CN113563676A - Preparation method of PVC (polyvinyl chloride) antibacterial elevator key protection film - Google Patents
Preparation method of PVC (polyvinyl chloride) antibacterial elevator key protection film Download PDFInfo
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- CN113563676A CN113563676A CN202110820503.3A CN202110820503A CN113563676A CN 113563676 A CN113563676 A CN 113563676A CN 202110820503 A CN202110820503 A CN 202110820503A CN 113563676 A CN113563676 A CN 113563676A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08J2327/06—Homopolymers or copolymers of vinyl chloride
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2483/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2483/04—Polysiloxanes
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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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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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
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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
- C08K9/02—Ingredients treated with inorganic substances
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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
- C08K9/04—Ingredients treated with organic substances
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Abstract
The invention relates to a preparation method of a PVC (polyvinyl chloride) antibacterial elevator key protection film, which is characterized in that modified nano platinum and PVC resin powder are uniformly mixed by a double-screw machine, the mixed PVC resin powder, namely nano platinum powder, a plasticizer and a stabilizer are mixed according to a certain proportion, the rotating speed and the temperature of the screw machine produced in each process are controlled, and then the mixed materials are subjected to banburying, plasticizing and calendaring molding in sequence to prepare the PVC antibacterial elevator key protection film. The PVC antibacterial elevator key protection film is cut into a size suitable for the size and is covered on an elevator key area, so that the transmission of various bacteria, fungi and viruses can be inhibited. The modified nano platinum has strong catalytic power, can catalyze and activate amino, carboxyl, hydroxyl and other groups, and the activated groups can decompose bacterial cell wall and cell membrane structures to break and die bacteria, so that the modified nano platinum has a strong antimicrobial effect, is applied to the PVC antibacterial elevator key protection film, and realizes the antibacterial capability of the PVC antibacterial elevator key protection film.
Description
Technical Field
The invention relates to the technical field of PVC (polyvinyl chloride) antibacterial films for inhibiting microbial growth, in particular to a preparation method of a PVC antibacterial elevator key protective film.
Background
At present, the common PVC antibacterial elevator key protection film in the market does not have the function of inhibiting microorganisms such as bacteria, viruses and the like, and the common PVC film adhered to the elevator key area only can simply protect the elevator key from being polluted and cannot protect a user.
Therefore, a need exists for a PVC antibacterial elevator key protective film that can be attached to the surface of an elevator key, which can prevent microbial growth, block microbial transmission, prevent cross-infection when pressing the elevator key, and can prevent and control the transmission of bacteria and viruses effectively on a daily basis.
Disclosure of Invention
The invention provides a preparation method of a PVC (polyvinyl chloride) antibacterial elevator key protection film.
The invention realizes the purpose through the following technical scheme: a preparation method of a PVC antibacterial elevator key protection film comprises the following steps:
s1, weighing a certain proportion of nano platinum chelate, adding calcium salt and zinc salt powder to uniformly disperse the nano platinum chelate, and pumping water at low temperature under negative pressure to prepare modified nano platinum aid powder;
s2, preparing PVC resin nano platinum gold powder: mixing the nano platinum aid powder prepared in the step S1 with PVC resin powder according to the mass ratio of 1:25, mixing the materials by using a double-screw machine, wherein the screw stirring speed is 200-400 rpm, the stirring time is 30-40S, and the stirring frequency is 3-4 times, so that the two powders can be fully mixed, and the PVC resin nano platinum powder is obtained after mixing;
s3, adding an antioxidant into the PVC resin nano platinum gold powder, wherein the addition amount is 0.3-0.6%; adding organic silicon with the addition amount of 0.5-0.8%; adding calcium carbonate with the addition amount of 0.5-1.3%; adjusting the stirring speed to 420-550 rpm for 80-240 s;
s4, transferring the mixed powder in the S3 into an internal mixer, and adding a plasticizer in a proportion of 6-9%; adjusting the plasticizing temperature to 135-180 ℃ to carry out banburying and plasticizing for 200-450 s;
s5, rolling and pressing the plasticized material obtained in the step S4 into a film through a rolling machine, and then cooling to 40-60 ℃;
and S6, cooling and rolling to obtain the finished product of the PVC antibacterial elevator key protective film.
