PENGARUH WAKTU DAN PELEPASAN PECTIN TERHADAP BILANGAN KAPPA PADA PROSES PEMBUATAN PULP DARI AMPAS TEBU

Abstract

Indonesia is a large country, so the need for paper in Indonesia is also quite high at 349 tons per year. If you cannot balance the availability of raw materials with the need for paper, it will have a negative impact, namely uncontrolled deforestation which will damage the environment. The choice of bagasse waste as the basic material for making pulp is because bagasse has a high cellulose content of 61.96% and lignin of 22.45%. So that sugar cane bagasse can be used as a basic raw material for making pulp. This research was conducted to determine the effect of time and pectin release on the kappa number in the process of making pulp from sugarcane bagasse. Making pulp by washing the bagasse then drying it, then making a blank solution and in the pulping process the cooking solution used in the soda process is a NaOH solution. NaOH solution with mixed variations of 10%, 15%, 20%, 25%, 30% is put into a beaker until it weighs 20 grams, stirred thoroughly with a stirring time of 5 minutes, then heated with a heating time of 30, 60, 90, 120, 150 minutes and using a temperature of 120℃. Then the cooked bagasse is removed and cooled to room temperature, then the residue and filtrate are filtered, then the pulp is washed with distilled water. After that, the pulp is put in the oven until dry and then titrated. The highest lignin content was 1.8925% at a pulping time of 30 minutes with a NaOH concentration of 10%. Meanwhile, the lowest lignin content was 1.2688% at a pulping time of 150 minutes with a NaOH concentration of 30%