Preparation and mechanical properties of pine needle/ polypropylene bio-composites

  1. Ramakrishna .M 1,
  2. Vivek kumar 2
  3. Yuvraj Singh Negi 3
  4. Aradhyula Thirumala Vasu 4
  5. Murthy Chavali 5

1 Department of Mechanical Engineering, Vignan’s Foundation for Science, Technology and Research University (VFSTRU; Vignan University), Vadlamudi 522 213 Andhra Pradesh, India
2 Department of Paper Technology, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur 247 001 India
3Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur 247001 India
4Division of Chemistry, Department of Sciences and Humanities, Vignan’s Foundation for Science, Technology and Research University (VFSTRU; Vignan University), Vadlamudi 522 213 Andhra Pradesh, India

  1. Corresponding author email

Associate Editor: T. Kaur
Science and Engineering Applications 2016, 1, 68–75. doi:10.26705/SAEA.2016.1.20.68-75
Received 08 Nov 2016, Accepted 21 Nov 2016, Published 21 Nov 2016

Abstract

The main objective of the present work is to develop a low-cost eco-friendly and biodegradable reinforced thermoplastic composites utilizing pine needle fibers as reinforcing materials. Pine needle/polypropylene composites were prepared with varying load of fillers, and varying dosage of compatibilizer (MA-g-PP) to improve the interface bonding between fiber and the matrix. Composites were prepared by using treated Pine Needle Filler (TPNF), Untreated Pine Needle Filler (UPNF) procured from the paper mill. Sample preparation was carried out in an injection molding machine. Tensile properties of the samples were measured on Shimadzu UTM. TGA and DTG were carried out simultaneously by using a Perkin Elmer Thermal Analyzer. Structural characterization was done using FTIR spectrophotometer. The flame retardancy of TPNF and UPNF reinforced polypropylene composites were characterized by the UL-94 test. The composite intact fracture surface morphology was analyzed on a field emission scanning electron microscope.

Keywords: Composites; TGA; DTG; Field Emission Scanning Electron microscopy; FE-SEM; Flammability.

 
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