MMB (MMBI)
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  • MMB (MMBI)

MMB (MMBI)

Category:

Antioxidants

Wires, cables, conveyor belts, footwear materials, sports goods, and latex foam products.

Keywords:

MMB (MMBI)

Product Description

Product Name

MMB (MMBI)

Chemical Name

2-Mercapto-4( or 5)-methylbenzimidazole

Chemical structural formula

CAS Registry Number

53988-10-6

Technical Indicators

Parameters

Standard

Product form

Powder

Appearance

Off-white

Heating loss (%) (≤)

0.3

Ash content (%) (≤)

0.5

Residue on 63 μm sieve (≤)

0.5

Residue on 150 μm sieve (≤)

0.1

Application

Characteristics

  • Used as an antioxidant in natural rubber,synthetic rubber,and their latices, providing effective protection against copper degradation; also employed as an auxiliary antioxidant and heat stabilizer for diene-based plastics.
  • Exhibits a synergistic effect when used in combination with other antioxidants (e.g., amines, phenolics),decomposing hydroperoxides generated during rubber aging and imparting excellent heat and oxygen aging resistance, with enhanced effectiveness in peroxide curing systems.
  • Disperses readily in rubber but has limited solubility; shows no discoloration under sunlight but is slightly staining.
  • When applied in sulfur-free or low-sulfur/high-accelerator vulcanization systems, imparts good heat resistance to the rubber compound.
  • Usage level: 1.0-1.5 phr.

Purpose

Wires, cables, conveyor belts, footwear materials, sports goods, and latex foam products.

Packaging

Kraft paper bag

25 kg kraft paper bag

Storage Period

24 months

Color code

■Deep Gray

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