CN105291397B - A kind of Biodegradable films process equipment - Google Patents
A kind of Biodegradable films process equipment Download PDFInfo
- Publication number
- CN105291397B CN105291397B CN201510798160.XA CN201510798160A CN105291397B CN 105291397 B CN105291397 B CN 105291397B CN 201510798160 A CN201510798160 A CN 201510798160A CN 105291397 B CN105291397 B CN 105291397B
- Authority
- CN
- China
- Prior art keywords
- driven pulley
- screw rod
- cylinder
- thermometer
- motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/285—Feeding the extrusion material to the extruder
- B29C48/287—Raw material pre-treatment while feeding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/285—Feeding the extrusion material to the extruder
- B29C48/288—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/397—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using a single screw
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Biological Depolymerization Polymers (AREA)
- Accessories For Mixers (AREA)
Abstract
The invention discloses a kind of Biodegradable films process equipment, including feeding mouth, motor, hold-down bars, first driven pulley, curved screen, second driven pulley, buncher, screw rod, temperature regulating device, film outlet port, thermometer and heater, the motor is arranged between the top of cylinder and protective cover, driving wheel is installed with the motor, the driving wheel is connected with the first driven pulley by belt V belt translation, second driven pulley is rotated by rotary shaft with stirring rod and is connected, the thermometer before screw rod with being provided with temperature regulating device, the screw rod is fixedly connected through cylinder with buncher, gear pump is provided between the film outlet port and screw rod, heater is provided with above the gear pump.The present invention is used cooperatively using secondary agitation and gear pump, while also solving the problem of transmission is with temperature control, the biomembrane of manufacture is degradable, and the quality and production efficiency of raising product.
Description
Technical field
The present invention relates to biodegradable technical field of membrane, specially a kind of Biodegradable films process equipment.
Background technology
Biodegradable films refer to that a class can cause the plastic foil of degraded under natural environmental condition for microbial action.Carefully
After the microbial attack plastic sheeting such as bacterium, fungi and actinomyces, because the growth of cell makes polymers compositions hydrolysis, ionization or matter
Sonization, occurs mechanical destruction, splits into oligomer fragment, and the enzyme of fungi or bacterial secretory makes water-soluble polymer decompose or oxygen
Change is degraded into water-soluble fragment, generates new micromolecular compound, until being ultimately breaks down into C02 and H20.
The sorting technique of Biodegradable films has many kinds, and following a few species can be classified as according to different sorting techniques
Type：According to mechanism of degradation and failure mode, Biodegradable films can be divided into complete biodegradation film and addition type biodegradable film
Two types.Complete biodegradation film is the plastic sheeting of the material composition by can completely be decomposed by microorganism, and the material is main
From starch, cellulose, chitosan and other polysaccharide natural materials, its final product degraded is C02 and H20, can be complete
It is all nature to dissolve, will not also produces secondary pollution to environment.Its principal item has PLA（PLA）, polycaprolactone
（PCL）, poly butyric ester（PUB）Deng.In addition polyvinyl alcohol also can be degradable by water and microorganism.Addition type biological can drop
Film is solved, is that on the basis of the general-purpose plastics without biodegradation character, addition is natural or synthetic with biodegradation character
Polymer or biodegradation promotor, processing aid etc., it is blended to be made.At present, addition type biodegradable film, mainly by leading to
Constituted with plastics, starch, compatilizer, autoxidator, processing aid.Its typical species is polyethylene starch biodegradable film.
Starch industry is described as rising industry, can directly drive the hair of all conglomeraties such as agricultural, food, papermaking, medicine, chemical industry, oil
Exhibition.At present, though China's starch industry has made much progress, year pre-capita consumption there was only 8.5 kilograms, be the 9.4% of the U.S., day
This 36.6%, and it is less than Thailand's per capita consuming level, therefore the starch material supply of China is not so good as PE abundances, but it is domestic current
Biodegradable films yield is relatively low, and the demand to starch is less, integrally sees, the supply of starch will not be produced to Biodegradable films
Limitation.
At present, film production and processing is to be allowed to solid feed in glutinous stream mode by heating, in pressure, the situation of heating
Under, by having effigurate get to know as section and the similar non-individual body of Oral incision, then by being cooled and shaped, shape
Into the effigurate film of tool, current this manufacturing and processing equipment, in use because mechanical shock causes cylinder to go out
Mouth shake directly affects the uniformity of product, so as to influence the quality of product, and reduces the level of production.
The content of the invention
It is an object of the invention to provide a kind of Biodegradable films process equipment, to solve what is proposed in above-mentioned background technology
Problem.
