Erfolgreicher Lösungsvertrieb

Klimke, Robert; Faber, Manfred

doi:10.1007/978-3-658-02976-0

Cited by 1 publication

(3 citation statements)

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“…ABS degrades by chain scission and cross-linking mechanism due to the Advanced Materials Letters Copyright © 2017 VBRI Press 716 thermal energy [5] while HMS-PP builds further interconnections activated through the elevated temperature because of butadiene monomer residues still present in the grafted copolymer [6]. The master curves of ABS concluded that data measured at 250°C deviates significantly from the curves derived from measurements at lower temperatures.…”

Section: Resultsmentioning

confidence: 99%

“…This is due to the manufacture mechanism of HMS-PP, namely grafting butadiene to the polypropylene chain, where residues of the monomer stay present in the material [6]. The data points obtained through frequency sweeps at 170 °C, 220 °C and 250 °C, respectively, presented in (Fig.…”

Section: Rheological Measurementsmentioning

confidence: 99%

“…A different material, featuring similar good properties yet not being used in FDM is high melt strength polypropylene (HMS-PP) which is produced by grafting butadiene to the polypropylene chain to obtain long-chain branching [6]. The aim of this research contribution was to study the possibility of using this material for FDM.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Rheology of high melt strength polypropylene for additive manufacturing

Jagenteufel¹,

Hofstaetter²,

Kamleitner³

et al. 2017

Adv. Mater. Lett.

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Rheological measurements of high melt strength polypropylene (HMS-PP) were used in order to generate master curves describing the shear-dependent viscosity in comparison to acrylonitrile butadiene styrene copolymer (ABS). The latter material showed specific disadvantages in terms of thermal stability, whereas HMS-PP showed a more stable behavior at the investigated temperatures. Hereafter, the material was used in a fused deposition modeling additive manufacturing process, focusing on the investigation of possible improvements of HMS-PP over ABS. Based on the extrusion parameters for ABS, adapted parameters for HMS-PP were determined using a fused deposition modeling test bench. The rheological survey clearly showed changes in the melt viscosity of both ABS and HMS-PP due to thermal degradation. However, the comparison of rheological data of the virgin materials with those of printed material showed negligible changes. This leads to the conclusion that the thermal degradation of HMS-PP and ABS during the fused deposition modeling process is negligible, due to the short exposure time to elevated temperatures.

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Section: Resultsmentioning

confidence: 99%

Section: Rheological Measurementsmentioning

confidence: 99%