| Autor: |
A. Podshivalov, F. Besson, T. Budtova, S. Bronnikov |
| Jazyk: |
angličtina |
| Rok vydání: |
2018 |
| Předmět: |
|
| Zdroj: |
eXPRESS Polymer Letters, Vol 12, Iss 10, Pp 856-866 (2018) |
| Druh dokumentu: |
article |
| ISSN: |
1788-618X |
| DOI: |
10.3144/expresspolymlett.2018.74 |
| Popis: |
Incompatible blends of cellulose acetate butyrate (CAB) and copolymer of ethylene, acrylic ester, and maleic anhydride (PE-Acr-MA) with a component ratio 70/30 vol% were prepared by melt extrusion at the rates of 150 and 500 rpm. The goal was to modify weak impact properties of CAB. We showed that at a speed of 500 rpm, both small individual (0.9 µm in diameter) and large coalesced (2.3 µm in diameter) particles of the PE-Acr-MA phase were formed; the impact strength of the blend increased in 6.5 times as compared with that of pure CAB. However, at a melt mixing rate of 150 rpm, the size of the individual PE-Acr-MA particles decreased in 3.8 times, whereas that of the coalesced particles diminished by 6.6 times; the impact strength of the blend increased in about 40 times as compared with that of pure CAB and reached the values around and higher than 70 kJ/m2. The effect of the screw rotating speed on viscoelastic properties of each component and their viscosity ratio was analyzed and shown to control blend morphology and mechanical properties. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
