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  uses instrumented indentation technique to characterize material behavior
  uses instrumented indentation technique to characterize material behavior
  print parameters: nozzle extrusion temperature of 210°C, heat bed temperature of 55°C, deposition line (layer) height 0.2 mm, deposition line width 0.4 mm and printing speed of 50 mm/sec
  print parameters: nozzle extrusion temperature of 210°C, heat bed temperature of 55°C, deposition line (layer) height 0.2 mm, deposition line width 0.4 mm and printing speed of 50 mm/sec
dynamic ultra-micro hardness tester measured indentation hardness and elastic modulus of the composite


==='''Glass suppliers'''===
==='''Glass suppliers'''===

Revision as of 12:23, 1 November 2018

Background

Types of glass and melting points:

  • soda-lime glass:
  • borosilicate glass:

Searches:

  • Google for polymer and glass composites

Newly Synthesized Dyes and Their Polymer/Glass Composites for One- and Two-Photon Pumped Solid-State Cavity Lasing

  • Google for glass-polymer composites applications -biomedical

Moisture absorption properties of unidirectional glass/polymer composites used in composite (non-ceramic) insulators

  • google for polymer glass composite

Effect of sandblasting and silicoating on bond strength of polymer-glass composite to cast titanium possible application for glass-polymer composite 3D print

Glass Thermal Properties and Their Role in Product Design

First link at bottom of page for material comparison: [1]

hollow glass microspheres] This resource discusses use of hollow glass microspheres in glass-polymer composite fabrication. this will help me in finding a glass-polymer combination that works as a composite, but hollow glass microspheres might not be the best option for this project. Air ingisde the glass may lead to bubbles in the filament and low-quality printing.

this source offers links to other databases and suppliers of microspheres who might have some that will work for this project. Major strengths of hollow glass spheres in composites are mentioned as well.

cites Journal of Thermoplastic Composite Materials, which will likely be helpful.


summary of this study
print chamber is used for controlled environment
polypropylene is the polymer used
aminosilane-coated borosilicae glass microspheres
maleic anhydride compatiblizer used to functionalize PP
30% filler volume used for all tests
polypropylene print surface
3D-printable glass-filled Polypropylene composite can be fabricated using hollow borosilicate glass or solid soda-lime glasss spheres.
Solid spheres will be eaiser to use for my project so I will focus more on that part.
this paper discusses effects of various properties before/after addition of filler material and also compares to PLA 
investigated properties include shrinkage, tensile properties, warpage and adhesion.
polypropylene is not susceptible to moisture absorption like most conventional filament types (ABS, PLA) are.
Spheriglass 3000 solid glassmicrospheres used
30% filler volume could reduce shrinkage to a value similar to that of PLA
expanded perlite (similar chemical composition to glass) is used as filler material
low-density, low cost are best for filler materials, solid spheres are used because they are less expensive
advantage of spheres over fibers: unless fibers are randomly oriented, the shrinkage properties of fiber-reinforced polymers are anisotropic. spheres are assumed to have uniform geometry and therefore lead to isotropic material properties
shrinkage and warpage depend on filler morphology
shrinkage strongly depends on crystallinity
lower crystallinity in polymer is better, polypropylene random copolymer is used which has lower crystallinity than homopolymer
compatiblizer is polypropylene functionalized with maleic acid anhydride

Optimization of Mechanical Properties of Glass-Spheres-Filled Polypropylene Composites for Extrusion-Based Additive Manufacturing

Investigation of the Mechanical Properties of Acrylonitrile Butadiene Styrene (ABS)-Nanosilica Reinforced Nanocomposites for Fused Filament Fabrication 3D Printing

inorganic nanosilica particles with diameter of approximately 14nm are used as filler material
ABS is the polymer
nanosilica fillers dispersed ultrasonically dispersed into ABS, increases stiffness and hardness 
5 and 10 wt% filler composites are tested for mechanical properties, due to embrittlement of composite, only 5wt% was possible
uses instrumented indentation technique to characterize material behavior
print parameters: nozzle extrusion temperature of 210°C, heat bed temperature of 55°C, deposition line (layer) height 0.2 mm, deposition line width 0.4 mm and printing speed of 50 mm/sec
dynamic ultra-micro hardness tester measured indentation hardness and elastic modulus of the composite

Glass suppliers

  • Cospheric (inclused microspheres)
  • Mo-Sci corporation (includes microspheres)
  • Kopp Glass
  • Rayotek Scientific, Inc.


overview

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