Manufacturing Technology 2018, 18(6):986-991 | DOI: 10.21062/ujep/212.2018/a/1213-2489/MT/18/6/986

Evaluation of an Efficient Modulus in the Biopolymer String Tension

Vladimír Pata¹, Oldřich Šuba¹, Libuše Sýkorová¹, Milena Kubišová¹, Lenka Hýlová¹, Martina Černeková^2,*

¹ Tomas Bata University in Zlín, Faculty of Technology, Department of Production Engineering, Vavrečkova 275 760 01 Zlín, Czech Republic

² Tomas Bata University in Zlín, Faculty of Technology, Department of Fat, Surfactant and Cosmetics Technology, Vavrečkova 275 760 01 Zlín, Czech Republic

Application of biopolymer materials is currently a rising trend. However, many problems are often encountered when evaluating and describing their mechanical properties. The present article will describe a procedure for finding a so-called effective modulus of elasticity of a biopolymer material having the shape of a thin string with a diameter of about 100 μm.
Subsequently, there are not only problems in the actual evaluation of the tensile test (which will be demonstrated by the assembled 3D model), but also when the sample is sampled, which is decisive for finding an efficient module. The article will deal with the methodology of sample squeezing into the specially developed product, the determination of an elastic modulus from the tensile test and the behaviour of the sample when the strength limit is exceeded, which will be captured and subsequently evaluated by the high-speed camera system.

Keywords: biopolymer fibre, keratin, statistical evaluation, tensile strength

Published: December 1, 2018  Show citation