STUDY OF THE USE OF POWER GLASS FROM RECYCLED BOTTLES REINFORCED IN EPOXY RESIN FOR THERMAL MOLDING

Abstract

The objective of this paper is to study the use of glass powder from recycled bottles reinforced with epoxy resin. In the beginning to study the process and working principle of the heat forming in thermoforming mold and build a master model from super lean cubes. The cast resin into a thermoforming mold with breaking the cleaned glass bottles and breaking or crushed into small pieces to use as a mixture of the master model. The cast mold of epoxy resin mixed with glass, ratio 50:50, 60:40 and 70:30 to create a master model to put in a block made of aluminum sheet. Finally, produce the plastic container by vacuum from the mold master model.

The results of research that the structural inspection of molded specimens show that there are bubbles spread between the epoxy resin and the glass powder in the mold. Various ratios in which the distribution of the glass powder and air bubbles affects the hardness of the workpiece. The molds using a mixture ratio of epoxy resin and glass powder at 60:40 will have a hardness that is consistent. In each layer, the depth will have a maximum hardness at 67.54 HRB. After that, the mold using the ratio of epoxy resin and glass powder at 50:50 60:40 and 70:30 will be molded to make PET plastic at temperature of Forming between 120 - 140 degrees Celsius. The result of

research, found that all 3 thicknesses at 130 degree celsius have a slightly higher density than other temperatures and when testing the expansion of the mold, it is found that the mold with the mixtures ratio of epoxy resin and powder glass at 50:50 is suitable to be used the most Due to the lowest growth from all With the highest expansion at 0.31% width and the maximum expansion between holes is 0.21%