Method for preparing polymer through-hole material by freezing and demulsifying emulsion and application of through-hole material
A polymer material, polymer technology, applied in separation methods, chemical instruments and methods, life-saving equipment, etc., can solve the problems of time-consuming and energy-consuming, limit the breadth of the emulsion method, and be unsuitable for large-scale industrial production, and achieve the preparation process. Simple and environmentally friendly, with reduced requirements and strong practicability
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Embodiment 1
[0040] Embodiment 1 (diacetone acrylamide and adipate dihydrazide form cross-linking)
[0041] Raw materials and proportions:
[0042] Primer formula:
[0043]
[0044] Pre-emulsion formulation:
[0045]
[0046] Initiator formula:
[0047]
[0048] Post-treatment liquid formula:
[0049]
[0050] Preparation steps:
[0051] (1) Prepare the raw materials in the kettle according to the primer formula, stir and keep warm at 60°C for 20 minutes until the blue light appears; then add emulsifiers and other additives into the water according to the pre-emulsification formula, and add them after they are completely dissolved Other monomers, and emulsified in a high-shear emulsifier to form a stable pre-emulsion, and added dropwise to the kettle after the blue light of the primer appears, and the dropping time is 4 hours;
[0052] (2) 30 minutes after the pre-emulsion was added dropwise, the initiator was added dropwise, and the dropwise addition time was 4 hours.
...
Embodiment 2
[0055] Embodiment 2 (glycidyl acrylate forms cross-linking with triethylenetetramine)
[0056] The raw materials and proportions are as follows:
[0057] Primer formula:
[0058]
[0059] Pre-emulsion formulation:
[0060]
[0061] Post-treatment liquid formula:
[0062]
[0063] Preparation steps are similar to steps in Example 1:
[0064] (1) Mix the raw materials in the kettle according to the primer formula, stir at room temperature for 20 minutes until the blue light appears; then add emulsifiers and other additives into the water according to the pre-emulsification formula, and add other monomers after they are completely dissolved , and emulsify in a high-shear emulsifier to form a stable pre-emulsion, and add it dropwise to the kettle after the blue light of the primer appears, and the dropping time is 6 hours;
[0065] (2) After the dropwise addition is complete, the temperature of the reaction solution is raised to 70° C. to initiate monomer polymerizati...
Embodiment 3
[0068] Embodiment 3 (glycidyl methacrylate and dithiothreitol form cross-linking)
[0069] The raw materials and proportions are as follows:
[0070] Primer formula:
[0071]
[0072] Pre-emulsion formulation:
[0073]
[0074] Post-treatment liquid formula:
[0075]
[0076]
[0077] Preparation steps:
[0078] (1) Prepare the raw materials in the kettle according to the primer formula, stir at 40°C until the blue light appears; then prepare a stable pre-emulsion according to the pre-emulsion formula, and add it dropwise to the kettle after the blue light appears , the dropping time is 6 hours;
[0079] (2) Ten minutes after the dropwise addition of the pre-emulsion started, the temperature was raised to 60° C., and the total dropwise addition time was 6 hours.
[0080] (3) After the dropwise addition of the pre-emulsion, continue to react for 6 hours, cool down to room temperature, add post-treatment solution and stir for 5 minutes, and filter and discharge....
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