EXPLORATION OF CASSAVA STARCH-BASED BIOPLASTICS WITH BEADING TECHNIQUE AS ART JEWELRY

• Main Author: Dhiya Sudjana Mihardja, Salima
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/82416
• Institution: Institut Teknologi Bandung

According to data from the Organization for Economic Cooperation and Development (OECD), global plastic waste production in 2023 exceeds 390 million tons, while Indonesia alone produces around 7.8 million tons of plastic waste annually with most of it used for packaging and textiles. This has increased awareness of the environmental impact and driven demand for environmentally friendly alternative materials such as bioplastics. Bioplastics made from cassava starch can reduce greenhouse gas emissions by 30%-70% compared to conventional plastics. Data collection methods for this research include literature review, material experimentation and exploration, and material testing. Through experimentation, researchers can try various material formulations, processing techniques, and product designs to thoroughly explore the potential of the material. Material experiments were conducted with cassava starch as the main base material, palm oil as a hydrophobic additive that helps modify the mechanical properties of the material that is formed to be stiff and hard, as well as causing luster. Another additive used is titanium dioxide, a white pigment powder that can modify the color character of the material to become opaque. Sodium benzoate, known as a food preservative, is also used as an additive to inhibit mold growth on the material. Art jewelry is the product designed because it reflects the effort to innovate on materials, creating new possibilities through implementation on products. In the research results, the formula made for bioplastics produces materials that can be made repetitively on a non-laboratory or home- made scale with cassava starch as the main ingredient and palm oil, titanium dioxide, and sodium benzoate as additives that have a significant effect on the character of the material which is hard, stiff, opaque, and not easy to mold even though it is stored in a closed place.