Anti-crocking rubber sole

Abstract

The invention discloses an anti-crocking rubber sole and relates to a rubber sole. The invention provides the anti-crocking rubber sole with low production cost, long service life, ageing resistance and no crocking and a method for manufacturing the same. Raw materials comprise A and B; the raw material A comprises 72.9 percent of cis-1,4-polybutadiene rubber, 20.2 percent of caoutchouc, 6.9 percent of styrene-butadiene rubber, 44.5 percent of precipitated hydrated silicon dioxide, 0.8 percent of bi-(3- propyl triethoxysilane)- tetrasulfide, 5.3 percent of zinc oxide, 3.5 to 4.5 percent of polyethylene glycol, 1.0 to 2.0 percent of stearic acid, 1.1 percent of rubber viscosity increaser, 0.8 percent of activating agent, 0.3 to 0.6 percent of phenolic antioxidant, 0.4 percent of tackifying resin and 1.0 percent of antifogging agent; the raw material B comprises insoluble sulfur, tetramethylthiuram monosulfide and an accelerant; and the ratio of the A to the insoluble sulfur to the tetramethylthiuram monosulfide to the accelerant is 500 : 1.0-2.5 :1.0 : 0.7. The anti-crocking rubber sole is prepared by banburying, mill opening, sulfur treatment, measurement of a vulcanizing curve, oil pressure molding and a crocking test.

Description

technical field [0001] The invention relates to a rubber sole, in particular to a production formula for a spray-out-proof rubber sole. Background technique [0002] China is currently the world's largest producer and exporter of footwear. However, the problem of frequent frosting on rubber soles has become one of the limiting factors for China's footwear industry at present, and frosting also has a certain seasonality. In summer and autumn, Blooming problems are more likely to occur. Frosting on the rubber surface not only seriously affects the appearance quality of the product, but also affects the service performance and life of the rubber product to a certain extent, and also affects the process performance and physical and mechanical properties of the rubber compound. Frosting will also cause scorching of the rubber material and aging of the product, which will accelerate the aging of the product and shorten the service life. The harm of blooming frost brings huge eco...

AI Technical Summary

Problems solved by technology

[0007] (2) Improper process operation

[0009] (3) Raw material quality fluctuations

[0011] (4) Rubber aging

[0016] Although the above-mentioned patent documents have done appropriate research on the anti-blooming of some materials, due to the large differences...

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