What are the advantages of silicone structural adhesive
Structural adhesive refers to high strength (compressive strength>65MPa, steel-steel positive tensile bonding strength>30MPa, shear strength>18MPa), can withstand large loads, and is resistant to aging, fatigue, corrosion, and within the expected life Stable performance, suitable for adhesives that withstand strong structural parts bonding.
Use advantages of structural adhesive
Structural adhesive has high strength, anti-stripping, impact resistance, and simple construction process. Used for bonding materials of metal, ceramic, plastic, rubber, wood equivalent or different materials. It can partially replace the traditional connection forms such as welding, riveting and bolt connection. The stress distribution on the joint surface is even, and there is no thermal influence and deformation on the parts.
Structural adhesives are widely used in engineering, mainly used for the reinforcement, anchoring, bonding, repairing of components; such as sticking steel, sticking carbon fiber, planting reinforcement, crack reinforcement, sealing, hole repair, road nail sticking, surface protection, concrete Bonding, etc.
Structural adhesive performance advantages
1. Uniform stress distribution and high degree of freedom in material selection
First of all, when using structural adhesive, the stress can be evenly distributed on the entire bonding surface, eliminating the stress concentration problems caused by traditional spot welding, riveting, bolt fixing and other methods. Therefore, lighter and thinner materials can be used without loss of component strength. Secondly, it can effectively bond different materials and improve the overall performance. Then, different materials can be made into a laminate by bonding with structural glue, which can perfectly combine the strength and comprehensive performance of each material. At the same time, the toughness of the structural adhesive can effectively solve the problem of inconsistent thermal expansion coefficients between different materials in applications, such as the bonding application of aluminum and glass. Structural adhesive can also be used as an isolation layer to reduce or even eliminate the problem of electrochemical corrosion between different metals.
2. Reduce surface defects and save repair costs
Components assembled using structural glue can maintain component integrity and eliminate surface defects caused by mechanical joints and welding. The use of structural adhesive bonding can greatly improve process design flexibility and reduce trimming work. Structural adhesive can also provide the best fatigue performance, and the excellent toughness of the adhesive can allow the component to be repeatedly stretched and recovered under repeated stress. The energy absorption of the adhesive ensures the fatigue resistance of bonded parts up to 20 times that of welded or riveted parts. The integral continuous connection of the assembled parts by bonding can ensure effective bonding and sealing in the working environment.
3. Reduce costs, environmental protection and high efficiency
Choosing structural adhesive bonding can reduce costs while simplifying the production process. Adopting the bonding process can reduce the requirements for the base material, reduce the weight, and eliminate drilling, welding, screw fixing and similar processes, and ultimately reduce costs while improving production efficiency. Only a small amount of training is required to operate, and the use of structural adhesives to bond through primer or coated materials does not produce harmful solvent emissions. Compared with traditional connection methods, structural adhesives have shown excellent advantages in terms of cost, production efficiency, light weight and performance. In most production applications, structural adhesives can provide parts with higher strength and longer life.
Main types of structural adhesive
1. High-performance silicone structural adhesive
High-performance silicone structural adhesive is a one-component, neutral curing, designed for structural bonding and assembly in building curtain walls. It can be easily extruded and used under a wide temperature range, relying on the moisture in the air to cure into an excellent, durable, high modulus, high elasticity silicone rubber.
2. Neutral transparent silicone structural adhesive
A single component, neutral curing, designed for the bonding and assembly of glass structures in building curtain walls. Can be easily extruded and used in a wide temperature range. Rely on the moisture in the air to cure into an excellent, durable, high modulus, high elasticity silicone rubber. The product does not need a primer for glass, and can produce excellent adhesion.
3. Building structural adhesive
Because of its excellent performance, building structural adhesives are widely used in construction and installation, decoration, sealing, structural adhesives and other fields.