CN109181239A - A kind of antibacterial antistatic PBT composite and preparation method thereof - Google Patents
A kind of antibacterial antistatic PBT composite and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
- C08K3/045—Fullerenes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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- C08K9/00—Use of pretreated ingredients
- C08K9/10—Encapsulated ingredients
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/12—Adsorbed ingredients, e.g. ingredients on carriers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/017—Additives being an antistatic agent
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- 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
Abstract
Composed of the following components by weight the present invention relates to a kind of antibacterial antistatic PBT composite and preparation method thereof: PBT is 80 parts -100 parts；Antibacterial agent is 4 parts -6 parts；Modified fullerenes are 4 parts -8 parts；Antioxidant is 0.1 part -0.5 part；The antibacterial agent is the loaded Cu that surface coats MgO2+Nano-titanium dioxide.The technical program has synthesized a kind of loaded Cu first2+Nano-titanium dioxide, then using MgO to loaded Cu2+Nano-titanium dioxide carry out surface cladding, eventually formed a kind of novel antibacterial agent；And by the use of modified fullerenes, the antistatic property of PBT composite is improved.
Description
Technical field
The invention belongs to technical field of polymer materials, a kind of antibacterial antistatic PBT composite and its system are particularly related to
Preparation Method.
Background technique
Polybutylene terephthalate (PBT) (PBT) have it is light, nontoxic, odorless, chemical stability is good, and at normal temperature not
It is dissolved in common solvent, the advantages that water imbibition is small.Although the comprehensive performance of PBT is very excellent, the anti-microbial property of PS and resist it is quiet
Electrical property is general, and which has limited the application ranges of PBT composite.
Given this kind of anti-microbial property and the excellent PBT composite wood of antistatic property is made in reason, the technical program innovation
Material, makes up the deficiency of existing PBT composite, and this PBT material not yet sees report so far, this is for extending PBT composite wood
The application of material has very important realistic meaning.
Summary of the invention
The object of the present invention is to provide a kind of antibacterial antistatic PBT composites and preparation method thereof, to solve the anti-of PBT
The problem of bacterium performance and antistatic property can meet certain specific needs.
The present invention is achieved by the following technical solutions:
A kind of antibacterial antistatic PBT composite, composed of the following components by weight:
The antibacterial agent is the loaded Cu that surface coats MgO2+Nano-titanium dioxide.
The preparation method of the antibacterial agent, comprising the following steps:
(1) a certain amount of nano-titanium dioxide, deionized water and copper sulphate are weighed, is added them into reaction vessels,
Ultrasonic disperse 1-3h forms solution A with sulfuric acid or sodium hydrate regulator solution PH=7；
(2) solution A is put in after constant temperature is stirred to react 12-20h in 60-80 DEG C of water-bath, stands cooling, carried out
Filter, washing, drying, obtain loaded Cu2+Nano-titanium dioxide B；
(3) a certain amount of loaded Cu is weighed2+Nano-titanium dioxide B, NaHCO3And deionized water, ultrasonic disperse 2-4h,
Form solution C；
(4) solution C is put in after constant temperature is stirred to react 8-10h in 50-70 DEG C of water-bath, is slowly added dropwise a certain amount of
MgSO4 solution, is stirred to react 1-3h after the completion, with sulfuric acid or sodium hydrate regulator solution PH=7, forms solution D；
(5) solution D cleaned, filtered, dried, 600-700 DEG C of roasting 2-4h obtains antibacterial agent.
The mass ratio of nano-titanium dioxide, deionized water and copper sulphate is (30-50): (100-160) in step (1):
(20-30)。
Loaded Cu in step (3)2+Nano-titanium dioxide B, NaHCO3And the mass ratio of deionized water is (60-80):
(10-20): (180-240).
The mass ratio of solution C and MgSO4 solution is (80-100): (10-16) in step (4).
The preparation method of the modified fullerenes, comprising the following steps:
(1) a certain amount of fullerene and ethanol solution are weighed；
(2) fullerene, ethanol solution are placed in reaction vessels, are put in ultrasonic wave pond, ultrasonic disperse 1-3h, after taking-up
Dry 4-6h, obtains modified fullerenes in 60-80 DEG C of baking oven.
The mass ratio of fullerene and ethanol solution is (20-30): (180-240) in step (1).
