Insulated rubber sheet-metal bonding presentation

Bonding insulated rubber sheet metal in many industries aerospace, textile, electronic, mechanical, electrical and other to be more widely used, although it is not less than the bond strength of vulcanized rubber, but with no additional equipment, simple process advantages.

Bonding insulated rubber sheet-metal cold sticky sticky heat two, which is more commonly used cold bonding. Adhesive bonding must be carried out, the commonly used adhesive chloroprene - phenolic, Nitrile - phenolic, silicone, nitrile - epoxy, acrylic, cyanoacrylate, etc., wherein chloroprene - phenolic adhesives have called all-purpose adhesive.

Insulated rubber sheet, rubber sheet metal bonding process is generally: vulcanized rubber surface is polished, solvent cleaning, process loop, oxidation, isocyanates; metal surface can be polished, solvent cleaning after blasting to be chemically treated or anodized treatment, post-treatment should be brushing as soon as the adhesive, drying, laminating, rolling or add a certain pressure, at room temperature or heat curing, curing time depends on the choice of adhesive, rubber plate with a number of product applications, this process is very important .

1. chloroprene - phenolic adhesive formulation of the adhesive universal neoprene 100, 5 zinc oxide, magnesium oxide 4, alkyl phenol resin 45, an appropriate amount of toluene. Chloroprene rubber adhesive is generally used LDL-240, LDJ231 or both. The adhesive has a crystallization speed, good tack, 1-2h to obtain a higher bonding strength after bonding, has heat resistance, chemical resistance, is sunlight and ozone aging properties.

2. NBR - vulcanized nitrile phenolic adhesive for cold bonding of rubber and metal. Common nitrile rubber -40 and more reactive resorcinol-formaldehyde resin as the main raw material, adding a vulcanizing agent paraformaldehyde at room temperature vulcanizing can quickly make solid metal and rubber adhesive. B is usually divided into two components, namely packaging.