How to identify PE plastic bags? What are the methods?

source:other news release time:2022-12-19 Hits:

　　 Vacuum zipper bag

　　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

clear spout pouch wholesaler

refillable spout pouches supplier

How much do you know about packaging bags

Development trend of plastic packaging industry in recent years

Popular recommendation

3L 5L Bag-In-Box Wine Dispenser Coffee/ Juice/ Water/ Oil Bag-In-Box With Valve

Smell Proof Stand Up Flat Bottom Pouch Coffee Bag /Coffee Beans Bag With Air Release Valve And Reusa

Custom printed food grade ziplock snack custom plastic pouch packaging food packing bag

bag in box wine wholesaler

printed snack food bags

wine bag in box price

flexible packaging films Vendor

coffee grinds pouch manufacturer

smart food Snack food bag manufacture

smart food Snack food bag wholesaler

Thermal insulation: the guardian of temperature

Requirements for fertilizer packaging bags.

Understand the color printing technology of packaging bags

Bag-In-Box: Revolutionizing Liquid Packaging with Innovative Paper Bags

bag in box packaging Solution.Learn about children's food packaging bags

PET food bag wholesaler.What requirements should food packaging bags meet

Bag-In-Box: The Future of Flexible Packaging and Its Impact on Top-line Growth

Guide the use of plastic packaging bags

Packaging airbag inflation

The choice of vacuum food packaging bags

Why does the aluminum foil heat -stress -resistant strength is not good?aluminium spout pouch manufa

Reasons for Odor in Food Packaging Bags

Tips for using plastic packaging bags.coffee packaging plastic bag distributors

What Food Vacuum Zipper Bag do you see?pint zipper vacuum bag custom

What are the advantages of octagonal sealed packaging bags.aluminum foil bags for cooking distributo

Application materials of composite packaging bags.spout pouch serves manufacturer

How to identify PE plastic bags? What are the methods?

What are the uses of plastic bags?

We all know but not necessarily comprehensive plastic packaging bag use knowledge.zip lock aluminum

What are the advantages of environmentally friendly plastic bags?valve plastic coffee bag

How to identify PE plastic bags? What are the methods?

Stay Connected with us

PRODUCTS

Navigation

+86 188 2689 9458