CN113930980A - Antibacterial PVC leather and preparation method thereof - Google Patents
Antibacterial PVC leather and preparation method thereof Download PDFInfo
- Publication number
- CN113930980A CN113930980A CN202111344074.3A CN202111344074A CN113930980A CN 113930980 A CN113930980 A CN 113930980A CN 202111344074 A CN202111344074 A CN 202111344074A CN 113930980 A CN113930980 A CN 113930980A
- Authority
- CN
- China
- Prior art keywords
- pvc
- parts
- attapulgite
- antibacterial
- nano
- 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.)
- Pending
Links
- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 53
- 239000010985 leather Substances 0.000 title claims abstract description 36
- 238000002360 preparation method Methods 0.000 title claims abstract description 26
- 229960000892 attapulgite Drugs 0.000 claims abstract description 78
- 229910052625 palygorskite Inorganic materials 0.000 claims abstract description 78
- -1 rare earth cerium oxide Chemical class 0.000 claims abstract description 35
- 239000003242 anti bacterial agent Substances 0.000 claims abstract description 34
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 25
- 229910000420 cerium oxide Inorganic materials 0.000 claims abstract description 24
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000004014 plasticizer Substances 0.000 claims abstract description 19
- 239000002994 raw material Substances 0.000 claims abstract description 17
- 239000011347 resin Substances 0.000 claims abstract description 14
- 229920005989 resin Polymers 0.000 claims abstract description 14
- 239000000203 mixture Substances 0.000 claims abstract description 12
- 239000003381 stabilizer Substances 0.000 claims abstract description 11
- 238000003490 calendering Methods 0.000 claims abstract description 10
- 239000002649 leather substitute Substances 0.000 claims abstract description 9
- 239000004744 fabric Substances 0.000 claims abstract description 8
- 238000000465 moulding Methods 0.000 claims abstract description 8
- 239000011265 semifinished product Substances 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims abstract description 6
- 238000005187 foaming Methods 0.000 claims abstract description 5
- 238000003801 milling Methods 0.000 claims abstract description 3
- 230000002194 synthesizing effect Effects 0.000 claims abstract description 3
- 239000000843 powder Substances 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 claims description 16
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 15
- 230000003385 bacteriostatic effect Effects 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 12
- 239000004927 clay Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 238000001291 vacuum drying Methods 0.000 claims description 10
- 229910019142 PO4 Inorganic materials 0.000 claims description 8
- 239000010452 phosphate Substances 0.000 claims description 8
- 229910001961 silver nitrate Inorganic materials 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 8
- 239000000725 suspension Substances 0.000 claims description 8
- 238000005406 washing Methods 0.000 claims description 8
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethyl mercaptane Natural products CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 claims description 6
- DGVVWUTYPXICAM-UHFFFAOYSA-N β‐Mercaptoethanol Chemical compound OCCS DGVVWUTYPXICAM-UHFFFAOYSA-N 0.000 claims description 6
- 239000004593 Epoxy Substances 0.000 claims description 5
- UHOVQNZJYSORNB-UHFFFAOYSA-N benzene Substances C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 5
- 239000004088 foaming agent Substances 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 4
- 239000006228 supernatant Substances 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 2
- 230000010355 oscillation Effects 0.000 claims description 2
- 125000002467 phosphate group Chemical group [H]OP(=O)(O[H])O[*] 0.000 claims description 2
- 230000008569 process Effects 0.000 claims description 2
- 238000012216 screening Methods 0.000 claims description 2
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 2
- 238000009991 scouring Methods 0.000 claims 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract description 27
- 230000002195 synergetic effect Effects 0.000 abstract description 3
- 239000004800 polyvinyl chloride Substances 0.000 description 39
- 229920000915 polyvinyl chloride Polymers 0.000 description 38
- 239000010410 layer Substances 0.000 description 14
- 229910052709 silver Inorganic materials 0.000 description 13
- 239000004332 silver Substances 0.000 description 13
- 239000000523 sample Substances 0.000 description 12
- 238000012360 testing method Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 9
- 239000000047 product Substances 0.000 description 7
- 241000894006 Bacteria Species 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 238000004049 embossing Methods 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- SHLNMHIRQGRGOL-UHFFFAOYSA-N barium zinc Chemical group [Zn].[Ba] SHLNMHIRQGRGOL-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000003607 modifier Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 238000007873 sieving Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- FFRBMBIXVSCUFS-UHFFFAOYSA-N 2,4-dinitro-1-naphthol Chemical compound C1=CC=C2C(O)=C([N+]([O-])=O)C=C([N+]([O-])=O)C2=C1 FFRBMBIXVSCUFS-UHFFFAOYSA-N 0.000 description 1
