Polyethylene to metals

High-pressure, low-density polyethylene, LDPE, was blended with cyclOTubber, to give compounds useful for bonding polyethylene to metal... 

A well knoiw method, grafting, has been used to improve adhesion of polypropylene, and polyethylene to metals. Schultz et al. show that the addition of acrylic acid can enhance the adhesion of polyethylene to aluminum. 

The development of high strength thermoplastic adhesive copolymers of the EAA type containing reactive carboxyl groups has made it practical to bond insulation such as polyethylene to metal conductors to provide adequate bonding and long term environmental resistance. Frequently, the EAA copolymer is extruded around the cable. Peacock reports that when a layer of acrylic acid-ethylene copolymer (7 43) was extruded at 140°C over a flexible aluminum conductor followed by a layer of polyethylene insulation, the bond strength between the insulation and the conductor was 72 N/cm compared with 1.4 N/cm for a control assembly without the copolymer adhesive. There are numerous similar patent claims for insulated conductor cable. 

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