Natural rubber composites with enhanced thermal conductivity fabricated via modification of boron nitride by covalent and non-covalent interactions

2021 ◽  
Vol 202 ◽  
pp. 108590
Author(s):  
Dan Yang ◽  
Qungui Wei ◽  
Liyuan Yu ◽  
Yufeng Ni ◽  
Liqun Zhang
2020 ◽  
pp. 009524432093397
Author(s):  
Minna Poikelispää ◽  
Mari Honkanen ◽  
Minnamari Vippola ◽  
Essi Sarlin

Phase change materials are utilized in heat storage applications, as they have high latent heat during the phase transition. In addition, high thermal conductivity is required from the heat storage materials to achieve high energy efficiency. In this study, the effect of carbon nanotubes (CNTs) and nanodiamonds (NDs) on the thermal conductivity and the heat storage capacity of the paraffin–natural rubber composites was studied. It was found that the CNTs work better than NDs in such composites. They increase thermal conductivity significantly and thus improve the heat transfer rate of the composite. They were also found to prevent the migration of paraffin out of the rubber during the vulcanization process, which increases the lifetime of the composite.


2001 ◽  
Vol 74 (2) ◽  
pp. 236-248 ◽  
Author(s):  
V. S. Vinod ◽  
Siby Varghese ◽  
Rosamma Alex ◽  
Baby Kuriakose

Abstract The effect of aluminum powder on the properties of natural rubber composites containing high abrasion furnace black (HAF), general purpose furnace black (GPF), acetylene black, china clay and precipitated silica was studied. In all cases the total filler content including aluminum powder is fixed at 40 parts per hundred rubber (phr). Gradual replacement of these fillers by aluminum powder showed a marked increase in thermal conductivity. This increased thermal conductivity of aluminum powder filled composites decreased the vulcanization time and led to uniform curing throughout the material, especially for thick articles. Mechanical properties like tensile strength, tear strength, rebound resilience, heat build-up, hardness, compression set, etc., are comparatively better for these composites. Aluminum powder incorporated vulcanizates also showed good resistance against thermal aging and oxidative degradation. Thus, use of aluminum powder in rubber compounds can lead to energy saving in the vulcanization of thick rubber articles and enhance the service life of such rubber products.


2015 ◽  
Vol 23 (5) ◽  
pp. 853-859 ◽  
Author(s):  
Junping Song ◽  
Lianxiang Ma ◽  
Yan He ◽  
Haiquan Yan ◽  
Zan Wu ◽  
...  

Author(s):  
Shuaishuai Cheng ◽  
Xiaoyuan Duan ◽  
Liu Xiaoqing ◽  
Zhiyi Zhang ◽  
Dong An ◽  
...  

Abstract: With the development of electronic devices, it is becoming increasingly important for thermal interface materials (TIM) to efficiently and quickly remove the heat generated. However, due to the high...


2013 ◽  
Vol 561 ◽  
pp. 158-163 ◽  
Author(s):  
Jun Ping Song ◽  
Lian Xiang Ma

Eight kinds of carbon black filled natural rubber composites were prepared, and thermal conductivity was studied. Acetylene black contributes much to the thermal conductivity of rubber, and tiny loading results in considerable improvement. The conductive carbon black 40B2 is advantageous for the improvement in thermal conductivity of rubber when its loading reaches middle level, and at its middle level, also tiny loading results in much improvement. Most kinds of carbon black for rubber application filled rubber composites have good properties except for N134 and N660, especially the poor contribution of N660. Additionally, in the case of carbon black filled rubber composites, addition of filler may not necessarily benefit the thermal conductivity when filler loading is not much.


RSC Advances ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 636-644 ◽  
Author(s):  
J. M. A. R. B. Jayasinghe ◽  
R. T. De Silva ◽  
Rohini M. de Silva ◽  
K. M. Nalin de Silva ◽  
M. M. M. G. P. G. Mantilaka ◽  
...  

Thermal conductivity of natural rubber was enhanced by incorporating novel conductive hybrid nanofillers, namely polyaniline grafted carbon black nanoparticles and carbon black nanoparticles linked with carbon microfiber composites.


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