Title An investigation of surface properties and composition of HDPE and recycled HDPE with additives /
Translation of Title HDPE ir perdirbto HDPE plėvelių su priedais paviršinių savybių bei plėvelių sudėties tyrimai.
Authors Patil, Bhagyalaxmi Shivangouda
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Pages 60
Keywords [eng] HDPE and recycled HDPE ; wetting angle ; ink adhesion ; FTIR analysis ; SEM images
Abstract [eng] Plastics have become an essential and inseparable part of human life. High-Density Polyethylene plastics are most commonly used plastics globally because of its properties like density, long life, designs, strength and mainly the low cost. HDPE plastics are non-biodegradable plastics that take centuries to decompose, recycling of plastics is necessary. There are many benefits of recycling of plastics such as it reduces landfill waste and it takes less cost to produce recycled plastics than virgin plastics. Recycling of plastics comes with several concerns for the manufacturers, it is necessary to meet the properties of virgin materials. This research is focused on HDPE and recycled HDPE films with different concentration of additives (metallocene) and to check the influence of additive materials to the properties. Contact angle measurement was done for all the materials to understand the surface wettability property, HDPE materials contact angle for printing sides is around 28° to 33° and non-printing sides is 39° to 51°and for RHDPE materials contact angle for printing sides is around 29° to 37° and non-printing sides is 40° to 44°. Ink adhesion test was performed in two ways one with the measured force and other manually, the force at which there is a deformation of ink is seen. It is necessary to understand the composition of the materials especially for recycled HDPE as it should meet the composition of virgin HDPE, so FTIR spectroscopy was carried out on all the materials in which all the materials showed same compositions as HDPE. Mechanical properties of the materials are of great concern especially of recycled HDPE because with the different concentration of additives materials might show different strength properties with this concern Tensile test was carried out to understand the force, strength and elongation of the materials.
Dissertation Institution Kauno technologijos universitetas.
Type Master thesis
Language English
Publication date 2020