Applications of BBIT (n-Butyl-1,2-benzisothiazolin-3-one) in Industrial Fields

BBIT demonstrates extensive and specific applications across diverse industrial sectors, as detailed below:

1. Plastics and Rubber

1.1 PVC Products

• Applications: Profiles, flooring, wallpapers, shower curtains, etc.

• Function: Prevents microbial degradation and mold growth, extending product lifespan.

• Dosage: 0.5%–1% (achieving a mold resistance rating of 0).

• Advantages: Excellent compatibility with PVC resins, no impact on processing performance, and superior UV resistance for outdoor applications.

1.2 Polyurethane Foams

• Applications: Shoe soles, uppers, cushions, insulation materials, etc.

• Function: Inhibits fungal growth and prevents material spoilage.

• Dosage: 800–1,500 ppm.

• Advantages: High thermal stability (>260°C), ensuring no decomposition during processing.

1.3 Other Polymer Materials

• Applications: Silicone, polyolefins, polyesters, acrylic resins, etc.

• Function: Provides long-term antimicrobial protection and prevents material aging.

• Dosage: 0.05%–1.0% (adjusted based on material type).

• Advantages: Strong chemical stability, no reactivity with additives, and no impact on product performance.

2. Coatings and Adhesives

2.1 Industrial Anticorrosive Coatings

• Applications: Marine coatings, bridge coatings, tank coatings, etc.

• Function: Prevents microbial-induced corrosion (MIC) by sulfate-reducing bacteria (SRB), extending coating lifespan.

• Dosage: 0.3%–0.8%.

• Advantages: Synergistic effects with copper oxide (Cu₂O) and other antifouling agents for enhanced mold resistance.

2.2 Waterborne Coatings

• Applications: Architectural coatings, wood coatings, metal coatings, etc.

• Function: Inhibits mold and algae growth, preventing discoloration and peeling.

• Dosage: 0.1%–0.3%.

• Advantages: Low volatile organic compound (VOC) content, meeting environmental regulations.

2.3 Adhesives

• Applications: Automotive adhesives, packaging adhesives, construction adhesives, etc.

• Function: Prevents microbial degradation of adhesives, maintaining bond strength.

• Dosage: 0.1%–0.4%.

• Advantages: High-temperature resistance, suitable for complex processing environments.

3. Textiles and Leather

3.1 Fabric Coatings

• Applications: Skiwear, rainwear, tents, footwear materials, etc.

• Function: Imparts antimicrobial and antifungal properties to fabrics, enhancing product value.

• Dosage: 0.5%–1.0% (adjusted based on coating thickness).

• Advantages: Excellent wash durability, retaining antimicrobial efficacy after multiple laundering cycles.

3.2 Leather Products

• Applications: Shoe uppers, sofas, automotive seats, etc.

• Function: Prevents mold growth and material deterioration, extending service life.

• Dosage: 0.3%–0.8%.

• Advantages: Good compatibility with leather processing aids, maintaining tactile properties.

4. Metalworking Fluids

4.1 Fully Synthetic Cutting Fluids

• Applications: CNC machining, precision part manufacturing, etc.

• Function: Inhibits bacterial and fungal growth, preventing fluid spoilage.

• Dosage: 0.5%–1.2% in concentrate; 50–100 ppm in working fluid.

• Advantages: High-temperature and high-alkalinity resistance, suitable for harsh processing conditions.

4.2 Rolling Oils

• Applications: Cold-rolled and hot-rolled steel production.

• Function: Prevents microbial corrosion of rolls, improving product quality.

• Dosage: Combined with morpholine derivatives, maintaining 50–100 ppm in working fluid.

• Advantages: Excellent compatibility with emulsifiers and rust inhibitors, ensuring lubrication performance.

5. Other Specialized Applications

5.1 Wood Preservation

• Applications: Outdoor timber, pressure-treated wood, bamboo products, etc.

• Function: Prevents wood decay and discoloration, extending service life.

• Dosage: 0.05%–0.2% BBIT + 1% DDAC (dodecyldimethylammonium chloride).

• Advantages: Long-term mold resistance (up to 10+ years).

5.2 Oil and Gas Pipeline Corrosion Inhibitors

• Applications: Oilfield water injection, pipeline transportation, etc.

• Function: Inhibits microbial-induced corrosion (MIC), reducing pipeline perforation risks.

• Dosage: 0.01%–0.05%.

• Advantages: Synergistic effects with corrosion inhibitors for enhanced protection.

This translation provides a precise and detailed overview of BBIT's industrial applications, ensuring technical accuracy for an international audience in chemical and manufacturing sectors.