The mackintosh is a relatively commonly used and common item in our lives.
The working principle of the mackintosh: rain drops on it will quickly form a small drop of water and then flow away.
This kind of non-wetting phenomenon is exactly the reason why the mackintosh is waterproof.
This is because the molecular structure of rubber is far less attractive to water than water is to each other, and water prefers to clump together and roll down the face of the raincoat.
At the same time, the fabric used to make the raincoat also has many small round holes.
But because the rain does not soak the rubber, moisture cannot pass through these holes in the fabric.
These holes do not prevent the molecular structure of the air, which ensures that the raincoat is breathable and has the desired effect.
Nowadays, umbrellas are being used in a variety of ways as the world becomes more and more developed.
Most of the time umbrellas are still used to keep out the rain, as we are trying to avoid our bodies getting wet from the rain, which can lead to colds, fevers and ill health.
Umbrellas are also used to keep out the sun, as they are now used by many people to avoid being tanned by the summer sun or to shade themselves from the sun when they go out in the summer, so they can also be used to shade themselves from the sun.
Umbrellas for the elderly are generally dual-purpose and can be used both to keep out the rain and as a walking stick.
This use is also very applicable in the UK, as it is traditional British etiquette for umbrellas to be used as a walking stick.
Likewise, rain boots are essential.
There are many different materials used to make rainboot covers, such as plastic, polyvinyl chloride, waterproof canvas, rubber, PVC, EVA, etc.
1. Plastic disposable rain boots are impervious to the elements and are convenient but can cause environmental pollution.
2. PVC is divided into soft and hard PVC with different amounts of additives. Soft products are soft and tough, sticky to the touch, stable, not easily corroded by acids and alkalis, and more resistant to heat. But there is a strong pungency.
3. Waterproof canvas, is generally made of polyester for the blank material and then over the wax oil made of canvas with waterproof, mildew-proof, dust-proof function.
Waterproof canvas has a bright color, is light, and soft, durable, high strength, tensile strength, sun protection, water resistance, mold resistance, frost resistance, corrosion resistance, and other characteristics.
In the process of use should avoid cutting and impact with sharp objects.
Rubber rain shoes can be oxidized, sunlight and high temperature can accelerate the aging rate of rubber products, making them hard and soft.
Therefore, rain shoes should not be exposed to the sun for a long time, not to mention exposure to the sun and fire.
You should also avoid contact with coal sleeves, gasoline and other things, because these chemical solvents will dissolve the rubber and make the shoe surface sticky.
When wearing them, do not touch them with broken glass, wire, nails and other sharp and hard objects, once they are scratched and leaked, they cannot continue to be used.
To collect rain shoes, it is best to first use paper or cloth to wrap the shoes, then pack them in a shoe box and store them in a cool, dry place.