Environmentally green film blends: polyvinyl alcohol (PVA)/cellulose acetate (CA)/potato peel starch as an alternative to petroleum plastics

IF 4.8 2区工程技术 Q1 MATERIALS SCIENCE, PAPER & WOOD Cellulose Pub Date : 2024-06-13 DOI:10.1007/s10570-024-05984-9

Rania H. Taha, Tarek H. Taha, Mohamed Elnouby, E. A. El Desouky, Abdulrahman M. Alhudhaibi, Mahmoud Moustafa, Mervat A. Elsherif, Mohamed Yahia, M. A. Abu-Saied

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Abstract

In recent decades, synthetic plastics have posed a significant environmental threat due to their non-biodegradability. Research is being carried out to find alternative biodegradable sources similar to petroleum plastics but with a lower environmental impact than petroleum plastics. Solution casting was utilized to fabricate the blended films of poly(vinyl alcohol) (PVA)/cellulose acetate(CA)/starch with varying ratios with subsequent testing of their biodegradability using amylase and cellulase enzymes. Before and after enzymatic biodegradability testing, SEM, FTIR, tensile strength, elongation percentage, and swelling of (PVA/CA):(Starch) blended films were investigated. The optimized mechanical properties tensile strength appear at the ratio of (PVA/CA):(Starch) 1:1 was 37.17 ± 1.04 MPa. Using both amylase and cellulase enzymes at the same blend of the polymer best biodegradability that resulted in releasing 131.5 mg/dl of glucose units. The results suggest that (PVA/CA):(Starch) films blended in a ratio of 1:1 can replace petroleum-based plastics and become a green alternative.

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绿色环保薄膜混合物：聚乙烯醇（PVA）/醋酸纤维素（CA）/土豆皮淀粉作为石油塑料的替代品

近几十年来，合成塑料因其不可生物降解性而对环境造成了严重威胁。目前正在开展研究，以寻找与石油塑料类似但对环境影响低于石油塑料的可生物降解替代资源。研究人员利用溶液浇注法制造了不同比例的聚乙烯醇（PVA）/醋酸纤维素（CA）/淀粉混合薄膜，随后使用淀粉酶和纤维素酶对其生物降解性进行了测试。在进行酶促生物降解性测试前后，对（PVA/CA）：（淀粉）混合薄膜的扫描电镜、傅立叶变换红外光谱、拉伸强度、伸长率和膨胀性进行了研究。拉伸强度在（PVA/CA）:（淀粉）1:1 的比例下为 37.17 ± 1.04 兆帕。在相同的聚合物混合物中同时使用淀粉酶和纤维素酶，可获得最佳的生物降解性，释放出 131.5 mg/dl 的葡萄糖单位。结果表明，以 1:1 的比例混合的（PVA/CA）：（淀粉）薄膜可以取代石油基塑料，成为一种绿色替代品。

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来源期刊

Cellulose 工程技术-材料科学：纺织

CiteScore

10.10

自引率

10.50%

发文量

580

审稿时长

3-8 weeks

期刊介绍： Cellulose is an international journal devoted to the dissemination of research and scientific and technological progress in the field of cellulose and related naturally occurring polymers. The journal is concerned with the pure and applied science of cellulose and related materials, and also with the development of relevant new technologies. This includes the chemistry, biochemistry, physics and materials science of cellulose and its sources, including wood and other biomass resources, and their derivatives. Coverage extends to the conversion of these polymers and resources into manufactured goods, such as pulp, paper, textiles, and manufactured as well natural fibers, and to the chemistry of materials used in their processing. Cellulose publishes review articles, research papers, and technical notes.