| 초록 |
Food packaging provides stability from physical and chemical stimuli, as well as convenience and product quality maintenance and enhancement factors. Recently, packaging containers have been distributed in various types. However, chemical substances can be transferred to food during the production and manufacturing of packaging, so standards for packaging containers are established and managed. In the case of two-component polyurethane adhesives used for laminating food packaging films are mixed with a curing agent. If residual solvents remain in the packaging, they can contaminate to the internal product and be exposed to consumers. This study aim to develop an adhesive material with excellent heat resistance without emitting volatile organic pollutants (VOC). High-solid content waterborne polyurethane dispersion were synthesized and studied using hydrophilic polyols and eco-friendly raw materials, and peel test were conducted using Al foil, CPR, PET and LLDPE films. |
