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Non-salt or less-salt PEG/quaternary ammonium salt compound fungicidal preservative and preparation method thereof

A technology of bactericidal preservatives and quaternary ammonium salts, applied in the directions of fungicides, botanical equipment and methods, biocides, etc., can solve problems such as difficult to effectively remove, affecting the growth of plants and aquatic organisms, environmental health and safety risks, etc. Low cost, reduction of total solid insolubles and chloride pollution, convenient use and operation

Active Publication Date: 2015-09-09
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unlike most other pollutants, sodium chloride is highly soluble, chemically stable, and difficult to remove effectively
High salinity wastewater can seriously affect the growth of plants and aquatic organisms
In addition, fungicides used in the leather industry for anticorrosion also have environmental health and safety risks

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Weigh 10kg of polyethylene glycol-200, 2kg of sodium chloride, and 0.5kg of quaternary ammonium salt mixture, add water and stir to dissolve to make a 15kg solution to obtain a salt-free or low-salt-PEG / quaternary ammonium salt compound bactericidal preservative. The preservative is made into a solution according to the liquid ratio of 1:1. After soaking 15kg of fresh sheepskin for 8 hours, it can be effectively preserved by draining and storing.

Embodiment 2

[0024] Weigh 10kg of polyethylene glycol-600, 3kg of sodium chloride, and 0.8kg of quaternary ammonium salt mixture, add water and stir to dissolve to make a 15kg solution to obtain a salt-free or low-salt-PPEG / quaternary ammonium salt composite bactericidal preservative. Dilute the preservative according to a liquid ratio of 1:20 to make a solution, soak 200kg of fresh sheepskin for 10 hours, drain and store, and spray the diluted preservative solution regularly to effectively preserve it.

Embodiment 3

[0026] Weigh 10kg of polyethylene glycol-6000, 3kg of sodium chloride, and 1kg of quaternary ammonium salt mixture, add water and stir to dissolve to make a 20kg solution to obtain a salt-free or low-salt-PEG / quaternary ammonium salt compound bactericidal preservative. Dilute the preservative at a liquid ratio of 1:20 to make a solution, soak 300kg of fresh sheepskin for 8 hours, drain and store, and spray the diluted preservative solution regularly to effectively preserve it.

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PUM

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Abstract

The invention discloses a non-salt or less-salt PEG / quaternary ammonium salt compound fungicidal preservative and a preparation method thereof. According to the technical scheme, the fungicidal preservative is characterized by being prepared from 20-80wt% of polyethylene glycol, 0-15wt% of sodium chloride, 0.02-5wt% of a mixture of alkyl dimethyl benzyl ammonium chloride and dialkyl dimethyl ammonium chloride, and water, wherein the molecular weight of polyethylene glycol is 200-10000, alkyl dimethyl benzyl ammonium chloride contains dimethyl benzyl ammonium chloride with carbon chain length being 8-18, and dialkyl dimethyl ammonium chloride comprises dioctyldimethyl ammonium chloride, didecyldimethyl ammonium chloride, didodecyldimethyl ammonium chlorideand decyl dimethyl octyl ammonium chloride. The fungicidal preservative can be applied to antiseptic preservation of raw hide and fungicidal and antiseptic treatment during a wet operation process, is capable of killing microorganisms effectively and achieving sustainable fungistasis, is high in efficiency and low in toxicity, is safe and reliable, is simple and convenient in production and application, can be used for effectively lowering the amount of total dissolved solids in tannery wastewater and chloride pollution, has the effects of accelerating immersion, decontaminating, degreasing, washing and the like, and has no negative effect on later tannery process.

Description

technical field [0001] The invention belongs to the technical field of tanning, sterilization and anticorrosion, and in particular relates to a composite antiseptic for raw hides which is safe, environmentally friendly, biodegradable and has good antiseptic and antiseptic effects. Background technique [0002] The raw materials of the tanning industry come from natural animal hides, which are rich in 30% to 35% protein and 60% to 75% moisture. During storage and transportation, they are easily corroded by microorganisms and hydrolyzed by their own enzymes to rot. The leather industry earns more than US$10 billion in foreign exchange for my country's exports every year. The anti-corrosion preservation of leather raw materials and the soaking operation in the preparation section as the source process largely determine the sensory quality and physical properties of finished leather. Therefore, sterilization and anticorrosion are very important. Commonly used anti-corrosion met...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N59/08A01P3/00C14C11/00A01N31/02A01N33/12
Inventor 林炜彭慧娟王春华穆畅道
Owner SICHUAN UNIV
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