Alkylphenol Disulfide; PTBP-Formaldehyde Resins
CAS: 25085-50-1
Category: Phenolic antioxidant
| Purity | Industrial Grade ≥95%, Rubber Additive Grade ≥98%, High-Purity Grade ≥99% |
| Molecular Formula | C14H22S2 (Representative structure, polymeric mixture) |
| Molecular Weight | Approx. 270-350 (Average molecular weight varies d |
| Appearance | Amber to dark brown viscous liquid, resinous solid, or semi-solid material with a characteristic phenolic odor |
| Packaging | 25 kg plastic drums, 50 kg HDPE drums, 200 kg steel drums with inner coating, 1000 kg IBC tanks, or customized industrial packaging |
| Testing Indicators | Appearance — Visual inspection; Softening point — Ring and ball method (ASTM E28); Specific gravity — Density measurement (ASTM D792); Sulfur content — Elemental analysis or ICP method; Phenolic content — Acid-base titration or HPLC analysis; Active ingredient content — HPLC/GC analysis; Moisture content — Karl Fischer titration; Viscosity — Brookfield viscometer method; Thermal stability — Thermogravimetric analysis (TGA); Infrared identification — FTIR spectroscopy. |
| Storage Notes | Store in a cool, dry, and well-ventilated warehouse away from direct sunlight and heat sources. Keep containers tightly closed to prevent contamination and moisture absorption. Avoid contact with strong oxidizing agents, acids, and alkalis. Recommended storage temperature is below 30°C. |
| Lead Time | 10 days |
Alkylphenol disulfide and PTBP-formaldehyde resins are sulfur-containing phenolic resin additives mainly used as antioxidants, tackifiers, and reinforcing agents in rubber and polymer industries. They improve heat resistance, oxidation stability, aging resistance, and mechanical properties of elastomer materials. They are widely applied in tires, rubber compounds, adhesives, sealants, and specialty polymer formulations.