PFI-TT: A non-toxic, biobased, and recyclable polyurethane for foam-in-place packaging and rigid foam insulation.

PFI-TT：一种无毒、生物基且可回收的聚氨酯，用于现场发泡包装和硬质泡沫绝缘材料。

• 批准号: 2122822
• 负责人: Srikanth Pilla
• 金额: $ 25万
• 依托单位: Clemson University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-09-01 至 2023-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2122822&HistoricalAwards=false
• 关键词: PFI; TT; non; toxic; biobased

The broader impact/commercial potential of this Partnerships for Innovation – Technology Translation (PFI-TT) project is the conversion from a toxic to benign manufacturing sequence for polyurethane foams in the packaging, insulation, and construction markets. Polyurethanes rank the 6th most produced plastic in the world yet use cancer-causing, mutagenic and reproductive toxins in their manufacture. This project combines a 100% biobased source with non-toxic ingredients to synthesize polyurethane foams that can be recycled back to their starting materials at their end-of-life. The ideal of reducing plastic waste in the environment and eliminating the use of carcinogenic material is desired across many industries. However, the use of one-time-use plastics in packaging applications as well as foams used for insulation has placed particular environmental focus on the polyurethane industry. This project addresses the need to transition from petroleum-based sources to biobased feedstocks and enable industrially viable processes for non-toxic polyurethanes in diverse commercial platforms. The successful outcome of this project would be a complete shift for the polyurethane industry by innovating new routes to polyurethanes that embrace a circular lifecycle. This project seeks to enable a room temperature foaming and curing protocol for a biobased, non-isocyanate polyurethane. Polyurethanes are manufactured commercially from polyols and isocyanates; The isocyanate carries significant health and safety dangers as it is a cancer-causing, mutagenic and a reproductive toxin (CMR). Non-isocyanate formulations in industry are currently very limited due to the inability to adapt new non-isocyanate chemistries to processing conditions typically used in industrial and commercial applications. To create reactive biobased precursors for synthesis, reductive catalytic fractionation (RCF) will be employed to woody feedstocks to extract an oil rich in bi-functional aromatic compounds capable of functionalizing with cyclic carbonates. A previous protocol will be leveraged to synthesize non-isocyanate polyurethane foams with specific chemical linkages capable of depolymerization post-synthesis. Room temperature foaming will be aided by catalyst optimization and a ultraviolet light-assisted curing process through the addition of acrylated monomers and reactive diluents containing vinyl groups. This approach will also facilitate the ability to vary the viscosity of the reaction mixture to produce low density foams for packaging applications. The successful outcome of the project may demonstrate a commercially viable process for producing non-toxic polyurethanes at room temperature that are specifically designed for degradation at their end-of-life.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

这种创新合作伙伴关系的更广泛的影响/商业潜力 - 技术翻译（PFI-TT）项目是在包装，隔热和建筑市场中从有毒的良性制造序列转换为良性制造序列。聚氨酯在世界上排名世界上最大的塑料中排名第六，但在其制造中使用了引起癌症，诱变和生殖毒素。该项目将100％生物基源与无毒成分结合在一起，以合成聚氨酯泡沫，可以在其寿命末恢复其起始材料。在许多行业中，需要减少环境中塑料废物并消除致癌物质的使用的理想。但是，在包装应用中使用一次性使用塑料以及用于绝缘材料的泡沫已将环境特别关注聚氨酯行业。该项目解决了从基于石油的来源过渡到生物基本原料的必要性，并在潜水员商业平台中为无毒聚氨酯提供了工业可行的过程。该项目的成功结果将是聚氨酯行业的完全转变，它通过将新的途径与包含圆形生命周期的聚氨酯进行创新。该项目旨在为生物基的非异氰酸酯聚氨酯提供室温泡沫和固化方案。聚氨酯是由多元醇和异氰酸酯商业生产的。异氰酸酯具有严重的健康和安全危险，因为它是一种引起癌症，诱变和生殖毒素（CMR）。由于无法将新的非异糖化学化学适应用于工业和商业应用通常使用的处理条件，因此目前在行业中的非异糖酸公式非常有限。为了创建反应性生物生物的前体进行合成，将使用降低的催化分馏（RCF）用于木质原料，以提取富含双功能的芳族化合物的油，能够通过环状碳酸盐官能化。先前的方案将被杠杆化以合成非异氰酸酯聚氨酯泡沫，其特定的化学连接能够沉积后合成。通过添加丙烯酸单体和含有乙烯基的反应性稀释剂，通过催化剂优化和紫外线辅助固化过程有助于室温泡沫。这种方法还将支持改变反应混合物的粘度以产生用于包装应用的低密度泡沫的能力。该项目的成功结果可能证明了在室温下在室温下生产无毒聚氨酯的商业可行过程，该过程是专门为退化时降解而设计的。该奖项反映了NSF的法定任务，并被认为是通过基金会的知识分子和更广泛的影响审查标准来通过评估来通过评估来获得的支持。

项目成果

From Petroleum to Biobased Crude: A Thermoplastic Polyurethane from Lignin-oil without Isocyanates

从石油到生物基原油：不含异氰酸酯的木质素油热塑性聚氨酯

• 发表时间: 2022
• 期刊: ANTEC 2022
• 作者: Sternberg, James;Brandner, David G.;Dreiling, Reagan J.;Ringsby, Arik;Kruger, Jacob S.;Beckham, Gregg T.;Pilla, Srikanth
• 通讯作者: Pilla, Srikanth