- 241000228245 Aspergillus niger Species 0.000 description 1
- 239000004156 Azodicarbonamide Substances 0.000 description 1
- 108010077805 Bacterial Proteins Proteins 0.000 description 1
- 239000004604 Blowing Agent Substances 0.000 description 1
- 241000191940 Staphylococcus Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- XOZUGNYVDXMRKW-AATRIKPKSA-N azodicarbonamide Chemical group NC(=O)\N=N\C(N)=O XOZUGNYVDXMRKW-AATRIKPKSA-N 0.000 description 1
- 235000019399 azodicarbonamide Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 239000013068 control sample Substances 0.000 description 1
- 239000011258 core-shell material Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005543 nano-size silicon particle Substances 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
- A01N59/16—Heavy metals; Compounds thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0063—Inorganic compounding ingredients, e.g. metals, carbon fibres, Na2CO3, metal layers; Post-treatment with inorganic compounds
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/007—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by mechanical or physical treatments
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2203/00—Macromolecular materials of the coating layers
- D06N2203/06—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06N2203/068—Polyurethanes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2209/00—Properties of the materials
- D06N2209/16—Properties of the materials having other properties
- D06N2209/1671—Resistance to bacteria, mildew, mould, fungi
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2211/00—Specially adapted uses
- D06N2211/12—Decorative or sun protection articles
- D06N2211/28—Artificial leather
Abstract
The application relates to the technical field of artificial leather, and particularly discloses antibacterial PVC leather and a preparation method thereof. The antibacterial PVC leather comprises a base cloth layer and a PVC layer, wherein the PVC layer is prepared from the following raw materials in parts by weight: 60-80 parts of PVC resin, 1-10 parts of nano silver-carrying attapulgite antibacterial agent, 0.5-3 parts of nano titanium dioxide, 1-3 parts of rare earth cerium oxide, 40-80 parts of plasticizer and 0.5-2 parts of stabilizer; the preparation method comprises the following steps: PVC layer: mixing the raw materials in corresponding parts by weight to obtain a mixture; carrying out banburying, milling and calendaring molding on the mixture; synthesizing: and (3) attaching the PVC layer and the base fabric to obtain a semi-finished product, and performing foaming treatment on the semi-finished product to obtain the antibacterial PVC artificial leather. The nano silver-loaded attapulgite antibacterial agent, the nano titanium dioxide and the rare earth cerium oxide have a synergistic effect, so that the antibacterial property of the PVC layer is improved, and the PVC leather has excellent antibacterial property and mechanical property.
Description
Technical Field
The application relates to the technical field of artificial leather, in particular to antibacterial PVC leather and a preparation method thereof.
Background
The paste made of polyvinyl chloride (PVC) added with plasticizer and stabilizer is easy to be colored, and after the coating layer is gelatinized, the artificial leather with the appearance similar to leather can be made by printing, embossing or embossing and printing. Although the air permeability and moisture permeability of the artificial leather are inferior to those of natural leather, the artificial leather has certain strength and wear resistance, is particularly simple and convenient to produce, rich in raw materials, uniform in product quality, convenient to cut and use, light in weight, water-resistant and low in cost, and is widely used for manufacturing clothes, shoes, hats, cases, furniture, ornaments and various industrial accessories.
However, additives such as plasticizers and stabilizers can become a nutrient source for bacteria and mold, and cause mildew on artificial leather for a long time, thus endangering the health and safety of users.
In view of the above-mentioned related art, the PVC leather of the inventor has a problem of poor antibacterial property, thus limiting the use and development thereof.
Disclosure of Invention
In order to improve the antibacterial property of the PVC leather, the application provides antibacterial PVC leather and a preparation method thereof.
First aspect, the application provides an antibacterial PVC leather, adopts following technical scheme:
the antibacterial PVC leather comprises a base cloth layer and a PVC layer, wherein the PVC layer is prepared from the following raw materials in parts by weight: 60-80 parts of PVC resin, 1-10 parts of nano silver-carrying attapulgite antibacterial agent, 0.5-3 parts of nano titanium dioxide, 1-3 parts of rare earth cerium oxide, 40-80 parts of plasticizer and 0.5-2 parts of stabilizer.
