Wollastonite

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■ Brief Introduction

Wollastonite is a kind of chain metasilicate mineral, triclinic crystal system, fine plate crystal, the aggregate is radial or fibrous. Its unique needle-like structure is used in modified plastics to enhance the mechanical strength, dimensional stability and improve the processing technology. As a high performance mineral modified material, wollastonite has a remarkable effect in various thermoplastic resin systems. Also wollastonite is widely used in high-grade coatings such as architectural coatings and industrial coatings.

■ Product Features

• Low dielectric index and high mechanical strength.

• The unique needle-like structure can improve the tensile strength, bending strength and other mechanical properties of the product.

• High refractive index, but also to maintain the surface flat and gloss.

• It can improve the scratch resistance, weather resistance and crack resistance of the coatings.

■ SEM

■ Product technical parameters

Products Name：Wollastonite/Modified wollastonite

Product Name	Model No.	Whiteness	D50 (μm)	D90 (μm)	Oil absorption value (g/100g)	Moisture (%)	Loss on Ignition (%)	Length-to-diameter ratio
Wollastonite	HY-W10	85±2	8.66	27.38	25-42	≤0.50	≤5.00	15-20:1
	HY-W18	83±2	18.01	58.73	20-35	≤0.50	≤5.00	15-20:1
	HY-W06	90±2	5.47	20.17	25-42	≤0.50	≤5.00	15-20:1
Modified wollastonite	WAP-1C	greyish white	6.5-11.0	27.0-35.0	15-25	≤0.50	≤5.00	15-20:1

The specific product values are subject to the actual factory inspection report.

■ Main applications

• Modified plastics

• Rubber

• Coatings

• Printing inks