High temperature ceramic electric circle is not generally used in Mica torsion line production, but used to wear silk, pottery, so the products than the general power to the 0.5 to 1.5 times.

Ultrafine talc modified with macromolecule coupling agent and PP was mixed with rheometer and curves of torsion, time, temperature, prescription and rev were investigated in this paper.

Due to the effect of strain hardening, higher amount of cold deformation resulted in superior room temperature strength and inferior torsion ductility.