A kind of preparation method of oil phase polymer hollow fiber array material
A technology of polymer and polymer solution, applied in the field of membrane separation, can solve the problems of low efficiency, no compounding, waste of raw materials, etc., and achieve the effect of simple process and low cost
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0023] A method for preparing an oil-phase polymer hollow fiber array material, characterized in that the preparation method is carried out according to the following steps:
[0024] a. Preparation of oil phase polymer solution
[0025] Add one of these three polymer materials in polyurethane or polyacrylonitrile or polylactic acid to dimethyl sulfoxide or 1,4-dioxane Add dimethyl sulfoxide or 1,4-dioxane After stirring until completely dissolved, the dissolved solution is placed in an environment with a vacuum of 0.05-0.1MPa for 2-5 hours to remove the air bubbles in the solution to obtain an oil-phase polymer with a mass fraction of 1-10%. solution;
[0026] b. Green body preparation of oil phase polymer hollow fiber array material
[0027] Place a through-column mold made of polytetrafluoroethylene with a wall thickness of 3 to 10 mm above a metal conductor made of copper, aluminum or silver, and the metal conductor is soaked in liquid nitrogen, prepared by step a The oi...
Embodiment 1
[0033] a. Preparation of Polyurethane Solution
[0034]Add 0.01g of polyurethane to 0.99g of dimethyl sulfoxide, stir until it is completely dissolved, place the dissolved solution in an environment with a vacuum of 0.05MPa for 2 hours, remove the bubbles in the solution, and obtain a mass fraction of 1%. Polyurethane solution;
[0035] b. Green body preparation of polyurethane hollow fiber array material
[0036] A mold through a column with a wall thickness of 3 mm is placed above the copper conductor, the copper conductor is soaked in liquid nitrogen, and the polyurethane solution prepared in step a is poured into the mold to form a solution layer with a height of 5 mm in the mold. Under the action of liquid nitrogen, the polyurethane solution in the mold solidifies slowly from bottom to top along the vertical direction of the mold to form a columnar body unit with dimethyl sulfoxide as the core and polyurethane as the skin, and the polyurethane hollow wall between adjacen...
Embodiment 2
[0040] a. Preparation of Polyurethane Solution
[0041] Add 2 g of polyurethane to 3.8 g of 1,4-dioxane, stir until it is completely dissolved, place the dissolved solution in an environment with a vacuum of 0.07 MPa for 3 hours, remove the bubbles in the solution, and obtain a mass fraction of 5 % polyurethane solution;
[0042] b. Green body preparation of polyurethane hollow fiber array material
[0043] Place a mold with a wall thickness of 6 mm through the columnar body above the aluminum conductor, soak the aluminum conductor in liquid nitrogen, pour the polyurethane solution prepared in step a into the mold, and form a solution layer with a height of 100 mm in the mold. Under the action of liquid nitrogen, the polyurethane solution in the mold solidifies slowly from bottom to top along the vertical direction of the mold to form a columnar unit with 1,4-dioxane as the core and polyurethane as the skin, and the walls between adjacent units The green body of the polyuret...
PUM
| Property | Measurement | Unit |
|---|---|---|
| pore size | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
| quality score | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More