Unique Properties of PET Material
I. Optical and Aesthetic Uniqueness: Crystal-like Transparency and Luster
Extreme Transparency: PET achieves over 90% transparency in its natural state, comparable to glass, perfectly showcasing
its contents and greatly enhancing product display and consumer appeal.
High Surface Gloss: It possesses excellent surface gloss without additional treatment, giving it a premium feel, unmatched
by many other plastics (such as the matte finish of PP).
II. Unique Mechanical Properties: Lightweight Yet Exceptionally Strong
The Miracle Created by "Biaxial Stretching": PET's most unique properties come from the biaxial stretching process.
Through this process, PET macromolecular chains are straightened and arranged in an orderly manner both longitudinally
and laterally.
Result: Its tensile strength, impact strength, and rigidity increase exponentially. A typical PET mineral water bottle, although
lightweight, has very high strength per unit weight, effectively preventing deformation and breakage during transportation.
III. Unique Barrier Properties: An Excellent "Gatekeeper"
Excellent Gas Barrier Properties: PET has excellent barrier properties against oxygen and carbon dioxide. This is crucial for
carbonated beverages (to retain their fizz) and beer (to prevent oxidation and flavor degradation), making it the preferred
choice besides glass and metal cans.
Excellent moisture barrier properties: Effectively prevents external moisture from entering or internal moisture from escaping,
keeping the product dry or at a stable concentration.
IV. Chemical and Safety Uniqueness: Stable and Safe
Strong chemical inertness: Highly resistant to most oils, dilute acids, and dilute alkalis, it will not react with the contents,
ensuring pure flavor.
High food safety: Meets stringent global standards for food contact materials (such as China's GB 4806.7 and the US FDA),
and is inherently non-toxic and odorless.
PET's uniqueness lies in its successful integration of four key attributes: high transparency, high strength, high barrier properties,
and high safety, while maintaining large-scale recyclability.
PET is almost the only choice when your project requires the following:
Ultimately transparent product display is required.
The container needs to be lightweight and pressure-resistant/leak-proof (such as beverage bottles).
The contents need to be oxygen-barrier and retain aroma or carbonation (such as juice, soft drinks, and cooking oil).
They must meet food contact safety requirements and be easy to recycle.