The antioxidant is three (2,4- di-t-butyl) phenyl-phosphites, four [β-(3,5- di-tert-butyl-hydroxy phenyl)
Propionic acid] pentaerythritol ester or 1,3,5- trimethyls -2,4, one of 6- (3,5- di-t-butyl -4- hydroxyphenylmethyl) benzene or several
The mixing of kind.
The preparation method of any of the above-described antibacterial antistatic PBT composite, comprising the following steps:
(1) 80 parts of -100 parts of PBT, 4 parts of -6 parts of antibacterial agents, 4 parts of -8 parts of modified fullerenes, 0.1 part of -0.5 part of antioxygen are weighed
Agent is mixed and stirred for uniformly, obtaining mixture；
(2) by mixture extruding pelletization obtained in step (1) to get arrive PBT composite.
Step (2) specifically: put into the hopper of double screw extruder to squeeze out mixture obtained in step (1) and make
Grain to get arrive PBT composite, wherein the double screw extruder includes six humidity provinces sequentially arranged, area's temperature
200~220 DEG C, two 240~260 DEG C of area's temperature, three 240~260 DEG C of area's temperature, four 240~260 DEG C of area's temperature, five area's temperature
240~260 DEG C, six 240~260 DEG C of area's temperature, 240~260 DEG C of head temperature, 200~280r/min of screw speed.
The beneficial effects of the present invention are:
1. the technical program has synthesized a kind of loaded Cu first2+Nano-titanium dioxide, then using MgO to loaded Cu2+
Nano-titanium dioxide carry out surface cladding, eventually formed a kind of novel antibacterial agent.
2, MgO is to loaded Cu2+Nano-titanium dioxide to carry out surface coated mechanism as follows:
1. in aqueous solution, Mg2+Hydrolyzable generates Mg (OH)2And H+, HCO3 -It can be with H+Reaction generates CO2And H2O, this is
Two reversible reactions.Therefore when the two coexists in water, then can mutually promote respective reaction, to generate more Mg
(OH)2.Since Mg is added2+Speed it is very slow, and react be carried out under the situation of stirring, therefore generate Mg
(OH)2Particle is very tiny, and can be evenly distributed in solution, and overall reaction can be indicated with following equation:
Mg2++2HCO3 -→Mg(OH)2+2CO2
2. sample surfaces are negatively charged, Mg (OH) when solution pH value=72Surface is positively charged, in the effect of Coulomb force
Under, mutually absorption, the Mg (OH) generated due to reaction are occurred for the two2It is very tiny and uniform, therefore Mg (OH)2It can uniform quilt
It is coated on the surface of antimicrobial sample grain.
③Mg(OH)2It cannot be stabilized at high temperature, when carrying out high-temperature roasting to cladding sample, the Mg on surface
(OH)2It decomposes and generates MgO and H2O, MgO stay in the surface of sample in the form of clad.
3, fullerene is added in the technical program, substantially increases the antistatic property of PBT.
Specific embodiment
Carry out the technical solution that the present invention will be described in detail by the following examples, embodiment below is merely exemplary, only
It can be used to explanation and illustration technical solution of the present invention, and be not to be construed as the limitation to technical solution of the present invention.
Raw material used in each embodiment of the application is as follows:
PBT (model 2002U), Polyplastics；Nano-titanium dioxide, Xuancheng Jingrui New Material Co., Ltd.；Deionized water,
Shanghai joint-trial chemical reagent Co., Ltd；Copper sulphate, Zhengzhou morning rise chemical industry；NaHCO3, Hengyang Chun Mao chemical industry；MgSO4 solution, tall building
Sea of gates mark Science and Technology Ltd.；Fullerene, fullerene Science and Technology Ltd. of Puyang Yongxin；Ethanol solution, Kaifeng Sheng source chemical industry have
Limit company；Antioxidant (model Irganox168, Irganox1010, Irganox1330), Switzerland's Ciba.
Test equipment used in each embodiment of the application is as follows:
ZSK30 type double screw extruder, German W&P company；JL-1000 type tensile testing machine, the wide just experiment instrument in Guangzhou
The production of device company；HTL900-T-5B type injection (mo(u)lding) machine, the production of Hai Tai plastics machinery Co., Ltd；XCJ-500 type shock-testing
Machine, the production of Chengde testing machine factory；QT-1196 type tester for elongation, Dongguan City Gao Tai detecting instrument Co., Ltd；QD-GJS-
B12K type high-speed mixer, Beijing perseverance Order instrument and meter Co., Ltd.
The application provides a kind of antibacterial antistatic PBT composite, composed of the following components by weight:
The antibacterial agent is the loaded Cu that surface coats MgO2+Nano-titanium dioxide.
