Another characteristic of rubber is that it has good insulation performance and is not easy to conduct electricity. All kinds of wires and cables are made of rubber. Hard rubber is also used to make hoses, sticks, plates, partitions and battery boxes. In addition, it is also widely used as protective articles, insulating gloves, insulating rubber boots and shoes.
2. Health care
There are many rubber products in medical and health departments, such as gloves, ice packs, sponge pads, etc., which are used in hospital anesthesiology, urology, surgery, brain surgery, orthopedics, diagnosis of the fifth uterus, radiology, blood transfusion, catheterization, gastrointestinal lavage, etc. There are also rubber products as accessories for medical equipment and instruments. Medical rubber products often have special requirements, such as non-toxicity, sterilization, physiological inertia, radiation resistance and so on.
Butyl rubber of rubber towel has high biological inertia, chemical stability and slight water permeability. When used for processing rubber bottle stoppers, it can ensure the preservation of high moisture absorption and anti-commercial anticancer preparations. Silicone rubber is more and more widely used in the manufacture of medical products. For example, great progress has been made in making artificial organs and human tissue substitutes with silicone rubber. It is also used to make medicine capsules and put them in proper positions in the body, so that the medicine in the capsules can be released slowly and continuously, which can not only improve the curative effect, but also be safer.
3. Commodity storage
Rubber is not only used for health care, but also for storing fruits and vegetables. Since 1954, modified atmosphere technology has made great progress and is widely used in rubber film storage of fruits. Silicone rubber has excellent air permeability and suitable air permeability ratio for CO2 and O2. The ratio of the two is 6: 1, which means that the diffusion speed of carbon dioxide through the silicone rubber window is 6 times faster than that of oxygen. It is about 200 times faster than carbon dioxide and oxygen passing through polyethylene plastic film.
According to the difference of respiratory intensity and quantity of different fruits and vegetables, various sizes of silicone rubber dumplings are made and embedded in plastic film to control, which can maintain a proper amount of CO2 in the bag and form a good gas storage environment, thus inhibiting the respiratory intensity of fruits and vegetables, delaying the metabolic rate, delaying the after-ripening process of fruits and vegetables, reducing water evaporation and preventing rot.
Compared with the experiment of storing apples, the natural consumption of storing apples in plastic film packaging for five months is below 0.7%, and the unused natural consumption can reach 5.83%. For another example, when Xihong was stored in a silicone rubber film controlled atmosphere tent for one month, all the fruits were green and good, with a weight loss of 3.6%, and all the fruits could turn red and mature normally after being taken out. Tomatoes that don't need modified atmosphere will turn red and mature within a week and can't be stored any more.
4. Culture, education and sports
The common types are rubber bladders, table tennis bats, swimming feet, toy rubber balls, fountain pens, erasers, rubber traps, rubber lines, rubber seals, blankets, balloons, sponge pads, etc., which are widely used in cultural and educational institutions, offices, design drawings, sports equipment, etc.
5. necessities of life
In our daily life, there are many rubber products that serve us, and urban and rural residents all over the world wear these rubber products. It is one of the rubber products used in large quantities. Others, such as raincoats, hot water bottles, elastic bands, children's toys, sponge pads and latex impregnated products, all play a role in people's lives.