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Translucent low density polyethylene micro particles. Greater than 90% of particles are in specified size range. Greater than 90% of particles are spherical.
Pure polyethylene polymer microspheres in dry powder form. No solvents, additives, or colorants are used in the manufacturing process. Polyethylene microspheres are hydrophobic and need to be coated with a surfactant prior to suspending in water. We recommend Tween 80 or Tween 20 Surfactants.
Other colors, sizes and grades of polyethylene spherical particles are available:Polyethylene Microspheres (Colors, Fluorescent, Phosphorescent, Barium Sulfate)
Please Contact us for custom sizes or large quantities.
Material: Polyethylene (LDPE)
Form: Dry powder
Size Range: Each product code specifies size range (min size - max size)
Density: 0.96g/cc-0.98g/cc, each product code specifies density
Particles in Size Range: > 90%
Spherical Particles: > 90%
Auto-Ignition Temperature: 330C-410C
Index of Refraction: ~1.5
Good resistance to alcohols, dilute alkalis and acids
Limited resistance to aliphatic and aromatic hydrocarbons, mineral oils, oxidizing agents and halogenated hydrocarbons
High temperatures reduce resistance to solvents
Might soften and/or melt at temperatures above 100C
Susceptible to stress cracking, if high pressure is applied
Material Safety Data Sheet - Polyethylene Spheres, Beads, Microspheres, and Nanospheres
Some examples of applications utilizing clear polyethylene microspheres:
Born, P., Holldack, K. & Sperl, M. Particle characterization using THz spectroscopy. Granular Matter 17, 2015, 531–536. https://doi.org/10.1007/s10035-015-0578-9
Takaki, K., Rinaldi, G., Berriman, M., Pagán, A, Ramakrishnan, L. Schistosoma mansoni eggs modulate the timing of granuloma formation to promote transmission. bioRxiv 2020.04.14. https://doi.org/10.1101/2020.0...
L. X. Xu, M. S. Bhamla. Biophysical mechanism of ultrafast helical twisting contraction in the giant unicellular ciliate Spirostomum ambiguum.
bioRxiv 854836; https://doi.org/10.1101/854836
Kim, SJ., Kim, JH., The interaction of colloidal particles with weak homeotropic anchoring
energy in homogeneous nematic liquid crystal cells.
Soft Matter, 2014,10, 2664-2670 https://doi.org/10.1039/C3SM53092B
Poly(Methyl Methacrylate) PMMA Acrylic Microspheres and Spheres 1.2g/cc - 1um to 3.5mm
Soda Lime Solid Glass Microspheres 2.5g/cc - 1um to 4400um (4.4mm)
Polystyrene Microspheres, Crosslinked, 1.07g/cc - 9.5um and 105um
White Polyethylene Microspheres - 10um to 1200um (1.2mm) - 1.00-1.35g/cc