Adhesive effect of linear low-density polyethylene gels on polyethylene moldings |
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| Institution: | 1. Institute of Inorganic Chemistry of the Czech Academy of Sciences, 20568 Husinec-Rez, Czech Republic;2. Nuclear Physics Institute of the Czech Academy of Sciences, 20568 Husinec-Rez, Czech Republic;3. University of Catania, Dipartimento di Fisica e Astronomia, Via S. Sofia 64, 95135 Catania, Italy;4. Czech Technical University in Prague, Department of Mechanics, Thakurova 7, 166 29 Prague, Czech Republic;5. University of Chemistry and Technology, Department of Metals and Corrosion Engineering, Technicka 5, Prague 6 16628, Czech Republic;6. University of Illinois at Chicago, Department of Physics, 845 W Taylor Str., 60607 Chicago, USA |
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| Abstract: | Adhesive effect of linear low density polyethylene (LLDPE) gels in organic solvents such as decalin, tetralin, and o-dichlorobenzene on high density polyethylene (HDPE) moldings has been investigated by shearing tests, and DSC measurements. For all of the gels the temperature at which the heated gel starts to exhibit the adhesive effect was about 70 °C, which is similar to the result of LDPE gel. In particular, when heated at 110 °C, LLDPE gel in tetralin showed such a strong bond strength that polyethylene plates of 3 mm in thickness and 20 mm in width gave rise to necking. It was found that LLDPE gel behaved as though it added LDPE gel to HDPE gel namely LDPE-like components in LLDPE resin exerted the adhesive effect at lower heating temperature, HDPE-like components exerted the strong adhesive effect at higher heating temperature. |
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