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<p>The carbon black (CB) and silica (SiO<sub>2</sub>) as primary fillers are fundamental to achieving effective filler reinforcement and optimizing the material's overall performance. Within the natural rubber (NR) matrix, poor dispersion leads to material degradation. The study used AEO-9 and Si69 to modify CB and then compounded with SiO<sub>2</sub> and natural rubber latex, then though twin-screw continuous compounder worked synergistically, leading to create effective dispersion, considerably improving the overall characteristics of the composite material. Wet continuous compounding has several advantages over traditional dry compounding and general wet compounding, including reduced blending energy consumption, superior filler dispersion, and improved process continuity. The results show that wet continuous compounding increases the creation of filler–rubber networks. This process produces rubber composites with higher tensile strength, tear strength, and DIN abrasion resistance than dry compounding by 6%, 27%, and 19%, respectively. This improves compounding efficiency and provides technical support for the industrial use of wet compounding.</p> Graphical abstract <p></p>

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Preparation of highly dispersed carbon black/silica/natural rubber composites by wet continuous blending process

  • 期刊论文

  • 发表日期：

    2026年1月31日

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  • Qinghan Zhao,
  • Tingxi Dong,
  • Si Li,
  • Xiaoyao Wang,
  • Haishan Yin

摘要

The carbon black (CB) and silica (SiO2) as primary fillers are fundamental to achieving effective filler reinforcement and optimizing the material's overall performance. Within the natural rubber (NR) matrix, poor dispersion leads to material degradation. The study used AEO-9 and Si69 to modify CB and then compounded with SiO2 and natural rubber latex, then though twin-screw continuous compounder worked synergistically, leading to create effective dispersion, considerably improving the overall characteristics of the composite material. Wet continuous compounding has several advantages over traditional dry compounding and general wet compounding, including reduced blending energy consumption, superior filler dispersion, and improved process continuity. The results show that wet continuous compounding increases the creation of filler–rubber networks. This process produces rubber composites with higher tensile strength, tear strength, and DIN abrasion resistance than dry compounding by 6%, 27%, and 19%, respectively. This improves compounding efficiency and provides technical support for the industrial use of wet compounding.

Graphical abstract