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Temperature-sensitive material, bactericide and its preparation method and application

A temperature-sensitive material and bactericide technology, applied in the field of materials, can solve problems such as easy burst release of copper ions, and achieve the effects of improving the efficacy period, simple preparation method, and improving the bactericidal effect.

Active Publication Date: 2022-05-10
QINGDAO AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide a temperature-sensitive material to solve the problem that the existing inorganic copper bactericides in the above-mentioned background technology are easy to release copper ions during use

Method used

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  • Temperature-sensitive material, bactericide and its preparation method and application
  • Temperature-sensitive material, bactericide and its preparation method and application
  • Temperature-sensitive material, bactericide and its preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0050] A temperature-sensitive material, the specific preparation method is as follows:

[0051] 1) Place a 250mL three-necked flask containing 60mL of distilled water in a water bath, raise the temperature of the water bath to 40°C, and accurately weigh 0.50g of N-isopropylacrylamide and 0.017g of N,N-methylenebispropene Amide, 0.01g methacryloyloxyethyltrimethylammonium chloride and 0.013g sodium lauryl sulfate were added to a 250mL three-necked flask, nitrogen was bubbled, and mechanical stirring was carried out at a speed of 3500 rpm. After all the added substances were dissolved and turned into a colorless uniform solution, the temperature of the water bath was raised to 70°C, 0.01g of ammonium persulfate was added, stirring was continued, and the reaction was carried out at a constant temperature for 6 hours. After natural cooling to room temperature, a microgel solution was obtained, namely poly-N- Isopropylacrylamide, ready to use;

[0052] 2) Take 30mL of the above-p...

Embodiment 2

[0054] A kind of bactericide, concrete preparation method is as follows:

[0055] 1) Place a 250mL three-necked flask containing 60mL of distilled water in a water bath, raise the temperature of the water bath to 40°C, and accurately weigh 0.50g of N-isopropylacrylamide and 0.017g of N,N-methylenebispropene Amide, 0.01g methacryloyloxyethyltrimethylammonium chloride and 0.013g sodium lauryl sulfate were added to a 250mL three-necked flask, nitrogen was bubbled, and mechanical stirring was carried out at a speed of 3500 rpm. After all the added substances were dissolved and turned into a colorless uniform solution, the temperature of the water bath was raised to 70°C, 0.01g of ammonium persulfate was added, stirring was continued, and the reaction was carried out at a constant temperature for 6 hours. After natural cooling to room temperature, a microgel solution was obtained, namely poly-N- Isopropylacrylamide, ready to use;

[0056] 2) Take 30mL of the above-prepared microge...

Embodiment 3

[0058] A kind of bactericide, concrete preparation method is as follows:

[0059] 1) Place a 250mL three-necked flask containing 50mL distilled water in a water bath, raise the temperature of the water bath to 38°C, and accurately weigh 1g of N-isopropylacrylamide and 0.015g of N,N-methylenebisacrylamide , 0.004g methacryloyloxyethyltrimethylammonium chloride and 0.029g sodium lauryl sulfate were added in a 250mL three-necked flask, nitrogen was bubbled, and mechanical stirring was carried out at a speed of 3500 rpm. After all the added substances were dissolved to form a colorless homogeneous solution, the temperature of the water bath was raised to 68°C, 0.013g of ammonium persulfate was added, stirring was continued, and the reaction was carried out at a constant temperature for 4 hours. After natural cooling to room temperature, a microgel solution was obtained, which was poly-N-iso Propylacrylamide, ready to use;

[0060] 2) Take 30mL of the above-prepared microgel solut...

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Abstract

The invention relates to the field of materials, and specifically discloses a temperature-sensitive material, a bactericide and a preparation method and application thereof. The temperature-sensitive material includes the following raw materials: poly-N-isopropylacrylamide, acrylic monomer, cross-linked agent, sodium metabisulfite and initiator. The temperature-sensitive material provided by the embodiment of the present invention can solve the problem of burst release in the field of fungicides through the relaxation of the polymer chain of the wall of the temperature-sensitive material within a certain temperature range, and the temperature-sensitive material is used to coat nano-copper hydroxide and nano-magnesium oxide The fungicide prepared from the active ingredients can realize the release of the active ingredients synchronously with the activity of harmful germs in the farmland, improve the efficacy period, and has excellent anti-rainwater erosion performance, good bactericidal effect, and the preparation method provided is simple and suitable for industrialization production, which solves the problem that the existing inorganic copper fungicides are easy to release copper ions when they are used.

Description

technical field [0001] The invention relates to the field of materials, in particular to a temperature-sensitive material, a bactericide and a preparation method and application thereof. Background technique [0002] Fungicides, also known as biocides, bactericides and algicides, microbicides, etc., are widely used in industry, agriculture and other fields as a chemical agent that can effectively control or kill bacteria, fungi and algae. [0003] Generally, fungicides are mainly divided into two types: agricultural fungicides and industrial fungicides. Among them, agricultural fungicides are of great significance to agricultural production and plant planting. At present, common agricultural fungicides include copper sulfate, Bordeaux mixture, zinc zinc, and nano-copper hydroxide. For example, Bordeaux mixture is an inorganic copper fungicide prepared by mixing copper sulfate, milk of lime and water in an appropriate proportion. It can release a certain concentration of cop...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F265/10C08F220/14C08F220/18C08F212/36C08F220/54C08F222/38C08F220/34C08F2/44C08K3/22A01N59/20A01N59/06A01N25/28A01P1/00A01P3/00
CPCC08F265/10C08F220/54C08F2/44C08K3/22A01N59/20A01N59/06A01N25/28C08K2201/011C08K2003/222C08K2003/2248C08F220/14C08F222/385C08F212/36C08F220/34
Inventor 于专妮王强相正鹏
Owner QINGDAO AGRI UNIV
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