Shielding braided sheath for anti-electromagnetic cable used in spaceflight and aviation, and preparation method thereof

Abstract

The invention discloses a shielding braided sheath for an anti-electromagnetic cable used in spaceflight and aviation, and a preparation method thereof. The sheath is prepared by braiding a plurality of intertwisted wire jackets. The wire jackets are prepared through the following steps: 1) subjecting polytetrafluoroethylene resin, styrene butadiene rubber, butadiene rubber, ethyl acetate, toluene, dibutyl phthalate and styrene to primary kneading so as to obtain a mixture M1; 2) adding nanometer titanium oxide, manganic oxide, molybdenum sulfide, pentlandite, brass powder, aluminum powder, talcum powder, carbon black, inositol hexaphosphate, epoxidized triglyceride, citrate and a sulfuration promoter TMTD into the mixture M1 and carrying out secondary kneading so as to obtain a mixture M2; and 3) and subjecting the mixture M2 to extrusion granulation and processing and carrying out braiding so as to obtain the shielding braided sheath for the anti-electromagnetic cable used in spaceflight and aviation. The sheath prepared in the invention has better shielding properties, so the service life of the cable used in the field of aviation and spaceflight can be substantially prolonged.

Description

technical field [0001] The invention relates to the field of cable sheath materials, in particular to an anti-electromagnetic cable shielding braided sheath for aerospace and a preparation method thereof. Background technique [0002] As an important shielding material, cable sheath is widely used in daily production and is also widely used in many fields, for example, in aerospace and other fields. Of course, due to the use in the aerospace field, the requirements for the cable sheath will be higher. Therefore, when the ordinary cable sheath is used in the aerospace field, there will often be problems such as reduced service life, which will greatly increase its use cost. And once it is applied in the aerospace field, the replacement becomes extremely complicated and unfavorable. [0003] Therefore, it is an urgent need to solve the problem of the present invention to provide a kind of shielding braided sheath with better shielding performance, which can still have better ...

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned prior art, the purpose of the present invention is to overcome the anti-electromagnetic cable shielding braided sheath used in aerospace in the prior art. Often when used in the aerospace field, due to the particularity of the use environment, the use of the cable sheath The service life is greatly reduced, thereby increasing the cost of use, and it is often very inconvenient to replace in the aerospace field, so as to provide a better shielding performance, so that it can still have a good service life in the aerospace field Anti-electromagnetic cable shielding braided sheath for aerospace