PET cups have good mechanical properties, with an impact strength 3-5 times that of other films, and good bending resistance

【Summary Description】 PET cups have good mechanical properties, with an impact strength 3-5 times that of other films, and good bending resistance

PET cups have good mechanical properties, with an impact strength 3-5 times that of other films, and good bending resistance

Oil resistant, fat resistant, acid and alkali resistant, and resistant to most solvents. It has excellent resistance to high and low temperatures and can be used for a long time within the temperature range of 120 ℃. It can withstand high temperatures of 150 ℃ and low temperatures of -70 ℃ for short-term use, and its mechanical properties are minimally affected by high and low temperatures. Gas and water vapor have low permeability and excellent resistance to gas, water, oil, and odor. High transparency, can block ultraviolet rays, and has good gloss. Non toxic, odorless, with good hygiene and safety, it can be directly used for food packaging.

 

The molecular structure of PET plastic is highly symmetrical and has a certain degree of crystallization orientation ability, therefore it has high film-forming properties and properties. PET plastic has excellent optical properties and weather resistance, while amorphous PET plastic has good optical transparency. In addition, PET plastic has excellent wear resistance, friction resistance, dimensional stability, and electrical insulation. PET bottles are widely used due to their high strength, good transparency, non-toxic, impermeable, lightweight, and high production efficiency. The molecular chain structure of PBT and PET is similar, and most of the properties are also the same, except that the main chain of the molecule has changed from two methylene groups to four, so the molecule is more flexible and the processing performance is better.

Common PET:

There is a triangle with an arrow at the bottom of a plastic bottle, and there is a number inside the triangle. The numbers in these plastic bottle bottom triangles refer to the ingredients contained in the bottle and their impact on human health

1- PET polyethylene terephthalate: commonly found in mineral water bottles, carbonated beverage bottles, etc. When the temperature reaches 70 ℃, it is prone to deformation and harmful substances to the human body melt. After 10 months of use, plastic product 1 may release the carcinogen DEHP. These types of bottles cannot be placed in cars to be exposed to the sun, and cannot contain substances such as alcohol and oil.

In the past two years, the Indian Intercontinental Recycling Company has produced qualified recycled PET. According to reports, the Indian owned Intercontinental Recycling unit located in the Skelmersdale area of northern England began trial operation in November 2007. According to the plan, the unit can recover and convert 30000 tons of waste plastic bottles per year. In addition, the device has some sorting, washing, and drying equipment, and the products produced will be hot can bottle slices for non edible products. Consumers can use this material to package non edible products or as a middle layer to separate two layers of edible substances. At present, the market price for recycled PET bottle slices used for non edible products in the UK is around 600 pounds per ton.