Environment-friendly antibacterial polymer emulsion building waterproof coating and preparation method thereof

A technology of polymer emulsion and building waterproofing, which is applied in the direction of antifouling/underwater coatings, coatings, paints containing biocides, etc. It can solve the problems of unsustainable antibacterial effect, poor antibacterial stability, and poor compatibility of bactericidal systems, etc. , to achieve long-term antibacterial performance, stable performance, and excellent waterproof effect

Pending Publication Date: 2022-06-24
BEIJING ORIENTAL YUHONG WATERPROOF TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The object of the present invention is to provide a kind of environment-friendly antibacterial polymer emulsion building waterproof coating and its preparation method, through the design of environment-friendly antibacterial polymer emulsion building waterproof coating and its preparation method to solve the existing solution polymer existing in the prior art Poor matching of the sterilization system of the emulsion waterproof coating, poor antibacterial stability, and technical problems that the antibacterial effect is not durable

Method used

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  • Environment-friendly antibacterial polymer emulsion building waterproof coating and preparation method thereof

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[0037] The present invention also provides a preparation method based on the environmental protection antibacterial polymer emulsion construction waterproof coating as described in any one of the above, comprising the following preparation steps:

[0038]Weigh the raw materials according to the proportion, add the deionized water into the liquid material mixing tank after metering, turn on the disperser of the mixing tank, keep the rotation speed at 180-220r / min, add the dispersant and defoamer in turn, and stir for 2-5 minutes ;

[0039] Add ethylene-polyvinyl acetate emulsion and plasticizer in turn, keep rotating speed 250-350r / min and stir for 3-6 minutes;

[0040] Slowly add nano-titanium dioxide, mica powder, and precipitated barium sulfate in turn, keep the rotating speed at 750-850r / min and stir for 18-22 minutes;

[0041] Slowly add basic magnesium hypochlorite and polyquaternary phosphine salt bactericides in turn, keep the rotating speed at 550-650r / min and stir fo...

Embodiment 1

[0047] Preparation of sample 1:

[0048] Weigh 400 parts of ethylene-polyvinyl acetate emulsion, 2 parts of polyquaternary phosphonium salt bactericide, 5 parts of basic magnesium hypochlorite, 20 parts of nano titanium dioxide, 150 parts of mica powder, 300 parts of precipitated barium sulfate, 30 parts of plasticizer parts, 4 parts of dispersant, 6 parts of defoamer and 90 parts of deionized water;

[0049] Add deionized water into the liquid material stirring tank, turn on the disperser of the stirring tank, keep the rotating speed at 200r / min, add dispersant and defoamer in turn, and stir for 3 minutes;

[0050] Add ethylene-polyvinyl acetate emulsion and plasticizer in turn, keep the rotating speed at 300r / min and stir for 5 minutes;

[0051] Slowly add mica powder, precipitated barium sulfate and nano-titanium dioxide in turn, keep the rotating speed at 800r / min and stir for 20 minutes;

[0052] Finally, slowly add polyquaternary phosphonium salt bactericide and basic ...

Embodiment 2

[0056] Preparation of sample 2:

[0057] The preparation method of sample 2 is the same as that of sample 1, except that 350 parts of ethylene-polyvinyl acetate emulsion, 1 part of polyquaternary phosphonium salt fungicide, 10 parts of nano-titanium dioxide, 100 parts of mica powder, 250 parts of precipitated barium sulfate, 20 parts of plasticizer, 3 parts of dispersant, 3 parts of defoamer, the properties obtained are shown in Table 1.

[0058] Through the comparison of sample 1 and sample 2, it is found that sample 1 is better than sample 2 in terms of tensile strength, elongation at break and antibacterial effect.

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Abstract

The invention relates to an environment-friendly antibacterial polymer emulsion building waterproof coating and a preparation method thereof. The coating comprises the following components in parts by weight: 350-450 parts of an ethylene-polyvinyl acetate emulsion, 16-33 parts of a bactericide, 350-550 parts of a filler, 20-40 parts of a plasticizer, 3-6 parts of a dispersant, 3-6 parts of a defoaming agent and 80-110 parts of deionized water. Through the design of the environment-friendly antibacterial polymer emulsion building waterproof coating and the preparation method thereof, the technical problems that in the prior art, an existing polymer emulsion waterproof coating is poor in sterilization system matching performance, poor in antibacterial stability and not lasting in antibacterial effect are solved.

Description

technical field [0001] The invention relates to the technical field of waterproof coatings, in particular to an environment-friendly antibacterial polymer emulsion building waterproof coating and a preparation method thereof. Background technique [0002] Polymer emulsion architectural waterproof coating is a one-component water-emulsion waterproof coating prepared by adding polymer emulsion as the main raw material and adding other additives. It is ready-to-use, easy to construct, and widely used in the market. The implementation standard of this type of product is the Type I standard in JC / T 864-2008 "Polymer Emulsion Building Waterproof Coatings". In the production process of waterproof coating products, due to raw materials, production water, production pipelines and other reasons, bacteria and molds will inevitably exist in the products. If they are not controlled, the products will inevitably become odorous, moldy and deteriorated during the storage process. , which s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D123/08C09D5/14C09D7/61
CPCC09D123/0853C09D5/14C09D7/61C08K2003/3045C08K2003/2241C08K2201/011C08K3/24C08K3/22C08K3/34C08K3/30
Inventor 赵建成陆永平张鑫宇李建峰郭晓静
Owner BEIJING ORIENTAL YUHONG WATERPROOF TECH CO LTD
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