Abstract:
This research aims to study and develop materials for using as the shoes sole material to
the coefficient of friction (COF) to reduce the risk of slip of the workers in various industries.
The coefficient of friction measurement machine was designed and constructed to evaluate the coefficient of friction of shoes sole according to ISO 13287:2007 standard. The fix weight is used as the compressive force source. To control the accuracy and precision of measurements, all experiments were conducted at same amount of filled contaminant on measured floor and time. Therefore, Analyzing to find better COF of shoes sole material with Acrylonitrile-butadiene synthetic rubber to develop a tire that has a better COF compare with other types of materials. The developing adds Phenolic resin and Silicon dioxide (E-10HD) into traditional ingredients of rubber content 7-15% by increasing the COF of the material. The rubber will be developed to test the mechanical properties, and then to measure the COF. The COF were tested using ANOVA test (One-way ANOVA) to determine the proportion at best. The test showed that synthetic rubber mixed with phenolic resin, 14% by weight with a better COF. For comparing the COF
of Acrylonitrile-butadiene synthetic rubber which it can be concluded that the case is ceramic
and the glycerol is contaminant, the COF is increased to 133.33 percent, the friction coefficient increased 80 percent when using the stainless steel and glycerol into the contaminant, the coefficient of friction increased 167.67 percent on the test surface is stainless steel and sodium lauryl sulfate is a contaminant, and the coefficient of friction increased 130.77 percent of the rubber compound was developed in this research is used as a material for soles with a safety coefficient of friction increases. Therefore, the safety-shoes can be made the material without changing process.