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Polymers 2018, 10(10), 1135; https://doi.org/10.3390/polym10101135

Optimization of Mechanical and Thermal Properties of iPP and LMPP Blend Fibres by Surface Response Methodology

1
School of Textiles and Design, Heriot-Watt University, Galashiels TD1 3HF, UK
2
Key Laboratory of Textile Science and Technology, Donghua University, Shanghai 201620, China
3
School of Materials and Textiles, Zhejiang Sci-Tech University, Hangzhou 310018, China
4
Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Received: 8 August 2018 / Revised: 25 September 2018 / Accepted: 10 October 2018 / Published: 12 October 2018
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Abstract

Optimization of the mechanical and thermal properties of isotactic polypropylene (iPP) homopolymer blended with relatively new low molecular low modulus polypropylene (LMPP) at different blend ratios was carried out via surface response methodology (RSM). Regression equations for the prediction of optimal conditions were achieved considering eight individual parameters: naming, elongation at break, tensile strength and elastic modulus, crystallization temperature (TC), first melting temperatures (TM1), heat fusion (Hf), crystallinity, and melt flow rate (MFR), which were measured as responses for the design of experiment (DOE). The adjusted and predicted correlation coefficient (R2) shows good agreement between the actual and the predicted values. To confirm the optimal values from the response model, supplementary experiments as a performance evaluation were conducted, posing better operational conditions. It has been confirmed that the RSM model was adequate to reflect the predicted optimization. The results suggest that the addition of LMPP into iPP could effectively enhance the functionality and processability of blend fibres if correctly proportioned. View Full-Text
Keywords: polypropylene; low molecular low modulus polypropylene; RSM; optimization polypropylene; low molecular low modulus polypropylene; RSM; optimization
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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 (CC BY 4.0).
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Yasin, S.; Sun, D.; Memon, H.; Zhu, F.; Jian, H.; Bin, Y.; Mingbo, M.; Hussain, M. Optimization of Mechanical and Thermal Properties of iPP and LMPP Blend Fibres by Surface Response Methodology. Polymers 2018, 10, 1135.

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