Polyamide Nucleating Release Agent Montan Calcium Salt CAS 8002‑53‑7 is refined metallic salt derived from montanic acid of lignite montan wax. This multifunctional additive integrates nucleating effect and mold‑release lubricating performance for polyamide systems. During PA injection molding, it acts as heterogeneous nucleation sites to accelerate polymer crystallization rate. Faster crystallization shortens cooling time inside the mold and reduces total molding cycle. Meanwhile, it provides i

Product Detail

Product Detail Page: Montan Calcium Salt is manufactured via lignite montan wax purification, saponification and calcium‑salt precipitation reaction, followed by filtration, drying and fine milling into free‑flowing powder. Each production batch is inspected for dropping point, metal‑salt content, thermal weight‑loss, nucleating efficiency and demolding performance to guarantee consistent processing performance for polyamide compounding and injection molding.

Polyamide injection molding presents notable technical challenges. Polyamide is a semi‑crystalline engineering plastic. Slow crystallization rate during cooling extends mold residence time, which leads to long injection molding cycle and restricts production output. Thin‑wall and glass‑fiber‑filled PA components frequently stick to mold surfaces after cooling; forced ejection may cause cracking, whitening and deformation of finished molded articles. Conventional separate nucleating agents and external release lubricants require complicated formula matching. Ordinary lubricants also risk blooming at elevated PA processing temperatures, impairing surface quality of nylon finished parts.

When homogeneously dispersed within polyamide compound at recommended dosage during compounding, fine montan calcium‑salt powder is evenly distributed in the PA resin matrix. Under molding cooling conditions, the additive provides abundant heterogeneous nucleation sites, which effectively speeds‑up polyamide crystal growth. Accelerated crystallization allows the molded PA component to reach sufficient rigidity in a shorter cooling interval, directly shortening the overall injection molding cycle and raising machine output. Simultaneously, partial additive migrates to the interface between hot polyamide melt and metallic mold surface, building a thin low‑friction boundary layer. This boundary layer reduces resin‑mold adhesion, facilitates smooth ejection of intricate and glass‑fiber‑reinforced PA molded parts, and minimizes the incidence of surface scratch and product deformation. Owing to its montan metal‑salt molecular structure, it demonstrates good thermal stability under high PA processing temperature with low volatility and reduced blooming tendency.

Strict dosage control is required for polyamide formulation. Under‑dosage delivers insufficient nucleating efficiency and weak mold‑release performance; cycle‑time reduction is limited and mold‑sticking defects remain. Excessive loading will overspeed crystallization, potentially inducing internal stress within molded polyamide parts, and may cause surface deposits on mold surfaces during long‑run production. Formulation trials with injection‑molding testing are strongly recommended before formal mass compounding. This montan calcium salt can be used together with heat stabilizers, antioxidants and glass‑fiber reinforcements for polyamide systems.

For compounding operations, the powdered montan calcium‑salt nucleating release agent is premixed with PA resin, stabilizers and reinforcing fillers in high‑speed mixer before twin‑screw extrusion pelletizing or direct injection molding.

Prevent powder from moisture absorption and foreign particle contamination. Humid storage environment may trigger slight caking of fine powder.

Major application fields: nucleating and cycle‑shortening processing additive for unfilled PA6 and PA66 injection‑molded components; combined nucleating‑release auxiliary for glass‑fiber‑reinforced polyamide engineering parts; high‑temperature‑stable multifunctional additive for polyamide compounding.

Store the product in tightly‑sealed original bags within 15‑30℃, keep dry and avoid direct sunlight.

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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.