Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
권호 표지
DOI QR코드

DOI QR Code

A Study on the Chemical Powdering Process of Polypropylene Resin for Anti-slip Floor Paint

미끄럼 방지 바닥 도료용 폴리프로필렌 수지의 화학적 분쇄에 관한 연구

  • Received : 2012.09.14
  • Accepted : 2012.11.28
  • Published : 2012.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

In this study, some experimental results of the peroxide-degradation process of polypropylene(PP) in a co-rotating twin-screw extruder to produce controlled rheology polypropylene(CRPP) are presented. The peroxide was dicumyl peroxide(DCP) and the concentration of DCP was in the range 0-0.3 wt%. It was found that the rheological properties of PP change significantly during reactive extrusion. Melt flow index(MFI) increased with DCP concentration. Intrinsic viscosity decreases with increasing DCP concentration. From dynamic rheological data, number average molecular weight(Mn), weight average molecular weight(Mn) and molecular weight distribution(MWD) were calculated. Results indicated that Mw decreases and MWD becomes narrower with increasing peroxide concentration. Especially, particle size distribution of CRPP decreases with increasing DCP concentration by chemical powdering process, and anti-slip floor paint, CRPP(DCP 0.2 wt%) powder by 10phr was friction coefficient 2.15 ${\mu}$, abrasion resistance 511.18%.

Keywords

Acknowledgement

Supported by : 한국산업기술평가관리원

References

  1. 이종년, "운동화 바닥창 무늬형태와 마찰계수의 상관관계 연구" 한국운동역학회지, 18권, 3호, pp. 1-10, 2008.
  2. H. Azizi, I. Ghasemi, M. Karrabi, "Controlled-Peroxide Degradation of Polypropylene: Rheological Properties and Prediction of MWD from Rheological Data" Polymer Testing, 27, pp. 548-554, 2008. https://doi.org/10.1016/j.polymertesting.2008.02.004
  3. ASTM D 1238 : Standard Test Method for Melt Flow Rates of Thermoplastics by Extrusion Plastometer, 2004.
  4. 표경덕, 박차철, "신발 밑창용 고무 블렌드물의 마찰 및 내마모성 특성에 대한 연구" Elastomersand Composites, 46권, 4호, pp. 324-328, 2011.
  5. 최병오, 윤홍식, 조춘구, "Controlled Rheology 폴리프로필렌에 관한 연구" Polymer(Korea), 13권, 10호, pp. 839-847, 1989.
  6. Bi-Ru Sheng, Bin Li, Bang-Hu Xie, Wei Yang, Jian-Min Feng, Ming-Bo Yang, "Influences of Molecular Weight and Crystalline Structure on Fracture Behavior of Controlled-Rheology-Polypropylene Prepared by Reactive Extrusion" Polymer Degradation and Stability, 93, pp. 225-232, 2008. https://doi.org/10.1016/j.polymdegradstab.2007.09.011
  7. V. A. Gonzilez-Gonzilez, G. Neira-Velizquez, J. L. Angulo-SBnchezl, "Polypropylene Chain Scissions and Molecular Weight Changes in Multiple Extrusion" Polymer Degradation and Stability, 60, pp. 33-42, 1998. https://doi.org/10.1016/S0141-3910(96)00233-9
  8. Hamed Azizi, Ismaiel Ghasemi, "Reactive Extrusion of Polypropylene: Production of Controlled-Rheology Polypropylene (CRPP) by Peroxide-Promoted Degradation" Polymer Testing, 23, pp. 137-143, 2004. https://doi.org/10.1016/S0142-9418(03)00072-2
  9. In-Ju Kim, Richard Smith, Hisao Nagata, "Microscopic Observations of the Progressive Wear on Shoe Surfaces that Affect the Slip Resistance Characteristics" International Journal of Industrial Ergonomics, 28, pp. 17-29, 2001. https://doi.org/10.1016/S0169-8141(01)00010-5