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Titolo:
In-situ reinforcement of PBT/ABS blends with liquid crystalline polymer
Autore:
Tjong, SC; Jiang, W;
Indirizzi:
City Univ Hong Kong, Dept Phys & Mat Sci, Kowloon, Hong Kong, Peoples R China City Univ Hong Kong Kowloon Hong Kong Peoples R China g, Peoples R China
Titolo Testata:
POLYMER COMPOSITES
fascicolo: 6, volume: 21, anno: 2000,
pagine: 941 - 952
SICI:
0272-8397(200012)21:6<941:IROPBW>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Soggetto:
MECHANICAL-PROPERTIES; POLY(BUTYLENE TEREPHTHALATE); THERMOPLASTIC COMPOSITES; TOUGHENED THERMOPLASTICS; TERNARY BLENDS; COMPATIBILIZATION; MORPHOLOGY; POLY(ETHYLENE-TEREPHTHALATE); POLYPROPYLENE; COPOLYMERS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
44
Recensione:
Indirizzi per estratti:
Indirizzo: Tjong, SC City Univ Hong Kong, Dept Phys & Mat Sci, Tat Chee Ave, Kowloon,Hong Kong, Peoples R China City Univ Hong Kong Tat Chee Ave Kowloon Hong Kong Peoples R China
Citazione:
S.C. Tjong e W. Jiang, "In-situ reinforcement of PBT/ABS blends with liquid crystalline polymer", POLYM COMP, 21(6), 2000, pp. 941-952

Abstract

Ternary in-situ poly(butylene terephthalate) (PBT) /poly(acrylonitrile-butadiene-styrene)(ABS)/liquid crystalline polymer(LCP) blends were prepared by injection molding. The LCP used was a versatile Vectra A950. and the matrix material was PBT/ABS 60/40 by weight. Maleic anhydride (MA) copolymer and solid epoxy resin (bisphenol type-A) were used as compatibilizers for these blends. The tensile, dynamic mechanical, impact, morphology and thermal properties of the blends were studied. Tensile tests showed that the tensile strength of PBT/ABS/LCP blend in the longitudinal direction increased markedly with increasing LCP content. However, it decreased sharply with increasing LCF content up to 5 wt%: thereafter it decreased slowly with increasing LCP content in the transverse direction. The modulus of this blend in the longitudinal direction appeared to increase considerably with increasing LCP content, whereas the incorporation of LCP into PBT/ABS blends had little effect on the modulus in the transverse direction. The impact tests revealed that the Izod impact strength of the blends in longitudinal direction decreased with increasing LCP content up to 10 wt%: thereafter it increased slowly with increasing LCP. Dynamic mechanical analyses (DMA) and thermogravimetric measurements showed that the heat resistance and heat stability ofthe blends tended to increase with increasing LCP content. SEM observation, DMA, and tensile measurement indicated that the additions of epoxy and MAcopolymer to PBT/ABS matric appeared to enhance the compatibility between PBT/ABS and LCP.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/01/20 alle ore 00:34:23