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

Preparation of organic/inorganic compound film

A composite film and inorganic technology, applied in the field of compounding and further surface modification, can solve the problems of easy disappearance, large substrate damage, large substrate damage, etc., and achieve improved adhesion, strong reactivity, and reduced transmittance Effect

Active Publication Date: 2011-07-20
BEIJING UNIV OF CHEM TECH
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods more or less have their own obvious shortcomings. With plasma treatment, in addition to introducing hydroxyl groups on the surface, other functional groups such as peroxy groups, ethers, carbonyls (aldehydes, esters), enols, etc. are also eliminated. Introduced to the surface; in addition, the damage of the plasma to the substrate is relatively large
Strong oxidizing agents can damage the base material more and easily pollute the environment
The corona treatment method not only damages the base material, but also costs too much and is easy to disappear after treatment.

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
  • Preparation of organic/inorganic compound film
  • Preparation of organic/inorganic compound film
  • Preparation of organic/inorganic compound film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Direct introduction of a monolayer of amino groups on the surface of hydroxylated PMMA

[0037] Prepare a chloroform solution of 3-aminopropyltriethoxysilane with a concentration of 1% by volume, then immerse the newly prepared surface hydroxylated PMMA film in it, react for 14min, take it out, and put it into an oven for curing Drying time is 12 hours and the temperature is 20°C. After curing, take it out and clean its surface with pure chloroform solvent, and then dry to obtain the PMMA surface as a monolayer of amino groups.

Embodiment 2

[0039] Direct introduction of a monolayer of amino groups on the surface of hydroxylated PET

[0040] Prepare a dichloromethane solution of 3-aminopropyltriethoxysilane, the concentration is 7% by volume, then immerse the freshly prepared surface hydroxylated PET in it, react for 2min, take it out, put it in an oven for curing and drying , the time is 12 hours, and the temperature is 60°C. After solidification, take it out and wash its surface with pure dichloromethane solvent, and then dry to obtain a monolayer of amino groups on the PET surface.

Embodiment 3

[0042] Direct introduction of a monolayer of amino groups on the surface of hydroxylated CPP

[0043] Prepare a chloroform solution of 3-aminopropyltriethoxysilane, the concentration is 17% by volume, then immerse the newly prepared surface hydroxylated CPP in it, react for 8 minutes, take it out, put it in an oven to cure and dry , the time is 12 hours, and the temperature is 50°C. After curing, take it out and wash its surface with pure trichloromethane solvent, and then dry to obtain a monolayer of amino groups on the surface of the polymer.

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
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method of an organic / inorganic composite film, belonging to the technical field of the preparation of composite films. The preparation method of the invention includes the steps that single layers of various functional groups are directly introduced into the surface of a hydroxylated base material; SiO2 layers with different thicknesses are prepared on the surface of the hydroxylated base material; various functional groups are introduced onto the surface of a polymer basic material / a SiO2 composite film and another functional inorganic oxide is introduced onto the surface of the polymer basic material / the SiO2 composite film. The former groups on the hydrophilic surface participate in the reaction with the inorganic oxide so as to improve the compatibility between the organic and the inorganic, thus enhancing the adhesion of the inorganic oxide on an organic transparent film. The preparation method of the invention further prepares a layer of inorganic metal oxides with a special function and reacts a layer of functional groups on the surface of the polymer basic material / the SiO2 composite film so that the preparation method can be widely applied in the field of electronic devices and biology, etc. The preparation method of the invention can be operated at room temperature in moderate conditions and can be used for preparing transparentinorganic layers, the thicknesses of which can be controlled from the nano-size to the micron-size.

Description

Technical field: [0001] The present invention is used to further prepare organic polymer / inorganic oxide composite membranes on the surface of specially modified polymer substrates, especially related to the technical aspects of the composite of various general polymer membranes and inorganic oxides, further modification of the surface, etc. . Background technique: [0002] The preparation of composite films of organic substrates and inorganic oxides is a hot spot in the development of science and industry today. Because the organic / inorganic transparent composite film is not only related to the further in-depth application of polymer materials in the field of packaging materials, but also related to the innovation and cost reduction of materials in the application fields of new materials such as optoelectronic devices, optical materials, and biochips. There are three main methods for preparing such organic / inorganic transparent composite films: self-assembly technology, th...

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): C08J7/04C08J7/12C08J5/18
Inventor 杨万泰甘胜华刘莲英胡进白华栋
Owner BEIJING UNIV OF CHEM TECH