How about rubber soles

In life, many people pay more attention to the comfort of shoes when buying shoes, and do not pay much attention to the appearance of the shoes. Because if the shoes are uncomfortable, walking will be very tiring, especially for long-term outdoor sports. If the shoes are uncomfortable, the feet will often hurt. Rubber-soled shoes are more common in the market, so what do rubber soles feel like to wear?

Sole made of rubber. Rubber sole materials can be roughly divided into natural rubber or synthetic rubber.

The advantage of natural rubber is that it is very soft and elastic, and is suitable for various sports.

Artificial synthetic rubber is divided into wear-resistant rubber, environmentally friendly rubber, air rubber, sticky rubber, hard rubber and carbon-added rubber.

1. The word rubber comes from the Indian word cau-uchu, which means "weeping tree". Natural rubber is made from the latex that flows out when the Hevea brasiliensis tree is tapped, which is then solidified and dried. The finished product after processing is a material that is elastic, insulating, impermeable to water and air. It is mainly divided into two types: natural rubber and synthetic rubber. Natural rubber is made by extracting gum from plants such as rubber trees and rubber grass. Synthetic rubber is obtained by polymerization reaction of various monomers.

2. Rubber products are widely used in various aspects of industry and life. It has a wide range of uses. [1] Rubber can also be further divided into natural rubber, general-purpose rubber, styrene-butadiene rubber, nitrile rubber, silicone rubber, butadiene rubber, isoprene rubber, ethylene-propylene rubber and chloroprene rubber.

3. Rubber: A highly elastic polymer material with reversible deformation. It is elastic at room temperature and can produce large deformation under very small external force, and can return to its original shape after the external force is removed. Rubber is a completely amorphous polymer with a low glass transition temperature (Tg) and a molecular weight that is often large, greater than hundreds of thousands. Rubber stress relaxation: that is, when a rubber specimen is quickly stretched to a certain length and this length is kept constant, its stress gradually decreases as time goes by. We call this stress relaxation.

4. In the past eight trading days, Shanghai rubber continued to decline, with the main 1309 contract falling by 8.08% during the period. As of May 30, it closed at 18,835 yuan/ton, gradually approaching the previous low. Analysts believe that the imbalance between supply and demand is the main reason for the continued decline in Shanghai rubber. Supported by costs, it may stabilize in the 18,000-18,200 yuan/ton range in the future.