<p class="02abstracttext"><span lang="EN-US">Composite application has increased in recent years due to many advantages, e.g. In Kalimantan, there are many types of flora, one of which is the Terap tree (Artocarpus elasticus) which has a strong enough strength and is usually used by the Dayak people as clothing, hats, and rigging. In this research, we examine the laminate composite of tree skin fibers against bending strength and impact price. In making composites using a variety of alkali time, namely 60 minutes, 90 minutes and 120 minutes, the amount of alkali concentration used is 15% of the total volume of alkaline liquid. Then also use variations of fiber orientation 0o-900-00-900, 00-900-900-00, and 900-00-00-900. The impact test results showed that the highest value was obtained in specimens with an immersion time of 90 minutes with 00-900-00-900 orientation of 0.00294 joule / mm2 and the lowest value was found in specimens with immersion time 120 minutes 00-900-00-900 amounting to 0.00164 joules / mm2. While the Bending test obtained the highest value in specimens with 120 minutes of immersion time with 00-900-00-900 fiber orientation of 48.01 mph and the lowest value was obtained in specimens with 60 minutes immersion time at 900-00-00-900 for 16.62 MPa.</span></p>

Since plastic and food waste are both types of non-lignocellulosic biomass, these must be handled and managed correctly to avoid pollution problems and damage to the environment. Bio-oil, made from recycled materials, including plastic and food waste, is one focus of these attempts. The co-pyrolysis method is being investigated in this study as a technique of recycling plastic waste and food waste to produce biofuels with reduced environmental impact. In terms of energy efficiency, bio-oil is unequal to other fuels like coal or natural gas because of its high acidity, high oxygen content, and low thermal stability. Therefore, a vacuum distillation process is required to improve bio-oil quality by adjusting the distillation temperature from 300 to 350 OC and the percentage of plastic waste used from 30 to 50%. The bio-oil was analyzed using a Gas Chromatography-Mass Spectrometer (GC-MS). The general compound showed that acids (60%) and alcohols (20%) were the most prevalent chemical compounds, followed by phenol (4%), aldehyde (14%), aliphatic (5%), Furan (14%), and ketones (11%) at maximum temperature (350 oC) for 30-50% plastic waste. Meanwhile, the final product is affected by temperature and plastic waste (PET) ratio factors. At 350 °C and a plastic waste addition of 50%, the highest bio-oil yield is 45%.