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Property improvement of thermoplastic mung bean starch using cotton fiber and low‐density polyethylene
Author(s) -
Prachayawarakorn Jutarat,
Hommanee Luxsana,
Phosee Darin,
Chairapaksatien Parichat
Publication year - 2010
Publication title -
starch ‐ stärke
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.62
H-Index - 82
eISSN - 1521-379X
pISSN - 0038-9056
DOI - 10.1002/star.201000002
Subject(s) - low density polyethylene , absorption of water , materials science , starch , thermoplastic , compounding , composite material , compression molding , polyethylene , fiber , molding (decorative) , young's modulus , natural fiber , food science , chemistry , mold
Due to high water uptake and low mechanical properties of biodegradable thermoplastic starch, thermoplastic starch prepared from mung bean starch (TPMBS) was modified by the incorporation of cotton fiber and low‐density polyethylene (LDPE). The effect of different ratios of cotton fiber/LDPE, i.e ., 10:0, 7:3, 5:5, 3:7, and 0:10, on water uptake, mechanical, thermal, and biodegradable properties of TPMBS was examined. Different TPMBS samples were prepared using internal mixer for compounding and compression molding machine for shaping samples. It was found that the TPMBS incorporated with 10:0, 7:3, and 3:7 cotton fiber/LDPE showed an increase in the stress at maximum load and Young's modulus. Moreover, the water absorption of all of the modified TPMBS samples tended to decrease as compared to the pure TPMBS. Morphological, thermal, and biodegradable properties of different TPMBS samples were also investigated.