CN112679944B - Manufacturing method of antibacterial BOPA film - Google Patents
Manufacturing method of antibacterial BOPA film Download PDFInfo
- Publication number
- CN112679944B CN112679944B CN202011554727.6A CN202011554727A CN112679944B CN 112679944 B CN112679944 B CN 112679944B CN 202011554727 A CN202011554727 A CN 202011554727A CN 112679944 B CN112679944 B CN 112679944B
- Authority
- CN
- China
- Prior art keywords
- surface layer
- raw material
- antibacterial
- layer raw
- bopa film
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
Abstract
The invention relates to the technical field of BOPA, in particular to a manufacturing method of an antibacterial BOPA film, which has simple flow, improves the antibacterial property of the BOPA film and promotes the development of the BOPA film; the method comprises the following steps: s1, according to parts by weight: the core layer is made of 100% of PA 6; the upper surface layer raw material and the lower surface layer raw material are 86-90% of PA6, 3-6% of silver, zinc and titanium dioxide composite antibacterial agent, 3-9% of slipping agent, 0.5-1% of heat-resistant assistant and 0.5-1% of antioxidant; s2, mixing the main material, the upper surface layer raw material and the lower surface layer raw material by using a single high-speed mixer for later use; s3, adding the mixed main material, upper surface layer raw material and lower surface layer raw material into a main extruder, an auxiliary extruder and an auxiliary two extruder respectively, and performing melt co-extrusion and sheet casting to obtain a three-layer thick sheet base material consisting of an upper surface layer, a core layer and a lower surface layer; and S4, feeding the three-layer thick sheet base material into an oven, performing synchronous biaxial stretching and shaping, and then rolling and slitting to obtain the antibacterial BOPA film.
Description
Technical Field
The invention relates to the technical field of BOPA, in particular to a manufacturing method of an antibacterial BOPA film.
Background
BOPA is an english abbreviation of biaxially oriented nylon film, and biaxially oriented nylon film (BOPA) is an important material for producing various composite packaging materials, and is currently the third largest packaging material behind BOPP and BOPET films.
With the development of science and technology and the improvement of living standard of people, the antibacterial performance of packaging also becomes a big problem which must be considered by the industry, and the BOPA is used as a large packaging material and is sometimes in direct contact with a to-be-packaged object, so that the BOPA film without antibacterial performance is greatly limited in use, and the development of the BOPA film is influenced
Disclosure of Invention
In order to solve the technical problems, the invention provides a manufacturing method of an antibacterial BOPA film, which has a simple process, improves the antibacterial property of the BOPA film and promotes the development of the BOPA film.
The invention discloses a manufacturing method of an antibacterial BOPA film, which comprises the following steps:
s1, according to parts by weight: the core layer is made of 100% PA 6; the upper surface layer raw material and the lower surface layer raw material are 86-90% of PA6, 3-6% of silver, zinc and titanium dioxide composite antibacterial agent, 3-9% of slipping agent, 0.5-1% of heat-resistant assistant and 0.5-1% of antioxidant;
s2, mixing the main material, the upper surface layer raw material and the lower surface layer raw material by using a single high-speed mixer for later use;
s3, adding the mixed main material, upper surface layer raw material and lower surface layer raw material into a main extruder, an auxiliary extruder and an auxiliary two extruder respectively, and performing melt co-extrusion and sheet casting to obtain a three-layer thick sheet base material consisting of an upper surface layer, a core layer and a lower surface layer;
and S4, feeding the three-layer thick base material into an oven, performing synchronous biaxial stretching and shaping, and then rolling and slitting to obtain the antibacterial BOPA film.
The invention discloses a method for manufacturing an antibacterial BOPA film, which comprises the following steps:
(1) putting zeolite into a muffle furnace, calcining for 1h at 350 ℃, taking out, and crushing to 100 meshes for later use;
(2) taking 10g of zeolite powder in the step (1), adding 10 times of water, stirring, adding a dilute hydrochloric acid solution to adjust the pH value to 2, then adding 4mL of titanium tetrachloride solution with the purity of 99% at normal temperature, heating to 85-90 ℃, preserving heat30min, then adding sodium hydroxide solution to adjust pH to 7 to obtain Ti 4+ Titanium dioxide is completely generated to form a mixed solution A;
(3) cooling the mixed solution A to 70 ℃, adding a dilute hydrochloric acid solution to adjust the pH value to 3, adding 2-4g of silver nitrate and 2-4g of zinc nitrate, and reacting for 30 min;
(4) filtering, washing filter residue with deionized water, drying at 100 ℃, and crushing to obtain the silver, zinc and titanium dioxide composite antibacterial agent.
