Making filter paper disks involves a specific process starting with standard filter paper and treating it with a resin before cutting it into shape.
Overview of the Process
According to one method, the creation of filter paper disks begins with a sheet of commercially available filter paper. This paper is then treated with a specific type of resin, allowing it to become saturated. Following this saturation step, the paper is then shaped into the desired disk form using a punching method.
Step-by-Step Guide
Here is a detailed breakdown of the process based on the provided reference:
- Obtain Filter Paper: Start with a sheet of commercially available filter paper. The reference specifies using paper weighing 82 grams.
- Prepare Resin Solution: Prepare a solution using a phenolic resin. An example given is formalin.
- Soak the Paper: Submerge the sheet of filter paper in the phenolic resin solution.
- Achieve Saturation: Allow the paper to soak until the phenolic resin has completely saturated the paper.
- Punch the Disks: Once the paper is saturated with resin, it is ready to be cut. Use a punching tool to form the desired flat annular filter discs from the sheet.
This method results in filter paper disks that have been modified by the phenolic resin, potentially altering their filtration properties or structural integrity compared to untreated paper disks.
