Experimental study of the melt fracture behavior of filled high-density polyethylene melts

Baldi, Francesco; Briatico‐Vangosa, Francesco; Franceschini, A.

doi:10.1002/pen.23580

Cited by 23 publications

(15 citation statements)

References 24 publications

(37 reference statements)

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“…Indeed, for linear polymers as polyethylene oxide, oscillation of flow volume and extrusion pressures are frequently observed and known as stick slip melt fracture [ 58 , 59 ]. This oscillation phenomenon occurs at high shear rate and can be diminish by the addition of filler into the polymer matrix [ 60 ]. Filler size has been reported to influence the stick slip phenomena [ 61 ].…”

Section: Resultsmentioning

confidence: 99%

D-Sorbitol Physical Properties Effects on Filaments Used by 3D Printing Process for Personalized Medicine

et al. 2021

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Fused filament fabrication (FFF) is a process used to manufacture oral forms adapted to the needs of patients. Polyethylene oxide (PEO) filaments were produced by hot melt extrusion (HME) to obtain a filament suitable for the production of amiodarone hydrochloride oral forms by FFF 3D printing. In order to produce personalized oral forms adapted to the patient characteristics, filaments used by FFF must be controlled in terms of mass homogeneity along filament. This work highlights the relation between filament mass homogeneity and its diameter. This is why the impact of filler excipients physical properties was studied. It has been showed that the particle’s size distribution of the filler can modify the filament diameter variability which has had an impact on the mass of oral forms produced by FFF. Through this work it was shown that D-Sorbitol from Carlo Erba allows to obtain a diameter variability of less than 2% due to its unique particle’s size distribution. Using the filament produced by HME and an innovating calibration method based on the filament length, it has been possible to carry out three dosages of 125 mg, 750 mg and 1000 mg by 3D printing with acceptable mass uniformity.

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Section: Resultsmentioning

confidence: 99%

D-Sorbitol Physical Properties Effects on Filaments Used by 3D Printing Process for Personalized Medicine

et al. 2021

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“…Lamellar, flake-like talc particles showed to stabilize the flow, whereas spherical glass beads or needle-shaped glass fibers induced stickslip effect. 61…”

Section: Rheological Propertiesmentioning

confidence: 99%

Roadmap to 3D-Printed Oral Pharmaceutical Dosage Forms: Feedstock Filament Properties and Characterization for Fused Deposition Modeling

Aho

Boetker

Genina

et al. 2019

Journal of Pharmaceutical Sciences

108

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“…There are also a variety of particle fillers (Fig. d), like calcium carbonate , mica , glass beads , talc , silver , zinc oxide , titanium dioxide , and fly ash .…”

Section: Filler Reinforcementmentioning

confidence: 99%

Mechanical reprocessing of polyolefin waste: A review

Yin

Tuladhar

Shi

et al. 2015

Polymer Engineering & Sci

149

112

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Efficient technology and applications for recycled polymer waste has become increasingly important to decrease environmental contamination and to conserve nonrenewable fossil fuels. Mechanical recycling is the most widely practiced in Australia, since it is relatively easy and economic; and moreover, infrastructure for collection and reprocessing has been well established. In order to improve quality of end products of recycled plastics, various workable reprocessing techniques in the second stage of mechanical recycling have been developed and widely applied in the recycling industry. This article critically reviews the current reprocessing techniques of recycled polyolefins. Reprocessing recycled polyolefins is always accompanied with degradation, crystallization, and consequent processability problems, which result from molecular chain scission, branching, and crosslinking. The present state of knowledge and technology of various reprocessing techniques, including melt blending, filler reinforcement and mechanochemistry, is then described and evaluated systematically. Each reprocessing technique presents its own individual advantages and special applications. POLYM. ENG. SCI., 55:2899-2909, 2015

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Experimental study of the melt fracture behavior of filled high-density polyethylene melts

Cited by 23 publications

References 24 publications

D-Sorbitol Physical Properties Effects on Filaments Used by 3D Printing Process for Personalized Medicine

D-Sorbitol Physical Properties Effects on Filaments Used by 3D Printing Process for Personalized Medicine

Roadmap to 3D-Printed Oral Pharmaceutical Dosage Forms: Feedstock Filament Properties and Characterization for Fused Deposition Modeling

Mechanical reprocessing of polyolefin waste: A review

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