ABSTRCT Polyvinyl acetate (PVAc) is a thermoplastic polymer used as a raw material in the adhesive industry. PVAc whether modified or not, in solution or emulsion form, as a homopolymer or copolymer, shows a diversity that makes this adhesive suitable as a binder for various materials, especially wood products and their derivatives. PVAc is obtained from the polymerization of vinyl acetate mon…
SUMMARY MHD. RAJA ALFADH, NIM. 2210248026, Self-Healing Mortar Contained Nanosilica under Wet-Dry Conditions in NaCl Solution, Supervised and proctoring by Monita Olivia and Gunawan Wibisono In the marine environment, mortar as a construction material is susceptible to exposure to aggressive substances that can reduce its resistance and durability. This study aims to assess the characteristic…
ABSTRACT The chemical industry in Indonesia is experiencing rapid growth, increasing the need for supporting materials such as cumene, which is currently still imported from other countries. Cumene (C9H12) is an aromatic compound resulting from the reaction of propylene and benzene, has a colorless liquid form and is an important material in the petrochemical industry. By using the PBE-1 z…
ABSTRACT Propionic acid is a chemical that is widely used as an animal feed preservative, herbicide and food preservative. Propionic acid is also used in the manufacture of calcium and sodium propionate as an additive for preservatives. Propionic acid products have a fairly wide market so demand will definitely increase from year to year, but availability in Indonesia is still not there. In 20…
ABSTRACT Ammonia is a chemical compound with the molecular formula NH₃, consisting of one nitrogen atom and three hydrogen atoms. It is produced using hydrogen obtained from the cracking of light naphtha and nitrogen gas extracted from the air. With rising global demand, the development of an ammonia plant holds strong potential to create job opportunities and boost the country’s foreign e…
ABSTRACT Surfactant production in Indonesia reaches 70,000 tons/year, which is still insufficient to meet national demand, so Indonesia remains dependent on imports. Surfactant imports in Indonesia have increased by 8.15% per year, indicating a significant increase in surfactant demand. According to BPS data from 2020, surfactant imports in Indonesia reached 20,000 tons per year. Hydrogenated …
ABSTRACT This thesis analyzes security vulnerabilities on the Riau University website, unri.ac.id, which is generally exposed to backdoor attacks, resulting in changes in content to online gambling sites. The research used the Google Dorking method to identify infected domains, such as psil.postgraduate.unri.ac.id and feb.unri.ac.id, which showed modification of index files by the attacker. Th…
ABSTRACT Rapid population growth in Karimun Regency has led to an increased demand for clean water. The Regional Water Company (PDAM), as the primary water provider, faces challenges in meeting this demand, particularly with limited water resources. This study aims to analyze the projected domestic water demand in 2025, calculate water availability based on reservoir volume using water level (…
ABSTRACT The development of the outdoor café concept presents its own challenges in dealing with unpredictable weather changes, such as scorching heat and sudden rain, which can disrupt customer comfort. Therefore, this study aims to design and build an automatic garden umbrella system based on an Arduino microcontroller with a hydraulic drive, which can open and close the umbrella automatica…
ABSTRACT Oil palm plants require consistent irrigation to maintain optimal soil moisture and ambient temperature for healthy growth. However, manual irrigation methods commonly used in small-scale plantations are often inefficient in terms of time, labor, and water usage. This project aims to design and develop an automatic irrigation system using an Arduino Uno microcontroller, applied to a 2…
ABSTRACT As a growth center in Riau, the city of Pekanbaru faces numerous challenges with transportation infrastructure, particularly concerning pedestrian pathways. Jalan Hangtuah, which serves as a major route connecting various essential facilities, including schools, mosques, and hospitals, experiences significant pedestrian traffic during peak hours. However, the condition of the road in …
ABSTRACT During the project implementation, several challenges often arise that can lead to delays or cost overruns. Therefore, an effective control system, such as Earned Value Management (EVM), is needed to integrate time, cost, and progress to monitor the overall project performance. The objective of this research is to evaluate the cost and time of the Physical Development of Package C…
ABSTRACT Coastal areas are typically characterized by non-uniform soil properties, often featuring soft, water-saturated soils with high plasticity, which frequently results in low soil bearing capacity. This study aims to investigate the relationship between California Bearing Ratio (CBR) values and Mackintosh Probe (MP) test results by utilizing a mixture of clay soil comprising bentonit…
ABSTRACT Benzoic acid is an intermediate material needed in Indonesia. The benzoic acid plant is designed with a production capacity of 18,000 tons per year. The raw materials used are toluene and oxygen, with the assistance of cobalt acetate catalyst through the toluene oxidation reaction. The average import of benzoic acid in Indonesia is 8,339 tons per year (BPS, 2023). It is expected that …
Attira Denova ABSTRACT The polymer industry is one of the basic materials industries that is quite popular because of its widespread use in life. The development of the polymer industry began in 1839, with the discovery of vulcanization by Charles Goodyear. Until 1970 there were more than 25 polymer products produced and this continues to increase to this day. The important role of polymers i…
ABSTRACT Methyl Methacrylate is a chemical compound used in various industries such as leather coating, cosmetics, paint, household equipment, polymer, and other industries. Methyl Methacrylate is produced through the oxidation process of Isobutylene. The plant is planned to operate for 330 days per year, running continuously 24 hours per day, with a production capacity of 38,000 tons per year…
ABSTRACT In Indonesia, caprolactam is not yet produced domestically, thus the demand must still be met through imports from other countries. Over the past five years, the volume of caprolactam imports has remained relatively high, ranging between 30,000 and 35,000 tons annually. Caprolactam is produced via the Toyo Rayon Photonitrosation process. This process aims to convert cyclohexane into c…
ABSTRAK Indonesia is one of the developing countries, which continues to experience growth. The need for acrylonitrile is quite large in Indonesia. However, currently, the need for acrylonitrile is used as an intermediate chemical component in the manufacture of acrylic fibers, plastic, synthetic rubber and many other products. The purpose of the preliminary design of this factory is to meet d…
ABSTRACT This research aims to design a Catechol plant from Phenol using the Hydroxylation process with the main tool design for Distillation (T-103).Catechol is a toxic organic compound in the form of a crystalline powder that can be used as an important intermediate in the manufacture of pesticides and medicines. The factory is planned to be located in Cilegon, West Java, under the name …
ABSTRACT Methyl ester sulfonate (MES) is a group of anionic surfactants made through the sulfonation process. Methyl ester sulfonic acid is used to make liquid detergents. In Indonesia, there are not many factories or producers of methyl ester sulfonic acid so that imports are made to meet the needs. Therefore, the processing of methyl ester sulfonic acid is needed to meet the needs of methyl …