By adopting the technical scheme, the attapulgite has a unique chain lamellar structure, a larger specific surface area and a strong adsorption force, silver particles can be well attached to the attapulgite, and the formed nano silver-carrying attapulgite antibacterial agent has higher activity, can slowly release silver ions necessary for antibiosis and has stronger antibacterial performance;
on the one hand, the rare earth cerium oxide can catalyze a system consisting of silver ions, water and air to generate O due to the catalytic action of the rare earth cerium oxide2 2-And OH active free radical, the active free radical can decompose the organic matter of the bacterium effectively, make the bacterium protein mutate, thus inhibit the existence of the bacterium, play a good antibacterial role; on the other hand, the rare earth cerium oxide has complexityThe electronic structure of (2) has 4f orbital electrons, and the 4f electrons are easy to excite, so that the coordination of the rare earth cerium oxide is variable, and the ionic valence states of the rare earth cerium oxide are easy to convert. The rare earth cerium oxide can obtain electrons and lose electrons, namely a new energy level is inserted into the nano titanium dioxide, so that the spectral response range of the titanium dioxide is expanded, high-activity electrons and holes generated by the nano titanium dioxide are promoted to enable oxygen molecules and water molecules in the air to form hydroxyl radicals with extremely strong reactivity, and the bacteriostatic action is achieved; besides, the rare earth cerium oxide strives for electrons to reduce the photo-generated electrons e on the surface of the nano titanium dioxide-And h for generating holes-So that more hydroxyl radicals are generated on the surface of the nano titanium dioxide.
Therefore, the antibacterial performance of the PVC leather is improved by adding the nano silver-carrying attapulgite antibacterial agent, the rare earth cerium oxide and the nano titanium dioxide into the PVC leather under the combined action of the nano silver-carrying attapulgite antibacterial agent, the rare earth cerium oxide and the nano titanium dioxide.
Preferably, the preparation method of the nano silver-loaded attapulgite antibacterial agent comprises the following steps:
s1, dispersing the attapulgite clay in water, and standing after ultrasonic oscillation; taking the supernatant, and drying in vacuum to obtain purified attapulgite clay; grinding and screening the obtained purified attapulgite clay to obtain nano attapulgite powder;
s2, adding the nano attapulgite powder and solid mercaptoethanol into water, ultrasonically dispersing, centrifuging, washing, and vacuum drying to obtain modified nano attapulgite powder;
s3, adding the modified nano attapulgite powder and solid PVP into an ethylene glycol solution, and performing ultrasonic dispersion to obtain a suspension;
s4, adding silver nitrate powder into the suspension, stirring, centrifuging, washing, and vacuum drying to obtain the nano silver-carrying attapulgite antibacterial agent.
By adopting the technical scheme, a plurality of nuclei for the growth of silver particles are formed on the surface of the attapulgite after the surface sulfitation treatment, silver ions are reduced into silver particles by ethylene glycol and are continuously gathered on the nuclei on the surface of the attapulgite under the synergistic action of PVP, and the formed nano silver-carrying attapulgite antibacterial agent has good antibacterial property; and the preparation process is simple, the operation is easy, and the reaction effect is high.
Preferably, the particle size of the nano attapulgite powder is 200-500 meshes.
By adopting the technical scheme, the particle size of the nano attapulgite powder is optimized, so that silver particles can be better attached to the nano attapulgite.
Preferably, the plasticizer is a phosphate, epoxy or o-benzene plasticizer.
By adopting the technical scheme, the phosphate, epoxy or o-benzene plasticizer can weaken the secondary valence bonds among resin molecules, increase the mobility of the resin molecular bonds, reduce the crystallinity of the resin molecules, increase the plasticity of the resin molecules, enhance the flexibility and facilitate the processing.
Preferably, the raw materials also comprise 1-2 parts of foaming agent.
By adopting the technical scheme, the foaming agent has higher surface activity, can effectively reduce the surface tension of liquid, is arranged on the surface of the liquid film by the double electronic layers to surround air to form bubbles, and then forms foam by single bubbles, thereby meeting the special requirements of products.
Preferably, the raw material also comprises 1-3 parts by weight of matting resin.
By adopting the technical scheme, the modifier is selected as the extinction resin, calcium carbonate is not added, the specific gravity of the product is not increased, and the mechanical property index of the PVC leather can be ensured.
