Current situation and Development Countermeasures

The current situation and Development Countermeasures of coating additives (I)

coating additives are considered to be a kind of important constituent materials of coating products. It can improve the production process, improve the product performance (including the tourist liquid coating itself and the final film), improve the coating construction performance, reduce the pollution to the environment, develop the special functions of new coatings, and launch various functional coatings. Although the relative proportion of most additives used in coatings is not high, they often play a key role in improving the performance of coatings and films, so they have attracted more and more attention. In some products, it is even indispensable. Many paint manufacturers regard the application of additives in the formula as the technical know-how and technical secret of their products. Some strong grip companies even buy some kinds of additives from the market. They should implement the development strategy of efficient and green plastic granulator to achieve the purpose of monopolizing their own product market. The application and application level of coating additives have become one of the symbols to measure the level of coating production technology

1 development history and classification of paint additives

paint additives have a wide variety due to their different functions. According to incomplete statistics, it is estimated that there are thousands of species. In China, when natural resins (such as tung oil) are used to produce coatings, it has been noted that the use of Huangdan (mituoseng) can speed up the drying of the film, forming an earlier traditional drier. Because the molecular structure of surfactant contains both hydrophilic and lipophilic groups, a small amount of addition can significantly change the interfacial properties. Jinan experimental machine factory Jinan new period gold testing instrument Co., Ltd. the new model in 2017 is very beautiful. In 1929, surfactant was first introduced into the field of lotion polymerization, and the first batch of lotion polymerization patents appeared, which laid the foundation for the development of water dispersing liquid coatings. It should be said that without the discovery and introduction of emulsifiers into the paint field, it is impossible to have the era of latex paint, which accounts for nearly half of the total output of paint in the world. With the development of the world economy, different industrial fields have put forward different requirements for coatings suitable for their products, and additives with different functions have emerged to meet this requirement. At present, paint additives have a wide range of applications according to their functions. Whether they are architectural coatings, industrial materials (automotive coatings, household appliance coatings, anti-corrosion coatings, marine coatings, coil coatings, furniture coatings), or functional coatings (such as fire-retardant coatings, high-temperature coatings, heat insulation coatings, antifouling coatings, nuclear radiation resistant coatings, UV curing coatings, etc.), they are widely and widely used with various functions, To meet the expected performance requirements. At present, whether in developed countries or other countries, most of them are classified according to their functions, so as to facilitate the selection and use of coating manufacturers. The following is the classification of main coating additives:

1. Driers and anti scaling agents

2. Emulsifiers

3. Wetting and dispersing agents

4. Defoamers

5. Leveling agents, anti shrinkage cavities 15. Overload protection: automatic protection when the maximum load exceeds 10%; Agent slippery agent

6. Photoinitiator

7. UV absorber and antioxidant

8. Antifoulant

9. Mildew inhibitor and bactericide

10. Matting agent

11. Coupling agent

12. Film forming agent

13. Thickener

14. Initiator and polymerization inhibitor

15. Anti sedimentation agent and rheological agent

16. PH regulator

17. catalyst

18. Antistatic agent and conductive agent

19. Adhesion Accelerator

of course, some people also divide the additives into two categories: water-based additives and solvent-based additives, mainly for the characteristics of the coating system. It gives users a clear hint in selecting the additives used in the water-based and solvent-based coating system, and it is also very useful for users to have a reference system when selecting additives