A kind of preparation method of hybrid material modified polyester film
A hybrid material and modified polyester technology, which is applied in the field of preparation of hybrid material modified polyester film, can solve the problem of general timeliness of surface functionalization effect, and achieves good polymerization conditions and control, simple operation process, and hydrophobicity. The effect of improved performance
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0026] (1) Hydrolysis and acyl chloride on the surface of the PET film: The polyester film was placed in 2 mol / L sodium hydroxide solution and analytically pure glacial acetic acid successively, and hydrolyzed for 1 h at 70 °C; then the film was placed in In a dilute sulfuric acid solution with a potassium permanganate concentration of 50 g / L (dilute sulfuric acid concentration of 1.2 mol / L), oxidize at 60 °C for 1 h, take out and wash with dilute hydrochloric acid, water and acetone for several times, and place them in an oven Dry at 80°C for 12h; then use a dichloromethane solution of phosphorus pentachloride with a mass-to-volume ratio (w / v) of 30g / L to acid-chloride the polyester film, and seal the reaction at room temperature for 18h. Acetone wash several times.
[0027] (2) Grafting polysiloxane on the surface of the PET film by esterification: put the chlorinated PET sheet into a 1:1 volume ratio of dewatered toluene and a hydroxyl-terminated polysiloxane with a viscosi...
Embodiment 2
[0037] (1) with embodiment 1;
[0038] (2) Grafting polysiloxane on the surface of the PET film by esterification: put the chlorinated PET sheet into a 1:1 volume ratio of dewatered toluene and a hydroxyl-terminated polysiloxane with a viscosity of 8000cSt. In the reaction system, the PET film was fully contacted and immersed, then sealed, and reacted at room temperature for 8 hours. The PET film was taken out and repeatedly washed with anhydrous toluene to remove the unreacted polysiloxane adhering to the film; then washed several times with acetone, and finally washed with deionized water. A PET film of grafted hydroxyl-terminated polysiloxane is prepared; the grafting amount is 0.01 mg / cm 2 .
[0039] (3) Same as Example 1.
Embodiment 3
[0041] (1) with embodiment 1;
[0042] (2) Grafting polysiloxane on the surface of the PET film by esterification: put the chlorinated PET sheet into a 1:1 volume ratio of dewatered toluene and a hydroxyl-terminated polysiloxane with a viscosity of 8000cSt. In the reaction system, the PET film was fully contacted and immersed, then sealed, and reacted at room temperature for 12 hours. The PET film was taken out and repeatedly washed with anhydrous toluene to remove the unreacted polysiloxane adhering to the film; then washed several times with acetone, and finally washed with deionized water. The PET film of grafted hydroxyl-terminated polysiloxane was prepared; the grafting amount was 007 mg / cm 2 .
[0043] (3) Same as Example 1.
PUM
| Property | Measurement | Unit |
|---|---|---|
| grafting amount | aaaaa | aaaaa |
| grafting amount | aaaaa | aaaaa |
| grafting amount | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More