Fireproof filling material used for special cable and preparation method thereof

Abstract

The invention discloses a fireproof filling material used for a special cable, and relates to the technical field of cable processing. The fireproof filling material is prepared from the following raw materials in parts by weight: 50-60 parts of sandy soil, 20-30 parts of cordierite powder, 20-30 parts of mullite powder, 10-20 parts of asbestos powder, 10-20 parts of calcium carbonate, 10-20 parts of perlite, 20-30 parts of titanium dioxide, 15-25 parts of polyvinyl chloride, 13-15 parts of chlorinated rubber, 15-25 parts of phenolic resin, 15-25 parts of chlorinated paraffin, 10-20 parts of tributyl phosphate, 5-7 parts of zinc borate, 6-8 parts of aluminium borate, and 8-10 parts of a lubricant. The fireproof filling material has the benefits that the technological process is simple, the proportion of the raw materials is reasonable, the preparation method is simple, a high-quality filling agent is provided for the cable, the raw materials are easy to obtain, high temperature resistance is achieved, a certain flame retardancy is achieved, safety accidents caused by overhigh temperature of a cable core are avoided, the use effect is obvious, the reasonable use of the special cable is guaranteed.

Description

technical field [0001] The invention relates to the technical field of cable processing, in particular to a fireproof filler for special cables and a preparation method thereof. Background technique [0002] The wire and cable industry is the second largest industry in China after the automobile industry, and the product variety satisfaction rate and domestic market share both exceed 90%. Worldwide, China's wire and cable output has surpassed that of the United States, becoming the world's largest producer of wire and cable. With the rapid development of China's wire and cable industry, the number of new enterprises has been increasing, and the overall technical level of the industry has been greatly improved. The continuous and rapid growth of China's economy has provided a huge market space for cable products. The strong temptation of the Chinese market has made the world focus on the Chinese market. In just a few decades of reform and opening up, China's cable manufactur...

AI Technical Summary

Problems solved by technology

[0003] The cable mainly consists of the inner cable core and the sheath covering the cable core. Since there will be a lot of gaps between the cable core and the sheath of a normal cable, if such gaps are not filled in time, it will be very large. To a certain extent, it will affect the overall strength of the cable. At this stage, people deal with this kind of problem by adding fillers inside. However, in actual use, because the choice of fillers is not ideal, not only the strength of the cable cannot be guaranteed, it may be It will also cause other hazards. For example, when some special cables are in use, there will be a lot of waste heat inside the cable core. If the fillers are not selected properly, the waste heat will destroy the fillers, and even cause fires and dangers.