Water-based polymer antibacterial material with good water resistance and preparation method thereof

A technology of water-based polymers and antibacterial materials, which is applied in the field of coatings and can solve problems such as poor functionality and insufficient processing and adaptation capabilities

Inactive Publication Date: 2021-09-10
SHENZHEN DECHENGDA PHOTOELECTRIC MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to propose a water-based polymer antibacterial material with good water resistance and its preparation method in order to solve the problems of insufficient processing adaptability and poor functionality.

Method used

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  • Water-based polymer antibacterial material with good water resistance and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] First prepare modified starch, modified water-based polyurethane and reactive emulsifier in sequence:

[0047] Step S1: cornstarch is used as raw material for modified starch, sodium periodate is used as oxidant, and hydrochloric acid is used as acidolysis agent. The acidolysis agent and oxidant are first added to deionized water for mixing, and then cornstarch is added and stirred to prepare starch milk;

[0048] Step S2: Next, transfer the prepared starch milk to a chemical reaction kettle for one-step acidolysis and oxidation reaction;

[0049] Step S3: After the acidolysis oxidation reaction is completed, the obtained material is washed until the material is neutral, then dried and ground in sequence, and finally the powdered material is filtered to obtain powdered dialdehyde starch;

[0050] Step S4: using a Fourier transform infrared spectrometer to detect the prepared powdery dialdehyde starch, and verify whether it is qualified according to the characterization; ...

Embodiment 2

[0066] First prepare modified starch, modified water-based polyurethane and reactive emulsifier in sequence:

[0067] Step S1: cornstarch is used as raw material for modified starch, sodium periodate is used as oxidant, and hydrochloric acid is used as acidolysis agent. The acidolysis agent and oxidant are first added to deionized water for mixing, and then cornstarch is added and stirred to prepare starch milk;

[0068] Step S2: Next, transfer the prepared starch milk to a chemical reaction kettle for one-step acidolysis and oxidation reaction;

[0069] Step S3: After the acidolysis oxidation reaction is completed, the obtained material is washed until the material is neutral, then dried and ground in sequence, and finally the powdered material is filtered to obtain powdered dialdehyde starch;

[0070] Step S4: using a Fourier transform infrared spectrometer to detect the prepared powdery dialdehyde starch, and verify whether it is qualified according to the characterization;...

Embodiment 3

[0086] First prepare modified starch, modified water-based polyurethane and reactive emulsifier in sequence:

[0087] Step S1: cornstarch is used as raw material for modified starch, sodium periodate is used as oxidant, and hydrochloric acid is used as acidolysis agent. The acidolysis agent and oxidant are first added to deionized water for mixing, and then cornstarch is added and stirred to prepare starch milk;

[0088] Step S2: Next, transfer the prepared starch milk to a chemical reaction kettle for one-step acidolysis and oxidation reaction;

[0089] Step S3: After the acidolysis oxidation reaction is completed, the obtained material is washed until the material is neutral, then dried and ground in sequence, and finally the powdered material is filtered to obtain powdered dialdehyde starch;

[0090] Step S4: using a Fourier transform infrared spectrometer to detect the prepared powdery dialdehyde starch, and verify whether it is qualified according to the characterization;...

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Abstract

The invention discloses a water-based polymer antibacterial material with good water resistance and a preparation method thereof. The water-based polymer antibacterial material is prepared from the following components in parts by weight: 50-70 parts of modified starch, 20-30 parts of modified water-based polyurethane, 40-50 parts of a reactive emulsifier, 10-15 parts of a nano-silver dispersant, 5-10 parts of negative ion crystals and 10-20 parts of a phenolic antioxidant. The problem that a coating film formed by waterborne polyurethane is low in initial viscosity and poor in water resistance is solved. The water resistance, salt water resistance, corrosion resistance and other physical and mechanical properties of the coating can be effectively improved by adding the reactive emulsifier, and the negative ion crystals are used, so that the waterborne polymer coating can release a large number of negative ions, the content of formaldehyde, voc and dust in indoor air is effectively reduced, and the effects of killing bacteria and removing peculiar smell are achieved.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a water-based polymer antibacterial material with good water resistance and a preparation method. Background technique [0002] With the enhancement of people's awareness of environmental protection, and the country's more and more standardized indicators for environmental protection materials, water-based polymer materials have been effectively developed and utilized, among which the use of environmental protection coatings is the most common. Coatings: coated on the surface of objects can form a A general term for a class of liquid or solid materials with protective, decorative or special properties (such as insulation, anti-corrosion, signs, etc.) of solid coating film, widely used in furniture, clothing, chemical industry, metallurgy, shipbuilding, fire protection, national defense and other fields, Using water-based polymer materials as the injection material in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D103/10C09D5/14C09D7/61C09D7/63C09D7/65C09D175/04
CPCC09D103/10C09D5/14C09D7/61C09D7/63C09D7/65C08K2003/0806C08K2201/011C08K2003/2296C08L75/04C08K5/11C08K3/08C08K3/22
Inventor 李伟谭建华张星
Owner SHENZHEN DECHENGDA PHOTOELECTRIC MATERIAL CO LTD
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