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首页> 外文期刊>Journal of Polymers and the Environment >Evaluation of Composition on Processability and Water Absorption of Wheat Gluten-Based Bioplastics
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Evaluation of Composition on Processability and Water Absorption of Wheat Gluten-Based Bioplastics

机译：基于小麦麸质的生物塑料的可加工性和吸水性的组成评价

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摘要

The nature of the plasticizer fraction within a bioplastic matrix is of extreme importance. Thus, brittleness has sometimes been observed when water has been used. The goal of the present manuscript has been to assess the effects of the addition of sucrose and trehalose in gluten-based bioplastics either in presence or absence of water. It was found that the role of the disaccharides in the samples studied depended on whether water was present or not in the formulation. Therefore, when water was included in the formulation together with glycerol, sugars were solubilized within the aqueous fraction, and then played a plasticizer role in the bioplastics. In that case, lower torque and temperatures during mixing, as well as lower viscoelastic properties and greater water absorption ability were generally observed in the presence of sugars. On the other hand, when no water was added, sugars acted as fillers, especially sucrose, which reinforced the blends as denoted by lower loss tangents and higher viscoelastic moduli. In this case, a microporous structure is formed after water immersion, observing smaller pore sizes in the positions previously taken by those sugars. The present manuscript highlights the importance of the procedure followed when introducing sugars in the formulation on the eventual properties of the bioplastics.
机译：生物塑料基质中增塑剂级分的性质具有极度重要性。因此，当使用水时有时会观察到脆性。本手稿的目的是评估在存在或不存在水的基于麸质的生物塑料中添加蔗糖和海藻糖的影响。发现二糖在研究中的样品中的作用依赖于水是否存在或不在配方中。因此，当水与甘油一起包含在制剂中时，糖溶解在含水部分内，然后在生物塑料塑料中发挥增塑剂作用。在这种情况下，在糖的存在下，通常观察到混合过程中的较低扭矩和温度以及更低的粘弹性和更大的吸水能力。另一方面，当没有添加水时，糖作为填料，特别是蔗糖，其加强了由低损损失切线和更高的粘弹性的模拟的共混物。在这种情况下，在水浸渍后形成微孔结构，观察由那些糖预先拍摄的位置中的较小孔径。目前的手稿突出了在制剂中引入了生物塑料的最终属性时糖的过程的重要性。

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