Description

Place of origin: liaoning China(mainland)
Grade:Excellence
Coefficiebt of thermal expansion:6.5
Refraction coefficient:1.*2
Melting point :***0(°C)
Mohs hardness:5
Density:2.8(g/cm3)
Witness:*8
PH value:9
Composition:Sio2/CaO/Fe2O3/Loi
The use of wollastonite powder:wollastonite powder has needle-like, fibrous crystal form and high whiteness and the unique physical and chemical properties,Widely used in ceramics,paints,coatings,plastics,rubber,chemicals,paper,welding,metallurgical slag as well as asbestos substitutes.
Wollastonite powder in the plastic industry not only play a role filled , but also partially replace asbestos and fiberglass for reinforcement .curently,it has been in the epoxy,phenolic,thermoset polyester,polyolefin and other plastic was applied.
In the rubber industry ,natural wollastonite has a special needle-like structure,white,non-toxic,the ultra-fine grinding,surface modification is the ideal rubber packing,rubber products not only reduce production costs,but also improve the rubber itself does not have to give special festures