Effect of processing parameters on compression resistance of a plug-assist vacuum thermoformed container
✍ Scribed by Abdolreza Aroujalian; Michael O. Ngadi; Jean-Pierre Emond
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 199 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0730-6679
No coin nor oath required. For personal study only.
✦ Synopsis
Experiments were conducted to investigate the effect of plug velocity, plug temperature, and film temperature on the compression resistance of a plug-assist vacuum formed container using high-impact polystyrene. Plug velocities of 0.15, 0.20, and 0.27 m/s; plug temperatures of 25Њ, 60Њ, 100Њ, 123Њ, and 135ЊC; and film temperatures of 118Њ, 125Њ, 136Њ, 150Њ, and 165ЊC were used in the study. Thermoforming was incomplete when the plug velocity of 0.15 m/s was used in conjuction with the plug temperatures of 25ЊC and 60ЊC. Higher compression resistance was obtained when container was formed using the plug velocity, plug temperature, and film temperature of 0.27 m/s, 123ЊC, and 125ЊC, respectively. Appropriate stretching time and temperature difference between plug and film are vital for good material distribution and compression resistance of containers during plug-assist vacuum thermoforming.