Synthesis and Characterization of Polyurethanes Based on Hydroxylated Tung Oil (HTO) and PAPI

1st International Workshop on Materials Science and Mechanical Engineering

材料科学;机械制造

Yang, W.Q.^1,2 ; Zhang, J.X.^2 ; Ren, Z.Y.^2 ; Jiang, L.^2 ; Fu, Y.^2 ; He, S.Q.^1

School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, China^1

High and New Technology Research Center, Henan Academy of Sciences, Zhengzhou, China^2

关键词: Elongation at break;    PAPI;    Polymethylene;    Polyurethane adhesives;    Polyurethane films;    Polyurethane prepolymers;    Synthesis and characterizations;    Tung oil;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/281/1/012004/pdf
DOI  :  10.1088/1757-899X/281/1/012004

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Two novel polyurethane films were successfully synthesized. One was from hydroxylated tung oil (HTO) and polymethylene polyphenyl isocyanate (PAPI), which was designated as HTO-PAPI; and the other was from HTO end-capped a traditional polyurethane prepolymer and PAPI, which was designated as PP-HTO-PAPI. FTIR and NMR results show that the prepared HTO-PAPI and PP-HTO-PAPI are the expected structures. Mechanical testing result shows that the Young's modulus and elongation at break for HTO-PAPI and PP-HTO-PAPI are 282.13 MPa, 1.8 MPa and 14.15%, 218.23%, respectively, indicating that the two polyurethane films have very distinctive properties. And the properties can be controlled by incorporating different ratio of HTO and prepolymer. The present work provides a good foundation for the synthesis of novel polyurethane adhesives that will be hopefully used in different applications.