Preferably, the thickness of the film formed by calendering in the step S5 is 0.1mm to 0.8 mm.
Preferably, the organic silicon in the step S3 is selected from one of silicone resin or chlorosilane.
Preferably, the calcium salt in step S1 is selected from calcium stearate or calcium carbonate.
Preferably, the zinc salt in the step S1 is selected from one of zinc stearate and zinc carbonate.
Compared with the prior art, the preparation method of the PVC antibacterial elevator key protection film has the beneficial effects that:
1. PVC resin powder and modified nano platinum assistant powder are selected as a base material raw material and an antibacterial component of the antibacterial PVC film, the modified nano platinum assistant powder and the PVC base material are combined to form a branched chain molecular rail structure, and antibacterial groups can migrate along the branched chain molecular rail and are uniformly distributed in the whole PVC film.
2. Because the modified nano platinum assistant powder is combined with the PVC resin powder, the antibacterial groups are uniformly distributed in the PVC film, cations are ionized on the surface of the PVC film to form a weak electric field, and the cell wall of bacteria and the cell membrane of viruses both carry anions, the cell wall or the cell membrane of microorganisms can be torn under the action of the electric field, so that the contents overflow, and the microorganisms can not copy genetic information and die; in addition, the modified nano platinum assistant powder has the sterilization effect of catalyzing organic acid, organic amine and the like, so that the sterilization effect can be obviously improved.
Drawings
FIG. 1 shows the results of examining the bactericidal activity of the product obtained in example 1/2/3.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.
The thickness of the PVC antibacterial elevator key protection film is 0.1-0.8 mm.
A preparation method of a PVC antibacterial elevator key protection film comprises the following steps:
s1, weighing a certain proportion of nano platinum chelate, adding calcium salt and zinc salt powder to uniformly disperse the nano platinum chelate, and pumping water at low temperature under negative pressure to prepare modified nano platinum aid powder;
s2, preparing PVC resin nano platinum gold powder: mixing the nano platinum aid powder prepared in the step S1 with PVC resin powder according to the mass ratio of 1:25, mixing the materials by using a double-screw machine, wherein the screw stirring speed is 200-400 rpm, the stirring time is 30-40S, and the stirring frequency is 3-4 times, so that the two powders can be fully mixed, and the PVC resin nano platinum powder is obtained after mixing;
s3, adding an antioxidant into the PVC resin nano platinum gold powder, wherein the addition amount is 0.3-0.6%; adding organic silicon with the addition amount of 0.5-0.8%; adding calcium carbonate with the addition amount of 0.5-1.3%; adjusting the stirring speed to 420-550 rpm for 80-240 s;
s4, transferring the mixed powder in the S3 into an internal mixer, and adding a plasticizer in a proportion of 6-9%; adjusting the plasticizing temperature to 135-180 ℃ to carry out banburying and plasticizing for 200-450 s;
s5, rolling and pressing the plasticized material obtained in the step S4 into a film through a rolling machine, and then cooling to 40-60 ℃;
and S6, cooling and rolling to obtain the finished product of the PVC antibacterial elevator key protective film.
Embodiment 1, a preparation method of a PVC antibacterial elevator key protection film, comprising the following steps:
s1, weighing a certain proportion of nano platinum chelate, adding calcium stearate and zinc carbonate powder to uniformly disperse the nano platinum chelate, and pumping water at low temperature under negative pressure to prepare modified nano platinum aid powder;
s2, preparing PVC resin nano platinum gold powder: 95 parts of PVC resin powder, 5 parts of modified nano platinum assistant powder, mixing materials by a double screw extruder, stirring at a speed of 220rmp for 30s for 3 times, and uniformly mixing to obtain the PVC resin nano platinum powder;
s3, adding an antioxidant into the PVC resin nano platinum gold powder, wherein the addition amount is 0.4%; adding silicone resin with the addition amount of 0.5%; adding calcium carbonate with the addition amount of 0.8%; adjusting the stirring speed to 450rpm, wherein the stirring time is 200 s;
s4, transferring the mixed powder in the S3 into an internal mixer, and adding a plasticizer in an adding proportion of 8%; adjusting the plasticizing temperature to 150 ℃ to carry out banburying and plasticizing for 350 s;
s5, rolling and pressing the plasticized material obtained in the step S4 into a film through a rolling machine, and then cooling to 40 ℃;
and S6, cooling and rolling to obtain the PVC antibacterial elevator key protective film.
