Dewi Rozanna, Sylvia Novi, Subhan Muhammad, Kusuma Budhi Santri, Ananda Aldila, Riza Medyan, Siregar Januar Parlaungan, Chan Choon Kit, Cionita Tezara, Abdelrahman Elsherif Emad Ahmed
Chemical Engineering Department, Malikussaleh University, Lhokseumawe 24353, Aceh, Indonesia.
Center of Excellence Technology Natural Polymer and Recycle Plastics, Malikussaleh University, Lhokseumawe 24353, Aceh, Indonesia.
Polymers (Basel). 2025 Aug 23;17(17):2281. doi: 10.3390/polym17172281.
Lotus stems contain cellulose, which can be utilized as a base material for producing green products, specifically degradable plastics. This research investigates the effect of polylactic acid (PLA) blends on cellulose degradable plastics from the lotus stem (). The mechanical characteristics are as follows: tensile strength of 0.7703-3.3212 MPa, elongation of 0.58-1.16%, Young's modulus of 78.7894-364.6118 MPa. Compound analysis showed the presence of O-H, C-C, and C=O groups, and the presence of microbial activity in the soil can also lead to the degradation of these groups due to their hydrophilic nature, which allows them to bind water. Thermal analysis within a temperature range of 413.24 °C to 519.80 °C, shows that significant weight loss begins with the formation of crystalline structures. The degradable plastic exhibiting the lowest degree of swelling consists of 1 g of cellulose and 8 g of PLA, resulting in a swelling value of 6.25%. The degradable plastic is anticipated to decompose most rapidly after 52 days, utilizing 2 g of PLA and 7 g of cellulose. This complies with standard requirement, which sets a maximum degradation period of 180 days for polymers.
莲藕茎含有纤维素，可作为生产绿色产品，特别是可降解塑料的基础材料。本研究调查了聚乳酸（PLA）共混物对莲藕茎纤维素可降解塑料的影响。其机械特性如下：拉伸强度为0.7703 - 3.3212兆帕，伸长率为0.58 - 1.16%，杨氏模量为78.7894 - 364.6118兆帕。化合物分析表明存在O - H、C - C和C = O基团，并且由于其亲水性使它们能够结合水，土壤中微生物的活动也会导致这些基团的降解。在413.24℃至519.80℃温度范围内的热分析表明，随着晶体结构的形成开始出现显著的重量损失。溶胀度最低的可降解塑料由1克纤维素和8克PLA组成，溶胀值为6.25%。预计使用2克PLA和7克纤维素的可降解塑料在52天后分解最快。这符合标准要求，该标准规定聚合物的最长降解期为180天。
