This high‑purity complex‑ester PVC transparent lubricant is a synthetic ester‑based processing lubricant designed for transparent and medical‑grade PVC formulations. Featuring low haze‑inducing properties, it offers coordinated internal and external lubricating effects during PVC plasticization. It improves melt fluidity, reduces shear‑generated overheating, upgrades surface gloss of finished parts and provides anti‑blocking effect for thin‑gauge flexible PVC products. Suitable for both rigid tr

Product Detail

Product Detail Page: The lubricant is produced via controlled esterification and subsequent high‑purity purification treatment of selected aliphatic carboxylic acids and alcohols. Multi‑stage filtration removes residual catalysts, unreacted starting substances and insoluble micro‑impurities. Every production batch is inspected for acid value, hydroxyl value, thermal stability, haze‑inducing tendency and heavy‑metal content to satisfy quality requirements of medical‑related PVC compounding.

Transparent and medical‑grade PVC imposes strict restrictions on processing auxiliaries. Ordinary low‑purity lubricants tend to migrate inside the PVC matrix after processing. Migration causes surface blooming, increased haze and loss of product clarity. For thin flexible PVC films and sheets, adjacent product surfaces easily stick together after cooling without effective anti‑blocking performance. In medical PVC applications, impure auxiliaries may introduce undesirable contaminants, which restrict the end‑use safety. Formulators also face difficulties when one lubricant grade must serve both rigid transparent hard articles and plasticized flexible medical parts.

When incorporated into PVC dry‑blend according to recommended addition range, the high‑purity complex ester disperses homogeneously throughout the resin matrix. The internal‑lubricating segment reduces intermolecular friction among PVC polymer chains during melting, lowering processing torque and restraining shear‑induced local over‑heating to suppress early thermal decomposition. The external‑lubricating fraction forms a thin slippery boundary layer between hot PVC melt and metal surfaces of extruder, injection barrel and die. It reduces metal adhesion and plate‑out risks, significantly improving surface gloss of finished components. After cooling, moderate surface migration of lubricant delivers anti‑blocking property for flexible thin‑wall PVC items. Thanks to refined molecular composition, the product avoids large‑scale blooming and maintains high optical transparency of rigid transparent PVC parts.

Precise dosage control is extremely important. Insufficient dosage results in poor melt flow, higher torque, discoloration risk and unsatisfactory surface gloss. Excessive loading will trigger excessive migration, leading to sticky surfaces, reduced hardness for rigid transparent PVC, and potential haze even for this high‑purity ester product. Laboratory formulation trials are strongly recommended before mass compounding. This lubricant can be matched with calcium‑zinc thermal stabilizer systems for medical‑grade transparent PVC.

For compounding operations, add this liquid lubricant during the hot high‑speed mixing cycle of PVC dry‑blend. Ensure sufficient stirring time to achieve uniform distribution with resin, stabilizers and other additives prior to the cooling mixing phase.

Prevent foreign particle contamination. Long‑term high‑temperature storage accelerates ester aging and raises acid value, which will negatively affect lubricating performance and PVC thermal stability.

Major application fields: transparent rigid PVC sheet and profile processing; lubricating and anti‑blocking aid for flexible medical‑grade PVC film, tubing and disposable components; multi‑purpose ester lubricant for transparent rigid and plasticized flexible PVC compounds.

Store the product in tightly‑sealed original drums within 10‑35℃. Keep away from direct sunlight and heat sources.

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PVC Transparent Lubricant High-Purity Complex Ester, Gloss Anti-Blocking Medical-Grade PVC for Rigid & Flexible

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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.