Applied Chemistry for Engineering (공업화학)

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
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Synthesis and Friction Properties of Oil-impregnated Nylon 6

오일함침 나일론 6의 합성 및 마찰특성

  • Chung, Dae-won (Department of Polymer Engineering, College of Engineering, Suwon University) ;
  • Kang, Suck-choon (Mechanical Engineering, College of Engineering, Suwon University)
  • 정대원 (수원대학교 공과대학 고분자공학과) ;
  • 강석춘 (수원대학교 공과대학 기계공학과)
  • Received : 1998.04.10
  • Accepted : 1998.05.29
  • Published : 1998.10.10
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Abstract

Oil-impregnated nylons were synthesized by anionic polymerization of ${\varepsilon}$-caprolactam in the presence of mineral oils. Reaction rate and molecular weight of the product were not significantly affected by the addition of oils less than 8 phr. Physical properties such as elongation and notched impact strength were improved by the addition of oil, on the other hand hardness and tensile stress at break were slightly decreased. Oil-impregnated nylon with an oil content of 6 phr showed a minimum friction coefficient, which is only 32% compared to a friction coefficient of nylon 6 without oil.

${\varepsilon}$-caprolactam의 음이온 중합반응을 미네랄 오일의 존재하에서 수행하여 오일함침 나일론 6을 합성하였다. 8 phr 미만의 오일이 첨가되었을 때에는 중합반응속도 및 생성물의 분자량에 큰 변화가 없었다. 오일의 첨가에 의해서 생성물의 신율 및 충격강도는 향상되었으며, 표면경도와 인장강도는 저하되었다. 오일함량이 6 phr인 나일론에서 마찰계수는 최소값을 나타내었으며, 이때의 마찰계수값은 오일이 첨가되지 않은 나일론의 32%에 지나지 않았다.

Keywords

Acknowledgement

Supported by : 학술진흥재단

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