J. Technology and Education, Vol.29, No.1, pp.13-16 (2022)
研究論文
滑り摩擦測定装置を用いた高分子板上における
ムチン懸濁液の潤滑特性の評価
田中 孝国1*，小川 知輝1，酒井 洋1，大岡
久子2，桑原 敬司3，那須
裕規4
1小山工業高等専門学校 物質工学科 (〒323-0806 小山市中久喜771)
*tanakatakakuni@oyama-ct.ac.jp
2群馬工業高等専門学校 物質工学科 (〒371-8530 群馬県前橋市鳥羽町 580)
3長岡技術科学大学 生物機能工学専攻 (〒940-2188 新潟県長岡市上富岡町1603-1)
4小山工業高等専門学校 機械工学科 (〒323-0806 小山市中久喜771)
Evaluation of the lubricating
ability of a mucin suspension on a polymer board
using a sliding friction-measuring
apparatus
Takakuni
TANAKA，Tomoki
OGAWA，Hiroshi
SAKAI，Hisako
OOKA，
Takashi
KUWAHARA and Yuki NASU
National
Institute of Technology, Oyama College
(771
Nakakuki, Oyama City,
Tochigi Prefecture 323-0806, JAPAN)
National
Institute of Technology, Gunma College
(580
Toriba, Maebashi, Gunma, 371-8530 Japan)
Nagaoka
University of Technology, Department of Bioengineering
(1603-1
Kamitomioka, Nagaoka, Niigata 940-2188, JAPAN)
(Received March 29, 2022; Accepted May
9, 2022)
Mucins are glycoproteins present in almost all
animals and many microbes as the main component of mucus. Mucins play a role in
friction reduction, impact resistance, and defense against the invasion of
pathogens into epithelial cells. The sliding friction of rubber-covered nitrile
butadiene was measured as an experimental model for evaluating the friction
properties of a mucin suspension. Their starting friction coefficients were
obtained by using a simple inclination method with an inclined board made of
various polymer boards (acrylic, polyethylene board, polystyrene, polyethylene
terephthalate, polycarbonate board, polyvinyl alcohol, polypropylene), where
the friction coefficient was defined by the angle at which nitrile butadiene
rubber began to slide down. The influence of setting polymer board materials on
friction property was also evaluated. The obtained data were treated
statistically. Marked differences in friction were found depending on the
concentration of mucin suspension. By measuring the contact angle, the addition
of wet properties to the surface of polymers was shown in the mucin suspension
like an example of metals.
Key words: mucin /
friction / viscosity / inclination method / polymer board