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A preparation process, the technology of epoxy mica iron, applied in the direction of epoxy resin coating, coating, fibrous filler, etc., can solve the problems of unfavorable coating use, inconvenient coating construction, poor redispersibility, etc., and achieve long shelf life, Good stability, improved dispersion and anti-sedimentation performance
Inactive Publication Date: 2015-08-12
安徽纽亚达科技有限责任公司
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Problems solved by technology
At present, after the epoxy mica coating prepared with mica iron oxide as raw material is left for a period of time, mica iron oxide will precipitate, which is obviously not conducive to the use of coatings; and in the actual construction process, the environment must first be removed Stir mica iron oxide evenly before painting. The redispersibility of mica iron oxide in epoxy resin paint is not good at present, and it is not easy to stir after precipitation, which brings great inconvenience to the construction of paint
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Embodiment 1
[0014] A kind of preparation technology of epoxy mica coating, comprises the following steps:
[0015] (1) Preparation of mica iron oxide powder: adding mica iron oxide raw material into a ball mill, adding water to make the solid content within 50%, and grinding for 2 hours to obtain mica iron oxide powder;
[0016] (2) Modification of mica iron oxide powder: adjust the temperature of the high mixer to 130°C, and after preheating for 20 minutes, the temperature in the cavity rises to 90°C; add the mica iron oxide powder into the preheated high mixer, After starting and stirring for 10 minutes, the temperature of the mica iron oxide powder rose to 80°C, and the stirring was turned off; then, adding 0.4% stearic acid by weight of the mica iron oxide powder, starting and stirring, and turning off the stirring after 20 minutes of reaction; finally cooled to obtain the modified mica Iron oxide powder;
[0020] A kind of preparation technology of epoxy mica coating, comprises the following steps:
[0021] (1) Preparation of mica iron oxide powder: adding mica iron oxide raw material into a ball mill, adding water to make the solid content within 65%, and grinding for 2 hours to obtain mica iron oxide powder;
[0022] (2) Modification of mica iron oxide powder: adjust the temperature of the high mixer to 130°C, and after preheating for 20 minutes, the temperature in the chamber rises to 100°C; add the mica iron oxide powder into the preheated high mixer, After starting and stirring for 10 minutes, the temperature of the mica iron oxide powder rose to 100°C, and the stirring was turned off; then, adding 1.2% stearic acid by weight of the mica iron oxide powder, starting and stirring, and turning off the stirring after 20 minutes of reaction; finally cooled to obtain the modified mica Iron oxide powder;
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Abstract
The invention discloses a preparation process of epoxy mica iron coating. The preparation process comprises the following steps: (1) preparing mica iron oxide powder: adding a mica iron oxide raw material into a ball mill, and grinding the mica iron oxide raw material to obtain mica iron oxide powder; (2) modifying the mica iron oxide powder: regulating the temperature of a high stirrer to 130 DEG C, preheating the high stirrer for 20 minutes, then, adding the mica iron oxide powder into the high stirrer to stir for 10 minutes, raising the temperature of the mica iron oxide powder to 80-100 DEG C, and stopping stirring, adding stearic acid of which the amount accounts for 0.4-1.5% of the weight of the mica iron oxide powder, stirring the stearic acid and reacting the stearic acid for 20 minutes; cooling to obtain the modified mica iron oxide powder; and (3) adding epoxy resin, a diluent, a dispersing agent, a flexibilizer, silicon dioxide, talcum powder, titanium dioxide and a curing agent into a stirrer to stir for 30 minutes with rotation speed of 1000r/min, adding the modified mica iron oxide powder, keeping the rotation speed unchanged and further stirring for 40-50 minutes. According to the preparation process for the epoxy mica iron oxide coating, the mica iron oxide is modified by taking stearic acid as a modifier, so that the dispersing and anti-settling performances are greatly improved; the prepared epoxy mica iron oxide coating is good in stability and long in quality guarantee period.
Description
technical field [0001] The invention relates to the technical field of mica iron oxide, in particular to a preparation process of epoxy mica iron coating. Background technique [0002] Mica iron oxide is a special iron ore in nature with ferric oxide as the main chemical composition. Its crystallization state is similar to mica, and its structure is scale-like, gray-black, with metallic luster. Due to its unique scaly structure, its main use is as a raw material for epoxy mica coatings. At present, after the epoxy mica coating prepared with mica iron oxide as raw material is left for a period of time, mica iron oxide will precipitate, which is obviously not conducive to the use of coatings; and in the actual construction process, the environment must first be removed Mix iron mica evenly, and then carry out coating work. The redispersibility of current mica iron oxide in epoxy resin coating is not good, and it is not easy to stir after precipitation, which brings great inco...
Claims
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