POWSIL-99050 is a reactive amino functional silicone fluid developed for textile softener use and has low D4 & D5 content. It can be easily emulsified to a stable micro emulsion that imparts excellent softness, smoothness and elastomeric touch to various kinds of fabrics.
Appearance | Light yellowish translucent liquid |
Silicone Content (wt%) | ~100 |
D4 (Octamethylcyclotetrasiloxane) | <1,000 ppm |
D5 (Decamethylcyclopentasiloxane) | <1,000 ppm |
Viscosity (25°C, cps) | ~1,000 |
Specific gravity (25 ºC) | 0.98 |
Refractive Index (n D25) | 1.406 |
Amine equivalent (ml 1N HCI/g) | ~0.30 |
How to prepare a clear micro-emulsion
A typical formulation & procedure (recommended)
Raw Materials | Wt% | Remarks |
POWSIL-99050 | 15.0 | Silicone oil |
Lutensol TO 7 | 5.66 | Emulsifier from BASF |
Lutensol TO8 | 2.10 | Emulsifier from BASF |
Butylcarbitol | 2.75 | Co-solvent |
Also called as diethylene glycol monobutyl ether | ||
Initial water | 10.0 | |
Acetic acid | 0.25 | |
Final water | Balance to 100% | |
Biocide | 0.02 |
Procedures:
Charge POWSIL-99050 silicone fabric softener, T07 & TO8 and Butyl Carbitol into a mixing tank. And start to mix for 15-20 min;
Premix initial water and acetic acid to form an acidic solution. Charge the solution slowly into the soft grease. The charging should take about 30 minutes. After all of acidic solution has been added, continue to mix the content for 15 min to get a clear grease;
Start to add the final water under stirring;
Reduce the agitation speed after ¾ of the final water has been charged. Continue to mix another 15 min after all the water has been charged.
Add biocide and mix for 10 minutes before drumming;
A clear emulsion will be obtained.
To ensure that the high quality silicone product is maintained, the container should be tightly sealed when not in use.
It should be stored at normal room temperature, preventing prolonged exposure to extreme heat and cold conditions, which may cause product separation. If the product is separated, stir the contents. If the product is frozen, thaw it at warm condition and stir after thawed.