一种功能性纤维素基纳米粒子及其绿色制备方法和应用

本发明提供了一种功能性纤维素基纳米粒子及其绿色制备方法和应用，属于纳米颗粒制备技术领域。该方法为：在低温碱/尿素水溶液中溶解微晶纤维素，高速剪切5～10min后得到纤维素溶液；向该溶液中滴加单体烯丙基缩水甘油醚，在室温下反应，反应结束后经透析自组装，得到纤维素基功能性纳米粒子。本发明制备的这一功能性纤维素纳米粒子溶液可作为用于水凝胶制备的交联剂，这一纳米粒子交联剂的使用能替代传统的毒性化学交联剂——环氧氯丙烷。This invention provides a functional cellulose-based nanoparticle and its green preparation method and application, which falls under the technical field of nanoparticle preparation. The preparation process is as follows: dissolve microcrystalline cellulose in a low-temperature alkali/urea aqueous solution, conduct high-speed shearing for 5 to 10 minutes to obtain a cellulose solution; add the monomer allyl glycidyl ether dropwise into the solution, react at room temperature, and after the reaction finishes, obtain functional cellulose-based nanoparticles through dialysis and self-assembly. The functional cellulose nanoparticle solution prepared by this invention can serve as a cross-linking agent for hydrogel preparation, and the application of this nanoparticle cross-linking agent can replace the traditional toxic chemical cross-linking agent, epichlorohydrin.

搜集汇总

背景与挑战

背景概述

该数据集涉及一种功能性纤维素基纳米粒子的绿色制备方法，通过在低温碱/尿素溶液中处理微晶纤维素并添加烯丙基缩水甘油醚反应，经透析自组装获得纳米粒子。该纳米粒子可作为环保交联剂用于水凝胶制备，以替代传统有毒的环氧氯丙烷。