User:Helena Teresa/sandbox

6 days ago 165

Advantages and limitations

← Previous revision Revision as of 14:29, 9 July 2025
Line 81: Line 81:
<u>Advantages</u>:
<u>Advantages</u>:


* '''Low processing temperatures''': In contrast to classical sol-gel, the conversion of PHPS can take place at room temperature. This makes it compatible with polymeric or sensitive substrates.
* '''Low processing temperatures''': In contrast to classical [[sol-gel]], the conversion of PHPS can take place at room temperature. This makes it compatible with polymeric or sensitive substrates.


* '''Solubility and processing''': PHPS is soluble in non-polar solvents, which makes spin coating, dip coating and electrospinning possible.
* '''Solubility and processing''': PHPS is soluble in [[non-polar]] solvents, which makes [[spin coating]], [[Dip-coating|dip coating]] and [[electrospinning]] possible.


* '''Pure end product''': Since PHPS does not contain any organic residues, it produces a virtually carbon-free silica after complete conversion.
* '''Pure end product''': Since PHPS does not contain any organic residues, it produces a virtually carbon-free silica after complete conversion.


* '''Precise patterning''': Due to its compatibility with UV and lithographic techniques, patterns and structures on a micron to nanometer scale can be realized.
* '''Precise patterning''': Due to its compatibility with UV and [[Lithography|lithographic]] techniques, patterns and structures on a micron to nanometer scale can be realised.


<u>Disadvantages</u>:
<u>Disadvantages</u>:
Line 95: Line 95:
* '''Limited long-term stability''': With long-term storage, the viscosity and reactivity may decrease due to slow polymerisation.
* '''Limited long-term stability''': With long-term storage, the viscosity and reactivity may decrease due to slow polymerisation.


* Shrinkage and Cracking: Significant volume shrinkage occurs during thermal post-treatment, which can induce stresses in the material.
* '''Shrinkage and Cracking''': Significant volume shrinkage occurs during thermal post-treatment, which can induce stresses in the material.


* '''Limited Commercial Availability''': PHPS is not widely available and often requires laboratory synthesis
* '''Limited Commercial Availability''': PHPS is not widely available and often requires laboratory synthesis
Open Full Post