Raw lacquer and preparation method thereof

A technology of raw lacquer and non-toxic lacquer, which is applied in the direction of coating, etc., can solve the problems that the macromolecules of the paint cannot form a continuous three-dimensional network structure, the hardness of the paint film decreases, and the gloss of the paint film of the raw lacquer decreases, so as to improve the anti-ultraviolet performance and improve the paint quality. Film hardness and gloss enhancement effect

Active Publication Date: 2017-10-24
博邦新材料科技(广州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention: the current raw lacquer has poor anti-ultraviolet performance, the glossiness of the raw lacquer paint film is reduced, and because the nano-particles are pron

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0021] Take 100g of raw lacquer and 30g of 2-hydroxy-4 acryloyloxybenzophenone into a three-necked flask equipped with a thermometer and a reflux device, move the three-necked flask into a water bath, control the temperature of the water bath to 70°C, and stir and mix for 5 minutes. Then add 0.3g initiator in the there-necked flask, after stirring and reacting for 2 hours, add 8g of end-capping agent in the there-necked flask, continue stirring and reacting for 40min, after the reaction finishes, the modified raw lacquer is obtained, then take 15g of maleic acid, 8g of methyl Add methyl acrylate and 100mL water into a three-necked flask with a thermometer and a reflux device, place the three-necked flask in a water bath, control the temperature of the water bath to 85°C, stir and mix for 1min, then add 0.1g persulfuric acid into the three-necked flask Potassium, insulated and stirred for 60 minutes. After the reaction, the product was obtained. The product and 10 g of nano-tita...

example 2

[0023] Take 150g of raw lacquer and 35g of 2-hydroxy-4 acryloyloxybenzophenone into a three-necked flask equipped with a thermometer and a reflux device, move the three-necked flask into a water bath, control the temperature of the water bath to 75°C, and stir and mix for 8 minutes. Then add 0.4g initiator in the three-necked flask, stir and react for 3 hours, then add 10g end-capping agent in the three-necked flask, continue to stir and react for 45min, after the reaction is over, modified raw lacquer is obtained, and then 18g maleic acid, 10g methyl Add methyl acrylate and 150mL water into a three-necked flask with a thermometer and a reflux device, place the three-necked flask in a water bath, control the temperature of the water bath to 90°C, stir and mix for 2 minutes, then add 0.2g persulfuric acid into the three-necked flask Potassium, insulated and stirred for 75min, after the reaction, the product was obtained, the product and 13g of nano-titanium dioxide were added to...

example 3

[0025]Take 200g of raw lacquer and 40g of 2-hydroxy-4 acryloyloxybenzophenone into a three-necked flask equipped with a thermometer and a reflux device, move the three-necked flask into a water bath, control the temperature of the water bath to 80°C, and stir and mix for 10 minutes. Then add 0.5g initiator in the three-necked flask, stir and react for 3 hours, then add 12g end-capping agent in the three-necked flask, continue to stir and react for 50min, after the reaction is over, the modified raw lacquer is obtained, and then 20g of maleic acid, 12g of methyl Add methyl acrylate and 200mL water into a three-necked flask with a thermometer and a reflux device, place the three-necked flask in a water bath, control the temperature of the water bath to 95°C, stir and mix for 3 minutes, then add 0.3g of persulfuric acid into the three-necked flask Potassium, insulated and stirred for 90 minutes. After the reaction, the product was obtained. The product and 15 g of nano-titanium di...

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PUM

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Abstract

The invention discloses a raw lacquer and a preparation method thereof, belonging to the field of coating materials. The raw lacquer is prepared from the following raw materials: modified raw lacquer, an emusifier, epoxy chloropropane, dispersion liquid and a catalyst. The preparation method comprises the following steps: taking the raw materials according to parts by weight, then adding the modified raw lacquer, the epoxy chloropropane and the catalyst in the raw materials into a reaction still for reacting, then cooling to room temperature, adding the emusifier and the dispersion liquid in the raw materials, stirring, mixing, and discharging to obtain the raw lacquer. The raw lacquer has the beneficial effects that the raw lacquer has better ultraviolet resistance, a raw lacquer film has higher glossiness and pencil hardness, and the raw lacquer is worth popularizing and applying.

Description

technical field [0001] The invention relates to a raw lacquer and a preparation method thereof, belonging to the field of coatings. Background technique [0002] Raw lacquer is a milky white pure natural liquid paint harvested from lacquer trees. It gradually turns brown after exposure to air, and the surface dries and hardens in about 4 hours to form a paint film. The components of the lacquer liquid cut from the lacquer tree include: urushiol, gum, nitrogen, water and a small amount of volatile acid, etc., and nearly 80% of the ingredients are urushiol. Raw lacquer is the only natural resin coating that completes the biotransformation process and naturally dries to form a film under the catalysis of biological enzymes. Raw lacquer film has excellent durability, corrosion resistance, solvent resistance and insulation properties. As an excellent decorative and protective material, raw lacquer is widely used in industries such as petroleum, chemical industry, textile, print...

Claims

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Application Information

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IPC IPC(8): C09D151/00C09D7/12C08F289/00C08F8/18C08F8/32C08F220/30C08F222/02C08F220/14
CPCC08F8/18C08F222/02C08F289/00C08K9/10C08K2003/2241C08K2201/011C09D151/00C08F8/32C08F220/14C08L71/02C08K3/22C08F220/302
Inventor 吴义峰方晓俊宋玲
Owner 博邦新材料科技(广州)有限公司
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