Windblown sand dyeing method

Abstract

The invention relates to a windblown sand dyeing method. According to the windblown sand dyeing method, the natural windblown sand is coated by coating materials (polyurethane and organosilicone) to obtain artificial colored sand, and the surface of polyurethane is treated by organosilicone and a fluorocarbon surfactant. The coating layer of polyurethane can be bonded with the natural windblown sand firmly, thus the wear resistance of the artificial colored sand can be improved, the service life can be prolonged, and the cost can be reduced effectively. The coating layer of organosilicone has the excellent characteristics of high and low temperature resistance, oxidation resistance and stability, weather resistance, flame retardancy and corrosion resistance and is non-toxic, odorless and physiologically inert, thus the artificial colored sand effectively overcomes the problems of high preparation cost, low strength and poor colour fastness of the existing artificial colored sand. In addition, the windblown sand replaces the quartz sand which is commonly used in the prior art, the problems that the windblown sand is hard, has a small surface area and is difficult to dye are overcome, the utilization way of windblown sand resources is created, a new deep processing direction is provided for windblown sand treatment, no mineral resources need to be exploited, and the product cost is reduced significantly.

Description

technical field [0001] The invention relates to a surface decoration material and a preparation method, in particular to a wind-sand dyeing method. Background technique [0002] With the development of economy and technology and the improvement of people's aesthetic concept, the decorative effect of ordinary exterior wall paint can no longer meet the needs of the market. In recent years, real stone paint and texture paint have gradually replaced the original ordinary latex paint, and the main raw material of real stone paint is natural colored sand. As a surface decoration material, colored sand is generally divided into two types: natural colored sand and artificial colored sand. Natural colored sand is obtained by directly crushing colored ores in nature, but most of them have chaotic color, poor strength, easy differentiation, and unstable color batches, tight supply, and high prices. Artificial colored sand is obtained by covering mineral particles with a colored coati...

AI Technical Summary

Problems solved by technology

[0004] At present, there are mainly three manufacturing methods of artificial colored sand: the first is the dyeing method with organic pigments, which mainly uses organic binders with strong binding force with sand and gravel, such as neoprene rubber, epoxy resin, partial chloride resin, etc. ; but the colored sand prepared by this type has poor aging resistance and is easy to fade over time

The second method is to coat the surface layer of quartz sand with resin mixed with inorganic pigments, and then bake and solidify the coloring at a temperature of 200-300°C; this method also has defects such as poor aging resistance, easy fading and uneven wrapping.

[0006] At present, in response to the sandstorm problem, people mainly focus on sandstorm control, such as reducing the land population load in the sandy area, increasing the coverage of shrub and grass vegetation in the sandy area, and creating a windbreak and sand-fixing forest belt, etc.; Blown sand has different particle sizes and shapes, and has high hardness and is not easy to dye. Therefore, there are no relevant reports on the deep processing and utilization of blown sand resources. Therefore, blown sand is a resource that needs to be developed and utilized. , making it an available resource, not only helps to alleviate the increasingly serious problem of desertification, but also turns waste into wealth and reduces production costs