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PU antibacterial coating as well as preparation method and application thereof

A technology of antibacterial paint and antibacterial agent, applied in the field of PU antibacterial paint and its preparation, can solve the problems of high VOC value and poor antibacterial durability.

Inactive Publication Date: 2021-09-10
HUNAN SOKAN NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But antibacterial coating has poor antibacterial durability and higher VOC value in the related art

Method used

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  • PU antibacterial coating as well as preparation method and application thereof
  • PU antibacterial coating as well as preparation method and application thereof
  • PU antibacterial coating as well as preparation method and application thereof

Examples

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preparation example Construction

[0078] Preparation embodiment of the present invention the antimicrobial coatings PU:

[0079] The A component and the B component, is added to the diluent, transferred to a suitable viscosity to give PU antimicrobial coatings; wherein the A component: B component: diluent ratio by weight 100: 20 ~ 25: 50 ~ 70.

[0080] Preparation embodiment of the present invention the antimicrobial coating PU:

[0081] The antibacterial coating PU coating on the substrate surface, and drying to obtain an antibacterial coating PU; PU viscosity antimicrobial coatings of 10.5s ~ 12s (NK-2 No. cups), spray coating thickness 15μm ~ 25μm, drying temperature 75 ℃ ~ 80 ℃, drying time 45min ~ 60min.

[0082] A method of preparing components: comprising the steps of:

[0083] Sl, 1 / 4 by weight of diluent added to the aluminum paste, stir until completely dissolved to obtain a solution of an aluminum paste;

[0084] S2, the adding hydroxyl acrylic resin, thermoplastic acrylic resin, unsaturated polyester ...

Embodiment 1

[0091] This embodiment is a PU antimicrobial coatings, comprising the component A and component B, wherein, as component A comprising preparing a raw material shown in Table 1 in parts by weight: B component comprises by weight as shown in Table 2 preparation of starting materials.

[0092] Table 1A parts by weight of the component feed preparation

[0093]

[0094] TABLE parts by weight of component feed preparation 2.B

[0095] B component Weight number Six methylene diisocyanate trimer 75 Butyl acetate 25

[0096] The method of preparing the above antimicrobial coatings PU specifically:

[0097] A method for preparing the above-described components:

[0098] Sl, in parts by weight, weighed aluminum paste, then add 1 / 4 by weight of diluent stir until completely dissolved to obtain a solution of an aluminum paste;

[0099] S2, in parts by weight, the hydroxyl acrylic resin, thermoplastic acrylic resin, unsaturated polyester resin and diluent were added t...

Embodiment 2

[0106] This embodiment is a PU antimicrobial coatings, comprising the component A and component B, the difference is that Example 1: preparing a raw material comprising a component A as shown in Table 3 in parts by weight.

[0107] Table 3A parts by weight of the component feed preparation

[0108]

[0109] Preparation and coating process the same as in Example 1 with the difference that reduce the amount of unsaturated polyester and 5%, increasing the amount of the thermoplastic acrylic resin to 25%.

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Abstract

The invention discloses a PU antibacterial coating as well as a preparation method and application thereof. The PU antibacterial coating comprises a component A and a component B, the component A is prepared from the following raw materials: hydroxy acrylic resin, thermoplastic acrylic resin, saturated polyester resin, aluminum paste, an antibacterial agent, a diluent, a drier and a flatting agent; and the component B is prepared from the following raw materials: a hexamethylene diisocyanate tripolymer and a solvent I. According to the PU antibacterial coating, the solid content is 35% or above during construction, and VOC emission is reduced (the VOC emission value is smaller than or equal to 700 g / L); the metal texture of the aluminum-silver powder paint is improved; and meanwhile, the PU coating disclosed by the invention is good in antibacterial effect, good in antibacterial coating dispersity, high in antibacterial efficiency and good in antibacterial durability.

Description

Technical field [0001] Technical Field The present invention relates to a coating, in particular to a PU antibacterial coating and preparation method and application. Background technique [0002] With the improvement of people's living standards, advances in the use of artificial intelligence, intelligent electronic products, such as intelligent robots, intelligent locks, and health care equipment and other products more and more common; and paints used for coating the surface of the product to make it with a beautiful, dirt, anti-scratch, anti-bacterial properties. [0003] In recent years, with the development of the times, more and more smart appliances products to market, while people on the metallic appearance of the coating is higher and higher; the same time, with the novel coronavirus outbreak, so that we pay more attention to daily life antibacterial problems; in the related art was prepared antibacterial coating, the coated product is used so that the antibacterial coa...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D5/14C09D7/65C09D133/04C09D5/38C08G18/79C08G18/62C08G18/42
CPCC09D175/04C09D5/14C09D7/65C09D5/38C08G18/792C08G18/6229C08G18/42C08G18/4063C08K2003/0812C08K2003/0806C08L2203/20C08L33/04C08K7/00C08K3/08C08K9/12C08K3/015
Inventor 王跃健汪文笔符饶生王卫国凌云剑
Owner HUNAN SOKAN NEW MATERIAL
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