摘要：【中文】一种耐高温水性丙烯酸酯压敏胶，含羧酸基团乳液由如下重量份的原料制备得到：丙烯酸酯单体70‑120份，羧基单体1‑5份，多官能团单体0.1～1份，乳化剂0.3～2份，引发剂0.2～1份，还原剂0.05‑0.3份，去离子水70‑130份；含环氧基团乳液如下重量份的原料制备得到：丙烯酸酯单体70‑120份，环氧基单体1‑5份，乳化剂0.3～2份，引发剂0.2～1份，还原剂0.05‑0.3份，去离子水0‑130份。本发明通过分别合成两种丙烯酸酯乳液后按一定比例混合，乳液中的羧酸基团和环氧基团在高温下发生交联，且交联全部发生在乳胶粒之间，胶膜高交联度，剥离力降低较小，提高水性丙烯酸酯压敏胶耐高温性能。 【EN】The high-temperature-resistant water-based acrylate pressure-sensitive adhesive is prepared from the following raw materials in parts by weight: 70-120 parts of acrylate monomer, 1-5 parts of carboxyl monomer, 0.1-1 part of polyfunctional group monomer, 0.3-2 parts of emulsifier, 0.2-1 part of initiator, 0.05-0.3 part of reducing agent and 70-130 parts of deionized water; the epoxy group-containing emulsion is prepared from the following raw materials in parts by weight: 70-120 parts of acrylate monomer, 1-5 parts of epoxy group monomer, 0.3-2 parts of emulsifier, 0.2-1 part of initiator, 0.05-0.3 part of reducing agent and 0-130 parts of deionized water. According to the invention, two acrylate emulsions are respectively synthesized and then mixed according to a certain proportion, carboxylic acid groups and epoxy groups in the emulsions are crosslinked at high temperature, and the crosslinking is completely generated among emulsion particles, so that the adhesive film has high crosslinking degree, the peeling force is reduced slightly, and the high temperature resistance of the water-based acrylate pressure-sensitive adhesive is improved.

摘要：【中文】一种耐醇擦洗耐酸碱型水性聚氨酯的制备，包括如下步骤：步骤（1）：将三羟化合物、芳香族单羧酸、催化剂Ⅰ、抗氧剂投入反应釜升温至100℃～160℃反应至酸值理论值，降温至40℃；步骤（2）：将聚碳型二元醇投入反应釜，在90℃～130℃、－0.08Mpa～－0.1Mpa条件下除水60分钟，降温至80℃投脂肪族异氰酸酯,反应5分钟后投催化剂Ⅱ，反应3小时后降温；步骤（3）：降温至70℃，投二元醇、甘油单酯、二羟基磺酸盐和羟基酸，升温至70℃～95℃保温反应3小时，降温至40℃～60℃投蓖麻油衍生物多元醇，升温至90℃～130℃再反应2小时，降温至70℃投计量软水，高速分散25分钟，过滤出料。 【EN】The preparation method of the alcohol scrubbing resistant and acid and alkali resistant waterborne polyurethane comprises the following steps: step (1): putting a trihydroxy compound, aromatic monocarboxylic acid, a catalyst I and an antioxidant into a reaction kettle, heating to 100-160 ℃, reacting to reach an acid value theoretical value, and cooling to 40 ℃; step (2): adding polycarbonate type dihydric alcohol into a reaction kettle, removing water for 60 minutes under the conditions of 90-130 ℃ and-0.08-0.1 Mpa, cooling to 80 ℃, adding aliphatic isocyanate, reacting for 5 minutes, adding a catalyst II, reacting for 3 hours, and cooling; and (3): cooling to 70 ℃, adding dihydric alcohol, monoglyceride, dihydroxy sulfonate and hydroxy acid, heating to 70-95 ℃, preserving heat, reacting for 3 hours, cooling to 40-60 ℃, adding castor oil derivative polyol, heating to 90-130 ℃, reacting for 2 hours, cooling to 70 ℃, adding metered soft water, dispersing at high speed for 25 minutes, filtering and discharging.

