The article shows the possibility of applying a silicon dioxide coating on the carbon fiber by the sol-gel method. The evaluation of the protective properties of the obtained coatings at a temperature of 600 ° C is given; the changing of the a coated fiber surface morphology during the destruction process is shown for the first time. The destruction of the carbon fiber surface without coating begins at a soaking time of 120 min, which is accompanied by a significant decrease in the diameter of the fiber. The destruction of the coated carbon fiber surface begins at a soaking time of 360 minutes, the fiber diameter changes insignificantly. The paper shows that the sol-gel coatings slow down the oxidation of the carbon fiber more than 2 times.
This review systematizes and summarizes the available published data on the genesis, nature, and structure of organochlorine compounds (OCCs) detected in crude oil and petroleum products. The main aspects related to the sources of chloride formation in crude oil are discussed. It is demonstrated that the abnormal manifestations of OCCs in crude oil are associated with the artificial addition of chemicals that contain OCCs and/or their precursors as well as with the application of hydrochloric acid mixtures to intensify oil inflow.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.