Blend polyol for home appliance is primarily used for thermal insulation in refrigerators, freezer, and incubator for delivering exceptional thermal performance. During production, polyurethane foam is injected between the cabinet's outer shell and inner liner to form a continuous insulating layer. This design effectively minimizes heat exchange between the refrigerator's interior and exterior. By suppressing heat conduction, convection, and radiation, it maintains an optimal low-temperature environment within the unit. This mechanism reduces energy consumption in the refrigeration system while significantly extending food preservation duration.
Performance and application:
1. Superior thermal insulation: This technology significantly reduces energy consumption in refrigerators and freezers. Under identical operating conditions, polyurethane-insulated units achieve 30%-50% lower energy usage compared to alternatives like glass wool insulation. For appliances that endure prolonged use, this innovation translates to substantial savings on electricity bills for users.
2. Good dimensional stability: The polyurethane insulation layer can maintain its shape and size during the use of refrigerators and freezers. It will not shrink, expand or deform due to temperature changes or long-term use, thus ensuring the structural integrity and durability of the insulation performance of refrigerators and freezers.
3. Strong adhesion: It can well bond the inner tank and shell of the refrigerator. This good adhesion can prevent the insulation layer from appearing gaps or falling off, ensure the continuity and sealing of the insulation layer, and further improve the insulation effect.
4. Good water resistance: Due to its closed-cell structure, the polyurethane insulation layer can effectively prevent moisture from entering. This is very important for refrigerators and freezers that are often exposed to moisture (such as water produced during defrosting), which can avoid damage to the insulation layer caused by water absorption and prolong the service life of the insulation layer.
