浅析公路养护中乳化沥青应用

本文叙述了公路养护中乳化沥青应用。     

乳化沥青厂拌冷再生技术在某高速公路维修中的应用

阐述了厂拌冷再生技术从设计、施工到质量评定和性能观测等一系列内容。事实证明冷再生混合料具有较高的力学性能,完全能够满足高等级路面上基层的性能要求。     

软膏剂制备的发展概述

针对软膏剂的制备、基质及药物加入方法等进行了综述。     

Preparation and evaluation of microcapsule containing volatile oil of Herba Schizonepetae by emulsion solvent diffusion method

Microcapsules of volatile oil containing Herba Schizonepetae(VOHS) were prepared by emulsion solvent diffusion method to improve the drug loading and reduce the amount of pharmaceutical excipients.Orthogonal assay was applied to optimize the preparation condition of microcapsulation,and the results illustrated that the ratio of ethyl cellulose(EC) to VOHS influenced the property of VOHS microcapsule significantly.GC-MS analysis indicated that some volatile components with low concentration in VOHS were lost after microencapsulation.The microcapsules prepared with optimum condition had good fluidity,and the holes on the surface of the microcapsules contributed to the release of VOHS.The particles of the microcapsule conformed to a normal distribution with the diameter of 45—220 μm.In the simulated intestinal fluid containing 0.2% sodium dodecyl sulfate,pulegone in VOHS microcapsule showed a certain degree of slow release.Compared with β-cyclodextrin method,the microencapsulation used in the present work could reduce the amount of excipients and increase the drug loading.It was beneficial to reduce the dose of Chinese medicines containing volatile oils.     

外相材料对乳化炸药质量的影响

乳化炸药是氧化剂溶液微细的液滴为分散相似矿物油类可燃物质为连续相,借助于乳化剂的作用而形成的一种油包水(W/O)乳胶体,即构成了新型的工业炸药。     

乳化沥青在道路养护中的应用

阐明了乳化沥青的优点及经济性，重点介绍了几种养护方法。     

乳化沥青在道路养护中的应用

本文先阐述了乳化沥青自身的特性及优点,并详细说明乳液的生产、乳液的配方、乳液的各种撒布和乳液道路养护中的应用情况.     

动压作用下乳化炸药的微观实验

利用SEM 观察了敏化剂为玻璃微球的乳化炸药受动压作用前后的微观结构,发现受压后的乳化炸药发生破乳;分析了受压距离与乳化炸药破乳程度之间的关系;研究得出：当乳化炸药受到不变的动压作用时,其破乳程度是随着受压距离的增大而减小,因此,在爆破实践中适当提高炮孔间距,可改善乳化炸药的破乳情况,从而保持乳化炸药爆轰性能的稳定。     

抗原-弗氏佐剂乳化实验技术的改进与技巧

介绍了一种抗原-弗氏佐剂乳化方法和操作技巧,并验证其实验效果。以自制电动佐剂搅拌器和注射器协同乳化BSA-弗氏佐剂混合物,滴水实验和离心实验检测乳化效果。电动佐剂搅拌器和注射器协同乳化法可在5～10 min内快速乳化抗原,乳化物在水中呈不扩散的油包水状;乳化液以5 000r/min离心5min,未见分层现象。与传统乳化方法相比,电动佐剂搅拌器和注射器协同乳化法具有乳化速度快、效率高、不浪费抗原、免疫效果好等特点,值得推广使用。