Internal Stresses, Dimensional Instabilities and Molecular Orientations in PlasticsPresents the results of an investigation conducted at the former TNO Central Laboratory between 1968 and 1973, and also includes more recent data from the literature and the results of ground-breaking research. Increasing demands on precision injection molding, from more stringent requirements, with respect to dimensional and shape stability, to attempts to build Computer Aided Design programs that link processing conditions and product properties, have necessitated a book such as this. Topics discussed range from linear viscoelastic theory to the origin of cooling stresses, to the definition of orientation. |
Common terms and phrases
according angle applied approximation assume become behaviour birefringence calculated changes Chapter compliance conclusion Consequently consider constant cooling creep curve decrease defined deformation denotes dependence derived described determined direction effect elasticity equal equation example experiment experimental factor Figure final follows force frozen-in function further given gives glass glass transition heating increases independent integration isothermal length linear material means measured modulus negative non-isothermal obtain orientation original plot PMMA polymer positive predicted produced properties proportional quantity quenched range ratio reason recovery reduced reference region relaxation remains respect rubber sample shear shift shown in Fig shows shrinkage similar simple specimen strain stress stretching surface T₁ Table temperature tensile term tests theory thermal expansion thermal twisting torque torsion turns unit viscoelastic zero
References to this book
Structure Development During Polymer Processing António M. Cunha,Stoyko Fakirov No preview available - 2000 |