The excellent properties of silicone rubber
Silicone rubber is a type of inorganic organic hybrid elastomer material, composed of siloxane inorganic skeleton and organic groups such as methyl, vinyl, and phenyl. This special structure endows silicone rubber with unique properties, with the most notable being its excellent elasticity. The elasticity of silicone rubber mainly comes from the special arrangement of its polymer chains. The alternating arrangement of silicon and oxygen atoms makes silicone rubber highly flexible and able to quickly recover to its original state after being subjected to force. In addition, there is a strong cross-linking structure between the polymer chains of silicone rubber, which can enhance the elasticity of silicone rubber and enable it to withstand greater deformation without fracture. In addition to excellent elasticity, silicone rubber also possesses excellent properties such as weather resistance and physiological inertness. Its heat resistance is also outstanding, and it can work for a long time at 180 ℃. It can withstand elasticity for several weeks or longer even above 200 ℃, and can withstand high temperatures above 300 ℃ instantly.

Elastic modulus and hardness of silicone rubber
The elastic modulus of silicone rubber is one of the important indicators for evaluating its elastic properties. Elastic modulus refers to the ratio of the elastic force exerted on an object per unit strain to the unit area, usually expressed in Newtonian force per square meter (N/m ²） The elastic modulus of silicone rubber generally ranges from 0.5 to 1.5 MPa. Compared to other materials, silicone rubber has a lower elastic modulus, which makes it excellent in softness and bending, as well as its ability to absorb shock and vibration.

Hardness refers to the resistance of a material's surface to external forces. The hardness of silicone rubber is generally represented by "shore A", which is a hardness level standard for rubber materials. The hardness level is divided into 0-100, where 0 represents the softest and 100 represents the hardest. The hardness of silicone rubber is generally between 20 and 90, among which the hardness of silicone rubber used in high demand areas such as sealing parts is usually between 40 and 70 hardness levels.

There is a certain correlation between elastic modulus and hardness. The elastic modulus and hardness of silicone rubber are important performance indicators of materials, and their relationship is reflected in the influence of hardness on the elastic modulus. Normally, the higher the hardness of silicone rubber, the greater its elastic modulus. Silicone rubber with higher hardness has higher stiffness and support capacity, making it suitable for areas with high requirements for structural strength and stability. Therefore, the selection of elastic modulus and hardness needs to be comprehensively considered based on specific application fields and actual needs.

Silicone rubber can be used to make products such as seals, pipelines, waterproof materials, cables, sound insulation pads, and can also be used to make medical devices such as artificial heart valves, artificial joints, and medical catheters. Different silicone rubber products need to have different surface characteristics such as elastic modulus and hardness to meet the needs of different application fields. It can be seen that the elastic modulus and hardness of silicone rubber play a crucial role in its performance in practical applications.

Multi field applications of silicone rubber elasticity
The elasticity of silicone rubber has made it widely used in many fields. Firstly, silicone rubber plays an important role in the automotive industry. Due to the significant vibration and impact forces that cars are subjected to during driving, it is necessary to use materials with good elasticity to reduce the damage caused by vibration and impact to the vehicle. The excellent elasticity of silicone rubber makes it an ideal material for automotive components, such as suspension systems, seals, and shock absorbers.

Secondly, silicone rubber is also widely used in the electronic industry. Electronic devices typically require the use of soft materials to protect internal circuits and components, while also being waterproof, dustproof, and insulated. The elasticity and high temperature resistance of silicone rubber make it the preferred material for electronic equipment seals and sheaths. In addition, silicone rubber can also be used for manufacturing keyboards, electronic touch screens, and phone protective cases.

In addition, the elasticity of silicone rubber also makes it an important material in the medical industry. Medical devices and prosthetic products need to have good flexibility and plasticity to ensure patient comfort and safety. The elasticity and biocompatibility of silicone rubber make it an ideal choice for medical devices, such as artificial heart valves, artificial joints, and prostheses.

In addition to the above application fields, the elasticity of silicone rubber is also widely used in fields such as aerospace, construction engineering, and household goods. For example, in the field of aerospace, silicone rubber can be used to manufacture seals and insulation materials for spacecraft. In construction engineering, silicone rubber can be used to manufacture waterproof materials and shock absorbers. In the field of household goods, silicone rubber can be used to manufacture kitchenware, rubber products, toys, etc.

Silicone rubber is widely used in various fields due to its excellent elasticity. Its special polymer chain structure gives it high flexibility and rapid recovery, and can withstand large deformations without fracture. Its elastic modulus and hardness are one of the important indicators for evaluating its performance. In practical applications, it is necessary to comprehensively consider factors such as material hardness and elastic modulus based on specific needs to select suitable silicone rubber products. In the future, with the progress of technology and the growth of demand, the application field of silicone rubber will continue to expand, creating more convenience and value for humanity.