Non Isocyanate Polyurethane(非异氰酸酯聚氨酯)研究综述
Non Isocyanate Polyurethane 非异氰酸酯聚氨酯 - The bis(cyclic carbonate) products exhibit potentials for components in the non-isocyanate polyurethanes (NIPUs) process. [1] Then a series of non-isocyanate polyurethanes (NIPUs) were synthesized. [2] The hydrophilic nature of starch limits its dispersion in hydrophobic PU polymers, although it is a significant benefit in creating starch-embedded non-isocyanate polyurethane (NIPU) composites. [3] Soy-protein isolate (SPI) was used to prepare non-isocyanate polyurethane (NIPU) thermosetting adhesives for wood panels by reacting it with dimethyl carbonate (DMC) and hexamethylene diamine. [4] Therefore, within the protective organic coatings market, this article provides a review of the most recent developments in environmentally friendly solutions, including bio-based and water-borne epoxy, hyperbranched polyester for low- volatile organic compounds (VOC) coatings, waterborne polyurethane and non-isocyanate polyurethanes (NIPUs), and graphene or bio-based fillers for acrylics. [5] This work introduces dual dynamic covalent bonds in the network of a non-isocyanate polyurethane prepared using a cyclic carbonate derived from CO2 to realize self-healing and reprocessing at a low temperature (50 °C) or under UV light. [6] Sorbitol based non-isocyanate polyurethane was also introduced. [7] Bio-based cyclic carbonates are of significant research interest as monomers for non-isocyanate polyurethane (NIPU) synthesis. [8] The cyclic carbonates as non-isocyanate polyurethane (NIPU) precursors are usually prepared via CO 2 fixation under harsh conditions for a satisfactory conversion rate, which is energy-intensive. [9] Predominantly non-furanic commercial humins were used to prepare humin-based non-isocyanate polyurethane (NIPU) resins for wood panel adhesives. [10] CO2 was fixed by synthesizing a cyclic carbonate, which was used to prepare non-isocyanate polyurethane that can be reprocessed. [11] Among different attempts to replace the conventional process, polyaddition of cyclic carbonates (CCs) and polyfunctional amines seems to be the most promising way to obtain non-isocyanate polyurethanes (NIPUs) or, more precisely, polyhydroxyurethanes (PHUs), while primary and secondary –OH groups are being formed alongside urethane linkages. [12] ) as a bioresource was utilized for Non-isocyanate Polyurethanes (NIPUs) synthesis. [13] Epoxidised rubber seed oil (ERSO) was successfully synthesized into non-isocyanate polyurethane via carboxylation method whereas peroxoformic acid was formed by in-situ reaction for epoxidation. [14] Preparation of ambient and UV curing non-isocyanate polyurethane (NIPU) coatings has been reported using a series of acetoacetylated non-isocyanate polyurethane (AA-NI-PUPO) oligomers. [15] The transition towards safer and more sustainable production of polymers has led to a growing body of academic research into non-isocyanate polyurethanes (NIPUs) as potential replacements for conventional, isocyanate-based polyurethane. [16] Therefore, this study focused on the development of non-isocyanate polyurethane lignin and tannin resins for wood adhesives. [17]双（环状碳酸酯）产品在非异氰酸酯聚氨酯（NIPU）工艺中表现出潜在的组分。 [1] 然后合成了一系列非异氰酸酯聚氨酯（NIPU）。 [2] 淀粉的亲水性限制了其在疏水性 PU 聚合物中的分散性，尽管它在制造淀粉包埋的非异氰酸酯聚氨酯 (NIPU) 复合材料方面具有显着优势。 [3] 大豆分离蛋白 (SPI) 通过与碳酸二甲酯 (DMC) 和六亚甲基二胺反应制备用于木板的非异氰酸酯聚氨酯 (NIPU) 热固性粘合剂。 [4] 因此，在保护性有机涂料市场中，本文回顾了环保解决方案的最新发展，包括生物基和水性环氧树脂、用于低挥发性有机化合物 (VOC) 涂料的超支化聚酯、水性聚氨酯和非异氰酸酯聚氨酯 (NIPU)，以及用于丙烯酸树脂的石墨烯或生物基填料。 [5] 这项工作在使用源自 CO2 的环状碳酸酯制备的非异氰酸酯聚氨酯网络中引入了双动态共价键，以实现在低温（50°C）或紫外光下的自修复和再加工。 [6] 还介绍了基于山梨醇的非异氰酸酯聚氨酯。 [7] 生物基环状碳酸酯作为非异氰酸酯聚氨酯 (NIPU) 合成的单体具有重要的研究意义。 [8] 作为非异氰酸酯聚氨酯 (NIPU) 前体的环状碳酸酯通常在苛刻的条件下通过 CO 2 固定来制备，以获得令人满意的转化率，这是能源密集型的。 [9] 主要使用非呋喃商业腐殖质来制备用于木板粘合剂的基于腐殖质的非异氰酸酯聚氨酯 (NIPU) 树脂。 [10] 通过合成环状碳酸酯来固定 CO2，用于制备可再加工的非异氰酸酯聚氨酯。 [11] 在替代传统工艺的各种尝试中，环状碳酸酯 (CC) 和多官能胺的加聚似乎是获得非异氰酸酯聚氨酯 (NIPU) 或更准确地说是多羟基聚氨酯 (PHU) 的最有希望的方法，而初级和二级 – OH 基团与氨基甲酸酯键一起形成。 [12] ) 作为生物资源被用于非异氰酸酯聚氨酯 (NIPU) 的合成。 [13] 通过羧化法成功地将环氧化橡胶籽油（ERSO）合成为非异氰酸酯聚氨酯，而通过原位反应形成过氧甲酸进行环氧化。 [14] 已经报道了使用一系列乙酰乙酰化非异氰酸酯聚氨酯 (AA-NI-PUPO) 低聚物制备环境和紫外线固化非异氰酸酯聚氨酯 (NIPU) 涂料。 [15] 向更安全和更可持续生产聚合物的转变导致越来越多的学术研究将非异氰酸酯聚氨酯 (NIPU) 作为传统异氰酸酯基聚氨酯的潜在替代品。 [16] 因此，本研究的重点是开发用于木材粘合剂的非异氰酸酯聚氨酯木质素和单宁树脂。 [17]