Characteristics of CELPURGE MA2
Characteristics of MA2
MA2 is the most “true-to-fundamentals” grade of CELPURGE, and its main characteristic is quite simply its universal applicability. CELPURGE’s cleaning performance is based on the mechanism described in article No. 2. It offers the superior self-purging performance that distinguishes CELPURGE without including inorganic fillers and other additives to raise abrasion. Thus it is also especially ideal for PC, PMMA, AS, ring polyolefins (COP, COC), and other transparent resins. Styrene resin is used for the base resin. Styrene resin is one component of the polymer alloys that Daicel Polymer has incorporated in its products for many years due to its distinctive compatibility with a variety of other resins, making it well-suited for purging compounds. As an amorphous resin its viscosity does not drop even when temperatures increase, therefore it can be used in a wide range of processing temperatures and is applicable for everything from general-purpose resins to engineering plastics.
If you are unsure of which grade of CELPURGE to choose, start with MA2.
［ Examples of applicable Resins ］
- General purpose resins : PE, PP, PS, AS, ABS
- Acrylic resins : PMMA, MS, MBS
- Polyester : PBT, PET
- Polyamide : PA6, PA66
- m-PPE
- Various polymer alloys : PC/ABS, PBT/ ABS, PA/ABS, etc.
- Transparent plastics : PC, PMMA, AS, and ring polyelfins (COP, COC)
Removal of Carbide Film from Cylinder and Screw Surfaces
As mentioned in item 1), MA2 also contains a component that plasticizes carbonized materials. Therefore MA2 is effective to remove the partially cross-linked / carbonized layers on surfaces of the cylinder and screw in the molding machine. However, some of these carbide films are too stubborn even for MA2. In these situations, filled grades are effective because they contain additive fillers that improve abrasion. ( Please also refer to “Concept of removal of carbon contamination.” )
