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Why White Rubber Can Make Black Tire? The Truth is not that simple.

2017-12-12

The natural rubber is in white, but tire is all black, why?

When I was a child, I asked people why tire is in black. People answered me, if tire is not black, what color it can be. Later I realized that in fact, the world's first tire is white. Because the tire is made of rubber.

White is the natural color of raw rubber.

In 1894 the Buick tires were white and without any pattern.

(http://www.sto.net.cn/news/hangye/2017-12-11/33456.html)

However, this kind of white tire is not ideal for tire strength and tear resistance, and it is easily aged. The the cost is high, after a long using time, it will turn to yellow brown.

And after a few years, when a company makes tires, besides rubber, it adds a black substance, carbon black. So the tire turns black naturally. When carbon black is combined with rubber, it makes the rubber very stiff. Although tires of other colors have been technically produced, the manufacturing process is complicated and costly. After more than 200 years of repeated experiments, people gradually accepted the black, until now the black is still the dominant tire industry.

What is the advantage of black tire?

Natural rubber has good elasticity, tires made of rubber can reduce the sense of bumpy driving. But natural rubber wear, hot melt, grip has a natural disadvantage, can not withstand friction, it is easy to be worn. The safety of black tires is also an important reason everyone has always recognized it. Car accidents caused by tire failures account for a large proportion of car accidents, so regulators are paying more attention to tire wear resistance and anti-aging rate. Only black tires can achieve good wear resistance and anti-aging.
In addition, the study found that colored tires tend to make the opposite driver dazzle and glare, which poses a potential hazard to pedestrians or pilots.

Black tire is cost-effective?
About 30% of the components in the tires now are carbon black. Of course, with the development of the tire industry will certainly have other raw materials to replace the original raw materials, may also appear in other colors. Michelin developed the world's first colored tire. Now there are many manufacturers will not be vulnerable to wear, such as the tire sidewall fonts and some of the colors used to embellishment. Although, the world's tires are black. But one day the color tires are commonly used, the road will certainly be a colorful scene.

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