Effect of Shear Intensity on Structure and Properties of PA1010/CaCl₂ Composites

Abstract:

The research focused on the effect of shear intensity on the crystallization process and the properties of the PA1010/CaCl2 composites which were prepared through melting extrusion. The results showed that, the interplanar distance, the crystallinity and the wavenumbers all had an extreme value when the screw speed was 240r/min. With the increasing of the shear intensity, the complexation between PA1010 and CaCl2 increased first and then decreased. The tensile strength and the heat distortion temperature of the samples increased first and then decreased, and the melt index decreased first and then increased, when the screw speed changed from 160r/min to 320r/min. All of them had an extreme value when the screw speed was 240r/min. The tensile yield strength, the flexural strength decreased with increasing of screw speed, and increased slightly or tended to a fixed value when the screw speed was more than 280r/min. The Izod impact strength rapidly decreased from 62MPa to 40.3MPa when the screw speed changed from 160r/min to 240r/min, then increased slowly with increasing of the shear intensity. The appropriate screw speed of the large-scale continuous production for the PA1010/CaCl2 composites was from 200r/min to 240r/min.

• Periodical: Advanced Materials Research (Volumes 476-478)
• Pages: 2231-2238
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.476-478.2231
• Online since: February 2012
• Authors: Sheng Jun Lu, Hua Hua Gan, Min He, Zhi Hu, Jie Yu
• Keywords: Calcium Chloride, Polyamide 1010, Property Analysis, Shear Intensity, Structure

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