Explain the use of liquid silicone silicone printing manufacturer
Date:2015-11-27 00:00 Source:http://www.cainir.com Click:
Liquid silicone rubber can be used for coating, dipping and perfusion.Such as viscosity of 0.07 ~ 50 mpa seconds / 25 ℃ hydroxy end capping of poly dimethyl siloxane, using methyl vinyl pyrrolidone silane for the chain extension agent, organic peroxides, such as two benzoyl peroxide, 25 - dimethyl base 5-2 tertiary butyl peroxide hexane as vulcanizing agent, this kind of rubber good liquidity, low viscosity, in the vulcanization process of chain growth reaction at the same time, it can obtain high molecular weight of the elastomer, has the good physical and mechanical properties.Chain extension agent methyl vinyl pyrrolidone silane, can be composed with methyl vinyl pyrrolidone dichloride silane reaction and, in the presence of triethylamine between product easy to hydrolysis, therefore, should be stored in dry sealed container, the compound of pyrrolidone base at room temperature with polydimethylsiloxane hydroxyl-terminated slow reaction, the reaction rate increases with temperature and speed up.
Silicone Printing Manufacturers say in theory, this reaction can be continuous, until the molecular weight of the infinite.Methyl vinyl pyrrolidone the vinyl silane also can be used as the curing reaction activation point, can cause polydimethylsiloxane crosslinking, generate high molecular weight of the elastomer.Because pyrrolidone and hydroxy reaction at room temperature is very slow, so after joining components by mixing rubber has a long shelf life, within an hour of rubber viscosity basically remain unchanged, but still keep a good liquidity, but into tiny pore in.After mixing the rubber when heated to 150 ℃ for 10 minutes sulfide into elastomer.
1, injection molding liquid silicone rubber (LSR) : the full name for the injection molding liquid silicon rubber, curing equipment for injection moulding machine.Injection molding machine has A technological process is very simple, need not be in the process of high temperature glue ingredients, mixing, blanking, material and process, only one of the workers take products), high precision products (molding before all the manual program be replaced by A machine), high output (A/B glue mixing under A certain temperature for A few seconds to shape), save people, save electricity, save material and so on many advantages, can produce all the products of high temperature glue!Is a mainstream in the development of silicone rubber material in coming years.
2, mold silicone rubber (RTV - 2) : used for arts and crafts and the low alloy forming dies.
3, electronic silicone rubber (RTV) : used for electrical components of moisture, insulation back plate and heat dissipation material.
4, sealant (RTV 1) : also known as glass glue, used for building sealing, waterproof engineering, aluminium adhesive, electronic and lighting, etc
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