In a second aspect, the application provides a preparation method of antibacterial PVC leather, which adopts the following technical scheme:
a preparation method of antibacterial PVC leather comprises the following steps:
PVC layer: mixing the raw materials in corresponding parts by weight to obtain a mixture; carrying out banburying, milling and calendaring molding on the mixture;
synthesizing: and (3) attaching the PVC layer and the base fabric to obtain a semi-finished product, and performing foaming treatment on the semi-finished product to obtain the antibacterial PVC artificial leather.
By adopting the technical scheme, the method for preparing the antibacterial PVC leather by adopting the calendering method is simple, and the antibacterial PVC leather has excellent antibacterial performance, high surface brightness, good scratch resistance, environmental friendliness and high product grade.
Preferably, the banburying time is 2-4 min.
Preferably, the steam pressure during the opening is 0.4 to 1 MPa.
Preferably, the calendering molding process adopts four-roller calendering molding, wherein the temperature of the first roller is 140-.
By adopting the technical scheme, the banburying time, the steam pressure and the temperatures of the four rollers are optimized, so that the antibacterial PVC leather can be prepared better.
In summary, the present application has the following beneficial effects:
1. because the nano silver-loaded attapulgite antibacterial agent, the rare earth cerium oxide and the nano titanium dioxide have antibacterial effects and the rare earth cerium oxide has promotion effect on the antibacterial effects of the nano silver-loaded attapulgite antibacterial agent and the nano titanium dioxide, the antibacterial effect of the PVC leather is improved under the combined action of the nano silver-loaded attapulgite antibacterial agent, the rare earth cerium oxide and the nano titanium dioxide;
2. the attapulgite in the application has larger specific surface area and strong adsorption force after being treated by the mercaptoethanol and the PVP, silver ions are reduced into silver particles by the ethylene glycol and are continuously gathered on the surface of the attapulgite under the action of the PVP, and the PVP used as a stabilizer not only promotes the gathering of the silver particles on the surface of the attapulgite, but also stabilizes the attachment of the silver particles on the attapulgite;
3. the antibacterial PVC leather prepared by the calendering method has excellent antibacterial property, high surface brightness, environmental protection and high product grade.
Detailed Description
The present application is described in further detail below with reference to preparation examples and examples.
Preparation and related materials used in the examples:
average particle size of attapulgite clay325 mesh, the density of the mercapto ethanol is 1.115kg/m3The density of PVP is 1.144g/cm3The density of ethylene glycol was 1.113g/cm3The purity of the silver nitrate powder is more than 99.8 percent, the average grain diameter of the nano titanium dioxide is 5nm, and the density of the rare earth cerium oxide is 7.13g/cm3The foaming agent is azodicarbonamide, and the stabilizer is barium zinc stabilizer. (the selection of blowing agents and stabilizers in the present application is not limited thereto)
Preparation example
Preparation example 1
The preparation example prepares a nano silver-carrying attapulgite antibacterial agent, and the specific method comprises the following steps:
s1, dispersing 100g of attapulgite clay in 1000mL of water, ultrasonically dispersing the attapulgite clay for 30 at 1000W of power, and standing the attapulgite clay for 20min at room temperature; taking the supernatant, and vacuum-drying at 40 deg.C for 24 hr to obtain pure attapulgite; grinding attapulgite, and sieving with a 200-mesh sieve to obtain nano attapulgite powder;
s2, putting 100g of the nano attapulgite powder and 50g of solid mercaptoethanol into 500mL of water, ultrasonically dispersing for 24h at 1000W at room temperature, centrifuging at 2000r/min, washing for 3 times by using water and 98% ethanol respectively, and vacuum drying for 24h at 40 ℃ to obtain modified nano attapulgite powder;
s3, sequentially adding 10g of the modified nano attapulgite powder and 50g of solid PVP into 2000mL of water, and ultrasonically dispersing at the power of 1000W for 12h at room temperature to obtain a suspension;
s4, adding 50g of silver nitrate powder into 100g of the suspension, magnetically stirring at room temperature for 12h, centrifuging at 3000r/min, washing with water for 3 times, and vacuum drying at 40 ℃ for 24h to obtain the nano silver-loaded attapulgite antibacterial agent.
