Air filter material as well as preparation method and application of air filter material
An air filtration material and substrate technology, applied in filtration and separation, separation methods, dispersed particle filtration, etc., can solve the problems of high resistance and high energy consumption, and achieve the effect of reducing resistance, stable growth process, and good purification effect.
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[0033] Example 1
[0034] The preparation of air filter material includes the following steps:
[0035] 1) Preparation of crystal nucleus: surface treatment of nano tourmaline with a coupling agent to obtain a crystal nucleus composed of a hydrophilic hemisphere and a lipophilic hemisphere. The hydrophilic hemisphere is the part of the nano tourmaline whose surface is not modified by the coupling agent. The oil hemisphere is part of the nano tourmaline whose surface is modified by a coupling agent, wherein the coupling agent is trimethoxysiloxane, and the crystal core particle size is 50 nm;
[0036] 2) Granulation: The crystal nucleus obtained in step 1) is blended with the special polypropylene meltblown material and then melt-extrusioned to obtain intermediate particles doped with crystal nuclei; wherein the melt extrusion temperature of the intermediate particles is 200°C The weight of the crystal nucleus accounts for 0.5% of the total weight of the crystal nucleus and the polyp...
Example Embodiment
[0040] Example 2
[0041] The preparation of air filter material includes the following steps:
[0042] 1) Preparation of crystal nucleus: surface treatment of nano tourmaline with a coupling agent to obtain a crystal nucleus composed of a hydrophilic hemisphere and a lipophilic hemisphere. The hydrophilic hemisphere is the part of the nano tourmaline whose surface is not modified by the coupling agent. The oil hemisphere is part of the nano tourmaline whose surface is modified by a coupling agent; wherein the coupling agent is a mixture of triethoxysiloxane and a titanate coupling agent; the crystal core particle size is 150 nm;
[0043] 2) Granulation: The crystal nucleus obtained in step 1) is blended with the special polypropylene meltblown material and then melt-extrusioned to obtain intermediate particles doped with crystal nuclei; wherein the melt extrusion temperature of the intermediate particles is 250°C The weight of the crystal nucleus accounts for 0.3% of the total weig...
Example Embodiment
[0047] Example 3
[0048] The preparation of air filter material includes the following steps:
[0049] 1) Preparation of crystal nucleus: surface treatment of nano tourmaline with a coupling agent to obtain a crystal nucleus composed of a hydrophilic hemisphere and a lipophilic hemisphere. The hydrophilic hemisphere is the part of the nano tourmaline whose surface is not modified by the coupling agent. The oil hemisphere is part of the nano tourmaline whose surface is modified by a coupling agent; wherein the coupling agent is a titanate coupling agent, and the crystal core particle size is 200 nm;
[0050] 2) Granulation: the crystal nucleus obtained in step 1) is blended with the special polypropylene meltblown material and then melt-extrusioned to obtain intermediate particles doped with crystal nuclei; wherein the melt extrusion temperature of the intermediate particles is 230°C The weight of the crystal nucleus accounts for 0.3% of the total weight of the crystal nucleus and t...
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