Effect of Unmodified and Modified Sago Starch on Properties of (Sago Starch)/Silica/PVA Plastic Films

被引：13

作者：

Ismail, H. ^{[1
]}

Zaaba, N. F. ^{[1
]}

机构：

[1] Univ Sains Malaysia, Sch Mat & Mineral Resources Engn, Nibong Tebal 14300, Penang, Malaysia

来源：

JOURNAL OF VINYL & ADDITIVE TECHNOLOGY | 2014年 / 20卷 / 03期

关键词：

BLEND FILMS; BIODEGRADABILITY; GLYCEROL; ALCOHOL);

D O I：

10.1002/vnl.21344

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Sago starch was modified by crosslinking with sodium trimetaphosphate (STMP). Different formulations of films were prepared by a blending process and a casting method. A suitable plasticizer was added to the blend. Mechanical properties of plastic films with unmodified and modified sago starch were compared. From the results obtained, films with modified sago starch had better compatibility and interaction with polyvinyl alcohol than unmodified sago starch films. Thus, the tensile strength of modified films was higher, but lower in elongation at break than unmodified sago starch plastic films. Films with modified sago starch also showed lower water absorption, water vapor transmission, and degradation than unmodified sago starch plastic films. Chosen were 1 wt% and 2 wt% of silica as the optimum formulation that produced the best tensile properties for modified and unmodified sago starch plastic films. (C) 2014 Society of Plastics Engineers

引用

页码：185 / 192

页数：8

共 27 条

[1]

[Anonymous], 1994, Food Packaging and Preservation

[2] Enzymatic degradation of starch-based thermoplastic compounds used in protheses:: identification of the degradation products in solution [J].

Araújo, MA ;

Cunha, AM ;

Mota, M .

BIOMATERIALS, 2004, 25 (13) :2687-2693

[3]

BeMiller JN, 2009, FOOD SCI TECHNOL-INT, pXVII, DOI 10.1016/B978-0-12-746275-2.00023-9

[4]

Benyuan H., 2003, GANSU SCI TECHNOL CH, V20, P81

[5] Degradation studies and moisture uptake of sago-starch-filled linear low-density polyethylene composites [J].

Danjaji, ID ;

Nawang, R ;

Ishiaku, US ;

Ismail, H ;

Ishak, ZAMM .

POLYMER TESTING, 2002, 21 (01) :75-81

[6] γ-Irradiation Effect on the Non-Cross-Linked and Cross-Linked Polyvinyl Alcohol Films [J].

El-Sawy, N. M. ;

El-Arnaouty, M. B. ;

Ghaffar, A. M. Abdel .

POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING, 2010, 49 (02) :169-177

[7] WATER AND GLYCEROL AS PLASTICIZERS AFFECT MECHANICAL AND WATER-VAPOR BARRIER PROPERTIES OF AN EDIBLE WHEAT GLUTEN FILM [J].

GONTARD, N ;

GUILBERT, S ;

CUQ, JL .

JOURNAL OF FOOD SCIENCE, 1993, 58 (01) :206-211

[8] Effect of Additives on Properties of Polyvinyl Alcohol (PVA)/Tapioca Starch Biodegradable Films [J].

Ismail, H. ;

Zaaba, N. F. .

POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING, 2011, 50 (12) :1214-1219

[9]

Jankong S., 2008, JMET MAT MIN, V18, P143

[10] Starch from the sago (Metroxylon sagu) palm tree -: Properties, prospects, and challenges as a new industrial source for food and other uses [J].

Karim, A. A. ;

Tie, A. Pei-Lang ;

Manan, D. M. A. ;

Zaidul, I. S. M. .

COMPREHENSIVE REVIEWS IN FOOD SCIENCE AND FOOD SAFETY, 2008, 7 (03) :215-228

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