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Titolo:
Thermal properties and phase structure of PP plus oligopinene blends
Autore:
Mendes, LC; Martins, BBB; Dias, ML; Chagas, BS;
Indirizzi:
Univ Fed Rio de Janeiro, Inst Macromol Prof Eloisa Mano, BR-21945970 Rio De Janeiro, Brazil Univ Fed Rio de Janeiro Rio De Janeiro Brazil BR-21945970 BCeiro, Brazil
Titolo Testata:
MATERIALS RESEARCH INNOVATIONS
fascicolo: 5-6, volume: 4, anno: 2001,
pagine: 360 - 364
SICI:
1432-8917(200104)4:5-6<360:TPAPSO>2.0.ZU;2-T
Fonte:
ISI
Lingua:
ENG
Soggetto:
HYDROGENATED OLIGO(CYCLOPENTADIENE) BLENDS; HDPE/ROSIN BLENDS; I-MORPHOLOGY; BEHAVIOR;
Keywords:
phase structure; morphology; PP; oligopinene; crystallization;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
10
Recensione:
Indirizzi per estratti:
Indirizzo: Mendes, LC Univ Fed Rio de Janeiro, Inst Macromol Prof Eloisa Mano, POB 68525, BR-21945970 Rio De Janeiro, Brazil Univ Fed Rio de Janeiro POB 68525 Rio De Janeiro Brazil BR-21945970 BC
Citazione:
L.C. Mendes et al., "Thermal properties and phase structure of PP plus oligopinene blends", MAT RES INN, 4(5-6), 2001, pp. 360-364

Abstract

Blends of polypropylene (PP) and beta -oligopinene, a synthetic low molar mass resin, were prepared by melt mixing in a Haake Rheocord at 473 K, 30 rpm during 600 s. The influence of the terpenic resin on the thermal properties, phase structure and crystallization of PP was evaluated. The DSC results indicated the presence of phase separation. The SEM analysis shows that the oligopinene was extracted along the whole surface and it was observed entities as cut cylinder atributted to low molar mass PP. The isothermal crystallization of blends was conducted at 396, 398 and 403 K. The mixtures did not show phase separation in molten, during crystallization and after solidification. The spherulite radial growth rate of PP decreased and was dependent on the temperature and composition. The results indicated that the system is an immiscible blend with at least three phases: a fine dispersion of the oligopinene in the amorphous PP, some boundary solubility of PP in oligopinene and a crystalline PP.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 10/07/20 alle ore 12:29:04