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Abstract
Graphene is a new type of carbon material with excellent performance. It not only has good electrical, mechanical and thermal properties, but also can be used as a filler of natural latex materials to optimize the thermal conductivity of natural latex materials. Therefore, graphene is widely used in aviation, automobile, machinery and other fields. In order to study the influence of the coordination ratio of graphene and rubber materials on the thermal conductivity, the natural rubber latex was first diluted and dissolved with volatile organic solvent toluene; then 0g, 0.5g, 1g, 1.5g, 2g, and graphene were respectively mixed into 20g natural rubber latex to prepare 6 thin samples (type I, type II, type III, type IV, type V, type VI). Finally, the thermal conductivity of 6 samples was measured by fla laser thermal conductivity instrument. The results showed that with the increase of graphene dosage, the thermal conductivity of natural rubber latex sheet increased significantly; when the ratio of graphene dosage to natural rubber latex was about 1:10, the rate of improving thermal conductivity of natural rubber latex decreased.
Highlights
Due to its excellent physical and chemical properties, graphene has great application prospects in polymer nanocomposites [1]
Zhou Wang filled graphene into the epoxy resin, so he got the conclusion that graphene can improve the strength and flame retardancy of the epoxy resin [5]; everelt C Salas compounded graphene with cytochrome, so that graphene can be used as a probe to detect the density of Escherichia coli in water [6]; Zhong-shuai Wu doped graphene with nitrogen and boron to modify graphene from the molecular structure to prepare graphene-based electrodes [7]; Jun Yong Sun modified graphene with acoflavin to obtain graphene/acoflavin composite [8]
The results show that the composite of graphene and natural latex can improve the thermal conductivity of the material
Summary
Due to its excellent physical and chemical properties, graphene has great application prospects in polymer nanocomposites [1]. Xu Y F et al [10] prepared a new type of graphene composite by in-situ polymerization, which has excellent conductivity, good flexibility and good thermal stability. The results show that the composite of graphene and natural latex can improve the thermal conductivity of the material. The effect of the ratio of graphene to natural latex on the thermal conductivity is rarely studied. In this experiment, six kinds of samples were prepared according to the different proportion of graphene and natural latex. The thermal conductivity of six samples was measured by fla laser thermal conductivity meter, and the influence of different matching ratio on the thermal conductivity of graphene and natural latex composite was studied
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