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A kind of acrylic acid carboxyl polyurethane powder coating for ceramics

A technology of acrylic carboxyl and polyurethane powder, applied in the field of coatings, can solve the problems of pollution durability, non-hardness, low gloss, etc., and achieve the effect of good durability

Active Publication Date: 2016-08-24
XIAN SICONG FINE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the above technical problems, the present application provides an acrylic carboxyl polyurethane powder coating for ceramics, which solves the technical problems of low gloss, non-hardness, pollution and poor durability of the existing ceramic acrylic carboxyl polyurethane powder coatings.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A kind of acrylic acid carboxyl polyurethane powder coating for ceramics, its raw material ratio by weight is as follows: 50 parts of 1,6-hexanediol; 40 parts of dehydrated castor oil; 0.5 part of dibutyltin dilaurate; 10 parts of glycerin; cyclohexyl 55 parts of isocyanate; 0.01 part of lithium hydroxide; 5 parts of benzophenone; 20 parts of linseed oil; 30 parts of hexahydrophthalic anhydride; 40 parts of dimethyl ester; 5 parts of toluene diisocyanate; 100 parts of methyl methacrylate.

[0016] Put the above raw materials into the reaction kettle, raise the temperature to 120°C, keep warm for 2 hours and mix evenly, after cooling, pulverize with a pulverizer, and sieve with a 100mg sieve to prepare the coating.

[0017] Product density 135g / cm 3 , no foaming or falling off after soaking in water for 60 days; tensile strength 20MPa, Shore hardness 40, no abnormality after soaking in 5% hydrochloric acid solution for 40 days; adhesion level 2, impact strength 550N / cm,...

Embodiment 2

[0019] A kind of acrylic acid carboxyl polyurethane powder coating for ceramics, its raw material ratio is as follows in parts by weight: 60 parts of 1,6-hexanediol; 50 parts of dehydrated castor oil; 1.5 parts of dibutyltin dilaurate; 20 parts of glycerin; cyclohexyl 65 parts of isocyanate; 0.05 parts of lithium hydroxide; 15 parts of azodicyanovaleric acid initiator; 30 parts of linseed oil; 40 parts of hexahydrophthalic anhydride; 60 parts of dimethyl adipate; 15 parts of toluene diisocyanate; 100 parts of methyl methacrylate.

[0020] Put the above raw materials into the reaction kettle, raise the temperature to 130°C, keep warm for 4 hours and mix evenly, after cooling, pulverize with a pulverizer, and sieve with a 140mg sieve to prepare the coating.

[0021] Product density 145g / cm 3 , no foaming or falling off after soaking in water for 65 days; tensile strength 25MPa, Shore hardness 50, no abnormality after soaking in 5% hydrochloric acid solution for 50 days; adhesio...

Embodiment 3

[0023] A kind of acrylic acid carboxyl polyurethane powder coating for ceramics, its raw material ratio is as follows in parts by weight: 55 parts of 1,6-hexanediol; 45 parts of dehydrated castor oil; 1 part of dibutyltin dilaurate; 15 parts of glycerin; cyclohexyl 60 parts of isocyanate; 0.03 parts of lithium hydroxide; 10 parts of azodicyanovaleric acid initiator; 25 parts of linseed oil; 35 parts of hexahydrophthalic anhydride; 50 parts of dimethyl adipate; 10 parts of toluene diisocyanate; 100 parts of methyl methacrylate.

[0024] Put the above raw materials into the reaction kettle, raise the temperature to 125°C, keep warm for 3 hours and mix evenly, after cooling, pulverize with a pulverizer, and sieve with a 120mg sieve to prepare the coating.

[0025] Product density 155g / cm 3 , no foaming or falling off after soaking in water for 70 days; tensile strength 30MPa, Shore hardness 60, no abnormality after soaking in 5% hydrochloric acid solution for 60 days; adhesion l...

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Abstract

The invention discloses an acrylic carboxyl polyurethane powder coating for ceramic. The coating is prepared from the following raw materials: 1, 6-hexanediol, dehydrated castor oil, dibutyltin dilaurate, glycerol, cyclohexyl isocyanate, lithium hydroxide, an imitator, linseed oil, hexahydrophthalic anhydride, calcium boheic acid, pigments, rosin, dimethyl adipate, toluene diisocynate and methyl methacrylate. The product density is 135-155g / cm<3>, and the coating soaked in water for 60-70 days is free from soaking and falling phenomena. The tensile strength is 20-30MPa, the shore hardness is 40-60, and the coating soaked in a 5% hydrochloric acid solution for 40-60 days is free of abnormalities. The adhesive force is levels 1-2, the impact strength is 550-650N / cm, and the coating soaked in saturated calcium hydroxide for 25-35 days is free from bubbling and wrinkling; the glossiness is 110-130%, and the gloss retention is 92-96% after being manually accelerated and aged for 500 hours.

Description

technical field [0001] The application belongs to the field of coatings, in particular to an acrylic carboxyl polyurethane powder coating for ceramics. Background technique [0002] So far, the definition of ceramics seems to be generally described as follows: ceramics are made of aluminosilicate minerals or certain oxides as the main raw material, and are produced at a certain temperature and at a certain temperature according to the intention of the person through a specific physical and chemical process. A certain type of craft rock made of atmosphere. The surface can be glazed or unglazed, and some porcelains also have different degrees of translucency. The whole body is composed of one or more crystals or amorphous cements and microstructures such as pores or clinker inclusions. Special ceramics are developed with the rapid development of modern electrical appliances, radio, aviation, atomic energy, metallurgy, machinery, chemical and other industries, as well as cutti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/14C09D5/03C09D7/12
CPCC09D5/035C09D7/61C09D7/63C09D7/65C09D175/14C08L93/04C08K5/098C08K2003/2227C08K5/11C08K2003/2272
Inventor 马志明
Owner XIAN SICONG FINE CHEM
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