Akzo Nobel Expancel® 551 DU 20 Dry unexpanded microspheres

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Akzo Nobel Expancel® 551 DU 20 Dry unexpanded microspheres
Categories:	Other Engineering Material; Additive/Filler for Polymer; Polymer; Thermoplastic
Material Notes:	Expancel microspheres are thermoplastic hollow spheres. The microspheres are white spherically formed particles with a thermoplastic shell encapsulating a gas. When the microspheres are heated the thermoplastic shell softens and the gas increases its pressure, resulting in an expansion of the spheres. Applications: Anti-slip coatings; Printing ink; Car underbody coatings; Industrial non-woven textiles;
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Physical Properties	Original Value	Comments

Density	<= 0.0250 g/cc	TMA
Particle Size	6.0 - 9.0 µm	D(0.5)

Thermal Properties	Original Value	Comments
Transformation Temperature	95.0 - 100 °C	Expansion Starting Temperature
	133 - 141 °C	Temp at Max Expansion

Descriptive Properties
Solvent Resistance	3	Scale of 1 to 5

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PEXPAN16 / 38073

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