Physicochemical aspects of manufacture of three-phase colloidal fuels

The basic physicochemical characteristics of fabrication of three-phase colloidal fuels were analyzed. The effect of the nature and content of solid and liquid phases, type of chemical additives (plasticizers, emulsifiers, and stabilizers), and the basic methods of obtaining three-phase systems from bituminous coals and brown coals were examined. __________ Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 1, pp. 52–56, January–February, 2007.     

EPE乳化剂在乳胶基质制备中的应用研究

为探究EPE乳化剂在乳胶基质制备中的应用,按照现场生产工艺,采用EPE乳化剂制备乳胶基质,通过各项性能测试和现场装药爆破,其稳定储存期超一个月,储存稳定性好;高速离心60 min、浸泡15 d、往复泵送6次、颠簸50 h后基质状态良好,无析晶、破乳现象,表现出良好的高速离心稳定性、抗水性、耐泵送性、抗颠簸性;现场装药爆...     

壳核乳液聚合制备ASA树脂探索实验

利用壳核乳液聚合法制备ASA树脂,考察了不同壳核结构、接枝单体配比、交联剂、引发剂对聚合反应及树脂性能的影响。     

聚乙烯蜡乳液钻井液的制备及性能研究

文章以水为分散介质制备聚乙烯蜡乳液,将其加入钻井液体系中,对聚乙烯蜡乳液钻井液的性能进行研究。首先利用马尔文激光粒度仪分析了当含水率为58.5%、HLB为10.5、乳化剂为25%、搅拌速度为1 250 r/min条件下制备的乳液粒径较小(2μm~8μm)、稳定性高。再将制备好的乳液加入钻井液体系中,通过对密度、黏度、失水量和泥饼厚度的测定,发现加入聚乙烯蜡后钻井液密度基本没有变化,但其降失水性增加、动切力减小,流变性明显提高,且形成的泥饼薄而致密可稳定井壁,防止坍塌。又因聚乙烯蜡具有润滑性,可润滑钻头,减小阻力。其分散性有利于悬浮岩屑,降低岩屑沉降速度。研究结果说明了该新型钻井液具有润滑钻头、悬浮岩屑、稳定井壁和保护储层的作用。     

Tribochemistry of jet fuels

Conclusions In the rolling friction of metals in fuel media, inorganic and organic products are formed on the surface.The inorganic products consist of oxides, sulfides, carbides, and other complex compounds; the functional composition of the organic products is characterized by the presence of groups pertaining to oxygen-containing heterocyclic compounds. The organic compounds formed on the frictional surface may acquire a crystalline structure.Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 9, pp. 45–49, September, 1972.