Synthesis and properties of a millable polyurethane nanocomposite based on castor oil and halloysite nanotubes. Issue 15 (29th January 2016)

• Record Type: Journal Article
• Authors: Gong, Bing; Ouyang, Chunfa; Gao, Qun; Zhao, Liang; Zhao, Zhengchuang
• Is Part Of: RSC advances. Volume 6:Issue 15(2016)
• Page Start: 12084
• Page End: 12092
• Publication Date: 2016-01-29
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c5ra21586b
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : Elastomeric gum polyurethane nanocomposites were synthesised. Abstract : The use of bio-based materials has recently attracted a lot of attention in the area of polymer synthesis. In this work, a bio-based millable polyurethane (MPU) based on castor oil and its nanocomposites containing a very low content of halloysite nanotubes have been successfully prepared. These MPU/HNT nanocomposites showed higher tensile strength and elongation at break compared with the pristine MPU material. The tensile strength and Young's modulus of the MPU/HNT nanocomposites were improved by 35% and 63% by incorporating only 0.5 wt% of the HNTs, respectively, which was primarily attributed to the formation of covalent bonds between the OH groups of the HNTs and the NCO groups of 2, 4-toluene diisocyanate (TDI). The nanostructure of these MPU nanocomposites was characterized by spectroscopy studies and direct microstructural analysis.