Basic characteristics
(HT A-103) is a very typical anionic-non-ion surfactant with good properties for washing, emulsifying, dispersing, moisturizing and compatibilizing, and its molecular formula is C39H66O17Na2S with a molecular weight of 884.98.
Its structure is unique (see below): benzene ring, ethylene oxide chain in the water was irregular bending stretch, providing a greater steric hindrance; at the same time, located in the succinic acid chain on the sulfonic acid and molecular The end of the carboxylic acid groups, are strong negatively charged hydrophilic groups, resulting in the system charge density, wide distribution, so that the system has a very good resistance to electrolyte and high mechanical stability.
In addition, it has excellent co-solubility with divalent and trivalent cations and quaternary ammonium surfactants, so that its dissolution, compatibilization, lime soap dispersibility and other properties have improved greatly, so it can not only be used alone, but also As the main Emulsifier with other anionic, non-ion or even multi-valent cationic surfactants used. Widely used in foam cement, leather, dyes, coatings, adhesives, especially the emulsion synthesis industry.
It is worth mentioning that when the emulsion is polymerized, it is particularly suitable for the synthesis of vinyl acetate emulsion, vinegar emulsion, vinegar and acrylic emulsion and pure acrylic emulsion; it can give the emulsion smaller particles, produce high solid low viscosity emulsion So that it is a very important and effective latex particle size improver; and can be used as a post-addition stabilizer for the production of latex, and it is also a very important and effective latex particle size improver; . For self-crosslinking emulsions, HT A-103 does not affect cross-linking of cross-linked monomers such as N-methylol acrylamide, as with some Emulsifier, which does not contain any organic volatile components.
HT A-103 molecular structure diagram
Has the following characteristics:
U high activity
U widely used
U can be used alone
U resistant polyvalent cation
Part of the physical and chemical properties
Appearance (25 ℃) colorless to light yellow liquid
Color (APHA) <150
Active content (wt%) 25-26
Solid content (wt%) 32-35
PH (1% aqueous solution) 5.0-7.0
Specific gravity (25 ° C, g / cm 3) 1.060 to 1.090
Viscosity (25 ℃, CPS) <200
Freezing point (10% aqueous solution, ℃) 0
Flash point (closed cup, ℃)> 93
Acid value ≤10.0
Iodine value ≤ 0.5
Critical micelle concentration (CMC) (wt%) 0.010-0.020
* The above indicators are the company's internal control indicators, not the product sales of the indicators
Solubility
Partially dissolved in a polar solvent
Insoluble in nonpolar solvents
Completely dissolved in water
Foaming
Improved ROSS-MILES foam test (GB / T7462-94)
HT A-103 Foam height ml (0.5%, 25 ° C)
At the beginning: 140
After 15 minutes: 50
Surface Tension
HT A-103 surface tension test, in the following concentration of aqueous solution, the temperature at 25 ℃ under the conditions measured, the results are as follows:
Concentration (wt%) 0 0.005 0.008 0.01 0.012 0.015 0.017 0.02 0.05 0.1 0.11
Surface tension 72.0 61.3 57.8 57.0 55.1 55.8 54.5 48.0 45.2 43.2 43.0
Electrolytic
The 5% surfactant solution and the following salt solution were separately prepared and the surfactant solution was added dropwise to the salt solution. When V salt: V = 2: 1, no turbidity was observed, indicating "excellent"; when V salt: V = 1: 1 occurs slightly turbid, said "good"; when V salt: V table = 1: 1 turbidity, after the swing can be changed to clear, said "general".
Ca (NO3) 2 · 4H2O or MgSO4 (anhydrous) is excellent
AlCl3 · 6H2O is good
FeCl3 · 6H2O in general
Moisture (Draves test)
HT A-103 was used to determine the permeation time (average) of the product by wetting (% aqueous solution, 3 strands of 21 x 3 strands of 21, 15 x 1.5 cm 2 canvas), and the results were as follows:
HT A-103 Dose (%) 0.01 0.025 0.05 0.1 0.25 0.5
Wetting time (seconds) 1198 508 293 143 77 73
Applications
|
Emulsion synthetic non-woven soft paste: pure acrylic emulsion |
Emulsion performance test |
|||
|
raw material name |
Reactor |
Titration tank (pre-emulsification) |
Initiator |
Solid content,%: 45 Amount of gel,%: 0.01 Viscosity, CPS: 100 Particle size, nm: 50-100 Mechanical stability, seconds: More than 600 |
|
Deionized water |
300 |
92 |
27 |
|
|
Butyl acrylate |
10 |
80 |
- |
|
|
Methyl acrylate |
30 |
170 |
- |
|
|
acrylic acid |
- |
3.5 |
- |
|
|
Itaconic acid |
- |
1.7 |
- |
|
|
N-methylolacrylamide (48%) |
- |
15 |
- |
|
|
Styrene |
90 |
|||
|
Methyl methacrylate |
twenty four |
40 |
- |
|
|
Hydroxyethyl methacrylate |
- |
3.5 |
- |
|
|
HT A-103 |
1.7 |
5.3 |
- |
|
|
HT OT-70 |
- |
3.5 |
- |
|
|
HT DBMS-45 |
2.8 |
3.9 |
- |
Thermal stability (100 ℃ drying): film is not yellow |
|
Ammonium persulfate |
- |
- |
1 |
|
|
Ammonium persulfate / water (priming) |
1/20 |
- |
- |
|
Biodegradation and environmental protection
HT A-103 is not classified as environmentally hazardous by the State. This product may be partially biodegradable. The product contains APEO components and is not recommended for use with various detergents; nor is it recommended for shampoos or used as pesticides.
Health and safety
Before using the product, please carefully read the material safety data (MSDS) of our HT A-103 product. The toxicity data indicate that HT A-103 does not have any significant health hazard in routine industrial operation.
Storage and operation
Please keep HT A-103 in a cool, ventilated place. Store at 15 ° C to avoid gel. If gel occurs due to low temperature or water dispersion, dissolve above room temperature or add proper amount of water. The quality of the product will not change due to solidification.
Calcium plastic materials, enamel, stainless steel and other materials produced by the container, are suitable for HT A-103 storage and processing under normal conditions, the product can save at least one year.
Important statement
The contents of this document are based on the company's research, honest and reliable. The customer has the responsibility to verify and determine the product and
Whether the materials are suitable for their own use. The manufacturer and the seller are not responsible or liable for the information in this document.
Unauthorized, the information in this article shall not be used as any patented invention.