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Send EmailTertbutyl Benzothiazole Sulfenamide, Tert-butyl Benzothiazole Sulfenamide, TBBS, TBBS-80, 95-31-8
🧪 TBBS (N-tert-butyl-2-benzothiazole sulfenamide)
CAS No: 95-31-8
Chemical Formula: C₁₁H₁₄N₂S₂
Appearance: Light yellow to gray powder
Packaging Type: Typically 25 kg bags or granules
🧪 TBBS – Synonyms and Trade Names
| 📌 Descriptor Type | 🧾 Alternative Names |
|---|---|
| Chemical Names | N-tert-butyl-2-benzothiazole sulfenamide |
| 2-Benzothiazolesulfenamide, N-tert-butyl | |
| Tert-butyl benzothiazole sulfenamide | |
| N-tert-butylbenzothiazole-2-sulfenamide | |
| Abbreviations | TBBS |
| TBBS-80 (for masterbatch form) | |
| Trade Names | Vulkacit TBBS |
| Rhenogran TBBS | |
| Santocure TBBS | |
| Altax TBBS | |
| Accelerator NS (commonly used in Chinese sources) | |
| CAS Number | 95-31-8 ✅ (Verified) |
⚙️ Technical Specifications
| Property | Value / Description |
|---|---|
| Active Content (%) | ~100 |
| Melting Point | 104–110 °C |
| Nitrosamine Risk | Moderate |
| Dispersion | Medium |
| Toxicity | Low |
🏭 Application Areas
| Sector | Description |
|---|---|
| Automotive Tires | Offers delayed vulcanization, high processability, and excellent mechanical strength. |
| Synthetic Rubber (SBR, NBR, EPDM) | Preferred in high-performance systems. |
| Technical Rubber | Ideal for gaskets, hoses, vibration parts requiring durability. |
| General Industrial Rubber | Provides high tensile strength and abrasion resistance. |
✅ Advantages
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⏳ Delayed vulcanization: Extends mixing time, improves processability.
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🛡️ High mechanical strength: Excellent resistance to abrasion, tearing, and tension.
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🧼 Low toxicity: Ensures safer working conditions.
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🔁 Broad applicability: Widely used in technical and automotive rubber.
⚠️ Precautions
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Not suitable for latex systems.
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Moderate nitrosamine risk — alternatives may be needed for sensitive applications.
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Requires high activation temperature — process temperature must be controlled.
🧩 TBBS Sectoral Suitability Table
| 🏭 Sector | ✅ TBBS Suitability | 📌 Notes |
|---|---|---|
| 🔘 Natural Rubber | ✅ Medium | Usable as a secondary accelerator. |
| 🧪 Synthetic Rubber (SBR, NBR) | ✅ High | Delivers strong performance. |
| 🧼 Latex Systems | ❌ Not suitable | Delayed vulcanization is incompatible. |
| 🚗 Automotive Tires | ✅ High | Provides superior mechanical properties. |
| 🧴 Medical Products | ❌ Not suitable | Not preferred due to nitrosamine risk. |
| 🧱 General Industrial Rubber | ✅ High | Excellent abrasion and tear resistance. |
| 🧯 Technical Rubber | ✅ High | Ideal for gaskets, hoses, vibration parts. |
🧩 Sectoral Suitability Matrix
(✅: Suitable, ⚠️: Limited, ❌: Not Suitable)
| 🏭 Application Area / Product → | ZDMC | ZDEC | ZDBC | ZMBT | TBBS |
|---|---|---|---|---|---|
| 🔘 Natural Rubber | ✅ | ✅ | ✅ | ✅ | ✅ |
| 🧪 Synthetic Rubber (SBR, NBR, EPDM) | ✅ | ✅ | ✅ | ✅ | ✅ |
| 🧼 Latex Systems | ✅ | ✅ | ⚠️ | ✅ | ❌ |
| 🚗 Automotive Tires | ❌ | ❌ | ⚠️ | ✅ | ✅ |
| 🧴 Medical Products | ✅ | ✅ | ⚠️ | ✅ | ❌ |
| 🧯 Technical Rubber (Gaskets, Hoses) | ✅ | ⚠️ | ✅ | ✅ | ✅ |
| 🌾 Agrochemicals | ✅ | ⚠️ | ❌ | ⚠️ | ❌ |
⚙️ Technical Property Comparison
| Property | ZDMC | ZDEC | ZDBC | ZMBT | TBBS |
|---|---|---|---|---|---|
| CAS No | 137-30-4 | 14324-55-1 | 136-23-2 | 155-04-4 | 95-31-8 |
| Nitrosamine Risk | Low | Low | Low | Moderate | Moderate |
| Curing Speed | Fast | Ultra-fast | Medium | Medium | Delayed |
| Dispersion | High (PD) | High (PD) | Medium | Medium | Medium |
| Toxicity | Low | Low | Low | Low | Low |
| Melting Point | >180 °C | >180 °C | ~200 °C | ~250 °C | 104–110 °C |
✅ Key Advantages Summary
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ZDMC: Excellent for low-temperature curing, nitrosamine-free, ideal for medical and latex applications.
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ZDEC: Ultra-fast accelerator, highly effective in dipping systems.
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ZDBC: Good aging resistance, low toxicity, moderate curing.
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ZMBT: Broad curing range, versatile in technical rubber.
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TBBS: Delayed action, high mechanical strength, essential in automotive and industrial rubber.