Preparation example 2
The preparation example prepares a nano silver-carrying attapulgite antibacterial agent, and the specific method comprises the following steps:
s1, dispersing 100g of attapulgite clay in 1000mL of water, ultrasonically dispersing for 50min at 1000W, and standing for 30min at room temperature; taking the supernatant, and vacuum-drying at 40 deg.C for 48h to obtain pure attapulgite; grinding attapulgite, and sieving with a 200-mesh sieve to obtain nano attapulgite powder;
s2, putting 100g of the nano attapulgite powder and 50g of solid mercaptoethanol into 500mL of water, ultrasonically dispersing for 48h at 1000W at room temperature, centrifuging at 2000r/min, washing for 5 times by using water and 98% ethanol respectively, and vacuum drying for 48h at 40 ℃ to obtain modified nano attapulgite powder;
s3, sequentially adding 10g of the modified nano attapulgite powder and 50g of solid PVP into 2000mL of water, and ultrasonically dispersing at the power of 1000W for 24 hours at room temperature to obtain a suspension;
s4, adding 50g of silver nitrate powder into 100g of the suspension, magnetically stirring for 24h at room temperature, centrifuging at 5000r/min, washing for 5 times with water, and vacuum drying for 48h at 40 ℃ to obtain the nano silver-loaded attapulgite antibacterial agent.
Examples
Examples 1 to 17
As shown in Table 1, examples 1-17 differ primarily in the raw material ratios of the PVC layers.
The following description will be given by taking example 1 as an example. The embodiment of the application discloses antibacterial PVC leather, including PVC layer and base cloth layer.
Wherein the PVC layer is prepared by taking 40kg of PVC resin, 1kg of nano silver-loaded attapulgite antibacterial agent, 0.5kg of nano silicon dioxide, 1kg of rare earth cerium oxide, 40kg of phosphate plasticizer and 0.5kg of barium zinc stabilizer as raw materials; wherein the nano silver-carrying attapulgite antibacterial agent is obtained by the preparation example 1.
The application also discloses a preparation method of the antibacterial PVC leather, which comprises the following steps:
s10, PVC layer: s101, weighing the raw materials according to the formula, placing the raw materials in a high-speed stirrer, and mixing and stirring at a high speed for 8min to form a mixture;
s102, putting the mixture into an internal mixer for plasticizing for 2min, wherein the internal mixing temperature is 130 ℃;
s103, discharging the mixture to an open mill after internal mixing is finished, and performing plastication on the mixture at the temperature of 130 ℃ through two open mills in sequence, wherein the first open mill performs coarse refining on the mixture under the conditions that the roller spacing is 3mm and the steam pressure is 0.5Mpa, and the second open mill performs refining on the mixture under the conditions that the roller spacing is 2mm and the steam pressure is 0.4 Mpa;
s104, putting the plasticized materials into a four-roller machine for calendering and molding to obtain a PVC layer, wherein the temperature of a first roller is 120 ℃, the temperature of a second roller is 140 ℃, the temperature of a third roller is 165 ℃, and the temperature of a fourth roller is 160 ℃;
s11, synthesis: adhering the PVC layer to the base cloth to prepare a semi-finished product; and (3) sending the semi-finished product into a foaming embossing machine, and carrying out foaming (embossing) treatment at the temperature of 190 ℃ to obtain the antibacterial PVC leather.
TABLE 1 proportioning of the raw materials for PVC layer in examples 1-17
Example 18
Example 18 differs from example 10 in that the phosphate ester plasticizer is replaced with an epoxy plasticizer.
Example 19
Example 19 differs from example 10 in that the phosphate ester plasticizer was replaced with an o-benzene plasticizer.
Example 20
The difference between the embodiment and the embodiment 16 is that in the preparation method, the banburying time is 4 min; the steam pressure of the first open mill is 1Mpa, and the steam pressure of the second open mill is 0.8 Mpa; the temperature of the first roller is 140 ℃, the temperature of the second roller is 160 ℃, the temperature of the third roller is 180 ℃, and the temperature of the fourth roller is 180 ℃.
Example 21
The difference between the embodiment and the embodiment 16 is that the nano silver-carrying attapulgite antibacterial agent in the raw materials is obtained by the preparation example 2.
Comparative example
Comparative example 1
The difference between the comparative example and the example 8 is that the nano titanium dioxide and the rare earth cerium oxide are replaced by the nano silver-loaded attapulgite antibacterial agent.
Comparative example 2
The difference between the embodiment and the embodiment 8 is that the rare earth cerium oxide is replaced by the nano silver-loaded attapulgite antibacterial agent.
Comparative example 3
The difference between the embodiment and the embodiment 8 is that the nano titanium dioxide is replaced by the nano silver-loaded attapulgite antibacterial agent.
