Tel: +86 188 2689 9458
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:
Wholesale High Barrier Plastic Stand Up Flat Bottom Pet Dog Food Packaging Bag
kraft paper spout pouch supplier
super pouch tool bag Processing
What is the difference between fully biodegradable plastic bags and degradable plastic bags?
Popular recommendation
Wholesale Price Biodegradable Aluminum 3 Three Side Seal High Temperature Microwavable Food Retort S
China Factory Baby Complementary Food Spout Pouch Baby Food Fruit Puree Bag With Spout Packaging Bag
Custom Special Shaped Super Pouch Aluminum Foil 1.5L 3L 5L Stand Up Drink Juice Liquid Pouch With Va
wine bag in box custom
spout pouch machine company
pouch with handle wholesaler
spout pouches Solution
new super pouch custom
spout pouch bag wholesale
spout pouch serves custom
Pure Source: High quality liquid sealed packaging bag.juice bag in box wholesaler
The selection details of paper bag making are important
When using vacuum packaging bags for food, it is inevitable to encounter difficulties. How to solve
What are the composition of plastic bags?coffee packaging plastic bag wholesale
There will be several "small holes" on the top of the coffee pouch bags, so what is the my
The common problems of self -standing bags are here, the solutions are here
How to determine whether the food packaging bag is regular?
What are the advantages of plastic packaging bags
What are the packaging machinery and equipment?
Beverage Pouch: The Ultimate Guide
Why choose aluminum foil bags for mask packaging bags
The packaging manufacturer tells you how to choose flexible packaging materials.reusable Snack food
Precautions for using vacuum bags by food packaging manufacturers.vacuum sealer bags for food
What are the requirements for packaging in the frozen industry?
Vacuum packaging bag can inhibit bacteria
Requirements and standards for medical packaging bags
Can you distinguish frozen vacuum packaging bags and quick -frozen vacuum packaging bags?vacuum seal
Two composite methods of vacuum packaging bags
Production method of degradable plastic bag
Types of composite packaging bags.Flexible packaging film roll
Subscribe to Top-line emails and
stay updated on our news.
+86 188 2689 9458Email: info@toplinepackaging.com
Add: Room 204-205 ,Buliding 2 ,No 7 xinji Road,Nancheng street ,Dongguan City ,Guangdong province,China
Download Catalogs
Wechat
Whatsapp
