TDAE

AcronymDefinition
TDAETreated Distillate Aromatic Extract
TDAETetra-Kis Dimethylamino Ethylene
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Chemicals TP1 TP2 TP3 TP4 TP5 TP6 TP7 TP8 ENR 15 70 15 30 -- -- 30 30 SBR 15 15 70 -- 30 30 -- -- BR 70 15 15 70 70 70 70 70 ZnO 5 5 5 5 5 5 5 5 TMTD 1 1 1 1 1 1 1 1 CBS(CZ) 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 S/A 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 Sulfur 2.1 2.1 2.1 2.1 2.1 2.5 2.5 2.5 MA 3 3 3 3 3 -- 3 3 N550 25 25 25 25 25 25 25 25 N330 10 10 10 10 10 10 -- 10 TDAE 10 10 10 10 10 10 10 10 Silica 10 10 10 10 10 10 10 -- TESPT 3 3 3 3 3 3 3 -- TMQ 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 6PPD 1 1 1 1 1 1 1 1 Retarder 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Wax 1 1 1 1 1 1 1 1 (a) Parts per hundred parts of rubber.
S-SBR (6450SL) E-SBR (1723) Styrene content, % 34.6 23.4 Vinyl content, % 40.1 N/A TDAE oil content, phr * 37.5 37.5 Mooney viscosity, MU ** 53.2 49.1 * Parts per hundred rubber.
The KNM Group disclosed, The TDAE plant is to produce carcinogen-free (green) rubber process oils for synthetic rubber and tyre industries.
The Nynas oils have been developed specifically for tyre production and the company says that from a technical viewpoint they are an equivalent alternative to TDAE oils.
Then, half of the silica and silane were added and mixed for 5 min, prior to adding the second half of silica and silane together with TDAE oil.
Ingredients Amount (phr) NR (RSS3) 100.0 Silica (Ultrasil 7005) 55.0 TESPT (or other) (a) 5.0 (or variable) (b) Process oil (TDAE) 8.0 Zinc oxide 3.0 Stearic acid 1.0 TMQ 1.0 DPG 1.1 CBS 1.5 Sulfur 1.5 (a) Five types of silane modifying agents were studied as summarized in Table 2.
An 8.2% weight loss was observed in formulation 1 (TDAE) after 20 days; however, formulations 2-4 maintained almost half because of the co-vulcanizability of LBR (figure 7).
Weight loss of 8.2% was observed in formulation 1 (TDAE) after 20 days; however, formulations 2-4 lost only half as much because of co-vulcanizability of LBR (figure 7).
After the addition of 37.5 phr TDAE oil, Buna FX 3234A-2HM, as well as Buna VSL 3038-2HM display a Mooney viscosity of 80 MU, a high value that additionally is said to ensure excellent abrasion resistance.
The current commercial silica masterbatch products are based on naphthenic, aromatic, TDAE and RAE oils.
As of 2010, all tires for sale in the European Union must comply with the polyaromatic hydrocarbon (PAH) limits set by the REACH regulation, forcing rubber and tire manufactures to move away from carcinogenic distilled aromatic extracts (DAE) in favor of process oils with low PAH contents, such as heavy naphthenic oil (HN), naphthenic black oil (NBO), treated distilled aromatic extracts (TDAE), residual aromatic extracts (RAE) and mildly extracted solvents (MES).
Figure 6 illustrates how LFR reduces viscosity during rubber processing: It lowers viscosity significantly more than in the absence of any plasticizer, and just slightly beyond the reduction created by adding TDAE (treated distillate aromatic extract), a typical tire processing oil.