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Preparation method of microorganism solidification gel

A technology of coagulation and microorganisms, which is applied in the field of preparation of microbial coagulation, can solve the problems of poor mechanical properties of microbial coagulation, achieve the effect of improving coagulation effect, mechanical performance, and mechanical performance

Inactive Publication Date: 2018-01-19
孙祎
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem mainly solved by the present invention is: Aiming at the problem of poor mechanical properties of traditional microbial coagulation gel, a preparation method of microbial coagulation gel is provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0023] Add cellulose and oxidizing acid solution into a three-necked flask with a mass ratio of 1:20, and move the three-necked flask into a digital speed measuring and constant temperature magnetic stirrer, at a temperature of 65°C and a speed of 400r / min, stir and react at a constant temperature for 4 hours. Filtrate to obtain a filter cake, and wash the filter cake with deionized water until the washing liquid is neutral, then transfer the washed filter cake to an oven, and dry it to a constant weight at a temperature of 110°C to obtain oxidized cellulose; In parts by weight, take 10 parts of chitosan, 6 parts of gelatin, 4 parts of casein, 3 parts of mixed strains, and 120 parts of water. First mix chitosan, gelatin and water into a beaker, and use a glass rod to After stirring and mixing for 15 minutes, let stand at room temperature to swell for 5 hours, then move the beaker into a magnetic stirrer with digital display speed measurement and constant temperature, and heat a...

example 2

[0025]In parts by weight, take 10 parts of chitosan, 6 parts of gelatin, 4 parts of casein, 3 parts of mixed strains, and 120 parts of water, first mix chitosan, gelatin and water into a beaker, and use a glass After mixing with the stick for 15 minutes, let stand at room temperature to swell for 5 hours, then move the beaker into a magnetic stirrer with digital display speed measurement and constant temperature, and heat and stir to dissolve for 60 minutes at a temperature of 90°C and a speed of 500r / min to obtain a mixed sugar solution After the mixed sugar solution is cooled to room temperature, it is transferred to a fermenter, and then casein and mixed strains are added to the fermenter, and then the fermenter is sealed, and the temperature is 32°C, and the rotation speed is 200r / min. Stir and seal at a constant temperature Ferment for 6 days, and then use 15% sodium bicarbonate solution to adjust the pH of the material in the fermenter to neutral to obtain a coagulation l...

example 3

[0027] Add cellulose and oxidizing acid solution into a three-necked flask with a mass ratio of 1:20, and move the three-necked flask into a digital speed measuring and constant temperature magnetic stirrer, at a temperature of 65°C and a speed of 400r / min, stir and react at a constant temperature for 4 hours. Filtrate to obtain a filter cake, and wash the filter cake with deionized water until the washing liquid is neutral, then transfer the washed filter cake to an oven, and dry it to a constant weight at a temperature of 110°C to obtain oxidized cellulose; In terms of parts by weight, successively take 10 parts of chitosan, 4 parts of casein, 3 parts of mixed strains, and 120 parts of water, first mix chitosan and water and pour them into a beaker, stir and mix with a glass rod for 15 minutes, and Leave to swell at room temperature for 5 hours, then move the beaker into a magnetic stirrer with digital display speed measurement and constant temperature, and heat and stir to d...

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Abstract

The invention discloses a preparation method of microorganism solidification gel and belongs to the technical field of natural high molecular materials. According to the technical scheme, the preparation method comprises the following steps: firstly, mixing cellulose and oxidized acid liquid and reacting; then filtering, washing and drying to obtain cellulose oxide; after mixing and swelling chitosan, gelatin and water, heating, stirring and dissolving; adding casein and mixed strains; after mixing and fermenting, regulating the pH (Potential of Hydrogen) to be neutral to prepare solidification liquid; then mixing the solidification liquid, the cellulose oxide and saturated lime water and continuously introducing carbon dioxide to react, so as to prepare modified solidification liquid; then stirring and mixing the modified solidification liquid, latex and a solidification auxiliary agent, and standing; pressing, granulating and drying to obtain the microorganism solidification gel. Themicroorganism solidification gel disclosed by the invention has relatively high tensile strength, tearing strength and rigidity and has good mechanical properties.

Description

technical field [0001] The invention discloses a preparation method of microbial coagulation gel, which belongs to the technical field of natural polymer materials. Background technique [0002] The biological coagulation of latex refers to the addition of carbohydrates required for microbial reproduction to enhance the activity of contaminated microorganisms after rubber tapping or artificially inoculated microorganisms, and to multiply in large quantities in a relatively short period of time, thus accelerating the process of natural latex coagulation. Research data show that the use of biological coagulation process can improve the intrinsic properties of raw rubber, which can be widely used in production. [0003] As a big producer of natural rubber, it is also a big consumer of natural rubber. At present, the output of standard natural rubber has accounted for 85% of the output of natural rubber. However, for a long time, the domestic standard rubber has disadvantages s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08C1/15C12N1/20C12R1/01
Inventor 孙祎许蘅张琳
Owner 孙祎
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