Asafu-Adjaye Osei Asibe, Street Jason, Bansode Archana, Auad Maria L, Peresin Maria Soledad, Adhikari Sushil, Liles Terry, Via Brian K
School of Forestry and Wildlife Sciences, Auburn University, Auburn, AL 36849, USA.
Department of Sustainable Bioproducts, Mississippi State University, Starkville, MS 39762, USA.
Polymers (Basel). 2022 Mar 19;14(6):1244. doi: 10.3390/polym14061244.
The objectives of this study were to utilize bio-oil-based epoxy resin in oriented strand board (OSB) production and investigate the effect of bio-oil substitution in epoxy resin as an adhesive for OSB production. Bio-oil was produced by the fast pyrolysis (FP) process using southern yellow pine ( spp.). Bio-oil-based epoxy resin was synthesized by the modification of epoxy resin with FP bio-oil at various substitution levels. Acetone extraction using a Soxhlet process indicated a superior cured reaction of bio-oil and epoxy resin at 20% bio-oil substitution. FTIR spectra corroborated the Soxhlet extraction with the removal of the epoxide peak signature within the cross-linked polymer. Images from the scanning electron microscopy suggested bulk phase homogeneity. OSB panels were tested according to ASTM D1037-12. The modulus of rupture (MOR), modulus of elasticity (MOE), internal bond strength, and water resistance (thickness swell and water absorption) properties of the OSB panels were feasible at bio-oil substitution up to 30% in the epoxy resin system.
本研究的目的是在定向刨花板（OSB）生产中使用生物油基环氧树脂，并研究生物油替代环氧树脂作为OSB生产胶粘剂的效果。生物油是通过使用南方黄松（ spp.）的快速热解（FP）工艺生产的。通过在不同替代水平下用FP生物油改性环氧树脂来合成生物油基环氧树脂。使用索氏提取法进行的丙酮提取表明，在生物油替代率为20%时，生物油与环氧树脂的固化反应更佳。傅里叶变换红外光谱（FTIR）证实了索氏提取，交联聚合物中的环氧峰特征消失。扫描电子显微镜图像显示整体相均匀性。根据ASTM D1037-12对OSB板进行测试。在环氧树脂体系中生物油替代率高达30%时，OSB板的抗弯强度（MOR）、弹性模量（MOE）、内结合强度和耐水性（厚度膨胀率和吸水率）性能是可行的。
