An Eco-Effective Soybean Meal-Based Adhesive Enhanced with Diglycidyl Resorcinol Ether
1
Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Longpan Road 159, Xuanwu District, Nanjing 210037, China
2
Ministry of Education Key Laboratory of Wooden Material Science and Application, Beijing Key Laboratory of Wood Science and Engineering, College of Materials Science and Technology, Beijing Forestry University, Beijing 100083, China
*
Author to whom correspondence should be addressed.
Polymers 2020, 12(4), 954; https://doi.org/10.3390/polym12040954
Received: 29 February 2020
/
Revised: 13 April 2020
/
Accepted: 15 April 2020
/
Published: 20 April 2020
(This article belongs to the Special Issue Bio-Based Polymers: Synthesis and Properties)
Soybean meal-based adhesive is a good wood adhesive mainly due to its renewable, degradable, and environmentally friendly features. To improve the enhancement efficiency for adhesives, diglycidyl resorcinol ether (DRE) containing a benzene ring and flexible chain structure was used as an efficient cross-linker to enhance the adhesive in the study. The physicochemical properties of adhesives, the dry shear strength, and wet shear strength of plywood were measured. Results suggested that DRE reacted with the functional groups of soybean meal adhesive and formed a cross-linking network during hot press process in a ring-opening reaction through a covalent bond. As expected, compared to adhesive control, the soybean meal adhesive with 4 wt% DRE incorporation showed a significant increment in wet shear strength by 227.8% and in dry shear strength by 82.7%. In short, soybean meal adhesive enhanced with DRE showed considerable potential as a wood adhesive for industrial applications.
View Full-Text
Keywords:
soybean meal-based adhesive; diglycidyl resorcinol ether; dry shear strength; wet shear strength; plywood
▼
Show Figures
Figure 1
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
MDPI and ACS Style
Luo, J.; Zhou, Y.; Zhang, Y.; Gao, Q.; Li, J. An Eco-Effective Soybean Meal-Based Adhesive Enhanced with Diglycidyl Resorcinol Ether. Polymers 2020, 12, 954. https://doi.org/10.3390/polym12040954
AMA Style
Luo J, Zhou Y, Zhang Y, Gao Q, Li J. An Eco-Effective Soybean Meal-Based Adhesive Enhanced with Diglycidyl Resorcinol Ether. Polymers. 2020; 12(4):954. https://doi.org/10.3390/polym12040954
Chicago/Turabian StyleLuo, Jing, Ying Zhou, Yi Zhang, Qiang Gao, and Jianzhang Li. 2020. "An Eco-Effective Soybean Meal-Based Adhesive Enhanced with Diglycidyl Resorcinol Ether" Polymers 12, no. 4: 954. https://doi.org/10.3390/polym12040954
Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.
