Not any one substance can be used as an adhesive, the adhesive must meet the following requirements:
1. No matter what kind of form, it should present liquid state when coated.
2. Ensure that the surface of the object to be adhered to can be fully infiltrated.
3. Must be able to make the transition from liquid to solid state, the formation of a tough adhesive layer.
4. Have a certain strength after curing, can transfer stress and resist damage.
5. Be able to withstand a certain amount of time.
Adhesive can be directly several materials firmly bonded together, with the development of synthetic chemical industry, there are many types, according to the chemical composition to points, then, can be divided into the following kinds:
1. Acrylic adhesives, multiple curing methods, a variety of parts bonding, more rapid positioning and curing, more excellent bonding strength.
High performance acrylic adhesives. Unique performance and wide range of applications, designed for structural bonding, electronic wiring reinforcement, electronic components fixed sealing. With good adhesion, toughness, good weather resistance and other characteristics. A variety of different viscosity, hardness, color options, easy to apply, fast curing, improve assembly efficiency.
2. Polyurethane adhesive, in a variety of surfaces with strong adhesive force, the same or different materials bonding more firmly and reliably.
cham polyurethane adhesive series bonding and toughness can be adjusted, and has excellent bonding strength, temperature resistance, chemical resistance and aging resistance. It covers hot melt adhesives, reactive structural adhesives, solvent-based three-proof adhesives and other product types. For metal, rubber, glass, ceramics, plastics, wood, fabric, leather and other materials have excellent adhesive properties.
3. Epoxy adhesive, bonding strength and mechanical strength is particularly excellent, temperature resistance and chemical resistance is not uncommon, substrate applicability is equally wide.
According to the difference in product type, different products can be room temperature curing can be heated and fast curing, curing with very high bonding strength and mechanical strength, excellent temperature resistance, chemical resistance. Can be used for electronic parts and structural components of the bonding and fixation, sealing protection, device protection.
4. Mechanical silicon adhesive has good sealing and bonding properties, tolerance of weathering, low temperature to -60 β, high temperature to 200 β, it can be easily.
According to the different types of products, respectively, with excellent temperature resistance, insulation and other core properties, but also has good sealing and bonding properties. It is widely used for fixing reinforcement of electronic components, cavity sealing, waterproof protection, etc. It is also suitable for sealing, filling, bonding and encapsulation in high temperature applications, such as high temperature kitchen appliances, thermoelectrics, air purifiers.
Adhesives can be used in all aspects of daily life and production, such as epoxy structural adhesive can be used for electronic parts and fasteners bonding fixed, RTV silicone can be used for electronic components fixed reinforcement, PUR hot melt adhesive can be used for cell phone shell bonding.
Room termperature curing polysilazane, pls check
IOTA 9150,
IOTA 9150A.
High termperature curing polysilazane, pls check
IOTA 9108,
IOTA 9118.