Preparation method of antimicrobial coating based on shell powder

A shell powder and coating technology, applied in antifouling/underwater coatings, coatings, protein coatings, etc., can solve the problems of complex composition of wall coatings, human and environmental pollution, complex processes, etc., to overcome the problems of trees and the environment The harm, the bacteriostatic effect is obvious, and the effect of the coating film is smooth.

Active Publication Date: 2015-10-21
舟山赛莱特海洋科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The composition of the wall paint is complicated, and the process is also complicated. Some raw materials come from chemical compounds, which will cause certain pollution and damage to the human body and the environment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0025] A preparation method based on the antibacterial coating of shell powder, comprising the following steps:

[0026] Step 1, the preparation of shell powder:

[0027] Wash the shells first, and then use a hydrochloric acid solution with a concentration of 1-3mol / L (such as 1mol / L, 1.5mol / L, 2mol / L, 2.5mol / L, 3mol / L, etc. or between any two) Or a sodium hydroxide solution with a concentration of 1-3mol / L (such as 1mol / L, 1.5mol / L, 2mol / L, 2.5mol / L, 3mol / L, etc. or between any two) is used for cleaning Shells are subjected to desalting and degreasing treatment to obtain desalted and degreasing shells;

[0028] The desalination and degreasing treatment is: soaking the washed shells in the above-mentioned hydrochloric acid solution or sodium hydroxide solution for 30-60 minutes (such as 30 minutes, 40 minutes, 50 minutes, 55 minutes, 60 minutes, etc. or any two, preferably 45 minutes); The shell is one or more of mussels, scallops, oyster shells, river clams, flower carapace...

Embodiment 1

[0044] Among the raw materials of the antibacterial coating in this embodiment, the ratio of parts by weight of shell powder, drying aid, and binder is 75:6:7.

[0045] The preparation method of the antibacterial coating of the present embodiment may further comprise the steps:

[0046] (1) Wash the shells first, and then desalt and degrease the washed shells with a hydrochloric acid solution with a concentration of 1mol / L or a sodium hydroxide solution with a concentration of 1mol / L: soak for 30 minutes to obtain desalted and degreased shells , and then dried or dried to obtain dried shells; the shells are preferably mussels.

[0047] (2) Dry the desalted and degreased shells (dried or sun-dried) to obtain dried shells; then carry out high-temperature puffing and calcining treatment at 500°C for 2 hours on the dried shells in a muffle furnace , to obtain calcined shells.

[0048] (3) Place the calcined shells in a drying oven or a dryer for cooling to obtain cooled shells. ...

Embodiment 2

[0057] Among the raw materials of the antibacterial coating in this embodiment, the ratio of parts by weight of shell powder, drying aid, and binder is 75:6:7.

[0058] The preparation method of the antibacterial coating of the present embodiment may further comprise the steps:

[0059] (1) Wash the shells first, and then desalt and degrease the washed shells with a hydrochloric acid solution with a concentration of 2mol / L or a sodium hydroxide solution with a concentration of 2mol / L: soak for 60 minutes to obtain desalted and degreased shells , and then dried or dried to obtain dried shells; the shells are preferably scallops.

[0060] (2) Dry the desalted and degreased shells (dried or sun-dried) to obtain dried shells; then carry out high-temperature puffing and calcining treatment at 500°C for 2 hours on the dried shells in a muffle furnace , to obtain calcined shells.

[0061] (3) Place the calcined shells in a drying oven or a dryer for cooling to obtain cooled shells....

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Abstract

The invention belongs to the field of coating composition, in particular relates to a preparation method of an antimicrobial coating based on shell powder. The preparation method comprises the steps of performing desalination and degreasing treatment, drying treatment, high temperature puffing calcining treatment, cooling treatment and crushing treatment on shells firstly to obtain the shell powder; adding a drying adjuvant additive and a binder in the shell power, stirring and treating the shell power to obtain the antimicrobial coating. According to the preparation method, the natural shell power is adopted as a main raw material, so that the antimicrobial coating has an obvious antimicrobial effect, is safe and without toxicity, and is suitable for a various of trees; all raw materials are in reasonable proportion, the antimicrobial coating has a good antimicrobial effect, is harmless to a human body and the environment, and the harm of an existing antimicrobial coating to trees and the environment can be overcome.

Description

technical field [0001] The invention belongs to the field of coating compositions, and in particular relates to a preparation method of an antibacterial coating based on shell powder, which uses natural shells as the main raw material and has good antibacterial effect. Background technique [0002] Lime paints are traditional water-based paints that use calcium oxide / calcium hydroxide lime powder as the primary binder. Although energy saving and environmental protection, the cost is low. However, there is a shortcoming that the coating film will have uneven cracks due to drying shrinkage stress during the process from coating to natural drying. This invention not only effectively solves the above problems, but also has better antibacterial effect. [0003] Based on the fact that our country is rich in shellfish resources, but a large number of shells are wasted, which cannot be effectively used for high value, occupies a large area, and even has a great impact on the envir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D189/00C09D139/06C09D183/04C09D5/14C09D7/12
CPCC08K5/098C09D5/14C09D7/63C09D139/06C09D183/04C09D189/00
Inventor 宋文东纪丽丽王亚宁郭健李世杰陈嘉琳
Owner 舟山赛莱特海洋科技有限公司
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