Elastomers and Composites

The Rubber Society of Korea (한국고무학회)
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Modified Silica with Cellulose/Starch by Gel-Adsorption Method as Reinforcing Materials for SBR Latex

  • Li, Xiang Xu (School of Energy, Materials and Chemical Engineering, Korea University of Technology and Education) ;
  • Cho, Ur Ryong (School of Energy, Materials and Chemical Engineering, Korea University of Technology and Education)
  • Received : 2017.12.20
  • Accepted : 2018.01.17
  • Published : 2018.03.31
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Abstract

Styrene-butadiene Rubber (SBR) Latex composites, incorporated with cellulose/starch-silica hybrids synthesized by gel-adsorption method, were filled into rubber by the latex compounding method. The structure morphology, mechanical properties, and thermodynamic properties of gel-silica hybrids were characterized. The states of hybrids which used as fillers were also characterized by SEM. As the fillers ratio increased, the difference for storage modulus of samples had been morphology by rubber process analyzer (RPA). Then, as more fillers ratio was filled into the matrix, the best tensile strength result, and the largest modulus value were also proved by UTM and RPA. As for thermal stability, increase in the ratio of fillers led to higher initial decomposition temperature, which was also proved by TGA. The swelling ratio of samples has also been characterized. From the results of all the tests, cellulose-silica hybrid showed the best results as a filler, and the best filling ratio of this hybrid is about 10 phr, which has the best storage modulus and great tensile strength.

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References

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