Effect of hot drawing process on physical and thermal properties of polypropylene fiber containing selective peroxide and comparison with conventional polypropylene fibers

Bahareh Kalantari,Aminoddin Haji,Ahmad M Shoushtari,Mohammad R M Mojtahedi

doi:10.1590/s0104-14282012005000074

Bahareh Kalantari, Aminoddin Haji + Show 2 more

Open Access

https://doi.org/10.1590/s0104-14282012005000074

Copy DOI

Abstract

In this research, the effect of the drawing process on the physical and thermal properties of commercially available polypropylene fiber containing selective peroxide was studied. Attempts have also been made to compare this drawn fiber sample with conventional polypropylene fibers produced from reactor and with controlled rheology grades. The results showed that the drawn PP/Peroxide fiber has higher birefringence, tenacity, and initial modulus compared with that of the drawn polypropylene fiber. Moreover, the fraction of load carrying chains in various drawn polypropylene fibers was evaluated on the basis of simplified models.

Highlights

O polypropylene fibers produced from reactor and with controlled rheology grades
Various views of structural and and highest melting point in the family of olefin fibers coupled property changes resulting from drawing process have been with moderate cost make it an important fiber for industrial extensively investigated[19,20,21]
Superior properties in terms of initial modulus and tenacity have been observed in the drawn V30S/ Peroxide with just 0.3 wt. (%) of peroxide

Summary

Introduction

O polypropylene fibers produced from reactor and with controlled rheology grades. The results showed that the drawn PP/Peroxide fiber has higher birefringence, tenacity, and initial modulus compared with that of the drawn polypropylene fiber. C and highest melting point in the family of olefin fibers coupled property changes resulting from drawing process have been with moderate cost make it an important fiber for industrial extensively investigated[19,20,21]. The mechanical and high molecular weight and broad molecular weight distribution thermal properties of as-spun V30S/Peroxide fiber were compared polypropylene is very high and could cause some problems, for with conventional polypropylene fibers with different structures. Example, frozen elastic strain and draw resonance in high speed The purpose of this work is to investigate structural property processing[1,2,3]. Polypropylene resins with low melt viscosity as well as narrow molecular weight distribution are relationships for the drawn V30S/Peroxide and three conventional polypropylene fibers with different structures

Objectives

Results

Conclusion