高分子材料回收
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中科院宁波材料所刘小青:环氧树脂的化学降解回收——心腹之患与燃眉之急
DT新材料· 2025-12-02 16:05
可化学降解环氧树脂不止能用于以上场景,还包括: PPWR的核心逻辑,其实是 " 把外部成本内部化 ",让包装的环境成本,真正体现在生产和消费环 节。 然而,对于可化学降解环氧树脂如何大规模商用,还面临着许多难题。 废弃环氧树脂的回收设计中如何处理其他废弃物组分?回收的经济性究竟如何?如何降低回收工艺中 的能耗与污染?在实际商业化应用中真实表现如何? 中科院宁波材料所 刘小青 研究员 将出席 12月11-13日 于 宁波 召开的 2025(第三届)高 分子循环再利用大会 ,并在 现场分享题为" 环氧树脂灌封电子电器的高值化学降解回收 "的 报告! 环氧树脂作为重要热固性材料,凭借优异的粘接性、绝缘性、耐化学性和机械强度,广泛应用于汽 车、航空航天、风电及电子等领域。但其固化后无法通过加热或溶剂溶解进行再加工,也难以降解回 收,废弃后通常只能采用填埋、粉碎或化学分解处理,导致资源浪费和环境污染问题。因此,开发高 效可控的环氧树脂降解回收技术,构建资源循环利用体系已成为当前高分子材料领域亟待突破的关键 课题。 中科院宁波材料所的新型热固性树脂团队围绕动态共价键体系可降解环氧树脂存在的服役稳定性不足 与成本过高的行业 ...
官宣启动!12月11-13日 宁波丨2025(第三届)高分子循环再利用大会
DT新材料· 2025-09-23 16:04
Core Insights - The article emphasizes the significance of polymer recycling as a crucial method to alleviate global resource scarcity and environmental pressure, highlighting the establishment of the China Resource Recycling Group as a pivotal development in the industry [3][4]. Event Overview - The 2025 Third Polymer Recycling Conference will be held from December 11-13 in Ningbo, Zhejiang, focusing on policy trends, chemical and physical recycling technologies, and high-value utilization of recycled materials across various sectors [3][4][5]. Highlights of the Conference - Insight into global plastic recycling policies and China's 14th Five-Year Plan for plastic recycling will be shared, exploring new technologies, collaborations, and production capacities [5]. - Advanced recycling technologies for waste polymers will be discussed, including thermal cracking and depolymerization techniques, along with economic and yield analyses [5][7]. - The conference will gather leading enterprises, top universities, and stakeholders from various sectors to foster collaboration [5][7]. Agenda Overview - The conference will include registration and a youth scientist forum on December 11, followed by a macro forum on polymer recycling and specialized sessions on advanced recycling technologies on December 12 [6]. Key Topics - The macro forum will cover advanced recycling technologies, focusing on the conversion of waste polymers into monomers, oligomers, and pyrolysis oil [9]. - Discussions will include the circular utilization of PCR and PIR plastics in automotive, home appliances, and consumer electronics, driven by regulatory pressures [10]. - The conference will address the recycling of PET and soft plastic packaging, emphasizing the importance of scale and efficiency under ESG principles [11]. - Topics will also cover the recycling of waste textile fibers and retired wind turbine blades, focusing on lifecycle approaches and high-value utilization [12]. Special Activities - A youth scientist forum will showcase innovative teams and technologies in polymer recycling, featuring over 20 presentations on advanced recycling techniques and carbon footprint assessment [16].