Strength properties of mixed cocopeat fibres and Merawan Siput Jantan (Hopea odorata spp.) bonded with partial rubber latex adhesive and nano- SiO2 in particleboard manufacturing

• Main Authors: Karim, Norani Abd, Lah, Nik Ahmad Farizan Nik, Rahman, Saliza Abdullah, Nadhari, Wan Noor Aidawati Wan, Gaffar, Zaril Faizal Zaral
• Format: Conference Proceeding
• Language: English
• Subjects: Adhesives; Aldehydes; Bend strength; Emission analysis; Fibers; Formaldehyde; Latex; Manufacturing; Mechanical properties; Mechanical tests; Particle board; Raw materials; Rubber; Scanning electron microscopy; Silica; Silicon dioxide; Water absorption
• ISSN: 0094-243X; 1551-7616
• DOI: 10.1063/5.0078301

The main purpose of this study is to determine the potential strength properties of Cocopeat fibres and Merawan Siput Jantan species as a raw material for particleboard manufacturing. The biomass can be well managed if particleboard can be manufactured from these raw materials. The 2% of Nano Silicon dioxide (SiO2) was added as an additive to rubber latex binder. The ratio of 20% cocopeat fibres and 80% Merawan Siput Jantan (Hopea Odorata) were used for particleboard manufacturing in this study. An experiment was designed of a total of 36 boards with nine (9) different parameters. The physical testing, mechanical testing, adhesive properties, formaldehyde emission, and scanning electron microscopic (SEM) were used to evaluate the properties of the particleboards based on EN 310, EN 319, JIS A 5908, and JIS A 1460. The thickness swelling (TS) results were showed that all values were less than 150%. However, the water absorption (WA) value for all particleboard samples was found higher up to 200%. The best performance for mechanical properties was found in the particleboard samples made from 100 % Merawan Siput Jantan when bonded with Urea Formaldehyde (UF) and passed the minimum requirement for internal bonding (IB) test (0.60 N/mm2) as stated in EN 319, 1993. The particleboard samples also showed a comparable internal bonding value with 593.60 N/mm2 when a rubber latex was added with 2% Nano-SiO2 used as a binder. However, none of the samples were passed the bending strength test requirement, as stated in the standards. The adhesive properties testing also revealed that rubber latex was categorized as an acid when a pH value of approximately 4.17 and high viscosity was also found in the rubber latex adhesive. The SEM images also showed that many void volumes appeared in the particleboard samples and Nano silicon dioxide (SiO2) saves significant effects on the formaldehyde emission (F.E.) test. In conclusion, cocopeat fibres and Merawan Siput Jantan can be used as potential raw materials for particleboard manufacturing, especially as a non-structural product.