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Rubber Vulcanizing Accelerator NOBS (MBS/MOR)

FOB Price: Negotiable Min.Order: 34Piece(s)
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Category: Rubber Chemicals >> Vulcanizing Agents & Auxiliaries >> Accelerators
Date Posted: 26-10-2016 Updated Date: 21-01-2017
Expire Date: 30-11--0001 Serial/Model No.: RC-AC006
Trademark: Excelle Origin: China
Description:

ITEM

INDEX

 Top Grade

 First Grade

 Second Grade

Appearance (Visual   inspection)

Faint yellow or orange   granules

Initial M.P, oC ≥

81.0

80.0

78.0

Loss on drying, % ≤

0.40

0.50

0.50

Ash, % ≤

0.20

0.30

0.40

Insoluble in Methanol, %   ≤

0.50

0.50

0.80

Free amine, % ≤

0.50

Purity, % 

95.0


Properties:

Faint yellow to brown granules. The melting point is 80°C. It is soluble in benzene, carbon tetrachloride, ethyl acetate, ethanol, dichloromethane, and acetone; while insoluble in water, gasoline, and acid/alkali with lower concentration.


Usage:

In natural and synthetic rubber tire compound, TBBS is normally used alone or with small quantities of secondary accelerators in combination with sulfur.

TBBS is also used in industrial rubber products with higher levels of secondary accelerators, like as the TMTD to obtain faster vulcanization cycles and improved aging resistance.

TBBS may also be used in EPDM and NBR compounding as the primary accelerator, giving good scorch delay and fast cure rates.

In comparison to CBS it displays a slightly longer scorch delay and is slightly more active. In NR, SBR, BR and blends, TBBS, when used at a 10% lower level, will give equal modulus to CBS and NOBS.


Storage:

Store TBBS in single stacked pallets in a cool, dry and well-ventilated area avoiding exposure of the packaged product to direct sunlight.
Usually the shelf time is 12 months while the recommend use of date is 6 months.

 

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