Yudu County, Ganzhou, Jiangxi, China sales3@liwei-chem.com 748718781@qq.com
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High-Efficiency Antioxidant

    • Product Name High-Efficiency Antioxidant
    • Chemical Name (IUPAC) Octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate
    • CAS No. 61788-44-1
    • Chemical Formula C15H12O3
    • Form/Physical State Liquid
    • Factory Site Yudu County, Ganzhou, Jiangxi, China
    • Price Inquiry sales3@liwei-chem.com
    • Manufacturer Anhui Liwei Chemical Co., Limited
    • CONTACT NOW
    Specifications

    HS Code

    771977

    Product Name High-Efficiency Antioxidant
    Form Powder
    Color White
    Solubility Insoluble in water
    Odor Odorless
    Application Polymer stabilization
    Molecular Weight 358.5 g/mol
    Melting Point 110°C
    Storage Temperature Store below 25°C
    Shelf Life 24 months
    Cas Number 31570-04-4

    As an accredited High-Efficiency Antioxidant factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing The High-Efficiency Antioxidant is packaged in a 25 kg white fiber drum with secure lid and product labeling for safety.
    Container Loading (20′ FCL) Container Loading (20′ FCL) for High-Efficiency Antioxidant: 12 metric tons packed in 480 drums, each 25 kg net weight, securely loaded.
    Shipping High-Efficiency Antioxidant is securely packaged in tightly sealed, corrosion-resistant containers. During shipping, it is protected from moisture, heat, and direct sunlight. All containers are clearly labeled and comply with international transport regulations. Proper documentation and handling instructions are provided to ensure safe transit and delivery to the destination.
    Storage The storage of **High-Efficiency Antioxidant** requires a cool, dry, and well-ventilated area away from direct sunlight, heat sources, and incompatible substances such as strong oxidizers or acids. The container should be tightly sealed to prevent moisture ingress and contamination. Store in original packaging, clearly labeled, and keep away from food, drink, and animal feed to ensure safety.
    Shelf Life Shelf life of High-Efficiency Antioxidant: 24 months in original, unopened containers, stored in cool, dry conditions away from sunlight.
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    Competitive High-Efficiency Antioxidant prices that fit your budget—flexible terms and customized quotes for every order.

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    Certification & Compliance
    More Introduction

    Introducing Our High-Efficiency Antioxidant: A Manufacturer’s Perspective

    The Role of Antioxidants in Polymer Processing

    Years of making specialty chemicals have taught us one truth—the finer the details in antioxidant design, the greater the difference in end-use performance. Our High-Efficiency Antioxidant grew from requests we heard at every customer meeting: stronger thermal stability, tighter color preservation, less risk during high-temperature processing, and less interference with additive packages. By taking practical lessons from common manufacturing lines and intensive R&D trials, we have built this product to center on the outcome our downstream partners expect: a reliable margin of protection for polymers under stress.

    Facility engineers speak of batch inconsistencies caused by outdated antioxidants, complaints of plate-out or yellowing at higher holds, or headaches in meeting both REACH and FDA standards without driving up cost. Those stories have guided the choices we made—innovations geared for real-world utility, not just to follow trends. We know every minute lost to discoloration or degraded mechanical strength chews away at output and credibility. The High-Efficiency Antioxidant tackles these concerns by bridging proven science with chemistry that scales to production realities.

    The Chemistry Behind Improved Stability

    Day after day we work in facilities that make polyethylene, polypropylene, ABS resins, and engineering plastics. In each process, thermal degradation can destroy output quality and shorten product lifespan. Our High-Efficiency Antioxidant, model HEA-701, builds on a multi-ring hindered phenol structure, grafted with alkyl and thioether groups. We chose this combination to snuff out free radicals quickly and recover from oxidation shutdowns faster than single-function analogs. Lab runs and industrial batches confirm a reduction in melt flow shifts—polypropylene retains more tensile strength after repeated extrusion, and masterbatch customers report cleaner product at higher throughput.

    Looking close at stabilization, the HEA-701 brings double duty: primary phenolic prevention and secondary thioether neutralization. Old-generation phenolic antioxidants have trouble with color drift, especially in clear and light-colored applications. By augmenting with synergistic thioethers, our formula mops up peroxides and slows yellowing even in transparent films or injection-molded parts. New blends like these can improve color index by up to 20%, validated by in-house colorimeter data and customer line audits.

