Food packaging bags generally use PET film, PE film, PA film, OPP film and CPP film.
characteristic:
PET film: This film is ultra-transparent, hard material, high temperature resistant, and has good printing effect. It is more suitable for the outer packaging of food. The PET film feels particularly brittle and can be used to make the rustling sound.
PE film: transparency is slightly inferior to cpp, but softer than cpp, PE film has better tensile properties and better tensile strength. There are two kinds of milky white PE and transparent PE (HDPE/LDPE/LLDPE), which is soft to the touch.
PA film (nylon): PA material is tough, transparent, wear-resistant and puncture-resistant, easy to be oxidized, easy to shrink and wrinkle. This material is suitable for bone-like products.
OPP film: The material is hard and can not be stretched. The heat sealing type is very good, but the transparency is relatively general, the material is brittle and the hand feel is poor.
CPP film: CPP material is less transparent than OPP but better than PE. The material is soft and high temperature resistant. It can be used as printing material, but it is not easy to print.
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11B is used as a dopant in the process of semiconductor device manufacturing, which can effectively improve the semiconductor performance and anti-radiation and anti-interference ability of the device. In addition, 11B can also be used as an additive to the steel used in the manufacture of reactors, which can greatly improve the resistance to high temperature and radiation.
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