丙烯酸酯乳液压敏胶的研制

采用预乳液连续滴加单体的聚合工艺，制成了一种具有较好持粘力、剥离强度的丙烯酸酯乳液压敏胶。探讨了乳化剂种类、乳化剂用量、单体组成等因素对聚合反应及胶粘剂性能的影响。     

丙烯酸酯乳液压敏胶的研制

采用乳液聚合方法合成了丙烯酸酯压敏胶，探讨了乳化剂种类及用量、丙烯酸酯、交联单体、pH值对压敏胶性能的影响。实验结果表明：阴离子乳化剂与非离子乳化剂(质量)比为4：6、乳化剂用量为1．5g/L、乳液压敏胶性能在半年内无变化；丙烯酸丁酯与丙烯酸乙酯质量之比为94：6时，压敏胶的初粘性为15^#，持粘性为48h；交联单体N-羟甲基丙烯酰胺用量为2％时，压敏胶的初粘性为15^#，持粘性大于48h；乳液压敏胶的pH值为3～6时，压敏胶的初粘性大于15^#，持粘性大于48h。     

乳液型丙烯酸酯压敏胶研究进展

针对乳液型丙烯酸酯PSA(压敏胶)的耐水性较差、耐高温性欠佳及涂布干燥速率较慢等弊病,综述了乳液型丙烯酸酯PSA的最新研究方向及进展(包括高固含量乳液型丙烯酸酯PSA、乳液型交联丙烯酸酯PSA、低表面能材料粘接用乳液型丙烯酸酯PSA和耐水性乳液型丙烯酸酯PSA等);最后对其应用前景进行了展望。     

乳液型丙烯酸酯压敏胶的合成

研究了一种乳液型丙烯酸酯压敏胶的改进配方 ,并对影响其质量的因素进行了探讨。     

乳液型丙烯酸酯医用压敏胶的研制

介绍了乳液型丙烯酸酯医用压敏胶的合成方法,研究了各种因素对胶粘剂性能的影响。对溶剂型和乳液型丙烯酸酯医用压敏胶的性能进行了比较。     

乳液型丙烯酸酯压敏胶的合成

研究了一种乳液型丙烯酸酯压敏胶的改进配方,并对影响其质量的因素进行了探讨。     

丙烯酸酯乳液压敏胶复合无纺布的研制

文中用丙烯酸酯乳液压敏胶制备复合无纺布,着重讨论了胶种的选择,底纸的确定,生产工艺和工艺参数的选择等.     

乳液型丙烯酸酯压敏胶研究进展

综述了乳液型丙烯酸酯压敏胶近几年的改性研究方法,包括增黏树脂改性、有机硅改性、引入反应性乳化剂改性和纳米材料改性等,并着重介绍了纳米材料改性。最后对乳液型丙烯酸酯压敏胶的未来发展作了展望。     

反应性乳化剂应用于丙烯酸酯类乳液压敏胶的研制

使用正交试验法设计压敏胶配方,得到用反应性乳化剂参与的AA、HEA、BA和EA、M AA等多元共聚物乳液,研究该聚合物应用于压敏胶的初粘、持粘、剥离强度等力学性能。结果表明,在该体系下引发剂用量、反应温度、AA、反应性乳化剂用量对压敏胶乳液综合性能关系密切,其它各因素影响不明显。得到的优化配方为BA(83%)、AA(1%)、HEA(1%)、MM A和EA的混合单体(15%)。     

Preparation and characterization of self-crosslinking fluorinated polyacrylate latexes and their pressure sensitive adhesive applications

Self-crosslinking fluorinated polyacrylate latexes based on butyl acrylate (BA), fluorine monomer octafluoropentyl methacrylate (OFPMA), self-crosslinking functional monomers acrylic acid (AA) and 2-hydroxyethyl acrylate (HEA) were synthesized by a monomer-starved seeded semi-continuous emulsion polymerization process. The latexes and their corresponding films were characterized by laser particle size analyser, Fourier transform infrared (FTIR) spectroscopy, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), contact angle goniometer, X-ray photoelectron spectroscopy (XPS) and atomic force microscopy (AFM). Results indicated that the particle size of the latexes and the gel content of the films were both independent of the amount of OFPMA employed. On the other hand, the particle size of the latexes decreased and the gel content of the films increased with the incorporation of AA and HEA as expected. Glass transition temperature (T_g) and the thermal stability of the copolymer were both improved gradually as OFPMA content increased. XPS, AFM and water contact angle measurement indicated that the fluoroalkyl groups had a tendency to enrich on the surface of the films. However, this enrichment of fluorine on the film surface was reduced after the introduction of self-crosslinking functional monomers into the system. Finally, the adhesive property of the latexes was evaluated for application as a pressure sensitive adhesive (PSA).     

