SIVA Antioxidant Masterbatches
Antioxidants are used to protect polymers from degradation, both during processing (short term stabilization) and during use (long term stabilization). Polymer degradation generally results in gel formation and changing melt flow index, loss of mechanical and a esthetical properties (crazing, gloss reduction, chalking), and discoloration. Plastics generally ages rapidly under the effects of light, oxygen and heat leading to:
- Loss of strength, stiffness of flexibility
- Discoloration
- Scratching and loss of gloss
Mode of Action
Generally during polymer degradation free radicals are formed, resulting in uncontrolled chain reactions. Anti-oxidants are used to decrease the amount of free radicals by different mechanisms e.g. by avoiding the formation of free radicals using complexion agents or hydro peroxide decomposers, or by decreasing the amount of radicals using radical scavengers or hydrogen donors.
Applications
- Agriculture
- Automotive & Transportation
- Building & Construction & Landscaping
- Consumer Products.
- Durable Products
- Electrics & Electronics
- Fibers &Textile
- Flexible Packaging Industrial Packaging
- Printing & Labelling
- Rigid Packaging
Processing Methods
Blown Film | Cast Film | Lamination | Oriented Flat Film
JJ Plastalloy has introduced a high-efficiency antioxidant masterbatch that protects reprocessed or recycled polyolefin from degradation during processing.
It is allowing Plastic processors to use more recycle without detrimental effects on aesthetic or physical properties.
SIVA antioxidant masterbatch is particularly beneficial in applications like clear packaging films, where cost-savings initiatives are driving use of more recycle, but gels are not tolerated.
Processors are also running their lines faster and at higher temperatures.
JJ Plastalloy has developed high-efficiency antioxidant masterbatch solves this problem by boosting the thermo-oxidative stability of recycled material.
SIVA antioxidant protects against degradation, gel-formation, and yellowing, processors.
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