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Preparation and characterization of natural rubber/silica nanocomposites using rule of similarity in latex

  • Organic material
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Journal of Wuhan University of Technology-Mater. Sci. Ed. Aims and scope Submit manuscript

Abstract

Rule of similarity and latex compounding techniques were combined for the first time to prepare natural rubber/nanosilica (NR/SiO2) nanocomposite with core-shell nanosilica-poly (methyl methacrylate) (SiO2-PMMA) particles and PMMA-modified natural rubber matrix (NR-PMMA). The microstructure of SiO2 and nanocomposites with different SiO2 contents was characterized by fourier transform infrared spectroscopy (FTIR); the morphology of nanocomposites was investigated with scanning electron microscopy (SEM); the tensile strength was characterized by tensile testing machine and the thermal stability of composites was studied by thermal gravimetric analysis. Results showed that PMMA chains have successfully grafted onto the surface of SiO2, and the core-shell SiO2-PMMA nanoparticles and NR-PMMA latex have been perfectly incorporated. SiO2-PMMA nanoparticles are evenly distributed over the NR matrix with an average size in the range of 60–100 nm at the low content (SiO2≤ 3 wt%), while aggregations are apparently observed when 5 wt% SiO2 is loaded. In addition, NR/SiO2 composities possess a considerable improvement in ageing resistance compared with the pure NR. The tensile strength of composite increases from 6.99 to 12.72 MPa, reaching the highest value at a 0.5 wt% SiO2 loading, and then the figure decreases gradually because of the aggregation of SiO2 nanoparticles. It is anticipated that the reported process is to provide a simple and economic way for preparing NR composites.

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Authors and Affiliations

  1. Key Laboratory of Tropical Crop Product Processing, Chinese Agricultural Ministry, Agricultural Product Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, 524001, China

    Yongyue Luo  (罗勇悦), Chunfang Feng, Zhifeng Yi, Quanfang Qiu & Zheng Peng  (彭政)

  2. Centre for Material and Fiber Innovation, Institute for Technology Research Innovation, Deakin University, Geelong, Vic, 3217, Australia

    Chunfang Feng, Zhifeng Yi & Kong Lx

  3. State Engineering and Technology Research Center for Key Tropical Crops, Haikou, 571101, China

    Qinghuang Wang

Authors
  1. Yongyue Luo  (罗勇悦)
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  2. Chunfang Feng
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  3. Qinghuang Wang
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  4. Zhifeng Yi
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  5. Quanfang Qiu
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  6. Kong Lx
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  7. Zheng Peng  (彭政)
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Corresponding author

Correspondence to Zheng Peng  (彭政).

Additional information

Funded by the National Natural Science Foundation of China (No. 50763006), Ministry of Science and Technology R & D Research Institutes (No.2008EG134285), 973 Program Special Fund (No. 2010CB635109), and the Fundamental Research Funds for Rubber Research Institute, CATAS (No.1630022012013)

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Luo, Y., Feng, C., Wang, Q. et al. Preparation and characterization of natural rubber/silica nanocomposites using rule of similarity in latex. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 28, 997–1002 (2013). https://doi.org/10.1007/s11595-013-0807-1

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  • DOI: https://doi.org/10.1007/s11595-013-0807-1

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