wizyta

od 2020-09-20

Title: Rheological and NMR studies of polyethylene/calcium carbonate composites

Source: Solid State Nuclear Magnetic Resonance

Year : 2004

Abstract:

Rheometry, C-13 CP/MAS NMR spectra and H-1 spin-lattice relaxation times T, and Tip have been employed to study the structure and molecular dynamics in composites of polyethylene (LDPE) with calcium carbonate filler. It has been found that the addition of the filler into the polymer leads to an increase in composite rigidity and a decrease in mobility in its crystalline regions. The presence of the filler affects the crystallization process making the crystal structure less perfect and reduces the size of the crystallites.
(C) 2003 Elsevier Inc. All rights reserved.

DOI: 10.1016/j.ssnmr.2003.07.003   (Pobrane:  2020-10-21)