1. Definition of fluorinated bottle: fluorinated bottle is obtained by surface fluorination of ordinary HDPE plastic bottle surface.

2. What is fluorination

The surface treatment of plastics and other materials with fluorine gas is called fluorination. When fluorine gas contacts with polymers with C-H structure (such as HDPE, HDPE, etc.), the fluorine atom f replaces the hydrogen atom h on the surface of the polymer, forming a fluorocarbon C-F structure layer similar to PTFE structure. This kind of substitution reaction is irreversible. The fluorocarbon structure layer formed by the reaction is connected with the whole polymer matrix by a very stable chemical bond, forming an inseparable whole, while the polymer itself does not change and maintains its own characteristics.

3. Performance of fluorinated bottle:

A. Improve barrier performance of containers (chemical resistance)

B. Avoid the loss of active ingredients in the product C, prolong the shelf life of the product

D. Avoid contamination and discoloration of containers, prevent product odor diffusion

F. Avoid mutual contamination between different products g. verifiable anti-counterfeiting features

H. No damage to plastic surface, but excellent effect, long-term, stable

1. Removing static electricity from the surface of plastic products

J. Meet un air transport requirements

K. The alternative of PTFE material can greatly reduce the cost

4. Detection method of fluorinated bottle

After coating the inner wall with Sudan III dye, place it at (50 ± 2) ℃ for 15min (min), and clean the inner wall of the bottle with X-100 fatty acid salt solution (or alcohol, etc.) or other feasible detergents, and there shall be no red residue on the inner wall of the bottle.

This is the most commonly used and reliable method, which has been included in the national standard GB 4838-1984 "packaging of EC pesticides".

The internal absorption of common PE bottles containing organic solvents affects the sales of products