Flame-retardant and fire-resistant cable insulation rubber for ships and production method therefor

Abstract

The invention discloses a flame-retardant and fire-resistant cable insulation rubber for ships and a production method therefor. The raw materials are 20 parts of ethylene propylene diene monomer rubber 4045M, 0.5-0.6 part of vulcanizing agent DCP, 0.2-0.3 part of co-vulcanization agent TAC, 0.1-0.3 part of anti-aging agent MB, 0.1-0.3 part of anti-aging agent RD, 0.1-0.2 part of coupling agent A-172, 15-20 parts of aluminum hydroxide, 3-6 parts of ceramic glass powder, 1-1.5 parts of plasticizer No 1000 steam cylinder oil, 6-8 parts of fine talcum powder, 4-7 parts of reinforcing agent hydrated silica, and 5-8 parts of reinforcing agent calcined pottery clay. First, ethylene propylene diene monomer rubber 4045M is subjected to mixing for 1-1.5min, then the anti-aging agents, the coupling agent, aluminum hydroxide, the ceramic glass powder, the plasticizer, talcum powder and the reinforcing agents are added in order and after the above mixture is subjected to mixing for 7-8min, the mixture is unloaded and aired for above 24h; then the above rubber material is subjected to 2-3min, and the vulcanizing agent and the co-vulcanization agent are added in the last 20 seconds, the material after mixing is loaded in an open mill for thin-pass, after triangular packaging and square packaging are performed, sheets are obtained. The insulation rubber has simple production technology, low cost, small external diameter and light weight, is flexible and easy to bend, and is convenient for construction and installation.

Description

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AI Technical Summary

Benefits of technology

This patented method involves adding certain chemical components like antioxidants, stabilizers, lubricating materials such as alkali soluble salts, pigments, dyes, etc., into the dielectrics containing vinyl chloride resin without affecting them' ability to resist combustion gases. These chemically reactive ingredients help create strong adhesives between layers inside the electric cord core layer, resulting in improved cohabitation force and flexibility. Additionally, these chemical compositions act synergisticly when mixed with calcium oxides to further promote thermal conduction within the rubbers themselves while also acting as a solid electrode catalyst to initiate curative formation. Overall, this approach provides technical benefits including reduced costs associated with producing fuel cells due to less harmful emissions produced upon incineration compared to traditional methods involving large amounts of zinc percussion black lead salt.

Problems solved by technology

This patented technical problem addressed in this patents relates to improving fire resistive cables made up mostly of multiple layers of different materials for better durability without adding too much weight or complexity during fabrication processes. Additionally, these cables require specialized tools like weld guns due to their complex construction requiring long lead times and costs associated therewith.

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