Introduction to Some Food Grade Plastics

Analysis of Health Knowledge of PP, PC, PS,Tritan Plastic Water Bottle

Plastic water bottles can be seen everywhere in life. Plastic water bottles are resistant to fall, easy to carry, and stylish in appearance, so many people tend to choose plastic water bottles when buying water bottles. In fact, most people do not know the material of plastic water bottles, and usually do not pay attention to the classification and safety of water bottle materials, and often ignore the material safety of water bottles.

Common materials for plastic water bottles are Tritan, PP plastic, PC plastic, PS plastic. PC is polycarbonate, PP is polypropylene, PS is polystyrene, and Tritan is a new generation of copolyester material.

PP is one of the most safe plastic materials at present. It can withstand high temperatures and can be heated in a microwave oven. It has excellent heat resistance, but it is not strong, easy to break, and has low transparency.

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PC material contains bisphenol A, which will be released when exposed to heat. Long-term intake of trace amounts of bisphenol A will cause harm to human health. Some countries and regions have restricted or banned PC.

PS material is a material with extremely high transparency and high surface gloss. It is easy to print, and can be colored freely, is odorless, tasteless, non-toxic, and does not cause fungus growth. Therefore, it has become one of the more popular plastic materials.

Manufacturers are facing the pressure of health and environmental protection and are looking for materials that can replace PC.

In this market background, Eastman of the United States has developed a new generation of copolyester Tritan. What are its advantages?

1. Good permeability, light transmittance>90%, haze<1%, with crystal-like luster, so the Tritan bottle is very transparent and clear like glass.

2. In terms of chemical resistance, Tritan material occupies an absolute advantage, so Tritan bottles can be cleaned and disinfected with various detergents, and they are not afraid of corrosion.

3. It does not contain harmful substances and meets the requirements of environmental protection and health; good toughness, high impact strength; high temperature resistance between 94℃-109℃.


Post time: Oct-09-2020