A composite material for preparing electromagnetic shielding conductive heat shrinkable tube

Abstract

The invention relates to a composite material for preparing an electromagnetic shielding conductive shrinkable tube. The composite material comprises the following raw materials in parts by weight: 90-100 parts of PVC (Polyvinyl Chloride) resin, 4-6 parts of MBS (Methyl Methacrylate) resin, 20-40 parts of metalized graphite powder, 2-4 parts of ACR modifier, 1-3 parts of CPE (Chlorinated Polyethylene), 7-9 parts of rare earth compound stabilizer, 0.4-0.6 part of stearic acid and 0.4-0.6 part of liquid paraffin. The prepared shrinkable tube mainly can serve as a joint, which is connected with a metal plug, of a shielding layer of a series of wires and cables such as audio / video signal lines, coaxial cables and radio frequency lines. The prepared shrinkable tube has an excellent conductive shielding effect, is simple in process flow, low in production cost and wide in applicability and has the advantages of light weight, corrosion resistance, low cost, copper conservation, energy consumption conservation and simple production equipment.

Description

technical field [0001] The invention relates to a composite material for preparing an electromagnetic shielding conductive heat-shrinkable tube, and the heat-shrinkable tube prepared therefrom can be widely used in the following ranges: [0002] 1. It is widely used in the connection of a series of wires and cables, such as audio and video signal lines, coaxial cables, radio frequency lines, etc., which use electromagnetic shielding composite materials as shielding layers, and metal plugs; [0003] 2. Widely used in anti-interference of various wire harnesses, solder joints, electronic components, anti-rust, anti-corrosion, anti-radiation, anti-interference and anti-static of metal pipes and rods; [0004] 3. It is widely used in the wiring of weak current cables, which can effectively prevent external electromagnetic interference, anti-corrosion, and anti-radiation; [0005] 4. It is used for the outer coating of various curtain rods, shower curtain rods, hanging rods, mop r...

AI Technical Summary

Problems solved by technology

[0007] The existing heat-shrinkable tube has a single function and is mainly used for insulation and protection of various items without electromagnetic shielding effect.

If a wire is broken, connect the wires manually and cover them with a heat shrink tube (the most common method), the following problems will appear: 1) The interface will be uneven, and the heat shrink tube is easy to break; 2) If the wire If there are multiple roots, then there will be one long and one short.

[0008] Due to the development of technology and the support of national policies, there are many conductive materials on the market, but it is difficult to connect the existing conductive materials with other conductive objects