Embodiment 2, a preparation method of a PVC antibacterial elevator key protection film, comprising the following steps:
s1, weighing a certain proportion of nano platinum chelate, adding calcium carbonate and zinc carbonate powder to uniformly disperse the nano platinum chelate, and pumping water at low temperature under negative pressure to prepare modified nano platinum aid powder;
s2, preparing PVC resin nano platinum gold powder: 97 parts of PVC resin powder, 3 parts of modified nano platinum assistant powder, mixing materials by a double screw extruder, stirring at a speed of 220rmp for 30s for 3 times, and uniformly mixing to obtain the PVC resin nano platinum powder;
s3, adding an antioxidant into the PVC resin nano platinum gold powder, wherein the addition amount is 0.4%; adding silicone resin with the addition amount of 0.6%; adding calcium carbonate with the addition amount of 1.0 percent; adjusting the stirring speed to 480rpm for 200 s;
s4, transferring the mixed powder in the S3 into an internal mixer, and adding a plasticizer in an adding proportion of 8%; adjusting the plasticizing temperature to 150 ℃ to carry out banburying and plasticizing steps for 300 s;
s5, rolling and pressing the plasticized material obtained in the step S4 into a film through a rolling machine, and then cooling to 40 ℃;
and S6, cooling and rolling to obtain the PVC antibacterial elevator key protective film.
Embodiment 3, a preparation method of a PVC antibacterial elevator key protection film, comprising the following steps:
s1, weighing a certain proportion of nano platinum chelate, adding calcium stearate and zinc stearate salt powder to uniformly disperse the nano platinum chelate, and pumping water at low temperature under negative pressure to prepare modified nano platinum aid powder;
s2, preparing PVC resin nano platinum gold powder: 98 parts of PVC resin powder, 2 parts of modified nano platinum assistant powder, mixing materials by a double screw extruder at a stirring speed of 300rmp for 40s for 4 times, and uniformly mixing to obtain the PVC resin nano platinum powder;
s3, adding an antioxidant into the PVC resin nano platinum gold powder, wherein the addition amount is 0.4%; adding silicone resin with the addition amount of 0.5%; adding calcium carbonate with the addition amount of 0.8%; adjusting the stirring speed to 450rpm, wherein the stirring time is 220 s;
s4, transferring the mixed powder in the S3 into an internal mixer, and adding a plasticizer in an adding proportion of 8%; adjusting the plasticizing temperature to 160 ℃ to carry out banburying and plasticizing for 350 s;
s5, rolling and pressing the plasticized material obtained in the step S4 into a film through a rolling machine, and then cooling to 40 ℃;
and S6, cooling and rolling to obtain the PVC antibacterial elevator key protective film.
