Dry film hydrophilc agent
A dry film hydrophilic and pharmaceutical technology, which is applied in membrane technology, semi-permeable membrane separation, textiles and papermaking, etc., can solve the problems of mildew and bacterial growth on the surface of membrane materials, so as to improve the shelf life, reduce bacterial growth, The effect of reducing penetration time
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[0041] Example 1
[0042] A membrane hydrophilic agent is prepared from the following components in parts by weight:
[0043]1000 parts of water;
[0044] 40 parts of polyethylene glycol polyethylene phthalate block copolymer;
[0045] 20 parts of ternary copolymer block silicone oil;
[0046] 300 parts of ethanol;
[0047] 6 parts of n-hexanol;
[0048] 5 servings of Tween 80;
[0049] 15 parts of op-10 surfactant;
[0050] 5 parts of sodium bisulfite;
[0051] The above components are mixed by weight and stirred to form a hydrophilic agent.
[0052] The hydrophilic agent is suitable for hollow fiber membranes, flat membranes or roll membranes made of PP, PVDF, PES, PS, PTFE, PE.
[0053] The hydrophilic agent was soaked in the hollow fiber membrane material made of PP for 5 minutes, and baked at a high temperature of 110° C. for 3 minutes. The obtained membrane material has good hydrophilicity, ensures long-term hydrophilicity, reduces the shrinkage rate of the mem...
Example Embodiment
[0057] Example 2
[0058] A dry film hydrophilic agent, the specific components and contents are (parts by weight):
[0059] 1000 parts of water;
[0060] 60 parts of polyethylene glycol polyethylene phthalate block copolymer;
[0061] 15 parts of ternary copolymer block silicone oil;
[0062] 250 parts of ethanol;
[0063] 6 parts of n-hexanol;
[0064] 5 servings of Tween 80;
[0065] 20 parts of op-10 surfactant;
[0066] 5 parts of sodium bisulfite;
[0067] The above components are mixed and homogenized to prepare a hydrophilic agent.
[0068] The hydrophilic agent was soaked in the roll membrane material made of PVDF for 10 minutes, and baked at a high temperature of 120° C. for 5 minutes. The hydrophilicity of the obtained membrane material is obviously improved, and the long-term hydrophilicity is ensured, the water output of the membrane material is increased, and the service life of the membrane material is improved.
[0069] The performance comparison of th...
Example Embodiment
[0072] Example 3
[0073] A dry film hydrophilic agent, the specific components and contents are (parts by weight):
[0074] 1000 parts of water;
[0075] 20 parts of polyethylene glycol polyethylene phthalate block copolymer;
[0076] 20 parts of ternary copolymer block silicone oil;
[0077] 300 parts of ethanol;
[0078] 3 parts of n-hexanol;
[0079] 5 servings of Tween 80;
[0080] 10 parts of op-10 surfactant;
[0081] 5 parts of sodium bisulfite;
[0082] The above components are mixed and homogenized to prepare a hydrophilic agent.
[0083] The hydrophilic agent was soaked in a flat film material made of PES for 10 minutes, and baked at a high temperature of 90° C. for 5 minutes. The hydrophilicity of the obtained membrane material is improved, the rebound rate is obviously increased, the shrinkage rate of the membrane filament is reduced, the membrane filament is hydrophilic for a long time, the water output of the membrane material is increased, and the servi...
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