Asbestos is obviously a primary carcinogen. Why is there a lot of asbestos in the rice cooker?
In our daily life, it is not only rice cookers that contain asbestos, such as some asbestos cement boards, gypsum coatings on roofs and inferior carpets. These things all contain some asbestos, because the fibers of asbestos are so small that we can't see them with the naked eye. Therefore, when we come into contact with things with a lot of dust, we must wear masks, which can prevent a lot of harmful dust from being inhaled into the human body.
There are also many places in industry where asbestos materials are used. For example, in winter in the north, when the temperature is too low, people will use central heating, and the heating pipes exposed on the ground will be wrapped in a circle of asbestos materials. Some steel mills also wrap steel-making boilers with asbestos when making steel. Why do these factories like to use asbestos materials? This is mainly because asbestos itself is very resistant to high temperature, has a certain thermal insulation effect, and is cheap.
Some construction workers also use asbestos when they get some building materials. Generally, when building walls, construction workers will add some asbestos cement made of asbestos to the cement. Then why did they add asbestos cement? In fact, asbestos cement is added because it has good sound insulation effect, and when the weather is hot, asbestos, as a high-temperature resistant material, can also play a role in heat insulation. Although asbestos is a first-class carcinogen, it also plays a great role in daily life.