ALKOX E grade, and R grade are regular grade of ethylene oxide homopolymer.
We have prepared various grades in the molecular weight range from 100,000 ~ 7,000,000 depending on customers needs of particular applications.
In case of the requirement of high viscosity and stringiness with small amount, high viscosity grade is appropriate and in case of the requirement of only viscosity without stringiness, low or mid range grade is suitable. The requirement high solid concentration without high viscosity, low viscosity grade is suitable for the case.
| Grade | Characteristic | Molecular weight (x 1,000 ) | Concentration (%) | Viscosity of aqueous solution (mPa･s) |
|---|---|---|---|---|
| E-300 | High viscosity | Ca.7,000 | 0.5% | 280 ～ 380 |
| E-240 | Ca.5,000 | 0.5% | 180 ～ 280 | |
| E-160 | Ca.4,000 | 0.5% | 100 ～ 200 | |
| E-100 | Ca.3,000 | 0.5% | 80 ～ 120 | |
| E-75 | Ca.2,000 | 0.5% | 30 ～ 70 | |
| E-60 | Middle viscosity | 1,000 ～ 1,500 | 2% | 1,000 ～ 4,000 |
| E-45 | 600 ～ 1000 | 2% | 150 ～ 600 | |
| E-30 | 400 ～ 550 | 2% | 20 ～ 100 | |
| R-1000 | Low viscosity | 250 ～ 400 | 10% | 1,000 ～ 4,000 |
| R-400 | 200 ～ 300 | 10% | 200 ～ 800 | |
| R-150 | 100 ～ 200 | 10% | 50 ～ 200 |
This data has indicated the relationships between viscosity of aqueous solution of ALKOX and average molecular weight.
Viscosity of aqueous solution drastically increased when use high molecular weight grades.
High molecular weight grades such as ALKOX E-300 shows very high viscosity at 0.5% concentration.
This data has indicated the relationships between viscosity of aqueous solution of ALKOX and concentration.
This data has indicated the viscosity of aqueous solution of ALKOX and viscosity of acetonitrile solution of ALKOX.
Viscosity of solutions of ALKOX in organic solvents are lower than aqueous solution of ALKOX. Viscosity of solution of ALKOX in organic solvent differs by the kind of solvents. ALKOX has viscosity in organic solvents.
| R-150（10%） | E-45(2%) | E-300(0.5%) | |
|---|---|---|---|
| Water | 178 | 343 | 325 |
| Acetonitrile | 59 | 85 | 102 |
This data has indicated the melt viscosity of ALKOX evaluated by melt flow meter.
ALKOX has very high melt viscosity. Especially, high molecular weight grade shows extremely high melt viscosity.
| MFR | Melt viscosity | |
|---|---|---|
| E-300 | 1g/10min. | 49,000 Pa･s |
| E-45 | 9 g/10min. | 7,800 Pa･s |
| R-150 | 684 g/10min. | 110 Pa･s |
| Test temperature | 150.0 degree C |
|---|---|
| Test pressure | 10.0 MPa |
| DIE Length | 2.0 mm |
| DIE Diameter | 1.0 mm |