According to the manufacturing method of the antibacterial BOPA film, the cation exchange capacity of the zeolite is 96mmol/100 g.
According to the manufacturing method of the antibacterial BOPA film, the step (2) and the step (3) are all stirred by magnetic force.
According to the manufacturing method of the antibacterial BOPA film, the slipping agent is sodium stearate.
According to the manufacturing method of the antibacterial BOPA film, the antioxidant is Irganox 1076.
Compared with the prior art, the invention has the beneficial effects that: firstly, the antibacterial capacity of the BOPA film is improved by adding the silver, zinc and titanium dioxide composite antibacterial agent; secondly, the zeolite is used as a matrix and is loaded with silver ions, zinc ions and titanium dioxide, and the sterilization principle of the silver ions and the zinc ions is as follows: the cell membrane of the microorganism is mostly provided with negative charges, and silver ions and zinc ions are provided with positive charges, can be firmly adsorbed on the cell membrane by virtue of Coulomb attraction, can further penetrate through the cell wall to enter the cell membrane of the bacterium, and can react with the bacterium through sulfydryl, so that the protein coagulation of the bacterium is realized, the activities of the cell and enzyme formation of the bacterium are damaged, the cell loses the division reproductive capacity and dies, and the silver ions can simultaneously damage an electronic transmission system, a respiratory system and a substance transmission system of the microorganism. When the activity of the bacteria thallus is lost, silver ions are dissociated from the thallus and the sterilization activity is repeated, so that the effect of lasting antibiosis is achieved; the nano titanium dioxide prepared by hydrolyzing titanium tetrachloride generates active oxygen under the action of ultraviolet rays to kill bacteria; thirdly, the preparation process of the silver, zinc and titanium dioxide composite antibacterial agent is simple and does not need high temperature and high pressure.
Detailed Description
The following examples are given to further illustrate embodiments of the present invention. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
The following embodiments relate to melt co-extrusion, sheet casting, synchronous biaxial stretching, sizing, rolling and slitting, which are all prior art, and are not described in detail;
example 1:
the invention discloses a manufacturing method of an antibacterial BOPA film, which comprises the following steps:
s1, according to weight fraction: the core layer is made of 100% PA 6; the upper surface layer raw material and the lower surface layer raw material are respectively 90% of PA6, 3% of silver, zinc and titanium dioxide composite antibacterial agent, 6% of sodium stearate, 0.5% of heat-resistant auxiliary agent and 0.5% of Irganox 1076;
s2, mixing the main material, the upper surface layer raw material and the lower surface layer raw material by using a single high-speed mixer for later use;
s3, adding the mixed main material, upper surface layer raw material and lower surface layer raw material into a main extruder, an auxiliary extruder and an auxiliary two extruder respectively, and performing melt co-extrusion and sheet casting to obtain a three-layer thick sheet base material consisting of an upper surface layer, a core layer and a lower surface layer;
and S4, feeding the three-layer thick sheet base material into an oven, performing synchronous biaxial stretching and shaping, and then rolling and slitting to obtain the antibacterial BOPA film.
