Applications of THI®S-1001 (Butyraldehyde–Aniline Condensate, also known as BBA / BAA) in the Solid Tyre Industry

THI®S-1001 is a high-efficiency liquid accelerator with the chemical name Butyraldehyde–Aniline Condensate, commonly referred to in the industry as BBA or BAA (Butyraldehyde–Aniline Adduct).
This compound belongs to the class of aldehyde–amine condensates, known for its high reactivity, excellent thermal stability, and superior dispersion performance.

In the field of rubber processing, especially in the production of solid tyres, THI®S-1001 (BBA / BAA) serves as an effective liquid vulcanization accelerator. It plays a key role in improving vulcanization efficiency, enhancing uniform crosslinking in thick rubber articles, and strengthening the overall mechanical properties of the finished products.

1. Background of the Solid Tyre Industry

Solid tyres are mainly used in forklifts, port machinery, construction vehicles, and logistics equipment, where they are required to endure heavy loads, continuous operation, and frequent mechanical stress.

Because solid tyres have thick rubber layers and long vulcanization cycles, their production process demands accelerators with excellent heat stability and controlled reactivity.
Ordinary accelerators often cause surface scorching or insufficient curing in the center, leading to quality issues.
THI®S-1001 (BBA / BAA) provides an ideal solution for such working conditions as a liquid accelerator that ensures balance between activity and process safety.

2. Chemical Characteristics and Performance Advantages of THI®S-1001 (BBA / BAA)

THI®S-1001 (Butyraldehyde–Aniline Condensate) is a brownish-yellow liquid formed by the condensation of butyraldehyde and aniline. Its main features include:

High Vulcanization Activity and Stable Reaction
BBA (or BAA) maintains a steady reaction rate even at elevated temperatures. It accelerates the vulcanization process while preventing scorching, making it suitable for thick products requiring prolonged, high-temperature curing.

Improved Crosslink Uniformity in Thick Products
It offers excellent penetration into the rubber matrix of solid tyres, reducing undercured or soft regions and enhancing the overall physical properties of the vulcanized compound.

Excellent Thermal Stability
When used in combination with common accelerators such as CBS and MBTS, THI®S-1001 maintains good processing safety under high-temperature conditions.

Strong Compatibility and Easy Dispersion
Its liquid form ensures high compatibility with various rubber systems, including NR, SBR, BR, EPDM, and NBR.
It disperses evenly during mixing, simplifies processing, and minimizes dust generation.

3. Typical Applications and Formulation References

Based on industrial experience with aldehyde–amine type accelerators, THI®S-1001 (BBA / BAA) is applicable in natural rubber (NR), styrene–butadiene rubber (SBR), or reclaimed rubber formulations.

(1) Forklift Solid Tyre Compounds

In NR/SBR-based formulations, adding approximately 0.5–1.0 phr of THI®S-1001 (BBA / BAA) can smooth the vulcanization curve, improve internal curing uniformity, and prevent overcure on the surface or undercure at the center.

(2) Tyres for Construction and Port Machinery

These tyres operate under high-temperature and heavy-load conditions. When THI®S-1001 (BBA / BAA) is used together with CBS, it enhances crosslink density, improves dynamic fatigue resistance, reduces heat buildup, and extends service life.

(3) Formulations Containing Reclaimed Rubber

In solid tyres containing reclaimed rubber, THI®S-1001 promotes vulcanization activity and strengthens the bonding between virgin and reclaimed materials, significantly improving compression set performance.

Note: Specific formulations and synergistic systems should be optimized based on actual production conditions, vulcanization temperature, and compound characteristics.

4. Application Results and Performance Benefits

Comparative studies conducted by solid tyre manufacturers have shown that compounds containing THI®S-1001 (BBA / BAA) exhibit the following improvements:

• Stable vulcanization curve and controllable scorch time
• More uniform and dense tyre structure with reduced bubbles and delamination
• Enhanced tensile strength, rebound resilience, and heat resistance of finished products
• Improved mold flow and processing efficiency

These improvements contribute to longer service life and higher product quality of tyres, while also reducing scrap rates and energy consumption—providing significant economic benefits.

5. Conclusion

THI®S-1001 (Butyraldehyde–Aniline Condensate, also known as BBA / BAA) combines high reactivity, excellent thermal stability, and strong system compatibility, demonstrating broad application potential in the solid tyre industry.

It effectively enhances vulcanization uniformity, bonding strength, and mechanical performance in thick rubber products.
As a liquid accelerator offering high efficiency, reliability, and economic value, THI®S-1001 provides an optimal solution for various rubber compound formulations used in solid tyre manufacturing.

Tags:THI®S-1001, Butyraldehyde–Aniline Condensate, BBA, BAA, Butyraldehyde Aniline Adduct, aldehyde–amine condensate, liquid accelerator, solid tyre accelerator, NR rubber compound, SBR rubber compound, BR rubber accelerator, reclaimed rubber, vulcanization accelerator, rubber industry additives, Honor & Honest, rubber chemicals supplier, tyre manufacturing materials, vulcanization efficiency enhancer, rubber compound uniformity, high-temperature stability, Vulkacit VP KA 9190