The preparation method of the antibacterial agent, comprising the following steps:
(1) weigh a certain amount of nano-titanium dioxide, deionized water and copper sulphate, nano-titanium dioxide, deionized water and
The mass ratio of copper sulphate is (30-50): (100-160): (20-30)；It adds them into reaction vessels, ultrasonic disperse 1-
3h forms solution A with sulfuric acid or sodium hydrate regulator solution PH=7；The partial size of nano-titanium dioxide is 16-20nm.
(2) solution A is put in after constant temperature is stirred to react 12-20h in 60-80 DEG C of water-bath, stands cooling, carried out
Filter, washing, drying, obtain loaded Cu2+Nano-titanium dioxide B.
(3) a certain amount of loaded Cu is weighed2+Nano-titanium dioxide B, NaHCO3And deionized water, loaded Cu2+Nanometer
Titanium dioxide B, NaHCO3And the mass ratio of deionized water is (60-80): (10-20): (180-240), ultrasonic disperse 2-4h, shape
At solution C.
(4) solution C is put in after constant temperature is stirred to react 8-10h in 50-70 DEG C of water-bath, is slowly added dropwise a certain amount of
MgSO4 solution, is stirred to react 1-3h after the completion, with sulfuric acid or sodium hydrate regulator solution PH=7, forms solution D；Solution C
Mass ratio with MgSO4 solution is (80-100): (10-16).
(5) solution D cleaned, filtered, dried, 600-700 DEG C of roasting 2-4h obtains antibacterial agent.
The preparation method of the modified fullerenes, comprising the following steps:
(1) a certain amount of fullerene and ethanol solution are weighed；The mass ratio of fullerene and ethanol solution is (20-30):
(180-240)。
(2) fullerene, ethanol solution are placed in reaction vessels, are put in ultrasonic wave pond, ultrasonic disperse 1-3h, after taking-up
Dry 4-6h, obtains modified fullerenes in 60-80 DEG C of baking oven.
The antioxidant is three (2,4- di-t-butyl) phenyl-phosphites (abbreviation Irganox168), four of BASF AG
[β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester (abbreviation Irganox1010) or 1,3,5- trimethyl -2,
The mixing of one or more of 4,6- (3,5- di-t-butyl -4- hydroxyphenylmethyl) benzene (abbreviation Irganox1330).
The preparation method of any of the above-described antibacterial antistatic PBT composite, comprising the following steps:
(1) 80 parts of -100 parts of PBT, 4 parts of -6 parts of antibacterial agents, 4 parts of -8 parts of modified fullerenes, 0.1 part of -0.5 part of antioxygen are weighed
Agent is mixed and stirred for uniformly, obtaining mixture；
(2) by mixture extruding pelletization obtained in step (1) to get arrive PBT composite.
Step (2) specifically: put into the hopper of double screw extruder to squeeze out mixture obtained in step (1) and make
Grain to get arrive PBT composite, wherein the double screw extruder includes six humidity provinces sequentially arranged, area's temperature
200~220 DEG C, two 240~260 DEG C of area's temperature, three 240~260 DEG C of area's temperature, four 240~260 DEG C of area's temperature, five area's temperature
240~260 DEG C, six 240~260 DEG C of area's temperature, 240~260 DEG C of head temperature, 200~280r/min of screw speed.
Embodiment 1
(1) 80 parts of PBT, 4 parts of antibacterial agents, 4 parts of modified fullerenes, 0.1 part of Irganox168 is weighed to be mixed and stirred for uniformly,
Obtain mixture；
(2) by mixture extruding pelletization obtained in step (1) to get arrive PBT composite P1.
Wherein each area's temperature of double screw extruder and screw speed are respectively as follows: 200 DEG C of area's temperature, two 240 DEG C of area's temperature,
Three 240 DEG C of area's temperature, four 240 DEG C of area's temperature, five 240 DEG C of area's temperature, six 240 DEG C of area's temperature, 240 DEG C of head temperature, screw rod turns
Fast 200r/min.
Embodiment 2
(1) 100 parts of PBT, 6 parts of antibacterial agents, 8 parts of modified fullerenes, 0.1 part of Irganox168,0.2 part are weighed
Irganox1010,0.2 part of Irganox1330 are mixed and stirred for uniformly, obtaining mixture；
(2) by mixture extruding pelletization obtained in step (1) to get arrive PBT composite P2.
