Group 1 - The event commemorated the 80th anniversary of the victory in the Chinese People's Anti-Japanese War and the World Anti-Fascist War, featuring the release of 80,000 balloons and doves [1] - The balloons used in the event are made from fully biodegradable natural materials, differing significantly from conventional balloons [1] - The materials used include natural latex, plant starch, and polylactic acid (PLA) derived from fermented plants like corn and sugarcane, which are environmentally friendly and harmless [1] Group 2 - The development team faced challenges in maintaining the required gas impermeability, tensile strength, and elongation while using new biodegradable materials [2] - After extensive testing, the team successfully achieved a high degradation rate while ensuring excellent physical properties of the balloons [2] - The balloons can start to decompose within a month under normal sunlight conditions, with a degradation rate of 60%-70% within 180 days, and complete degradation within 1 to 1.5 years, resulting in water, carbon dioxide, and organic matter [2]

Group 1 - The event commemorating the 80th anniversary of the victory in the Chinese People's War of Resistance against Japanese Aggression and the World Anti-Fascist War featured the release of 80,000 balloons, which raised concerns about their environmental impact [1][3] - The balloons used in the event are made from fully biodegradable materials, including natural latex, plant starch, and polylactic acid (PLA) derived from fermented plants like corn and sugarcane, distinguishing them from conventional balloons [1][2] - The special natural latex material used for the balloons is non-toxic, harmless, and has sustainable and degradable properties, marking a significant advancement in balloon manufacturing [1][2] Group 2 - The research team faced challenges in maintaining the required airtightness, tensile strength, and elongation of the balloons while using new biodegradable materials, which initially posed a conflict with the materials' degradability [2] - The balloons have a degradation rate of 60%-70% within 180 days under normal sunlight conditions, and they can completely decompose within 1 to 1.5 years, breaking down into water, carbon dioxide, and organic matter without causing permanent pollution [2] - Scientists are also exploring the development of bio-based composite materials that do not use aluminum foil, aiming to achieve gas barrier properties similar to natural latex [4]

项目进展 | 湖 北 微琪 【SynBioCon】 获 悉， 近日，关于 湖北微琪 年产3万吨合成生物PHA可降解材料绿色智能制造项目 （一期）竣工验收公示。 年产3万吨合成生物PHA可降解材料绿色智能制造项目，其产品为生物基可降解材料——聚羟基脂肪 酸酯类聚合物（即PHA），项目分两期建设， 一期建设年产10000吨PHA生产装置，二期建设年产 20000吨PHA生产装置。 建设性质：新建 一期项目实际总投资：34000万元 建设内容：项目位于宜昌市猇亭区安琪生物科技园，属于新建项目，占地约200.86亩，总建筑面积约 34516平方米，环评规划主要建设发酵及提取车间、干燥车间、原材料及成品仓库等，配套建设公用 工程及研发办公综合体。 项目于2023年7月开始建设，目前项目已建成一期建设年产10000吨PHA生产装置，配套建设干燥车 间、发酵及提取车间等生产车间各1栋，内设10000t/aPHA生产装置1套；建设供电、给排水、消防等 公用工程，储罐区及危化品库等储运工程及环保工程。 一期项目生产的产品包括 PHB 和 P34HB 两个小类，且每期产品中聚-3.羟基丁酸酯(PHB)和聚-3-羟 基丁酸-4-羟 ...