The Main Difference Between Plastic Bottles PE And PET Bottles?

• PET is called polyterephthalic acid plastic, PET plastic raw materials are milky white or light yellow highly crystalline state. PET has good optical properties and weather resistance, non-toxic stability is good, but not heat resistant water immersion, not alkali resistance. PET bottle packaging is suitable for food, medicine, cosmetics and other industry product packaging.
• PE scientific name polyethylene, it is the world's largest production of synthetic resin, is also the largest consumption of plastic packaging materials. PE material due to the water absorption is very small insoluble in water, not easy to damp, insulation properties and other advantages, so not only for food and drug packaging can also be used in the construction industry.

1. The advantages of PET plastic bottles:

• Good transparency: PET plastic bottles have excellent transparency, which allows consumers to clearly see the color and state of the product inside the bottle, increasing the attractiveness of the product.
• Excellent barrier properties: PET plastic bottles have good barrier properties for oxygen, water vapor and other gases, and can effectively protect the quality and stability of cosmetics in the bottle.
• Recyclable: PET plastic bottles are recyclable materials, which are conducive to reducing environmental pollution and meeting the requirements of sustainable development. 

2. The advantages of PE plastic bottles:

• Low cost: The production cost of PE plastic bottles is relatively low, so the price is relatively close to the people, suitable for large-scale production.
• Good toughness: PE plastic bottles have good toughness and impact resistance, which can effectively prevent bottles from breaking during transportation.
• Good sealing: The sealing performance between the cap and the mouth of the PE plastic bottle is good, which can effectively prevent the leakage of products in the bottle.

3. The difference in temperature resistance between PET and PE plastic bottles:

• PET plastic bottles have good temperature resistance and can withstand higher temperatures, while PE plastic bottles are relatively low and should not be stored in a high temperature environment for a long time.
• Application: Due to the good barrier properties of PET plastic bottles, it is more suitable for packaging high-end cosmetics that are sensitive to oxygen and water vapor. PE plastic bottles are more suitable for packaging some daily cosmetics with low barrier performance requirements.
• Environmental protection: Although PET plastic bottles are recyclable materials, the recycling process requires high energy and cost. Although the cost of PE plastic bottles is low, it is difficult to degrade in the natural environment, causing certain pollution to the environment.

• Different materials: PE bottles are plastic bottles made of polyethylene, while PET bottles are plastic bottles made of polyester.

• Different transparency: PE bottles are usually translucent or opaque, while PET bottles can be transparent or translucent.

• Different tensile strength: PET bottles are more resistant to pressure and impact than PE bottles, because PET materials are harder.

• Different quality standards: PE bottles are usually food grade, while PET bottles can achieve higher quality standards and can be used in high-end fields such as pharmaceuticals.
   

  To sum up, there are obvious differences between PE bottles and PET bottles in terms of material, transparency, manufacturing costs, tensile strength and quality standards. Which bottle to choose depends on the needs of the product.

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