| Literature DB >> 34343586 |
Pornchai Rachtanapun1, Araya Kodsangma2, Nattagarn Homsaard2, Sudarut Nadon2, Pensak Jantrawut3, Warintorn Ruksiriwanich3, Phisit Seesuriyachan1, Noppol Leksawasdi1, Yuthana Phimolsiripol1, Thanongsak Chaiyaso4, Suphat Phongthai4, Sarana Rose Sommano5, Charin Techapun2, Toshiaki Ougizawa6, Thosak Kittikorn7, Sutee Wangtueai8, Joe M Regenstein9, Kittisak Jantanasakulwong10.
Abstract
Oil resistant thermoplastic elastomers (TPE) were prepared using mung bean thermoplastic starch (MTPS) blending with rubbers and sericin. Sericin was incorporated into MTPS as a compatibilizer. MTPS with sericin (MTPSS) was blended with natural rubber (NR) and epoxidized NR (ENR). Sericin at 5% improved the tensile strength (10 MPa), elastic recovery (52%) and morphology of the MTPSS/ENR blend. The mechanical properties, elastic recovery and morphology of the MTPSS5/NR blend were improved by the addition of ENR. The MTPSS/ENR showed palm (28%) and motor oils (8%) swelling resistance because of the hydrophilicity of MTPS and high polarity of ENR. The MTPSS/ENR/NR showed gasoline swelling resistance (104%) because of the hydrophilicity of MTPS and low polarity of NR. FTIR confirmed a reaction between the -NH groups of sericin and the epoxy groups of ENR. This reaction improved the compatibility, mechanical properties, elastic recovery, morphology and oils swelling resistance of the blends.Entities:
Keywords: Epoxidized natural rubber; Mung bean; Oil resistance; Sericin; Thermoplastic elastomer; Thermoplastic starch; Vigna radiata
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Year: 2021 PMID： 34343586 DOI： 10.1016/j.ijbiomac.2021.07.187
Source DB: PubMed Journal: Int J Biol Macromol ISSN： 0141-8130 Impact factor: 6.953