The invention discloses a method for manufacturing an antibacterial BOPA film, which comprises the following steps:
(1) putting zeolite (the cation exchange capacity is 96mmol/100g) into a muffle furnace, calcining for 1h at 350 ℃, taking out, and crushing to 100 meshes for later use;
(2) taking 10g of zeolite powder obtained in the step (1), adding 10 times of water, stirring, adding a dilute hydrochloric acid solution to adjust the pH value to 2, then adding 4mL of a titanium tetrachloride solution with the purity of 99% at normal temperature, heating to 85-90 ℃, keeping the temperature for 30min, then adding a sodium hydroxide solution to adjust the pH value to 7, and enabling Ti to be Ti 4+ All titanium dioxide is generatedForming a mixed solution A, and magnetically stirring the whole process;
(3) cooling the mixed solution A to 70 ℃, adding a dilute hydrochloric acid solution to adjust the pH value to 3, adding 4g of silver nitrate and 2g of zinc nitrate, reacting for 30min, and carrying out magnetic stirring in the whole process;
(4) filtering, washing filter residue with deionized water, drying at 100 ℃, and crushing to obtain the silver, zinc and titanium dioxide composite antibacterial agent.
The differences between the examples 2, 3 and 4 and the example 1 are shown in the addition amounts of the upper surface layer raw material, the lower surface layer raw material and the silver nitrate and zinc nitrate, and the following specific table is shown in the following table:
the thicknesses of the core layer, the upper surface layer and the lower surface layer of the antibacterial BOPA film prepared in the examples 1, 2, 3 and 4 are respectively 15 micrometers, 2.5 micrometers and 2.5 micrometers, and the antibacterial BOPA film prepared in the examples 1, 2, 3 and 4 is tested (national standard GB/T20218-: the data in the following table were obtained:
from the above data, the indexes of the antibacterial BOPA film prepared in the examples 1-4 are far superior to the industrial standard;
the antibacterial BOPA films prepared in examples 1-4 were tested according to the test standard QB/T2591-:
comparative example 1:
the method comprises the following steps:
s1, according to parts by weight: the core layer is made of 100% of PA 6; the raw materials of the upper surface layer and the lower surface layer are respectively 90% of PA6, 3% of silver powder, 6% of sodium stearate, 0.5% of heat-resistant assistant and 0.5% of Irganox 1076;
s2, mixing the main material, the upper surface layer raw material and the lower surface layer raw material by using a single high-speed mixer for later use;
s3, adding the mixed main material, upper surface layer raw material and lower surface layer raw material into a main extruder, an auxiliary extruder and an auxiliary two extruder respectively, and performing melt co-extrusion and sheet casting to obtain a three-layer thick sheet base material consisting of an upper surface layer, a core layer and a lower surface layer;
and S4, feeding the three-layer thick sheet base material into an oven, performing synchronous biaxial stretching and shaping, and then rolling and slitting to obtain the antibacterial BOPA film.
Comparative example 2:
the method comprises the following steps:
s1, according to weight fraction: the core layer is made of 100% PA 6; the upper surface layer raw material and the lower surface layer raw material are respectively 90% of PA6, 3% of nano titanium dioxide powder, 6% of sodium stearate, 0.5% of heat-resistant auxiliary agent and 0.5% of Irganox 1076;
s2, mixing the main material, the upper surface layer raw material and the lower surface layer raw material by using a single high-speed mixer for later use;
s3, adding the mixed main material, upper surface layer raw material and lower surface layer raw material into a main extruder, an auxiliary extruder and an auxiliary two extruder respectively, and performing melt co-extrusion and sheet casting to obtain a three-layer thick sheet base material consisting of an upper surface layer, a core layer and a lower surface layer;
and S4, feeding the three-layer thick base material into an oven, performing synchronous biaxial stretching and shaping, and then rolling and slitting to obtain the antibacterial BOPA film.
Comparative example 3:
the method comprises the following steps:
s1, according to weight fraction: the core layer is made of 100% of PA 6; the upper surface layer raw material and the lower surface layer raw material are respectively 90% of PA6, 3% of silver-zinc composite antibacterial agent, 6% of sodium stearate, 0.5% of heat-resistant auxiliary agent and 0.5% of Irganox 1076;
s2, mixing the main material, the upper surface layer raw material and the lower surface layer raw material by using a single high-speed mixer for later use;
s3, adding the mixed main material, upper surface layer raw material and lower surface layer raw material into a main extruder, an auxiliary first extruder and an auxiliary second extruder respectively, and obtaining a three-layer thick sheet base material consisting of an upper surface layer, a core layer and a lower surface layer through melt co-extrusion and sheet casting;
and S4, feeding the three-layer thick sheet base material into an oven, performing synchronous biaxial stretching and shaping, and then rolling and slitting to obtain the antibacterial BOPA film.
