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Description Application
Functional master batches give special characters to final products. The functional additive master batch has one or more functional concentrated agents with different properties. If it is blended with polymers then the final products will have the special function as it inherent property.

Plastic moulded products, Plastic films, Industrial materials

 
Anti-static M/B Anti-microbial M/B Frame Retardant M/B
UV Stabilizer Foam M/B  
 
1) Base resin: LDPE,HDPE,PP,PS,ABS,etc
2) Purpose of use
Remove electrostatic and provide slippery and easy openings.
Prevent dust contamination
3) How to minimize electrostatics
Reduce the time required for mixing
Reduce the amount of material stored in silo
4) Resistivity of Plastics
• PE : 10E15~10E19 Ω
• PP : 10E16 Ω
• PS : 10E13~10E19 Ω
5) Recommended dosage: 10%
1) Overview
Used to improve anti-microbial properties with good durability
Harmless to men
2) Application
Chopping board, Roll-bag, Film for food packaging, Water filter, Household goods, Others
3) Bacteria
kinds Characteristic
  Escherichia coli Causing diarrhea and other dysenteric symptoms. Its presence in water is an indicator of fecal contamination
  Pseudomonas aeruginosa Commonly found in soil, water, and decaying matter and including some plant and animal pathogens
  Salmonella spp Causing typhoid and food poisoning
  Staphylococcus aureus Usually occurring in grapelike clusters and causing boils, septicemia, and other infections
  Bacillus subtilis Decaying milk and meat
  Cladosporium cladosporioides
Widely distributed in air and rotten organic material and frequently isolated as a contaminant on foods
4) SAMHWA developed anti-microbial rein used for cap liners, which is certificated by FITI
      Flame Retardant
1) Purpose of Use
Increase the resistance of plastics to ignition or reduce the amount of flame spread or dripping of burning material
2) Principle of frame retardant
Inhabit or resist the spread of fire by controlling factors to cause combustion such as flammable materials, heat, light and oxygen
3) Kinds
① Organic: phosphorus, bromine, chlorine
② Inorganic : aluminum hydroxide, antimony, magnesium hydroxide
1) Factors causing discoloration
① Plastic compounds
→ Caused by each additive such as stabilizer, functional additives, pillar and other resins, including base resin
② Heat energy
→ Caused by radicals occurred when resin is pyrolyzed during exposure to high temperature
→ Discolored into brown of black by long residence time in injection M/C cylinder
③ Light energy
→ Caused by long time exposure to UV and fluorescent lamps
→ Caused by different amount of energy absorbed by product colors
④ Mechanical energy
→ Caused by making mechanical energy change into heat energy
→ possibly caused by over-injected in injection M/C measuring zone with applying insufficient
2) Countermeasures against discoloration
Minimize residence time in injection M/C
Make sufficient purge in the case of long residence in injection M/C cylinder
Protect final products from light in storage
1) Overview
Used to produce cellular foam in the part interior mixed with polymers and enable production of low density products
Advantages of weight reduction raw materials savings, insulation, and increase in sound and shock absorption, and sound effects used for TVs and audios
2) Kinds of foaming agents
 
① ADCA (Azodicarbonamide)
General foaming agent for rubbers and plastics
Non ?toxic and food contact acceptable under FDA regulations
② Modified ADCA
Used to reduce the formation of plateout (cyanuric acid) from azodicarbonamide decomposition that might cause die blockage, mold build-up and screw deposits.
③ OBSH (Oxybis Benzene Sulfonyl Hydrazide)
Widely used for rubber, plastic and mixture of rubber and plastic.
Good flexibility and relatively high cost
④ DNPT (Dinitroso Pentamethylene Tetramine)
Relatively non-discoloring, non-staining and odorless nitrogen type foaming agent that is designed for use in cellular rubber and plastic applications
⑤ Inorganic foaming agent
Effective foaming and nucleating agent for PS, ABS, PE, PP and modified PPO
Usual foaming agents are exothermic systems that liberate large amounts of heat during decomposition. This ordinarily leads to irregular cell structure and local overheating especially in the marginal zones. Contrary to most foaming agents, inorganic foaming agent has endothermic decomposition characteristics.
All ingredients of inorganic foaming agent meet FDA regulations and can be used for food contact.
3) Benefits and applications
① Insulation and sound absorption
ex) Pipe lagging, Car upholstery
② Low specific gravity
ex) Fishing equipment, Life jacket
③ Shock absorption
ex) Packaging material, Shoe sole
④ Dimensional stability
ex) Injection molded product
⑤ Decoration
ex) Wall covering, Floor covering, sash
⑥ High rigidity
ex) Thin film...

⑦ High elasticity
ex) Sponge, Rubber belt...