOH of 2%, filter after stirring 2-3 hour with the speed of 60 revs/min, get filter residue and be washed to neutrality, obtain crop branch fiber;
(2) wood leftover material is sent in wood chipper be cut into irregular spile, under 155-165 DEG C of condition, with saturated vapor (pressure is 0.75MPa), boiling is carried out to wood chip, send in defibrator after wood chip is softening, at the same temperature, under the mixing speed effect of 1200-1400 rev/min, wear into wood-fibred, the crop branch fiber obtained with step (1) is mixed to get composite fibre;
(3) PVC powder, nano zinc powder, stearine and silane coupler kh450 are put into ball mill ball milling and after 30-40 minute, join the ethanol that concentration is 95%, stir under normal temperature after forming suspension and composite fibre is soaked wherein, pull out after 20-30 minute, put in an oven after drying, dry 30 minutes under the condition of 85-95 DEG C, take out the composite fibre obtaining surface modification after it cools naturally;
(4) mixed slurry is made after first Aqueous Polyurethane Adhesives and emulsified wax being stirred stand-by; The composite fibre of surface modification step (3) obtained adds the mixed slurry of half amount after mixing agitator is by fabric thrashing, stir, then the material after mixing thoroughly is sent in spray mixer, continue to spray into second half mixed slurry, obtain the composite fibre before hot pressing;
(5) composite fibre before hot pressing is mated formation equably in the slab meeting technological requirement, control the thickness of fiberboard, first precompressed on vulcanizing press, then through continuous rolling precompressed, obtain preformed slab, again preformed slab is sent into hot press and carry out that hot-forming (control hot pressing temperature is 180-210 DEG C, and briquetting pressure is 40kg/cm
2, the dwell time is 3-4 minute) namely obtain product of the present invention.
The invention has the beneficial effects as follows: the present invention adopts a large amount of agricultural crop straws and wood leftover material to substitute timber, a large amount of timber resources can be saved like this, by certain treatment process, extract fiber, novelty PVC powder, stearine, nano zinc powder etc. are processed by the composite rear fiber to mixing of certain mode with silane coupler, can the antistatic behaviour of fortifying fibre, gain in strength and impact resistance; Again the mixing such as Aqueous Polyurethane Adhesives, emulsified wax is carried out applying glue to the composite fibre after process at twice, blend glue stuff is evenly distributed between fiber and fiber and fiber surface, the product waterproof moisture-proof effect made after such process is remarkable, prevent fiberboard cracking, warpage, increase the service life.
The present invention adopts the raw material of energy-conserving and environment-protective, and technique is convenient to Industry Control, and the product good waterproof performance made, folding, good impact resistance, conduction are antistatic, good toughness.Can be used as the base material of wooden composite floor, door-plate, dividing plate, packaging material, decorations material etc., also can as the preparation of computer room antistatic floor, tables and chairs.
Specific embodiments
Below by instantiation, the present invention is described in detail.
The anlistatig high density fiberboard of a kind of shock resistance, is made up of the raw material of following weight portion (kilogram): the ethanol 66 that the Sodium hydroxide q. s that agricultural crop straw 42, wood leftover material 30, PVC powder 5, nano zinc powder 4, concentration are 2%, stearine 1, silane coupler kh450 2, concentration are 95%, Aqueous Polyurethane Adhesives 7, emulsified wax 1.5, water are appropriate;
The anlistatig high density fiberboard of a kind of shock resistance of the present invention, be made up of following concrete steps:
(1) putting into baking oven after being cleaned by agricultural crop straw, to be dried to water content be 20%-30%, cold go after be cut into the segment of 3-4 centimetre, then the concentration adding 3 times amount is the NaOH of 2%, filter after stirring 2 hours with the speed of 60 revs/min, get filter residue and be washed to neutrality, obtain crop branch fiber;
(2) wood leftover material is sent in wood chipper be cut into irregular spile, under 155-165 DEG C of condition, with saturated vapor (pressure is 0.75MPa), boiling is carried out to wood chip, send in defibrator after wood chip is softening, at the same temperature, under the mixing speed effect of 1200 revs/min, wear into wood-fibred, the crop branch fiber obtained with step (1) is mixed to get composite fibre;
(3) PVC powder, nano zinc powder, stearine and silane coupler kh450 are put into ball mill ball milling and after 30-40 minute, join the ethanol that concentration is 95%, stir under normal temperature after forming suspension and composite fibre is soaked wherein, pull out after 20 minutes, put in an oven after drying, dry 30 minutes under the condition of 85-95 DEG C, take out the composite fibre obtaining surface modification after it cools naturally;
(4) mixed slurry is made after first Aqueous Polyurethane Adhesives and emulsified wax being stirred stand-by; The composite fibre of surface modification step (3) obtained adds the mixed slurry of half amount after mixing agitator is by fabric thrashing, stir, then the material after mixing thoroughly is sent in spray mixer, continue to spray into second half mixed slurry, obtain the composite fibre before hot pressing;
(5) composite fibre before hot pressing is mated formation equably in the slab meeting technological requirement, control the thickness of fiberboard, first precompressed on vulcanizing press, then through continuous rolling precompressed, obtain preformed slab, again preformed slab is sent into hot press and carry out that hot-forming (control hot pressing temperature is 180-210 DEG C, and briquetting pressure is 40kg/cm
2, the dwell time is 3 minutes) namely obtain product of the present invention.
