Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
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Effects of High Voltage and Surface Modification of Polyethylene Powder on the Mechanical Properties of Melt-Fixed PET Non-Woven Mats

고전압과 폴리에틸렌 분말의 표면 개질이 열융착시킨 PET 부직포 매트의 물성에 미치는 영향

  • Kim, Ji Hoon (Department of Organic Materials and Fiber Engineering, Soongsil University) ;
  • Kim, Young Ho (Department of Organic Materials and Fiber Engineering, Soongsil University) ;
  • Ryu, Ki Ok (Ryuhan Inter-Tech Co., Ltd.)
  • 김지훈 (숭실대학교 유기신소재.파이버공학과) ;
  • 김영호 (숭실대학교 유기신소재.파이버공학과) ;
  • 유기옥 ((주)유한인터텍)
  • Received : 2014.11.02
  • Accepted : 2014.12.04
  • Published : 2014.12.31
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Abstract

An eco-friendly process for the fabrication of melt-fixed PET non-woven mats was developed to improve upon conventional production methods for floor or car mats by treating PET non-woven fabrics with polymer solutions of organic solvents. Thermoplastic powders with low melting points were dosed and distributed into PET non-woven fabrics with the application of high voltage, and then melt-fixed at an elevated temperature. Both unmodified polyethylene (PE) and poly(methacrylic acid) (PMA)-grafted PE (PE-g-PMA) with a grafted yield of 15.7% were used as base thermoplastic powders. Varying the amount of PE (modified or unmodified) powder, as well as the applied voltage, affected the mechanical properties of the melt-fixed mats. These effects were investigated by mechanical testing. Results showed that the tensile breaking stress of the melt-fixed mats increased, while the strain at break decreased, with increases in the amounts of PE or PE-g-PMA powder and the applied voltage. However, the mechanical properties of the mats were further enhanced when PE-g-PMA powder was used compared to unmodified PE powder. The application of high voltages during the powder treatment caused the hydrophilic polar groups in PE-g-PMA to distribute the grafted powder more evenly throughout the PET fabric. The resulting greater evenness in the distribution of PE-g-PMA made the grafted powder more effective in enhancing the mechanical properties of the melt-fixed mats more than the unmodified PE powder.

Keywords

References

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