Elastomers and Composites

The Rubber Society of Korea (한국고무학회)
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Study on Properties with Different Plasticizers in the Preparation of Polymer Compounds for Cable Sheath

  • Li, Xiang Xu (School of Energy, Materials and Chemical Engineering, Korea University of Technology and Education) ;
  • Lee, Sang Bong (School of Energy, Materials and Chemical Engineering, Korea University of Technology and Education) ;
  • Cho, Ur Ryong (Research Center of Eco-Friendly & High Performance Chemical Materials, Korea University of Technology and Education)
  • Received : 2019.01.17
  • Accepted : 2019.02.14
  • Published : 2019.03.31
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Abstract

Four different polymer compounds were prepared from four kinds of plasticizers, viz. di-2-ethylhexyl azelate (DOZ), di-2-ethylhexyl adipate (DOA), di-2-ethylhexyl sebacate (DOS), and di-2-butyl sebacate (DBS), for making cable sheaths for ships. Ethylene-vinyl acetate and ethylene-propylene-diene-copolymer as matrix polymers and ethylene-vinyl acetate grafted maleic anhydride as a coupling agent were compounded with a flame retardant, crosslinking agent, filler, and other additives, besides the plasticizer to obtain the polymer compounds. The polymer containing DOZ showed the highest MH and ${\Delta}T$ in the rheology test, while that containing DBS was found to have the lowest tensile strength and highest elongation because of low ${\Delta}T$. The four polymers showed similar values (31.7-31.9) for flame resistance, while the polymer containing DOZ showed the highest value for cold resistance.

Keywords

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Figure 1. The step of compounding process for rubber sheet samples in this research.

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Figure 2. Curing curves of test samples.

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Figure 3. The results of tensile test under room temperature.

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Figure 4. The results of aging test.

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Figure 5. The results of limited oxygen index test.

Table 1. Chemical Structure of Plasticizer

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Table 2. Compound Formulation (unit: phr)

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Table 3. The Results of Curing Test

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Table 4. The Results of Mooney Viscometer Test

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Table 5. The Results of Cold Resistance Test

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