The Effect of Drying Temperature Variation on the Production of Porang Starch Bioplastics with Sorbitol Plasticizer on Mechanical and Thermal Properties

Key Engineering Materials Pub Date : 2024-03-27 DOI:10.4028/p-d9dpe4

A. Maghfirah, Sudiati Sudiati, M. Z. Sofyan, Nurul Adila Damanik, Yoseva Hia

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Abstract

The objective of this work is in order to investigate how the mechanical properties of bioplastics synthesized from chitosan and porang starch with sorbitol plasticizer are affected by varying drying temperatures. According to the study's findings, changes in drying temperatures significantly affect the mechanical properties of these bioplastics. This research provides valuable insights for developing environmentally friendly packaging alternatives of various drying temperatures starting from 50°C, 55°C, 60°C, 65°C, 70°C. The results of mechanical characterization show that at 50°C with 40% sorbitol, the plastic possesses a 17.32% elongation and 2.66 MPa tensile strength. At 50°C with 60% sorbitol, the tensile strength reaches 1.34 MPa and elongation is 34.43%. Meanwhile, at 65°C with 80% sorbitol, the tensile strength is 1.59 MPa and elongation reaches 37.80%. The plastic is also thermally tested using TGA-DTA, morphologically tested using SEM and its functional divisions are analyzed using FTIR to obtain further data about its properties.

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干燥温度变化对使用山梨醇增塑剂生产波朗淀粉生物塑料的机械和热性能的影响

这项工作的目的是研究壳聚糖和茯苓淀粉与山梨醇增塑剂合成的生物塑料的机械性能如何受到不同干燥温度的影响。研究结果表明，干燥温度的变化会显著影响这些生物塑料的机械性能。这项研究为开发不同干燥温度（从 50°C、55°C、60°C、65°C 到 70°C）的环保型包装替代品提供了宝贵的见解。机械表征结果表明，在 50°C 温度下，如果山梨醇含量为 40%，塑料的伸长率为 17.32%，拉伸强度为 2.66 兆帕。在 50°C 时，山梨醇含量为 60%，拉伸强度达到 1.34 兆帕，伸长率为 34.43%。同时，在 65°C 时，山梨醇含量为 80%，拉伸强度为 1.59 兆帕，伸长率为 37.80%。此外，还使用 TGA-DTA 对该塑料进行了热测试，使用 SEM 对其进行了形貌测试，并使用傅立叶变换红外光谱对其功能分区进行了分析，以获得有关其性能的更多数据。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Key Engineering Materials

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