| dc.description.abstract |
Progress in the industrial sector has progressed very rapidly. One of the fields that is experiencing development is Composite as materials. It is because composite materials have several advantages over metal base materials. Its advantages include being lighter, easier to shape, easier to manufacture, and stronger. Recently, the use of natural fibers as a composite base material is also increasingly in demand, for example is the use of Coconut Filter Fiber. This is because natural fiber materials are easy to obtain and do not cause pollution. In addition, the use of natural fibers as a composite base material is expected to reduce natural waste. This research was conducted using Coconut Filter Fiber (Cocos Veridis) as a composite base material. In the process of making composite materials, one of the stages that must be passed is the Curing process. This research analyzes composites that do not go through the curing process and some variations in curing time with a temperature of 60°C. The production of composite uses Unsaturated Polyester and a catalyst combined with Coconut Filter Fiber which has gone through the Alkalization process with a ratio of 25% Fiber and 75% Resin. The finished composite material then goes through impact test to calculate the ratio of the amount of energy absorption received. The result is that there is a difference that is not too significant. This is because the temperature received during the curing process is the same, which is 60ºC. The weakness composite is the one that did not get the curing process, which is only 0.173 Joules on average. While the strongest composite is the one that received a curing process for 3 hours, which is an average of 0.324 Joules.
Keyword: Composite, Coconut Filter Fiber, Impact test, Curing, Time variation.
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