To achieve the above object, the present invention provides following technical scheme：A kind of Biodegradable films process equipment, including pan feeding
Mouth, motor, hold-down bars, the first driven pulley, curved screen, the second driven pulley, buncher, screw rod, temperature regulating device, membrane
Mouth, thermometer and heater, the feeding mouth are arranged on the top of cylinder, and the motor is arranged on the top of cylinder with preventing
Between shield, and it is installed with positioned at the left side of feeding mouth, on the motor driving wheel, the driving wheel and first driven
Wheel is connected by belt V belt translation, and first driven pulley is rotated by rotary shaft with hold-down bars and is connected, first driven pulley
It is connected between the second driven pulley by belt V belt translation, second driven pulley is rotated by rotary shaft with stirring rod and is connected,
Curved screen is provided between the hold-down bars and thermometer, thermometer, institute are provided between the curved screen and stirring rod
Thermometer is stated with being provided with temperature regulating device before screw rod, the screw rod is fixedly connected through cylinder with buncher, described
Buncher is fixed on support, and is arranged on the left side of cylinder, is provided with gear pump between the film outlet port and screw rod, institute
State and heater is provided with above gear pump.
It is preferred that, it is provided with damping device between the motor and cylinder.
It is preferred that, connected between the rotary shaft, rotary shaft, screw rod and cylinder by sealed bearings.
It is preferred that, the first driven pulley is provided between the driving wheel and the second driven pulley.
It is preferred that, the stirring rod is arranged between two temperatures meter.
It is preferred that, it is provided with temperature indicator on the heater.
Compared with prior art, the beneficial effects of the invention are as follows：The Biodegradable films process equipment, using secondary agitation and
Gear pump is used cooperatively so that the raw material of input stirs, and the output quantity of film outlet port is stable, utilizes screw rod rotation to pass
The principle sent and the setting of temperature regulating device, the problem of solving transmission and temperature control, and improve quality and the production of product
Efficiency, the biomembrane of device fabrication is degradable, the problem of solving fouling membrane and non-degradable, right reasonably using resource
Environmental protection has great meaning.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
In figure：1st, feeding mouth, 2, cylinder, 3, motor, 4, protective cover, 5, driving wheel, 6, belt, 7, hold-down bars, 8, rotation
Rotating shaft, the 9, first driven pulley, 10, curved screen, 11, sealed bearings, the 12, second driven pulley, 13, buncher, 14, support,
15th, screw rod, 16, temperature regulating device, 17, film outlet port, 18, gear pump, 19, thermometer, 20, rotary shaft, 21, stirring rod, 22 plus
Thermal.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Referring to Fig. 1, the present invention provides a kind of technical scheme：A kind of Biodegradable films process equipment, including feeding mouth 1,
Motor 3, hold-down bars 7, the first driven pulley 9, curved screen 10, the second driven pulley 12, buncher 13, screw rod 15, temperature control
Device 16, film outlet port 17, thermometer 19 and heater 22, feeding mouth 1 are arranged on the top of cylinder 2, and motor 3 is arranged on cylinder
Between the top of body 2 and protective cover 4, and driving wheel 5, driving wheel 5 are installed with the left side of feeding mouth 1, motor 3
It is connected with the first driven pulley 9 by the V belt translation of belt 6, the first driven pulley 9 is rotated by rotary shaft 8 with hold-down bars 7 and is connected, first
Connected between the driven pulley 12 of driven pulley 9 and second by the V belt translation of belt 6, the second driven pulley 12 passes through rotary shaft with stirring rod 21
20 rotate connection, and curved screen 10 is provided between hold-down bars 7 and thermometer 19, are set between curved screen 10 and stirring rod 21
There is thermometer 19, thermometer 19 passes through cylinder 2 and buncher with being provided with temperature regulating device 16, screw rod 15 before screw rod 15
13 are fixedly connected, and buncher 13 is fixed on support 14, and are arranged on the left side of cylinder 2, film outlet port 17 and screw rod 15 it
Between be provided with gear pump 18, the top of gear pump 18 is provided with heater 22, damping is provided between motor 3 and cylinder 2
Device, is connected between rotary shaft 8, rotary shaft 20, screw rod 15 and cylinder 2 by sealed bearings 11, driving wheel 5 and second driven
The first driven pulley 9 is provided between wheel 12, stirring rod 21 is arranged between two temperatures meter 19, and temperature is provided with heater 22
Display.
