Effect of aluminum sulfate content of the precipitation bath on fibre physico-mechanical properties

A high-strength fibre is obtained on spinning into precipitation baths containing 30–45 g/liter aluminum sulfate and 65–70 g/liter sulfuric acid, and having a bath density of 1.30–1.31 kg/m3. The relative breaking load of the fibre is 28 cN/tex, its elastic modulus in the wet state is 1380 MPa, and its elongation at break is 16%.