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A kind of antibacterial and antifungal agent and preparation method thereof and antibacterial and antifungal method

An antibacterial and antifungal agent and antifungal technology, applied in the field of antibacterial, can solve the problems of low antibacterial and antifungal performance, low production cost and high production cost, and achieve the effects of low production cost, reduced toxicity and improved aging.

Active Publication Date: 2020-08-18
CHINA BUILDING MATERIALS ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiments of the present application solve the problems of low antibacterial and antifungal performance, poor durability, high production cost and high toxicity of existing antibacterial and antifungal agents by providing an antibacterial and antifungal agent and its preparation method and antibacterial and antifungal method. The provided antibacterial and antifungal agent has excellent antibacterial and antifungal ability and antibacterial and antifungal persistence at the same time, with low production cost and low toxicity

Method used

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  • A kind of antibacterial and antifungal agent and preparation method thereof and antibacterial and antifungal method

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Experimental program
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Embodiment 1

[0029] (1) Weigh the following raw materials: 0.5gAgNO 3 , 20g nano-ZnO, 60g calcined diatomite, 15gN-octyl-4-isothiazolin-3-one, wherein the particle size of nano-ZnO is 20nm; the AgNO 3 Prepare a solution with a molar concentration of 0.5mol / L, and then calcined diatomite and AgNO 3 The solutions are mixed, stirred, and the pH value of the mixed solution is adjusted to 5, the temperature of the mixed solution is 50°C during stirring, and the stirring time is 2 hours, and then the mixed solution is centrifuged, filtered and dehydrated to obtain the first solid;

[0030] (2) N-octyl-4-isothiazolin-3-one is formulated into a solution with a mass fraction of 20%, the above-mentioned first solid is added to the solution and mixed, fully stirred and the pH value of the mixed solution is adjusted to 6, to obtain the first mixed solution;

[0031] (3) adding nano-ZnO to the above-mentioned first mixed solution, stirring at a rotating speed of 1500r / min for 2h to obtain a second mi...

Embodiment 2

[0038] (1) Weigh the following raw materials: 3gCuSO 4 , 20g nano-TiO 2 , 32g nano-ZnO, 65g first-grade diatomite, 10g benzoimidazole methyl carbamate, of which nano-TiO 2 and nano-ZnO particle size are 30nm; the CuSO 4 Prepare a solution with a molar concentration of 3mol / L, and then mix the primary diatomite and CuSO 4 The solutions are mixed, stirred, and the pH value of the mixed solution is adjusted to 8, the temperature of the mixed solution is 40°C during stirring, and the stirring time is 10 hours, and then the mixed solution is centrifuged, filtered and dehydrated to obtain the first solid;

[0039] (2) Methyl benzoimidazole carbamate is formulated into a solution with a mass fraction of 30%, the above-mentioned first solid is added to the solution and mixed, fully stirred and the pH value of the mixed solution is adjusted to 8 to obtain the first mixed solution liquid;

[0040] (3) Nano-TiO 2and nano-ZnO were added to the above-mentioned first mixed solution, an...

Embodiment 3

[0044] (1) Weigh the following raw materials: 5gCu(NO 3 ) 2 , 40g nano-TiO 2 , 62g of secondary diatomite, 10g of iodopropynyl butyl carbamate, of which nano-TiO 2 The particle size is 20nm; the Cu(NO 3 ) 2 Prepare a solution with a molar concentration of 5mol / L, and then mix the secondary diatomite and Cu(NO 3 ) 2 The solution is mixed, stirred and the pH value of the mixed solution is adjusted to 7, the temperature of the mixed solution is 80° C. during stirring, the stirring time is 7 hours, and then the mixed solution is centrifuged, filtered and dehydrated to obtain the first solid;

[0045] (2) Iodopropynyl butyl carbamate is formulated into a solution with a mass fraction of 30%, the above-mentioned first solid is added to the solution and mixed, fully stirred and the pH value of the mixed solution is adjusted to 5 to obtain the second a mixture;

[0046] (3) Nano-TiO 2 Add it into the first mixed solution above, and stir for 3 hours at a speed of 1500r / min to o...

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Abstract

The invention discloses an antibacterial and antifungal agent, a preparation method thereof and an antibacterial and antifungal method. The antibacterial and antifungal agent comprises the following raw materials in parts by weight: 0.5 to 5 parts of antibacterial metal salt, 15 to 52 parts of photocatalytic oxide, 60 to 70 parts of diatomite, and 10 to 15 parts of organic antifungal component. The antibacterial and antifungal agent has excellent antibacterial and antifungal capacities and antibacterial and antifungal durability at the same time, is low in toxicity and production cost, and can be applied to various materials, such as coating, diatom ooze, putty, mortar, and plastics.

Description

technical field [0001] The invention relates to the field of antibacterial technology, in particular to an antibacterial and antifungal agent, a preparation method thereof, and an antibacterial and antifungal method. Background technique [0002] Bacteria and viruses will exist in large numbers in densely populated and poorly ventilated places such as hospitals, living rooms, and offices. In high-temperature and high-humidity areas in the south, food workshops in special environments, and other places are prone to breed mold and bacteria. Bacterial plaques are easy to form on the surface of building coatings and affect use and environmental health. Various building decoration materials and daily-use products such as household appliances require antibacterial and anti-mildew functions, which has greatly developed the technology of anti-bacterial and anti-mildew materials. Research and development of new, efficient, non-toxic (or low-toxic), durable antibacterial materials ha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N59/16A01N59/20A01N59/26A01N43/80A01N47/18A01N47/12A01N25/08A01P1/00A01P3/00
CPCA01N25/08A01N43/80A01N47/12A01N47/18A01N59/16A01N59/20A01N59/26A01N2300/00
Inventor 王静冀志江赵春艳王晓燕杨洋侯国艳
Owner CHINA BUILDING MATERIALS ACAD
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