A new approach to treating plastic strain in glassy polymers
A new deformation mechanism of glassy polymers is suggested. The approach is based on experimental data obtained in deformation calorimetric studies, residual strain e res recovery rate measurements, thermally stimulated creep, DSC, and others. Work and heat of deforming a sample were measured, and the concomitant variation of internal energy was calculated. A large number of glassy polymers and blends were examined. It was found that from the very start of the deformation, a rather large fraction of the work is converted to internal energy of the polymer, which suggests that essential rearrangemenu of its structure occur
The paper introducess the implemented conditions which colling recycle of flexible base on Ying-DaLine.It over all xpounds the investigation of road condlitions of original pavement,indoor trial study,determination of trial lot plan as well as completion of trial lot etc.