Comparative example 4
The difference between the embodiment and the embodiment 8 is that the nano silver-carrying attapulgite antibacterial agent is replaced by silver nitrate.
Performance test
The bacteriostatic PVC leathers obtained in examples 1 to 21 were used as test samples 1 to 21 in the same weight, and the bacteriostatic PVC leathers obtained in comparative examples 1 to 4 in the same mass as the test samples were used as control samples 1 to 4. The test sample and the control sample were subjected to performance measurement, and the results are shown in Table 2.
First, antibacterial property
And (4) according to QB/T4715-2014, measuring the antibacterial rate of corresponding test samples and control samples, recording data and analyzing, wherein the test strains are selected from golden yellow staphylococcus and aspergillus niger.
Second, mechanical properties
The mechanical property test is carried out under the conditions that the temperature is 25 ℃ and the humidity is 50 percent, and the test is as follows:
the tensile and elongation at break were determined according to GB/T38612-2020, with a speed of 200mm/min, for the corresponding test and control samples, and the data were recorded and analyzed.
The corresponding test samples, control samples, were tested for peel strength according to GB8808-1988, with test dimensions A method, width 15mm and length 200mm, recorded and analysed.
Table 2 table of performance testing data
Referring to table 2, it can be seen from the combination of examples 2, 4 and 5 that as the content of the nano silver-loaded attapulgite antibacterial agent is increased, the antibacterial property of the sample is improved because the nano silver-loaded attapulgite antibacterial agent has higher activity and can slowly release silver ions.
Referring to table 2, it can be seen from examples 4, 6 and 7 that, as the content of the nano titanium dioxide increases, because the nano titanium dioxide belongs to the photocatalytic antibacterial material, when the nano titanium dioxide is irradiated by light with a certain wavelength, the generated high-activity electrons and holes can enable oxygen molecules and water molecules in the air to react to form hydroxyl radicals with extremely strong activity, and the hydroxyl radicals can effectively decompose organic matters of bacteria, so as to cause variation of bacterial proteins, thereby inhibiting the existence of bacteria, and thus improving the antibacterial property of the sample.
Referring to table 2, it can be seen from examples 6, 8 and 9 that, as the content of the rare earth cerium oxide increases, the antibacterial activity of the sample is improved because the rare earth cerium oxide has an accelerating effect on the antibacterial activity of the nano silver-loaded attapulgite antibacterial agent and the nano titanium dioxide respectively.
Referring to table 2, it can be seen from the combination of example 8 and comparative examples 1 to 3 that the antibacterial properties of the test samples were all decreased when the nano titanium dioxide and the rare earth cerium oxide were replaced with the nano silver-loaded attapulgite antibacterial agent, when the nano titanium dioxide was replaced with the nano silver-loaded attapulgite antibacterial agent, or when the rare earth cerium oxide was replaced with the nano silver-loaded attapulgite antibacterial agent; as shown above, the nano silver-loaded attapulgite antibacterial agent, the nano titanium dioxide and the rare earth cerium oxide have synergistic effect, and have promotion effect on improving the antibacterial property of the sample.
Referring to table 2, it can be seen from the combination of example 8 and comparative example 4 that, when the nano silver-loaded attapulgite antibacterial agent is replaced with silver nitrate, the nano attapulgite and the silver particles form a core-shell structure having high activity and strong antibacterial property, and thus the antibacterial property is due to the antibacterial property of silver nitrate.
Referring to table 2, it can be seen from the combination of examples 1-3 that the mechanical properties of the sample are improved to some extent with the continuous addition of the PVC resin; when the content of the PVC resin in the sample is continuously increased, the antibacterial performance of the sample is in a descending trend.
Referring to table 2, it can be seen from examples 8, 10 and 11 that as the content of the phosphate plasticizer increases, the mechanical properties of the samples are improved and the antibacterial properties of the corresponding samples are reduced.
Referring to table 2, it can be seen from examples 10, 12 and 13 that the samples have excellent antibacterial property and mechanical property by adding a proper amount of barium zinc stabilizer.
Referring to table 2, it can be seen from examples 12, 14 and 15 that the addition of azodicarbonic acid amine as a foaming agent to the sample can meet the special requirements of the product, and does not substantially affect the antibacterial property and mechanical properties of the sample.
Referring to table 2, it can be seen from examples 14, 16 and 17 that the addition of the matting resin as a modifier to the sample can improve the surface brightness of the product, and the sample still has excellent mechanical properties and antibacterial properties.
