 |
 |
|
|
|
| L-5340 |
 |
Silicone Surfactant
L-5340 was developed to fill the rigid foam industry's need for a very efficient, isocyanate compatible,liquid surfactant. In very critical laboratory tests, L-5340 proves to be highly efficient in many types of formulations. L-5340 can be used in formulations containing crude TDI or polymeric MDI and provide stable isocyanate blends. It can be used to stabilize standard formulations where an isocyanate-compatible product is desired, and should be evaluated in those formulations where the standard surfactants are inadequate to provide the desired performance properties. The ability of L-5340 to stabilize formulations with high hydroxyl polyols and water is an example of its unique performance. With the recent trend toward higher isocyanate indices common in isocyanate foam formulations have come new requirements for the silicone surfactant. This relatively new technology has increased the ratio of isocyanate to polyol, thus placing increased importance on the ability of polyol and isocyanate to emulsify efficiently. L-5340 has been demonstrated as an excellent product in these types of applications because of its ability to improve this mixing.
The optimum concentration of L-5340 silicone surfactant depends on many variables such as formulation ingredients, type of applications, or mold complexity. A starting concentration of 1.0∼1.5 parts by weight per 100 parts of polyol is recommended. This generally corresponds to 0.5∼0.6 weight percent based on the total formulation. In isocyanurate foam, this recommended use level may need to be increased. The best loading should be determined using each specific formulation and type of equipment. Some typical formulations using L-5340 are given below. |
 |
Physical Form : Liquid
Color, GVS : 4
Viscosity at 25'C: 700cSt
Specific Gravity at 25/25'C: 1.051
Hydroxyl Number, mg KOH/g : 20
Pour Point : 10'C(50'F) |
|
|
|
 |
 |
|
Nine Chemical
|
| 전화번호 |
+82-2-578-3701 |
| 팩스번호 |
+82-2-553-9505 |
| 홈페이지 |
ninechem.com |
| 이메일 |
-
|
| 주소 |
Dowon Building 3 floor, 840-9, Yoksam-dong, Kangnam-gu |
|
 |
|
|
|
|
|
|
|
|
