A smart composite coating with photothermal response, anti-UV and anti-corrosion properties was written by Sun, Yue;Yuan, Sicheng;Fan, Weihao;Lin, Dan;Zhang, Kun;Bai, Ziheng;Zhu, Yanji;Wang, Huaiyuan. And the article was included in Chemical Engineering Journal (Amsterdam, Netherlands) in 2023.Product Details of 6683-19-8 This article mentions the following:
In order to obtain high corrosion protection coatings and break the bottleneck of epoxy (EP) in the loss of UV radiation mech. properties and phys. shielding, we report herein a smart composite coating approach. Ce ion-intercalated montmorillonite (M-Ce) provides reaction sites for 2-fluoroaniline polymerization (PFA), and their nanohybrids (PFAM-Ce) are used as effective additives to improve the anti-corrosion and anti-UV properties of EP coating. In terms of UV resistance mechanism, the free radical scavenging of PFAM-Ce conducted by the DPPH radical activity test. And UV absorption of PFAM-Ce is investigated by photometric system. Addnl., we found that the EP coating was loaded with 2 wt% PFAM-Ce, and the composite coating quickly achieved light-to-heat conversion. In contrast to conventional epoxy-based composites, the functionalized MMT based EP composites show a significant improvement in corrosion resistance under UV radiation, that is passing the 500-h weatherproof test (B-SUN-II) and 90-day 3.5 wt% NaCl immersion electrochem. testing. The results reveal that the uniformly dispersed PFAM-Ce in the fracture surface of the coating could provide the phys. shielding, anodic protection and cathodic inhibition on the steel substrates. This provides a new method for the enhancement of UV resistance of epoxy coatings and reveals the importance of functionalized polyaniline in anti-UV and anti-corrosion. In the experiment, the researchers used many compounds, for example, 2,2-Bis(((3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoyl)oxy)methyl)propane-1,3-diyl bis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate) (cas: 6683-19-8Product Details of 6683-19-8).
2,2-Bis(((3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoyl)oxy)methyl)propane-1,3-diyl bis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate) (cas: 6683-19-8) belongs to esters. Esters are also usually derived from carboxylic acids. It may also be obtained by reaction of acid anhydride or acid halides with alcohols or by the reaction of salts of carboxylic acids with alkyl halides. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.Product Details of 6683-19-8
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics