Research on the preparation and thermal stability of silicone rubber composites: A review

Han, Ruijie; Li, Yilong; Zhu, Qingsong; Niu, Kangmin

doi:10.1016/j.jcomc.2022.100249

Cited by 38 publications

(15 citation statements)

References 98 publications

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“…The distribution of fillers in the matrix was vital for enhancing silicone rubber’s thermal stability. 22 The heat-resistance index (T HRI ), measures how well a material can withstand a heat flow. Temperature values at 5% and 30% weight loss and heat resistance index of pure LSR, pure LSR with 5wt%, 10wt% and 15wt% Al 2 O 3 samples displayed in Table 5.…”

Section: Resultsmentioning

confidence: 99%

Al₂O₃ Nano filler’s impact on electrical, mechanical, thermal, microstructural and the chemical characteristics of liquid silicone rubber for composite insulators

Adupa

Sammaiah²,

Alavala

2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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This study examines the function of Al2O3 nanofiller in liquid silicone rubber (LSR) for the purpose of outdoor insulation. Several characteristics, including structural (Field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), physical (density), mechanical (tensile, tear, percentage elongation at break, and shore A hardness), thermal (thermal conductivity, thermo gravimetric analysis (TGA)), electrical (dielectric constant, dielectric breakdown strength, DC volume resistivity, arc resistance, and recovery of hydrophobicity), although chemical (immersion of samples for 72 h in NaCl, HCl, and H2SO4 solutions and measurement of sample weight and PH of the solution before and after immersion) were investigated after the addition of Al2O3 nanofiller with different compositions, such as 5, 10, and 15 weight percentages. In comparison to pure LSR, it was discovered that the inclusion of nano Al2O3 particles enhanced the material’s density by 11%, thermal conductivity by 12%, dielectric constant by 24%, DC volume resistivity by 2%, arc resistance by significantly 1205%, dielectric breakdown strength by 54%, and hydrophobicity. Other improvements include a 7% rise in tensile strength, a 23% rise in tear strength, a 17% rise in hardness, and an 18% reduction in percentage elongation at break when compared to pure LSR for the composite samples. Mechanical qualities are affected by the curing process duration. More specifically, we discovered there is a proportionality relationship between the tensile strength and the elastic modulus. Findings of the chemical examination revealed that the composites have corrosion resistance in the form of negligible weight change in the sample when exposed to salt and acid solutions. The combination of these exceptional qualities makes Al2O3 composites appealing within an insulating materials realm.

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Section: Resultsmentioning

confidence: 99%

Al₂O₃ Nano filler’s impact on electrical, mechanical, thermal, microstructural and the chemical characteristics of liquid silicone rubber for composite insulators

Adupa

Sammaiah²,

Alavala

2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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“…With this in mind, we seek to incorporate graphene into heat-dissipating grease, also commonly known as thermal grease, a typical interface material, consisting of two main components: a silicone base and an additive. Silicone is a polymer compound that is often used as a substrate due to its temperature stability, wet characteristics, and low surface energy [22][23][24], therefore, it can be spread evenly on the surface of the contiguous layer between the electronic component and the heat dissipation system. The substrates and additives are blended to form compounds that are applied to interface surfaces.…”

Section: Research Backgroundmentioning

confidence: 99%

Fabrication and application of graphene-based silicone grease

Thi

Nguyen

et al. 2023

Mater. Res. Express

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With the increasing power requirements of integrated circuits, the demand for efficient cooling has followed suit. Silicone grease is commonly used due to its thermal stability and ability to fill in airgaps between the electronic components and radiators. Previous works attempted to increase the grease’s thermal conductivity by adding various additives such as boron nitride or functionalized carbon nanotubes. Functionalized graphene was chosen in this study due to its exceptional physical and chemical properties. Results show that the functionalization with several acid mixtures combined with ball milling resulted in a compound chemically equivalent to graphene and thoroughly dispersed in silicone grease. An optimal grease was produced, containing 1 wt.% Gr-COOH and possessing a thermal conductivity of 6.534 W/mK. The resulting grease’s performance in thermal dissipation and approximated lifespan improvements was compared to a commercially available silicone grease using a 200W LED. Results indicated a 4.5℃ decrease in saturation temperature of LED chip along with a 257% increase in thermal conductivity.

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“…Thermal deterioration of natural fibers, Lu et al reported a two-stage technique in temperatures between 220-280 °C and 280-300 °C for changed and unmodified materials. 73 The degradation mechanism at low temperatures is associated with hemicellulose, while lignin is responsible for the high-temperature process. The apparent energies of the two methods, which lead to hemicellulose and lignin degradation, are roughly 28 and 35 kcal/mol, respectively.…”

Section: Thermal Stabilitymentioning

confidence: 99%

Tribological, mechanical, and metallurgical performance of natural fiber-reinforced composites: A comprehensive review

Veeman,

Ram,

Ravichandran

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part J:

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Composite materials have an ever-increasing demand for their application in numerous applications such as aerospace, automobile, petroleum, etc. These materials vary according to their chemical composition, properties, manufacturing techniques, etc. Natural fiber-reinforced composites are the composites where natural fibers such as plant, animal, and mineral fibers are used as reinforcement material. Reinforcement of these fibers yields composite material with extensive properties such as high strength, durability, reliability, etc. These properties lead them to commercial applications in several areas. Therefore, this paper describes various characteristics of the matrix, reinforcement, and resin used for natural fiber composite materials. Also, multiple parameters that affect the growth of these composites are investigated. The tribological behavior of natural fiber composites is focused mainly on friction, wear, and lubrication. Furthermore, the material's mechanical performance and metallurgical behavior are also given significant importance. These materials’ application in various fields is explored separately, and multiple conclusions are drawn.

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Research on the preparation and thermal stability of silicone rubber composites: A review

Cited by 38 publications

References 98 publications

Al₂O₃ Nano filler’s impact on electrical, mechanical, thermal, microstructural and the chemical characteristics of liquid silicone rubber for composite insulators

Al₂O₃ Nano filler’s impact on electrical, mechanical, thermal, microstructural and the chemical characteristics of liquid silicone rubber for composite insulators

Fabrication and application of graphene-based silicone grease

Tribological, mechanical, and metallurgical performance of natural fiber-reinforced composites: A comprehensive review

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Research on the preparation and thermal stability of silicone rubber composites: A review

Cited by 38 publications

References 98 publications

Al2O3 Nano filler’s impact on electrical, mechanical, thermal, microstructural and the chemical characteristics of liquid silicone rubber for composite insulators

Al2O3 Nano filler’s impact on electrical, mechanical, thermal, microstructural and the chemical characteristics of liquid silicone rubber for composite insulators

Fabrication and application of graphene-based silicone grease

Tribological, mechanical, and metallurgical performance of natural fiber-reinforced composites: A comprehensive review

Contact Info

Product

Resources

About

Al₂O₃ Nano filler’s impact on electrical, mechanical, thermal, microstructural and the chemical characteristics of liquid silicone rubber for composite insulators

Al₂O₃ Nano filler’s impact on electrical, mechanical, thermal, microstructural and the chemical characteristics of liquid silicone rubber for composite insulators