Wherein each area's temperature of double screw extruder and screw speed are respectively as follows: 220 DEG C of area's temperature, two 260 DEG C of area's temperature,
Three 260 DEG C of area's temperature, four 260 DEG C of area's temperature, five 260 DEG C of area's temperature, six 260 DEG C of area's temperature, 260 DEG C of head temperature, screw rod turns
Fast 280r/min.
Embodiment 3
(1) 90 parts of PBT, 5 parts of antibacterial agents, 6 parts of modified fullerenes, 0.1 part of Irganox168,0.2 part are weighed
Irganox1010 is mixed and stirred for uniformly, obtaining mixture；
(2) by mixture extruding pelletization obtained in step (1) to get arrive PBT composite P3.
Wherein each area's temperature of double screw extruder and screw speed are respectively as follows: 210 DEG C of area's temperature, two 250 DEG C of area's temperature,
Three 250 DEG C of area's temperature, four 250 DEG C of area's temperature, five 250 DEG C of area's temperature, six 250 DEG C of area's temperature, 250 DEG C of head temperature, screw rod turns
Fast 240r/min.
Embodiment 4
(1) 95 parts of PBT, 6 parts of antibacterial agents, 7 parts of modified fullerenes, 0.1 part of Irganox1010,0.2 part are weighed
Irganox1330 is mixed and stirred for uniformly, obtaining mixture；
(2) by mixture extruding pelletization obtained in step (1) to get arrive PBT composite P4.
Wherein each area's temperature of double screw extruder and screw speed are respectively as follows: 205 DEG C of area's temperature, two 245 DEG C of area's temperature,
Three 245 DEG C of area's temperature, four 245 DEG C of area's temperature, five 245 DEG C of area's temperature, six 245 DEG C of area's temperature, 245 DEG C of head temperature, screw rod turns
Fast 230r/min.
Embodiment 5
(1) 100 parts of PBT, 4 parts of antibacterial agents, 5 parts of modified fullerenes, 0.2 part of Irganox1010,0.2 part are weighed
Irganox1330 is mixed and stirred for uniformly, obtaining mixture；
(2) by mixture extruding pelletization obtained in step (1) to get arrive PBT composite P5.
Wherein each area's temperature of double screw extruder and screw speed are respectively as follows: 205 DEG C of area's temperature, two 255 DEG C of area's temperature,
Three 255 DEG C of area's temperature, four 255 DEG C of area's temperature, five 255 DEG C of area's temperature, six 255 DEG C of area's temperature, 255 DEG C of head temperature, screw rod turns
Fast 245r/min.
Comparative example 1
(1) 80 parts of PBT, 0.1 part of Irganox1010,0.2 part of Irganox168 is weighed to be mixed and stirred for uniformly, being mixed
Close material；
(2) by mixture extruding pelletization obtained in step (1) to get arrive PBT composite D1.
Wherein each area's temperature of double screw extruder and screw speed are respectively as follows: 205 DEG C of area's temperature, two 255 DEG C of area's temperature,
Three 255 DEG C of area's temperature, four 255 DEG C of area's temperature, five 255 DEG C of area's temperature, six 255 DEG C of area's temperature, 255 DEG C of head temperature, screw rod turns
Fast 245r/min.
Performance test:
Batten test is made with injection molding machine in PBT composite prepared by above-described embodiment 1-5 and comparative example 1, tests number
According to being as follows:
It can also be seen that the antibiotic property of embodiment 1-5 and antistatic property will be better than comparative example 1 from table.This is for expanding
The application field for opening up PBT composite, can be widely used in the fields such as automobile, household electrical appliances, machinery, have very important significance.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And deformation, the scope of the present invention are extremely equally limited by appended claims.
Claims (10)
1. a kind of antibacterial antistatic PBT composite, which is characterized in that composed of the following components by weight:
The antibacterial agent is the loaded Cu that surface coats MgO2+Nano-titanium dioxide.
