PRELIMINARY STUDY OF MANUFACTURE AND CHARACTERIZATION MICROCRYSTALLINE CELLULOSE-BASED FROM ALGAE CLADOPHORA SP. AND DAMAR COATING FOR COLOSTOMY BAGS

• Main Author: Mentari Efendi, Balqis
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/70630
• Institution: Institut Teknologi Bandung

Colon cancer is one of the most malignant cancers in the world. Colon cancer can cause a patient to be unable to dispose of feces normally, so an ostomy procedure is necessary. The ostomy procedure will make the patient to have a bulge in the abdomen called a stoma. Feces will come out through the stoma and are collected in colostomy bags. Materials that are commonly used for colostomy bags are Polyvinyl Chloride (PVC), Low-density Polyethylene (LDPE), and Ethylene Vinyl Acetate (EVA), but these materials do not disintegrate in water and flushable, so the disposal process is impractical. To address this problem, in this study a preliminary study was carried out regarding the flushable colostomy bag. In this research, microcrystalline cellulose (MCC) was extracted from Cladophora algae. MCC material is obtained through alkalization, hydrolysis, bleaching, and dispersion. Then, it is made into algae paper (KA) by solution casting method with a grammage of 100 g/m2. Damar gum was made into a coating by dissolving in ethanol with a concentration of (w/w) 35% and (w/w) 50%. Afterwards, the KA was coated with damar coating, and the number of dips varied; one, two, and three dips. Based on the research results, it can be concluded that damar coating can increase the contact angle of KA by 45%. Coating layer do not increase tensile strength of KA significantly. However, it increases the wet tensile strength of KA by 25%. The more thickness on coating layer decrease, the less flushability of the KA by 6% for KA 35% 1, 40% for KA 35% 2, and 49% for KA 35% 3. At 50% damar coating, the level of flushability decreases by about 1-6%. Based on the test results, it can be concluded that KA coating has the potential to become an inner layer material for colostomy bags.