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Preparation method of microcapsule for novel environment-friendly insulating building coating

A technology of architectural coatings and microcapsules, which is applied in the field of preparation of microcapsules for new environmental protection and thermal insulation architectural coatings. energy effect

Inactive Publication Date: 2011-09-28
GUANGDONG OCEAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high price and high construction requirements, it is used more in general engineering and less in household use.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Embodiment 1 Microcapsule formula for novel environmental protection thermal insulation building coating

[0036] Core material: air, orifice diameter: 1.6 microns, pressure: 3000-3200 Pa, continuous flow for 45 minutes; wall material: yeast extract 5.9g, chitosan 1.2g, sodium alginate 1.2g, polyvinyl alcohol 0.2g ;Emulsifier: Span 0.3g, cross-linking agent: glutaraldehyde 3ml

Embodiment 2

[0037] Embodiment 2 Microcapsule formula for novel environmental protection thermal insulation building coating

[0038] Core material: carbon dioxide, orifice diameter: 1.6 microns, pressure: 3000-3200 Pa, continuous flow for 45 minutes; wall material: yeast extract 5.9g, chitosan 1.2g, sodium alginate 1.2g, polyvinyl alcohol 0.2g ; Emulsifier: Span 0.3g, cross-linking agent: glutaraldehyde 3ml

Embodiment 3

[0039] Embodiment 3 The preparation method of microcapsules for novel environmental protection thermal insulation building coatings:

[0040] (1) Emulsification: Dissolve 0.314g of Spanner in 40ml of distilled water.

[0041] (2) Dissolving: Dissolve 1.2g of sodium alginate in 80ml of distilled water.

[0042] Take 1.5ml of acetic acid and add 50ml of distilled water to dilute, and dissolve 1.2g of chitosan with it.

[0043] Get 5.9g of yeast extract and dissolve in 40ml of distilled water.

[0044] Take 6.7g polyvinyl alcohol and dissolve it in 1000ml distilled water.

[0045] (3) Pretreatment: Boil the aqueous solution of yeast extract to ensure the inactivation of yeast cells, add activated carbon that has been dried, dried and cooled to the yeast extract solution, shake it and let it stand overnight, then pass it for 100 Purpose standard sieve to remove activated carbon and some impurities mixed in the solution.

[0046] (4) Mixing and reaction: After continuously feed...

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PUM

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Abstract

The present invention relates to a preparation method of a microcapsule for a novel environment-friendly insulating building coating. The preparation method comprises the following steps of: under proper pressure, leading gas or greenhouse gas with good insulation to naturally overflow into water solution containing an emulsifying agent by an orifice, stirring to lead the water solution to form round bubbles, then adopting a layer-layer assembling technology, leading chitosan with positive electrons and yeast extract--sodium alginate with negative electrons to generate complex coacervation, precipitating in a layer-layer manner to form a bag, and forming the microcapsule by crosslinking. The present invention also discloses a novel microcapsule for the environment-friendly insulating building coating. The invention is novel and environment-friendly, preserves heat, saves energy, is economic and practical, has large market potential, convenient preservation, transportation and construction and leads the room to be more comfortable and elegant.

Description

technical field [0001] The invention belongs to a preparation method of novel microcapsules for environmental protection and thermal insulation architectural coatings. Background technique [0002] The architectural and decorative coatings at home and abroad are generally polyacrylic latex coatings. Polyacrylic acid is a petroleum resource and energy product, and the coating insulation effect of polyacrylic acid latex coating is not good. In the past 20 years, as a new type of coating that saves resources and energy, has no environmental pollution, simple process and high production efficiency, powder coating has been paid more and more attention by people. However, due to the high price and high construction requirements, it is used more in general engineering and less in household use. Contents of the invention [0003] One of the technical problems to be solved by the present invention is the formation of microbubbles through sharp holes and the stability of microbubb...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J13/10
Inventor 万义玲宋文东孙美红
Owner GUANGDONG OCEAN UNIVERSITY
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