Preparation method of hydrophilic polypropylene hollow fiber microporous membrane
A polypropylene, microporous membrane technology, applied in chemical instruments and methods, membranes, membrane technology and other directions, can solve the problems of expensive pharmaceuticals, poor practical operability, toxic solvents, etc., and achieves long-lasting hydrophilicity. The modification conditions are easy to control and the hydrophilization effect is obvious.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
preparation example Construction
[0022] A kind of preparation method of hydrophilic polypropylene hollow fiber microporous membrane is characterized in that: comprise the steps:
[0023] Step 1, preparing polypropylene primary fibers by melting method;
[0024] In this embodiment, in step 1, the temperature process conditions in each section of the spinning machine when preparing polypropylene primary fibers are 140°C-240°C, the temperature of the spinneret is 80±5°C, and the winding speed is 370-420m / min, the heat treatment temperature is 120°C, and the time is 2h.
[0025] Step 2, preparation of fluorocarbon surfactant solution;
[0026] In this embodiment, the step 2 prepares a fluorocarbon surfactant solution, weighs 1-5g of fluorocarbon surfactant in a beaker, adds an appropriate amount of dichloromethane, stirs until completely dissolved, and then uses distilled water to prepare 1- 5g / L solution.
[0027] Step 3, hydrophilization treatment of polypropylene nascent fibers;
[0028] In this embodimen...
Embodiment 1
[0035] Step 1: Preparation of polypropylene spun fibers by melting method
[0036] Polypropylene primary fiber is prepared by melt spinning method. The temperature process conditions in each section of the spinning machine are 140°C-240°C, the temperature of the spinneret is 80±5°C, the winding speed is 370-420m / min, and the heat treatment temperature is 120°C. ℃, the time is 2h.
[0037] The second step: Fluorocarbon surfactant solution preparation
[0038] Accurately weigh 1g of fluorocarbon surfactant into a beaker, add a certain amount of dichloromethane, stir at room temperature until completely dissolved, and then prepare a solution with a concentration of 1g / L with distilled water.
[0039] Step 3: Hydrophilic treatment of polypropylene as-spun fibers
[0040] Soak the polypropylene primary fiber obtained by melt spinning in the first step into the fluorocarbon surfactant solution prepared in the second step, soak it for 2 hours, take it out and dry it naturally for t...
Embodiment 2
[0047] Step 1: Preparation of polypropylene spun fibers by melting method
[0048] Polypropylene primary fiber is prepared by melt spinning method. The temperature process conditions in each section of the spinning machine are 140°C-240°C, the temperature of the spinneret is 80±5°C, the winding speed is 370-420m / min, and the heat treatment temperature is 120°C. ℃, the time is 2h.
[0049] The second step: Fluorocarbon surfactant solution preparation
[0050] Accurately weigh 2g of fluorocarbon surfactant into a beaker, add a certain amount of dichloromethane, stir at room temperature until completely dissolved, and then prepare a solution with a concentration of 2g / L with distilled water.
[0051] Step 3: Hydrophilic treatment of polypropylene as-spun fibers
[0052]Soak the polypropylene primary fiber obtained by melt spinning in the first step into the fluorocarbon surfactant solution prepared in the second step, soak it for 2 hours, take it out and dry it naturally for th...
PUM
| Property | Measurement | Unit |
|---|---|---|
| contact angle | aaaaa | aaaaa |
| porosity | aaaaa | aaaaa |
| contact angle | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More