| 초록 |
With the market growth of Home meal replacement (HMR) products, the demand for frozen food packaging containers are also increasing significantly. Commonly, the containers are used to plastics due to their low thermal conductivity, but taste and texture of frozen foods are altered because of bigger ice crystal formation during re-froze after defrost. For these reason, phase change materials (PCMs) is mainly used to maintain a constant temperature, but in the case of PCM that can be driven below room temperature, most of evaporation temperature is low within about 100 ℃. But, general packing container process carry out temperature about 120 °C or higher which melting commodity plastics. Therefore, the PCMs cannot be applied by vaporizing all under the process conditions. Accordingly, the work intends to develop a technology that low-temperature PCM microcapsules can be directly compounded by photocuring 3D printing through the formation of pore structures in the polymer matrix.
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