Operation principle：In use, starting motor 3, buncher 13 and heater 22, raw material is thrown from feeding mouth 1
Enter, motor 3 drives driving wheel 5 to rotate, driving wheel 5 drives the first driven pulley 9 to rotate by belt 6, and the first driven pulley 9 passes through
Rotary shaft 8 drives the raw material of 7 pairs of inputs of hold-down bars to be crushed and stirred, after raw material is by curved screen 10, heater 22
It is heated so that raw material liquefies, thermometer 19 measures the temperature of raw material anywhere or anytime, and the first driven pulley 9 passes through the band of belt 6
The rotation of dynamic second driven pulley 12, the second driven pulley 12 drives the rotation of stirring rod 21 by rotary shaft 20 so that stirring rod 21
Raw material by curved screen 10 is sufficiently stirred, the liquid after being sufficiently stirred for will enter in screw rod 15, speed governing electricity
Machine 13 drives the rotation of screw rod 15, and the rotation of screw rod 15 is played a part of transmitting and stirred to liquid, in the process of transmission
In, temperature regulating device 16 is controlled to fluid temperature, and final liquid is uniformly flowed out by gear pump 18 from film outlet port 17.
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 changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (4)
1. a kind of Biodegradable films process equipment, including feeding mouth（1）, motor（3）, hold-down bars（7）, the first driven pulley（9）、
Curved screen（10）, the second driven pulley（12）, buncher（13）, screw rod（15）, temperature regulating device（16）, film outlet port（17）、
Thermometer（19）And heater（22）, it is characterised in that：The feeding mouth（1）It is arranged on cylinder（2）Top, it is described electronic
Machine（3）It is arranged on cylinder（2）Top and protective cover（4）Between, and positioned at feeding mouth（1）Left side, the motor（3）On
It is installed with driving wheel（5）, the driving wheel（5）With the first driven pulley（9）Pass through belt（6）V belt translation is connected, and described the
One driven pulley（9）With hold-down bars（7）Pass through rotary shaft（8）Rotate connection, first driven pulley（9）With the second driven pulley（12）
Between pass through belt（6）V belt translation is connected, second driven pulley（12）With stirring rod（21）Pass through rotary shaft（20）The company of rotation
Connect, the hold-down bars（7）With thermometer（19）Between be provided with curved screen（10）, the curved screen（10）With stirring rod
（21）Between be provided with thermometer（19）, the thermometer（19）With screw rod（15）Temperature regulating device is provided with before（16）, institute
State screw rod（15）Through cylinder（2）With buncher（13）It is fixedly connected, the buncher（13）It is fixed on support（14）
On, and it is arranged on cylinder（2）Left side, the film outlet port（17）With screw rod（15）Between be provided with gear pump（18）, it is described
Gear pump（18）Top be provided with heater（22）, the motor（3）With cylinder（2）Between be provided with damping device,
The rotary shaft（8）, rotary shaft（20）, screw rod（15）With cylinder（2）Between pass through sealed bearings（11）Connection.
2. Biodegradable films process equipment according to claim 1, it is characterised in that：The driving wheel（5）With second from
Driving wheel（12）Between be provided with the first driven pulley（9）.
3. Biodegradable films process equipment according to claim 1, it is characterised in that：The stirring rod（21）It is arranged on two
Thermometer（19）Between.
