Milastomer™, thermoplastic Vulcanizate (TPV), contains no hygroscopic filler, so there is no need to dry prior to processing. The material can be processed using injection or extrusion molding.
Milastomer™ has good fluidity and low crystallinity, enabling the development of products with nice aesthetics because it is difficult for sink marks to form at ribs and parts with uneven thickness, and welds tend not be conspicuous. Spruces, runners, burrs, and scraps can be reused. The thermal stability of Milastomer™ is good and corrosive gases tend not to be produced even by thermal decomposition. General purpose molding machines are suitable for processing.
|Product wall thickness||Cooling time|
|1||Cylinder temperature||C1/C2/C3/N=200/220/220/220 (°C)|
|2||Die temperature||30-50 °C||4 mm||40 sec|
|3||Injection Speed||Set comparatively slow||5 mm||50 sec|
|4||Cooling time||Varies depending on product shape and die temperature. Product wall thickness and standard cooling times are given in the table at right.|
Milastomer™ has comparatively high melt viscosity, low temperature dependence of viscosity and relatively small die swell, facilitating extrusion molding of an odd shape with complex profile. Odd shapes with complex profiles are difficult to mold with conventional polyolefin resin.
If you are considering other types of molding such as blow molding, calendar molding, thermal fusion bonding, vacuum molding, and foaming, please contact Mitsui Chemicals America.