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Composite support material for semi-permeable membrane and manufacturing method thereof

A technology of composite support and semi-permeable membrane, which is applied in the direction of semi-permeable membrane separation, chemical instruments and methods, membrane technology, etc. Effects of foam collapse, penetration suppression, and uniformity assurance

Active Publication Date: 2016-08-10
安徽清澜新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to overcome a series of problems such as the uneven coating thickness of the semi-permeable membrane and the reduction of the adhesiveness of the non-coated surface, and provide a semi-permeable membrane that inhibits the penetration of the semi-permeable membrane solution, has good longitudinal / transverse tensile strength and air permeability Composite support material and preparation method thereof

Method used

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  • Composite support material for semi-permeable membrane and manufacturing method thereof
  • Composite support material for semi-permeable membrane and manufacturing method thereof

Examples

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Effect test

Embodiment 1

[0030]A composite support material for a semipermeable membrane, consisting of one layer of semipermeable membrane coating layer, one layer of foam adhesive coating layer and one layer of semipermeable membrane non-coating layer, the foam adhesive coating layer is set Between the coated layer of the semipermeable membrane and the uncoated layer of the semipermeable membrane. Such as figure 2 As shown, the thickness ratio of the foam adhesive coating layer 1, the semipermeable membrane coating layer 2 and the semipermeable membrane non-coating layer 3 is 1:6:12. Its manufacturing method is:

[0031] As the X surface layer, the main synthetic fiber (polyester fiber, fiber diameter 8.5 μm, fiber length 5 mm) and binder synthetic fiber (polyester fiber, fiber diameter 11 μm, fiber length 3 mm) are mixed in a ratio of 70:30 Mix and disperse in water, and use a cylinder paper machine to wet paper to form wet paper, then use a drying cylinder with a surface temperature of 130°C to...

Embodiment 2

[0038] A composite support material for a semipermeable membrane, consisting of one layer of semipermeable membrane coating layer, one layer of foam adhesive coating layer and one layer of semipermeable membrane non-coating layer, the foam adhesive coating layer is set Between the coated layer of the semipermeable membrane and the uncoated layer of the semipermeable membrane. Such as figure 2 As shown, the thickness ratio of the foam adhesive coating layer 1, the semipermeable membrane coating layer 2 and the semipermeable membrane non-coating layer 3 is 1:11:11. Its manufacturing method is:

[0039] As the X surface layer, the main synthetic fiber (polyester fiber, fiber diameter 8.5 μm, fiber length 5 mm) and binder synthetic fiber (polyester fiber, fiber diameter 11 μm, fiber length 3 mm) are mixed in a ratio of 70:30 Mix and disperse in water, use inclined wire paper machine to wet paper to form wet paper, and use a drying cylinder with a surface temperature of 130°C to...

Embodiment 3

[0046] A composite support material for a semipermeable membrane, consisting of one layer of semipermeable membrane coating layer, one layer of foam adhesive coating layer and one layer of semipermeable membrane non-coating layer, the foam adhesive coating layer is set Between the coated layer of the semipermeable membrane and the uncoated layer of the semipermeable membrane. Such as figure 2 As shown, the thickness ratio of the foam adhesive coating layer 1, the semipermeable membrane coating layer 2 and the semipermeable membrane non-coating layer 3 is 1:12:6. Its manufacturing method is:

[0047] As the X surface layer, the main synthetic fiber (polyester fiber, fiber diameter 8.5 μm, fiber length 5 mm) and binder synthetic fiber (polyester fiber, fiber diameter 11 μm, fiber length 3 mm) are mixed in a ratio of 70:30 Mix and disperse in water, use inclined wire paper machine to wet paper to form wet paper, and use a drying cylinder with a surface temperature of 130°C to ...

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Abstract

The invention provides a composite fid of a semipermeable membrane, and a manufacturing method of the composite fid. The composite fid of the semipermeable membrane is characterized by comprising a semipermeable membrane coating layer, a foam bonding and coating layer and a semipermeable membrane non-coating layer, wherein the foam bonding and coating layer is arranged between the semipermeable membrane coating layer and the semipermeable membrane non-coating layer. According to the composite fid and the manufacturing method, the gas permeability of the composite fid of the semipermeable membrane is not influenced, and the permeation of a semipermeable membrane solution to a non-coating surface of the composite fid of the semipermeable membrane is inhibited, so that the penetration degree of the semipermeable membrane solution is controlled, and the uniformity of the thickness of the semipermeable membrane is ensured.

Description

technical field [0001] The invention relates to a semipermeable membrane support material and a manufacturing method thereof. Background technique [0002] Semipermeable membrane is a membrane material with a porous surface, which is widely used in seawater desalination, wastewater treatment, food concentration, microbial separation, blood filtration, semiconductor manufacturing process or ultrapure water production and other fields. Generally speaking, the coating layer of the semi-permeable membrane is a synthetic polymer film, which itself has low mechanical strength. Therefore, non-woven fabrics, fabrics and similar products are often used as its skeleton support material, and polymer polymers are coated on the support material to form a semipermeable membrane. [0003] In order to improve the filtration flow rate and filtration performance, the surface of the semipermeable membrane coating layer should have less unevenness, no transverse bending or wrinkles during coat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D69/10
Inventor 刘攀周原吴立群
Owner 安徽清澜新材料科技有限公司
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