1、 沈阳化工学院 本科毕业论文 题 目：可预涂微胶囊厌氧胶的研究毕业论文任务书应用化学 专业0902 班学生：毕业论文题目： 可预涂微胶囊厌胶的研究毕业论文内容：1.高分子分散剂聚丙烯酸钠的合成2. 高分子分散剂苯乙烯-可预涂微胶囊厌胶的合成研究3. 微胶囊的合成研究毕业论文专题部分：1.文献综述2. 聚丙烯酸丁酯/丙烯酸钠的合成3. 苯乙烯-丙烯酸-马来酸酐三元共聚物的合成4. 预涂型厌氧胶微胶囊的合成起止时间： 2013 年 3 月- 2013 年 6 月指导教师： 签字 年 月 日教研室主任： 签字 年 月 日院系负责人： 签字 年 月 日内容摘要 预涂型厌氧胶是厌氧胶系列产品中技术含量最
2、高的新品种，它不同于已在工业中广泛应用的液态厌氧胶，是水剂型双组份胶。A组份主要包括聚合单体、分散剂、稳定剂、阻聚剂、促进剂、助促进剂及改性剂等;B组份为含过氧化物固化引发剂的微胶囊。本文合成了A组分高分子分散剂即聚丙烯酸丁酯/丙烯酸钠、苯乙烯-丙烯酸-马来酸酐三元共聚物，B组分微胶囊，并用合成的原料合成了可预涂微胶囊型厌氧胶;采用红外光谱、粘度、气相色谱、扭矩扳手等对合成的物质进行了表征及测试。具体研究内容及主要结论如下：1.以丙烯酸丁酯和丙烯酸为原料，制得聚丙烯酸丁酯/丙烯酸钠乳化剂。探讨了过硫酸铵（APS）用量、十二烷基硫醇（DDM）用量对聚丙烯酸丁酯/丙烯酸钠聚合反应的影响及聚丙烯酸丁
3、酯/丙烯酸钠的用量对厌氧胶乳液聚合反应的影响，合成聚丙烯酸丁酯/丙烯酸钠的最优条件为：当温度70，APS用量0.8%，DDM用量0.5%，BA：AANa=2:3时乳化效果较好；当P（BA/AANa）用量3%，配制的可预涂厌氧胶，经检测各项性能良好。2.以苯乙烯、丙烯酸和马来酸酐为原料，制得苯乙烯-丙烯酸-马来酸酐三元共聚物为高分子分散剂。探讨了不同n(ST)：n(AA)：n(MAH)的用量、引发剂过氧化苯甲酰（BPO）的用量对苯乙烯-丙烯酸-马来酸酐（ST-AA-MAH）三元共聚物聚合反应的影响及苯乙烯-丙烯酸-马来酸酐（ST-AA-MAH）三元共聚物的用量对厌氧胶乳液聚合反应的影响，合成三元
4、共聚物的最有条件是：当温度为90，BPO用量为3%，单体投料摩尔比为n(SA):n(AA):n(MAH)=0.5:1:1时分散效果较好；配置的厌氧胶经检测各项性能良好。3.采用原位聚合法制备了以脲醛树脂为壁材、过氧化苯甲酰为芯材的厌氧胶固化引发剂微胶囊，并且用均相溶液聚合法，制备了苯乙烯马来酸酐共聚物做为乳化剂来保持芯材的均匀分布。实验表明，苯乙烯马来酸酐共聚物不是严格的交替共聚物，但交替的倾向较大；以苯乙烯马来酸酐共聚物和阿拉伯树胶作为复合乳化剂，反应终点pH值为1.5左右，反应温度70，反应时间4h，搅拌速率1000r/min，可制得分散适中、形貌较好的微胶囊。关键词：高分子分散剂；乳化剂
5、；微胶囊；可预涂厌氧胶；Study on anaerobic adhesive precoated microcapsules AbstractThe precoatable microcapsule type anaerobic adhesive is anaerobic adhesive series products of the highest technical content among varieties,which is different from has been widely applied in industrial liquid anaerobic adhesive,
6、and is the water dosage forms a two-component glue.Part A mainly includes polymerization monomer, dispersing agent, stabilizer, inhibitor, accelerator, help promote agent and modifying agent, etc;Part B component is microcapsule, which inside is initiator.Part A macromolecule dispersant was synthesi
7、zed in this paper, namely sodium poly (butyl acrylate/acrylic acid, styrene - acrylic acid, maleic anhydride terpolymer, part B microcapsules, and synthetic materials can be synthesized pre TuWei capsule type anaerobic adhesive。This synthetic material was characterized by IR, GC, viscosity, torque.
8、And yet the specific contents and main conclusions are as follows:1.Poly(butylacrylate/sodium acrylate)P(BA/AANa) as an emulsifier was prepared with butyl acrylate and crylic acid as monomers. The effect of the amounts of initiator and DDM on polymerization reaction and the effect of the amounts of
9、emulsifier on emulsion polymerization reaction were studied. The optimum reaction condition of P (BA/AANa) were: the molar ratio of n (butyl acrylate): n(crylic acid)was 2:3; reaction temperature was 70; the mass of initiator persulfate (APS) is 8% (base on total mass of reaction materials); the mas
10、s of lauryl mercaptan (DDM) is 0.5% (base on total mass of reaction materials). The mass of emulsifier was 3% (base on total mass of reaction materials),the precoatable microcapsule type anaerobic adhesive we prepared was excellent according to the result of the detections.2.With styrene, acrylic ac
11、id and maleic anhydride as raw materials, produce styrene - acrylic acid, maleic anhydride terpolymer of polymeric dispersant.Discusses the different n (ST) : n (AA) : n (MAH), the dosage of initiator benzoyl peroxide (BPO), dosage of styrene - acrylic acid, maleic anhydride (ST - AA - MAH) terpolym
12、er of polymerization and Styrene - acrylic acid, maleic anhydride (ST - AA - MAH) terpolymer dosage effect on anaerobic adhesive emulsion polymerization reaction.3.The water soluble polymer dispersing agent was prepared with styrene-maleic anhydride copolymer(PS-MAn)by solution copolymerization meth
13、od. Microcapsules containing initiator for anaerobic adhesive by in situ polymerization in which urea-form aldehyde resin was used as the wall material and benzoyl peroxide was used as the core material. The result showed that styrene-maleic anhydride copolymer was not a strictly alternating copolym
14、er but had greater tendency to alternate; When the microencapsulation was conducted in a system modified by multiple emulsifiers, the mixture of styrene maleic anhydride copolymer and gum arabic, the end point pH value was at around 1.5, the reaction temperature was 70, the reaction time was 4 h, an
15、d the agitation rate was of 1000r/min, the microcapsules were dispersed moderately in size, with good shape and appearance, and the diameter was about 100m.Keywords：polymeric dispersant；emulsifiers；microcapsules；triethylene glycol dimethacrylate；目录引言10第一章 文献综述111.1 前言111.2 可预涂厌氧胶的组成、结构和固化引发机理111.2.1 可预涂厌氧胶的组成、结构111.2.2 可预涂厌氧胶的引发机理131.3 可预涂厌氧胶的发展概况161.4 可预涂厌氧胶的应用16第二章 聚丙烯酸丁酯/丙烯酸钠P(BA/AANa)的合成182.1 前言182.2 实验部分182.2.1 实验原料及仪器182.2.2 实验装置192.2.3 实验步骤192.2.4 产品的表征192.3.3 DDM用量对P（BA/AANa）性能的影响222.3.4 P（BA/AANa）用量对乳液性能的影响222.4
