Classification of PET Chips

Polyethylene terephthalate (PET), abbreviated as PET, is a white granular solid formed by the polymerization of terephthalic acid (PTA) and ethylene glycol (EG). According to its application, composition, performance, purity and chemical structure, the calassfication is different.

Classification:

1) According to application

1. Textile-Grade Polyester Chips: used in textiles, ropes, clothing
2. Bottle-Grade Polyester Chips: used in plastic bottles, food containers, cosmetic bottles
3. Film-Grade Polyester Chips: Used in packaging films, plastic bags, cling film

2) According to composition and structure

1. Blended: Composed of different polymers blended together, combining various properties. Used in plastic products, composite materials, and packaging materials.
2. Copolymer: Formed by the polymerization of multiple monomers, customizable for specific attributes.Used in plastic products, flexible materials, and sealing materials.
3. Crystalline: Possesses a crystalline structure, offering high strength and rigidity. Used in high-strength components, and mechanical parts.
4. Liquid Crystal: Features ordered molecular alignment, used in high-performance electronic materials.Used in display screens, electronic materials, and liquid crystal devices.
5. Ring-shaped: Exhibits a ring-shaped molecular structure, utilized in special material research. Used in high-performance electronic devices, and material research.

3) According to performance

1. Colored: Contains added color or dyes, suitable for colorful products. Used in colored plastic products, textiles, packaging.
2. Flame Retardant: Possesses flame retardant properties, enhancing safety. Used in electronic devices, building materials, automotive components.
3. Antistatic: Has antistatic characteristics, preventing static buildup.Used in electronic devices, antistatic packaging, cleanroom equipment.
4. Hygroscopic: Absorbs moisture, suitable for humidity-sensitive applications.Used in medical devices, humidity-sensitive equipment, agricultural etc.
5. Anti-Pilling: Resistant to pilling, maintaining appearance quality.Used in clothing, textiles, bedding.
6. Antibacterial: Exhibits antibacterial properties, improving hygiene.Used in medical equipment, food packaging, textiles.
7. Whitening: Provides whitening effects, enhancing visual appeal.Used in white plastic products, textiles, food containers.
8. Low Melting Point: Has a lower melting point, used in heat-sensitive applications， like hot melt adhesives, sealing materials, thermosensitive materials.
9. High Viscosity: Features high viscosity, improving adhesive performance.Used in adhesives, sealing materials, coatings.

4) According to PET purity

1. PETG: Packaging, transparent parts, bottles, etc.
2. PETE: Possesses higher heat resistance, suitable for microwave ovens and food containers, such as food containers, hot water bottles, thermoplastic engineering components.
3. PETH: Offers improved impact strength and toughness, suitable for applications with bending and high impact loads, such as  bottles, engineering components, electronic enclosures.

5) According to PET chemical structure

1. Pure PET: without fillers or reinforced PET containing fillers like glass fibers.Used in bottles, fibers, films.
2. Glass fiber-reinforced PET: provides higher rigidity and strength, suitable for structural parts.Used in mechanical components, automotive parts, ship components.

Here show all the classifications: