Feeding of polyoxymethylene-containing polymers for three-dimensional printing

Polymer compositions comprising polyoxymethylene polymers having low shrinkage properties and/or expanded processing windows are disclosed. The polymer composition is particularly suitable for use in three-dimensional printing systems, such as printers using filament fusion welding technology. The polymer composition may be, for example, a feed in the form of filaments or polymer pellets. The feed can be placed in a printer cartridge for insertion into a three-dimensional printing system. In accordance with the present disclosure, polyoxymethylene polymers are combined with one or more dimensional stabilizers to significantly improve the processing characteristics of the polymers. 公开了包含具有低收缩特性和/或扩展的加工窗口的聚甲醛聚合物的聚合物组合物。该聚合物组合物特别适合用于三维打印系统，例如使用细丝熔接技术的打印机。该聚合物组合物例如可以是以细丝或聚合物粒料形式的进料。该进料可以被放置在打印机盒中以插入三维打印系统中。根据本公开，将聚甲醛聚合物与一种或多种尺寸稳定剂组合以显著改善聚合物的加工特性。