Effect of chemical modification on slip resistance and mechanical properties of rubber
-
Ranganathan Mohan
,
Raja Sundaresan
Abstract
Shoe sole material, design, tread pattern and surface modifications influence slip resistance while walking and running. Thermoplastic styrene-butadine-styrene rubber, commercially known as TPR, is one of the materials widely used as shoe soles. This type of sole is subjected to chemical treatment known as halogenation to increase adhesion characteristic with the upper. The coefficient of friction (COF) is the ratio between the horizontal force and the vertical force when tested with the help of slip resistance test equipment SATRA STM 603. It is also known that footwear outsole surface modification affects COF at the footwear floor interfaces. In this study, plain TPR shoe sole samples were surface modified by treating with 2.0 wt% trichloroisocyanuric acid (TCI) in methyl ethyl ketone (MEK). The effect of surface modifications was studied by water contact angle measurements, Fourier transform infrared (FTIR) and X-ray photoelectron spectroscopy (XPS), surface roughness and scanning electron microscopy (SEM). The surface modified sole samples were also tested for other mechanical properties such as tensile strength, elongation at break, hardness and abrasion resistance to find out the extent of changes in those essential functional properties. It was observed that surface modification of TPR sole increased COF and reduced strength, elasticity and abrasion resistance properties. However, there was no significant change in hardness.
Acknowledgments
The authors thank the Council of Scientific and Industrial Research, Government of India for providing project funds for this study under STRAIT Project of Central Leather Research Institute (CLRI).
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Articles in the same Issue
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Articles in the same Issue
- Frontmatter
- Original articles
- Yield analysis of copolymers: effect of temperature, feed ratio and initiator concentration on the copolymerization
- Polymerization of 1,3-butadiene with neodymium chloride tripentanolate/triisobutylaluminum binary catalyst system: effect of aging time and reaction temperature
- Preparation and surface modification of Mg(OH)2/siloxane nanocomposite flame retardant
- Effect of chemical modification on slip resistance and mechanical properties of rubber
- Effect of curing temperature and layering pattern on performance studies: a novel hybrid composite
- Characterization of ultrasound-treated oil palm empty fruit bunch-glass fiber-recycled polypropylene hybrid composites
- Ultraviolet or atomic irradiation effect on the polyimide composite lubricating coating
- Nano and microstructures of SEBS/PP/wax blend membranes: SAXS and WAXS analyses
- Effects of added phthalate plasticizers on photodegradation of irradiated poly (α-methylstyrene) films
- Amino acids and poly(amino acids) as nucleating agents for poly(lactic acid)
- Nanostructural characterization of poly (vinylidene fluoride)-clay nanocomposites prepared by a one-step reactive extrusion process
- The extrusion of plasticized poly(vinyl chloride) in an extruder with a modified feed zone. Part 1: extrusion process