    Why Physical Form Matters in Processing

    Operators often remind us that physical handling can make or break productivity, no matter how robust the chemistry. Simple logistic tweaks—dust levels, pouring flow, and static behavior—all affect workplace safety and batch consistency. Our antioxidant is engineered as a fine, free-flowing microgranule, not an agglomerating powder. This intentional choice eliminates caking, improves metering control, and cuts down cleaning time between formulation changes. Feedback from compounding lines points to smoother hopper feeding and less product loss. For our partners running automated lines twelve hours a day, that means fewer disruptions and wasted kilograms.

    Moisture absorption, static buildup, and storage stability all impact handling in factories without climate control. By spray-granulating with an anti-caking agent derived from food-safe silicates, we maintain low hygroscopicity and stable flow even in summer heat or warehouse humidity. Technicians see quicker blending, less dust in air samples, and containers without clumped residues.

    Compatibility with Co-Additives and Polymer Types

    Customers blend antioxidants with UV absorbers, process stabilizers, slip agents, and more. Not all antioxidants play well with every additive. Incompatibility can lead to haze, plate-out on extruder screws, or outright product failure. In our formulation work, we tested our High-Efficiency Antioxidant alongside HALS, benzotriazole UVs, antistatics, and anti-blocks, monitoring cloudiness and mechanical properties across a span of PE, PP, PS, and ABS systems. The chemistry avoids unwanted reactions, preserving optical clarity and aging resistance when loaded at standard rates.

    Newer flame retardant packages, especially brominated or phosphorous kinds, interact unpredictably with older antioxidants. Our team ran several batches—and had some failed attempts. After months of refining, our product stood up in fire-retardant polyolefins without breakdown or antagonism, keeping clarity and tensile strength intact. These are the lessons learned on the factory floor when blending isn’t theoretical, but part of daily production planning.

    Process Advantages in Industrial Use

    Plant managers notice the repeatability this antioxidant brings. In extrusion, HEA-701 maintains viscosity across longer residence times. In injection molding, less flashing and plate-out mean quicker mold cycles and better surface finishes. For film producers chasing tight haze and tensile specifications, the low volatility of the active ingredients keeps migration below LOI limits for both food packaging and medical grades.

    During pilot runs at high-shear machines, we record process logs and do line checks for unexpected color drift or filter blockages. Compounding partners using recycled feedstocks—where stabilizer residue and inherent variability are routine—find our antioxidant steadies performance with less need for line intervention. Instead of stopped machines or rejected batches, they see saw less downtime and steadier throughput.

    Optimized for Environmental and Regulatory Demands

    The past decade changed global manufacturing expectations. Low VOC, compliance with European REACH, US Food Contact, and China GB standards—these demands aren’t optional, they are a license to operate in modern plastics. We do not risk banned substances upstream, and our HEA-701 doesn’t include heavy metals, aromatic amines, or persistent organics. Third-party analysis confirmed our production does not generate dioxins, and trace impurity levels fit stringent export profiles. This means converters don’t lose time to regulatory audits or shipment delays.

    Recyclability dominates discussion in new product launches, especially in consumer packaging and automotive interiors. Our antioxidant holds up under repeated extrusion and melt cycles, as proven in simulations at our pilot plant and with feedback from PET bottle recyclers. Oxidation resistance persists through three extrusions, giving new life to recycled streams without additional additive spikes—a sustainability boost that isn’t just marketing copy, but a fact borne out in repeated supplier audits.

    Comparing with Current Market Solutions

    Technical teams often ask how our product stands apart from the market. Most legacy antioxidants rely on single-function hindered phenol backbones. They control free radicals, but often require higher dosages and struggle under strict compounding or engineering resin conditions. Some cheaper clones use basic thioethers or low-purity phenols, which can push plate-out or produce unwanted odors. Our approach combined high-purity, multi-ring core structures with targeted side chains to maximize melt-phase stability and reduce yellowing.

    Price is a reality no manufacturer ignores. Yet cost per unit tells only half the story. Our antioxidant’s stronger performance at lower loadings slashes the grams needed per ton of resin. In field trials with several partners, we saw inclusion rates fall by 15-25% versus standard products, and properties such as color retention and impact strength remained above minimum thresholds. For production planners squeezed by raw material price hikes, that translates into fewer stockouts and lower batch costs over the year.

    Product Model and Specifications

    The HEA-701 carries an active content exceeding 98.5%, and our regular QC runs cap impurities well below industry tolerance. Granule shape and flow were fine-tuned to suit dosing hoppers, with a bulk density that keys into established loading systems. Its melting point sits above 120°C, which fits most thermoplastic processing. We test each lot for loss on drying, purity via HPLC, and color index. On-site technical teams rely on these batch records when converting to new stabilizer systems, and our plant staff document each run for traceability.

