Alkyl glycosides must be used in many companies

2017-12-05 10:55:29

China's coating alkyl polyglycoside industry is developing rapidly, and the raw materials related to coatings have become the just-needed products of many enterprises, although many foreign giants such as Evonik, Dow and BYK are stepping up their pace in the Chinese market, but domestically. Local companies will not be willing to hand over this big "cake", the competition is fierce. However, in the face of multinational giants, how local companies should take advantage of their advantages and seize market opportunities in the future market is not an easy task, but I think this is not something that cannot be achieved.

 China's economy is growing stronger, China's influence in the world is constantly improving, and Chinese people are increasingly inclined to support the idea of domestic production. The quality of domestically produced additives is believed to be recognized and accepted. As long as the quality is good, product R&D and product upgrades are done, this is the fundamental factor to test the development of the company. Then there is the promotion and promotion of the products. Good products and appropriate marketing strategies will help The product is accepted by the buyer. Of course, companies understand the truth and methods more than I do. I believe that more domestic auxiliaries will succeed in the future.

There are many factors affecting the leveling of the coating, the solvent's volatilization gradient and solubility, the surface tension of the coating, the wet film thickness and surface tension gradient, the rheology of the coating, the construction process and the environment. The most important factor is the surface of the coating. The tension, the surface tension gradient produced by the wet film during film formation, and the surface tension uniformity of the wet film surface layer. Improving the leveling of the coating requires consideration of adjusting the formulation and adding suitable additives to give the coating the ability to have a suitable surface tension and a gradient of surface tension.

Shrinkage refers to irregularities formed on the coating film, such as bowl-shaped small depressions, which cause the coating film to lose flatness. It is often centered on a drop or a small piece of impurities, forming a circular rib around it. From the perspective of leveling, it is a special kind of "point" flow unevenness, which is produced on the surface of the coating film. Its shape can be divided into flat, crater, point, and bottom. And so on.

Solvent-based leveling agents are primarily high-boiling solvent mixtures. Solvent-based coatings improve the leveling by simply increasing the solvent to reduce the viscosity, which will reduce the solids of the coating and cause sag, etc.; or maintain the solvent content, only add high-boiling solvent to adjust the evaporation rate to improve the leveling, drying The time is also extended accordingly. Therefore, both options are not ideal. Only the addition of a high-boiling solvent mixture exhibits various incremental characteristics (volatility index, distillation curve, solubility). The solvent-based leveling agent is mainly composed of various high-boiling mixed solvents, has good solubility, and is also a good wetting agent for pigments. At room temperature curing coating, the solvent volatilizes too fast, the viscosity of the coating increases too fast, which hinders the flow and causes brush marks, the solvent volatilization causes the shrinkage of the base material to be poor, or the boiling phenomenon and foaming occur in the baking type coating. Such auxiliaries are very effective in using such auxiliaries. In addition, the use of a high-boiling leveling agent to adjust the volatilization speed can also overcome the whitening ills.