Glancing around the apartment, people do not even think how densely aerosols entered their lives. But some of them are used daily and more than once. So what are aerosols? What types of aerosols are there? In what areas of life are they used?
Definition
Aerosol is a deodorant, a spray can, and hair spray. In medicine, aerosols are used to spray an antibiotic or antiseptic. Inhalers for people with asthma or other respiratory diseases also fall into this category.
Aerosol can be found in household chemicals, and even as a disinfectant or insect repellent, such as mosquitoes. Women often use different substances for hair and body care, which in essence are also aerosols - hair spray, deodorant and so on.
From the above it becomes obvious that aerosol is the smallest particles that hang in a gaseous medium. It can be both liquid particles and solids. We can say that fog or smoke is also a kind of aerosol. These small particles are so tiny that they cannot fall to the ground. In a suspended state they are kept constant air currents.
Types of aerosol systems
The most common type of aerosol can be considered two-phase systems. The system received this name due to the state of aggregation of the contents of the can. To understand what kind of aerosol is in the hands, the instruction describes in detail. Most often, such systems must be shaken before use.
This action is necessary in order to mix the gas compressed in the cylinder and the volatile components of the concentrate, which is in a liquefied state. What comes out of the container when pressed is either foam or light fog. This type is often used in cosmetics and burns.
Another species, also called aerosol, is mortar. In such systems, the active substance is dissolved in the propellant or a similar solvent. When aerosol is released from the balloon, the chemical additive evaporates and the aerosol is obtained in its pure form in a state of fog.
The last type of aerosol systems can be considered three-phase. These are the most complex aerosols, since they contain three substances of different state of aggregation. When you press the balloon key, a person often sees foam. Such aerosols are actively used in medicine.
Types of spraying
In order to apply an aerosol, spraying is used. It is of three types:
- with the help of nozzles, this is a liquid outlet under pressure under pressure;
- rotating disc;
- using ultrasound.
Of course, you can find other ways of such painstaking work, at least once in their life they have seen and used each in the form of a spray gun, brumizer or aerosol generator.
Paints
In addition to medicine, the aerosol has tightly entered the domestic sphere. Its best occurrence can be considered the use of aerosols in paints. How?
Aerosol paint is a ready-made paint mixture, which is enclosed in a special package. It is applied by spraying and has several advantages over conventional acrylic and other paints. What kind?
- Easy to apply. Even a child can handle the aerosol.
- There is no need to buy additional tools, such as brushes and rollers. This significantly reduces costs.
- The dye does not need to be stirred, it is already ready for use.
- Aerosol paint is quickly applied and dries, it is easier to make a uniform surface with it.
But, despite such an abundance of advantages, work with aerosols should be carried out strictly according to the instructions that are indicated on the package.
Aerosol and safety
Aerosol is a very volatile mixture that spreads easily through the air. Therefore, the first and main rule in working with this type of dye is to work in well-ventilated places.
Repeating about the volatility of substances, it is worthwhile to realize that you need to work with the spray can only in goggles or a respirator. This can save not only your eyes and airways.
It is worth remembering that the composition in the cylinder is explosive, so you should not experiment by spraying the contents of the can over the fire or punching it. The consequences can cost limbs or even life.
Repair, home and medicine?
Spray paint is a very popular thing. Why? It is often used to paint handmade crafts. Then there are no traces of the brush, and the colors in aerosol paints are often more saturated.
An aerosol is the same air freshener in an apartment or bathroom. In its composition, in addition to the aerosol itself and the restraining component, oils and perfume in high concentration are added.
By the way, there are such systems that cooperate with aerosols without human intervention. It's about automatic fresheners. The principle of their operation is based on the fact that from time to time the device sends a signal to a special tube that connects to the cylinder, releasing aromatic gas from it. Such air fresheners are unpretentious, and all that is needed for their work is to change the cylinder and monitor the battery charge.
In addition, sometimes such systems are used to spray time-based disinfectants, also in aerosol format. Thanks to such automation, it is never possible to stray from a clear schedule.
Output
Of course, the definition of an aerosol is more than just particles of matter that float in the air. But modern people are accustomed to call everything that is sprayed from a spray can. This is partly correct, but not quite.
Aerosols are used both for cosmetic purposes and to help patients disinfect their hands or premises, give it a pleasant aroma and give the surface the desired color. There are so many aerosol applications that people just don’t notice how they continue to use them. Even in order to simply wipe the liquid crystal monitor, people will use a special spray.
Care must be taken when working with aerosols. It is strictly forbidden to give cylinders with this substance to children. As well as trying to disassemble the cylinder yourself.