What are the differences between PET, PE and PVC plastic bottles
Time：
2022-01-10
Although there are many materials of plastic bottles, the functions and characteristics of plastic bottles are different according to the different materials, so please try to compare plastic bottles and plastic bottles.
Although there are many materials of plastic bottles, the functions and characteristics of plastic bottles are different according to the different materials, so please try to compare plastic bottles and plastic bottles.
Characteristics: PE soft, touch will have a waxy texture, compared with the same plastic weight is relatively light, there is a certain transparency, the flame is blue when burning.
Poison: non-toxic, harmless to the human body.
The high density polyethylene (HARE) sold on the market has a density of 0.945 ~ 0.9g/cubic centimeter and a melting point of 125 ~ 137 degrees.
Linear low density PE (LLARE), density 0.925 g/cm ³, melting point 120 ~ 125 degrees.
High pressure and low density PE (HP-L magnetic), density 0.918 g/cm ³, melting point 105 ~ 115 degrees.
Application of polypropylene (PP) : microwave utensils, POTS, plastic buckets, thermos bottles, woven bags, etc.
Characteristics: High chemical stability, good health performance, high heat resistance. The tableware of the electronic microwave oven is made of plastic.
Poison: non-toxic, harmless to the human body.
This polymer can have three stereoscopic structures: isoregular, regular, irregular polyarchel, the first two crystals, the latter is not possible. The basic structure of the polypropylene products sold in the market is that the melting point is 164 ~ 170 degrees, the density of the crystalline part is 0.935 grams/cubic centimeter, and the non-clean part is 0.851 grams/cubic centimeter.
The biggest disadvantage of PP is that it is easy to age. Now, to antioxidant and violet absorbent such as overcome.
PET applications: plastic bottles, medicine bottles, cosmetics bottles, oil bottles, and various bottle caps and thermal caps.
Features: good transparency, not easy to break, good chemical stability, suitable for a variety of liquid or solid drug packaging. It has good shielding against ultraviolet rays.
Poison: non-toxic.
PET plastic bottles are the mainstream of beverage packaging. PET plastic bottles dominate the beverage packaging industry in China, and so far, no plastic bottles have been found to be better than PET. PP bottles mainly focus on the one-step method and the 2-step method of heating formed in the forming machine and formed PP bottles are clear, strong, heat resistant advantages, and the price is lower than radical data. There is a possibility of 100 ° C
In the bottle, high precision PP plastic bottles can be produced by 0.1% -0.4% of Sandy Ekron nuclear reduction agent, spray, blow, injection and other methods. PP plastic bottles can withstand temperature, bottle type sensitivity is very good, safety, hygiene and content of the food sense of adherence is inferior, cheaper than PET, PS, PE and other materials. PP plastic bottles, beverage packaging market in the use of scale has been close to PET bottles, sex resin, anti-reflective agents and mechanical equipment skills continue to develop, PP containers can replace glass, PET and PVC containers, broad market prospects.
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Specializing in the production of high temperature cooking bags, vacuum bags, composite color printing bags, self-supporting zipper bags, aluminum foil bags and automatic packaging roll film and other types of plastic packaging bags.
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Zhaozhuang Village, Yuqiao Township, Dongguang County, Cangzhou City, Hebei Province