Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of titanium oxide composite film with antibacterial performance and preparation method thereof

A technology of composite film and titanium oxide, applied in the direction of coating, etc., can solve the problem of weak binding force and achieve strong antibacterial effect

Active Publication Date: 2020-03-10
INST OF OCEANOLOGY - CHINESE ACAD OF SCI
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The application of titanium dioxide photocatalytic materials usually adopts hot sol method, binder mixing method and solgel method to prepare semiconductor films. The problem is that some films have weak bonding force.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of titanium oxide composite film with antibacterial performance and preparation method thereof
  • A kind of titanium oxide composite film with antibacterial performance and preparation method thereof
  • A kind of titanium oxide composite film with antibacterial performance and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Glaze layer preparation: put the unsintered glazed ceramics in a high-temperature resistance furnace, set the initial temperature at about 1500°C with a temperature controller, and fire at a constant temperature for 5 hours to obtain ceramics with a smooth glazed layer. The SEM photo of the glazed layer is figure 1 . Surface effect analysis: In the SEM photo, the surface of the tiles shows a relatively high degree of smoothness, especially the part on the left side of the middle, which is almost completely smooth and flat; the several depressions on the right side are the glazed surface before firing Caused by impurities; the defect in the upper right corner is located at the incision of the tile cutting. Due to the weak combination of the glaze and the ceramic tile substrate, uneven temperature during heating and the influence of the surface tension of the glaze, the glaze is partially warped. . It can be seen that under the determined experimental conditions, the un...

Embodiment 2

[0030] Embodiment 2: The quality of the polyvinyl alcohol solution in the preparation of the glass layer in embodiment 1 is adjusted to 20 grams. Other treatments are the same as in embodiment 1. The surface effect index is 6, and the antibacterial performance test shows good antibacterial performance.

Embodiment 3

[0031] Embodiment 3: The quality of the glass powder in the preparation of the glass layer in Embodiment 1 is adjusted to 4 grams, and other treatments are the same as in Embodiment 1. The surface effect index is 5, and the antibacterial performance test shows good antibacterial performance.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
particle sizeaaaaaaaaaa
melting pointaaaaaaaaaa
Login to View More

Abstract

The invention relates to an antibacterial composite film, in particular to a titanium oxide composite film having antibacterial performance and a preparation method thereof. The composite film includes a bottom layer, a transition layer and an antibacterial layer sequentially. Glaze is the bottom layer, glass is the transition layer, and anatase titanium dioxide is the antibacterial layer. The titanium oxide composite film can be applied to ceramic products and the like. The surfaces of the prepared ceramics are smooth and clean, attractive and silver. It is found through antibacterial tests that the surfaces of tiles have high antibacterial performance. The titanium oxide composite film can be used for manufacturing ground tiles and wall tiles of kitchens and bathrooms, daily sanitary ceramics supplies and handicrafts and the like.

Description

technical field [0001] The invention relates to an antibacterial composite film, in particular to a titanium oxide composite film with antibacterial performance and a preparation method thereof. Background technique [0002] Titanium oxide, especially the anatase type, has photocatalytic properties. When the photon energy irradiated on titanium oxide is greater than the forbidden band width, photogenerated electrons will be generated in the conduction band, and photogenerated holes will be generated in the valence band to form photogenerated electron-hole pairs. The oxidizing reactant contacts the electrons that migrate from the conduction band to the titanium oxide surface, and a reduction reaction occurs; while the reducing reactant combines with the holes that migrate from the valence band to the titanium oxide surface, and an oxidation reaction occurs. In addition, electrons and holes may also recombine and annihilate inside or on the inner surface of titanium oxide, an...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C03C17/34
CPCC03C17/3411C03C2217/70C03C2218/114
Inventor 郑萌蒋全通王秀通
Owner INST OF OCEANOLOGY - CHINESE ACAD OF SCI