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Non-staining Antioxidant |
Behaviour in vulcanization
NAFTONOX ZMP is a highly efficient non-staining antioxidant which cannot be washed out and which is based on a polymeric, steric hindered bisphenol. It is an antioxídant for natural rubber and all synthetic rubbers, less suitable for EPDM, IIR and heat resistant special rubbers.
NAFTONOX ZMP is used for white, light coloured and transparent vulcanizates on natural rubber and all synthetic rubbers and their latices. 1t protects the vulcanizates against ageing under the action of oxygen and/or heat. The low volatility of NAFTONOX ZMP is especially important since due to it the loss of antioxidant is extremely low during work, the following vulcanization and with the finished product. The resistance against washing and boiling, when used in latex thread and many latex foam backings, is excellent.
NAFTONOX ZMP undergoes no discoloration on exposure to sunlight. I does not bloom nor does it affect the mechanical properties of vulcanizates.
Typical fields of application
White, transparent and coloured rubber goods, e.g. tubes, profiles, toys, bathing articles, etc. Latex products, e.g. carpet backing, rubber thread, latex foam, dipping articies, etc. Hot melt formulations on the basis of EAM or EVA, thermopiastie rubber and polyaminoamides.
Dosage
According to the required protection the dosage should range from 0.5-1.0 phr. Although NAFTONOX ZMP is slightiy less effertive than NAFTONOX 2246 it behaves favourably with regard to staining, notably in oxidizing environments.
Food contact applications
BGA: Empf. XXI, Cat. 1 FDA: Regulated in CFR 21, § 177.2600
Shelf life
2 years minimum when avoiding extremely high temperatures and humidity.
Standard packing
Multi-ply paper bags with PE-Iining, 15 or 20 kg.
Product information
| NAFTONOX ZMP | Product form: powder |
| Product Specification | |
| Melting point start (°C) min. | 105 |
| Sieve residue 63 micro (%) max. | 4 |
| Evaporation loss (100°C/2 h) (%) max. | 1.0 |
| Ash content (%) max. | 0.5 |
| Colour | cream coloured powder |
| Appearance | free of hard parts and conglomerations |
| Typical Propertics | |
| Specific gravity 20°C g/cm3 | approx. 1.3 |