摘要：【中文】一种特高粘丙烯酸酯乳液压敏胶，由如下重量份的原料制备得到：丙烯酸酯单体70～120份，功能单体1～5份，内交联单体1～5份，液态增粘树脂1～15份，乳化剂0.3～2份，引发剂0.2～1份，还原剂0.05～0.3份，润湿剂0.05～1份，消泡剂0.05～1份，去离子水70～130份。本发明创造性地将液态增粘树脂制成亚微米级，并依其作为种子进行乳液聚合，乳胶粒内部包裹增粘树脂，具有特殊的核壳结构，核是增粘树脂、壳为聚丙烯酸酯，两者在成膜过程相互融合，使胶膜具有极佳的初粘性、粘接强度和耐温性，且两者比例可调性能范围广，为解决水性丙烯酸酯压敏胶综合性能差的缺点提供了新的思路，可以大范围推广使用。 【EN】The pressure-sensitive adhesive of the acrylate emulsion with the extra-high viscosity is prepared from the following raw materials in parts by weight: 70-120 parts of acrylate monomer, 1-5 parts of functional monomer, 1-5 parts of internal crosslinking monomer, 1-15 parts of liquid tackifying resin, 0.3-2 parts of emulsifier, 0.2-1 part of initiator, 0.05-0.3 part of reducing agent, 0.05-1 part of wetting agent, 0.05-1 part of defoaming agent and 70-130 parts of deionized water. The invention creatively prepares the liquid tackifying resin into submicron level, carries out emulsion polymerization by taking the liquid tackifying resin as a seed, wraps the tackifying resin in the latex particles, has a special core-shell structure, has a core of the tackifying resin and a shell of polyacrylate, and is mutually fused in the film forming process, so that the adhesive film has excellent initial viscosity, bonding strength and temperature resistance, and the proportion adjustable performance range of the tackifying resin and the shell is wide, provides a new idea for solving the defect of poor comprehensive performance of the water-based acrylate pressure-sensitive adhesive, and can be popularized and used in a large range.

摘要：【中文】一种低粘度高剥离强度UV固化复合胶，其特征在于：重量份配比如下：分子量2000的聚醚多元醇10‑20份，分子量1500的脂肪族聚酯多元醇10‑20份，分子量1000的对芳香族聚酯多元醇2‑5份，芳香族二异氰酸酯2‑4份，脂肪族二异氰酸酯2‑5份，羟基甲基丙烯酸酯2‑4份，丙烯酸酯单体40‑60份，光引发剂1‑2份。本发明产品无溶剂，解决了复合胶复合牢度问题，可以保证复合膜的使用要求；产品容易保存，保质期比双组分时间长；生产出的UV复合胶适合多种基材使用；在保证UV复合胶强度的前提下，降低了UV复合胶的粘度，使其易于涂覆，保证产品的上机使用效果。 【EN】The low-viscosity high-peel-strength UV curing composite adhesive is characterized in that: the weight portions are as follows: 10-20 parts of polyether polyol with the molecular weight of 2000, 10-20 parts of aliphatic polyester polyol with the molecular weight of 1500, 2-5 parts of p-aromatic polyester polyol with the molecular weight of 1000, 2-4 parts of aromatic diisocyanate, 2-5 parts of aliphatic diisocyanate, 2-4 parts of hydroxy methacrylate, 40-60 parts of acrylate monomer and 1-2 parts of photoinitiator. The product of the invention has no solvent, solves the problem of composite fastness of the composite adhesive, and can ensure the use requirement of the composite film; the product is easy to store, and the shelf life is longer than that of the two components; the produced UV composite adhesive is suitable for various base materials; on the premise of ensuring the strength of the UV composite adhesive, the viscosity of the UV composite adhesive is reduced, so that the UV composite adhesive is easy to coat, and the on-machine use effect of a product is ensured.

