chemical composition
|
Polyester polymer material, polymerized from terephthalic acid and ethylene glycol
|
Polyvinyl chloride, chlorinated polymer material
|
Polypropylene, a semi crystalline thermoplastic made by polymerizing propylene
|
transparency
|
High transparency (with a light transmittance of over 90%) and good surface glossiness
|
High transparency (soft PVC has slightly lower transparency), while the transparency of hard PVC is close to PET
|
Translucent to transparent (depending on crystallinity), moderate glossiness
|
hardness
|
High hardness, good toughness, and strong impact resistance
|
Soft PVC is soft and elastic, while hard PVC has high hardness and brittleness
|
Moderate hardness, good flexibility, bendable and not easily broken
|
Temperature resistance
|
Low temperature resistance (-40 ℃), high temperature resistance (short-term ≤ 120 ℃, long-term ≤ 60 ℃)
|
Poor temperature resistance (soft PVC ≤ 60 ℃, hard PVC ≤ 80 ℃), easy to release harmful substances at high temperatures
|
Temperature resistance [sensitive word] (-30 ℃~120 ℃, suitable for microwave oven), can be steam disinfected
|
chemical resistance
|
Good acid, alkali, and oil resistance, but not resistant to strong alkali and organic solvents
|
Good acid resistance, alkali resistance, and water resistance, but poor resistance to organic solvents and easy migration of plasticizers
|
Strong chemical corrosion resistance, resistant to grease, acid, alkali, and most organic solvents
|
environmentally
|
Recyclable (PET bottle recycling system mature), non-toxic and odorless, meets food contact standards
|
Soft PVC contains plasticizers (such as phthalates), which may release harmful substances; Burning generates dioxins, causing significant environmental controversy
|
Non toxic and odorless, recyclable, with combustion products of water and carbon dioxide, and good environmental friendliness
|
cost
|
Moderate to high
|
Cost [sensitive word]
|
medium
|