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Titolo:
The effect of anhydride modification of sago starch on the tensile and water absorption properties of sago-filled linear low-density polyethylene (LLDPE)
Autore:
Khalil, HPSA; Chow, WC; Rozman, HD; Ismail, H; Ahmad, MN; Kumar, RN;
Indirizzi:
Univ Sains Malaysia, Sch Ind Technol, P Pinang 11800, Malaysia Univ Sains Malaysia P Pinang Malaysia 11800 ol, P Pinang 11800, Malaysia Univ Sains Malaysia, Sch Chem Sci, P Pinang 11800, Malaysia Univ Sains Malaysia P Pinang Malaysia 11800 ci, P Pinang 11800, Malaysia
Titolo Testata:
POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING
fascicolo: 3, volume: 40, anno: 2001,
pagine: 249 - 263
SICI:
0360-2559(2001)40:3<249:TEOAMO>2.0.ZU;2-C
Fonte:
ISI
Lingua:
ENG
Soggetto:
MECHANICAL-PROPERTIES; SYNTHETIC-POLYMERS; GRANULAR STARCH; BLENDS; COMPOSITES;
Keywords:
sago-starch; anhydride modification; low linear density polyethylene; starch-composites; tensile properties; water absorption;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
22
Recensione:
Indirizzi per estratti:
Indirizzo: Khalil, HPSA Univ Sains Malaysia, Sch Ind Technol, P Pinang 11800, Malaysia Univ Sains Malaysia P Pinang Malaysia 11800 11800, Malaysia
Citazione:
H.P.S.A. Khalil et al., "The effect of anhydride modification of sago starch on the tensile and water absorption properties of sago-filled linear low-density polyethylene (LLDPE)", POLYM-PLAST, 40(3), 2001, pp. 249-263

Abstract

Sage starch was chemically modified through esterification using 2-dodecen-1-yl succinic anhydride (DSA) and propionic anhydride (PA) and three different solvents: [N,N dimethylformamide (DMF), triethylamine (TEA), and toluene (TOU)]. The effect of reaction times and temperatures on the modification was investigated. Evidence of anhydride modification was established by the weight percent gain (WPG) and was further confirmed by FTIR. The DSA-DMFand PA-DMF system, when subjected to the reaction condition of 120 degreesC for 5 h, resulted in the highest WPG. Starch modified with 2-dodecen-1-ylsuccinic amhydride (MS) and propionic anhydride (MS2) was employed in preparation of composites. Samples of composites containing blends of MS/LLDPE and MS2/LLDPE with four different loadings of fillers (10, 25, 40 and 50% based on composite weight) were prepared. With unmodified ST/LLDPE, as the starch content increased, tensile modulus and water absorption increased - but tensile strength and elongation at break showed the opposite effect. With modification, the MS/LLDPE and MS2/LLDPE blends showed improved mechanical and water absorption properties as compared to ST/LLDPE.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/09/20 alle ore 00:30:07