Desenvolvimento de uma câmara para ensaio de inflamabilidade vertical e horizontal e ensaios na poliuretana

Abstract

In view of the high number of polymer composites used in the automotive, aeronautical and other industries, the need for flammability tests was found to identify the different behavior when subjected to fire conditions. Thus, the present work aims at the development of a flammability chamber for vertical and horizontal tests and to evaluate the flammability behavior of the polyurethane composite derived from a blend of vegetable oils (PU) and added with Alumina Trihydrate (ATH). ATH is a type of additive flame retardant, which intended to reduce or extinguish fire in materials in the event of fire. The initial stage of the work is the construction of the chamber, allowing the tests to be done both horizontally and vertically. For the purpose of comparison and study, all materials will be characterized separately, being pure PU, PU added with 10%, 20% and 30% of ATH. The flammability behavior will be evaluated according to the vertical and horizontal flame flammability tests. One possible application of this is the coatings and interior parts of aircraft or automobiles. A possible application from polymeric material is that of interiors and parts of aircraft or automobiles and even in civil constructions. Regarding the vertical test, it was not possible to classify the material due to the flame extinction delay. And in the horizontal test, we observed that polyurethane (PU) had a much higher burning rate than the same one added with 10%, 20% and 30% of ATH.