| Abstract: | Conclusions A model of the orientation strengthening of polymers which is based on the concept of the existence of a network of nodes which rearrange during the stretching process has been used to calculate the limiting values of degree of stretch,  , and the strength,  , of fibres of polyethylene, polycaproamide, polyvinyl alcohol, polypropylene, polyacrylonitrile, and poly-p-phenyleneterephthalamide.According to calculation, increasing the molecular weight of the polymer and decreasing the concentration of the solution being spun should lead to an increase in and ; for Terlon with a molecular weight of about 250,000, =100 and =10 GPa.Translated from Khimicheskie Volokna, No. 5, pp. 33–34, September–October, 1983. |
