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[China Glass Network] As more and more people realize that insulating glass has a significant effect on energy saving, the application of insulating glass in China is increasing, and it is still in the ascendant. However, as important as energy saving is the sealing life of insulating glass, people do not give due knowledge. Obviously, the difference in energy saving effect and sealing life of different insulating glass structures is great. The energy-saving effect of insulating glass does not necessarily mean that its sealing life is long, and vice versa. Insulating glass with poor sealing life (short) not only affects the visibility of the glass itself, but also affects the energy saving effect of the insulating glass. This paper aims to discuss the energy saving and sealing life of insulating glass, reveal the relationship between the two, and introduce the application of warm edge technology and the newly emerged reactive hot melt equivalent to double sealant in insulating glass.
Several factors affecting the energy saving of insulating glass: window material and design; glass selection such as low-emissivity glass; warm edge technology; inert gas such as argon; air layer separation distance. Several factors affecting the life of insulating glass seals: the choice of insulating glass glue; the sealing structure of insulating glass; the spacer strip such as warm edge technology; desiccant; work quality; quality control. It can be seen that there are many factors that affect the energy saving effect and sealing life of the insulating glass. But in the final analysis, it can be divided into two categories: reasonable structure and processing quality of personnel. For a good structure, the sealing life of the insulating glass should theoretically be longer than the bad structure; the unfavorable structure, no matter how high the processing quality of the personnel, is difficult to improve the hollowness. The sealing life of the glass. In other words, it is difficult for people to make a well-conceived design structure, and there is no reason for the inner structure of the design to have a long insulating life of the insulating glass. For a bad structure, it is impossible to improve the sealing life by improving the quality of the personnel; and for a good structure, when the sealing life is poor, people can achieve the goal by improving the processing quality of the personnel. The specific analysis is as follows.
First, energy saving of insulating glass
Under other conditions, the arrangement of the insulating glass elements directly affects the energy saving effect of the insulating glass. The main components are the glass, the gas in the air layer, and the spacers of the air layer. Needless to say, the energy-saving effect of the insulating glass using low-emissivity glass, argon-filled gas and warm-side spacers is superior under the same conditions. It is hard to imagine that people can increase the energy-saving effect of insulating glass using ordinary float glass white glass filled with air-cooled spacers to the same energy saving effect as the previously configured insulating glass.
Second, the sealing life of insulating glass
Compared with the energy saving of insulating glass, the sealing life of insulating glass is more complicated. Under other conditions, the insulating glass manufacturing material that affects the insulating glass sealing structure directly affects the sealing life of the insulating glass. The main materials include: desiccant, seal structure design, sealant and structural adhesive selection, spacer selection. In general, a good design should use a two-pass seal structure, a suitable desiccant (defined as not adsorbing gas in the air layer but adsorbing moisture and volatile organic compounds in the air layer), sealant with low water vapor transmission rate, and shear The peeling tensile strength is good for the structural adhesive, and the corner strips with no corners continuously. For the same reason, under the same conditions, the sealing life of the insulating glass with such a good design will be longer than that of the poorly designed insulating glass. It is not difficult to imagine that it is impossible to increase the sealing life of an insulating glass that does not have such a good design as long as the sealing life of a well-designed insulating glass. In extreme cases, the sealing life of insulating glass with such a good design did not reach the expected level. However, this situation does not mean that the design itself has problems, but it must be caused by problems in the processing quality of the processing personnel. In this case, the improvement of the sealing life of the insulating glass can often be achieved by improving the artificial quality of the insulating glass production and strengthening the quality management.
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