Water-based coating manufacturing method
I. Introduction
With the continuous improvement of people's awareness of environmental protection, water-based coatings have gradually become the mainstream products in the coating market. Water-based coatings are widely used in construction, furniture, automobiles, ships and other fields due to its environmental protection, safety, easy cleaning and other characteristics. In this paper, we will introduce the manufacturing method of water-based coatings in detail, aiming to promote the application and development of water-based coatings in the field of raw materials for chemical production.
II. Introduction to Waterborne Coatings
Waterborne coatings are coatings that use water as the solvent or dispersion medium, mainly including water-soluble coatings, water-dilutable coatings and water-dispersible coatings and other types. Water-based coatings have low pollution, low toxicity, non-flammable and non-explosive characteristics, has become the preferred coating under the current environmental policy.
Three, water-based coatings manufacturing method
1. Ingredients
First, according to the requirements of the coating performance, select the appropriate resin, pigment, filler, additives and other raw materials. Pay attention to ensure that the quality of raw materials is stable, so as not to affect the performance of the coating. Dispersing
Pigment, filler and other solid powders are added into the high-speed disperser, and appropriate amount of water is added for high-speed dispersing. During the process of dispersion, stirring speed and time should be controlled to ensure that the powder is fully dispersed, while avoiding excessive dispersion leading to particle fragmentation.
3. Grinding
After dispersing the slurry, it needs to be further ground to improve the fineness. Use sand mill or three-roller machine and other equipment for grinding, according to the paint performance requirements to adjust the grinding time and fineness.
4. Paint mixing
Mix the milled slurry with other raw materials such as resin and additives, and stir well. In the process of paint mixing, it is necessary to control the proportion of each component and the order of addition to ensure the stability of paint performance.
5. Filtration
After the paint mixing is completed, use the filtering equipment to remove the impurities and particles in the paint to ensure the quality of the paint.
6. Packaging
Pack the filtered paint into clean, dry drums and keep them sealed. Pay attention to clear labeling for subsequent use and management.
4. Precautions
1. Strictly control the quality of raw materials to ensure stable paint performance.
2. Control the stirring speed and time during dispersing and grinding to avoid excessive dispersing or grinding.
3. Pay attention to the proportion and adding order of each component in the process of paint mixing, so as not to affect the performance of the paint. The filtering equipment should be cleaned and replaced regularly to maintain the filtering effect.
5. The packing barrel should be clean and dry to avoid contaminating the paint.
5. Conclusion
Water-based paint as an environmentally friendly coating, its manufacturing method needs to strictly control the operating conditions of each process and the quality of raw materials. Through the manufacturing method introduced in this paper, water-based coatings with stable performance and excellent quality can be produced, providing more choices in the field of raw materials for chemical production. At the same time, with the continuous progress and development of waterborne coatings technology, its application areas will be further expanded to make greater contributions to the cause of environmental protection.
