Preprint Article Version 1 This version is not peer-reviewed

Preparation of SLS Polypropylene Powder by Solvent Method

Version 1 : Received: 22 June 2018 / Approved: 25 June 2018 / Online: 25 June 2018 (16:48:10 CEST)

How to cite: Fang, L.; Wang, Y..; Xu, Y.. Preparation of SLS Polypropylene Powder by Solvent Method. Preprints 2018, 2018060400 (doi: 10.20944/preprints201806.0400.v1). Fang, L.; Wang, Y..; Xu, Y.. Preparation of SLS Polypropylene Powder by Solvent Method. Preprints 2018, 2018060400 (doi: 10.20944/preprints201806.0400.v1).

Abstract

The application of solvent method in the preparation of polypropylene powders was investigated, including the influence of various technological conditions, such as the raw material melt index of polypropylene, processing temperature, dosage of the solvent and the packing pressure. The experimental data show that using solvent method can effectively produce polypropylene powder, and the optimal technological conditions are: melt index of polypropylene being about 17.8 g/10min, processing temperature being about 166.0 ℃, dosage of the solvent being about 0.067g/ml and the packing pressure being about 0.7MPa.Under this technological conditions, polypropylene powder with excellent sphericity could be prepared, the apparent density of powder can reach 0.40 g/cm3 and the prepared powder displayed a narrow size distribution with the mean size of about 42.7 µm.

Subject Areas

polypropylene powder; solvent method; selective laser sintering; 3D print

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