Anaerobic adhesive formulations
anaerobic adhesive is an acrylic ester as the main component of the adhesive, it is contact with oxygen or air will not cure, but once cut off from the air, it will soon be cured, it said such adhesives as anaerobic adhesive. Anaerobic adhesives are single component, there are pairs of components. For some active metal bonding, metal surface due to the release of transition metal ions play a catalytic role, it can be a single component anaerobic adhesive. Used for bonding to other equipment materials, you need to add a small amount of catalyst to accelerate pouch anaerobic solid in order to overcome the resilience is not high, long curing time disadvantage, and foreign have been successfully developed new catalyst systems and additive systems, not only to overcome these shortcomings , but also in impact strength, heat resistance, sealing, etc. has been greatly improved. 1. Characteristics and uses (1) The agent is a single fluid type, viscosity is small, easily saturated; no solvents, toxicity, pollution small. (2) The agent at room temperature fast curing, high strength and good sealing; heat resistance, solvent resistance, alkali resistance and other excellent performance. (3) easy to use, storage, a long period. The agent used in sealing, bonding,thick yoga mat, fastening, etc. Anti-loose. For example, pipe thread, flange and mechanical box with leak-proof sealing surface, anti-locking bolts loose; bearings and bushings, gears and shaft plug-ins, inserts and other assembly fixed; casting, welding pieces of trachoma stomatal infiltration tamponade, a variety of products such as parts of the structural bonding. 2. Raw equipment materials (1), ethylene glycol dimethyl acrylate colorless liquid. Freezing point of a 42 ℃, boiling point 92 ℃, the density L 054g/CiTia, flash point 47 ℃. Soluble in organic solvents, slightly soluble in water. In this agent as a crosslinking agent. Selected industrial products. Production Factory: Suzhou People’s Chemical Plant, Shanghai, Coral Chemical Plant. (2), hydrogen peroxide, also known as glycosylation cumene peroxide hydroxyanisole Su, cumene hydroxy peroxide. Colored or light yellow liquid. Boiling point of 53 ℃, density of 1.0619 s/C1T13, flash point 79 ℃. Soluble in alcohol, acetone, esters, hydrocarbons and chlorine hydrocarbon, slightly soluble in water. pouch agent used as a catalyst, cross-linking agent. Use of industrial crystallization. Production Factory: Shanghai Reagent Plant. (3) saccharin See II (5) disinfection rinse agent Ⅱ. The agent used as a flavoring agent. Selected industrial products. General stores for sale. (4) N, N-dimethyl-p-toluidine yellow oily liquid. Boiling point 210-211 ℃, density 0.9287 g/cm2, flash point 83 ℃. Soluble in common organic solvents and dilute acids yuan machines. The agent used as a curing agent. Selected industrial products. Production Factory: Harbin Dental Equipment Factory, Shanghai Reagent 3 Plant, Tianjin Chemical Reagent Factory. (5) peroxide Di-tert-butyl peroxide tert-butyl ether, also known as. Colored liquid. Density 0.794g/cm ‘, a melting point 40 ℃, boiling point 11l ℃, flash point 18 ℃. There can be dissolved in solvents, almost insoluble in water. Flammable. The agent used as a catalyst. Selected industrial products. Production Factory: Shanghai Reagent Plant. 3. Formula (quality copies) glycol methacrylate 100 cumene hydrogen peroxide base of four saccharin 0.4 N, N-dimethyl-p-toluidine 0.3-di-tert-butyl peroxide 200ppm * 4. Preparation of and how to use the proportion of the various equipment materials according to formula mixture, stirring mixing Serve finished. In isolated air-condition, room temperature curing time is about lOmin. Pu can be stored in an isolated space, its bonding strength the same
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