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Formulation and Characterization of Formaldehyde-Free Chemically Modified Bone-Based Adhesive for Lignocellulosic Composite Products
Global Challenges ( IF 4.4 ) Pub Date : 2021-05-27 , DOI: 10.1002/gch2.202100002 Md Nazrul Islam 1 , Afroza Akter Liza 1 , Mst Liza Khatun 1 , Md Omar Faruk 2 , Atanu Kumar Das 3 , Moutusi Dey 1 , Md Jahurul Haque Akanda 4
Global Challenges ( IF 4.4 ) Pub Date : 2021-05-27 , DOI: 10.1002/gch2.202100002 Md Nazrul Islam 1 , Afroza Akter Liza 1 , Mst Liza Khatun 1 , Md Omar Faruk 2 , Atanu Kumar Das 3 , Moutusi Dey 1 , Md Jahurul Haque Akanda 4
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This study investigates the efficacy of chemically modified bone adhesive as a formaldehyde-free binder for wood-based industries. Two different types of adhesive are formulated after chemical modification of bone powder using sulfuric acid (0.5 m) and polyvinyl acetate (PVA). Gel time, solid content, Fourier-transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), viscosity, and single lap joint test for shear strength are analyzed in order to assess the adhesive properties. To analyze the efficacy of the formulated adhesive, particleboards are fabricated using boiled and unboiled sugarcane bagasse. The physical and mechanical properties of the fabricated panels are measured following ASTM standards. It is found that adhesive Type C (T-C) has the shortest gel time of 4.2 min for the highest shear strength, i.e., 5.31 MPa. The particleboard (BTC-2) fabricated using T-C adhesive shows a highest density of 0.73 g cm−3, a modulus of elasticity (MOE) of 1975 N mm−2, and a modulus of rupture (MOR) of 11.80 N mm−2. The dimensional stability of the fabricated particleboards does not follow the standard requirements; however, further study might be helpful for using the chemically modified bone adhesive as a biobased adhesive.
中文翻译：
用于木质纤维素复合材料产品的无甲醛化学改性骨基粘合剂的配方和表征
本研究调查了化学改性骨粘合剂作为木材工业无甲醛粘合剂的功效。使用硫酸（0.5 m ）和聚醋酸乙烯酯（PVA）对骨粉进行化学改性后配制出两种不同类型的粘合剂。分析凝胶时间、固含量、傅里叶变换红外光谱 (FT-IR)、热重分析 (TGA)、粘度和单搭接接头剪切强度测试，以评估粘合性能。为了分析配制的粘合剂的功效，使用煮沸和未煮沸的甘蔗渣制造刨花板。制造面板的物理和机械性能按照 ASTM 标准进行测量。结果发现，C型粘合剂（TC）的凝胶时间最短，为4.2分钟，剪切强度最高，即5.31 MPa。使用TC粘合剂制造的刨花板（BTC-2）显示出最高密度为0.73 g cm -3 ，弹性模量（MOE）为1975 N mm -2 ，断裂模量（MOR）为11.80 N mm -2 。制成的刨花板尺寸稳定性不符合标准要求；然而，进一步的研究可能有助于使用化学改性骨粘合剂作为生物基粘合剂。
更新日期：2021-05-27
中文翻译：
用于木质纤维素复合材料产品的无甲醛化学改性骨基粘合剂的配方和表征
本研究调查了化学改性骨粘合剂作为木材工业无甲醛粘合剂的功效。使用硫酸（0.5 m ）和聚醋酸乙烯酯（PVA）对骨粉进行化学改性后配制出两种不同类型的粘合剂。分析凝胶时间、固含量、傅里叶变换红外光谱 (FT-IR)、热重分析 (TGA)、粘度和单搭接接头剪切强度测试，以评估粘合性能。为了分析配制的粘合剂的功效，使用煮沸和未煮沸的甘蔗渣制造刨花板。制造面板的物理和机械性能按照 ASTM 标准进行测量。结果发现，C型粘合剂（TC）的凝胶时间最短，为4.2分钟，剪切强度最高，即5.31 MPa。使用TC粘合剂制造的刨花板（BTC-2）显示出最高密度为0.73 g cm -3 ，弹性模量（MOE）为1975 N mm -2 ，断裂模量（MOR）为11.80 N mm -2 。制成的刨花板尺寸稳定性不符合标准要求；然而，进一步的研究可能有助于使用化学改性骨粘合剂作为生物基粘合剂。
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