生物可降解塑料PGA

Search documents
A股收评 | 股指齐调整!大消费逆势活跃
智通财经网· 2025-05-15 07:19
Market Overview - The market experienced a weak fluctuation, with all three major indices closing down. The consumer sector showed resilience, while over 3,800 stocks declined [1][3] - Goldman Sachs raised the 12-month targets for the MSCI China Index and the CSI 300 Index to 84 points and 4,600 points, respectively, indicating potential upside of 11% and 17%. They maintain an overweight rating on Chinese stocks and suggest focusing on multiple themes for excess returns [1] Sector Performance - New hotspots emerged in the market, particularly in the ergot sulfur concept, with Chuaning Biological hitting a 20% limit up. Other sectors such as beauty care and medical aesthetics also saw significant gains [1] - The food and beverage sector rebounded in the afternoon, with several stocks, including Xiwang Food, hitting the limit up. The shipping and port sector continued its upward trend, with Nanjing Port achieving three consecutive limit ups [1] - The textile and apparel sector showed recovery, with Huafang Co. achieving six limit ups in eight days. Other sectors like coal, chemicals, synthetic biology, rare earths, and ST stocks also performed well [1] Individual Stock Movements - A total of 1,407 stocks rose, while 3,856 stocks fell, with 149 stocks remaining flat. There were 78 stocks hitting the limit up and 12 stocks hitting the limit down [3] - The Shanghai Composite Index fell by 0.68% to 3,380.82 points, with a trading volume of 461.3 billion yuan. The Shenzhen Component Index dropped by 1.62% to 10,186.45 points, with a trading volume of 688.7 billion yuan. The ChiNext Index decreased by 1.91% to 2,043.25 points [3] Fund Flow - Main funds focused on sectors such as chemical pharmaceuticals, small metals, and passenger vehicles, with notable net inflows into stocks like BYD, Chuaning Biological, and Shenghe Resources [4] Regulatory Developments - The China Securities Regulatory Commission (CSRC) is expediting the introduction of a comprehensive policy package to deepen reforms in the Sci-Tech Innovation Board and the ChiNext, aiming to enhance the inclusiveness and adaptability of the system [5] Industry Insights - The anti-aging industry is divided into medical and non-medical tracks, with the former focusing on basic medical research and the latter encompassing various fields such as sociology and artificial intelligence [2] - The China Academy of Sciences has made breakthroughs in the electro-catalytic reforming of waste plastic PET to produce biodegradable plastic PGA, with projected market demand reaching millions of tons [6] Economic Outlook - Analysts from Minsheng Securities suggest that China's asset resilience may be higher than that of overseas markets, with a focus on consumption sectors and undervalued financial stocks [9] - Huazhong Securities indicates that the market will continue to experience fluctuations until significant improvements in the macroeconomic fundamentals are observed [10]
中科院理化所:电催化重整废弃塑料PET制备生物可降解塑料PGA研究获新突破
news flash· 2025-05-15 02:55
中国科学院理化技术研究所官网消息,生物可降解塑料的大规模推广应用是解决塑料污染问题的关键突 破口。据测算,我国PGA市场需求未来将达到百万吨级规模。然而,PGA的主流制备工艺面临重大挑 战:其单体原料乙醇酸的传统合成路线依赖高毒性前驱体,存在安全风险且难以规模化生产。针对这一 重大需求,中国科学院理化技术研究所陈勇研究员团队发展了新的电合成策略,利用废弃PET塑料作为 起始原料,成功实现了乙醇酸的克级制备。为推进该技术产业化,实现从废弃塑料PET到可降解塑料 PGA的全流程转化,团队系统分析了电催化重整PET制备PGA过程中的两大核心难题:乙二醇制备乙醇 酸的时空产率低;乙醇酸晶体的分离提纯成本高。经济技术分析结果表明,基于电催化重整路线制备的 PGA成本约为1240.12美元/吨,已接近通用聚烯烃塑料的成本区间,为该技术产业化奠定了坚实基础。 (人民财讯) ...