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Journal of Central European Agriculture, Vol.15 No.1 March 2014. -

The paper deals with the evaluation of the mechanical properties of the polyethylene foils such as the stress, strain, modulus of elasticity and stress and strain in the moment of breaking. The thin foils 50 mm which contained 91 % of polyethylene Bralen RA 2–63 and 9 % colored concentrate Maxithen were studied. Four sorts of foils were examined: Maxithen HP 1510 – white, Maxithen HP 231111 – yellow, Maxithen HP 533031 – blue and Maxithen HP 533 041 – violet. Longitudinal and transversal tensile properties were studied. The tensile behavior was monitored on the motorized test stand ANDILOG STENTOR 1000. The moduli of elasticity of longitudinal samples of polyethylene Bralen RA 2—63 foils achieved the values in the range from 222.73 MPa to 298.24 MPa and the transversal samples in the range 179.61 MPa to 270.41 MPa. The stress of longitudinal samples of polyethylene Bralen RA 2–63 foils in the moment of the rupture achieved the values in the range from 9.46 MPa to 13.33 MPa at the strain from 1.51 mm*mm–1 to 1.54 mm*mm–1 and the transversal samples in the range from 12.38 MPa to 15.54 MPa at the strain from 1.48 mm*mm–1 to 1.58 mm*mm–1.

polyethylene foil; stress; strain; tensile modulus of elasticity



Autor: Ľubomír KUBÍK - Stanislav Zeman -

Fuente: http://hrcak.srce.hr/



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