Referring to table 2, it can be seen in combination with examples 10, 18 and 19 that the samples still have excellent antibacterial properties and mechanical properties when the phosphate-based plasticizer is replaced with an epoxy-based plasticizer or an o-benzene-based plasticizer.
Referring to table 2, it can be seen from the combination of examples 16 and 21 that the samples still have excellent mechanical properties and antibacterial properties when the parameters in the preparation examples are varied within appropriate ranges.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (10)
1. The antibacterial PVC leather is characterized by comprising a base cloth layer and a PVC layer, wherein the PVC layer is prepared from the following raw materials in parts by weight: 60-80 parts of PVC resin, 1-10 parts of nano silver-carrying attapulgite antibacterial agent, 0.5-3 parts of nano titanium dioxide, 1-3 parts of rare earth cerium oxide, 40-80 parts of plasticizer and 0.5-2 parts of stabilizer.
2. Bacteriostatic PVC leather according to claim 1, characterized in that: the preparation method of the nano silver-carrying attapulgite antibacterial agent comprises the following steps:
s1, dispersing the attapulgite clay in water, and standing after ultrasonic oscillation; taking the supernatant, and drying in vacuum to obtain purified attapulgite clay; grinding and screening the obtained purified attapulgite clay to obtain nano attapulgite powder;
s2, adding the nano attapulgite powder and solid mercaptoethanol into water, ultrasonically dispersing, centrifuging, washing, and vacuum drying to obtain modified nano attapulgite powder;
s3, adding the modified nano attapulgite powder and solid PVP into an ethylene glycol solution, and performing ultrasonic dispersion to obtain a suspension;
s4, adding silver nitrate powder into the suspension, stirring, centrifuging, washing, and vacuum drying to obtain the nano silver-carrying attapulgite antibacterial agent.
3. Bacteriostatic PVC leather according to claim 2, characterized in that: the particle size of the nano attapulgite powder is 200-500 meshes.
4. Bacteriostatic PVC leather according to claim 1, characterized in that: the plasticizer is phosphate, epoxy or o-benzene plasticizer.
5. Bacteriostatic PVC leather according to claim 1, characterized in that: the raw materials also comprise 1-2 parts by weight of foaming agent.
6. Bacteriostatic PVC leather according to claim 5, characterized in that: the raw materials also comprise 1-3 parts by weight of matting resin.
7. The method for preparing bacteriostatic PVC leather according to any one of claims 1 to 6, which is characterized in that: the method comprises the following steps:
PVC layer: mixing the raw materials in corresponding parts by weight to obtain a mixture; carrying out banburying, milling and calendaring molding on the mixture;
synthesizing: and (3) attaching the PVC layer and the base fabric to obtain a semi-finished product, and performing foaming treatment on the semi-finished product to obtain the antibacterial PVC artificial leather.
8. The preparation method of the bacteriostatic PVC leather according to claim 7, which is characterized in that: the banburying time is 2-4 min.
9. The preparation method of the bacteriostatic PVC leather according to claim 7, which is characterized in that: the steam pressure during the scouring is 0.4-1 Mpa.
