Apply a layer of ultra-pure plastic film inside the autoclave
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I am planning to synthesize electronic chemicals in a metal autoclave. To ensure product quality, I don’t want the metal surface to come into contact with the reaction mixture; therefore, I intend to line the inside of the autoclave with a layer of ultra-pure plastic film, such as polypropylene, polytetrafluoroethylene, or polyterephthalic acid I hope everyone here can help by providing information on where I can have this processed, or what better methods exist to achieve this goal!
Based on your requirements, it seems that the reactants are corrosive to metals, and using plastic film can meet the reaction conditions; it can be said that the conditions for this reaction are not stringent. Why not simply use enamel-lined reaction vessels along with the corresponding piping fittings, and instead consider coating the inner surface? The issue at hand is actually the corrosion protection of metal surfaces; generally, thermosetting resins are used to coat the surfaces, and this protection should last longer than that provided by plastics.
There is a company in Shanghai that specializes in lining reaction vessels; you can look it up online – they have many materials available for lining purposes
In terms of thickness, a \"film\" is not suitable; it should be referred to as a \"liner.\" National standards require that the polytetrafluoroethylene liner have a thickness of two millimeters. By the way, what exactly do you mean by “electronic-grade chemicals”? This chemical has extremely strict requirements regarding the level of metal ions; it is recommended that all equipment be lined with PTFE. Do not take any chances, as otherwise the finished product will not be acceptable to customers.