Phenylvinyl silicone rubber, as a high-performance specialty rubber material, is widely used in the shipbuilding and power industries due to its excellent insulation properties and environmental resistance. The following analysis will focus on its material characteristics, industry applications, and performance advantages.

I. Basic Characteristics of Phenylvinyl Silicone Rubber
Phenylvinyl silicone rubber is a modified silicone rubber, incorporating phenyl groups into methylvinyl silicone rubber to achieve superior performance:

Temperature Resistance: It exhibits excellent high and low temperature resistance, with an operating temperature range of -73℃ to 180℃, and can withstand short-term temperatures up to 300℃. This wide temperature range makes it suitable for extreme environments.

Electrical Insulation Properties: It possesses excellent electrical insulation properties, with minimal changes in electrical performance due to moisture, frequency variations, or temperature increases. Room temperature volume resistivity >10¹⁶ Ω·m, and breakdown field strength greater than 25kV/mm.

Environmental Stability: Long-term immersion in water results in a water absorption rate of only about 1%, without a decrease in physical properties, and good mildew resistance. Effectively prevents moisture and flashover in dirty and humid environments.

Arc Resistance: Corona discharge life is 1000 times that of PTFE and arc discharge life is 20 times that of fluororubber, making it particularly suitable for high-voltage applications.

Other Properties: It possesses physiological inertness, excellent air permeability (highest oxygen permeability among synthetic polymers), and low surface energy.

II. Applications in the Marine Industry
Phenyl vinyl silicone rubber is mainly used in the following areas in the marine industry:
Electrical Insulation Protection: Used for insulation layers of marine cables, seals for electrical equipment, etc., providing reliable insulation protection. Its salt spray resistance and moisture resistance are particularly suitable for marine environments.

Shock Damping Material: Used as a shock-absorbing element in marine equipment, effectively absorbing vibration and shock.
Sealing Material: Used in various pipes, sealing rings, and sealants to ensure the sealing performance of equipment in harsh marine environments.

Special Components: Used as a high-temperature resistant insulating material in high-temperature areas of ships (such as around engines).

III. Applications in the Power Industry
The main applications of phenyl vinyl silicone rubber in the power industry include:
Transmission and Transformation Equipment: Used for external insulation of conductors, busbars, transformers, and other equipment in high and low voltage transmission and transformation systems.

High-Temperature Electrical Equipment: Suitable for insulation protection of high-temperature electrical equipment such as induction coils and electric furnace coils.
Insulating Coatings: As the main material of silicone rubber insulating coatings, it can form an integrated protective layer after curing at room temperature.
Cable Accessories: Used for insulation sealing of cable terminals and connections, providing long-term reliable insulation protection.
New Energy Field: Also used in the electrical insulation of new energy equipment such as wind power and photovoltaics.

IV. Summary of Performance Advantages
Compared to traditional insulating materials, phenyl vinyl silicone rubber has the following significant advantages in shipbuilding and power applications:
Performance Indicators | Phenyl Vinyl Silicone Rubber | Traditional Insulating Materials
Temperature Range | -73℃~180℃ | Typically -40℃~120℃
Arc Resistance | Excellent (20 times that of fluororubber) | Average
Corona Resistance | Excellent (1000 times that of PTFE) | Poor
Water Resistance | Water Absorption Rate Approximately 1% | Relatively High
Weather Resistance | Excellent | Average
Environmental Protection | Non-toxic and Odorless | Some materials are harmful

V. Application Prospects and Development Trends
As ships and power equipment develop towards higher voltage, larger capacity, and smaller sizes, higher requirements are placed on insulating materials. Phenyl vinyl silicone rubber, with its comprehensive performance advantages, has broad application prospects in these two fields. Possible future development directions include:

Developing phenyl vinyl silicone rubber products with higher temperature resistance (above 200℃)
Optimizing material formulations to improve mechanical strength and wear resistance
Developing new processing technologies to adapt to the manufacturing of complex-shaped components
Researching composite applications with other high-performance materials