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Bio-Based Wood Adhesive from Camelina Protein (a Biodiesel Residue) and Depolymerized Lignin with Improved Water Resistance
ACS Omega ( IF 3.7 ) Pub Date : 2017-11-16 00:00:00 , DOI: 10.1021/acsomega.7b01093 Xiangwei Zhu 1 , Donghai Wang 2 , Ningbo Li 2 , Xiuzhi Susan Sun 1
ACS Omega ( IF 3.7 ) Pub Date : 2017-11-16 00:00:00 , DOI: 10.1021/acsomega.7b01093 Xiangwei Zhu 1 , Donghai Wang 2 , Ningbo Li 2 , Xiuzhi Susan Sun 1
Affiliation
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The aim of this study was to improve water resistance of camelina protein (CP) for wood adhesives with depolymerized lignin. Kraft lignin was depolymerized by H2O2-induced oxidation in the presence of ultrasound (US) irradiation to reduce lignin’s particle size and thermal stability and increase the hydroxyl group. Coupling with depolymerized lignin camelina protein exhibited increased hydrophobicity. Fluorescence spectroscopy analysis revealed that the oxidation treatment of lignin further stimulated the hydrophobization effect of the protein–lignin copolymer due to the increased reactivity of depolymerized lignin to camelina protein. Accordingly, the water resistance of CP–lignin adhesives was significantly improved. When copolymerized with US-induced oxidized lignin, the camelina protein had increased wet shear adhesion strength from 0.28 to 1.43 MPa, with wood panels passing the three-cycle water-soaking test. The CP resin, with depolymerized lignin as an economical, green, and bio-based hydrophobic enhancer, provided an alternative to the petroleum-based and other edible protein-based adhesives, such as soy protein.
中文翻译：
骆驼蛋白（一种生物柴油残留物）和解聚的木质素具有改善的耐水性的生物基木材胶粘剂
这项研究的目的是提高具有解聚木质素的木材胶粘剂的山茶蛋白（CP）的耐水性。牛皮纸木质素通过H 2 O 2解聚-在超声（US）辐射的存在下诱导氧化，以减少木质素的粒径和热稳定性并增加羟基。与解聚的木质素山茶蛋白的偶联显示出增加的疏水性。荧光光谱分析表明，木质素的氧化处理进一步促进了蛋白质-木质素共聚物的疏水化作用，这是由于解聚的木质素与山茶蛋白的反应性增加了。因此，CP-木质素胶粘剂的耐水性得到了显着改善。当与US诱导的氧化木质素共聚时，山茶花蛋白的湿切粘合强度从0.28 MPa增加到1.43 MPa，木板通过了三循环水浸测试。CP树脂，带有解聚的木质素，是一种经济的绿色环保材料，
更新日期：2017-11-16
中文翻译：
骆驼蛋白（一种生物柴油残留物）和解聚的木质素具有改善的耐水性的生物基木材胶粘剂
这项研究的目的是提高具有解聚木质素的木材胶粘剂的山茶蛋白（CP）的耐水性。牛皮纸木质素通过H 2 O 2解聚-在超声（US）辐射的存在下诱导氧化，以减少木质素的粒径和热稳定性并增加羟基。与解聚的木质素山茶蛋白的偶联显示出增加的疏水性。荧光光谱分析表明，木质素的氧化处理进一步促进了蛋白质-木质素共聚物的疏水化作用，这是由于解聚的木质素与山茶蛋白的反应性增加了。因此，CP-木质素胶粘剂的耐水性得到了显着改善。当与US诱导的氧化木质素共聚时，山茶花蛋白的湿切粘合强度从0.28 MPa增加到1.43 MPa，木板通过了三循环水浸测试。CP树脂，带有解聚的木质素，是一种经济的绿色环保材料，
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