Polyurethane tire and rubber tires on performance still has a lot of difference, today small make up take you to know.

Polyurethane tire and rubber tire performance contrast:

The cushion performance

The buffering capacity of the tire directly related to its material hardness, the higher the hardness value, tyres harder, the ability to absorb the impact energy is lower, buffer the worse performance. Rubber tire Shao Er type A hardness in 67 ~ 75 degrees, usually and polyurethane tire hardness is often as high as 83 ~ 95 degrees, due to the polyurethane tire is hard, so for automatic loading car drivers, ride comfort is much less than the rubber tires. When as an important measure for comfortableness, put on rubber tires will be significantly improved.

Traction performance

Rubber or polyurethane tire contact with the road surface adhesion of the obvious difference. The soft rubber tire tread, and polyurethane tire is very hard, so than polyurethane tire rubber tire grounding mark area is large, even compared with the soft polyurethane tire, rubber tires provide traction performance also has obvious advantages. Polyurethane tire maker to improve the polyurethane tire traction performance, usually in the tire surface nicking tool groove pattern or different forms and carved decorative pattern, not only can improve the drawing performance, also won't loss of tire high bearing capacity.

The bearing capacity

The bearing capacity of polyurethane tire rubber tire is about 2 times, just because of this, the automatic loading car manufacturers generally use polyurethane tire on the load shaft. Polyurethane tire has excellent resistance to crack growth, tearing resistance and resistance to collapse cost performance, and rubber tires often early damage due to such problems. In recent years, due to various types of automatic car load carrying capacity and speed in continuous improvement, tyre rubber or polyurethane tire caused by continuous overload driving early damage become the main tyre failure phenomenon, "overload heat production = = failure", to use polyurethane tire and rubber tires are the same.

Has been a long time, rubber tire manufacturing the first choice of materials, used in tire has been 100 years of history, and large-scale application of polyurethane elastomer in the tyre is only 50 years.

Wear-resisting performance

Soft rubber tire, good ride comfort, but not as good as polyurethane tire wear, in general, polyurethane rubber tire tire wear life is 4 times. Rubber tires in the process of driving, contact with the road surface normal wear and tear occurs often from the tread wear off debris, namely happen abrasion wear abrasion, curly, etc. Polyurethane material is tenacious, able to withstand rough road surface wear, clastic situation much better than rubber tyre, in most cases polyurethane tire prone to sliding friction.

Cut/tear resistance

Rubber cutting resistance/tensile strength is not high, once is torn, cut or cut or tear the area would extend to expand in the rubber tire, eventually lead to premature failure of the tire. And polyurethane both cutting resistance and tear resistance, similar to the rubber tire was cut and tear phenomenon, in the polyurethane tire performance is equivalent to a cut or tear mouth set in the tread, generally do not occur extension expansion, also won't cause tire whole cut or tear. However, pu or rubber, cut and tear can eventually lead to the service life of polymer.

The speed performance

If pu has a fatal weakness, it is hot. Polyurethane tire to internal heat conduction to the external fast, its normal operating temperature limit is generally 80 ~ 90 ℃, temperature, fatigue resistance of polyurethane materials and physical properties of flexing resistance etc., markedly reduced, result in tire early damage.