Hybric organic resin film and its preparation process

An organic membrane and resin technology, applied in the field of functional separation membranes and their preparation, can solve the problems of complex polymerization methods, easy inactivation of functional groups, and inaccessibility, and achieve the effects of wide source of raw materials, fast process speed, and good adsorption performance.

Inactive Publication Date: 2008-07-16
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, since these monomers with active functional groups are difficult to synthesize and the polymerization methods are relatively complicated, and the functional groups are easy to deactivate or fall off during the molding process, the expected effect is often not achieved [Yu Yihua, Bai Shu, Sun Yan, Ion Exchange and Adsorption, 1998, 14(5), 466~473]

Method used

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  • Hybric organic resin film and its preparation process
  • Hybric organic resin film and its preparation process
  • Hybric organic resin film and its preparation process

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[0029] The present invention simultaneously designs the preparation method of described hybrid film, and it comprises the following steps:

[0030] 1. Preparation of casting solution: According to the mass percentage requirements of the hybrid film casting solution formula of the present invention, fully mix the various components described, stir at 70-80°C for 4-12 hours, and statically After defoaming for 24 to 48 hours, a uniformly mixed casting solution is obtained;

[0031] 2. Membrane making: at 20-90°C, scrape and coat the prepared casting solution on a flat plate or non-woven fabric to form a flat film, and then soak it in a coagulation bath with a temperature of 20-90°C for 48-48°C. 72 hours, so that the film is solidified and formed completely, and the residual solvent and additives are removed, and the resin hybrid organic film with adsorption function can be prepared. The flat plate includes a flat glass plate and a stainless steel plate; the scraping method can b...

Embodiment 1

[0041] The mass percentage formula design of the hybrid membrane casting solution is: 14wt% polyethersulfone [BASF production]; 6wt% cation exchange resin powder [Nankai University chemical plant, model D061] (PES / resin=70 / 30), average particle size Diameter 10 μm; 20 wt% polyethylene glycol 400 (PEG-400); 2 wt% polyvinylpyrrolidone and 58 wt% N-methylpyrrolidone.

[0042] The process of manufacturing the hybrid film is as follows: first add 6g resin to 58g NMP and stir, after the dispersion is complete, add 20g PEG-400 and 4gPVP, after the solid is completely dissolved, add 14g PES in three times to ensure that the resin is dispersed in the polymer Completely, add PES and stir the solution at 70°C for 8 hours; after the dissolution and dispersion are complete, let it stand for defoaming for 24 hours to prepare a casting solution; manually scrape the casting solution at a temperature of 60°C on a glass plate After forming a flat film with a thickness of 0.25mm, solidify and fo...

Embodiment 2

[0044] The formula design of all mass percentages of the hybrid film casting solution is: 14wt% polyethersulfone [BASF production]; 20wt% cation exchange resin powder [Nankai University chemical plant, model D061] (PES / resin=41 / 59), average Particle size 10 μm; 20 wt% polyethylene glycol 400; 2 wt% polyvinylpyrrolidone and 44 wt% N-methylpyrrolidone.

[0045] The process of manufacturing the hybrid film is as follows: first add 20g of resin to 44g of NMP and stir, after the dispersion is complete, add 20g of PEG-400 and 2g of PVP, and after the solid is completely dissolved, add 14g of PES in three times to ensure that the resin is completely dispersed in the polymer. After adding PES, stir the solution at 80°C for 4 hours; after the dissolution and dispersion are complete, let it stand for defoaming for 24 hours to prepare a casting solution; manually scrape the casting solution at a temperature of 60°C on a glass plate to make a thickness After forming a flat film of 0.25 mm...

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Abstract

The present invention relates to one kind of hybridized organic resin film and its preparation process. The hybridized organic resin film consists of polymer 10-25 wt%, ion exchange resin 5-40 wt%, solvent 30-80 wt%, and additive 5-30 wt%. Its preparation process includes the following steps: preparing film casting liquid according to the said recipe, filming and post-treatment. The hybridized organic resin film of the present invention has surface opening hole structure and excellent adsorbing performance, may be used as chromatographic medium and filtering medium and is especially suitable for use in separating and purifying protein.

Description

technical field [0001] The present invention relates to a functional separation membrane and its preparation method, in particular to a resin hybrid organic membrane with adsorption function which can be directly prepared by phase inversion method and its preparation method. The international patent classification number is proposed to be Int.Cl C08F 20 / 00(2006.01). Background technique [0002] With the development of bioengineering and life sciences, higher and higher requirements are put forward for the purification of proteins, that is, to obtain high-activity and high-purity proteins, while the previous means of separation based on the physical and chemical properties of biological macromolecules such as salting out method, organic solvent fractional precipitation method, liquid-liquid two-phase extraction method, ion exchange chromatography, gel filtration method, etc., all have the problems of cumbersome process, low activity recovery rate, and unsatisfactory purific...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D71/00B01D67/00
Inventor 张玉忠贾茹李泓
Owner TIANJIN POLYTECHNIC UNIV
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