Evaluation of TBSI. [N-t-butyl-2-benzothiazole sulfenimide]
Concerns over potential health hazards from stable n-nitrosamines have led the rubber industry to seek alternatives for several commonly used secondary amine-based rubber chemicals. Replacing secondary amine based sulfenamide accelerators such as MBS, DIBS or DCBS has not been an easy task. These materials offer long scorch delay and slow cure rate-properties that are required for: (1) optimum steel cord to rubber adhesion, (2) efficient processing of high viscosity compounds, (3) minimization of reversion in thick rubber articles and many other uses. This article discusses an evaluation of a non secondary amine based accelerator: N-t-butyl-2-benzothiazole sulfenimide (TBSI). Although derived from a primary amine, this accelerator is characterized by the long scorch delay and slow cure rate typically associated with the secondary amine based sulfenamides. Using a statically designed screening experiment, TBSI is compared to MBS, TBBS, DCBS and DIBS in a bead filler compound. Contour plots are used to compare trends in key cure characteristics, physical properties and reversion resistance over a wide range of accelerator and sulfur concentrations. The accelerators were also compared in a typical tire cord carcass stock in order to confirm several statistically predicted trends.
- OSTI ID:
- 7071005
- Journal Information:
- Rubber World; (United States), Vol. 206:1; ISSN 0035-9572
- Country of Publication:
- United States
- Language:
- English
Similar Records
NR sulphur vulcanization: Interaction study between TBBS and DPG by means of a combined experimental rheometer and meta-model best fitting strategy
Occupational nitrosamine exposure. 1. Rubber and tire industry
Related Subjects
54 ENVIRONMENTAL SCIENCES
RUBBER INDUSTRY
POLLUTION ABATEMENT
RUBBERS
CURING
SULFENAMIDES
CHEMICAL PROPERTIES
PHYSICAL PROPERTIES
AMINES
HEALTH HAZARDS
MANUFACTURING
TIRES
AMIDES
ELASTOMERS
HAZARDS
INDUSTRY
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC POLYMERS
ORGANIC SULFUR COMPOUNDS
POLYMERS
360601* - Other Materials- Preparation & Manufacture
360606 - Other Materials- Physical Properties- (1992-)
540220 - Environment
Terrestrial- Chemicals Monitoring & Transport- (1990-)