Dealcoholization single component silicone rubber, because the single component silicone rubber in the vulcanization to form elastomers release small molecular alcohols (methanol/ethanol) named. At present, there are two kinds of single-component alcohol silicone rubber in the market: ethanol type and methanol type. Among them, ethanol type is mainly used in industrial electronics industry, while methanol type is widely used in construction and industrial electronics. Compared with acid and oxime type, the biggest advantage of alcohol-based silicone rubber lies in the non-corrosion, environmental protection and low smell of alcohol-based small molecules released by it, which makes its application scope wider and become the mainstream product

Ethanol gum, release small molecule CH3CH2OH, commonly known as Nanta gum, α silane system catalyzed. Basic formula: 107 silicone rubber, α silane crosslinking agent, powder, silane coupling agent. Its vulcanization mechanism: 107 silicone rubber +α silane crosslinking agent + water vapor → network elastomer.

Advantages and features:

dry curing fast, slightly lower smell, simple process, no corrosion, because these advantages can improve the production line application efficiency, so it is especially suitable for consumer electronics application industry, such as fixed circuit board, electronic components, lamp plug fixed applications.

Disadvantages:

Yellowing resistance, resistance to double 85 poor performance, high volatile content, so that its application in lighting, automotive electronics and other industries limited; Because its surface dry too fast (generally about 3-5min) limited, easy to yellow, ethanol rubber is difficult to apply to the construction industry (too late leveling, dressing is the crust). Existence type: flame retardant glue this type of existence is the most widely used in electronic components fixed; General adhesive small household appliances, electrical appliances bonding sealing waterproof; 704, etc. Thermal conductive adhesive process is simple: 107 can be directly used to prepare ethanol thermal conductive adhesive; Transparent adhesive with yellowing resistance and halogen-free transparent adhesive can be prepared by choosing the appropriate α silane crosslinking agent; Used for bonding, sealing and coating; Manufacturers: Evergrande, Hutian, Anpin, Jiaduobao, Jiadi, Xingyongwei, Opte, Eastcom, etc. Summary: Ethanol glue occupies an important position in China's consumer electronics application industry. Almost all electronic glue enterprises in South China start with ethanol glue and gradually develop. Even in today's market, ethanol glue still occupies a large proportion and cannot be ignored. But objectively speaking, the emergence of ethanol glue has reduced the threshold of the silicone adhesive industry, making the high-tech industry uneven and limited in the development of technological breakthroughs. More RESEARCH and development technicians focus on the deployment side, cost reduction and other aspects, with few substantive breakthroughs. Ethanol glue needs to seek a new transformation, it is ultimately a backward product.