Reduction of surface friction of natural rubber film coated with PMMA particle: Effect of particle size

Abstract

The friction coefficient of the sulphurprevulcanized natural rubber (SPNR) film could be effectively reduced by deposition of poly(methyl methacrylate) (PMMA) particles. The nanoscale surface roughness of rubber, determined by atomic force microscope, was directly proportional to the particle size of PMMA particle at 12% surface coverage (Cs). The %Cs and surface roughness of the modified SPNR increased, while the friction coefficient decreased, with increasing PMMA latex concentration and immersion time. By using a mixture of latexes having both large and small sizes, the increase in the amount of small particles resulted in the better distribution of large particles deposited on the rubber surface.

Physico‐mechanical properties of natural rubber sheets coated by polyethyleneimine‐functionalized poly(methyl methacrylate) nanoparticles

“…The decrease of coefficient of friction clarified that the presence of PMMA/PEI nanoparticles on the SPNR surface would potentially reduce the friction force of the rubber sheet. Anancharungsuk et al 18 found that the friction coefficient of SPNR-g-PAAm sheets coated with lean PMMA particles decreased with the size of PMMA particles and C s values. At 626 nm of PMMA particles and the C s value of 36.4%, the friction coefficient can be reduced to $ 1.2 or 45% reduction.…”

Enhanced antibacterial activity of NR latex gloves with raspberry-like PMMA-N,N,N-trimethyl chitosan particles

“…S6(c)). Small size of PMMA-SiNPs(TMC) (435 nm) facilitated fast diffusion of particles towards SPNR surface [34] and, hence, the longer the immersion time the higher the Cs values.…”

Micromechanical modeling of large deformation in sepiolite reinforced rubber sealing composites under transverse tension

“…The fiber distribution within the second RVE is generated using the random sequential adsorption algorithm , which ensures a random and homogeneous distribution of the sepiolite fibers. The diameter d of fiber is 0.1 μm .…”

“…It is assumed that the RVE is periodic and thus the microstructure of either material can be obtained by translating the square RVE along horizontal and vertical directions. The fiber distribution within the second RVE is generated using the random sequential adsorption algorithm [22][23][24], which ensures a random and homogeneous distribution of the sepiolite fibers. The diameter d of fiber is 0.1 lm [25,26].…”