JCT Machinery, produce chemical mixer since 2006.
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JCT Machinery, produce chemical mixer since 2006.
1. Curing Mechanism
Acidic silicone sealant is usually cured by moisture, that is, when silicone sealant comes into contact with moisture in the air, a chemical reaction occurs to form a strong siloxane polymer. A small amount of acetic acid (acidic substance) is released during curing.
2. Excellent Bonding Performance
Acidic silicone sealant has strong bonding properties and can be firmly bonded to a variety of substrates such as metal, glass, ceramics, wood, plastic, etc. It is particularly suitable for bonding and sealing non-porous materials.
3. Good Temperature Resistance
Acidic silicone sealant has good high temperature resistance and can generally work stably between -40℃ and +150℃. Some high-quality acidic silicone sealant also have a higher temperature resistance range.
4. Good Weather Resistance and UV Resistance
Acidic silicone sealant has strong tolerance to UV rays, oxidation, ozone and various climatic conditions. It can withstand long-term outdoor exposure and will not age, yellow or lose adhesion.
5. High Elasticity
Silicone sealant has high elasticity and can maintain good tensile properties after curing. It is suitable for sealing applications that require a certain elasticity or displacement.
6. Strong Chemical Corrosion Resistance
Acidic silicone sealant has strong resistance to most common chemicals (such as water, acid, alkali, solvents, etc.). It can effectively resist certain chemical corrosion and is particularly suitable for waterproofing, anti-penetration sealing and other occasions.
7. Good Waterproofing
Acidic silicone sealant has good waterproofing and is widely used in sealing window frames, exterior walls, bathrooms, kitchens and other places to prevent moisture penetration.
• High Shear Mixing: Use a double planetary mixer to mix the raw materials. 107 glue, crosslinker and catalyst are the main mixtures, which need to be efficiently stirred in the mixer to ensure that all ingredients are evenly distributed.
• Temperature Control: Some raw materials may need to be mixed with temperature control when added.
After mixing, use vacuum degasser to degas the mixture. By extracting air from the mixture, remove bubbles from the rubber.
Degassing can prevent the generation of bubbles during the curing process, which can improve the density and appearance quality of the product. Generally, a vacuum chamber is used to reduce the air pressure of the mixture and promote the escape of bubbles from the colloid.
We are professional mixing manufacturer, providing sigma mixer, reactor, dual shaft mixer, etc .
