Main function of polymer additives.
Normally, manufactures choose additives used in plastics materials based on their intended performance over a chemical basis. For more convenience, EuP classifies additives into 8 groups with similar applications and functions.
|Polymerization/chemical modification aids||Accelerators|
Chain growth regulators
|Improvement in processability and productivity (transformation aids)||Flow promoters|
Defoaming and blowing agents
|Increased resistance to degradation during processing application||Acid scavengers|
|Improvement/modification of mechanical properties||Compatibilizers|
Fibrous reinforcements (glass, carbon)
Fillers and particle reinforcements
Impact modifiers (elastomers)
Plasticizers or flexibility
|Improvement of product performance||Antistatic agents|
EMI shielding agents
|Improvement of surface properties||Adhesion promoters|
Anti Fogging agents
Slip and anti blocking agents
|Improvement of optical properties||Nucleating agents|
Pigments and colorants
|Reduction of formulation cost||Diluents and extenders|
Generally speaking, the main applications of additives are to reduce cost and alter polymer properties. In the past, manufacturers just sought to have one or two particular material improvements. However, in present, with the strong and fast development of R&D departments, multifunctional additives are born. Now, we can combine several different additive functionalities together. For example, EuP processing aid and flame retardant in cross-linked epoxies.
Common concerns over additives
There are some typical concerns about additive technology raised by plastics manufacturers and producers. EuP takes the application of injection moulding of polyamides as an example.
However, the appropriate addition of chain extenders and nucleating agents, release agents…etc can tackle the problems without much effort. The benefits of additives are obvious. Additives are not simply a kind of optional ingredient, but an essential factor to plastics producers and manufacturers’ success.
|Main technology concerns|
|Short cycle times|
Better mould release
Plate-out and deposits on moulds and plastics surfaces
Increased dimensional stability, less shrinkage
Processing protection against depolymerisation and
Better melt flow
Improved surface of glass-reinforced parts
Better strength of flow lines in moulded parts
Higher molecular weight
Rise of impact strength and elongation at break
Understand customer’s concern, EuP has developed 10 types of additives that will enhance your products and save cost effectively:
- Weather Stabilizer
- Flame retardant
- Desiccant / Humidity absorber
- Slip Anti-blocking and Slip
- Processing Aid
- Odor scavenger
Contact us for more information and get a solution for optimizing your business.