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 Size Printed Coffee Milk Juice Wine Bib Bag-In-Box With Valve Gift Cardboard Box
Introduce the development trend of pet food packaging.Spout pouch flexibility Factory
Popular recommendation
Pouch with handle
Spout pouch
Super pouch
flexible packaging manufacturer
custom printed spout pouches
wine bag in box Production
Spout pouch flexibility Production
pouch with handle company
juice bag in box Factory
spout pouch packaging Factory
With Spout pouch - a new form of packaging
Sterile packaging bag.aluminum foil bag large custom
Customized packaging bags according to product characteristics
baby pacifier newborn wholesale.What are the good properties of food packaging bags
Top-line packaging exhibition
The quality of rice vacuum packaging is very important
What are the advantages of liquid chemical packaging bags in transportation?
Material of liquid bag
How are the bags classified?
Convenient choice: Environmentally friendly liquid portable bag
Material of anti -static vacuum bag
Analysis of food vacuum bag
Reasons for wrinkles in high-temperature cooking bags after sterilization.aluminum foil bags for coo
Explanation on Flexible Packaging.bags in a box
Advocate the benefits of using environment-friendly plastic bags
clear spout pouch Manufacturing.Talk about the production process of food packaging bags
Application of Spout POUCHES
What is coffee bag packing?
What is a composite bag.bag in box maker
Usage and operating steps of sterile bags