You have to know! The application and research progress of water-based coatings.

Low-carbon environmental protection is the trend that today's society is pursuing, water-based coatings and their products in line with the requirements of low-carbon environmental protection, so the development potential is huge. Compared with traditional solvent-based coatings, water-based coatings have the characteristics of environmental protection and excellent performance, and become the mainstream of the development of the coating industry. With the popularization of environmental protection concept, water-based coatings will be more and more consumers

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introduction of water-based coatings
any paint that is used as a solvent or as a dispersion medium can be called a water-based coating. Water-based coatings are composed of water-based resins, neutralizers, water, etc. Because water is a dispersant or solvent, water-based coatings have the following advantages:
1. Save resources, eliminate the fire hazard during construction, reduce environmental pollution.
2. Can be applied directly in warm surfaces and humid environments.
3. Electrophoresis coating makes the coating film uniform, flat, well-expanded, with good protection performance.
4. Coating tools can be cleaned with water, which can greatly reduce the consumption of cleaning solvents.
water-based paint production process
water-based paint production process is the various components of raw materials in a certain order, scattered even process, the general latex paint production process includes three parts:
1. slurry production Preparation: First of all, water, dispersants, desmoulators, preservatives and other liquid materials into the dispersion tank, stirring well, in the mixing state of coloring pigments and body pigments in turn input, and accelerate the dispersion of 20 to 40 minutes;
2. Water-based coating preparation: in the paint tank into the emulsion, and then add thickeners, PH regulators, antifreeze, film-forming aids, defrosting agents and other additives, stirring for about 15 minutes, to completely uniform, detection of the material;
3. Coating filtration and product packaging: in the production process of latex paint, because a small number of pigment (filling) material has not been dispersed, or because of the emulsification into particles, or impurities exist in the paint, so at this time the coating needs to be filtered to remove coarse particles and impurities to obtain good quality products, according to product requirements, choose different specifications of screen and different container packaging, and do a good job of measurement, in order to get the final product.
the key points in the preparation of water-based
. 1. Formula materials should be as far as possible to choose a good dispersion of pigments and ultra-fine fillers, so as to improve product quality under the premise of the cancellation of grinding operations, simplify the production process, improve production efficiency;
2. In the early dispersion stage, the appropriate amount of HEC can be pre-invested, which not only helps to disperse, but also prevents or reduces the phenomenon of slurry contamination and improves the dispersion effect;
3 Before the addition of liquid thickener, should try to use 3 to 5 times water thinning, slowly added under full stirring, from the concentration of anti-local thickener is too high to make the emulsion group or form a glue bundle, thickener can be placed in the slurry dispersed into the slurry to fully stir to avoid the above problems;
4. Half of the way the desobbists are added to the slurry, the other half is added to the paint process, which can make the deblication effect better, and in the painting process, the stirring speed should be controlled at 200 to 40) r/mini in order to prevent the introduction of a large number of bubbles in the production process, affecting the quality of the coating.
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