Characterization a binderless particleboard of coffee husk using Hydrogen Peroxide (H2O2) and Ferrous Sulfate (FeSO4)

7th AIC‐ICMR on Sciences and Engineering 2017

自然科学;工业技术

Milawarni^1 ; Nurlaili^2 ; Sariyadi^3

Electrical Engineering Department, Lhokseumawe State Polytechnic, Indonesia^1

Civil Engineering Department, Lhokseumawe State Polytechnic, Indonesia^2

Chemical Engineering Department, Lhokseumawe State Polytechnic, Indonesia^3

关键词: Binderless particleboards;    Ester linkages;    Ferrous sulfate;    Initial treatment;    Lignocellulose materials;    Oxidation process;    Phenoxyl radical;    Physical characteristics;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/352/1/012044/pdf
DOI  :  10.1088/1757-899X/352/1/012044

来源: IOP

【 摘 要 】

Binderless particleboard is particleboard that can be made of a lignocellulose material which is formed into a board only by heat pressing without the addition of adhesive or resin. The particleboard in this study was made from coffee husk (endocarp) using H2O2 and FeSO4 catalyst to activate lignin coffee husk component by oxidation method. Initial treatment of coffee husk is the variation of steam then Oxidation (S + O) and Oxidation without steaming (O). In this study H2O2 and FeSO4 catalysts were varied, including H2O2 levels of 10,20,30 wt% based on particle dry weight and FeSO4 is 5 and 7.5 wt% based on H2O2 weight. From the results of the study, it can be concluded that the coffee husk particleboard whose raw material is treated oxidation without steam can improve the physical properties of binderless particleboard. Increased wt% of H2O2 and FeSO4 catalysts in the oxidation process of coffee husk particles produce binderless particleboard with good physical characteristics such as density, water content, water absorption and swelling thickness. Therefore, considering the efficient aspects of the use of chemicals, the combination of H2O2 and FeSO4 catalysts that can be made according to JIS A 5908 2003 standard are 20% H2O2 and 7.5% FeSO4. The ester linkages were detected by Fourier transform infrared spectroscopy, indicated that cross-link due to the incorporation of phenoxyl radicals.