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:
Custom printed food grade ziplock snack custom plastic pouch packaging food packing bag
Popular recommendation
Aluminum foil bag
Custom Size Printed Coffee Milk Juice Wine Bib Bag-In-Box With Valve Gift Cardboard Box
Custom printed food grade ziplock snack custom plastic pouch packaging food packing bag
smart spout pouch manufacture
kraft spout pouch Solution
Spout pouch flexibility
pet food bag sealer price
flexible packaging films Vendor
tea pouch packing machine price
wholesale coffee bags with valve
Convenient choice: Environmentally friendly liquid portable bag
The printing principle of composite bags.eco friendly spout pouches custom
What are the differences between polyester pet vacuum bag and nylon pa vacuum bag
What is the function of the hole on the coffee bag
The thickness of the food packaging bag is related to food safety.reusable Snack food bag Manufactur
Hitting the pain points of gift box packaging directly, three simple points make packaging customiza
PET food bag wholesaler.What requirements should food packaging bags meet
baby pacifier newborn wholesale.What are the good properties of food packaging bags
How did the bag pattern come from?
Did you choose the right rice packaging bag?
Various problems about aluminum -plastic bags, such as heating?
Advertising bag classification.bag in box direct sales
What are the hazards of unqualified food packaging bags.printed snack food bags Solution
The Origin of Aluminum Foil Bag.aluminum foil bag roll
How to choose a bag type of food packaging bags?
What are the abilities of composite food bags.food packaging pouch suppliers
Performance advantages of aluminum foil bags.aluminium spout pouch
Qualified composite bags should possess these qualities.aluminum laminated foil bag Factory
What kind of food packaging bags are qualified
Aluminum foil bag basic knowledge