Preparation and Properties of Recycled PET Fibers Filled Polyethylene Composites

Abstract:

Responding to the resource waste and environmental damage, the recycled Polyethylene Terephthalate (PET) fibers were successfully obtained from waste PET textiles using a PFI mill. The high density polyethylene (HDPE)-based composites reinforced with recycled PET fibers were manufactured by melting blend. The mechanical properties of the composites were investigated by mechanical property test. The thermal stability and crystallinity were analyzed by Thermogravimetric Analysis (TGA) and Differential Scanning Calorimetry (DSC), and their microstructures were characterized by Scanning Electron Microscopy (SEM). The mechanical properties of the composites indicated the significant improvements in tensile, flexural and impact properties by increasing the recycled PET fibers to 20wt%. The morphological and structural results showed that the recycled PET fibers dispersed well in HDPE matrix with the help of PE-g-MAH as a compatibilizer. The thermal analysis revealed that the degree of crystallinity and crystallizing rate tended to increase, while the thermal stability remained stable. In addition, using PFI mill in dealing with the waste textiles will help open new ways for recycling of waste textiles.

• Periodical: Materials Science Forum (Volume 848)
• Pages: 89-93
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.848.89
• Online since: March 2016
• Authors: Zhi Gang Wang, Wen Hao Xi, Jing Bo Zhou, Jia Ming Xu, Guang Li
• Keywords: Composites, HDPE, PFI, Recycled PET Fibers

References

[1] S. Shi, J.M. Dai, M. Niu, Renewability of waste textile, Journal of Textile Research. 32 (2011) 147-152.

[2] Y.Y. Shi, Y.X. Chen, Y.D. Shi, Exploitation of recycling of waste PET for textile product, Progress in Textile Science & Technology. 2008; (1): 29-31.

[3] S. Kayaisang, T. Amornsakchai, S. Saikrasun, Influence of liquid crystalline polymer and recycled PET as minor blending components on rheological behavior, morphology, and thermal properties of thermoplastic blends, Polym. Adv. Technol. 20 (2009).

DOI: 10.1002/pat.1389

[4] S. Satapathy, G.B. Nando, J. Jose, Mechanical properties and fracture behavior of short PET fiber-waste polyethylene composites, J REINF PLAST COMP. 27 (2008) 967-984.

DOI: 10.1177/0731684407086626

[5] S.Y. Chen, W.M. Liang, P.S. Yen, Reinforcement of Acrylic Denture Base Resin by Incorporation of Various Fibers, J BIOMED MATER RES A. 58 (2001) 203-208.

DOI: 10.1002/1097-4636(2001)58:2<203::aid-jbm1008>3.0.co;2-g

[6] L. Liu. Preparation and Properties of Poly(p-phenylene benzobisoxazole) (PBO) Paper. Shanghai: Donghua University, 2013: 1-68.

[7] J.R. Araujo, B. Mano, G.M. Teixeira, Biomicrofibrilar composites of high density polyethylene reinforced with curauá fibers: Mechanical, interfacial and morphological properties, Composites Science and Technology. 70 (2010) 1637-1644.

DOI: 10.1016/j.compscitech.2010.06.006

[8] C. Saujanya, S. Radhakrishnan, Structure development and properties of PET fibre filled PP composites[J]. Polymer, 2001, 42: 4537-4548.

DOI: 10.1016/s0032-3861(00)00860-0

[9] R. Cheng. Preparation and Properties of PET Fiber Reinforced Wood Flour/HDPE Composites. Haerbin: Northeast Forestry University, 2014: 1-56.