Modified fluorine material gas sampling bag

Fluorinated Ethylene Propylene Copolymer (PFA) Gas Sampling Bag
Features: PFA is a modified version of FEP, offering higher crystallinity and superior chemical resistance. It maintains stability even at high temperatures (with a long-term service temperature of up to 260°C). Its surface smoothness is comparable to PTFE, but it boasts better processability, allowing for thinner bag construction.
Applications: Suitable for high-temperature and highly corrosive gas collection, such as etching gases (Cl₂, BF₃) in the semiconductor industry or reactive gases in chemical production.

Fluoroelastomer (FKM) Composite Gas Sampling Bag
Features: FKM, a fluorinated elastomer, is combined with PTFE or FEP to create gas sampling bags that balance flexibility and chemical resistance. The FKM layer provides sealing performance and tear resistance, while the fluoropolymer layer prevents gas permeation.
Applications: Ideal for scenarios requiring frequent opening/closing or mechanical stress resistance, such as portable gas sampling devices or dynamic gas analysis systems.

Nano-Modified Fluoropolymer Gas Sampling Bag
Features: Incorporating nanoparticles (e.g., SiO₂, TiO₂) into fluoropolymers significantly enhances mechanical strength, wear resistance, and temperature resistance. For instance, nano-SiO₂-modified PTFE gas sampling bags exhibit a tensile strength increase of over 30%.
Applications: Designed for gas collection in extreme environments, such as high-temperature/high-pressure downhole gases or high-velocity airflow sampling.