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Method for solidifying natural rubber latex by using microbe culture solution

A technology of natural rubber latex and microbial cultivation, applied in the direction of microorganism-based methods, biochemical equipment and methods, microorganisms, etc., can solve the problem that it is difficult to prevent other bacteria pollution, difficult to promote and apply on a large scale, and difficult to achieve uniform addition and other issues, to achieve the effects of reducing total solid content, improving biodegradability, and low cost

Inactive Publication Date: 2011-06-15
蒋盛军 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In these patents, starch is added as a coagulation component, and it is difficult to add evenly; it is difficult to prevent the contamination of other bacteria by using a single strain of bacteria, so there are still cases of odor and low coagulation efficiency when coagulating with the above method; at the same time , the addition of calcium chloride will have a great impact on the properties of rubber, and it is difficult to promote and apply it on a large scale in production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Take the mixed flora bacterial solution containing microorganisms such as acetic acid bacteria, yeast and lactic acid bacteria, add it to the above-mentioned medium 1 and cultivate it for 3-10 days, until the pH value of the medium drops below 3-4, the acetic acid content in the culture solution is relatively large and Stable, according to the volume of the latex, at this time, add the microbial bacterial liquid into the rubber latex according to the amount of 5% added, and add 0.1% volume of ethanol or acetic acid, 0.5% sugar source, after stirring evenly, place it for 12-24 hours, The gel pieces were taken out, and the remaining whey was used as medium 2 or as a microbial state preparation.

Embodiment 2

[0035] Take the mixed flora bacterial solution containing microorganisms such as acetic acid bacteria, yeast and lactic acid bacteria, and add it to the above-mentioned medium 2 to cultivate for 3-10 days, until the pH value of the medium drops below 3-4, and the acetic acid content in the culture solution is relatively large and Stable, at this time, add 5% to the rubber latex, add 0.1% volume of ethanol or acetic acid, and 0.3% sugar source at the same time, after stirring evenly, let it stand for 12-24 hours, take out the rubber block, and use the remaining whey As medium 2 or as probiotics.

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Abstract

Microbe culture solution which contains a large number of viable bacteria is formed by fermenting microorganisms of which the main floras are acetic bacteria and yeasts; the microbe culture solution is mixed with a small amount of ethanol, acetic acid, sugar source, inorganic salt and the like; the mixture is added into a rubber latex; and latex particles are further solidified through the acetic acid and bacterial cellulose which are generated from nutrient substances in the rubber latex by the microorganisms, such as the acetic bacteria, yeasts and the like in the microbe culture solution. At the same time, the microorganisms decompose a large number of nutrient substances, such as a nitrogen source and the like, in the latex in a growing process, then the total solid content in solidified waste liquid is further reduced and pollution emission is reduced; and serum left in the solidified latex can serve as a culture medium of microorganism solidification liquid or a beneficial microbial ecological agent, and then the rubber latex is comprehensively used. The method has simple operation; by the method, the cost and the pollution are reduced and the rubber yield is improved; and the product produced by the method has better physical and chemical property than the product produced by acidic solidification.

Description

1. Technical field [0001] The invention relates to a biological coagulation process of natural rubber latex. 2. Background technology [0002] The coagulation methods of natural rubber latex can be divided into three categories: [0003] Chemical method - adding coagulant such as acid, salt, dehydrating agent, the patent report in this respect has: a kind of method (CN100536336C) that improves the aging performance of calcium ion coagulated natural rubber, utilizes cheap calcium ion solution to coagulate natural rubber latex; A kind of novel natural latex coagulant (CN87104720A), utilizes sulfuric acid ethanol, 2,3-dihydroxybutanediol to coagulate latex, similar patent has a kind of improved natural fresh latex coagulant (CN 1111172C), utilizes sulfuric acid, water , ethanol and other raw materials to produce new latex coagulants; there are also reports on the use of surfactants, calcium chloride, and starch as coagulants to solidify natural latex (He Zhongjian et al. show ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08C1/15C12R1/645C12N1/20C12R1/02C12N1/16
Inventor 蒋盛军符乃方雷博林罗长辉
Owner 蒋盛军
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