Premium
The role of lubricants in reactive compatibilization of polyolefin blends
Author(s) -
Hlavatá Drahomíra,
Kruliš Zdeněk,
Horák Zdeněk,
Lednický František,
Hromádková Jiřina
Publication year - 2001
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/1521-3900(200112)176:1<93::aid-masy93>3.0.co;2-l
Subject(s) - compatibilization , materials science , miscibility , polyolefin , polymer blend , toughness , polyethylene , composite material , zinc stearate , stearic acid , high density polyethylene , chemical engineering , polymer , organic chemistry , copolymer , chemistry , raw material , layer (electronics) , engineering
Reactive compatibilization using liquid polybutadienes and dialkyl peroxides was studied in model low‐density polyethylene/polystyrene (4/1) blends and the commingled waste of composition similar to these blends. The influence of three types of lubricants (Ca stearate, stearic acid ‐ Loxiol G20 and paraffin ‐ Loxiol G22) on the structure and toughness of these blends was determined. In spite of the fact that in the waste material, a coarse morphology and poor toughness were found in comparison with the blend of virgin polyolefins, reactive compatibilization has approximately the same effect in both types of the blends as far as the structure parameters and mechanical behaviour are concerned. This effect is enhanced by addition of lubricants, the most efficient being the paraffin in the model blends, probably due to its partial miscibility with LDPE. In the commingled waste, liquid polybutadienes supported on precipitated SiO 2 appear to be quite efficient. No influence of the reactive compatibilization on both the crystal modification and the crystalline content was observed in both types of these blends.