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Macromolecular separating membrane

A polymer and separation membrane technology, applied in semi-permeable membrane separation, membrane, membrane technology and other directions, can solve the problems of complex preparation process, small selectivity, low separation efficiency, etc., and achieve low cost of raw materials and processes, and uniform pore distribution. The effect of chemistry and simple production process

Active Publication Date: 2016-07-20
NANJING BO FILM NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Inorganic membranes are mainly ceramic membranes and metal membranes. Inorganic ceramic membranes are the most widely used inorganic membranes. Ceramic membranes have many advantages, such as high temperature resistance, high pressure, strong chemical resistance, high strength, and are affected by pH. Small, anti-pollution, long life, etc., but the preparation cost of ceramic membrane is high, the filtration accuracy is low, the selectivity is small, and compared with organic membrane, the material selection space is very small; organic membrane is made of polymer materials , such as cellulose acetate, aromatic polyamide, polyethersulfone, polyfluoropolymer, etc., have a wide range of sources and high selectivity, and have shown their potential in new energy, bioengineering, and new chemical technologies. However, the existing polymer membranes are generally surface-modified polymer materials to obtain polymer membranes that can be selectively separated. The preparation process is complicated, the surface modification effect is difficult to control, and the separation efficiency is low. In addition, The prepared oil-water separation membrane has low strength and poor impact resistance. In order to improve its strength, metal mesh (such as copper mesh) is usually used as the base, and the production cost is high.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] (1) Preparation of polymer meson materials: 5 parts of hydrophilic epoxy resin, 30 parts of silicon oxide powder, 30 parts of shell particles, 20 parts of iron oxide powder, 60 parts of coconut shell particles, 0.1 part of urotropine and 0.2 parts Calcium stearate was mixed at 100°C, cooled, and sieved to obtain a 20-mesh polymer meson material;

[0018] (2) Preparation of a polymer separation membrane: the polymer meson material obtained in step (1) was pressurized and heated for 30 min under the conditions of a pressure of 0.5 MPa and a temperature of 100° C., and molded to obtain a polymer separation membrane.

[0019] The obtained polymer separation membrane had a pore diameter of 5 μm.

Embodiment 2

[0021] (1) Preparation of polymer meson materials: 20 parts of phenolic resin, 60 parts of silicon oxide powder, 50 parts of shell particles, 50 parts of iron oxide powder, 80 parts of chestnut shell particles, 1 part of urotropine, 2 parts of tung oil and 2 parts 1 part of stearic acid amide was mixed at 200°C, cooled and sieved to obtain 30 mesh polymer meson materials;

[0022] (2) Preparation of a polymer separation membrane: The polymer meson material obtained in step (1) was pressurized and heated for 10 min under the conditions of a pressure of 2 MPa and a temperature of 200° C., and molded to obtain a polymer separation membrane.

[0023] The obtained polymer separation membrane had a pore diameter of 40 μm.

Embodiment 3

[0025] (1) Preparation of polymer meson materials: 10 parts of polyamide resin, 50 parts of silicon oxide powder, 40 parts of shell particles, 30 parts of iron oxide powder, 35 parts of chestnut shell particles, 35 parts of coconut shell particles and 3.5 parts of stearic acid Calcium is mixed at 150°C, cooled, and sieved to obtain a 40-mesh polymer meson material;

[0026] (2) Preparation of polymer separation membrane: heat the polymer meson material obtained in step (1) at a temperature of 100°C and a pressure of -0.5MPa for 10min, pressurize to 1Mpa, and heat up to 150°C for 15min , molded with a mold to obtain a polymer separation membrane.

[0027] The obtained polymer separation membrane had a pore diameter of 70 μm.

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Abstract

The invention discloses a macromolecular separating membrane. The macromolecular separating membrane is formed by pressing and heating macromolecular meson materials. The macromolecular meson materials is made of hydrophilic resin or oleophilic resin, silicon oxide, seashell particles, ferric oxide, plant particles, and curing agent through mixing. Hydrophilic resin or oleophilic resin, silicon oxide, seashell particles, ferric oxide, plant particles, and curing agent are mixed to obtain macromolecular meson materials that are pressed and heated to obtain the macromolecular separating membrane. According to performance of the resin, the hydrophilic or oleophilic macromolecular separating membrane can be obtained to filter liquid-phase molecules. By controlling grain diameter of the macromolecular meson materials and the pressing condition, the pore diameter of the macromolecule separating film is 5-100 micrometers, and all molecules in this range can be filtered and separated. In addition, the production process of the macromolecular separating membrane is simple and low in material and process cost.

Description

technical field [0001] The invention relates to a polymer membrane, in particular to a polymer separation membrane capable of realizing selective separation. Background technique [0002] Membrane separation is a new separation technology that appeared in the early 20th century and rose rapidly after the 1960s. Membrane separation technology has been widely used in food, medicine, biology, environmental protection, etc. , chemical industry, metallurgy, energy, petroleum, water treatment, electronics, bionics and other fields have produced huge economic and social benefits, and have become one of the most important means in today's separation science. [0003] Membrane is a material with selective separation function. The process of using the selective separation of membrane to realize the separation, purification and concentration of different components of feed liquid is called membrane separation. It differs from traditional filtration in that membranes can separate on a...

Claims

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Application Information

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IPC IPC(8): B01D69/02B01D69/14B01D67/00B01D71/74B01D71/46B01D71/72B01D71/56B01D71/48
CPCB01D67/0079B01D69/02B01D69/148B01D71/024B01D71/027B01D71/46B01D71/48B01D71/56B01D71/72B01D71/74B01D2325/24B01D2325/36B01D2325/38
Inventor 石荣珍赵文赵本宏
Owner NANJING BO FILM NEW MATERIAL TECH CO LTD
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