High viscous PPTA copolymer is prepared by low temperature solution copolycondensation of terephth aloylchloride, p-phenylenediamine and p, p'-diamino pheny
The results of contact angle and X-ray photoelectron spectrometry ( XPS ) reveal the effects of plasma treatment. The treated polypropylene film shows improved
Ramie fibre is harsh and rigid. Ramie yarns have a hairy feel and reduced cohesion. A considerable amount of research has been done to ease the undesirable prop
This paper describes the development of a knowledgebased system (KBS) for determining whether or not, and under what conditions, a bank Ioan officer should gran