Poly-hexamethylene biguanide hydrochloride sterilizing and disinfecting agent

Abstract

The invention provides a sterilizing and disinfecting agent being composed of: bicyanamide, ammonium chloride, 1,6-diamidohexane, a catalyst and water. The sterilizing and disinfecting agent is prepared through following processes: (1) performing a melt reaction to the bicyanamide and the ammonium chloride at 170-230 DEG C to obtain guanidine hydrochloride; (2) feeding the guanidine hydrochloride and the 1,6-diamidohexane into a reaction kettle according to the ratio of 1:1 and heating the guanidine hydrochloride and the 1,6-diamidohexane until the reactants are completely dissolved and fully mixed; (3) increasing the temperature to 120-200 DEG C with addition of the catalyst and performing a reaction for 2-3 h until no ammonia gas is discharged from the reaction kettle; (4) when the temperature of the reactants is decreased to 80 DEG C, adding a proper amount of water to finish the reaction for obtain an aqueous solution of poly-hexamethylene biguanide hydrochloride. The sterilizing and disinfecting agent can be used in water treatment in the fields of agriculture, leather industry, breeding industry of poultry and livestock, oil extraction and the like.

Description

technical field [0001] The invention relates to a bactericide, in particular to a polyhexamethylene biguanide hydrochloride bactericidal disinfectant, which belongs to the field of sterilizing products. Background technique [0002] Existing fungicides generally have certain deficiencies in the treatment effect, and the production cost is also relatively high. [0003] In order to improve the bactericidal effect of fungicides, the components of traditional fungicides contain a variety of substances harmful to the human body, threatening human health and polluting the environment; in addition, the traditional fungicides have a single type of sterilization, and the composition requires a variety of chemical substances. ingredients, resulting in an increase in preparation costs. [0004] During the growth of crops, fungal diseases such as verticillium wilt, fusarium wilt and blight are prone to occur. These fungal diseases are mainly soil infection. Once the soil is infected w...

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Problems solved by technology

[0003] In order to improve the bactericidal effect of fungicides, the components of traditional fungicides contain a variety of substances harmful to the human body, threatening human health and polluting the environment; in addition, the traditional fungicides have a single type of sterilization, and the composition requires a variety of chemical substances. ingredients, resulting in an increase in the cost of preparation

[0004] During the growth of crops, fungal diseases such as verticillium wilt, fusarium wilt and blight are prone to occur. These fungal diseases are mainly soil infection. Once the soil is infected with these germs, the crops growing on this soil will inevitably feel yellow. Fungal diseases such as wilt, fusarium wilt, blight and other fungal diseases can significantly reduce or even eliminate crops in serious plots, which has a major impact on agricultural production

[0005] At present, most of the crops affected by this disease at the early stage of growth are sprayed and sterilized with bactericidal drugs such as carbendazim, Shuangfenning, Mianfengbao, etc., but these drugs can only relieve the disease, but cannot cure it. The stubble crops will still be infected with fungal diseases such as verticillium wilt, fusarium wilt, blight, etc. Every stubble of crops needs to be sterilized, which will affect the yield of crops and increase the cost of planting

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