The antibacterial BOPA films prepared in comparative examples 1-3 were tested according to the test standard QB/T2591-:
compared with the examples 1 to 4, the silver powder, the nano titanium dioxide powder and the silver-zinc composite microbial inoculum applied in the comparative example have poor antibacterial property to staphylococcus aureus, escherichia coli and salmonella.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (5)
1. The manufacturing method of the antibacterial BOPA film is characterized by comprising the following steps:
s1, according to parts by weight: the core layer is made of 100% of PA 6; the upper surface layer raw material and the lower surface layer raw material are 86-90% of PA6, 3-6% of silver, zinc and titanium dioxide composite antibacterial agent, 3-9% of slipping agent, 0.5-1% of heat-resistant assistant and 0.5-1% of antioxidant;
s2, mixing the main material, the upper surface layer raw material and the lower surface layer raw material by using a single high-speed mixer for later use;
s3, adding the mixed main material, upper surface layer raw material and lower surface layer raw material into a main extruder, an auxiliary extruder and an auxiliary two extruder respectively, and performing melt co-extrusion and sheet casting to obtain a three-layer thick sheet base material consisting of an upper surface layer, a core layer and a lower surface layer;
s4, enabling the three-layer thick base material to enter an oven, performing synchronous biaxial stretching and shaping, and then rolling and slitting to obtain the antibacterial BOPA film;
the preparation method of the silver, zinc and titanium dioxide composite antibacterial agent comprises the following steps:
(1) putting zeolite into a muffle furnace, calcining for 1h at 350 ℃, taking out, and crushing to 100 meshes for later use;
(2) taking 10g of zeolite powder in the step (1), adding 10 times of water, stirring, adding a dilute hydrochloric acid solution to adjust the pH value to 2, then adding 4mL of titanium tetrachloride solution with the purity of 99% at normal temperature, heating to 85-90 ℃, preserving heat for 30min, then adding a sodium hydroxide solution to adjust the pH value to 7, and enabling Ti to be Ti 4+ Titanium dioxide is completely generated to form a mixed solution A;
(3) cooling the mixed solution A to 70 ℃, adding a dilute hydrochloric acid solution to adjust the pH value to 3, adding 2-4g of silver nitrate and 2-4g of zinc nitrate, and reacting for 30 min;
(4) filtering, washing filter residue with deionized water, drying at 100 ℃, and crushing to obtain the silver, zinc and titanium dioxide composite antibacterial agent.
2. The method of claim 1, wherein the zeolite has a cation exchange capacity of 96mmol/100 g.
3. The method for manufacturing antibacterial BOPA film according to claim 2, wherein the step (2) and the step (3) are all magnetically stirred.
4. The method of claim 2, wherein the slip agent is sodium stearate.
5. The process for preparing antibacterial BOPA film according to claim 1, wherein the antioxidant is Irganox 1076.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011554727.6A CN112679944B (en) | 2020-12-24 | 2020-12-24 | Manufacturing method of antibacterial BOPA film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011554727.6A CN112679944B (en) | 2020-12-24 | 2020-12-24 | Manufacturing method of antibacterial BOPA film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112679944A CN112679944A (en) | 2021-04-20 |
| CN112679944B true CN112679944B (en) | 2022-08-19 |
Family
ID=75452992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011554727.6A Active CN112679944B (en) | 2020-12-24 | 2020-12-24 | Manufacturing method of antibacterial BOPA film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112679944B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR890010067A (en) * | 1987-12-26 | 1989-08-05 | 다까하시 요시오 | Method for producing a dispersion containing antimicrobial powder |
| CN109774281A (en) * | 2019-03-25 | 2019-05-21 | 厦门长塑实业有限公司 | A kind of antimicrobial form high-barrier easily tears composite membrane and preparation method thereof |
| KR20190093338A (en) * | 2018-02-01 | 2019-08-09 | (주)디이산업 | Polyethylene resin composition having antibiotic action, scratch resistance, slip property and scale resistance and product manufactured using the polyethylene resin composition |
