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:
Smell Proof Stand Up Flat Bottom Pouch Coffee Bag /Coffee Beans Bag With Air Release Valve And Reusa
stand up spout pouch Production
What is the difference between fully biodegradable plastic bags and degradable plastic bags?
Popular recommendation
Kraft paper pouch
Wholesale High Barrier Plastic Stand Up Flat Bottom Pet Dog Food Packaging Bag
3L 5L Bag-In-Box Wine Dispenser Coffee/ Juice/ Water/ Oil Bag-In-Box With Valve
spout pouch packaging bags sales
smart food Snack food bag Manufacturing
pouch with handle custom
pet food bag sealer sales
aluminium spout pouch wholesaler
coffee grinds pouches Production
kraft spout pouch Processing
Why are cylindrical bag-in-box so popular?
New machine 1L-250L April,17,2023
Vacuum packaging bag.food vacuum bag
The choice of vacuum food packaging bags
Do you know these characteristics of the bag in the box?
Understand the color printing technology of packaging bags
How to define the specifications and dimensions of packaging bags
How much do you know about PE bag blowing film?properties of flexible packaging films distributors
Compostable and Biodegradable Stand up Pouches -The Complete Guide
Common types of transparent vacuum packaging bags
What are the uses of plastic bags?
How to judge the quality of sterile bags.stand up zipper pouch bags
Supply and demand analysis of self-supporting bag industry
How to choose high quality PE plastic bag?
Production precautions for aluminum foil bags.disposable aluminum foil bag
Reasons for Odor in Food Packaging Bags
The advantages of choosing aluminum foil packaging bag.aluminum foil bags for grilling Manufacturing
The material characteristics of the food packaging bag you don't know.stand up pouches for food pack
Vacuum packaging bag characteristics.food vacuum bag
Is there any attractiveness of the eight -sided seal packing cat food bags?petco free dog food bag P