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Predispersed Rubber Chemicals DTDM-80
Category : Catalyst and Auxiliary/Rubber Auxiliary Agent
CAS NO : EC NO : MF : MW : Packing : 25 kg Product description : Detailed Product Description Manufacturer experienced,Stable , continuable,environmental ISO9001,ISO14001,REACH pre-register.Powder,Granular,Masterbatch Product description Composition 80% morpholine disulfide (4,4'-dithiodimorpholine), 20% EPDM/EVA binder and dispersing agents Appearance Grey granules Density,20 oC Approx. ~ 1.25 g / cm3 (20oC) Physiological properties : See safety data sheet (MSDS) Raw material characteristics of DTDM: Melting point ~ 118 oC Evaporation loss ≤ 0.5 % DTDM content ≥ 96 % Sieve residue 63µm ≤ 0.8 % Ash content ≤ 0.5 % Sulfur content 25.0-29.0% Use Characteristics The curing accelerator HiDispersion DTDM-80 liberates free sulphur which, in contrast to normal sulphur, mainly forms mono and diether bridges under normal curing conditions. These are responsible for excellent heat ageing resistance of the vulcanizates. HiDispersion DTDM-80 causes no blooming effects which are generally observed when using thiuramdisulphides as crosslinking agents. In contrast to compounds with HiDispersion CLD-80, compounds with HiDispersion DTDM-80 stand out for their increased safety in scorch properties. When the full curing temperature is reached, a quick vulcanization follows. Acid compounding ingredients may cause a premature decomposition of HiDispersion DTDM-80 and thus reduce the excellent scorch safety (long scorch time). In general the use of HiDispersion DTDM-80 is recommended whenever favourable compression set behaviour and advantageous ageing behaviour is required. Processing Advantages The thermoplastic, excellent compatible EPDM/EVA binder which is combined with active dispersing promoters allows much more easily and quickly incorporation and excellent dispersion in the rubber mixing. In this way, optimal activity of the effective DTDM is assured. Dosage levels NR and SBR with carbon black light color fillers HiDispersion DTDM-80 1.0 - 2.0 1.0 - 2.0 phr HiDispersion S-80 0.25 - 1.0 0 .25 - 1.0 phr HiDispersion CBS-80 0.5 - 0.75 - phr HiDispersion MBTS-80 - 0.3 - 0.5 phr HiDispersion TMTD-80 - 0.3 - 0.5 phr NBR and IIR NBR IIR HiDispersion DTDM-80 1.0 - 2.0 1.2 - 2.0 phr HiDispersion S-80 0.0 - 0.5 1.0 - 1.75 phr HiDispersion CBS-80 1.5 - 3.0 - phr HiDispersion MBTS-80 - 1.0 - 2.5 phr HiDispersion TMTD-80 0.5 - 2.5 1.0 - 2.5 phr For sulfurless vulcanization HiDispersion DTDM-80 1.25 - 2.0 phr HiDispersion CBS-80 1.0 - 1.5 phr HiDispersion TMTD-80 1.0 - 1.5 phr. Applications articles resistant to reversion based on NR, such as tyre carcasses and age-resistant articles based on SBR, NBR and EPDM. Packing Net 25 kg cartons with plastic inner. Storage stability In original closed containers under cool and dry conditions max. 2 years. Handling Consult material safety data sheet (MSDS) for additional handling information. Uses : rubber products Synonyms : no data
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