Chain Extension of Recycled Nylon 6 and Their Property Changes

재생 나일론 6의 사슬연장반응 및 그 특성 변화

  • Received : 2010.01.15
  • Accepted : 2010.04.14
  • Published : 2010.04.30

Abstract

Nylon 6 chips recycled from waste fishing nets were extruded through filters of various mesh sizes (150:$100\;{\mu}m$, 250:$60\;{\mu}m$, 325:$40\;{\mu}m$, 400:$30\;{\mu}m$) and subsequently chain extending reaction was carried out through melt-compounding with chain extenders, 2,2'-bis(2-oxazoline) (BOZ) and hexamethylene 1,6-dicarbamoyl dicaprolactam (HDC). The resultant changes in ash content, molecular weight and crystallization behavior in the modified nylon 6 samples were investigated from themogravimetric analysis, intrinsic viscosity measurement, end group titration, and differential scanning calorimetry, respectively. The thermal degradation kinetics were studied using a conventional thermogravimetric analysis at heating rates of 10, 20, 30, and $40^{\circ}C/min$. Thermogravimetric curves and their derivatives were analyzed using various analytical methods to determine the kinetic parameters for the thermal degradation of the modified nylon 6.

Keywords

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