How exactly does the thermal insulation performance of aluminum-plastic co-extruded windows and doors achieve efficient heat insulation?

In the field of construction, the heat preservation and insulation performance of windows and doors is directly related to indoor comfort and energy consumption. Liaoning MOHAN New Material Co., Ltd. is deeply engaged in the R&D and production of aluminum-plastic co-extruded profiles, and its aluminum-plastic co-extruded windows and doors provide high-quality solutions for building energy saving and comfortable living environment with excellent heat preservation performance. Below, we will analyze the principle of aluminum-plastic co-extruded windows and doors to achieve efficient heat insulation.

First, the scientific structural design, to create heat insulation “barriers”

Multi-cavity structure to block heat conduction

Aluminum-plastic co-extruded doors and windows using multi-cavity design, a number of independent cavities in the profile to form a heat-insulating layer of air. Air is a poor conductor of heat, and heat conduction slows down dramatically when it passes through these cavities. Compared with single-cavity profiles, multi-cavity profiles can effectively extend the path of heat conduction and greatly reduce the efficiency of heat conduction. Take the aluminum-plastic co-extruded windows and doors produced by Liaoning Muhan as an example, some products are designed with five-cavity profiles, and after professional testing, their heat transfer coefficients are reduced by about 15% compared with the traditional three-cavity profiles, which significantly improves the heat preservation performance.

Broken bridge design prevents heat transfer

Aluminum-plastic co-extruded windows and doors use the bridge-breaking technology to separate the internal and external aluminum profiles through heat-insulating strips. The heat insulation strips are mostly made of PA66 nylon and other high-performance heat insulation materials with extremely low thermal conductivity, which can effectively prevent the heat from directly transferring through the aluminum profiles. This design makes the internal and external aluminum profiles can not form a thermal bridge, greatly reducing the heat conduction, so that the indoor temperature is more stable, reducing the energy consumption due to heat loss or intrusion.

Second, the choice of high-quality materials to build the foundation of heat preservation

Outer plastic: the “first line of defense” for heat insulation

The outer layer of aluminum-plastic co-extruded doors and windows is made of plastic, usually polyvinyl chloride (PVC), which has good thermal insulation properties and can effectively block some of the incoming and outgoing heat. In addition, special insulation additives added during the production process further enhance the insulation effect of the outer layer of the plastic. These additives optimize the molecular structure of the plastic, enhance its ability to block heat, and reduce the rate of heat transfer from the source.

Aluminum alloy skeleton: stabilizing the heat-insulating structure

The aluminum alloy skeleton inside the window or door not only provides sturdy support for the window or door, but also plays an important role in heat insulation. Although aluminum alloy is a good conductor of heat, its effect on heat conduction is effectively reduced through scientific combination with plastic and heat-insulating strips. High-quality aluminum alloy after surface treatment, can reduce heat radiation, with the overall thermal insulation design, to ensure that the doors and windows have high strength at the same time, does not affect the thermal insulation performance.

Third, good sealing performance, reduce heat loss

Sealant strip: to eliminate heat “leakage”

Aluminum-plastic co-extruded doors and windows in the installation process, the use of high-quality sealing tape for sealing. These sealant strips have good elasticity and weather resistance, and can closely fit the gap between the door and window frames and fans, as well as the gap between the door and window and the wall. The application of sealing rubber strips effectively prevents air convection, reduces heat exchange due to air flow, avoids heat “leakage”, and further enhances the thermal insulation performance of doors and windows.

Fine installation: ensure sealing effect

Correct installation process is crucial for the thermal insulation performance of aluminum-plastic co-extruded doors and windows. Liaoning Muhan's professional installation team carries out the installation in strict accordance with the standard process to ensure that the gaps between the door and window frames and the wall are filled to the brim and the sealant is evenly applied to avoid problems such as air leakage and water seepage. Only when the installation is in place, can give full play to the thermal insulation advantages of doors and windows, to create a comfortable indoor environment for users.

In summary, aluminum-plastic co-extruded windows and doors achieve efficient heat insulation through scientific structural design, high-quality material selection, and good sealing performance, a multi-pronged approach. Liaoning MOHAN New Material Co., Ltd. will continue to innovate and optimize the performance of the products to provide customers with better and more energy-saving aluminum-plastic co-extruded windows and doors and help the construction industry to move towards a new journey of green and low-carbon development.