Thickness of the present invention is 12mm, the product after hot pressing cools at normal temperatures, saw and cut, deposit 2 days after, after testing, the performance test results of product of the present invention meets: density is 0.952g/cm
3, MOR is 36.84MPa, and internal bond strength is 0.868 MPa, and elastic modelling quantity is 3408MPa, and thickness swelling rate is 11.34%, and burst size of methanal reaches E0 level environmental protection standard.
Claims (2)
1. the anlistatig high density fiberboard of shock resistance, it is characterized in that, be made up of the raw material of following weight portion: ethanol 66-70, Aqueous Polyurethane Adhesives 7-8 that the Sodium hydroxide q. s that agricultural crop straw 42-45, wood leftover material 30-32, PVC powder 5-6, nano zinc powder 4-6, concentration are 2%, stearine 1-2, silane coupler kh450 2-2.5, concentration are 95%, emulsified wax 1.5-2, water are appropriate.
2. the anlistatig high density fiberboard of a kind of shock resistance according to claim 1, is characterized in that, be made up of following concrete steps:
(1) putting into baking oven after being cleaned by agricultural crop straw, to be dried to water content be 20%-30%, cold go after be cut into the segment of 3-4 centimetre, then the concentration adding 3 times amount is the NaOH of 2%, filter after stirring 2-3 hour with the speed of 60 revs/min, get filter residue and be washed to neutrality, obtain crop branch fiber;
(2) wood leftover material is sent in wood chipper be cut into irregular spile, under 155-165 DEG C of condition, with saturated vapor (pressure is 0.75MPa), boiling is carried out to wood chip, send in defibrator after wood chip is softening, at the same temperature, under the mixing speed effect of 1200-1400 rev/min, wear into wood-fibred, the crop branch fiber obtained with step (1) is mixed to get composite fibre;
(3) PVC powder, nano zinc powder, stearine and silane coupler kh450 are put into ball mill ball milling and after 30-40 minute, join the ethanol that concentration is 95%, stir under normal temperature after forming suspension and composite fibre is soaked wherein, pull out after 20-30 minute, put in an oven after drying, dry 30 minutes under the condition of 85-95 DEG C, take out the composite fibre obtaining surface modification after it cools naturally;
(4) mixed slurry is made after first Aqueous Polyurethane Adhesives and emulsified wax being stirred stand-by; The composite fibre of surface modification step (3) obtained adds the mixed slurry of half amount after mixing agitator is by fabric thrashing, stir, then the material after mixing thoroughly is sent in spray mixer, continue to spray into second half mixed slurry, obtain the composite fibre before hot pressing;
(5) composite fibre before hot pressing is mated formation equably in the slab meeting technological requirement, control the thickness of fiberboard, first precompressed on vulcanizing press, then through continuous rolling precompressed, obtain preformed slab, again preformed slab is sent into hot press and carry out that hot-forming (control hot pressing temperature is 180-210 DEG C, and briquetting pressure is 40kg/cm
2, the dwell time is 3-4 minute) namely obtain product of the present invention.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510414280.5A CN104999540A (en) | 2015-07-15 | 2015-07-15 | Shock-resistant and antistatic high density fiberboard and preparation method thereof |