4. Biodegradable films process equipment according to claim 1, it is characterised in that：The heater（22）It is upper to set
There is temperature indicator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510798160.XA CN105291397B (en) | 2015-11-19 | 2015-11-19 | A kind of Biodegradable films process equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510798160.XA CN105291397B (en) | 2015-11-19 | 2015-11-19 | A kind of Biodegradable films process equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105291397A CN105291397A (en) | 2016-02-03 |
| CN105291397B true CN105291397B (en) | 2017-10-24 |
Family
ID=55189541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510798160.XA Active CN105291397B (en) | 2015-11-19 | 2015-11-19 | A kind of Biodegradable films process equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105291397B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110919900A (en) * | 2019-11-23 | 2020-03-27 | 湖南省客来宝生物能源科技有限公司 | Biodegradable plastic film production equipment |
| CN112405931B (en) * | 2020-10-26 | 2022-09-20 | 苏州和塑美科技有限公司 | Preparation method of nano-montmorillonite reinforced starch-based biodegradable blown film material, product and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201253940Y (en) * | 2008-05-23 | 2009-06-10 | 上海龙山凤机器制造有限公司 | Double driving type planet screw rod tape casting extruder |
| CN203427303U (en) * | 2013-06-14 | 2014-02-12 | 天华化工机械及自动化研究设计院有限公司 | Feeding system of biaxially oriented plastic film broken material |
| CN204547020U (en) * | 2015-04-14 | 2015-08-12 | 陈伟亚 | The anti-clogging plastic extruder that a kind of high-frequency electromagnetic with measuring pump heats |
| CN204712411U (en) * | 2015-05-06 | 2015-10-21 | 陈昭锋 | A kind of anticlogging screw extruder |
| CN205148836U (en) * | 2015-11-19 | 2016-04-13 | 湖南省客来宝生物能源科技有限公司 | Biodegradable plastic film processing equipment |
-
2015
- 2015-11-19 CN CN201510798160.XA patent/CN105291397B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201253940Y (en) * | 2008-05-23 | 2009-06-10 | 上海龙山凤机器制造有限公司 | Double driving type planet screw rod tape casting extruder |
| CN203427303U (en) * | 2013-06-14 | 2014-02-12 | 天华化工机械及自动化研究设计院有限公司 | Feeding system of biaxially oriented plastic film broken material |
| CN204547020U (en) * | 2015-04-14 | 2015-08-12 | 陈伟亚 | The anti-clogging plastic extruder that a kind of high-frequency electromagnetic with measuring pump heats |
| CN204712411U (en) * | 2015-05-06 | 2015-10-21 | 陈昭锋 | A kind of anticlogging screw extruder |
| CN205148836U (en) * | 2015-11-19 | 2016-04-13 | 湖南省客来宝生物能源科技有限公司 | Biodegradable plastic film processing equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105291397A (en) | 2016-02-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101805499B (en) | Full-degradable thermoplastic composite material and sheet thereof | |
| CN203128439U (en) | Rotary drum type aerobic fermentation treatment device for organic wastes | |
| CN104098791A (en) | Biodegradable thermoplastic starch-polyethylene film | |
| CN105291397B (en) | A kind of Biodegradable films process equipment | |
| CN215162228U (en) | Microorganism aerobic composting device | |
| CN205133620U (en) | Full -automatic fermentation equipment | |
| CN205148836U (en) | Biodegradable plastic film processing equipment | |
| CN103724667A (en) | Thermoplastic biodegradable material and preparation method thereof | |
| CN106554232B (en) | Process and equipment for preparing mushroom base material by using straws | |
| CN115057730B (en) | Fermentation process method of low-emission micro-oxygen fermentation machine | |
| CN110774401A (en) | Method and apparatus for manufacturing fibre suction pipe | |
| CN107722582A (en) | Biodegradable plastic film master batch and its application | |
| CN105417244A (en) | Automatic film rolling tool for biodegradable film | |
| CN208684800U (en) | Innoxious quick processing agriculture and industry waste fermentation system | |
| CN206870162U (en) | A kind of Biodegradable film production agitating device | |
| EP3944906A1 (en) | On-site waste processing | |
| TW202408770A (en) | Injection molding method for plant fiber products | |
| TWI818835B (en) | Biodegradable tongue depressor raw material composition and manufacturing process | |
| CN205148955U (en) | Biodegradable plastic film production facility | |
| CN205148657U (en) | Masterbatch kneading machine for biodegradable plastic film | |
| CN211359091U (en) | Fertilizer raw materials crushing cylinder | |
| CN205269460U (en) | Trough type mixing machine | |
| CN201950746U (en) | Online offcut recover system | |
| TW202405081A (en) | Improved composition of biodegradable raw materials | |
| CN203446463U (en) | Multifunctional sweet potato powder machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201013 Address after: 030001 Shanxi comprehensive reform demonstration zone, Taiyuan City, Shanxi Province, No.19 Qingyun street, Taiyuan Wusu Comprehensive Bonded Zone, No.2, No.1, bonded zone 0127 Patentee after: Shanxi Anhua New Material Research Institute Co., Ltd Address before: 421800 Haitong logistics park, zhe Zhen Town, Hengyang City, Hunan, Leiyang Patentee before: HUNAN KELAIBAO BIOENERGY TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210729 Address after: 035105 East Dashu village, shenyugou Township, jingle County, Xinzhou City, Shanxi Province (Jingle modern agricultural industry demonstration park) Patentee after: Shanxi Anhua Biotechnology Co.,Ltd. Address before: 030001 No. 1, No. 2, free trade zone, No. 19, Qingyun street, Wusu comprehensive free trade zone, Shanxi comprehensive reform demonstration zone, Taiyuan City, Shanxi Province 0127 Patentee before: Shanxi Anhua New Material Research Institute Co., Ltd |