RESEARCH PAPER
Polyester Resins for Coating Cans with Improved Resistance to Stamping Operations: A View on Specific Properties
 
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Mendeleev University of Chemical Technology of Russia, Moscow, RUSSIA
Publication date: 2018-12-18
 
Eurasian J Anal Chem 2018;13(5):em71
 
KEYWORDS
ABSTRACT
Compositions containing epoxy diane oligomers make up a major of coatings applied to the insides of cans and other metal containers. Even though such materials allow producing coatings with good adhesion to metal substrates, with proper chemical resistance and elasticity, they have one major drawback, caused by the key component of diane epoxy resins, by the bisphenol A. The danger of this substance is that it has a negative effect on the human brain and the reproductive system, and sparks cancer. Therefore, such materials are I limited use. Composites based on polyester resins are a good alternative with good prospects. However, polyester coatings intended for cans and other packages have low resistance to sterilization, which is typically prior to a food canning process. The reason why this parameter is low is that given polymers contain a relatively high content of ester groups, which are characterized by low resistance to water, alkaline and acid agents. Such coatings can be improved in resistance by enriching the composition of their polymer macromolecules with unsaturated monomers that can homopolymerize when polyester compositions cure. These fragments are to create additional steric hindrance on diffusion for destructive ester groups and to ensure the endurance of coatings in general.
 
REFERENCES (24)
1.
Vasilev YaD, Zamogilnyi RA, Samokish DN. The Trends in the Development of the International Production and Consumption of the Tin Plate. Ferrous Metallurgy. Bulletin of Scientific, Technical and Economic Information 2017;9(1413):61-67.
 
2.
Poltorak EV, Popova TS, Sylvanskiy NA. The use of scientific achievements in engineering as a factor reducing the environmental burden. Eurasian Union of Scientists 2015;11-3(20):104-107.
 
3.
Maksimov EA, Shatalov RA. The Modern Lines for Applying the Polymer Coatings on the Metallic Rolled Products in the Coils. Ferrous Metallurgy. Bulletin of Scientific, Technical and Economic Information 2016;6(1398):52-59.
 
4.
Report of Joint FAO/WHO Expert Meeting 2–5 November 2010 and Report of Stakeholder Meeting on Bisphenol A 1 November 2010 Ottawa, Canada.
 
5.
Scientific Opinion on the risks to public health related to the presence of bisphenol A (BPA) in foodstuffs: Part I – Exposure assessment (2015). EFSA Journal 13 (1), 3978.
 
6.
Eladak S, Grisin T, Moison D, Guerquin MJ, N’Tumba-Byn T, Pozzi-Gaudin S, ... Habert R. A new chapter in the bisphenol A story: bisphenol S and bisphenol F are not safe alternatives to this compound. Fertility and sterility 2015;103(1):11-21. https://doi.org/10.1016/j.fert....
 
7.
US 9550913. Coating composition for metal substrates.
 
8.
US 20040081850. Polyester coil coating.
 
9.
RU 2388766. Material for coating the inside of containers contacting with food products or flavoring substances. The substrate coated with said coating. A container with a coated substrate.
 
10.
Health-Based Exposure Standard 2.3.3.97 2-00 Maximum Permissible Quantities of Substances Released from Materials that are in Contact with Food.
 
11.
RU 2373244. Aqueous coating medium, method of producing said medium, coating made from said medium and substrate with said coating.
 
12.
RU 2562985. Coating composition with improved adhesion to containers.
 
13.
Filatova NM, Uvarov BA, Apanovich NA. Polyester varnishes and enamels for metal cans. Advances in Chemistry and Chemical Technology 2015;29(10) (169):71-73.
 
14.
Nisoli A, Doherty MF, Malone MF. Feasible regions for step-growth melt polycondensation systems. Industrial & engineering chemistry research 2004;43(2):428-440. https://doi.org/10.1021/ie0302....
 
15.
Ling Z, Wang L-S, Zhu Z-N, Dai Y-C, Dai G-C. Polyethylene terephthalate polycondensation in a rotating disk reactor. Juzhi gongye Polyester Ind. 2002;1:1-5.
 
16.
Pot U. Polyesters and alkyd resins. Moscow, Paint Media. 2009.
 
17.
Patton TC. Alkyd resin technology. Translated from English. Moscow: Khimiya Publishing House, pp. 128. 1970.
 
18.
Zhebrovsky VV, et al. Coatings for metal cans. Moscow: Khimiya Publishing House. 1987.
 
19.
Ustinovskaya MA, Sherstneva NE, Apanovich NA. Some features of the compatibility of the oligomeric-polymeric matrix in the composition of import-substituting “Haft varnishes” with enhanced barrier properties. Advances in Chemistry and Chemical Technology 2017;31(11(192)):126-128.
 
20.
Muller B, Pot U. Coating materials and coatings. Formulation principles. Moscow, Paint Media. 2007. (in Russian).
 
21.
Pokharukayeva YuE, Novikov VT, Glotova VN. Polycondensation of lactic acid to oligomers in the solution. Vestnik of Kuzbass State Technical University 2017;1(118):134-139.
 
22.
Zhao Y, Chen S-J. Polycondensation of L-aspartic acid with an acid catalyst and properties of the synthesized polysuccinimide. Gong neng gao fen zi xue bao. Journal of functional polymers 2004;4:595-598.
 
23.
Maksimov EA, Shatalov RL. Distribution investigation of edge tensions of rolled strips, connected with defects «torn edge» and «crack». Rolled Products Manufacturing 2017;4:23-26.
 
24.
GOST 15140. Paints and Varnishes. Methods for Determining Adhesion. Retrieved from http://www.vashdom.ru/gost/151....
 
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