Regardless of whether it is in daily life or at work, the electrical appliances used or used, as long as it involves temperature control, need to be insulated. Then, the selection of the thickness and material of the constant temperature and humidity test chamber insulation material is very important. The following is a discussion on the selection of insulation material materials.
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Corresponding methods and materials are adopted for the selection of the insulation method and the sensing method. For example, a vacuum insulation layer is used in order to prevent hot air minute heat transfer. However, due to technical and cost reasons, the current environmental testing equipment uses ultra-fine glass fiber cotton (referred to as asbestos), polyurethane rigid foam, foamed styrene, etc., and now we analyze and analyze these materials. The difference.
Asbestos, due to its good thermal insulation properties and low cost, has been used in the first large-scale insulation layer of thermal insulation materials. It is also easy to handle and fill, so it is widely used in the field of heat conduction and insulation. However, its biggest problem is that glass fiber is easy to inhale into the lungs of the human body, and it is easy to penetrate the clothes and contact the skin, and then penetrate the skin into the human body. The upper glass fibers entering the lungs and the human body cannot be digested and discharged, and the glass fibers are carcinogenic. Therefore, in recent years, many industries have banned the use of asbestos as a thermal insulation material.
Polyurethane rigid foaming is also widely used, but since the temperature range of polyurethane rigid foam insulation cannot be higher than 100 ° C, its use range is limited.
Note: Temperature range of constant temperature and humidity test chamber: 0 °C ~ 150 °C 
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