Effect of calcium carbonate on the mechanical properties of polyethylene terephthalate/polypropylene blends with styrene
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DOI 10.1007/s12206-020-2201-1
Journal of Mechanical Science and Technology 34 (0) 2020 Original Article DOI 10.1007/s12206-020-2201-1 Keywords: · Poly(ethylene terephthalate) · Polypropylene · CaCO3 · SEBS compatibilizer · Polymer blends
Effect of calcium carbonate on the mechanical properties of polyethylene terephthalate/polypropylene blends with styrene-ethylene/butylene-styrene Hong-Nga Thi Pham and Van-Thuc Nguyen
Correspondence to: Hong-Nga Thi Pham [email protected]
Citation: Pham Thi, H.-N., Nguyen, V.-T. (2020). Effect of calcium carbonate on the mechanical properties of polyethylene terephthalate/polypropylene blends with styrene-ethylene/butylene-styrene. Journal of Mechanical Science and Technology 34 (0) (2020) ?~?. http://doi.org/10.1007/s12206-020-2201-1
Received April 18th, 2020 Revised
May 8th, 2020
Accepted May 10th, 2020 † This paper was presented at ICMR2019, Maison Glad Jeju, Jeju, Korea, November 27-29, 2019. Recommended by Guest Editor Insu Jeon
Faculty of Mechanical Engineering, HCMC University of Technology and Education, No. 1 Vo Van Ngan st., Thu Duc District, HCM City 700000, Vietnam
Abstract
The effect of CaCO3 on the mechanical properties of polyethylene terephthalate/ polypropylene (PET/PP) blends with styrene-ethylene/butylene-styrene (SEBS) as a compatibilizer was investigated. Samples with different compositions of PET/PP/CaCO3 blend were prepared by injection molding method with CaCO3 content of 0, 2, 4, 6, 8 and 10 wt%. The ratio of PET/PP was fixed at 90/10, while compatibilizer SEBS had a fixed ratio of 5 %. The samples were formed according to the ASTM D638, ASTM D790, and ISO 868 standards. The results show that adding 2 % of CaCO3 helps to improve the mechanical properties of the plastic sample. Specifically, tensile strength and the flexural strength increase as CaCO3 increases from 0 to 2 %. With 2 % of CaCO3, the tensile strength and the flexural strength gain the highest value of 34.79 MPa, and 60.59 MPa, respectively. However, if the sample content is more than 4 % CaCO3, both the tensile strength and the flexural strength will experience a decline as the percentage of CaCO3 rises. The SEM microstructure indicates that CaCO3 particles are well dispersed on the PET substrate. Additionally, the number of particles increases when enhancing the CaCO3 content in the blends.
1. Introduction
© The Korean Society of Mechanical Engineers and Springer-Verlag GmbH Germany, part of Springer Nature 2020
Polymer is an important material due to its rather good mechanical properties, good chemical properties, and the ability to form easily. To strengthen the mechanical characteristics, many types of polymers could be blended to create a better polymer. Recently, recycling of polymers like polyethylene terephthalate (PET) has attracted researchers’ attention because of their desire to improve the environment and save resources. Therefore, the mixture of PET with polyolefin receives strong interest as PET is widely used in packaging, coating, textile, building, automotiv
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