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Composite synergistic bactericidal and preservative agent for organic foaming agents

A technology of bactericidal preservatives and organic foaming agents, applied in the directions of fungicides, applications, biocides, etc., can solve the problems of inability to achieve anti-corrosion effect, limited anti-corrosion and bactericidal ability, single preservative, etc. Anti-corrosion and anti-mildew performance, the effect of reducing production cost

Active Publication Date: 2014-07-23
SHAANXI RES DESIGN INST OF PETROLEUM CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The commonly used single type of bactericidal preservative has very limited antiseptic and bactericidal ability and low efficiency for foaming agents containing a large amount of protein and sugar, which can be judged from its minimum bactericidal concentration (MIC) value, and the summer storage period is only ten It will deteriorate and stink in a few days, and there are a large number of cases of corruption and deterioration
Obviously, for organic foaming agents with high concentrations of protein and sugar, a single preservative cannot achieve the desired antiseptic effect at all.

Method used

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  • Composite synergistic bactericidal and preservative agent for organic foaming agents
  • Composite synergistic bactericidal and preservative agent for organic foaming agents
  • Composite synergistic bactericidal and preservative agent for organic foaming agents

Examples

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Effect test

Embodiment 1

[0026] The preparation method of an embodiment of the compound synergistic bactericidal preservative for organic foaming agent of the present invention comprises the following processing steps:

[0027] 1. Weigh 10.2 kg of BIT (12 kg of 85% BIT), disperse it in 35 kg of polyethylene glycol 400, stir and heat to 30°C, add 4.5 kg of 45% sodium hydroxide to dissolve the BIT, the pH is 9~ 10;

[0028] 2. Add 4 kg of o-phenylphenol and 16 kg of 50% sodium hydroxymethylglycinate to 10 kg of deionized water under stirring, and gradually add 1.6 kg of 45% aqueous sodium hydroxide solution to completely dissolve it;

[0029] 3. Stir and mix the solution of step 2 and step 1, add 7 kg of benzyl alcohol, add deionized water to a total of 100 kg and stir evenly (adjust the pH value with very little sodium hydroxide or hydrochloric acid if necessary), to obtain the present invention A compound synergistic bactericidal preservative for an organic foaming agent, the pH value of the compound...

Embodiment 2

[0040] The preparation method of another embodiment of the composite synergistic bactericidal preservative for the organic foaming agent of the present invention comprises the following process steps:

[0041] 1. Weigh 12 kg of BIT (14.1 kg of 85% BIT), disperse it in 40 kg of 1,2-propylene glycol, stir and heat to 30°C, add 5.5 kg of 45% sodium hydroxide to dissolve BIT, and the pH is 9 ~10;

[0042] 2. Add 5 kg of o-phenylphenol and 14 kg of 50% sodium hydroxymethylglycinate to 10 kg of deionized water under stirring, and gradually add 1.9 kg of 45% sodium hydroxide aqueous solution to completely dissolve it;

[0043] 3. Stir and mix the solution of step 2 and step 1, add 8 kg of benzyl alcohol, add deionized water to a total of 100 kg and stir evenly (adjust the pH value with very little sodium hydroxide or hydrochloric acid if necessary), to obtain the present invention Another compound synergistic bactericidal preservative for organic foaming agents, the pH value of the ...

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Abstract

The invention relates to a composite synergistic bactericidal and preservative agent for organic foaming agents, which is prepared from 2-methylisothiazolinone and / or 1,2 benzisothiazolinone (BIT) and / or dichloroethylene based salicylamide, sodium pyrithione and / or sodium hydroxymethylglycinate, sodium dimethyldithiocarbamate and / or o-phenylphenol, phenethyl alcohol and / or phenylcarbinol, a regulator, a solvent and water. According to the invention, different bactericidal and preservative agents with various complementary bactericidal spectrums are composited, so that the products have the advantages of reasonable formula, comprehensive protection, strong synergism, good bactericidal and preservative effects and the like, and have a good application effect when being used in aqueous organic foaming agents containing large amounts of proteins and organic polysaccharides.

Description

technical field [0001] The invention belongs to the technical field of preparation of chemical antiseptic and antifungal agents, and relates to a compound synergistic bactericidal antiseptic for organic foaming agents and a preparation method thereof. Background technique [0002] In the process of producing high-performance foam concrete, foaming agent is an essential substance. High-quality foaming agents are required to have the advantages of low cost, easy availability of raw materials, high foaming power and long foam stabilization time, especially the foam stabilization time must meet the actual use requirements. [0003] Animal protein and vegetable protein foaming agents have entered the field of building foam in large quantities so far. The outstanding advantage they have in common is that the foam is particularly stable and can not be defoamed for a long time (the time for complete defoaming is mostly longer than 24 hours), which is unmatched by other types of foa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/80A01P1/00A01P3/00A01N37/40A01N31/08
Inventor 李程碑张剑平杨杰杨俊伟
Owner SHAANXI RES DESIGN INST OF PETROLEUM CHEM IND
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