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为了更详细地说明沥青在岩石中的分布,必须在萤光显微镜下研究这些岩石的薄片和光片。通过镜下研究工作有可能使地质工作者更深刻地了解沥青与围岩的关系,追踪其运移痕迹。要开展萤光显微镜下的研究工作,选择薄片胶是一项很重要的问题,因为通常的加拿大树胶是发光的,不能用来制薄片。全苏石油地质勘探研究所曾试验了水玻璃,白明胶等胶合材料,其中以聚甲基丙烯酸丁酯胶最适用。T.A.伐拉诺娃也介绍了这种胶的配制方法。我们对这种胶的制备进行了初步的尝试,由于市售聚甲基丙烯酸丁酯往往是发光的,不能满足工作需要。我们自己使用了甲基丙烯酸丁酯在过氧化苯甲酰引发下进行本体聚合,制得聚甲基丙烯酸丁酯,将此聚合物溶于二甲苯中配成胶。此胶经四队实验室与本室初步使用,基本上能满足工作需要。
In order to explain the distribution of bitumen in rock in more detail, it is necessary to study the flakes and sheets of these rocks under a fluorescence microscope. Through the microscopic research, it is possible for geologists to better understand the relationship between asphalt and surrounding rock and trace the traces of its migration. To carry out research under fluorescent microscope, the choice of sheet glue is a very important issue, because the usual Canadian gum is shiny, can not be used to make the sheet. All-Russian Petroleum Geological Exploration Institute has tested the water glass, gelatin and other glue materials, including polybutyl methacrylate glue most suitable. T.A. Varanova also introduced the preparation of this glue. We have made preliminary attempts to prepare this glue, since commercially available polybutylmethacrylate tends to be shiny and fails to meet the needs of the job. We ourselves use butyl methacrylate in bulk polymerization initiated by benzoyl peroxide to produce polybutylmethacrylate. The polymer is dissolved in xylene to form a gel. This glue by the four teams of laboratory and the initial use of the room, basically to meet the needs of work.