Safety of anti-mildew agent 5700-SPRAY

2021-10-28   Pageview:471

By the Chinese People’s Liberation Army Health Monitoring Center, ITS, SGS a number of domestic and foreign authoritative health units test proved: aem5700-spray treated fabrics have obvious anti-mildew, anti-corrosion effect, can completely prevent Aspergillus niger, Penicillium, Aspergillus terrestris, ball hair shell mold, miscellaneous Aspergillus and other harmful bacteria, no irritation to the skin, no allergic reaction, non-toxic to humans.

 

 

 

 

 

 

 

 

 

 

 

Group transfer initiator
Since Webster et al. of the United States DuPont Company used group transfer polymerization to synthesize acrylic polymers in 1983, the use of group transfer polymerization to synthesize acrylic resins for coatings has been extensively carried out, and significant results have been achieved. The key to the industrialization define montan wax of group transfer polymerization is the initiator.

So gah uses benzaldehyde as the initiator, Zn Brz or Buy AICI as the catalyst, and silyl vinyl ether as the monomer, and directly synthesizes polyvinyl alcohol through the group transfer polymerization technology. The difference is that it is different from the general group transfer polymerization. During this polymerization process, -SR: It starts from the transfer of monomers to initiators. As a result, the end of the living polymer chain continues to contain aldehyde groups, and the monomers are continuously transferred to aldehyde groups to finally form a polymer. Group transfer polymerization is also called Aldol-GTP. In addition to using aromatic aldehydes as initiators, aliphatic aldehydes or ketones and aromatic dialdehydes can also be used as initiators.

The polymer prepared by the group transfer polymerization technology has a uniform molecular weight distribution, a solid content of up to 60%, and no unreacted monomers, so the volatilization amount during coating is small and environmental pollution is reduced. In addition, the acrylate-based automotive mask coating synthesized by the group transfer polymerization can be cured at 82°C, and may be cured at room temperature. American DuPont company has adopted the group transfer polymerization process to develop automotive topcoat coatings, and plans to use this method to produce coatings for optical fibers. Therefore, the application prospect of group transfer polymerization in the field of coatings is very broad.

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