What is accelerator DPG?

Accelerator DPG is useful as an accelerator/activator for natural rubber, SBR and NBR. It activates accelerators such as MBT, MBTS and sulfenamides. It is a strong secondary for CBTS, BBTS, OBTS, MBT and MBTS. DPG requires the use of zinc oxide and fatty acids. DPG provides satisfactory processing safety and storage stability to rubber compounds.

What happens if DPG is present in a rubber compound?

ity of the rubber when there is DPG in the compound.When the DPG is present, there is an overall low r silica filler flocculation in the rubber compound. Looking at the viscosity of the rubber before vulcaniza-tion takes place, you can see that the DPG compounds have a lo er viscosity than the compound with no DPG (Fig. 6). This i

What is n n diphenylguanidine (DPG)?

N,N’-Diphenylguanidine (DPG) is a vulcanization accelerator for natural and synthetic rubbers. Furthermore, N,N’-Diphenylguanidine (DPG) a secondary accelerator, activating Thiazoles (MBT, MBTS), Thiurams (TMTM, TMTD) or Sulfenamide (CBTS) in NR (0.1-0.5phr), SBR (0.15 – 0.75phr) and NBR (0.1-0,5phr) applications.

What is DPG chemistry in silica compounds?

er-filler network.DPG chemistry in silica compoundsDPG or N, N’-Diphenylguanidine is normally characterized as a secondary accelerator for atural rubber and styrene butadiene rubber (Fig. 1). This accelerator begins to melt around 145°C and begins to decompose around 140°C. DPG decomposes in

Is DPG a carcinogen?

e of DOTG, has been attracting a lot more attention. DOTG decomposes into o-Toluidine, which is potentially carcinogenic. DPG also contains n aromatic amine that is released, which is aniline. Aniline itself is a toxic chemical and m

What is DPG used for?

DPG requires the use of zinc oxide and fatty acids. DPG provides satisfactory processing safety and storage stability to rubber compounds. In light colored goods, it causes a brown discoloration and is not recommended for use in compounds that have contact with food (imparts bitter taste). For best aging results, an antioxidant is required.