CaSO4 Whisker

Catalog NumberACMA00023569

CategoryNano Flame Retardant

Synonyms	Whisker Calcium Sulfate, Calcium Sulfate Whisker
Appearance	White powder

Download COA Download MSDS

Case Study

Calcium Sulfate Whiskers for Fire Retardant Enhancement of Architectural Coatings

Yang, Hsi-Chi, et al. Chemical Papers, 2017, 71, 1343-1350.

In this work, highly crystalline CaSO4·2H2O whiskers were prepared from wastewater using a microwave-assisted method. The CaSO4·2H2O whiskers exhibited a one-dimensional structure with an aspect ratio of up to 40. The study showed that CaSO4·2H O whiskers can be considered as an effective flame retardant additive to improve the fire retardant ability of architectural coatings.
Evaluation methods and results
To examine its fire retardant properties, a water-soluble coating mixed with different amounts of CaSO4·2H2O whiskers was prepared and coated on calcium silicate boards. The weight ratio of CaSO4·2H2O whiskers to water-soluble coating in the four formulations was set to 0, 5, 10, and 15 wt%, respectively.
TGA and DSC analysis show that the introduction of CaSO4·2H2O whiskers has a positive effect on the flame resistance and reduction of ignition temperature of architectural coatings.
The area fractions of pyrolysis and carbonization show a decreasing function of the CaSO4·2H2O whisker content, indicating that the addition of CaSO4·2H2O whiskers has excellent thermal insulation ability to prevent heat transfer and flame spread.

If the product of interest is not available in our catalog, please contact us to see if there is any relevant stock or other purchase channels.