Semi-conductive nylon strap for cable shielding and preparation method thereof

Abstract

The invention belongs to the technical field of materials and discloses a semi-conductive nylon strap for cable shielding. The semi-conductive nylon strap is prepared from the following raw materials in parts by weight: 40-80 parts of nylon 11 resin, 10-20 parts of nylon 1010 resin, 5-10 parts of nylon 6 resin, 10-20 parts of linear low density polyethylene, 8-16 parts of maleic anhydride grafted polyethylene, 0.6-0.8 part of a coupling agent, 18-25 parts of a filler, 0.4-0.6 parts of an antioxidant, 2-6 parts of a flame retardant, 10-15 parts of a conducting matter, 20-25 parts of reinforcing fibers and 10-18 parts of a surface modifier, wherein the ratio of the nylon 11 resin to the nylon 1010 resin to the nylon 6 resin to the linear low density polyethylene to the maleic anhydride grafted polyethylene is 8:2:1:2:1.6. The semi-conductive nylon strap disclosed by the invention has the beneficial technical effects of high tensile / bending / cantilever notch impact strength, small electric resistance, good high temperature stability, easy processing and the like, and is capable of eliminating static electricity.

Description

[0001] This application is a divisional application for an invention patent titled: A semi-conductive nylon tape for cable shielding and its manufacturing method, the application date is September 23, 2015, and the application number is: 2015106109445. technical field [0002] The invention belongs to the technical field of nylon materials, in particular to a semiconductive nylon tape for cable shielding and a manufacturing method thereof. Background technique [0003] Wire and cable, as the second pillar industry in the automobile industry in the national economy, has been paid more and more attention. In order to reduce the interference of external electromagnetic radiation and external electromagnetic waves to the internal conductor of the cable in the working state, it is usually necessary to set a shielding layer outside the conductor of the cable. The current shielding layer mainly has two types, one is all-metal medium, that is, steel strip Or aluminum strip or metal ...

AI Technical Summary

Problems solved by technology

At present, there are semi-conductive resistance water belts and semi-conductive Dotron belts. Due to their thick thickness, when used in cables, the cost of cables will increase. For example, if the thickness of a single layer increases by 0.05mm, the overall thickness will increase by 0.1 mm, because the diameter is accumulated, when it reaches the outermost layer of the cable, although it increases by 0.1mm, it may increase tens of kilograms of material, and the cost will increase by several hundred yuan; therefore, the industry expects to have thinner strips, and It can meet the requirements of electrical conductivity and tensile strength, which is convenient for coating and not easy to break during coating

[0004] In addition, after a long period of use, nylon products will generate static electricity on the surface, which will lead to the breakdown of the insulating layer or sheath of the cable when it reaches a certain level, causing circuit failure. Therefore, the current nylon conductive tape cannot be used in batches and stably.

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