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Method for preparing model coating for children

A model and coating technology, which is applied in the field of preparation of model coatings for children, can solve the problems of slow coalescence film formation, poor toughness, and poor adhesion, and achieve the effect of good toughness, good adhesion, and full color

Inactive Publication Date: 2017-01-04
雷春生
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Technical problem to be solved by the present invention: Aiming at the common problems of poor toughness, poor adhesion, slow drying, and slow coalescence and film formation in traditional water-based paints, a method for preparing model paints for children is provided. The method first The weeping willow leaves are subjected to alkaline extraction, and then the initial extract is fermented to obtain the stock solution, and the bisphenol A epoxy resin is reacted with polyethylene glycol to obtain a water-dispersible epoxy resin, and then the frankincense extract and the water-dispersible ring Oxygen resin, weeping willow leaf stock solution, etc. are mixed and stirred to form an emulsion, and finally additives, etc. are added to stir and ball milled to obtain mold coatings for children.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0018] First, weigh 10g of weeping willow leaves, put them into a pulverizer, and pass through an 80-mesh sieve to obtain weeping willow leaf powder. Put the powder into a beaker, then add 100mL of deionized water, soak for 2h, and then add 2g of potassium sulfate, 20mL of mass The concentration is 20% sodium hydroxide solution, soaked for 3 hours, filtered to obtain the filtrate, which is the initial extract; add the above initial extract to the fermenter, then inoculate 0.3g of Bacillus subtilis in the fermenter, and control the fermentation temperature to 25 ℃, humidity 65%, fermented for 24 hours, filtered to obtain the filtrate, that is, the stock solution of weeping willow leaves, and set aside; weigh 10g of bisphenol A epoxy resin and add it to a three-necked flask with a thermometer and a reflux device, and then add 50mL of anhydrous Ethanol, put the flask in a water bath, raise the temperature to 80°C, stir for 1 hour, then add 3g of polyethylene glycol and 0.3g of zin...

example 2

[0021]First, weigh 15g of weeping willow leaves and put them into a pulverizer to crush them, pass through a 90-mesh sieve to obtain weeping willow leaf powder, add the powder to a beaker, add 150mL of deionized water, soak for 2.5h, then add 3g of potassium sulfate, 25mL of The mass concentration is 25% sodium hydroxide solution, soaked for 3.5h, filtered to obtain the filtrate, that is, the initial extract; the above-mentioned initial extract is added to the fermenter, and then 0.4g of Bacillus subtilis is inoculated in the fermenter to control the fermentation temperature 28°C, humidity 70%, fermented for 30 hours, filtered to obtain the filtrate, that is, the stock solution of weeping willow leaves, and set aside; weigh 15g of bisphenol A epoxy resin and add it to a three-necked flask with a thermometer and a reflux device, and then add 55mL Anhydrous ethanol, put the flask in a water bath, raise the temperature to 85°C, stir for 1.5h, then add 4g of polyethylene glycol, 0....

example 3

[0024] First, weigh 20g of weeping willow leaves, put them into a pulverizer, and pass through a 100-mesh sieve to obtain weeping willow leaf powder. Put the powder into a beaker, then add 200mL of deionized water, soak for 3h, then add 4g of potassium sulfate, 30mL of mass The concentration is 30% sodium hydroxide solution, soaked for 4h, filtered to obtain the filtrate, which is the initial extract; add the above initial extract to the fermenter, and then inoculate 0.5g of Bacillus subtilis in the fermenter, and control the fermentation temperature to 30 ℃, humidity 75%, fermented for 36 hours, filtered to obtain the filtrate, that is, the stock solution of weeping willow leaves, and set aside; weigh 20g of bisphenol A epoxy resin and add it to a three-necked flask with a thermometer and a reflux device, and then add 60mL of anhydrous Ethanol, put the flask in a water bath, raise the temperature to 90°C, stir for 2 hours, then add 5g polyethylene glycol and 0.5g zinc oxide, s...

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Abstract

The invention relates to a method for preparing a model coating for children and belongs to the technical field of water-based coatings. First salix babylonica leaves undergo alkaline extraction, and then primary extraction liquid is fermented to obtain stock solution; bisphenol A type epoxy resin and polyethylene glycol react to obtain water dispersible epoxy resin; frankincense extract, the water dispersible epoxy resin and the salix babylonica leaf stock solution are mixed to be emulsion, finally auxiliaries and the like are added, and the model coating for children is obtained through stirring and ball milling and the like. The prepared model coating for children is good in toughness, good in adhesive force, high in hardness and excellent in sticking resistance, can be dried quickly and can be agglomerated quickly to form a film. Besides, the coating can effectively perform sterilization and resist viruses and have the advantages of being safe, non-toxic, high in coating surface glossiness and rich in color and the like. The model coating for children conforms to each safety standard of the nation and does not have an influence on children's health.

Description

technical field [0001] The invention relates to a preparation method of model paint for children, belonging to the technical field of water-based paint. Background technique [0002] my country is one of the major toy-producing countries in the world. The children’s toys produced are mainly exported to the United States and Europe. Most of the coatings for children’s toys are solvent-based coatings, which are characterized by fast drying, high hardness, and good adhesion resistance. However, due to the volatilization of harmful aromatic solvents such as benzene, toluene, and xylene in the coating process, the coating film contains harmful heavy metal lead, which seriously affects the environment and is gradually banned. [0003] Water-based toy coatings have emerged as the times require, and their performance fully meets the requirements of environmental protection standards, and has become a substitute for solvent-based toy coatings. Most of the water-based toy paints on th...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D7/12C09D5/14
CPCC09D163/00C08L2205/03C09D5/14C09D7/61C09D7/63C09D7/65C08L71/02C08L91/00C08K13/02C08K2003/2241C08K5/098C08K5/0058
Inventor 雷春生孟浩影
Owner 雷春生
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