High Temperature Resistant Silicone Adhesive

Sep 22, 2021

Common high temperature resistant glues can be divided into organic high temperature resistant glues and inorganic high temperature resistant glues according to their properties.
1. Common organic high temperature resistant glue:
The common temperature resistance of the common high-temperature glue is limited to below 400℃, and it mainly includes silicone glue, phenolic resin glue, urea-formaldehyde resin glue, temperature-resistant epoxy glue, polyimide glue, etc. This type of glue can be soft and elastic, or tough, or hard and rigid. This type of glue can generally be used as a functional filler to provide insulation, heat conduction, magnetic conductivity, fire resistance, flame retardancy and other functions. The bonding strength of high temperature resistant epoxy adhesive is quite high, the results of temperature resistance and high speed operation are very good, and the aging resistance is excellent, so it is used in the fields of aircraft model motors, functional ceramics, etc., and the results are very prominent.
2. Common inorganic high temperature resistant glue:

The temperature resistance of inorganic high temperature resistant glue can reach 1800℃, and it can be used for a long time in the fire. It breaks the global technical problem that high temperature resistant adhesives can only withstand temperatures below 1300℃. High temperature resistant inorganic adhesives are an application The high-temperature resistant inorganic nanocomposite binder made of inorganic nano materials by polycondensation reaction. After selecting the composition ratio and preparation process parameters, the obtained binder is a suspension dispersion system with a neutral pH value, which is not only a strong bonding force. And it is non-corrosive to the metal matrix, and can maintain superior bonding function and corrosion resistance at high temperatures, and has a long service life. The high temperature resistant inorganic adhesive is convenient to use and can be used for direct bonding of high temperature resistant materials.

The coating can be directly sprayed on the surface of the substrate at a high temperature of 400-1000℃. When the moisture evaporates, the coating will instantly adhere to the surface of the substrate. The high temperature resistant maintenance coating is evenly dense, with good thermal shock resistance and obvious protection results.

High temperature resistant expansion rubber can be fire-resistant and high temperature resistant. High temperature resistance is made by using inorganic nanomaterials to carry out chain extension and material transformation reactions at high temperatures. It is an irreversible crystal transformation. It is the latest high-temperature expansion technology of inorganic materials. The linear expansion rate of glue can reach 15%. And no shrinkage occurs after cooling. Selection of high-temperature resistant swelling glue: using special high-temperature inorganic silicate solution, the temperature can reach 1800℃, and it can be fire-resistant barbecue. The materials are selected and refined by refined rare earth oxides, re-expanded mullite, gasified SiO2 powder, etc. .

The glue can withstand temperatures of 1500°C or higher, with a thermal conductivity of 0.06w/m·k, and can be used as a coating material for ceramics, glass, metals, etc. Spray on
The surface of metal, quartz and other objects, low temperature drying, very good adhesion, hard, non-cracking, non-foaming, resistant to high temperature of 1500 degrees, can be used on iron, steel, quartz, ceramic, glass and other surfaces. Especially in the quartz heating tube, it is specially used. The surface of the quartz heating tube is coated with a high-temperature-resistant white reflective coating, which greatly enhances the thermal effect of short-wave infrared. The energy is not lost on the reverse side, which truly plays the role of environmental protection, efficiency and energy saving. It has a reflection function and can more effectively use infrared radiation. The infrared utilization rate can be as high as 75%. The infrared output is increased, and the infrared intensity is higher. Therefore, it is more energy-saving, environmentally friendly and pollution-free, pure inorganic material, no organic gas volatilization, and environmental protection. Features: Appearance: white, viscous liquid. Content: ≥90%, the highest temperature resistance: 1500℃, it can withstand 1800℃ or even higher in a short time. Surface dryness: 0.5 hours, minimum recoating interval: 2 hours Hardness: 5H, good oil resistance; acid and alkali resistance. High temperature resistant coating material, coating thickness: according to the customer's own needs, it can be any thickness, but the construction process must be layer by layer

Spraying or brushing of the layer, if you need to apply a thicker thickness, you can apply the first layer first, the thickness can be controlled at 1-5mm, and then after the low temperature about 70 ℃ or the room temperature is completely dried, the second layer can be applied , Followed by the third layer and the fourth layer. It can be used at high temperature only after it is completely dried.