溶液型SBS压敏胶粘剂的研制

试验了SBS、溶剂、增粘树脂和软化剂品种以及用量不同对胶液性能的影响;通过试验确定了基础配方;并介绍了投放大生产后产品供用户使用情况。     

乳液型丙烯酸酯压敏胶粘剂剥离强度的研究

应用正交设计探讨了丙烯酸酯压敏胶粘剂的优化配方，考察了温度、反应时间和单体的滴加速度对共聚反应的影响，并分别用一定量的甲基丙烯酸甲酯、丙三醇和松香对胶粘剂进行了初步改性研究。     

四元共聚丙烯酸酯乳液压敏胶的合成研究

研究了以丙烯酸异辛酯(2-EHA)和丙烯酸丁酯(BA)为软单体.醋酸乙烯(VAc)和丙烯酸(AA)为共聚单体,通过预乳化法合成乳液丙烯酸酯压敏胶的工艺过程。得到的最佳工艺条件为单体质量组成2-EHA 62％,BA15％,VAc 15％.AA8％.复合乳化剂2％～4％,引发剂过硫酸铵0.6％.75～80℃,反应4h。     

溶剂型丙烯酸酯压敏胶的研究

采用自交联聚合工艺合成具有较好粘结性能和耐热性能的溶剂型丙烯酸酯压敏胶。通过分析测试 ,对影响压敏胶性能的一些因素 ,如单体比例、改性单体和交联剂的用量进行了研究     

顺-苯(M-S)型自交联乳液胶黏剂的研制

以顺丁烯二酸二丁酯 (马来酸双丁酯 )与苯乙烯为主单体 ,引入交联单体 ,采用核壳乳液聚合研制了自交联乳液胶黏剂 ,讨论了组成对胶黏剂性能的影响。     

The application research of environment-friendly reactive surfactants in acrylate emulsion pressure sensitive adhesives

In this article acrylate pressure sensitive adhesive (PSA) latexes were synthesized via a pre-emulsion seeded semi-batch emulsion polymerization process with a conventional nonreactive surfactant (CO-436) and two polymerizable surfactants (traditional surfmer SE-10N and environment-friendly surfmer SR-10). The effects of surfactant contents on the particle size, zeta potential, electrolyte stability of the latexes and gel content, sol molecular weight (M_w, M_n), water absorption of the PSA copolymers were investigated. In addition, X-ray photoelectron spectroscopy (XPS) and contact angle measurements were used to characterize the latex films. The results showed that the particle sizes of latexes prepared with surfmers were smaller than their CO-436 containing counterparts. And the latexes prepared with surfmers had a lower storage stability than the one prepared with CO-436. However, surfmers can improve the electrolyte stability of the latex. Furthermore, the water resistances of the latexes prepared with surfmers were better than that of the latex with CO-436, which can be confirmed by water absorption, contact angle and XPS analysis. The results also indicated that the PSA prepared with SR-10 exhibited the highest gel content among the three surfactants. Finally, the effects of surfactants on the adhesive properties of the PSAs were also evaluated.     

医用丙烯酸酯乳液压敏胶的研制

叙述了医用丙烯酸酯乳液压敏胶的合成与性能。并且讨论了软、硬单体配比,宫能单体含量及乳化剂用量等因素对压敏胶粘度、快粘力、持粘力、剥离强度等性能的影响。     

接枝型橡胶压敏胶带的研究

橡胶接技时应选择合适的弹性体和单体。当m(NR)：m(SBR)：m(CR)＝100：(30～50)：(8～12)；m(MMA)：m(BA)：m(官能单体I 官能单体Ⅱ)＝100：(20～30)：(8～12)时，较易接技且接技反应易于控制。接技工艺条件应随橡胶配比的变化而变化。选定配方的工艺条件为：单体分2次投料，反应温度为80～85℃，反应时间为2h。用萜烯树脂与少量低软化点的石油树脂以质量比100：(30～50)复配后作为增粘树属县有较好的增粘效果；用A、B2种交联剂可获得较好的耐温、耐溶剂性。