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:
Hot Sale BPA Free Plastic Drink Juice Fruit Liquid Packaging Stand Up Bag Spout Pouch
Popular recommendation
China Factory Baby Complementary Food Spout Pouch Baby Food Fruit Puree Bag With Spout Packaging Bag
Custom Laminated Printing Juice Bag Liquid Packaging Stand Up Plastic Water Spout Pouch
Custom Special Shaped Super Pouch Aluminum Foil 1.5L 3L 5L Stand Up Drink Juice Liquid Pouch With Va
refillable spout pouches Production
eco friendly spout pouches
spout pouch machine Vendor
Snack food bag bulk
packaging spout pouch custom
bag in box Vendor
kraft paper spout pouch Manufacturing
Sterile packaging bag.aluminum foil bag large custom
PET food bag wholesaler.What requirements should food packaging bags meet
aluminium spout pouch Factory.Lightweight heat preservation, Spout pouch accompanying
When using vacuum packaging bags for food, it is inevitable to encounter difficulties. How to solve
The printing principle of composite bags!beverage bag manufacturers
Customized packaging bags according to product characteristics
Introduction to the functions, features and usage of spout bags
Packing bag sealing brittle and brittle break how to do?
Aluminum foil vacuum packaging and transparent vacuum packaging.gusset aluminum foil bag distributor
How to test the packaging bag.
What is the purpose of the barcode on food packaging bags?
Characteristics of ton bag aluminum foil bag.heat seal aluminum foil bag
How to use food vacuum packaging bags correctly?reusable Snack food bag distributors
The dairy industry holds the "national tide style", choosing the right packaging is equiva
The key to solve plastic pollution is degradable plastic bag
What should I pay attention to when the self -sealed bag should pay attention to during the inflatab
What are the application ranges of bags in boxes.bag in box coffee
The production process of plastic vest bag.bag in box packaging Manufacturing
What are the reasons for the continuous rise in the BIB market.custom stand up pouch
Detailed explanation of the structure of composite packaging materials.vanishing coff packaging bag