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Updated: Jan 5, 2026

Molecular Entanglement and Electrospinnability of Biopolymers
Published on: September 3, 2014
Effect of Dip Coating Polymer Solutions on Properties of Thermoplastic Cassava Starch
Kittisak Jantanasakulwong1,2, Nattagarn Homsaard3, Phanurot Phengchan4
1School of Agro-Industry, Faculty of Agro-Industry, Chiang Mai University, Mae-Hea, Mueang, Chiang Mai 50100, Thailand. jantanasakulwong.k@gmail.com.
Abstract:
Thermoplastic starch (TPS) was prepared by melt-mixing cassava starch with glycerol. Polyethylene (PE), polyethylene-grafted-maleic anhydride (PE-MAH) and poly(lactic acid) (PLA) solutions at 2% (w/v) were used to coat TPS using the dip coating process. The tensile strength of TPS increased with the dip coating solution technique, especially for PLA coating. Swelling index, water-soluble matter and water droplet contact angle confirmed the water resistant improvement of TPS by PE-MAH and the PLA dip coating solution. Plasticizer bleeding was found in uncoated TPS after storage, but not in the coated TPS. Coating TPS with PE-MAH and PLA improved the tensile properties, water resistance and conquered plasticizer bleeding problems in TPS.
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