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. 2019 Aug 1;11(8):1282.
doi: 10.3390/polym11081282.

Study on the Anticondensation Characteristics of Liquid Silicone Rubber Temperature-Control Coatings

Juyi Guo  1 , Xilin Wang  2 , Jun Wang  3 , Chuan Chen  3 , Yu Liu  4 , Weinan Fan  4 , Zhidong Jia  1
Affiliations

Study on the Anticondensation Characteristics of Liquid Silicone Rubber Temperature-Control Coatings

Juyi Guo et al. Polymers (Basel). .

Abstract

Metal cabinets such as switch cabinets and ring network cabinets have the advantages of small footprints and good protection for equipment and offer neat and orderly protection. They are widely used in power systems. In a hot and humid environment, condensation can easily cause equipment to age and even cause insulation failure. Therefore, research on reliable anticondensation methods is of great significance for the safe operation of power equipment. In this study, phase change capsules with phase transition temperatures of 22 and 32 °C were used as fillers and liquid silicone rubber was used as a matrix to prepare liquid silicone rubber composites filled with phase change capsules for a temperature-control coating. Studies have shown that liquid silicone rubber coatings containing phase change capsules can significantly enhance the anticondensation performance of metal cabinets. By using a temperature-control coating on the surface where the cabinet experiences condensation, the temperature difference between the surface and the dew point is reduced, thereby slowing down the condensation rate and even preventing condensation.

Keywords: condensation; liquid silicone rubber; phase change capsule; phase change materials; ring-network cabinet.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Ring network cabinet structure diagram (left is a physical image, and right is a function diagram).
Figure 2
Figure 2
Temperature control test platform.
Figure 3
Figure 3
Conceptual diagram of the simulation experiment device.
Figure 4
Figure 4
SEM image of F1 (left) and F2 (right) (5000× magnification).
Figure 5
Figure 5
SEM image of F1 (left) and F2 (right) (20,000× magnification).
Figure 6
Figure 6
F1 andF2 TGA diagrams.
Figure 7
Figure 7
S1, S4, and S7 TGA diagrams.
Figure 8
Figure 8
S1, S10, and S13 TGA diagrams.
Figure 9
Figure 9
F1 and F2 DSC diagrams.
Figure 10
Figure 10
S1–S7 DSC diagrams.
Figure 11
Figure 11
S1 and S8–S13 DSC diagrams.
Figure 12
Figure 12
Thermal conductivity of S1–S7.
Figure 13
Figure 13
Thermal conductivity of S1 and S8–S13.
Figure 14
Figure 14
Temperature control performance of the composite coatings, (a) sample S1, S3, S4, S5 and S7; (b) sample S1, S9, S10, S11 and S13.
Figure 15
Figure 15
Coating’s effect on the anticondensation time.
Figure 16
Figure 16
Effect of different dew point temperature differences on the occurrence time of condensation.
Figure 17
Figure 17
S1, S9, and S11 condensation process diagram under working condition T11.
Figure 18
Figure 18
Different coating condensation times under three working conditions at 20 °C.
Figure 19
Figure 19
Different coating condensation times under three working conditions at 30 °C.
See this image and copyright information in PMC

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