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| CN201510414280.5A CN104999540A (en) | 2015-07-15 | 2015-07-15 | Shock-resistant and antistatic high density fiberboard and preparation method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105754363A (en) * | 2016-03-15 | 2016-07-13 | 南通长城装饰木制品制造有限公司 | Fiber wood with formaldehyde purification function and production method thereof |
| CN105820461A (en) * | 2016-04-15 | 2016-08-03 | 上海福助工业有限公司 | Dust-resistant high-toughness thin-film material for agriculture |
| CN106426495A (en) * | 2016-11-14 | 2017-02-22 | 北华大学 | Manufacture of diatomite and conducting material composite antistatic environment-friendly agricultural and forestry residue fiberboard |
| CN106633971A (en) * | 2016-09-22 | 2017-05-10 | 苏州佰思科节能环保科技有限公司 | Waterproof anti-static high-density environment-friendly fiber board and preparation method thereof |
| CN107443534A (en) * | 2017-08-04 | 2017-12-08 | 广州市康诺装饰材料有限公司 | A kind of high-density plate and preparation method thereof |
| CN108724420A (en) * | 2016-09-22 | 2018-11-02 | 长泰惠龙新材料科技有限公司 | A kind of preparation method of environment protection pressed-fibre board |
| CN109111751A (en) * | 2018-07-03 | 2019-01-01 | 定远县嘉恒木业有限公司 | A kind of waterproof fibre plate |
| CN109438966A (en) * | 2018-10-29 | 2019-03-08 | 浙江盛瑞环保科技有限公司 | A kind of high-strength composite packaging material and preparation method thereof |
| CN115316714A (en) * | 2022-08-26 | 2022-11-11 | 深圳市赛尔美电子科技有限公司 | Electronic cigarette vaporizer and preparation method thereof, and electronic cigarette vaporizer |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105754363A (en) * | 2016-03-15 | 2016-07-13 | 南通长城装饰木制品制造有限公司 | Fiber wood with formaldehyde purification function and production method thereof |
| CN105820461A (en) * | 2016-04-15 | 2016-08-03 | 上海福助工业有限公司 | Dust-resistant high-toughness thin-film material for agriculture |
| CN106633971A (en) * | 2016-09-22 | 2017-05-10 | 苏州佰思科节能环保科技有限公司 | Waterproof anti-static high-density environment-friendly fiber board and preparation method thereof |
| CN108724420A (en) * | 2016-09-22 | 2018-11-02 | 长泰惠龙新材料科技有限公司 | A kind of preparation method of environment protection pressed-fibre board |
| CN106426495A (en) * | 2016-11-14 | 2017-02-22 | 北华大学 | Manufacture of diatomite and conducting material composite antistatic environment-friendly agricultural and forestry residue fiberboard |
| CN106426495B (en) * | 2016-11-14 | 2018-07-31 | 北华大学 | Diatomite conductive material composite anti-static environmental protection forest and agricultural biomass fiberboard manufactures |
| CN107443534A (en) * | 2017-08-04 | 2017-12-08 | 广州市康诺装饰材料有限公司 | A kind of high-density plate and preparation method thereof |
| CN109111751A (en) * | 2018-07-03 | 2019-01-01 | 定远县嘉恒木业有限公司 | A kind of waterproof fibre plate |
| CN109438966A (en) * | 2018-10-29 | 2019-03-08 | 浙江盛瑞环保科技有限公司 | A kind of high-strength composite packaging material and preparation method thereof |
| CN109438966B (en) * | 2018-10-29 | 2021-08-27 | 叶友岳 | High-strength composite packaging material and preparation method thereof |
| CN115316714A (en) * | 2022-08-26 | 2022-11-11 | 深圳市赛尔美电子科技有限公司 | Electronic cigarette vaporizer and preparation method thereof, and electronic cigarette vaporizer |
| CN115316714B (en) * | 2022-08-26 | 2025-02-21 | 深圳市赛尔美电子科技有限公司 | Electronic cigarette atomizer core and preparation method thereof and electronic cigarette atomizer |
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Application publication date: 20151028 |