Supply high viscosity 107 silicone rubber and 107 adhesive to support customized viscosity

Description :

　　Supply high viscosity 107 silicone rubber and 107 adhesive to support customized viscosity

　　Hubei Xinsihai Chemical Co., Ltd., a manufacturer of 107 room temperature vulcanized silicone rubber, is a conscientious enterprise with 23 years of production experience and sales. The consultation hotline is 1570451276. Manager Wang provides technical services for domestic and foreign enterprises in the fields of electronic potting glue, electronic photovoltaic glue, and exports in large quantities. The products are widely used as sealing materials or insulation materials for electronic components, moisture-proof, shockproof, high-temperature resistant potting and sealing materials for instruments and meters, and can also be used as soft molds for plastic and low melting point metal molding. Free sample testing is available.

　　α. ω - dihydroxypolysiloxane is the base adhesive of two-component and one component condensed silicone rubber, commonly referred to as 107 adhesive in the market. This raw rubber can be directly used as a commodity and can be used as an intermediate to produce various condensed silicone rubber products

　　High viscosity 107 silicone rubber is produced using a continuous production process, which involves connecting three static mixers in series to form a continuous production process. As shown in the figure. Dimethyl cyclic siloxane is first preheated, then dehydrated in a degassing tank, and pumped through a catalyst mixer to a static mixer. Mix the material with the catalyst (potassium siloxane solution) in the mixer. The temperature of the mixer is 180-190 ℃, the pressure is 1.16MPa, and the residence time of the material is 17-24 minutes. Measure the amount of water added here. Subsequently, a solution prepared with phosphoric acid and siloxane is used for neutralization treatment in the second static mixer or neutralizer; The material added with neutralizing agent enters the third static reactor for further neutralization. Neutral materials are passed through a pressure regulating valve, heated to increase their temperature, and then enter a volatile removal device to remove low molecular weight polydimethylsiloxane from the polymer under vacuum.

　　107 room temperature vulcanized silicone rubber high viscosity 107 silicone rubber

　　This product is non-toxic, odorless, and non corrosive. It is vulcanized into elastic silicone rubber at room temperature by adding an appropriate amount of initiator and crosslinking agent. Widely used as sealing or insulation materials for electronic components, moisture-proof, shockproof, high-temperature resistant sealing and sealing materials for instruments and meters, and also as soft molds for plastic and low melting point metal molding.

　　Main performance

　　Appearance: Colorless transparent flowing liquid

　　Volatile matter: 150 ℃, 3h,% ≤ 2.0

　　Viscosity: 25 ℃ mPa. s 800-100000,

　　Note: If the viscosity range you require is different from the above, our company can customize it for you.

High viscosity 107 silicone rubberInstructions for use

　　Add 1-5% catalyst and 5-8% crosslinking agent to 107 room temperature vulcanized silicone rubber, and stir evenly;

　　If there are no bubbles in the product, it should be depressurized to remove bubbles;

　　Generally, at room temperature, the surface does not stick to hands after two hours and can peel off after 10-12 hours. But to achieve high molding quality, the casting compound in the mold should be left at room temperature for 2-3 days before being released from the mold.

　　The vulcanization time is affected by temperature, humidity, and the amount of crosslinking agent and curing agent added. Before use, a small sample simulation test should be conducted to adjust the formula;

　　When using this product as an adhesive, the surface of the adhered material needs to be cleaned, oil stains removed with a solvent, dried, and coated with a surface treatment agent before applying this product.

　　High viscosity 107 silicone rubber is mainly used

　　Elastic high-temperature resistant sealing coating, impregnation, filling, mold stamping

　　According to different vulcanization methods, silicone rubber can be divided into high-temperature vulcanization (hot vulcanization)

　　Room temperature vulcanized silicone rubber

　　Room temperature vulcanized silicone rubber

　　）Silicone rubber and room temperature vulcanized (including low-temperature vulcanized) silicone rubber are two major categories. Regardless of the type of silicone rubber, there is no heat release during vulcanization. High temperature vulcanized silicone rubber is a high molecular weight polydimethylsiloxane (generally with a molecular weight of 400000 to 800000), while room temperature vulcanized silicone rubber generally has a lower molecular weight (30000 to 60000).

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• High viscosity 107 silicone rubber