Use of rubber

1.Rubber and transportation, rubber industry is developed with the automobile industry. With the rapid development of automobile industry and petrochemical industry in the 1960s, the production level of rubber industry has been greatly improved; In the 1970s, in order to meet the needs of high-speed, safety, energy conservation, elimination of pollution and prevention of public hazards, new tire varieties were promoted. The consumption of raw rubber accounts for a considerable proportion in transportation. For example, a 4-ton truck needs more than 200 kg of rubber products, a hard seat carriage needs to be equipped with more than 300 kg of rubber products, a 10000 ton ship needs nearly 10 tons of rubber products, and a jet airliner needs nearly 600 kg of rubber products. In sea, land and air transportation, no one can do without rubber removal products. As a means of transportation, tires are a major accessory. In recent years, in addition to the production of ordinary tires, radial tires and tubeless tires have also been vigorously developed, and some underground railways have also adopted rubber tires. Promote the application of rubber spring exhibition reducing products and air tight rubber release for railway vehicles and automobiles. Large shops, stations and subways are also using manned transport belts. In addition, there are also "hovercraft" and "hovercraft" made of rubber.

2. Rubber and industrial mines, industrial departments need more large and small rubber products, many varieties, wide uses, and some have special requirements. The main products are adhesive tape, rubber hose, sealing washer, rubber roller, rubber plate, rubber lining and labor protection articles. In mining, coal, metallurgy and other industries, the application of tape to transport finished products continues to appear everywhere. In order to meet the needs of large-scale production, steel wire rope core conveyor belt and synthetic fiber conveyor belt are also produced. In recent years, the rubber lining of mining mill uses forged rubber instead of manganese steel, which improves the service life by two to four times and reduces the noise. This product is widely promoted all over the world.

3. The development of rubber, agriculture, forestry and water conservancy as well as agriculture, forestry and water conservancy has also played a variety of rubber products. In addition to various tires for tractors and agricultural machinery, the number of users such as rubber crawlers for combine harvesters, rubber impervious layers and rubber dams for irrigation pools, heels and reservoirs, rubber boats and life-saving supplies are increasing. In agricultural and sideline products processing equipment, forestry, animal husbandry In terms of fishery technology and equipment, there are rubber accessories. For example, a tieniu-40 wheeled tractor needs as many as 121 rubber products. With the great development of agricultural mechanization and farmland water conservancy, more and more rafter products are needed.

4. Rubber and military solid defense. Rubber is an important strategic material and is widely used in military and national defense. For example, a tank needs more than 800 kilograms of rubber; Generally, a 30000 ton warship needs 68 tons of rubber. Almost all military equipment, air force facilities and national defense projects have rubber footprints. There are many kinds of ships, tents, warehouses, protective equipment and bathing clothes made of rubber. As for the rubber products with special properties such as high temperature resistance, low temperature resistance, oil resistance and high vacuum resistance required by the cutting-edge containment technology, they are indispensable. With the development of national defense modernization, rubber with special properties that can withstand the temperature range of - 100-400 ℃ and resist various acids, cities and oxidants is being developed and produced.

5. Rubber and civil architecture, modern architecture, rubber is more useful. For example, glass sealing rubber strips used on buildings, sound insulation floors, green sponges, rubber carpets, rainproof materials and walls painted with emulsion paint. Since the mid-1960s, large rubber spring cushions have been installed in buildings to reduce the vibration and noise caused by the subway. Foreign countries are also developing rubber cushions to reduce the damage of earthquake to buildings. The development of this kind of rubber products is of great significance. Aerated rubber, soft rubber latex cement and jiaozhouqing, which are used to manufacture concrete hollow components, are widely used in construction engineering. Mixing latex with cement can improve the elasticity and wear resistance of cement. Adding 3% rubber or latex to asphalt to pave the road surface can prevent the cracking of the road surface and improve the impact resistance. The machinery, transportation equipment and protective articles used in construction all have accessories of rubber products.

6. Rubber and electrical communication. Another characteristic of rubber is good insulation and not easy to conduct electricity. All kinds of wires and cables are mostly made of rubber. Hard rubber is also used to make rubber tubes, rubber rods, rubber plates, partitions and battery shells. In addition, it is also widely used as protective articles, insulating gloves, insulating rubber boots, shoes, etc.

7. Rubber and medical and health care. In the medical and health department, many rubber products are used, such as diagnosis, blood transfusion, catheterization, gastrointestinal washing, gloves, ice bags, sponge cushions, etc. in the Department of Anesthesiology, Urology, surgery, brain surgery, orthopedics, five palaces and radiology in the hospital. Rubber products are also used as accessories for medical equipment and instruments. Medical rubber products often have special requirements for it, such as non-toxic, sterilization, physiological inertia, radiation resistance and so on. Butyl rubber of rubber towel has high biological inertia, chemical stability and slight water permeability. It is used to process rubber bottle stopper, which can ensure the preservation of high moisture absorption, anti-cancer and anti-cancer preparations. In recent years, silicone rubber is more and more widely used in the manufacture of medical products. For example, great progress has been made in the manufacture of artificial organs and human tissue substitutes by using silicone rubber. It is also used to make drug capsules and put them in an appropriate position in the body, so that the drugs in the capsules can be released slowly and continuously, which can not only improve the curative effect, but also be relatively safe.

8. Rubber and commodity storage. Rubber is not only used for medical cattle, but also for storing fruits and vegetables. Since 1954, great progress has been made in controlled atmosphere technology, which has been widely used in silicone rubber for controlled atmosphere storage of fruits. Silicone rubber has superior air permeability and appropriate air permeability ratio to COA and 02. The ratio of the two is 6:1, that is, the diffusion rate of carbon dioxide through the silicone rubber window is six times faster than that of oxygen. It is about 200 times faster than the carbon dioxide and oxygen entered by polyethylene plastic film. According to the differences of respiratory intensity and quantity of different fruits and vegetables, silicone rubber dumplings of various sizes are made and embedded in the plastic film control, which can maintain an appropriate amount of C02 in the bag and form a good gas storage environment, so as to inhibit the respiratory intensity of fruits and vegetables, delay the metabolic rate, delay the post ripening process of fruits and vegetables, reduce water evaporation and prevent decay. From the comparison of storage experiments of apples, the natural consumption of apples packaged with plastic film for five months is less than 0.7%, and the natural consumption of apples at the end of use can reach 5.83%. For another example, after one month of controlled atmosphere storage with silicone rubber film, the rate of green and good fruit is more than 70%, and the weight loss is 3.6%. After taking out, all fruits can turn red and mature normally. Tomatoes that do not need gas adjustment turn red and mature within a week and can no longer be stored.

9. Rubber and culture, education and sports, common ball bladder, sponge rubber surface of table tennis racket, swimming foot irritability, toy ball, golden pen bladder, word eraser, rubber trap, rubber line, rubber seal, rubber cloth, balloon and sponge rubber pad, etc., are widely used in culture and education organs, offices, design and drawing, sports equipment, etc.

10. Rubber and daily necessities. Many rubber products serve us in daily life and are worn by urban and rural residents. It is one of the rubber products used in B. Others, such as raincoats, hot water aid, pine purple belts, children's toys, sponge cushions and latex impregnated products, are playing its role in people's life.