瓶级聚酯切片具有均匀的晶体结构，狭窄的分子质量分布；无毒、无味、有玻璃般的透明和光泽；良好的冲击韧性和高强度；气体渗透性小（即阻隔性能好），能延长饮料的保质期；加工简单，尺寸变化小或在负载下蠕变小；相对玻璃来说，具有质量轻、安全性好的诸多特点。
概述了瓶级聚酯切片国内外市场状况和技术进展。
Present situation of market and technology progress of bottle grade PET pellet at home and abroad are introduced.
探讨瓶级聚酯切片乙醛含量高的原因和采取的对策。
The reasons and countermeasures for the high acetaldehyde content in the bottle grade polyester chips are discussed.
结合食品、饮料、啤酒等的包装材料现状，对瓶级聚酯切片的发展趋势进行了综述。
Based on the recent situations of packaging materials used for foodstuff, beverage and beer, the developing trends of bottle grade PET pellet are summarized.
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