    We support both standard pellet and microgranule forms. By keeping moisture pickup low and particle distribution tight, plant operators can swap out from other lines without recalibrating dosing settings—a practical requirement we resolved after working closely with line managers at each launch.

    Real-Life Outcomes in Polymer Production

    Blow-molders in packaging report fewer defects from yellowing and less downtime from filter plugging. Film extruders achieve clarity targets without hiking stabilizer load. Pipe manufacturers routinely pass pressure and UV exposure tests without drifting out of specification. Masterbatch producers running high-volume batches rely on the consistent color protection and streamlined handling.

    In shared production environments, where frequent line switchovers introduce risk, the product’s low dust and stable granule size simplify cleaning and cut waste. Staff breathe easier, and facilities achieve lower respirable dust readings during audits.

    Support and Troubleshooting from the Source

    We built our support approach around feedback from longtime partners. Our technical service team includes synthesis chemists, process engineers, and quality auditors who work directly for the manufacturing division. We do not farm out support to distant resellers who do not understand the original process. This gives our customers a direct line to those who designed and produced the product, not a detached after-sales agent. When a customer flags an issue—migration in a new bio-based resin, or a shift in odor during compounding—we run samples in our own test labs and return actionable advice grounded in years of experience.

    We routinely document field findings, update our internal production methods, and stay open to adjusting dosing or fine-tuning granule size based on real-world batch performance. All of these measures grow from a feedback loop that starts and ends in the hands of the people who operate and maintain manufacturing lines. Their challenges grow into new features and improvements, directly channeled into process adjustments and future R&D trials.

    Reducing Total Ownership Costs for Partners

    Switching stabilizer systems disrupts plant routines, and overcomplicated new chemistry often stalls due to cleanup, recalibration, or supply interruptions. We have worked to remove extra steps and hidden costs from our offering. Our High-Efficiency Antioxidant is available in bulk lots built around typical throughput rates for injection, extrusion, and compounding setups. Shipments align with major shipping lanes and warehouse constraints. This reduces lead times and lightens the burden on purchasing and inventory staff who deal with seasonal swings or regulatory peaks.

    Our contracts reflect real production needs: firm inventory, prompt shipment, and agile technical support informed by actual process experience. We do not pad supply with unnecessary intermediates or generic bulk that does not pass our quality thresholds. This keeps pricing fair and supply chains short, preserving both cost and consistency for formulators and converters moving millions of kilos a year.

    Lessons Learned from Decades of Manufacturing

    Everything in the product comes from a blend of research and shop floor encounters. Product managers and technicians who built their careers in compounding plants showed us what shortcuts do not work. Attempts to cut corners with substandard raw materials, off-the-shelf dust inhibitors, or recycled content with unchecked impurities consistently set entire product lines back. We rely on trusted raw material streams, double QC, and continuous operator training to avoid repeating these missteps.

    The culture in manufacturing fosters learning. Each marked drum or mislabeled tote holds a lesson. We carry those into design reviews, lunch-and-learns, and night-shift operations. By staying close to partners, requesting feedback, and being present in pilot stages, we have honed a product that reflects the tough demands of today’s processing lines—not abstract laboratory perfection, but robust, practical chemistry.

    Continuous Improvement and Vision

    Regulations, supply chain realities, and emerging polymer types set the stage for further change. Our investment in pilot-scale reactors and process analytics—FTIR, HPLC, TGA—guides ongoing upgrades and adaptations demanded by plant engineers and global buyers. Each time processing standards change, or downstream needs evolve, we revisit both synthesis and granulation methods to keep quality and compliance at the forefront.

    By tying together field reports and R&D milestones, we aim for more durable performance during both high-speed production and extended storage. Troubleshooting data from previous rollouts turn into process manuals that feed into both new-hire training and partner onboarding. The philosophy is simple: continuous improvement, informed by daily realities and a deep respect for the craft of chemical manufacturing.

    The Value of Manufacturer-Driven Innovation

    Antioxidants do more than check a test result or fill a line in a formulation sheet. They influence factory performance, worker health, regulatory standing, and a company’s reputation in the marketplace. We bring a product that works hard for its users and stands up to scrutiny from all sides—internal, customer, and regulatory alike. Years of interaction, problem-solving, and real-world troubleshooting helped shape every feature, composition tweak, and process parameter.

    In our view, High-Efficiency Antioxidant HEA-701 stands as a testament to what a manufacturer-driven approach can achieve: chemistry designed with a full view of plant realities, regulatory certainty, and the feedback loop that starts with hands-on work and ends in measurable results for partners down the line.