What factors affect the flame retardant properties of textile silicone?
| Category | Key Factors | Effect on Flame Retardancy |
|---|---|---|
| Formula/Raw Materials | Types of flame retardants (ATH/MDH, phosphorus-based, boron-based, platinum-based) | Provide heat absorption, charring, gas-phase inhibition, and smoke suppression synergy |
| Dosage and proportion of flame retardants | Usually, there is a positive correlation between dosage and effect, but excessive dosage will deteriorate processing and physical properties | |
| Base rubber and curing system | Addition (platinum) curing is easier to reach V-0 and has low by-products | |
| Fillers and surface treatment | Improve dispersion and compatibility, enhance charring and smoke suppression | |
| Cross-linking density and structure | High-temperature stability, promote charring/ceramization | |
| Process | Uniformity of mixing and dispersion | Avoid agglomeration to form weak points |
| Vulcanization conditions (temperature/time/pressure) | Under-vulcanization significantly reduces flame retardancy and physical properties | |
| Coating/bonding method and thickness | Thickness and continuity directly affect flame retardancy performance | |
| Testing/Application | Testing standards and thickness | There are large differences in judgment thresholds for different thicknesses |
| Substrate and fabric structure | Affect adhesion and heat transfer paths | |
| Use environment (temperature and humidity/washing) | Aging and washing may weake |