Effect of pretreatment with detergent on mechanical properties of photocured coir (Cocos nucifera) fiber with ethyleneglycol dimethacrylate

Authors

  • Mubarak A. Khan,

    Corresponding author
    1. Radiation and Polymer Chemistry laboratory, Institute of Nuclear Science and Technology, Bangladesh Atomic Energy Commission, Dhaka 1000, Bangladesh
    • Radiation and Polymer Chemistry laboratory, Institute of Nuclear Science and Technology, Bangladesh Atomic Energy Commission, Dhaka 1000, Bangladesh
    Search for more papers by this author
  • S. K. Bhattacharia,

    1. Radiation and Polymer Chemistry laboratory, Institute of Nuclear Science and Technology, Bangladesh Atomic Energy Commission, Dhaka 1000, Bangladesh
    Search for more papers by this author
  • M. Masudul Hassan,

    1. Department of Chemistry, MC College of Bangladesh National University, Sylhet 3100, Bangladesh
    Search for more papers by this author
  • Abeda Sultana

    1. Department of Applied Chemistry and Chemical Technology, University of Dhaka, Dhaka 1000, Bangladesh
    Search for more papers by this author

Abstract

Coir fibers were treated with ethylene glycol dimethacrylate (EGDMA) mixed with methanol (MeOH) under UV radiation. A series of solutions of different concentrations of EGDMA in methanol along with a photoinitator, Irgacure-500 (mixture of 1-hydroxylcyclohexylphenylketone and benzophenonc), were prepared. Monomer concentration, soaking time, and radiation intensity were optimized in terms of polymer loading (PL) and mechanical properties. EGDMA (50%), 5 min soaking time at the 4th pass of radiation, produced higher PL and tensile strength (TS), and the values of PL is 17% and TS is 1.3 times of the nontreated one. Then, coir fiber was pretreated with detergent and then treated with the optimized monomer formulation, which exhibited a higher PL of 69% and produced TS of the coir fiber of 4.4 times of the nontreated one. Coir fiber pretreated with detergent along with UV radiation showed the highest TS, which is 18.2 times of nontreated one. Water uptake, degradable properties, and simulated weathering of treated and virgin fibers were also monitored, which showed that EGDMA treatment under UV radiation improved the degradable property. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 101: 1630–1636, 2006

Ancillary