Shell-based air purifying material and preparation method thereof

A technology of air purification materials and shells, applied in the field of green ecological environment building materials, to achieve the effects of excellent self-humidity adjustment, broad decorative expressiveness, and mild process conditions

Active Publication Date: 2017-05-31
高建明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a shell-based air purification material for the deficiencies in the prior art. By reacting shell powder in situ, micron-scale calcium peroxide can be produced in the pores of the shell powder. The ability to directly oxidize and decompose harmful gases such as formaldehyde solv...

Method used

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  • Shell-based air purifying material and preparation method thereof
  • Shell-based air purifying material and preparation method thereof
  • Shell-based air purifying material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Example 1: A shell-based air purification material-powder

[0054] The raw material formula is (substance measurement unit is weight part):

[0055] ① Shell powder 100 parts

[0056] ② 58 parts of calcium chloride dihydrate

[0057] ③ 30 parts of ammonia water with a mass concentration of 20%

[0058] ④ 180 parts of hydrogen peroxide with a mass concentration of 30%

[0059] ⑤ 60 parts of 120-220 mesh natural hemihydrate gypsum

[0060] ⑥165.33 parts of water

[0061] It is prepared by the following method, the flow chart is as follows figure 1 Shown:

[0062] (1) pretreatment: add 30 parts of water in 30 parts of ammonia water and be prepared into aqueous ammonia solution; Add 135.33 parts of water in 58 parts of calcium chloride dihydrates and be prepared into the calcium chloride dihydrate aqueous solution that mass concentration is 30%;

[0063] (2) In-situ reaction: add the obtained calcium chloride dihydrate aqueous solution to the stirred tank, then immers...

Embodiment 2

[0065] Example 2: A shell-based air purification material-particles

[0066] The raw material formula is (substance measurement unit is weight part):

[0067] ① Shell powder 100 parts

[0068] ② 60 parts of calcium chloride dihydrate

[0069] ③ 35 parts of ammonia water with a mass concentration of 20%

[0070] ④ 200 parts of hydrogen peroxide with a mass concentration of 30%

[0071] ⑤ 20 parts of 120-220 mesh natural hemihydrate gypsum

[0072] ⑥ 95 parts of water

[0073] ⑦Reinforcing filler 1.0 parts (mineral fiber with a length of 0.7mm, the mineral fiber is basalt fiber)

[0074] ⑧ 28 parts of hydration liquid phase medium (combined and stirred by water, polymer emulsion, waterproofing agent and defoamer according to the mass ratio of 100:0.8:0.1:0.5 to form a uniform compound solution, wherein the polymer emulsion has a solid content of 50% seaweed biogel, water repellent is potassium methyl siliconate, defoamer is tributyl phosphate)

[0075] It is prepared by t...

Embodiment 3

[0082] Example 3: A shell-based air purification material-plate shape

[0083] The raw material formula is (substance measurement unit is weight part):

[0084] ① Shell powder 100 parts

[0085] ② 80 parts of calcium chloride dihydrate

[0086] ③ 40 parts of ammonia water with a mass concentration of 20%

[0087] ④ 250 parts of hydrogen peroxide with a mass concentration of 30%

[0088] ⑤ 80 parts of 120-220 mesh gypsum-based gelling powder (76 parts of desulfurized hemihydrate gypsum, 4 parts of white cement)

[0089] ⑥105.45 parts of water

[0090] ⑦ 1.5 parts of reinforcing filler (glass fiber with a length of 18-22mm)

[0091] ⑧ 58 parts of hydration liquid phase medium (by water, polymer emulsion, waterproofing agent, antifoaming agent according to its mass ratio is 100: 1.5: 0.5: 2.0 composite stirring to form a uniform compound solution, wherein the polymer emulsion is a solid content of 50% silicone acrylic emulsion, water repellent is potassium methyl siliconate...

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Abstract

The invention discloses a shell-based air purifying material and a preparation method thereof. Raw materials include 100 parts of shell powder, 60-80 parts of calcium chloride dihydrate, 30-40 parts of ammonia water with the concentration of 20%, 180-250 parts of hydrogen peroxide with the concentration of 30%, 20-80 parts of gypsum-based gelatinization powder and 50-180 parts of water. The preparation method comprises the following steps: carrying out pretreatment, in-situ reaction and combination to obtain a powdery material with an air purifying function; adding 0.1-3.5 parts of a reinforcing filler and 0.1-73 parts of a hydration liquid-phase medium into the powdery material, then moulding, drying, maintaining, and then carrying out finishing treatment, so that powdered granulated, shaped granular or plate-shaped shell-based air purifying material is obtained. The preparation method disclosed by the invention has the advantages that the in-situ reaction is carried out on the shell powder, so that micro-scale calcium peroxide is produced in porous channels of the shell powder, the shell powder has the capability of directly oxidizing and decomposing harmful gases such as formaldehyde, the problems that an existing air purifying material is low in purification rate and poor in purification persistence are solved, and functionality and decorativeness such as self humidity control, antibacterial and mouldproof properties, fire resistance, noninflammability, sound absorption and noise reduction can be achieved.

Description

technical field [0001] The invention relates to a shell-based air purification material and a preparation method thereof, belonging to the technical field of green ecological environment building materials. Background technique [0002] Air purification materials absorb and decompose harmful substances in the air through physical and chemical methods. The application of air purification materials is an effective way to control air pollution sources. At present, indoor air purification materials and technologies mainly include the following categories: (1) Porous media represented by activated carbon, diatom pure, nano-mineral crystals, clay, molecular sieves, etc., mainly adsorb, but the amount of adsorption is often limited. When the temperature and humidity change, it will also cause desorption; (2) One or more of HEPA, activated carbon (modified activated carbon), photocatalyst, negative ions, etc. are used to form an air purification filter element (filter membrane) for ...

Claims

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Application Information

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IPC IPC(8): B01D53/81B01D53/86B01D53/72
CPCB01D53/72B01D53/81B01D53/8668B01D2251/106B01D2255/70
Inventor 高建明
Owner 高建明
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