The more common materials used to make plastic bottles are PET, PP, PE, PC and so on. The following is an introduction to the characteristics of these materials:
PET
Transparent, non-toxic, impact resistant, not resistant to high temperature, generally filled with mineral water, cola, peanut oil, cosmetics, to be filled cold, one-time use (can not be disinfected at high temperature).
PP
Non-toxic, transparent, with a certain degree of heat and impact resistance, generally loaded with juice drinks, shampoo, can be filled hot (more important for juice drinks), can not autoclave sterilization, transparency is not good.
PE
PE bottles are similar to PP bottles, better toughness than PP, but less rigid and heat resistant, good solvent resistance, plastic soy sauce bottles seem to be PE, temporarily filled with a small amount of wine, paraffin can.
PC
Transparent, impact resistant, high temperature resistant, the material is more expensive, mineral water bottles used more, can be high temperature steam sterilization.
The key to choosing the material of plastic bottle manufacturers is to see what you want to install, there is no corrosive, appearance requirements, etc., to decide what material to use.
Plastic bottle packaging has been the mainstream of China's packaging mode, the demand for all walks of life occupy a high proportion of packaging. But with the increasing awareness of people's environmental green health, high-temperature plastic bottles are also subject to the glass packaging of plastic bottles, in the case of high temperature, regardless of whether the performance will release harmful substances, is suffering from market questions. How to increase the plastic bottle packaging with high temperature resistance characteristics?
I don't know if you have encountered such a thing when you were small, is to facilitate the carrying of plain water to school will just boil the plain water poured into mineral water bottles or other beverage bottles, and then found that the plain water is not yet full, the plastic bottle has been deformed to a great extent. This is because the ordinary plastic bottle packaging its heat-resistant temperature can only reach 70 degrees, in fact, according to scientific experiments found that plastic bottle packaging heat-resistant to 60 degrees will release trace amounts of harmful substances, and not all plastic bottle packaging is to this heat-resistant temperature as the standard, some plastic bottles will be based on the weather temperature and other objective temperature over its range will release the corresponding harmful substances.
Therefore, according to the packaging characteristics of a variety of plastic bottle manufacturers on the market, researchers are also studying high temperature resistant plastic bottle materials such as PET, PP and BOPP to improve the composition of the material factor and increase its heat resistance.