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Nowadays, there are four types of commercially available cross-linkers for the leather industry: polyaziridines, polyisocyanates, polycarbodiimides and epoxy compounds. All these products present different chemical reactivity and have different reaction rates. This study explores the cross-linking reaction between an epoxy functional alkoxysilane and both acrylic binders and polyurethanes. Although this type of cross-linker is employed in sectors other than the leather industry, it can be used in finishing processes. A comparison of results indicates that such cross-linker presents a better cross-linking reaction rate than polyaziridine, polyisocyanate, polycarbodiimide and epoxy compounds.
CitationShendrik, A.; Bacardit, A.; Ollé, L. Study of cross-linking reactions of polysilanes. A: 2nd International Leather Engineering Congress. "Innovative Aspects for Leather Industry". Izmir: 2011, p. 21-31.
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