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首页> 外文期刊>African Journal of Biotechnology >Synthesis of copolymer from lactic acid-polyethylene terephthalate (LA-PET) copolymerization
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Synthesis of copolymer from lactic acid-polyethylene terephthalate (LA-PET) copolymerization

机译：乳酸-聚对苯二甲酸乙二酯（LA-PET）共聚合成共聚物

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Bio-plastic has been a need of the hour for the past few decades and the usage of lactic acid (LA) in the production of bio plastic opens a new window to the field. Polyethylene terephthalate (PET) thermoplastic polyester with excellent tensile and impact strength, chemical resistance, clarity, process ability, and transparency has become a bane to the society. The co polymerization increases the mechanical strength of LA. In this study, the production and optimization of the copolymer of LA –PET was done. The blend of sugarcane bagasse and corn stover was used for the production of LA by incubating with Lactobacillus sp. for 24 h. Lactobacillus sp. is a potent producer of lactic acid and crude curd was used as the source. The optimization in lignin breakdown by 10% NH4OH and 2% NaOH and acid hydrolysis by 10% H2SO4 of the blend was done. The process parameters in the copolymerization LA-PET using p-toluene sulfonic acid, ethylene glycol and stannous chloride were also analyzed. The products formed were confirmed by the FTIR analysis at various transmittance peaks at 1681, 3008 and 3610 cm-1. The process of production of the copolymer proves to be a green technology by decreasing the PET contamination of the environment and also helping in the production of bio-degradable plastics in the run.
机译：在过去的几十年中，生物塑料一直是一个小时的需求，而在生物塑料生产中使用乳酸（LA）则为该领域打开了新的窗口。聚对苯二甲酸乙二醇酯（PET）热塑性聚酯具有出色的拉伸强度和冲击强度，耐化学性，透明度，加工能力和透明度，已成为社会的祸根。共聚合提高了LA的机械强度。在这项研究中，完成了LA-PET共聚物的生产和优化。甘蔗渣和玉米秸秆的混合物通过与乳酸杆菌属菌种一起培养，用于生产LA。持续24小时。乳杆菌是乳酸的有效生产者，并且使用了粗凝乳作为来源。进行了10％NH4OH和2％NaOH降解木质素的优化，以及混合物中10％H2SO4酸水解的优化。还分析了使用对甲苯磺酸，乙二醇和氯化亚锡共聚LA-PET的工艺参数。通过FTIR分析在1681、3008和3610cm-1处的各种透射率峰处确认形成的产物。通过减少环境中的PET污染并在运行中帮助生产可生物降解的塑料，证明了该共聚物的生产工艺是一种绿色技术。

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