Wollastonite: Reinforcement, low thermal expansion
Wollastonite is a natural occurring calcium silicate. It is formed from calcium carbonate and silicon dioxide at about 450°C. The structure of the wollastonite particles depends not only on natural conditions but also to a large extent on the preparation and size reduction techniques employed. Using specific processing technologies wollastonite powders with particle structures from nearly block-like with a low aspect ratio (LAR) (TREMIN 283-products) to exceptional acicular structures with a high aspect ratio (HAR) (TREMIN 939-products) are achieved.
High Performance Fillers based on wollastonite: TREMIN 283, TREMIN 939
Products of Quarzwerke GmbH