摘要：【中文】本发明公开了一种嵌段季铵基改性聚硅氧烷及其制备方法。本发明合成了端叔胺基含硅聚醚，根据相似相容原理，在无溶剂条件下，端叔胺基聚醚的氨基与端环氧硅油的环氧基能够发生均相开环加成反应，真正实现了无溶剂(AB)n型或(ABA)n嵌段共聚改性硅油的合成技术，而且在端叔胺基聚醚的分子结构中引入硅氧烷，使得在其链两端和链中均含有氨基，较现有普通叔胺的氨基含量明显提高，且具能自由旋转的硅氧键(Si‑O)，由其作为中间体，制得嵌段季铵基改性聚硅氧烷(俗称嵌段硅油)的柔软性能也大大提升。 【EN】The invention discloses a block quaternary ammonium group modified polysiloxane and a preparation method thereof. According to the invention, the tertiary amine-terminated silicon-containing polyether is synthesized, according to a similar compatibility principle, under the condition of no solvent, the amino group of the tertiary amine-terminated polyether and the epoxy group of the epoxy-terminated silicone oil can generate a homogeneous ring-opening addition reaction, the synthesis technology of solvent-free (AB) n type or (ABA) n block copolymerization modified silicone oil is really realized, and siloxane is introduced into the molecular structure of the tertiary amine-terminated polyether, so that the two ends and the chain of the tertiary amine-terminated polyether both contain amino groups, the amino content is obviously improved compared with that of the existing common tertiary amine, and the siloxane bond (Si-O) with free rotation is used as an intermediate, and the flexibility of the block quaternary ammonium group modified polysiloxane (commonly called block silicone oil) prepared by using the siloxane as the intermediate.

摘要：【中文】本发明公开了一种纳米粒子型原位引发剂及其制备方法和应用。本发明的制备方法包括：首先γ‑异氰酸酯基丙基三乙氧基硅烷和亚硫酸氢钠反应30～35分钟，乙醇作为溶剂和水解抑制剂，然后升温再加入氨水和纳米二氧化硅反应2～4小时，然后离心并用乙醇冲洗，干燥得到纳米粒子型原位引发剂。本发明通过对纳米二氧化硅粒子的化学修饰，使其表面带有引发活性，在原位细乳液聚合过程中，纳米粒子引发剂可引发丙烯酸酯聚合，使丙烯酸酯聚合物直接接枝于粒子表面，从而降低凝胶率，提高树脂耐水性和力学强度。 【EN】The invention discloses a nanoparticle type in-situ initiator, and a preparation method and application thereof. The preparation method comprises the following steps: firstly reacting gamma-isocyanate propyl triethoxysilane with sodium bisulfite for 30-35 minutes, taking ethanol as a solvent and a hydrolysis inhibitor, then heating, adding ammonia water and nano silicon dioxide to react for 2-4 hours, then centrifuging, washing with ethanol, and drying to obtain the nanoparticle type in-situ initiator. The surface of the nano silicon dioxide particles is provided with initiating activity through chemical modification of the nano silicon dioxide particles, and in the in-situ miniemulsion polymerization process, the nano particle initiator can initiate acrylate polymerization to enable the acrylate polymer to be directly grafted on the surfaces of the particles, so that the gel fraction is reduced, and the water resistance and the mechanical strength of the resin are improved.

摘要：【中文】本发明公开了一种硅烷改性的高分子稳定剂及其制备方法和应用。本发明高分子稳定剂的制备方法为：在氮气保护下，将异丙醇加入到反应容器中，开启搅拌，按顺序加入分子量控制剂、丙烯酸、甲氧基聚乙二醇丙烯酸酯和丙烯酸三烷基硅酯，升温至82～86℃下，在0.3～0.5小时内滴加完引发剂，并继续反应2～3小时，再降至室温，在真空条件下抽去异丙醇，得到硅烷改性的高分子稳定剂。本发明的高分子乳化剂有效结合阴离子单体、非离子单体和有机硅单体，应用于聚硅氧烷单体和丙烯酸酯的乳液聚合，能有效提高聚合过程和乳液存放过程的稳定性，提升单体转化率和树脂耐水性。 【EN】The invention discloses a silane modified high-molecular stabilizer and a preparation method and application thereof. The preparation method of the macromolecular stabilizer comprises the following steps: adding isopropanol into a reaction vessel under the protection of nitrogen, starting stirring, sequentially adding a molecular weight control agent, acrylic acid, methoxy polyethylene glycol acrylate and trialkylsilyl acrylate, heating to 82-86 ℃, dropwise adding an initiator within 0.3-0.5 h, continuously reacting for 2-3 h, cooling to room temperature, and pumping out the isopropanol under a vacuum condition to obtain the silane-modified polymeric stabilizer. The high molecular emulsifier disclosed by the invention is effectively combined with an anionic monomer, a nonionic monomer and an organic silicon monomer, is applied to emulsion polymerization of a polysiloxane monomer and acrylic ester, can effectively improve the stability of a polymerization process and an emulsion storage process, and improves the monomer conversion rate and the water resistance of resin.

摘要：【中文】本发明公开了一种水性超细纤维合成革的制备方法。本发明包括步骤：1)将海岛纤维非织造布的表面涂覆水性疏水助剂然后烘干固化，得到经表面疏水预处理的基布A；2)基布A均匀浸入水性聚氨酯含浸树脂中，经过轧辊使基布A含浸充分，然后烘干固化，得到复合基布B；3)复合基布B进行碱减量、水洗、酸中和及烘干处理，去除复合基布B中的“海”组分和疏水助剂，得到超细纤维基布C；4）超细纤维基布C进行磨毛、染色、化柔处理，得到具有聚氨酯含浸树脂梯度分布的水性超细纤维合成革。本发明中超细纤维合成革的密度具有明显梯度变化，表面活络，内部紧实，增加产品的肉感弹性、手感饱满度，仿真效果更好。 【EN】The invention discloses a preparation method of aqueous superfine fiber synthetic leather. The invention comprises the following steps: 1) coating a water-based hydrophobic auxiliary agent on the surface of the sea-island fiber non-woven fabric, and then drying and curing to obtain a base fabric A subjected to surface hydrophobic pretreatment; 2) uniformly soaking the base cloth A into the water-based polyurethane impregnating resin, fully impregnating the base cloth A through a roller, and then drying and curing to obtain a composite base cloth B; 3) carrying out alkali decrement, water washing, acid neutralization and drying treatment on the composite base cloth B, and removing a sea component and a hydrophobic auxiliary agent in the composite base cloth B to obtain superfine fiber base cloth C; 4) and (3) carrying out sanding, dyeing and softening treatment on the superfine fiber base cloth C to obtain the water-based superfine fiber synthetic leather with gradient distribution of polyurethane impregnated resin. The density of the superfine fiber synthetic leather has obvious gradient change, the surface is loose, the interior is compact, the meat-feeling elasticity and the hand feeling fullness of the product are increased, and the simulation effect is better.

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.