Rice husk gray tires after soybean oil

Tire is the role of the new technology column in the field. The new technology section of the product has introduced the tires' lack of gas protection technology, anti-leakage technology, and “dandelion tires”. Today we talk about another New tire technology ---- "rice husk ash" tires. Tyre production will generally have some additives to extract the silica raw materials needed to make tires from the ash left after the incineration of rice husks used to generate electricity, which will help produce fuel-saving and environmentally-friendly tires.



In fact, Goodyear had tiresome improvements in tire technology. In 2013, Goodyear announced the inclusion of soybean oil in the tire manufacturing process, an innovative technology designed to reduce the petroleum-based oil content in tire formulations and extend the life of the tread. This new technology will ultimately benefit consumers and have a positive impact on the environment.

According to tests conducted at the factory in Lawton, Oklahoma, Oklahoma, the tire formulation with soybean oil added has a more perfect lean performance during processing. At the same time, rubber compounds made from soybean oil are easier to mix with silicon, which can improve production efficiency, reduce energy consumption, and reduce greenhouse gas emissions. The test results show that the addition of soybean oil tires can extend the tread life by 10%, which is not enough, and can save 7 million gallons of petroleum-based oil consumption each year.



After the soybean oil tires, the tire manufacturing industry also put a big move - "rice husk gray" tires. Over the past two years, Akron Innovation Technology Center has been researching and testing silica extracted from rice hull ash, and found that its impact on tire performance is comparable to that obtained by traditional methods. Rice husks are usually burned for power generation to reduce waste transported to landfills. Although conversion of rice hull ash to silica has been achieved for many years, only the silica extracted in the latest conversion process has reached a higher standard for adequate tire use.



Silicon dioxide is used as a reinforcing agent for the manufacture of tire tread compounds. Compared with the traditional tire reinforcement agent, carbon black, the use of new technology not only reduces the petroleum raw materials in the tire manufacturing process, but also extracts from the rice husk ash. The silica reduces the rolling resistance of the tire, while the lower rolling resistance helps to improve the fuel efficiency of the vehicle. In addition, it can effectively improve the wet grip performance of tires, allowing drivers to enjoy superior control while at the same time gaining a sense of security.


The history of rice husk gray tire technology


As early as the late 1990s, there were scientists writing articles to discuss research results related to this, and many companies also conducted research. The technology for extracting silica from rice husk ash was continuously refined and eventually put into commercial use. In 1999, U.S.Agricultural Technology Systems succeeded in extracting silica from burned ash in rice husks and in 2002 built the first mass-produced rice husk and silicon factory in Arkansas. In 2007, the company extended its tentacles to Asia, a traditional rice producing area, and established a pilot small-scale factory in Thailand to extract silica and activated carbon from rice husk ash.



At present, several major tire manufacturers are carrying out the research and development of this new technology, and will soon be put into production. Just recently, Goodyear Tire & Rubber announced that it has reached a supply agreement with Yihai Grain & Oil Industry Co., Ltd. for rice husk ash silica supply. This year, Goodyear will use this silica in passenger car tires sold in the Chinese market.

Extracting silica from rice hull ash, as the name suggests, requires that the rice husks be fully burned, and the current methods for extracting silica are similar.



The first step: The initial treatment of rice husk, rice husk generally contains inorganics, crude fiber and other impurities, so the initial processing with acid; Step 2: The initial treatment of rice husk at 800 °C high temperature Under full combustion, the carbon will be fully burned and the rest will be silica powder. Silica content accounts for about 1/5 of rice husks. In the carbon removal process in the second step, carbon can also be retained by a certain amount of technical means and become a raw material for activated carbon.

The reason why tire manufacturers are not tired is that, on the one hand, engineers can find ways to improve product performance from plant extracts. Tire added with plant extracts has the advantages of low manufacturing cost, high performance, saving consumption, strong traction on wet and frozen roads, and good heat dissipation in hot environments. In addition, it can reduce the tire's rotational resistance, so that the vehicle is more energy-efficient.

On the other hand, with the continuous rise in fuel prices and people's increasing awareness of environmental protection, the tire industry competition is now not only product performance, an important indicator to win the consumer's favor is who's product is lower carbon and environmental protection. In other words, research and development and utilization of new ecological materials will help establish a green and environmentally friendly corporate image.


Summary: The use of additives in the tire manufacturing process, in addition to dandelion tires, soybean oil tires and today's rice husk gray tires, as well as orange oil formula tires, these tires have nothing to do with the tires have intersected with the tires. Although the novel additives are unremarkable, they all affect the performance of the tires and change the grip ability of the tires. Surprisingly, the raw materials for these additives are found in our daily diet and are well known to us and even treated as waste by us. With the ever-increasing technological innovation, with the idea of ​​"crazy" human beings, I believe that in the future, the "legs and legs" of automobiles will be more environmentally friendly and energy-saving, and even more surprising to us.


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