J. Technology and Education, Vol.28, No.1, pp.37-42 (2021)

研究論文

滑り摩擦測定装置によるムチン懸濁液の潤滑能評価

 

田中 孝国¹*，大関 康生¹，矢島 夏海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 lubrication ability of the mucin suspension

using a sliding friction-measuring apparatus

 

Takakuni TANAKA，Kosei OZEKI，Natsumi YAJIMA，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 May 6, 2021; Accepted June 4, 2021)

 

Mucins are glycoproteins present in almost all animals and many microbes as the main component of mucus. Mucins have a friction-reduction role and are barriers to 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 from a simple inclination method using an inclined board made of various metals (copper, aluminum, stainless, titanium, galvanized iron), where the friction coefficient was defined by the angle at which a nitrile butadiene rubber began to slide down. The influence of setting metal board materials on friction property was also evaluated. [Note: Do you mean, “The influence of the various types of metals on the friction property…”?] 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 the wet properties to the surface of metals was shown in the mucin suspension.

Key words: mucin / friction / viscosity / inclination method