A kind of acrylic polyester powder coating for ceramics
A technology of acrylic polyester and powder coatings, which is applied in the field of coatings and can solve problems such as low hardness, slow drying, and low adhesion
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Embodiment 1
[0015] A kind of acrylic polyester powder coating for ceramics, its raw material ratio is as follows by weight: 100 parts of polyester resin; 6 parts of SBS; 15 parts of acrylic resin; 15 parts of rosin resin; 5 parts of blocked polyisocyanate; ; 5 parts of polymethyl siloxane; 4 parts of methacrylic acid; 4 parts of dodecyl dicarboxylic acid; 8 parts of butyl acrylate; 1 part of DOP; ; 35 parts of titanium dioxide; 0.5 parts of benzoin ether.
[0016] Put the above raw materials into the reaction kettle, raise the temperature to 80°C, keep warm for 4 hours and mix evenly, after cooling, pulverize with a pulverizer, sieve through a 120mg sieve to prepare a coating, coat it on ceramics and bake at 180°C.
[0017] The Shore hardness of the product is 40H, and there is no foaming or falling off after soaking in water for 30 days; the tensile strength is 25MPa, the drying time is 20 minutes, and there is no abnormality after soaking in 5% hydrochloric acid solution for 20 days; th...
Embodiment 2
[0019] A kind of acrylic polyester powder coating for ceramics, its raw material ratio is as follows by weight: 100 parts of polyester resin; 10 parts of SBS; 35 parts of acrylic resin; 25 parts of rosin resin; 15 parts of blocked polyisocyanate; ; 15 parts of alkyl modified organosiloxane; 8 parts of methacrylic acid; 6 parts of dodecyl dicarboxylic acid; 12 parts of butyl acrylate; 10 parts of DOP; parts; 45 parts of titanium dioxide; 1.5 parts of benzoin ether.
[0020] Put the above raw materials into the reaction kettle, raise the temperature to 120°C, keep warm for 6 hours and mix evenly, after cooling, crush it with a pulverizer, sieve it with a 150mg sieve to prepare a coating, coat it on ceramics and bake it at 180°C.
[0021] The Shore hardness of the product is 45H, and there is no foaming or falling off after soaking in water for 45 days; the tensile strength is 30MPa, the drying time is 15 minutes, and there is no abnormality after soaking in 5% hydrochloric acid ...
Embodiment 3
[0023] A kind of acrylic polyester powder coating for ceramics, its raw material ratio is as follows by weight: 100 parts of polyester resin; 8 parts of SBS; 25 parts of acrylic resin; 20 parts of rosin resin; 10 parts of blocked polyisocyanate; ; 10 parts of alkyl modified organosiloxane; 6 parts of methacrylic acid; 5 parts of dodecyl dicarboxylic acid; 10 parts of butyl acrylate; 5 parts of DBP; parts; 40 parts of titanium dioxide; 1 part of benzoin ether.
[0024] Put the above raw materials into the reaction kettle, raise the temperature to 100°C, keep warm for 5 hours and mix evenly, after cooling, pulverize with a pulverizer, sieve with a 135mg sieve to prepare a coating, coat it on ceramics and bake at 180°C.
[0025] The Shore hardness of the product is 50H, and there is no foaming or falling off after soaking in water for 60 days; the tensile strength is 35MPa, the drying time is 10min, and there is no abnormality after soaking in 5% hydrochloric acid solution for 40...
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Abstract
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