10. The preparation method of the bacteriostatic PVC leather according to claim 7, which is characterized in that: the calendering molding process adopts four-roller calendering molding, wherein the temperature of a first roller is 140 ℃ for 120-.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111344074.3A CN113930980A (en) | 2021-11-15 | 2021-11-15 | Antibacterial PVC leather and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111344074.3A CN113930980A (en) | 2021-11-15 | 2021-11-15 | Antibacterial PVC leather and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113930980A true CN113930980A (en) | 2022-01-14 |
Family
ID=79286479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111344074.3A Pending CN113930980A (en) | 2021-11-15 | 2021-11-15 | Antibacterial PVC leather and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113930980A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114635294A (en) * | 2022-02-22 | 2022-06-17 | 江门市华丽兴新材料有限公司 | Production process of applying formaldehyde odor-removing antibacterial material to PU solvent-free leather |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101138342A (en) * | 2007-09-28 | 2008-03-12 | 上海师范大学 | Nanometer mesoporous cerium oxide carrying silver antimicrobials and method for preparing the same |
| CN101300981A (en) * | 2008-05-15 | 2008-11-12 | 兰州大学 | Nano silver-carrying concave-convex stick anti-bacteria agent and preparation thereof |
| CN102493173A (en) * | 2011-12-15 | 2012-06-13 | 成都富路其鞋业有限公司 | Leather antibacterial treatment agent and antibacterial treatment process for leather |
| CN111455684A (en) * | 2020-04-14 | 2020-07-28 | 昆山阿基里斯新材料科技有限公司 | High-durability antibacterial mildew-proof polyvinyl chloride artificial leather and preparation method thereof |
| EP3719055A1 (en) * | 2019-04-04 | 2020-10-07 | Xiamen Xin De Li Investment & Development Co.,Ltd. | Antibacterial synthetic leather, preparation method and application thereof |
-
2021
- 2021-11-15 CN CN202111344074.3A patent/CN113930980A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101138342A (en) * | 2007-09-28 | 2008-03-12 | 上海师范大学 | Nanometer mesoporous cerium oxide carrying silver antimicrobials and method for preparing the same |
| CN101300981A (en) * | 2008-05-15 | 2008-11-12 | 兰州大学 | Nano silver-carrying concave-convex stick anti-bacteria agent and preparation thereof |
| CN102493173A (en) * | 2011-12-15 | 2012-06-13 | 成都富路其鞋业有限公司 | Leather antibacterial treatment agent and antibacterial treatment process for leather |
| EP3719055A1 (en) * | 2019-04-04 | 2020-10-07 | Xiamen Xin De Li Investment & Development Co.,Ltd. | Antibacterial synthetic leather, preparation method and application thereof |
| CN111455684A (en) * | 2020-04-14 | 2020-07-28 | 昆山阿基里斯新材料科技有限公司 | High-durability antibacterial mildew-proof polyvinyl chloride artificial leather and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 北京金属学会编: "《金属材料与冶金：第八届北京冶金青年优秀科技论文集》", 31 October 2005, 冶金工业出版社 * |
| 李凤生等编著: "《纳米/微米复合技术及应用》", 31 August 2002, 国防工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114635294A (en) * | 2022-02-22 | 2022-06-17 | 江门市华丽兴新材料有限公司 | Production process of applying formaldehyde odor-removing antibacterial material to PU solvent-free leather |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103392613B (en) | Cat litter with high water absorption | |
| CN111492986A (en) | Hydrophilic modified plant fiber cat litter material and preparation method thereof | |
| CN111944178B (en) | Preparation method of nano holocellulose reinforced composite membrane and prepared composite membrane | |
| CN113930980A (en) | Antibacterial PVC leather and preparation method thereof | |
| CN108003495A (en) | A kind of wood moulding Carbon fibe plate and preparation method thereof | |
| CN114316604B (en) | Mildew-proof antibacterial silicone rubber fabric and production process thereof | |
| CN1966852A (en) | Polyurethane synthetic leather grain surface paste and method for preparing same | |
| CN108217776A (en) | It is a kind of to be used to handle medicament at water source of chemical contamination and preparation method thereof | |
| CN112980015B (en) | Preparation method of antibacterial fluorine-containing film | |
| CN108219708A (en) | A kind of preparation method of environmental protection glutinous rice glue | |
| CN112011139A (en) | Biodegradable food packaging material and preparation method thereof | |
| CN110684173A (en) | Super-soft hydrolysis-resistant wet polyurethane resin and preparation method thereof | |
| CN105131336A (en) | Antibacterial agent, preparation method and application thereof | |
| CN109096591A (en) | A kind of absorbent-type vinyon composite material | |
| CN113563702B (en) | Degradable plastic bag and preparation method thereof | |
| CN115197544B (en) | Medical sanitary antibacterial ultraviolet-resistant function filling master batch and application thereof | |
| CN114479346A (en) | Broad-spectrum durable antibacterial granular urea formaldehyde molding compound | |
| CN111321605A (en) | PVB synthetic leather and preparation method thereof | |
| CN108395563B (en) | Preparation method of bacterial cellulose powder | |
| CN113024949A (en) | Graphene luminescent plastic master batch and preparation method thereof | |
| CN102422848A (en) | Preparation method of immobilized glucose oxidase with muscle strengthening function in production process of bread | |
| KR101034603B1 (en) | Method for fabricating agricultural waste particle and method for fabricating the particle | |
| CN109880181A (en) | A kind of mould proof hydrophobic type sponge and preparation method thereof | |
| CN112458622A (en) | Antibacterial mask non-woven fabric and preparation method thereof | |
| CN112646253B (en) | Polyethylene packaging material |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220114 |