PVDF/PS hollow fiber electropositive membrane for life straw
A fiber and hollow technology, which is applied in the field of PVDF/PS hollow fiber positive membrane, can solve the problem of low interception rate of hollow fiber positive membrane, and achieve the effects of strong anti-pollution performance, improved utilization rate and high heat resistance
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Embodiment 1
[0033] Please refer to Table 1, a PVDF / PS hollow fiber positive charge membrane for life straw, including a very thin skin layer and a microporous layer located on the outer wall of the very thin skin layer, and the wall thickness of the very thin skin layer is 200-600 μm , the wall thickness of the microporous layer is 52-80 μm, the ultra-thin skin layer is a polyvinylidene fluoride hollow fiber ultrafiltration membrane, the microporous layer is a selective permeable membrane, and the pores of the selective permeable membrane are 0.001-0.1 μm, The composition of the extremely thin skin layer is: polyvinylidene fluoride (PVDF) with a weight percentage of 5%-9%, polyethersulfone (PES) with a weight percentage of 8%-16%, and a weight percentage of 15%-20%. Polysulfone (PS), 9%-13% by weight polyacrylonitrile (PAN), 16%-20% by weight polyvinyl chloride (PVC), 13%-19% by weight polypropylene (PP), 11%-30% by weight polyethylene (PE), the composition of the microporous layer is: 82...
Embodiment 2
[0041] Please refer to Table 1, a PVDF / PS hollow fiber positive charge membrane for life straw, including a very thin skin layer and a microporous layer located on the outer wall of the very thin skin layer, and the wall thickness of the very thin skin layer is 200-600 μm , the wall thickness of the microporous layer is 52-80 μm, the ultra-thin skin layer is a polyvinylidene fluoride hollow fiber ultrafiltration membrane, the microporous layer is a selective permeable membrane, and the pores of the selective permeable membrane are 0.001-0.1 μm, The composition of the extremely thin skin layer is: polyvinylidene fluoride (PVDF) with a weight percentage of 5%-9%, polyethersulfone (PES) with a weight percentage of 8%-16%, and a weight percentage of 15%-20%. Polysulfone (PS), 9%-13% by weight polyacrylonitrile (PAN), 16%-20% by weight polyvinyl chloride (PVC), 13%-19% by weight polypropylene (PP), 11%-30% by weight polyethylene (PE), the composition of the microporous layer is: 82...
Embodiment 3
[0049] Please refer to Table 1, a PVDF / PS hollow fiber positive charge membrane for life straw, including a very thin skin layer and a microporous layer located on the outer wall of the very thin skin layer, and the wall thickness of the very thin skin layer is 200-600 μm , the wall thickness of the microporous layer is 52-80 μm, the ultra-thin skin layer is a polyvinylidene fluoride hollow fiber ultrafiltration membrane, the microporous layer is a selective permeable membrane, and the pores of the selective permeable membrane are 0.001-0.1 μm, The composition of the extremely thin skin layer is: polyvinylidene fluoride (PVDF) with a weight percentage of 5%-9%, polyethersulfone (PES) with a weight percentage of 8%-16%, and a weight percentage of 15%-20%. Polysulfone (PS), 9%-13% by weight polyacrylonitrile (PAN), 16%-20% by weight polyvinyl chloride (PVC), 13%-19% by weight polypropylene (PP), 11%-30% by weight polyethylene (PE), the composition of the microporous layer is: 82...
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