Both people Team summer How Team winter They have their own arguments to protect their position. Some are quite doubtful, but others are invincible. For example, winter defenders protect this with a cold, you can put all the blankets that you want and dress with thousands of layers, but with heating you can undress so much. At this moment there is nothing to do. What if it was? IN Tiktok A Refreshing blankets. Many people say that it was before and after their vacation on thermal days. Now is it something like a placebo effect or really update?
Researcher of the Institute of Materials IMDEA Maria Dolores Martin Alonso wrote an article c Talk On this topic. According to ordinary refreshing blankets, those that usually go to the video of Tiktoka, They do not refresh as promised. At least for a long time. However, there are some materials that can offer us Durable freshness A very interesting way.
Currently, these materials are used more often for Confectionery sportswear, But they can serve perfectly to make refreshing blankets. In addition, refreshing blankets are not interesting only for people. A lot of time has passed since then They are also sold for petsIf there is an option that holds them fresh for a longer time, it would be all the advantages.
How does most refreshing blankets work?
Refreshing fabrics for their simplicity for Transfer the heat of our body of the fabric itselfThe field not all materials conduct heat. Martin Alonso sets an example of a handrail in the sun. If this is metal, we can hardly touch it like hot, while there would be no wooden problems. This is because the metal brings heat better.
In the case of refreshing blankets, they are made of fabrics that carry out heat from our body. This, for example, Case of nylon or modified polyethyleneHowever, how many people told Tiktok in their video, the feeling of relief lasts some time. Then the heat usually returns. This is because after Thermal balanceThe fabric does not continue to absorb heat. This balance refers to a state in which two bodies in contact correspond to their temperature.
The fabric is colder than our body, so it leads part of our heat; But, if he does not have the opportunity to scatter, the freshness will last very little. You cannot accumulate more heat in the blanketA field to solve it, a refreshing blanket can be used in well -entertained or conditioned rooms, so that there is a colder environment into which it is possible to dispel heat to continue to correspond to the temperature. The problem is that if we use air conditioning, in fact it does not have a big sense in adding a blanket.
Are there any other options?
If we really want to save electricity and use a refreshing blanket that does not require air conditioner, there is still hope. There is a type of materials known as PCMFor abbreviation in English Function phase MaterialsWhat They contribute to a much more durable cold effectThey do this with a field, as its name indicates, thanks to the physics of phase changes.
And, when the phase changes occur, the material absorbs a lot of heat for a long time, but Without changing your temperature. For example, when the ice melts, it remains for a long time, absorbing heat, but It does not move with 0 ºC So far, all the ice is no longer liquid water. Materials proposed by Martin Alonso in his article They change the phase at temperatures between 18 ºC and 21 ºCWhich are those that we feel most comfortable. Thus, the fabric filled with PCM nanoparticles offers advantages that do not offer ordinary refreshing blankets. They will absorb heat, initially in the same way, but as soon as they reach these remarkable 20 ° C, more and more heat will be absorbed, while the material was without a change in the phase inside. This contributes to very strong cooling. And the best thing that later, if it remains in the air, The material is restored and can start again. How the ice is frozen again.
We could see this as a refreshing blanket, full of ice cubes, which melts only at a temperature that makes us feel more comfortable, so they last much more and keep us in the cold longer.
How do dogs refreshing blankets work?
On the other hand, we have refreshing blankets of dogs that act from pure pressure. When our pets lie on them, The pressure activates the chemical reaction It needs energy to continue execution. This energy comes only from the body of the animal, which radiates energy in the form of heat. Therefore, this can be updated for a while.
The problem, again, is that the time comes when there is no need to remove more heat in order to continue the reaction, so PCM materials remain the best option. In addition, pressure is not required, so we can wrap ourselves in a blanket, not lying down and pressure. Seeing what is happening above us with heat, research in these materials seems like a great option.
Source: Hiper Textual
