2,4,7,9-Tetramethyl-5-Decyne-4,7-Diol CAS 126-86-3 surfactant is a multifunctional additive with wetting,defoaming, and dispersing properties.
It is a symmetrical non-ionic surfactant with a unique twin chemical structure, providing features such as reducing surface tension, controlling
foam, and decreasing water sensitivity. It can be applied in various industries, including water-based industrial coatings, water-based wood coatings,
water-based plastic coatings, water-based inks, OPV, pressure-sensitive adhesives, pigment and dye manufacturing, metal processing, flux agents, pesticides etc.
1. PRODUCT DATE SHEET
Chemical composition: 2,4,7,9-tetramethyl-5-decyne-4,7-diol.
Code: TMDD
Typical materialized data: The data given on this data page is only a typical value,
not a technical indicator of the product.
Type 1: Purity 98%
| Item | Value |
| Appearance | Colorless to light yellow paste |
| Color, APHA | ≤100 |
| Purity, GC | ≥98 |
| Moisture | ≤0.30 |
Type 2: Ethylene glycol solution
| Item | Value |
| Appearance | light yellow transparent liquid |
| Chroma/degree | ≤100 |
| TMDD content/% | 47.5 – 52.5 |
| Ethylene glycol content/% | 47.5 – 52.5 |
| Static surface tension/mN/m | 29 – 30 |
2. Usage Notice
It is recommended to add emulsion or resin and other surfactants first,then add wetting agent surfactants.This ensures maximum dispersion into the system,
requiring thorough dispersion for 15-30 minutes. Some wetting agent series surfactants may crystallize during transportation or storage at extremely low temperatures;
gentle heating during slight dispersion can restore them well.
3. Application Guidelines
3.1 Advantages:
Spread rapidly,reducing dynamic and static surface tension, defoaming, and antifoaming, low water sensitivity, wetting various substrates without forming
micelles.good thermal stability and acid-alkali resistance.
3.2 Wetting:
Water-based systems have higher surface tension than solvent systems,and it is necessary to add a surfactant to improve the wettability.Traditional wetting
agents often cause foam and stability issues. wetting agent series products can overcome these problems, offering superior performance in providing low surface
tension and defoaming even under dynamic conditions.
3.3 Defoaming:
wetting agent series surfactants, with their unique molecular structure, act as excellent symmetric non-ionic defoaming agents. They exhibit persistent defoaming
properties over a wide temperature range without clouding point.
3.4 Water Sensitivity:
Many surfactants cause water sensitivity issues on dried coating surface. Highly hydrophilic surfactants such as anionic (dioctyl sulfosuccinate) or polyethoxylate
surfactants are easily resolubilize in water, causing surface defects in dried coatings such as stickiness and whitening, atomization, and poor water resistance.
4. Additives&Instruments
GUIDELINES
- Aqueous coating
- Aqueous pressure sensitive Adhesive
- Fountain solution
- Jet ink
- Latex dipping
- Plating solution
The additive is recommended for producing stable universal pigment concentrates.
5. USE
Aqueous coating： 0.1%—3.0%
Aqueous pressure sensitive adhesives： 0.1%—1.0%
Fountain solution： 0.1%—1.0%Jet ink： 0.1%—1.0%
The above data is the empirical amount, and the optimal dosage is determined by a series of tests.
6. PACKING
20kg/ 25kg / 200kg drum
Post time: Feb-29-2024