Abstract
We measured the friction forces and calculated the friction coefficients of non-processed and laser-processed High Strength gel surfaces. The results indicate that laser processing (finishing) has an ability to reduce the friction coefficients. The observation of gel surfaces suggests that the cause of friction reduction is change in roughness of gel surfaces due to laser processing. This finding is expected to lead us to further understanding of physicochemical properties of hydrogels.We showed the low-friction processing technique. We demonstrated that the laser processing has an ability to reduce the friction of hydrogel surfaces. The results of microscopic observations suggest that the cause of friction reduction is decrease in apparent contact area between hydrogel surface and glass ball. This technique may lead us to next step in the fields of physics, physical chemistry, and medical applications.
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