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Open AccessArticle

Isotactic Polybutene-1/Bamboo Powder Composites with Excellent Properties at Initial Stage of Molding

1
School of Chemical and Biological Technology, Taiyuan University of Science and Technology, Taiyuan 030021, China
2
School of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan 030021, China
3
Shanxi Provincial Institute of Chemical Industry, Taiyuan 030021, China
4
Guangzhou Fibre Product Testing and Research Institute, Guangzhou 510220, China
*
Authors to whom correspondence should be addressed.
The first two authors contribute equally to the work.
Polymers 2019, 11(12), 1981; https://doi.org/10.3390/polym11121981
Received: 30 October 2019 / Revised: 23 November 2019 / Accepted: 24 November 2019 / Published: 2 December 2019
Isotactic polybutylene-1 (iPB) has lots of advantages and is best used as hot water pipe. However, to transform into stable crystal form I, the iPB needs as long as 7 days. In this process, the irreversible damage brings great difficulties to the use of the iPB. The method which convert it directly into crystal I has shortcomings such as being requiring complex operation and being expensive. In this study, an innovative idea was put forward, not paying attention to the crystal transformation of iPB but only focusing on reducing the time it can be applied. In this study, bamboo powder was modified by the silane coupling agent KH570 (KBP) to prepare iPB/KBP composite. The infiltration test and Fourier transform infrared (FTIR) analysis showed that the hydrophilicity of KBP is greatly reduced, which can greatly improve the compatibility of the iPB and KBP. The tensile strength, tensile modulus, flexural strength, and flexural modulus of the composites storage for 3 days is equal to the pure iPB with storage 7 days with the KBP additions of 3%, 3%, 7%, and 5%, respectively. The heat deformation temperature (HDT) of the composite with 3% KBP after 1-day storage reached the value of pure iPB storage for 7 days. This provides more space and possibilities for the industrialization of the iPB. The crystallization behavior of iPB/KBP composites proves that the addition of KBP accelerates the crystallization rate of iPB, but the crystallinity of the iPB/KBP composites is not changed. The SEM photograph of iPB/KBP composites showed that when the KBP addition was low the compatibility between KBP and iPB was good. When the KBP addition was increased the agglomeration of KBP in the iPB was very obvious, which leads to the poor mechanical properties of the composite. View Full-Text
Keywords: isotactic polybutene-1; bamboo powder; mechanical properties; crystallization properties isotactic polybutene-1; bamboo powder; mechanical properties; crystallization properties
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MDPI and ACS Style

Wang, B.; Lin, F.-H.; Zhao, Y.-Y.; Li, X.-Y.; Liu, Y.-C.; Li, J.-B.; Han, X.-J.; Liu, S.-X.; Ji, X.-R.; Luo, J.; Wei, Y.-H. Isotactic Polybutene-1/Bamboo Powder Composites with Excellent Properties at Initial Stage of Molding. Polymers 2019, 11, 1981.

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