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首页> 外文期刊>Polymers for advanced technologies >Preparation and characterization of corn starch/soy protein biocomposite film reinforced with graphene and graphene oxide nanoplatelets
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Preparation and characterization of corn starch/soy protein biocomposite film reinforced with graphene and graphene oxide nanoplatelets

机译：用石墨烯和石墨烯纳米片增强玉米淀粉/大豆蛋白生物复合膜的制备与表征

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> Corn starch (CS) and soy protein isolate (SPI), as inexpensive, abundant, and biodegradable materials, can chemically interact well with each other to produce biofilms. However, to overcome some of their physical and mechanical limitations, it is preferred to use their composite form, employing reinforcing materials. In this study, initially, graphene (G) and graphene oxide (GO) were synthesized by a green method. Then, to enhance the polymer blend final properties, the effects of adding G and GO in the range of 0.5 to 2?wt% on physical and mechanical properties of starch/protein blend were investigated. The results showed that the presence of 0.5‐wt% G and 2‐wt% GO significantly increased the modulus of starch/protein film from 252 to 578 and 449?MPa, respectively. In addition, the thermal stability of CS/SPI/GO (2?wt%) composite film was 50°C to 60°C more than that of the pure starch/protein film. On the other hand, G‐reinforced composite films tended to decline water diffusion compared with the pure polymer film. In addition, the composite film with 2‐wt% GO content had the lowest oxygen permeation rate (3.48?cm 3 ?μm/m 2 d?kpa) among the other composite films.
机译： > 玉米淀粉（CS）和大豆蛋白分离物（SPI），如廉价，丰富和可生物降解的材料，可以彼此化学相互作用以产生生物膜。然而，为了克服它们的一些物理和机械限制，优选使用它们的复合形式，采用加强材料。在该研究中，最初，通过绿色方法合成石墨烯（G）和氧化铟烯（GO）。然后，研究了聚合物共混物最终性质，研究了加入G的效果，并在0.5至2℃的范围内进行淀粉/蛋白质共混物的物理和力学性能。结果表明，0.5wt％g和2wt％的存在显着增加了252至578和449μmβMPa的淀粉/蛋白质膜的模量。此外，Cs / SPI / GO（2·wt％）复合膜的热稳定性比纯淀粉/蛋白质膜的热稳定性大于50℃至60℃。另一方面，与纯聚合物膜相比，G型复合膜倾向于下降水扩散。此外，具有2wt％GO含量的复合膜具有最低氧气渗透率（3.48Ωcm 3 ？μm/ m 2 D？KPA）在其他复合膜中。

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