More Glass Process Accessories You should Know

Combined of composite materials, the warm edge spacer with flexible bonding support and containing desiccant has been widely used in the fields of doors, windows and curtain walls due to its excellent thermal insulation properties, reliable sealing performance, and beautiful appearance. It has been widely used; especially in recent years, passive ultra-low energy consumption buildings have flourished in developing country, making flexible warm edge spacers widely used in the market. This article expounds the influence of flexible (super) warm-edge spacer insulating glass technology on energy-saving doors and windows, and conducts a detailed comparative analysis through simulation, test experiments and other data, and has important implications for the application and design of flexible (super) warm-edge spacers

In the production of insulating glass, the super aluminum spacer only replaces the normal aluminum spacer of ordinary insulating glass. The super spacer contains 40% molecular sieve, and both sides of the spacer have been coated with acrylic structural adhesive, so the process of installing molecular sieve and butyl sealant is omitted in the production process, and molecular sieve and butyl sealant are also omitted.

It is believed that in the future after the corresponding policies and standards of various countries are promulgated, the market of desiccants for insulating glass can be regulated and rectified. At the same time, with the development of the industry, maturity of technology, and standard specifications, new desiccants will also be continuously developed and applied to insulating glass.

A molecular sieve (also known as synthetic zeolite) is a kind of aluminosilicate microporous net-like crystal material, composed of SiO2 and Al2O3 tetrahedrons, with uniform pore size (about a few angstroms) and a huge specific surface area. There are metal cations (such as Na+, K+, Ca2+, etc.) in the molecular sieve lattice to balance the excess negative charges in the tetrahedron. Different types of molecular sieves have different pore sizes or shapes and can be used to separate various molecules.

In actual use of silicone sealant, the bonding performance is one of its most basic and important properties. It is related to the durability of the seal and even the safety of the building components. It requires the interface interaction between the silicone sealant and the adherend to produce good adhesion relay.

The spacer solves the contradiction between energy-saving and durability of insulating glass at the same time, causing a revolution in the insulating glass industry, greatly improving the energy-saving effect and service life of door and window glass. At present, the super spacer has been widely used in developed countries such as Europe and the United States. With the improvement of building energy-saving requirements in my country, super spacers will be widely used.

Sealant for insulating glass does not account for a high proportion of the cost of insulating glass, but it is very important for the durability and safe application of insulating glass. So how to choose the better insulating glass secondary sealant?

With the popularity and development of insulating glass, tens of billions of funds are spent around the world every year to replace old and failed insulating glass. This huge waste will seriously hinder the development of energy-saving production and green ecology. Therefore, as the core material in the processing of insulating glass auxiliary materials, molecular sieve desiccant plays a leading influence on the service life of insulating glass.

It is necessary to conduct a detailed analysis of the factors affecting the bonding performance of silicone structural sealants, and obtain through scientific experiments the effects of silicone structural sealants on ultraviolet radiation, moisture, high temperature, and tension. The attenuation value of bonding performance under conditions such as elongation can be used to understand the aging law of silicone structural sealants and optimize and upgrade them in a targeted manner.

LIJIANG Glass aims to describe the basic content of the sealing structure of insulating glass, discuss the changes in the market share of insulating glass sealants and their reasons (basic reasons and fuse), the concept, characteristics, and advantages of the new sealant, including physics, economy, and technology.

As a professional manufacturer of insulating glass processing equipment, LIJIANG Glass is also willing to extract one of the various raw materials for making insulating glass for in-depth analysis, to call on insulating glass manufacturers to strengthen their quality awareness, pay attention to the selection of raw materials, and protect the interests of users.

Needless to say, the energy saving of insulating glass is related to its sealing effect. Whether insulating glass can save energy in the long term depends on the sealing life of insulating glass. When the sealing of insulating glass fails, condensation occurs in the air layer of the insulating glass. There are two results: (1) The liquid state after the condensation of gas-phase water has a greater thermal conductivity than air; (2) The gas in the glass air layer has microcirculation, that is, thermal convection.

Organic sealant has a long history of application as a second seal for insulating glass and has been used to this day. Therefore, in the minds of most people, it has always been believed that insulating glass sealed by organic sealant has the best resistance to water vapor permeability.

Through the comparison of insulating glass energy saving and structural calculation, it is not difficult to find that the heat transfer coefficient of insulating glass using a warm edge is relatively low. Since the thermal conductivity of each unit glass is comprehensively evaluated, and the general thermal conductivity calculation is affected by the frame, in other words, the thermal conductivity of the frame is reduced, and the corresponding glass part can reduce the energy-saving effect, and the corresponding glass size can be reduced.