Fire Behavior of Polyamide 12/Rubber Formulations Made by Laser Sintering.

ABSTRACT: In the present work, the processability and fire behavior of parts made by the laser sintering (LS) of polyamide 12/rubber powder blends is studied. In order to evaluate some of the interactions that could take place during LS, three acrylonitrile butadiene rubbers (NBRs) were used, which included two that had different acrylonitrile (AN) contents, and one that had carboxylated rubber. The results show that the flowability of the powders is strongly dependent on the rubber used. For the carboxylated rubber, a good flowability of the blend was observed, whereas the use of rubbers with different AN contents led to significant changes in the powder flowability, with a heterogeneous powder bed, and differences in the porosity as a function of the AN content. Furthermore, the addition of rubber

SUBMITTER: Batistella M 

PROVIDER: S-EPMC8911470 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature