A superhydrophilic self-cleaning oil-water separation membrane and its preparation method and application
An oil-water separation membrane and oil-water separation technology, applied in the field of polymer materials and environmental engineering, can solve the problems of negative impact on the ecosystem, cumbersome operation, low efficiency of oil/water emulsion, etc., and achieve rapid and effective separation, low energy consumption, excellent natural Effect of cleaning and antifouling properties
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0058]The weighed equal mass of PLLA and PDLA are dissolved in an equal volume of chloroform / hexafluoroisopropanol mixed solvent to obtain a mixed solution. The mixed solution is electrospun into a film at a rate of 1 mL / h under 10-20 kV, and then the film is heated at 100 Annealing at ~170℃ for 1h; after mixing 5mg / mL GA Tris solution ((pH=8)) with 1mg / mL TBT alcohol solution in a 4:1 volume ratio, the annealed film is heated at 25℃ Submerged in the above solution to react for 12 hours; then rinsed with distilled water for 1 hour, then dried at 60°C; a super-hydrophilic stereo composite polylactic acid film was obtained.
[0059]Table 1 shows the results of the modified liquid raw materials and their proportions, the reaction time, the contact angle of the obtained film to water, and the hydrophilicity and hydrophobicity of each example and comparative example.
Embodiment 2
[0067]Dissolve the weighed equal mass PLLA and PDLA in an equal volume of chloroform / hexafluoroisopropanol mixed solvent, electrospun into a film at a rate of 1 mL / h at 10-20kV, and then anneal the film at 100-170℃ 1h; After mixing 5mg / mL GA Tris solution and 5mg / mL TBT alcohol solution at a volume ratio of 4:1, immerse the annealed film in the above solution at 25℃ for reaction for 12h; then use distilled water After rinsing for 1 hour, it is dried at 60°C; a super-hydrophilic stereocomposite polylactic acid film is obtained.
Embodiment 3
[0069]Dissolve the weighed equal mass PLLA and PDLA in an equal volume of chloroform / hexafluoroisopropanol mixed solvent, electrospun into a film at a rate of 1 mL / h at 10-20kV, and then anneal the film at 100-170℃ 1h; After mixing 5mg / mL GA Tris solution and 1mg / mL TBT alcohol solution at a volume ratio of 4:1, immerse the annealed film in the above solution for 24h at 25℃; then use distilled water After rinsing for 1 hour, it is dried at 60°C; a super-hydrophilic stereocomposite polylactic acid film is obtained.
PUM
| Property | Measurement | Unit |
|---|---|---|
| concentration | aaaaa | aaaaa |
| concentration | aaaaa | aaaaa |
| contact angle | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More