Effects of partial replacement of carbon black with nanocrystalline cellulose on properties of natural rubber nanocomposites

nano Online ◽  
2018 ◽  
Author(s):  
Caixin Li ◽  
Fei Huang ◽  
Juan Wang ◽  
Xiaorong Liang ◽  
Shiwen Huang ◽  
...  
Keyword(s):  
Carbon Black ◽  
Natural Rubber ◽  
Nanocrystalline Cellulose ◽  
Partial Replacement ◽  
Rubber Nanocomposites

Effects of partial replacement of carbon black with nanocrystalline cellulose on properties of natural rubber nanocomposites

2018 ◽  
Vol 38 (2) ◽  
pp. 137-146 ◽  
Author(s):  
Caixin Li ◽  
Fei Huang ◽  
Juan Wang ◽  
Xiaorong Liang ◽  
Shiwen Huang ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Carbon Black ◽  
Natural Rubber ◽  
Dynamic Compression ◽  
Nanocrystalline Cellulose ◽  
Degree Of Crystallinity ◽  
Partial Replacement ◽  
Electron Microscopic ◽  
High Degree ◽  
Source Materials

Abstract Waste cotton materials were used as source materials to prepare waste cotton nanocrystalline cellulose (WCNC) by optimized acid hydrolysis. The final hydrolysis products had an approximately 30 nm diameter, lengths mainly ranging from 400 nm to 800 nm, and a typical cellulose I crystal structure with a high degree of crystallinity. WCNC was further investigated to partially replace carbon black (CB) in natural rubber (NR) composites via coagulation. NR/CB/WCNC and NR/CB composites were prepared. Through comparisons of the morphology, mechanical properties, dynamic compression fatigue performance, thermal stability and soil biodegradation behaviour of the NR/CB/WCNC and NR/CB composites, WCNC was proven to perform efficiently. WCNC could increase tensile and tear strength as well as reduce heat build-up, and it presented slightly lower thermal stability and superior biodegradability. Moreover, a fine WCNC dispersion was achieved in NR/CB/WCNC. The observed reinforcement effects were evaluated based on the results of rubber processing analysis (RPA), thermogravimetric and scanning electron microscopic analyses of NR/CB/WCNC compared with the NR/CB composites.

scholarly journals Coppiced Biochars as Partial Replacement of Carbon Black Filler in Polybutadiene/Natural Rubber Composites

2020 ◽  
Vol 4 (4) ◽  
pp. 147
Author(s):  
Steven C. Peterson
Keyword(s):  
Carbon Black ◽  
Natural Rubber ◽  
Populus Tremuloides ◽  
Reference Sample ◽  
Solid Material ◽  
Anaerobic Treatment ◽  
Partial Replacement ◽  
Butadiene Rubber ◽  
Rubber Composites ◽  
Natural Rubber Composites

Although carbon black has been the dominant filler material for rubber composites for over a century, it is a finite, fossil fuel-based product that is sensitive to geopolitical issues and economics. Renewable sources of carbon need to be developed to replace carbon black in order to reduce dependence on petroleum. Biochar is the solid material left over after the anaerobic treatment of biomass at high temperature. In this work, two biochars made from coppiced hardwoods, Paulownia elongata and Populus tremuloides were used to partially replace carbon black in rubber composites using a 50/50 blend of butadiene rubber and natural rubber. Rubber composite samples using these biochars were able to replace 30% of the carbon black with virtually no loss in tensile strength, and improved elongation and toughness compared to the reference sample containing 100% carbon black.

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