2. antibacterial antistatic PBT composite according to claim 1, which is characterized in that the preparation side of the antibacterial agent
Method, comprising the following steps:
(1) a certain amount of nano-titanium dioxide, deionized water and copper sulphate are weighed, is added them into reaction vessels, ultrasound
Disperse 1-3h, with sulfuric acid or sodium hydrate regulator solution PH=7, forms solution A；
(2) solution A is put in after constant temperature is stirred to react 12-20h in 60-80 DEG C of water-bath, stands cooling, is filtered, washes
It washs, dry, obtain loaded Cu2+Nano-titanium dioxide B；
(3) a certain amount of loaded Cu is weighed2+Nano-titanium dioxide B, NaHCO3And deionized water, ultrasonic disperse 2-4h are formed
Solution C；
(4) solution C is put in after constant temperature is stirred to react 8-10h in 50-70 DEG C of water-bath, a certain amount of MgSO4 is slowly added dropwise
Solution is stirred to react 1-3h after the completion, with sulfuric acid or sodium hydrate regulator solution PH=7, forms solution D；
(5) solution D cleaned, filtered, dried, 600-700 DEG C of roasting 2-4h obtains antibacterial agent.
3. antibacterial antistatic PBT composite according to claim 2, which is characterized in that nanometer titanium dioxide in step (1)
The mass ratio of titanium, deionized water and copper sulphate is (30-50): (100-160): (20-30).
4. antibacterial antistatic PBT composite according to claim 2, which is characterized in that loaded Cu in step (3)2+'s
Nano-titanium dioxide B, NaHCO3And the mass ratio of deionized water is (60-80): (10-20): (180-240).
5. antibacterial antistatic PBT composite according to claim 2, which is characterized in that in step (4) solution C with
The mass ratio of MgSO4 solution is (80-100): (10-16).
6. antibacterial antistatic PBT composite according to claim 1, which is characterized in that the system of the modified fullerenes
Preparation Method, comprising the following steps:
(1) a certain amount of fullerene and ethanol solution are weighed；
(2) fullerene, ethanol solution are placed in reaction vessels, are put in ultrasonic wave pond, ultrasonic disperse 1-3h, after taking-up
Dry 4-6h, obtains modified fullerenes in 60-80 DEG C of baking oven.
7. antibacterial antistatic PBT composite according to claim 6, which is characterized in that fullerene and second in step (1)
The mass ratio of alcoholic solution is (20-30): (180-240).
8. antibacterial antistatic PBT composite according to claim 1, which is characterized in that the antioxidant is three (2,4-
Di-t-butyl) phenyl-phosphite, four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters or 1,3,5- front threes
Base -2,4, the mixing of one or more of 6- (3,5- di-t-butyl -4- hydroxyphenylmethyl) benzene.
9. the preparation method of any one of the claims 1 to 8 antibacterial antistatic PBT composite, which is characterized in that including
Following steps:
(1) it is mixed that 80 parts of -100 parts of PBT, 4 parts of -6 parts of antibacterial agents, 4 parts of -8 parts of modified fullerenes, 0.1 part of -0.5 part of antioxidant are weighed
Merging stirs evenly, and obtains mixture；
(2) by mixture extruding pelletization obtained in step (1) to get arrive PBT composite.
10. the preparation method of antibacterial antistatic PBT composite according to claim 9, which is characterized in that step (2)
Specifically: mixture obtained in step (1) is put into the hopper of double screw extruder extruding pelletization to get multiple to PBT
Condensation material, wherein the double screw extruder includes six humidity provinces sequentially arranged, 200~220 DEG C of area's temperature, 2nd area
240~260 DEG C of temperature, three 240~260 DEG C of area's temperature, four 240~260 DEG C of area's temperature, five 240~260 DEG C of area's temperature, 6th area
240~260 DEG C of temperature, 240~260 DEG C of head temperature, 200~280r/min of screw speed.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114404308A (en) * | 2021-12-01 | 2022-04-29 | 广州雷诺生物科技有限公司 | Fullerene moisturizing, whitening and repairing essence and preparation method thereof |
| CN114479369A (en) * | 2020-10-27 | 2022-05-13 | 合肥杰事杰新材料股份有限公司 | Antibacterial PBT (polybutylene terephthalate) composite material and preparation method thereof |
| CN115232450A (en) * | 2022-08-08 | 2022-10-25 | 安徽江淮汽车集团股份有限公司 | PET composite material containing modified nano lanthanum oxide and preparation method thereof |
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| CN115232450A (en) * | 2022-08-08 | 2022-10-25 | 安徽江淮汽车集团股份有限公司 | PET composite material containing modified nano lanthanum oxide and preparation method thereof |
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Address after: 230601 No. 99 Ziyun Road, Hefei Economic and Technological Development Zone, Anhui Province Applicant after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 No. 669 Shixin Road, Taohua Industrial Park, Hefei City, Anhui Province Applicant before: Anhui Jianghuai Automobile Group Limited by Share Ltd |
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Application publication date: 20190111 |