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Antibacterial nanometer polyurethane emulsion with air purification function, method for preparing same and carpentry paint

A polyurethane emulsion and air purification technology, applied in polyurea/polyurethane coatings, biocide-containing paints, coatings, etc., can solve the problem of inability to demonstrate the effect of formaldehyde absorption and decomposition, and achieve the improvement of the antibacterial effect of the emulsion and the hardness. Effect

Inactive Publication Date: 2019-02-19
YINGDE YAJIA PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in general, it is impossible to clearly and accurately demonstrate the formaldehyde absorption and decomposition effects when TiO2 is less than 2% through this document

Method used

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  • Antibacterial nanometer polyurethane emulsion with air purification function, method for preparing same and carpentry paint
  • Antibacterial nanometer polyurethane emulsion with air purification function, method for preparing same and carpentry paint
  • Antibacterial nanometer polyurethane emulsion with air purification function, method for preparing same and carpentry paint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-4、 comparative example 1

[0035] 1. Prepare nano-polyurethane emulsion.

[0036] Refer to the following table 1 material ratio.

[0037] Table 1 The material ratio of Examples 1-4 and Comparative Example 1

[0038] Component

Material name

Example 1

Example 2

Example 3

Example 4

Comparative example 1

A

IPDI

20

30

25

23

21.5

N-210

18

15

20

16

18

B

DMPA

8

5

5

10

8

C

DEG

2.5

2

3

2

2.5

TNO

1.5

2

1

1

0

acetone

4

3

5

3

4

T-12

0.05

0.01

0.03

0.04

0.05

D

Triethylamine

8

5

3

10

8

E

Deionized water

33.35

33.99

32.47

31.96

33.35

lubricant

0.8

1

1

0.5

0.8

Nano silica

1.5

1

2

1

1.5

Nano Titanium Dioxide

1.5

1

1.5

1

1.5

Nano zinc oxide

0.8

1

1

0.5

0.8

[0039] The preparation steps are:

[0040] 1. Blow nitrogen, add material A into the reactor, stir evenly, and raise the temperature to 90°C for 2 hours;

[0041] 2. Put in material B and keep it warm for 1 hour;

[0042] 3. Cool down and put in C material, react at 60℃ for 6 hours;

[0043] 4. Cool down to 30℃ and put it into high-speed dispersing kettle, add D material to neutralize;

[0044] 5. The water added to ...

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Abstract

The invention belongs to the field of special coating, and discloses antibacterial nanometer polyurethane emulsion with an air purification function. The antibacterial nanometer polyurethane emulsionis prepared from components including, by weight, isophorone diisocyanate (IPDI), polyether N-210, 2,2-dimethylolpropionic acid (DMPA), diethylene glycol (DEG), 3,5-tri-ethoxy s-triazine (TNO), acetone, dibutyltin dilaurate T-12, triethylamine, deionized water, wetting agents, nanometer silicon dioxide, nanometer titanium dioxide and nanometer zinc oxide. The invention further discloses a method for preparing the antibacterial nanometer polyurethane emulsion and carpentry paint with the antibacterial nanometer polyurethane emulsion. The antibacterial nanometer polyurethane emulsion, the methodand the carpentry paint have the advantages that the formaldehyde conversion of the antibacterial nanometer polyurethane emulsion and the carpentry paint with the antibacterial nanometer polyurethaneemulsion can reach 90% at least, and the hardness of paint films can reach 2.5 H.

Description

Technical field [0001] The invention relates to the field of special coatings, in particular to an antibacterial nano-polyurethane emulsion with air purification function, a preparation method thereof, and wood paint. Background technique [0002] "Aqueous Resin" magazine published the paper "Synthesis and Performance Research of Antibacterial Waterborne Polyurethane". The author Zhong Dafei et al. proposed the use of small molecule organic antibacterial TNO to connect with PU through a chemical reaction, making the emulsion more antibacterial and more effective than traditional The physical addition of the antimicrobial agent is more effective, and TNO is used as a crosslinking agent to improve the mechanical and thermodynamic properties of the emulsion. [0003] It is generally believed that the aforementioned polyurethane does not have formaldehyde absorption properties. [0004] As a common formaldehyde decomposition catalyst, TiO2 has a good photocatalytic decomposition effect ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/08C09D5/14C09D7/61C08G18/75C08G18/66C08G18/10C08G18/48C08G18/34C08G18/32
CPCC08G18/10C08G18/48C08G18/755C08K2003/2241C08K2003/2296C09D5/14C09D7/61C09D175/08C08K3/36C08K3/22C08G18/348C08G18/3206C08G18/3293
Inventor 刘文革王瑛
Owner YINGDE YAJIA PAINT
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