The physical behavior of isotropic and oriented samples of an isotactic polypropylene (iPP)/ethylene-propylene-copolymer (EPM) reactor blend was studied by performance of dynamic mechanical measurements over a wide temperature range (DMTA). The influence of thermal history and drawing procedure was
Mechanical and transport properties of highly drawn isotactic polypropylene
β Scribed by V. Vittoria; F. De Candia; V. Capodanno; A. Peterlin
- Publisher
- John Wiley and Sons
- Year
- 1986
- Tongue
- English
- Weight
- 577 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0887-6266
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π SIMILAR VOLUMES
Measurements of a.c. impedance were carried out in the frequency range 1 Hz to lo6 Hz at room temperature on isotropic and die-drawn isotactic polypropylene. It was found that the a.c. impedance decreases with increasing draw ratio in the frequency range 1 Hz to lo4 Hz and then becomes independent o
## Abstract The values of drawing dependence of the density __Ο__, axial elastic modulus __E__, and maximum draw ratio Ξ» of crosslinked lowβdensity polyethylene (CLPE) rather similar to those obtained with unβcrosslinked branched material of similarly low density. Very much the same applies to the