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Please let me know how to mix sodium trimetaphosphate (stmp) into bio-adhesive cassava starch to reduce the water aborption of the final material.
Accepted Answer
Sodium trimetaphosphate (STMP) is a water-soluble polyphosphate that is often used as a crosslinking agent for starch and other polysaccharides. When STMP is added to starch, it forms crosslinks between the starch molecules, which reduces the amount of water that the starch can absorb as well as increasing its mechanical strength. To mix STMP into bio-adhesive cassava starch, you can follow these steps:
1. Dissolve the STMP in water. The amount of STMP you need to use will depend on the desired level of crosslinking.
2. Add the STMP solution to the cassava starch.
3. Stir the mixture until the STMP is evenly distributed.
4. Allow the mixture to stand for a period of time to allow the crosslinking reaction to occur.
The amount of time required for the crosslinking reaction to occur will depend on the temperature and pH of the mixture. Once the crosslinking reaction is complete, the modified starch can be used to create the desired bio-adhesive material.
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