Antibiotic mildew-resistant algae-resistant anticorrosion paint and its uses

An anti-bacterial, mildew-proof and anti-corrosion coating technology, applied in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problem of not being able to inhibit the attachment, growth and reproduction of aquatic organisms for a long time, and to fundamentally solve the secondary pollution of drinking water. It does not have problems such as antibacterial, anti-mildew, anti-algae, etc., and achieves excellent adhesion, mechanical strength and corrosion resistance enhancement, and good construction performance.

Inactive Publication Date: 2007-12-05
RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY IN SHENZHEN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the dry film described in the application has a certain antimicrobial effect, the time is longer (for example, more than 1 month). This antimicrobial effect is due to the presence of impurities in the water flowing in the water pipe, and the pipe wall gradually becomes rough, and microorganisms began to increase gradually, so that the problem of "secondary pollution" of drinking water could not be fundamentally solved, and the attachment, growth, and reproduction of aquatic organisms such as red worms, freshwater shellfish, and shellfish on the inner wall of raw water pipelines could not be suppressed for a long time. Mainly used as anti-corrosion coating
[0005] Chinese patent application 200310107832.5 discloses a "non-toxic container inner wall coating", which is a non-toxic coating with epoxy resin as the base material and polyamide as the curing agent. For the protective coating of the inner wall of pipelines, granaries, food containers, etc., this coating is also mainly used as a kind of anti-corrosion coating. pollution" conundrum

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015]1. The components of the coating in this embodiment include a main agent and a curing agent. The epoxy resin in the main agent is epoxy resin E-44, and the nano pigments and fillers in the main agent are the above-mentioned titanium dioxide, precipitated silica, and talcum powder and fumed silica, the nano-inorganic antibacterial, mildew-proof and anti-algae agent in the main agent is the above-mentioned nano-composite inorganic antibacterial and algicide (and nano-organic silver-loaded antibacterial agent, the organic solvent in the main agent is ethanol; the curing agent is poly Amide curing agent 650. The corresponding weight ratio (expressed in parts by weight) of each component is shown in Table 1 (the symbol " / " in the table means none).

[0016] 2. The preparation method of the main agent. Add epoxy resin E-44 and ethanol to the reaction kettle according to the above weight ratio in a room with an ambient temperature of 5-50°C, and make epoxy resin E-44 under the ...

Embodiment 2 to Embodiment 48

[0022] The numerical value of the component of the coating of embodiment 2 to embodiment 48 and corresponding weight ratio (expressed in parts by weight) is shown in table 1 to table 8, and preparation method is basically the same as embodiment 1, and the impact resistance of coating is 50kgf cm, the flexibility is 0.5mm, the anti-mildew and anti-algae grades are both grade 0, the adhesion of the paint (pull-off method), the antibacterial rate against Escherichia coli and Staphylococcus aureus, and the dry film thickness of the paint once applied See Tables 1 to 8.

Embodiment 49

[0024] According to the use of one of the embodiments 1 to 12, this embodiment specifically applies the paint of one of the embodiments 1 to 12 to cover the inner wall of the pipeline respectively. The pipeline is a direct drinking water pipeline, a tap water pipeline or a raw water pipeline. For the pipelines, these pipelines have antibacterial, anti-mildew, anti-algae and anti-corrosion effects, and also have the effect of inhibiting bloodworms, freshwater shell vegetables and shellfish aquatic organisms.

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Abstract

The invention relates to a functional-form anticorrosion paint for conduits to raw water and drink water, and pipe inner wall, which comprises: curing agent, and main agent composed of epoxy resin, nano paint filler, nano inorganic antibiotic fungus-proof agent and organic solvent. This product inhibits the growth of hydrobiont, satisfies national standard with antibiotic ratio more than 99% and fungus-proof anti-algae grade all 0 grades, and belongs to green product.

Description

technical field [0001] The invention relates to an anti-corrosion paint and its application, in particular to a functional anti-corrosion paint and its application. Background technique [0002] For a long time, anti-corrosion coatings have been widely used in various fields of the national economy as a simple and effective anti-corrosion method. However, with the development of modern industry, the emergence of a number of emerging fields and the construction of many modern projects have put forward higher requirements for the functionality of anti-corrosion coatings. Commonly used anti-corrosion coatings can no longer meet these needs. [0003] At present and in the next ten years, my country will implement a large-scale direct drinking water project, that is, the water plant will further purify the tap water, and transport it to the residential water point through a special water delivery pipeline, and its water quality index will reach the standard for direct drinking. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D5/08
Inventor 刘恒权李荣先缪国元刘红波薛亚波张维丽杨建
Owner RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY IN SHENZHEN
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