Lubricants antiblock additives

Ecoflex Batch SL 1 Ecoflex Batch SL 2 Ecoflex Batch AB 1 Ecoflex Batch AB 3 Ecoflex Batch C White Ecoflex Batch C Black Lubricant Lubricant Antiblocking agent Antiblocking agent White batch Black batch 10% Erucamide ESA 5% Wax, additive 60% Eine chalk 40% Very fine chalk 60% Ti02 25% Carbon black... 

Gulf markets three highly transparent EMA resins that are designated 2205, 2255, and TD-938. Grade 2255 is the same base resin as 2205, except that it contains lubricant and antiblocking additives. Gulf literature for these resins Indicate the following features ... 

Fatty acid amides are an important class of polymer additives used as slip agents or lubricants to prevent imwanted adhesion. Actually, the addition of such amides for the purpose of antiblock additives for polymer sheets, in glass laminates has often been found to adversely affect the optical characteristics of the polymer sheet, as well as adhesion of the polymer sheet to glass. 

Surface Property Modifiers with further division into a) solid lubricants/tribological additives that include molybdenite, graphite, PTFE and boron nitride and b) antiblocking fillers such as silica. Chapter 19. 

Stearic acid is frequently used as an external lubricant, especially in many PVC applications. It can be viewed as a co-agent, which in collaboration with other slip and antiblocking additives, contributes to a final effect, and decreases the required concentration of other additives. 

Figures 5.5 and 5.6 illustrate the potential effect of slip agents on performance of antiblocking agents and vice versa. Further details on this subject can be found in Section 8.3. Other additives which potentially affect blocking force primarily include plasticizers and tackifiers, but stabilizers, lubricants, antistatics, surface agents, and cmatives may also potentially affect blocking. Tackifiers are intentionally added to increase blocking, and as such are not the subject of this book. Plasticizers are frequently the very reason to use antiblocking additives, as, for example, in the case of soft polyvinylchloride. A monographic book on plasticizers contains detailed information on plasticizers and their action.

Antiblock additives Antifungal agents Antioxidants Antistatic agents Bactericidal agents Brighteners and whiteners Colorants Expanding agents Impact improvers Lubricants Plasticisers... 

Any additive is a potential source of change to the overall processability from pellet feed to melt rheology. The not uncommon operator comment that one particular color always runs well and another always causes problems is more likely to be fact than superstition. Many products are colored by using masterbatches. whilst extruded products may contain antiblock and slip additives. Injection moldings may contain lubricants to aid mold release or provide product lubrication, e,g., bottle caps. In many cases such nias-terbatches contain low-viscosity polymer waxes to promote additive dispersion (particularly pigments) and masterbatch distribution throughout the natural polymer. There are in fact many additives, including fillers, flame retardants, and antioxidants, that can influence processability. 

Slip, antislip, and antiblock agents [30, 31] do not facilitate molding or semifinished product manufacture as do lubricants. What they do is to simplify further processing - of foils in particular. Foil bags that have been stored in stacks cannot be readily picked up or opened, problems that are particularly noted with LDPE and PP. An effective slip agent with LDPE is addition of 0.05 % oleic acid amide and with PP the same amount of eruca acid amide. Additive manufacturers supply concentrates of these compounds in granulate form for addition to molding compounds [50]. 

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