摘要：【中文】本发明公开了一种囊壁可降解的小分子防老剂微胶囊乳液及其制备方法和应用。为解决聚醚耐热氧降解这一难题，行业内常用的手段是添加防老剂，但防老剂多为小分子物质，直接加入乳胶粒内部容易发生热力学迁移，影响乳液外观和乳液稳定性，迁移析出后耐老化效果也受到影响。本发明通过微胶囊包覆技术，制备防老剂微胶囊，将小分子防老剂分子包覆在粒子内部，同时，通过水合肼后扩链，得到脲键含量很高的壳层结构，设置动力学屏障，阻止小分子防老剂的迁移，形成稳定的防老化结构；可降解防老剂微胶囊乳液添加到水性超纤含浸树脂中，使用方便，存储过程中稳定。 【EN】The invention discloses a capsule wall degradable micromolecular antioxidant microcapsule emulsion and a preparation method and application thereof. In order to solve the problem of thermal-oxidative degradation resistance of polyether, an anti-aging agent is added in the industry, but the anti-aging agent is mostly a small molecular substance, and is easily subjected to thermodynamic migration when being directly added into emulsion particles, so that the appearance and the stability of the emulsion are influenced, and the anti-aging effect is also influenced after the migration and precipitation. The invention prepares the anti-aging agent microcapsule by a microcapsule coating technology, coats micromolecule anti-aging agent molecules inside particles, obtains a shell structure with high urea bond content by hydrazine hydrate chain extension, sets a dynamic barrier, prevents the migration of the micromolecule anti-aging agent and forms a stable anti-aging structure; the degradable antioxidant microcapsule emulsion is added into the aqueous microfiber impregnating resin, so that the use is convenient and the storage process is stable.

摘要：【中文】本发明公开了一种亲水基团可解离的封闭型水性异氰酸酯固化剂及其制备方法。亲水与NCO密度的矛盾是现有固化剂的难点。本发明的封闭型水性异氰酸酯固化剂由多异氰酸酯与吡唑羧酸反应制得。本发明采用一种具有亲水性的封闭剂，该封闭剂在室温与多异氰酸酯反应后，既将NCO基团封闭又引入了羧基，中和后，固化剂分子直接具有亲水乳化能力，无需额外消耗NCO引入亲水基团，且高温解封后，亲水基团同时离去，最大程度的保证了NCO密度，可达到溶剂型固化剂的固化效果。 【EN】The invention discloses a closed water-based isocyanate curing agent with dissociable hydrophilic groups and a preparation method thereof. The contradiction between hydrophilicity and NCO density is a difficulty of the existing curing agent. The blocked water-based isocyanate curing agent is prepared by reacting polyisocyanate with pyrazolecarboxylic acid. The invention adopts a hydrophilic blocking agent, after the blocking agent reacts with polyisocyanate at room temperature, NCO groups are blocked and carboxyl groups are introduced, after neutralization, curing agent molecules directly have hydrophilic emulsifying capacity, NCO is not required to be additionally consumed to introduce hydrophilic groups, and after high-temperature deblocking, the hydrophilic groups are simultaneously removed, thereby ensuring the density of NCO to the maximum extent and achieving the curing effect of a solvent type curing agent.