Tel: +86 188 2689 9458
source:other news release time:2022-12-19 Hits:
In daily life, many PE plastic bags are used to package products, but there are many types and names of packaging materials. When we need to use PE plastic bags, how do we identify them? PE film is widely used to make plastic bags, plastic films and milk pails. Its name is also polyethylene, which is resistant to a variety of organic solvents, acid and alkali corrosion, but not antioxidant acids, such as nitric acid. Polyethylene will be oxidized in oxidizing environment. Polyethylene can be considered transparent in the film state, but in the presence of a large number of crystals in the block, it will be opaque due to strong light scattering. The degree of crystallization of polyethylene is affected by the number of its branches. The more branches, the more difficult it is to crystallize. The melting temperature of polyethylene crystal is also affected by the number of branches and chains, which are distributed from 90 ℃ to 130 ℃. The more branches and chains, the lower the melting temperature. Polyethylene single crystals can usually be prepared by dissolving high-density polyethylene in xylene at temperatures above 130 ℃.
Structural formula of PE plastic bag: - CH2-CH2-CH2-CH2-CH2-CH2-CH2-CH2-CH2-CH2 The simplest way to identify PE plastic bag is as follows:
1. Cut a small piece and put it in water. Floating on the water is PE
2. When lit, PE smells like a candle
3. It seems that the PE plastic bag is transparent
4. PE plastic bag is smooth and comfortable to the touch.
5. It's hard to break because it's pulling
Read recommendations:
125g 250g 500g 1kg Aluminum Foil Flat Bottom Coffee Bean Bags With Valve
ordering flexible packaging film roll sales.The shortcomings of environmental bags
Why is bagged milk in BIB boxes becoming increasingly popular?bag in box price
Popular recommendation
125g 250g 500g 1kg Aluminum Foil Flat Bottom Coffee Bean Bags With Valve
Aluminum foil bag
Super pouch
Aluminum foil bag supplier
flexible packaging bags company
Flexible packaging film roll Factory
zip lock bag for coffee manufacture
spout pouch bag distributors
bag in box packaging distributors
coffee grinds pouches manufacturer
stand up pouch with spout packaging Factory.Classification and material of packaging bags
How to use food packaging bags specifically
Differences in the Materials of Composite Packaging Bags
Take you to analyze the wrinkle phenomenon in the zipper bag
Super Pouches: Revolutionizing Flexible Packaging for Top-Line Packaging Solutions
Liquid flat mouth filling bag
What are the characteristics of thin cream in a box?stand up pouch black
How to Improve the Market Competitiveness of Food Packaging Bag Manufacturers
Can the vacuum bag be reused?
Packaging bag printing type.recyclable spout pouches supplier
Development history of biodegradable plastic bags
The benefits of loading food with vacuum aluminum foil bags.aluminum foil bags for grilling
The magic of packaging bags.
aluminium retort pouch Solution.How to judge the quality issues of plastic packaging bags
Introduction and application of composite food bag wholesale.smart food Snack food bag Manufacturing
Smart packaging bag.recyclable spout pouches sales
Function of plastic food packaging bags
Introduce common sealing methods for food packaging bags
Common problems and solutions when using Vacuum packing bags to package food.poly bags for food pack
Target audience for packaging bags.biodegradable spout pouches supplier