Customization: | Available |
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CAS No.: | 7085-85-0 |
Formula: | C6h7no2 |
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INTRODUCTION OF 495 SUPER GLUE |
Principle of CA Super Glue |
Cyanoacrylates are a family of strong fast-acting adhesives with industrial, medical, and household uses. They are derived from ethyl cyanoacrylate and related esters. The cyanoacrylate group in the monomer rapidly polymerizes in the presence of water to form long, strong chains. The most common monomer is ethyl cyanoacrylate. Several related esters are known. To facilitate easy handling, a cyanoacrylate monomer is frequently formulated with an ingredient such as fumed silica to make it more viscous or gel-like |
In general, the C=C groups rapidly undergo chain-growth polymerisation in the presence of water (specifically hydroxide ions), forming long, strong chains, joining the bonded surfaces together. Because the presence of moisture causes the glue to set, exposure to normal levels of humidity in the air causes a thin skin to start to form within seconds, which very greatly slows the reaction; hence, cyanoacrylates are applied as thin coats to ensure that the reaction proceeds rapidly for bonding. Cyanoacrylate adhesives have a short shelf life-about one year from manufacture if unopened, and one month once opened |
Advanges |
Features |
Application |
How the temperature and humidity influence Curing Speed? |
Both the value of temperature and humidity have the big influence to the curing speed, the value of this 2 items is much higher, the curing speed will faster, while the strength maybe a little bit down, the ideal usage environment is around 25°c and 50%~60% relative humidity. |
How the temperature influence Elongation Strength and Shelf Life? |
As the temperature have a close relationship with the elongation strength and the shelf life, so when you get the goods, better to apply and store at the normal temperature range and keep it cool conditions will be helpful for the shelf life and the performance of the glue. |
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