This Sodium Secondary Alkane Sulfonate solid flake CAS 68037‑49‑0 is an anionic multifunctional processing additive for HIPS, ABS and PVC thermoplastics. It integrates antistatic, internal lubricating, external lubricating and mold‑release functions within a single product. When compounded into resin matrix during melt processing, it reduces internal melt friction and decreases adhesion between molten plastic and metal mold surfaces. After cooling, active ingredients slowly migrate toward the ar

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Product DetailsThis anionic surfactant is supplied as uniform solid flake. Its amphiphilic molecular structure consists of long‑chain hydrophobic secondary alkane hydrocarbon segments and hydrophilic sodium sulfonate ionic groups. The dual‑character molecular structure enables both internal and external lubricating effects inside thermoplastic formulations.

At high‑temperature melt‑processing stage, the hydrophobic alkane segments slip between polymer molecular chains to lower internal melt viscosity, improving melt fluidity during extrusion and injection molding. Meanwhile, partial additive migrates toward the interface between molten resin and metallic mold cavity, forming a thin slippery boundary layer. This boundary layer reduces sticking of hot melt against mold surfaces and delivers effective mold‑release performance, which helps to shorten molding cycle time and lower the frequency of mold cleaning for HIPS, ABS and PVC production.

Once molded thermoplastic parts cool and fully solidify, the sulfonate‑containing molecules gradually migrate outwards to the finished‑product surface. The hydrophilic sodium sulfonate groups capture trace ambient moisture and form a continuous hydrophilic conductive film. This surface film dissipates accumulated static charges and suppresses static‑driven dust attraction on housings, sheets and profile products.

Since it belongs to anionic surfactant, direct mixing with cationic additives must be avoided, otherwise flocculation and precipitation will occur and processing performance will be lost. As a migratory antistatic additive, its antistatic performance is humidity‑dependent, and static‑dissipating capacity declines under extremely dry workshop conditions. Excessive dosage will cause obvious surface blooming, surface stickiness, and deteriorate subsequent painting, printing and adhesive bonding of HIPS, ABS and PVC parts. When applied to PVC, compatibility with heat stabilizer systems should be validated in advance to prevent premature discoloration during high‑temperature processing.

The typical recommended dosage ranges from 0.4 wt%‑1.7 wt% based on total resin formulation weight. Pre‑production laboratory trials are mandatory to evaluate melt fluidity, thermal stability, surface resistivity, blooming tendency, color holding property and post‑processing surface treatment performance before large‑scale manufacturing.

Store the solid flake antistatic additive in sealed moisture‑proof bags inside cool, dry and ventilated warehouse. Prevent prolonged high‑temperature storage which may trigger flake softening and caking. Avoid direct sunlight exposure. Reseal packaging immediately after opening to keep stable physical form and consistent processing performance.

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Sodium Secondary Alkane Sulfonate Antistatic Agent Solid Flake CAS 68037-49-0, Internal/External with Lubricant Release for HIPS ABS PVC

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Jishengya Technology

Shenzhen Jishengya Technology Co., Ltd. is located in Shenzhen, a special economic zone, and is a comprehensive technology enterprise integrating independent R&D, production and sales.