PET塑料

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塑料瓶竟“变身”为镇痛良药
Huan Qiu Wang Zi Xun· 2025-06-24 02:04
来源:科技日报 科技日报记者 张梦然 关键来了!有一种叫做洛森重排的化学反应,居然能在活体细胞中发生。而且它还能被大肠杆菌体内的 磷酸盐催化完成。这个反应能生成一类重要的含氮化合物,而这种化合物,正是合成对乙酰氨基酚的关 键原料。 让人惊喜的是,经过一系列生物代谢过程,这些原本来自塑料的分子,不仅没有被细胞"嫌弃",反而被 成功地"修复"并转化成了药物前体。最终,在实验中对乙酰氨基酚的产率高达92%。 这项研究的意义远远不止于"塑料变药"本身。它是首次成功利用废弃塑料作为原料,在微生物体内生产 出具有药用价值的小分子。这为未来的资源回收和绿色制药打开了全新的大门。 科学家还计划探索其他类型的塑料是否也能被改造,是否还有别的细菌也具备这样的能力,以及能否用 类似的方法制造出更多种类的药物。 也许有一天,塑料垃圾不再需要填埋,建立的一个个"生物厂",用微生物的力量就能把垃圾变成能源、 药品,甚至食品。而废弃的塑料瓶将不是垃圾,而是一颗等待被唤醒的原料"种子"。 全球每年生产数亿吨塑料,其中很多最终变成了污染环境的"毒瘤"。如何将塑料垃圾变废为宝是科学家 长期研究的重点课题。现在,实验室里终于上演了一场"变身记": ...
英科再生2024年营收、净利润双创新高 海外基地赋能供应链多元化
Zheng Quan Ri Bao Wang· 2025-04-28 03:11
Core Insights - The company, Yingke Recycling Resources Co., Ltd., reported record high revenues and net profits for 2024, with operating income reaching 2.924 billion yuan, a year-on-year increase of 19.09%, and net profit attributable to shareholders at 307 million yuan, up 57.07% [1] - In Q1 2025, the company achieved operating income of 793 million yuan, a 25.19% increase year-on-year, while net profit attributable to shareholders was 72.32 million yuan, showing a slight increase of 0.02% [1] - The company attributes its growth to effective market capture, new product development, and extensive participation in 41 trade shows, enhancing brand visibility and marketing channels [1] Company Operations - Yingke Recycling specializes in high-tech manufacturing for resource recycling, recovering various types of waste plastics from 100 countries and producing high-quality r-PS, r-PE, and r-PET plastic particles [2] - The company has diversified its product offerings from picture frames to decorative building materials, providing a one-stop solution for downstream retail stores [2] - Since 2017, the company has established overseas manufacturing bases, including a factory in Selangor, Malaysia, and a second factory in Quang Ninh, Vietnam, which has reached full production capacity in 2024, contributing significantly to revenue growth [2] Market Positioning - The company is well-positioned to benefit from increasing environmental awareness and the promotion of sustainable practices in the plastic industry, which presents opportunities for the recycling sector [1] - In response to rising trade uncertainties, the company is enhancing its supply chain localization and operational flexibility through a forward-looking overseas base strategy, solidifying its market position [2]
ST永悦(603879) - 永悦科技2024年年度主要经营数据公告
2025-04-02 13:01
一、主要产品的产量、销售及收入情况 证券代码:603879 证券简称:ST 永悦 公告编号:2025-007 永悦科技股份有限公司 2024 年年度主要经营数据公告 本公司董事会及全体董事保证本公告内容不存在任何虚假记载、误导性陈述 或者重大遗漏,并对其内容的真实性、准确性和完整性承担个别及连带责任。 根据上海证券交易所《关于做好上市公司 2024 年年度报告披露工作的通知》 和《上海证券交易所上市公司自律监管指引第 3 号--行业信息披露:第十三号— 化工》的要求,永悦科技股份有限公司(以下简称"公司")2024 年年度主要经 营数据披露如下: 三、主要原材料的采购价格变动情况(不含税) | 类别 | 2024年1-12月平均采购 | 2023 年 1-12 月平均采 | 变动幅度 | | --- | --- | --- | --- | | | 单价(元/吨) | 购单价(元/吨) | | | 苯乙烯 | 8,210.89 | 7,464.89 | 9.99% | | PET 塑料片 | 4,540.14 | 4,256.02 | 6.68% | | 顺酐 | 5,945.44 | 6,217.85 | - ...