What are the factors that affect the insulation of insulated bottles?

Insulated bottle is a commonly used insulated container in modern life, and its insulated effect directly affects our comfort and health. So, what are the factors that affect the insulation effect of insulated bottles? This article will provide you with a detailed introduction.

Ⅰ.What is the insulation principle of insulated bottle?

The insulation principle of insulated bottle is to use the vacuum layer to isolate the heat transfer. The interior of the insulated bottle is composed of two layers of stainless steel, the air between the two layers of stainless steel is evacuated to form a vacuum layer, the vacuum layer of insulation is very good, can effectively isolate the internal and external heat transfer, so as to achieve the effect of heat preservation.

At present, the International Organization for Standardization (ISO) and some related organizations have established standards on the length of insulation of stainless steel water bottles. Among them, ISO 20342:2020 “Stainless Steel Vacuum Flask Insulation Performance Test Methods” is an important standard, which specifies the insulation performance test methods and evaluation indexes of insulated bottles, including the measurement method of insulation duration.

Ⅱ.What are the factors affecting the thermal insulation effect of insulated bottle?

1.Material of insulated bottle: Different materials insulated bottle has different insulation effect. Generally speaking, the best insulation effect of stainless steel insulated bottle, the use of double-layer vacuum structure and high thermal conductivity of stainless steel can improve the insulation performance, followed by ceramic insulated bottle and glass insulated bottle.

2.Sealing of insulated bottle: The better the sealing performance of the insulated bottle, the better the insulation effect. If the sealing of the insulated bottle is not good, the heat will escape from the seal, affecting the insulation effect.

3. Capacity of insulated bottle: The smaller the capacity of the insulated bottle, the better the insulation effect. This is because the insulation effect of the insulated bottle is isolated by the vacuum layer of heat transfer to achieve, the smaller the capacity, the smaller the area of the vacuum layer, the smaller the area of heat transfer, the better the insulation effect.

4. The environment of insulated bottle: Insulation effect of the insulated bottle is also related to the use of the environment. Lower ambient temperature will reduce the heat dissipation, thus extending the length of insulation. But in a cold environment, the insulation effect of the insulated bottle will be affected, because the heat will be transferred to the outside world more quickly.

5. The use time of insulated bottle: The insulation effect of the insulated bottle will decrease with the increase of use time. This is because the heat inside the insulated bottle will gradually transfer to the outside world, and the density of the vacuum layer will also decrease with the increase of time, thus affecting the insulation effect.

6. Cleaning of insulated bottle: Insulated bottle insulation effect is also related to cleaning. If there are tea stains, coffee stains and other substances remaining inside the insulated bottle, it will affect the insulation effect.

7. The caliber of the insulated bottle:Generally speaking, the smaller the caliber of the insulated bottle, the better the insulation effect. This is because the smaller the caliber of the insulated bottle, usually means that the lid is also smaller, the heat transfer area is also smaller, thus reducing the heat escape. In addition, the caliber of the insulated bottle is also related to the convenience of use, the larger caliber of the insulated bottle is easier to clean and drink. Therefore, when choosing a insulated bottle, you need to consider the size of the caliber according to your needs.

It is worth noting that the size of the diameter of the mouth of the bottle is usually relatively small impact on the insulation time. The heat preservation performance of insulated bottles is mainly affected by the material and structural design of the bottle body. Manufacturers usually use multi-layer vacuum structure, copper-plated inner liner and other technologies to enhance the insulation effect, thereby compensating for the effect of the bottle diameter on the insulation time.

8. Initial temperature: The initial temperature of the hot water poured into the stainless steel bottle will also have an impact on the length of heat preservation. A higher initial temperature means that more heat needs to be retained, so the heat preservation time may be relatively short.

The international standard for heat retention time of stainless steel bottles provides consumers with a reference point to help them choose a product that meets their needs. Factors affecting the length of heat preservation include the external ambient temperature, the structure and material of the bottle, the sealing performance of the lid, and the initial temperature. Consumers should consider these factors when purchasing stainless steel water bottles and choose a product that meets their needs. It should be noted that there may be differences between different brands and models, so in actual use, it is recommended to judge its heat preservation performance based on specific product specifications and objective evaluation.