Sole material for insulating labor protection shoes

Abstract

The invention relates to a material for manufacturing a labor protection article, in particular to a sole material for insulating labor protection shoes with insulating protection function. The material comprises the following components in portion by weight: 26.2 to 31.2 portions of natural rubber, 26.2 to 30.2 portions of styrene-butadiene rubber, 0.93 to 1.02 portions of sulfur, 0.6 to 0.73 portion of accelerating agent DM, 0.18 to 0.22 portion of accelerating agent TMTD, 4 to 4.5 portions of zinc oxide, 20 to 22.5 portions of white carbon black, 14.3 to 15.2 portions of magnesium oxide, and 0.48 to 0.52 portion of stearic acid. The components of the material are mixed reasonably; and actual detections show that the leakage current of a sole product manufactured by adopting a componentformula of the material is smaller than 1.8 mA under the condition that the temperature is 20+/-5 DEG C, the relative humidity is less than 85 percent, the power frequency testing voltage is 20 kv andthe duration is 1 minute, and thus the material can meet high insulating use requirements.

Description

Technical field [0001] The invention relates to a material for manufacturing labor protection products, in particular to a sole material for insulating labor protection shoes with insulation protection function. Background technique [0002] The rubber soles of current insulated labor protection shoes generally have low insulation capabilities. Usually, under the conditions of a power frequency voltage of 20kv and a duration of 1min, the leakage current is greater than 1.8mA, which is difficult to meet the higher safety protection requirements. Summary of the invention [0003] The technical problem to be solved by the present invention is to provide a sole material for insulating labor protection shoes with strong insulating ability. [0004] The composition and weight ratio of the sole material of the insulated labor protection shoes of the present invention are: natural rubber 26.2-31.2 parts, styrene butadiene rubber 26.2-30.2 parts, sulfur 0.93-1.02 parts, accelerator DM0.6-0.7...

AI Technical Summary

Problems solved by technology

[0002] The rubber soles of existing insulated labor insurance shoes generally have low insulation capacity. Usually, under the condition of power frequency voltage 20kv and duration of 1min, the leakage current is greater than 1.8mA, which is difficult to meet the higher safety protection requirements.