Boric oxide fibre moisture-proof coating material and method of manufacturing the same

Abstract

The invention relates to a boric oxide fiber damp-proof coating material and the production method thereof, and belongs to the technical field of special ceramic. The invention comprises the steps as follows: liquid paraffin and paradichlorobenzene are mixed in the ratio of 100ml: (5 to 30) g. The liquid paraffin is mixed with the paradichlorobenzene to be heated and mixed by a magnetism mixing device with the heating temperature of 40 to 80 DEG C till the paradichlorobenzene unfreezes completely and the solution is cooled to the room temperature, then the damp-proof coating material for the boric oxide fiber is obtained. The coating material of the invention has the functions of drawing lubrication, and preventing the boric oxide fiber from pulverization. The material is coated at the surface of the front boric oxide fiber and can form a layer of thick protective films at the boric oxide fiber surface, and separates the corrosion of water to the boric oxide fiber, improves the intensity of the boric oxide fiber obviously, thereby improving the integrative performance of the boric oxide fiber and having good basis for research of the fiber reinforcing ceramics composite material. The invention which has simple and reasonable production method is convenient and practical.

Description

technical field [0001] The invention relates to a boron oxide fiber moisture-proof coating material and a preparation method thereof, belonging to the technical field of special ceramics. Background technique [0002] As a new type of inorganic material, high-performance boron nitride fiber, whose comprehensive properties determine the excellent performance of composite materials reinforced with it, occupies an indispensable and important position in the fields of aviation, aerospace and missile weapon technology. In China, the preparation method of boron nitride fiber is mainly by inorganic chemical conversion method. Firstly, boric acid is melted into glass body, and then boron oxide fiber is drawn by wire drawing furnace. After low temperature and high temperature nitriding, boron oxide fiber is converted into nitride Boron fiber. Because the boron oxide fiber is very easy to absorb moisture and pulverize, which affects the comprehensive performance of the boron nitride ...

AI Technical Summary

Problems solved by technology

At present, there are no reports at home and abroad on the moisture-proof coating applied to boron oxide fibers, and the coating materials used for other inorganic fibers, such as glass fibers and carbon fibers, are not suitable for boron oxide fibers.