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이정치,박형련,김명선,이정길,이채용 한국임상수의학회 2005 한국임상수의학회지 Vol.22 No.2
This study was carried out to investigate the physical and chemical properties of teat cup liners. The hardness of the liners was 50~67, and their fatigue to failure 38~1,185cycles. The elongation and tensile strength of these liners were about 134kgf/cm2 and 473%, respectively. The infrared spectrum and the gas chromatogram revealed that the liner A was consisted of NR, SBR, and BR, with a composition ratio of 60:20:20 (part per hundred rubber). The raw rubber materials used for liners B to G, on the other hand, were NBR only. However, the liner H was made of silicon rubber. The thermogravimetric analysis showed that the liners tested in this study contained raw rubber material, carbon black, organic compounds and metallic compounds.