PVDF and PVDF Copolymers
PVDF and PVDF: The Versatile and Viable Material Choice
PVDF gives the very unusual combination that ensures resistance to alcohol, hydrocarbon resistance (aromatic and aliphatic), and resistance to oxidants commonly associated with the latest biodiesel technology.
In the related area of production of ethanol, it is common to have low levels of sulfuric acid generated in the process. Many processing plants began construction with stainless steel, but have now turned to PVDF-lined process equipment to avoid corrosion problems caused by low percentage acid concentrations.
Pharmaceutical and Biotechnology
The pharmaceutical industry faces several process challenges due to the sheer amount of ingredients handled. This is coupled with FDA regulations, USP Class 6 requirements, and process water purification targets. PVDF meets all these requirements and has the added advantage over common plastics that it can be repeatedly steam cleaned at up to 30 psi steam.
PVDF and PVDF copolymers are listed in the ASME Bioprocessing Equipment (ASMEBPE) standards as a common material selected by designers for biotech system design. Piping, flexible tubing, tanks, membranes and pumps are all common applications for PVDF in this industry.
Polymers for Semiconductor Processing
Perhaps, the biggest industrial use for PVDF is in the semiconductor industry. It has many properties that cater to the requirements of this industry, which are not required in case of general chemical applications. Flame and smoke resistant compliance outlined by Factory Mutual (FM) 4910 plus Underwriters Laboratories (UL 2360), and SEMI F57 high purity standards are special requirements in the manufacture of high purity piping systems and acid etching equipment used in the process of preparing silicone wafers.