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High-molecular separation membrane with high toughness and preparation method thereof

A polymer and separation membrane technology, applied in semi-permeable membrane separation, chemical instruments and methods, membrane technology, etc., can solve problems such as easy rupture, and achieve the effect of not easy to rupture, increase toughness, and long service life

Pending Publication Date: 2022-08-05
HUANGHE S & T COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The object of the present invention is to provide a kind of polymer separation membrane with high toughness and its preparation method, to solve the problem of easy cracking in the above-mentioned background technology

Method used

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  • High-molecular separation membrane with high toughness and preparation method thereof
  • High-molecular separation membrane with high toughness and preparation method thereof
  • High-molecular separation membrane with high toughness and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1: an embodiment provided by the present invention: a high toughness polymer separation membrane and a preparation method thereof, comprising a main body 1 and an auxiliary block 2, the outer wall of the main body 1 is installed with a fixing plate 101, and the outer wall of the fixing plate 101 is installed A connecting ring 102 is installed, an auxiliary block 2 is installed at the bottom of the main body 1, a support plate 201 is installed on the inner wall of the auxiliary block 2, a support rod 202 is installed through the top of the support plate 201, and the top of the support rod 202 extends out of the auxiliary block 2 The top of the support rod 202 is installed with a bonding plate 203, the outer wall of the support rod 202 is surrounded by a spring 204, the outer wall of the support rod 202 is installed with a conductive rod 205, and the bottom of the support plate 201 is installed with a detection resistor 3. A filter layer 7 is installed on the in...

Embodiment 2

[0045] Example 2: First, prepare 15 parts of polyethersulfone, 10 parts of oleophobic group-modified nano-mesoporous silica, and 150-200 parts of N,N dimethylformamide solvent;

[0046] First, the mesoporous silica and polyethersulfone modified with oleophobic groups are placed in a mixer for stirring, and the heating temperature is controlled to be 100-150 °C. Uniform solution, and then use the coating equipment to coat the substrate (glass, non-woven fabric, etc.) into a film with uniform thickness, and then put it into the coagulation bath for 10-24 hours for curing, and then take out the cured material and use Cutting device cuts solid material into 4×4cm squares

Embodiment 3

[0047] Example 3: First prepare 20 parts of polyethersulfone, 20 parts of oleophobic group-modified nano-mesoporous silica, and 150-200 parts of N,N dimethylformamide solvent;

[0048] First, the mesoporous silica and polyethersulfone modified with oleophobic groups are placed in a mixer for stirring, and the heating temperature is controlled to be 100-150 °C. Uniform solution, and then use the coating equipment to coat the substrate (glass, non-woven fabric, etc.) into a film with uniform thickness, and then put it into the coagulation bath for 10-24 hours for curing, and then take out the cured material and use Cutting device cuts solid material into 4×4cm squares

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Abstract

The invention discloses a high-toughness polymer separation membrane and a preparation method thereof.The high-toughness polymer separation membrane comprises a main body and an auxiliary block, a fixing plate is installed on the outer wall of the main body, a connecting ring is installed on the outer wall of the fixing plate, the auxiliary block is installed at the bottom of the main body, and a protective shell is installed on the inner bottom wall of the auxiliary block; and an ammeter is mounted on the inner wall of the protective shell. The produced separation membrane is not prone to breakage, long in service life and resistant to corrosion, frequent replacement is not needed, the toughness of the separation membrane can be improved by installing an auxiliary block, the separation membrane is not prone to breakage, the bottom of the separation membrane can be bonded through a bonding plate, when the separation membrane is stressed, the bonding plate and a supporting rod can share the pressure, a spring can buffer the pressure, and the separation membrane is not prone to breakage. When the pressure borne by the separation membrane is too large, the supporting rod drives the conducting rod to make contact with the detection resistor, and when the current difference detected by the multiple ampere meters is too large, it can be judged that the separation membrane is broken, and workers are reminded to replace the separation membrane.

Description

technical field [0001] The invention relates to the technical field of polymer separation membranes, in particular to a polymer separation membrane with high toughness and a preparation method thereof. Background technique [0002] Polymer separation membrane is a membrane made of polymer or polymer composite material with the function of separating fluid mixture. Membrane separation is based on the selective permeability of the membrane. The separation membrane is used as a spacer layer. Under the driving force of the potential difference, each component in the fluid mixture has different rates of permeating through the membrane, so that it can be enriched on both sides of the membrane, so as to achieve the purpose of separation, purification, concentration and recycling. The amount of fluid passing through the membrane per unit time (permeation rate), the ratio of the permeation coefficients of different substances (separation coefficient) or the retention rate of a certai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D69/02B01D65/02B01D65/10B01D67/00
CPCB01D69/02B01D65/02B01D65/102B01D67/0002Y02A20/131Y02W30/62
Inventor 蒋爱云舒秀韩谭张葳蕤张星星马晓星
Owner HUANGHE S & T COLLEGE
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