Reverse osmosis flame-retardant waterproof layer and preparing method thereof
A waterproof layer and reverse osmosis technology, applied in the field of reverse osmosis, can solve the problems of low operating pressure and high desalination rate, and achieve the effects of less pollution, increased desalination rate and low cost
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Embodiment 1
[0028] This embodiment provides a reverse osmosis flame-retardant waterproof layer, which includes a polysulfone-based membrane layer, a polyamide desalination layer, a flame-retardant layer, a waterproof layer, and a filter layer. The surface of the polysulfone-based membrane layer is coated with a polysulfone coating. The polysulfone coating includes the following components: tetrahydrofuran: 2 parts, diiodomethane: 11 parts, PVC resin: 20 parts, stabilizer: 10 parts, propylene carbonate: 9 parts, benzyl alcohol: 3 parts, o-benzene Dibutyl dicarboxylate: 9 parts, dimethylethanolamine: 5 parts, defoamer: 3 parts;
[0029] The surface of the polyamide desalination layer is coated with a layer of polyamide desalination coating. The polyamide desalination coating includes the following components: tetrahydrofuran: 2 parts, allyl alcohol: 8 parts, nitroethane: 13 parts, ethylene glycol: 9 parts , Crosslinking agent: 15 parts, sodium tetraborate: 3 parts, mixed phosphate: 4 parts, pl...
Embodiment 2
[0041] This embodiment provides a reverse osmosis flame-retardant waterproof layer, which includes a polysulfone-based membrane layer, a polyamide desalination layer, a flame-retardant layer, a waterproof layer, and a filter layer. The surface of the polysulfone-based membrane layer is coated with a polysulfone coating. The polysulfone coating includes the following ingredients: Tetrahydrofuran: 5 parts, Diiodomethane: 16 parts, PVC resin: 30 parts, stabilizer: 13 parts, propylene carbonate: 13 parts, benzyl alcohol: 9 parts, o-benzene Dibutyl dicarboxylate: 12 parts, dimethylethanolamine: 7 parts, defoamer: 5 parts;
[0042] The surface of the polyamide desalination layer is coated with a layer of polyamide desalination coating. The polyamide desalination coating includes the following components: tetrahydrofuran: 7 parts, allyl alcohol: 12 parts, nitroethane: 18 parts, ethylene glycol: 13 parts , Crosslinking agent: 18 parts, sodium tetraborate: 7 parts, mixed phosphate: 9 part...
Embodiment 3
[0054] This embodiment provides a reverse osmosis flame-retardant waterproof layer, which includes a polysulfone-based membrane layer, a polyamide desalination layer, a flame-retardant layer, a waterproof layer, and a filter layer. The surface of the polysulfone-based membrane layer is coated with a polysulfone coating. The polysulfone coating includes the following ingredients: Tetrahydrofuran: 3 parts, Diiodomethane: 15 parts, PVC resin: 25 parts, stabilizer: 12 parts, propylene carbonate: 11 parts, benzyl alcohol: 5 parts, o-benzene Dibutyl dicarboxylate: 11 parts, dimethylethanolamine: 6 parts, defoamer: 4 parts;
[0055] The surface of the polyamide desalination layer is coated with a layer of polyamide desalination coating. The polyamide desalination coating includes the following components: tetrahydrofuran: 5 parts, allyl alcohol: 10 parts, nitroethane: 15 parts, ethylene glycol: 11 parts , Crosslinking agent: 16 parts, sodium tetraborate: 4 parts, mixed phosphate: 7 part...
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