The PVC antibacterial elevator key protection film provided by the embodiment of the invention has the characteristics of strong antibacterial and bactericidal performance and good antibacterial effect, and is suitable for being popularized and used for covering elevator keys.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. A preparation method of a PVC antibacterial elevator key protection film is characterized by comprising the following steps:
s1, weighing a certain proportion of nano platinum chelate, adding calcium salt and zinc salt powder to uniformly disperse the nano platinum chelate, and pumping water at low temperature under negative pressure to prepare modified nano platinum aid powder;
s2, preparing PVC resin nano platinum gold powder: mixing the nano platinum aid powder prepared in the step S1 with PVC resin powder according to the mass ratio of 1:25, mixing the materials by using a double-screw machine, wherein the screw stirring speed is 200-400 rpm, the stirring time is 30-40S, and the stirring frequency is 3-4 times, so that the two powders can be fully mixed, and the PVC resin nano platinum powder is obtained after mixing;
s3, adding an antioxidant into the PVC resin nano platinum gold powder, wherein the addition amount is 0.3-0.6%; adding organic silicon with the addition amount of 0.5-0.8%; adding calcium carbonate with the addition amount of 0.5-1.3%; adjusting the stirring speed to 420-550 rpm for 80-240 s;
s4, transferring the mixed powder in the S3 into an internal mixer, and adding a plasticizer in a proportion of 6-9%; adjusting the plasticizing temperature to 135-180 ℃ to carry out banburying and plasticizing for 200-450 s;
s5, rolling and pressing the plasticized material obtained in the step S4 into a film through a rolling machine, and then cooling to 40-60 ℃;
and S6, cooling and rolling to obtain the finished product of the PVC antibacterial elevator key protective film.
2. The preparation method of the PVC antibacterial elevator key protection film according to claim 1, characterized by comprising the following steps: the thickness of the film formed by rolling in the step S5 is 0.1 mm-0.8 mm.
3. The preparation method of the PVC antibacterial elevator key protection film according to claim 1, characterized by comprising the following steps: the organic silicon in the step S3 is selected from one of silicone resin or chlorosilane.
4. The preparation method of the PVC antibacterial elevator key protection film according to claim 1, characterized by comprising the following steps: and in the step S1, calcium salt is selected from calcium stearate or calcium carbonate.
5. The preparation method of the PVC antibacterial elevator key protection film according to claim 1, characterized by comprising the following steps: and in the step S1, zinc salt is selected from zinc stearate or zinc carbonate.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101498061A (en) * | 2009-03-05 | 2009-08-05 | 浙江大学 | Method for improving antibiosis of silk fibroin material |
| WO2015084279A1 (en) * | 2013-12-03 | 2015-06-11 | Istanbul Teknik Universitesi | An antibacterial membrane and a production method thereof |
| CN109054256A (en) * | 2018-09-20 | 2018-12-21 | 浙江逸雅新材料有限公司 | It is a kind of with anti-aging PVC advertisement membrane preparation method |
| CN110918012A (en) * | 2019-04-18 | 2020-03-27 | 张家港耐尔纳米科技有限公司 | Nano platinum sol and preparation method thereof |
| CN111234420A (en) * | 2020-03-31 | 2020-06-05 | 安徽航达环保科技有限公司 | PVC (polyvinyl chloride) antibacterial film and preparation method thereof |
| CN111840132A (en) * | 2020-07-07 | 2020-10-30 | 开贝纳米科技(苏州)有限公司 | Long-acting antibacterial additive for cosmetics and preparation process thereof |
-
2021
- 2021-07-20 CN CN202110820503.3A patent/CN113563676A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101498061A (en) * | 2009-03-05 | 2009-08-05 | 浙江大学 | Method for improving antibiosis of silk fibroin material |
| WO2015084279A1 (en) * | 2013-12-03 | 2015-06-11 | Istanbul Teknik Universitesi | An antibacterial membrane and a production method thereof |
| CN109054256A (en) * | 2018-09-20 | 2018-12-21 | 浙江逸雅新材料有限公司 | It is a kind of with anti-aging PVC advertisement membrane preparation method |
| CN110918012A (en) * | 2019-04-18 | 2020-03-27 | 张家港耐尔纳米科技有限公司 | Nano platinum sol and preparation method thereof |
| CN111234420A (en) * | 2020-03-31 | 2020-06-05 | 安徽航达环保科技有限公司 | PVC (polyvinyl chloride) antibacterial film and preparation method thereof |
| CN111840132A (en) * | 2020-07-07 | 2020-10-30 | 开贝纳米科技(苏州)有限公司 | Long-acting antibacterial additive for cosmetics and preparation process thereof |
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