材料工程Issue(1)：77-82,88,7.
脲醛树脂包覆α-烯烃减阻聚合物微胶囊的制备与性能
Preparation and Properties of Microcapsules Containing α-olefin Drag Reducing Polymer with Poly (Urea-formaldehyde) as Shell Material
摘要
Abstract
On basis of reaction theory of urea and formaldehyde which were used as microcapsule shell materials, preparation technology of microcapsules containing α-olefin drag reducing polymer was studied by using in situ polymerization method with urea and formaldehyde as shell materials. Preparation, storage stability and dissolving property of microcapsules were studied by using particle analyzer, FT-IR, simultaneous thermal analyzer and simulation circular oil evaluation system of drag reducing rate and so on. The results show that, when microcapsules containing a-olefin drag reducing polymer are prepared by in situ polymerization of urea and formaldehyde in acidic conditions, the preparation technology has properties that reaction implements in mild conditions, polycondensation is easily held and the reaction accomplishes quickly. The particle size distribution of microcapsules containing α-olefin drag reducing polymer with poly (urea-formaldehyde) as shell material concentrates on 200fzm. Microcapsules can keep condition of smooth small balls for long time and have excellent ther-modynamic stability. The results of unti-static pressure storage stability and thermodynamic stability show that, microcapsules meet the qualifications of storage stability. Microcapsules containing α-olefin drag reducing polymer with poly (urea-formaldehyde) as shell material have excellent dissolving property in oil. The drag reducing rates of microcapsules containing α-olefin drag reducing polymer with poly (urea-formaldehyde) as shell material and uncoated α-olefin drag reducing polymer particles are similar. Though there is some time delay in drag reducing rate to microcapsules contrasted with uncoated particles, the peak value of drag reducing rate is equivalent, and meets the standard of practical in situ engineering application.关键词
脲醛树脂/微胶囊/α-烯烃减阻聚合物/颗粒/储存稳定性/溶解性Key words
poly (urea-formaldehyde)/ microcapsule/ α-olefin drag reducing polymer/ particle/ storage stability/ dissolving property分类
通用工业技术引用本文复制引用
李冰,于萍,代晓东,邢文国,董桂霖,周宁宁,秦占波,张长桥..脲醛树脂包覆α-烯烃减阻聚合物微胶囊的制备与性能[J].材料工程,2012,(1):77-82,88,7.基金项目
国家重点基础研究发展计划(973计划)(2008CB617508) （973计划）
