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首页> 外文期刊>Journal of Polymers and the Environment >Effect of Glycerol on the Physical Properties of Carboxylated Styrene-Butadiene Rubber/Cassava Starch Blend Films
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Effect of Glycerol on the Physical Properties of Carboxylated Styrene-Butadiene Rubber/Cassava Starch Blend Films

机译：甘油对羧化苯乙烯-丁二烯橡胶/木薯淀粉共混膜物理性能的影响

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摘要

Many polymers have been used to develop biodegradable films but starch is an attractive material for this purpose because it is an abundant renewable and low cost material. In this study, the effect of glycerol (GE) as a plasticizer on the physical properties of carboxylated styrene-butadiene rubber/cassava starch blend films was investigated. The results show that the addition of GE reduced the brittleness of the films and promoted their flexibility. The films also exhibited higher water absorption ability, higher moisture contents, and better elongation at break with increasing concentrations of GE because the GE reduced the interaction strength between the polymer chains, leading to improved mobility. Furthermore, films containing GE easily hold water in their matrix because the active hydroxyl groups in the GE have a strong affinity with water molecules. This study demonstrated that a significant concentration of GE improved the films' properties and these inexpensive biodegradable films have promising applications as alternative packaging materials.
机译：许多聚合物已被用于开发可生物降解的薄膜，但是淀粉是用于此目的的有吸引力的材料，因为它是丰富的可再生且低成本的材料。在这项研究中，研究了甘油（GE）作为增塑剂对羧化苯乙烯-丁二烯橡胶/木薯淀粉共混物膜物理性能的影响。结果表明，GE的加入降低了薄膜的脆性并提高了其柔韧性。随着GE浓度的增加，由于GE降低了聚合物链之间的相互作用强度，从而提高了迁移率，因此该薄膜还表现出更高的吸水能力，更高的水分含量和更好的断裂伸长率。此外，由于GE中的活性羟基与水分子具有很强的亲和力，所以含有GE的膜容易在其基质中保持水。这项研究表明，高浓度的GE改善了薄膜的性能，这些廉价的可生物降解薄膜作为替代包装材料具有广阔的应用前景。

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