Wollastonite powder as catalyst support brake linings paper filler construction mortar ceramic glazes

Time : 2025-05-30

Tile Manufacturing:
In ceramic tile production, wollastonite powder (10–15% addition) reduces firing shrinkage by up to 30%, ensuring uniform dimensions and fewer cracks. For example, Chinese ceramic manufacturers like Monalisa Group use wollastonite to produce high-strength floor tiles with improved thermal shock resistance, ideal for commercial and residential spaces.
Refractory Materials:
In kiln linings and furnace components, wollastonite’s low thermal expansion (2.6–3.0 × 10⁻⁶/°C) enhances resistance to rapid temperature changes. Japanese refractory companies like Krosaki Harima incorporate it into alumina-silicate bricks for steelmaking furnaces, extending service life by 15–20%.

Architectural Paints:
Brands like Dulux (AkzoNobel) add wollastonite (5–8% by weight) to exterior wall paints to improve weather resistance. Its needle-like structure creates a "laminar barrier," blocking water penetration and UV degradation, reducing repainting frequency by up to 25%.
Marine Coatings:
In anti-corrosive paints for ships, wollastonite reinforces epoxy resins, enhancing adhesion to metal surfaces. Dutch coating firm Hempel uses it in hull paints to withstand saltwater corrosion, cutting maintenance costs for maritime fleets.

Automotive Components:
Automakers like Toyota use wollastonite-filled polypropylene (PP) in door panels and bumpers. A 20% wollastonite loading increases tensile strength by 40% and flexural modulus by 50%, while reducing weight by 10% compared to traditional talc-filled PP. This improves fuel efficiency and crash resistance.
Pipe and Fittings:
In PVC pipes, wollastonite (15–20%) acts as a reinforcing filler, enhancing rigidity and chemical resistance. Indian polymer company Finolex employs it to produce agricultural irrigation pipes that withstand acidic soil conditions, extending product lifespan by 10 years.

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