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Abstract
The adhesive effect of swollen polyethylene films to bond polyethylene moldings have been investigated. It was found that low density polyethylene (LDPE) films swollen in decalin and tetralin show an adhesive effect when heated over 70° C for 2 h. The joint strength increased as the heating temperature was raised. When heated at 120° C, it showed such a strong joint strength (over 36 kg/cm2) that the polyethylene plates gave rise to necking, and this should be enough for practical uses.
