Raw natural rubber latex-based bio-adhesive for the production of particleboard: formulation and optimization of process parameters

• Published in: RSC advances Vol. 11; no. 46; pp. 28542 - 28549
• Main Authors: Islam, Md Nazrul, Adib, Abdullah, Dana, Nabila Hasan, Das, Atanu Kumar, Faruk, Md Omar, Hasan Siddique, Mohammad Raqibul, Agar, David A, Larsson, Sylvia H, Rudolfsson, Magnus, Ashaduzzaman, Md, Shams, Md Iftekhar
• Format: Journal Article
• Language: English
• Published: England Royal Society of Chemistry 2021; The Royal Society of Chemistry
• Subjects: Acids; Chemistry; Formic acid; Gravimetric analysis; Jute; Latex; Mechanical properties; Modulus of elasticity; Modulus of rupture; Natural rubber; Optimization; Particle board; Physical properties; Polymer Technologies; Polymerteknologi; Pressing; Process parameters; Tensile strength; Textil-, gummi- och polymermaterial; Textile, Rubber and Polymeric Materials; Thermal decomposition; Thermodynamic properties; Trävetenskap; Water absorption; Wood Science
• ISSN: 2046-2069; 2046-2069
• DOI: 10.1039/d1ra05307h

In this study, bio-adhesives from natural rubber latex (NRL) were combined with starch and formic acid to fabricate jute stick-based particleboards (JSPs). Different blends of NRL, starch, and formic acid,
i.e.
, 6 : 1 : 1, 2 : 1 : 1, and 2 : 3 : 3, were used to produce particleboards using a pressing temperature of 180 °C and applied pressure of 5 MPa using a 5 min pressing time. The particleboards were tested for physical, mechanical, and thermal properties according to ANSI standards. Based on initial screening, the best formula (NRL/starch/formic acid of 2 : 3 : 3) was used to optimize the temperature and pressing time for the highest board performance. The highest density, tensile strength, modulus of elasticity, and modulus of rupture were 830 g cm
−3
, 10.51, 2380, and 20.05 N mm
−2
, respectively. Thermo-gravimetric analysis indicated that thermal decomposition of samples primarily occurred in a temperature range of 265 to 399 °C, indicating good thermal performance. The measured physical and mechanical properties of the produced JSPs fulfilled the production standards. However, fulfilling the water absorption and thickness swelling criteria was a challenge. The results indicate that NRL is a promising alternative binder when blended with starch and formic acid.
In this study, bio-adhesives from natural rubber latex (NRL) were combined with starch and formic acid to fabricate jute stick-based particleboards (JSPs).