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A mussel shell coating with the function of purifying indoor air and its preparation method

A mussel shell and inner air technology, applied in the field of coatings, can solve problems such as low utilization rate of sunlight, unsatisfactory catalytic performance, and uneven quality

Active Publication Date: 2020-10-23
西安千百贝新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, diatom mud coatings have been launched in the market. The disadvantages are that on the one hand, the raw materials are scarce and the quality is uneven;
[0004] Photocatalytic technology has important application value in degrading and removing harmful gases. At present, shell powder TiO 2 Coatings can remove indoor formaldehyde, however, this shell powder TiO 2 The main disadvantage of the coating is that TiO 2 It can only be driven by ultraviolet light in sunlight (accounting for only 4% of sunlight energy), and its utilization rate of sunlight is low, and its catalytic performance is not ideal

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Bi-Bi 2 o 3 / Preparation of micro-nano mussel shell composite materials: mussel shells are pre-treated, washed, air-dried, and calcined at 1000 degrees, then deeply damaged by a micro-nano pulverizer, and ground by a ball mill for 8 hours to prepare a micro-nano mussel shell material; the above materials are prepared according to the mass ratio 20:1 placed in 0.1mg / mL sodium dodecylsulfonate aqueous solution, stirred for 10h, centrifuged and dried to obtain micro-nano mussel shell modification materials; bismuth nitrate was added to ethanol solvent, stirred and mixed to obtain a concentration of 30mmol / L of bismuth nitrate solution; the micro-nano mussel shell modification material was added to the bismuth nitrate solution, mixed and stirred for 10 hours, and then placed in the reaction kettle, the filling degree of the reaction kettle was 90%, the heating rate was 2°C / min, and the temperature was 180°C. The reaction time is 10 hours, heating reaction; after the react...

Embodiment 2

[0031] Bi-Bi 2 o 3 / Preparation of micro-nano mussel shell composite materials: mussel shells are pre-treated, washed, air-dried, and calcined at 800 degrees, then deeply damaged by a micro-nano pulverizer, and ground by a ball mill for 10 hours to prepare a micro-nano mussel shell material; the above materials are prepared according to the mass ratio 50:1 in an aqueous solution of sodium dodecylsulfonate with a concentration of 1 mg / mL, stirred for 12 hours, and centrifuged to dry to obtain micro-nano mussel shell modification materials; add bismuth nitrate to ethanol solvent, stir and mix to obtain a concentration of 50 mmol / mL L of bismuth nitrate solution; add the micro-nano mussel shell modification material to the bismuth nitrate solution and mix and stir for 24 hours, then put it in the reaction kettle, the filling degree of the reaction kettle is 70%, the heating rate is 1°C / min, the temperature is 150°C, and the time is After heating for 36 hours, the reaction product...

Embodiment 3

[0034] Bi-Bi 2 o 3 / Preparation of micro-nano mussel shell composite materials: mussel shells are pre-treated, washed, air-dried, and calcined at 1200 degrees, then deeply damaged by a micro-nano pulverizer, and ground by a ball mill for 9 hours to prepare a micro-nano mussel shell material; the above materials are prepared according to the mass ratio 35:1 placed in 0.5mg / mL sodium dodecylsulfonate aqueous solution, stirred for 11h, centrifuged and dried to obtain micro-nano mussel shell modification materials; bismuth nitrate was added to ethanol solvent, stirred and mixed to obtain a concentration of 40mmol / L of bismuth nitrate solution; the micro-nano mussel shell modification material was added to the bismuth nitrate solution, mixed and stirred for 16 hours, and then placed in the reaction kettle, the filling degree of the reaction kettle was 80%, the heating rate was 1.5°C / min, and the temperature was 160°C. The reaction time is 24 hours, and the reaction is heated; aft...

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PUM

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Abstract

The invention relates to the field of paint, and discloses mussel shell paint with an indoor air purification function and a preparation method thereof. The paint is prepared from the following ingredients in parts by weight: 30 to 60 parts of Bi-Bi2O3 / micro nanometer mussel shell composite materials, 25 to 45 parts of filling materials, 20 to 30 parts of styrene-acrylic emulsion, 9 to 10 parts ofvinyl acetate-acrylic emulsion, 5 to 20 parts of pure acrylic emulsion, 10 to 20 parts of polyether surfactants, 3 to 5 parts of natural rubber, 2 to 3 parts of cellulose colloid, 5 to 6 parts of starch colloid, 2 to 5 parts of pigments, 1.2 to 1.5 parts of methacrylic acid, 0.1 to 1.5 parts of peroxide initiators and 2 to 3 parts of deionized water. The paint has the indoor air purification function, and has the advantages of safety, environment-friendly effect, excellent performance and wide use range. The preparation method is simple; green and environment-friendly effects are achieved; the scaled production is easy; an effective path is provided for avoiding the mussel shell resource waste and improving the catalyst activity of Bi-Bi2O3.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a mussel shell coating with the function of purifying indoor air and a preparation method thereof. Background technique [0002] At present, the existing interior decoration materials contain formaldehyde, causing indoor formaldehyde and other harmful gases to exceed the standard, seriously endangering people's health and even life safety. Cause people to have many diseases, such as cancer. In recent years, diatom mud coatings have been launched in the market. The disadvantages are that on the one hand, the raw materials are scarce and the quality is uneven; [0003] Mussel shell resources are a marine material with great application prospects. However, most of the mussel shells are not fully utilized, and only a small amount of them are used in the fields of building materials and livestock feed additives. Studies have shown that mussel shells can be prepared into a functional micro-na...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D4/06C09D4/02C09D5/14C09D5/16C09D7/61C09D7/65
CPCC09D4/06C09D5/14C09D5/1618C09D5/1687
Inventor 李世杰胡世伟刘艳萍姜维刘宇莫流业周英棠
Owner 西安千百贝新材料科技有限公司