Method for preparing pitchy pigment capable of reflecting infrared rays and heat insulating paint
A black-brown, infrared technology, applied in the direction of reflection/signal coating, pigment slurry, polyester coating, etc., can solve the problems of high cost, insufficient infrared reflection performance, complicated preparation process, etc., and achieve the effect of less investment in equipment
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Embodiment 1
[0014] Weigh the base material according to the following mass percentage: Fe 2 o 3 , 45%; CrO 3 , 25%; CoO, 13%; Al 2 o 3 , 17%. Weigh the reaction control agent according to the following mass ratio: MgO: MoO 3 :TiO 2 =20:1:1. Weigh 100 parts of matrix raw materials and 5 parts of reaction control agent in parts by weight, put them into a ball mill and dry mix and grind them evenly; calcinate the ground mixture at 1000°C for 6 hours, and put it into a ball mill after it cools down. It is ground into powder by dry method to obtain a dark brown pigment sample.
Embodiment 2
[0016] Weigh the base material according to the following mass percentage: Fe 2 o 3 , 40%; CrO 3 , 30%; CoO, 10%; Al 2 o 3 , 20%. Weigh the reaction control agent according to the following mass ratio: MgO: MoO 3 :TiO 2 =20:1:1. Weigh 100 parts of matrix raw materials and 5 parts of reaction control agent in parts by weight, put them into a ball mill and dry mix and grind them evenly; calcinate the ground mixture at 1000°C for 6 hours, and put it into a ball mill after it cools down. It is ground into powder by dry method to obtain a dark brown pigment sample.
Embodiment 3
[0018] Weigh the base material according to the following mass percentage: Fe 2 o 3 , 50%; CrO 3 , 20%; CoO, 15%; Al 2 o 3 , 15%. Weigh the reaction control agent according to the following mass ratio: MgO: MoO 3 :TiO 2 =20:1:1. Weigh 100 parts of matrix raw materials and 5 parts of reaction control agent in parts by weight, put them into a ball mill and dry mix and grind them evenly; calcinate the ground mixture at 1000°C for 8 hours, and after it cools down, put it into a ball mill to It is ground into powder by dry method to obtain a dark brown pigment sample.
[0019] The performance detection method and detection result of above-mentioned embodiment pigment sample are as follows:
[0020] The prepared above-mentioned pigment sample and common alkyd varnish are mixed evenly in a ratio of 1:9 by weight, and the obtained paint sample is rolled on the steel plate sample, and the steel plate sample is tested by the American Society for Testing and Materials ASTMD4803-8...
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