Thermoplastic mung bean starch/natural rubber/sericin blends for improved oil resistance
| Autor: | Charin Techapun, Sutee Wangtueai, Nattagarn Homsaard, Noppol Leksawasdi, Thosak Kittikorn, Toshiaki Ougizawa, Warintorn Ruksiriwanich, Suphat Phongthai, Sarana Rose Sommano, Araya Kodsangma, Pornchai Rachtanapun, Joe M. Regenstein, Phisit Seesuriyachan, Pensak Jantrawut, Sudarut Nadon, Yuthana Phimolsiripol, Thanongsak Chaiyaso, Kittisak Jantanasakulwong |
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| Rok vydání: | 2021 |
| Předmět: |
Thermoplastic
Biochemical Phenomena Starch Biochemistry Sericin chemistry.chemical_compound Natural rubber Structural Biology Tensile Strength Ultimate tensile strength medicine Thermoplastic elastomer Molecular Biology chemistry.chemical_classification Chemistry Temperature General Medicine Epoxy Elastomers Chemical engineering visual_art visual_art.visual_art_medium Epoxy Compounds Rubber Swelling medicine.symptom Oils Plastics |
| Zdroj: | International Journal of Biological Macromolecules. 188:283-289 |
| ISSN: | 0141-8130 |
| DOI: | 10.1016/j.ijbiomac.2021.07.187 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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