| CN110576665A (en) * | 2019-08-02 | 2019-12-17 | 安徽国风塑业股份有限公司 | antibacterial biodegradable biaxially-oriented polylactic acid film and preparation method thereof |
-
2020
- 2020-12-24 CN CN202011554727.6A patent/CN112679944B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR890010067A (en) * | 1987-12-26 | 1989-08-05 | 다까하시 요시오 | Method for producing a dispersion containing antimicrobial powder |
| KR20190093338A (en) * | 2018-02-01 | 2019-08-09 | (주)디이산업 | Polyethylene resin composition having antibiotic action, scratch resistance, slip property and scale resistance and product manufactured using the polyethylene resin composition |
| CN109774281A (en) * | 2019-03-25 | 2019-05-21 | 厦门长塑实业有限公司 | A kind of antimicrobial form high-barrier easily tears composite membrane and preparation method thereof |
| CN110576665A (en) * | 2019-08-02 | 2019-12-17 | 安徽国风塑业股份有限公司 | antibacterial biodegradable biaxially-oriented polylactic acid film and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 锌－铈抗菌白炭黑/BOPA 复合薄膜的制备及抗菌性能;林凤龙;《塑料工业》;20200930;第48卷(第9期);105-108 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112679944A (en) | 2021-04-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102660160B (en) | Silica-coated silver core composite particles and their preparation method and use | |
| CN109054145B (en) | Antibacterial polyethylene food packaging film and preparation method thereof | |
| CN105191936B (en) | Nano-Zinc antibiotic complex and its preparation method and application | |
| CN109432507B (en) | Antibacterial hydroxyapatite composite material containing metal oxide and preparation method thereof | |
| CN110934153B (en) | Zirconium phosphate carrier, zirconium phosphate copper-carrying antibacterial agent, zirconium phosphate antibacterial agent, preparation method and application thereof | |
| CN107805427B (en) | Preparation method of magnesium oxide/graphene antibacterial coating | |
| CN101869988A (en) | Method for preparing water base nano silver | |
| CN112679944B (en) | Manufacturing method of antibacterial BOPA film | |
| CN111034720A (en) | Preparation method of zinc oxide-metal organic framework composite antibacterial material | |
| Xu et al. | Preparation and antibiofilm properties of zinc oxide/porous anodic alumina composite films | |
| WO2022166705A1 (en) | Anti-agglomeration sustained-release inorganic antibacterial material and preparation method therefor | |
| CN112210094A (en) | Antibacterial agent-containing slow-release porous aerogel PET color master batch and preparation method thereof | |
| CN105624443A (en) | Preparation method for ultra-thin Al2O3 dispersion strengthened copper materials | |
| CN110922661B (en) | Inorganic nano antibacterial plastic, preparation method thereof and application thereof in water supply pipe | |
| CN114557365B (en) | Composite nano zinc oxide, nano slurry, and preparation method and application thereof | |
| CN114957748B (en) | Antibacterial food packaging film and preparation method thereof | |
| KR101798776B1 (en) | The manufacturing methods of the hybrid composite ZnO/Graphene oxide for antibacterial activity | |
| CN113841708B (en) | Silver sulfide/molybdenum disulfide/acidified attapulgite nano composite light-driven antibacterial material and preparation method and application thereof | |
| CN107936804A (en) | A kind of cold lead ingot granulator surface coating | |
| CN112021334B (en) | Porous copper powder carrier-loaded silver-based antibacterial material and preparation method thereof | |
| CN107129282A (en) | A kind of ceramic material and preparation method thereof | |
| CN109161127B (en) | Antibacterial polyvinyl chloride pipe and preparation method thereof | |
| CN114437371A (en) | Preparation method of casein-based nano hybrid hydrogel based on double cross-linking mechanism | |
| CN113603914A (en) | Anthocyanin-coated modified layered clay/polyvinyl alcohol nano composite membrane and preparation method thereof | |
| CN113229292B (en) | Cu/C composite nanosheet material and preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Bi Hongzhi Inventor after: Zhao Yongchang Inventor after: Gao Cheng Inventor before: Bi Hongzhi Inventor before: Zhao Yongchang Inventor before: Gao Cheng |