Mechanical and thermal properties of Polypropylene (iPP)-High density polyethylene (HDPE) binary blends

Year 2017, Volume: 13 Issue: 1, 15 - 23, 29.03.2017

Kamil Şirin Fatih Doğan Mehtap Şirin Bilsen Beşergil

https://doi.org/10.18466/cbayarfbe.302634

Cited By: 1

Abstract

In this study,
the mechanical and thermal properties of polypropylene (PP) and high density
polyethylene (HDPE) blends in different mixture ratios are investigated. PP and
HDPE 10 wt. % added blends are investigated by different tests; thermal  analysis  such as; 
melting temperature, crystalline temperature, crystalline energy,
involved crystalline ratio, mechanical properties such as; Tensile strength at
break, at yield and elongation at break) 
fitness and  the impact resistance.  PP and HDPE polymers are semi-crystalline,
involving crystalline ratio for PP and HDPE 2.08 to 38.44 % and 4.66 to 62.80
respectively. For these homopolymer’s crystalline phase and blends have two
melting points, but they have only one crystalline temperature. The degree of
melting and crystalline of blends is not different from the values of PP and
HDPE. The tensile strength at the point of flow and breaking point are not
varied according to the original homopolymer but the properties of strain at
the breaking point are much weakened. Moreover, polymer blends at the value of
non-bending, when the comparison make with the homopolymer, an improvement can
observed 2.6 % by the increased ratio of HDPE and also the impact properties of
the PP can be improved by adding more than 70 wt. % HDPE in to the PP. 

Keywords

Polymer blends, binary blends, thermal analysis, mechanical properties

References

• Şirin, K.; Balcan, M. Mechanical properties and thermal analysis of low density polyethylene+polypropylene blends with dialkyl peroxide. Polym. Advan. Technol. 2010; 21(4), 250-255.