Forming process of high polymer material separation membrane

Abstract

The invention discloses a forming process of a high polymer material separation membrane. The high polymer separation membrane is formed by carrying out vacuum heating processing a high polymer meson material for 10 to 30min under a pressure of minus 0.4 to minus 3Mpa, wherein the high polymer meson material is formed by carrying out pressurization and heating for 20 to 30min at a temperature of 150 to 200 DEG C and under a pressure of 0.5 to 1.5Mpa; the high polymer meson material is obtained by blending 8 to 20 weight parts of hydrophilic resin or oleophilic resin, 40 to 60 weight parts of silicon oxide, 35 to 45 weight parts of seashell particles, 30 to 40 weight parts of ferric oxide, 70 to 80 weight parts of plant particles and 0.4 to 4 weight parts of curing agent. Therefore, according to the forming process disclosed by the invention, by controlling a particle size and a pressurization condition of the high polymer meson material, a pore diameter of the prepared high polymer separation membrane can be 4 to 90mum, and all molecules in the range of the particle size can be separated and filtered; moreover, the production process of the high polymer separation membrane is simple, and raw material and process cost is low.

Description

technical field [0001] The invention relates to the field of polymer material molding, in particular to a molding process of a polymer material separation membrane. 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 separa...

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.