摘要：【中文】一种热固化兼UV固化复合胶，配方如下：改性丙烯酸酯20‑40份,端NCO聚氨酯丙烯酸酯20‑40份,丙烯酸酯单体20‑30份,光引发剂4‑6份,光敏剂0.2‑1份,助剂4‑6份,端OH丙烯酸酯或端OH丙烯酸酯低聚物20‑50份。其制备方法为：（1）在反应釜中，按重量份加入改性丙烯酸酯，端OH丙烯酸酯或端OH丙烯酸酯低聚物、丙烯酸酯单体，光引发剂，光敏剂，助剂，室温搅拌均匀；（2）低温密封避光储存，在使用时加入端NCO聚氨酯丙烯酸酯，搅拌均匀，得热固化型兼UV固化复合胶。本发明的复合胶能够使复合膜的剥离强度达到10N/25mm，解决了溶剂型复合胶的替代问题，可以保证复合膜的使用要求。 【EN】A thermosetting and UV curing composite adhesive comprises the following formula: 20-40 parts of modified acrylate, 20-40 parts of terminal NCO polyurethane acrylate, 20-30 parts of acrylate monomer, 4-6 parts of photoinitiator, 0.2-1 part of photosensitizer, 4-6 parts of auxiliary agent and 20-50 parts of terminal OH acrylate or terminal OH acrylate oligomer. The preparation method comprises the following steps: (1) adding modified acrylate, OH-terminated acrylate or OH-terminated acrylate oligomer, acrylate monomer, photoinitiator, photosensitizer and auxiliary agent in a reaction kettle in parts by weight, and stirring uniformly at room temperature; (2) and (3) sealing at low temperature and storing in dark place, adding NCO polyurethane acrylate at the end when in use, and stirring uniformly to obtain the thermal curing type and UV curing composite adhesive. The composite adhesive of the invention can make the peel strength of the composite film reach 10N/25mm, solve the problem of replacing solvent type composite adhesive and ensure the use requirement of the composite film.

摘要：【中文】本发明属于L‑丙氨酸生产技术领域，具体公开了一种L‑丙氨酸的发酵生产方法。本发明提供的L‑丙氨酸的发酵生产方法，采用一次性投料发酵工艺，将发酵所需的糖源、氮源、无机盐等一次性投入发酵罐，灭菌降温后，再移入种子，发酵培养生产L‑丙氨酸。通过对发酵条件的优化，例如提高投糖量、控制培养风量，在保证培养所需的氧气量同时，控制发酵过程中培养温度、pH值等，突破性的提高了L‑丙氨酸发酵产酸率，缩短了发酵周期。 【EN】The invention belongs to the technical field of L-alanine production, and particularly discloses a fermentation production method of L-alanine. The fermentation production method of L-alanine provided by the invention adopts a one-time feeding fermentation process, and sugar source, nitrogen source, inorganic salt and the like required by fermentation are put into a fermentation tank at one time, and after sterilization and cooling, seeds are transferred into the fermentation tank for fermentation culture to produce the L-alanine. By optimizing fermentation conditions, such as increasing sugar feeding amount, controlling culture air volume, ensuring the oxygen amount required by culture, controlling culture temperature, pH value and the like in the fermentation process, the fermentation acid production rate of L-alanine fermentation is improved in a breakthrough manner, and the fermentation period is shortened.

摘要：【中文】本发明属于核电厂维修技术领域，具体涉及一种用于核电厂电动机就地抽转子的便携式工具。两个X形斜支撑均与两个开形门架螺纹固定，两个开形门架的顶部螺纹固定有同一个横梁，两个开形门架之间设有滑轮，滑轮挂有U形安装架，U形安装架活动套设在横梁上，U形安装架的两侧内壁上均螺纹固定有固定板，两个固定板中的一个固定板靠近另一个固定板的一侧转动安装有两个滚动轮，滚动轮与横梁的顶部滑动安装，另一个固定板靠近一个固定板的一侧转动安装有两个第一齿轮，两个第一齿轮均与横梁的顶部滑动安装，两个第一齿轮之间设有同一个转动安装在另一个固定板一侧的第二齿轮。本发明设计合理，操作方便，便于就地对电动机执行解体、抽转子操作。 【EN】The invention belongs to the technical field of maintenance of nuclear power plants, and particularly relates to a portable tool for a nuclear power plant motor to pump a rotor on site. Two X-shaped bearing diagonal are all fixed with two shape of division portal screw thread, the top screw thread of two shape of division portals is fixed with same crossbeam, be equipped with the pulley between two shape of division portals, the pulley is hung there is the U-shaped mounting bracket, U-shaped mounting bracket movable sleeve is established on the crossbeam, equal screw thread is fixed with the fixed plate on the both sides inner wall of U-shaped mounting bracket, one side that one fixed plate in two fixed plates is close to another fixed plate is rotated and is installed two wheels that roll, the top slidable mounting of wheel and crossbeam rolls, one side that another fixed plate is close to a fixed plate is rotated and is installed two first gears, two first gears all with the top slidable mounting of crossbeam, be equipped with same second gear of installing in another fixed plate one side of rotating between two first. The invention has reasonable design and convenient operation, and is convenient for the operation of disassembling the motor and extracting the rotor on the spot.