Obtenció d'un copolímer acrílic amb grups epoxi per a l'aplicació en tops per l'acabat de la pell

Resumen

The leather industry needs innovative products in order to satisfy the global market requirements.The current regulations are very strict,so it is necessary to preserve the environment and to take care about the people¿s health.The main object of this PhD consists in making acrylic resins for leather top coatings.In order to achieve leather finishings characterized by good performances,it is necessary to get the reticulation of the acrylic resins.The crosslinking agents (used to get high performances with leather coatings) are very irritating and harmful.They are really dangerous not only for the environment but also for people's health.This study deals with the aqueous based products development,used as top-coating for leather finishing.It is very important to obtain products with the capability to reach high performances,avoiding the danger for the people's health,and the damage of the environment.This PhD is focused on the acrylic resins synthesis.Specifically,acrylic resins functionalized with different chemical groups(carboxylic, epoxi, and amine),in order to improve their properties once applied as a finishing,on to the leather.The main goal of this research consists in being able to get acrylic resins functionalized with the different chemical groups,and then,make combinations with these resins in order to study the different reactions,without using crosslinkers.In this case,the aim consists on applying these mixtures of resins on to the leather that is going to be used for shoes upper.This project is divided in 2 parts:1.the acrylic resins synthesis,functionalized by the different chemical groups,and the sorting of the best resin for each chemical group.They are selected after being analyzed through and statistical program called Statgraphics./2.The different mixtures of resins and their results,applied as a topcoating (mixtures:carboxylic+epoxi resins,and amine+epoxi resins.The purpose is to achieve and optimal mixture for each pair of resins,and compare their results with the GERIC specifications for shoes upper.