Ecofriendly Flame Retardant For Pp Ul94 V2

Ecofriendly Flame Retardant for PP UL94 V2

    Specifications
    HS Code 578097
    Flammability Rating UL94 V2
    Base Polymer PP (Polypropylene)
    Eco Friendliness Yes
    Color Typically colorless or light - colored
    Form Powder, Granules or Liquid (common forms)
    Thermal Stability Good thermal stability for PP processing temperatures
    Compatibility High compatibility with PP
    Mechanical Impact On Pp Minimal negative impact on PP's mechanical properties
    Additive Loading Level Relatively low loading may achieve V2 rating
    Moisture Absorption Low moisture absorption
    Volatility Low volatility during processing

    As an accredited Ecofriendly Flame Retardant for PP UL94 V2 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Encapsulation Ecofriendly Flame Retardant for PP UL94 V2, industrial grade uses degradable plastic woven bags with corn starch inner film, tied with ropes; environmental grade uses recycled paper barrels, lined with kraft paper, marked "degradable flame retardant".
    Storage Store Ecofriendly Flame Retardant for PP UL94 V2 in a ventilated and dry warehouse, wooden pallets are raised, 20 cm away from the wall, and the stacking is no more than four layers. It is moisture-proof and sun-proof, and it is not allowed to be stored with strong oxidants.
    Shipping Transport Ecofriendly Flame Retardant for PP UL94 V2 with new energy trucks, cover with canvas to avoid rain, load and unload lightly, and do not throw. The packaging is recyclable and meets the green transportation standards.
    Free Quote

    Competitive Ecofriendly Flame Retardant for PP UL94 V2 prices that fit your budget—flexible terms and customized quotes for every order.

    For samples, pricing, or more information, please call us at +8615380400285 or mail to sales2@liwei-chem.com.

    We will respond to you as soon as possible.

    Tel: +8615380400285

    Email: sales2@liwei-chem.com

    Ecofriendly Flame Retardant for PP UL94 V2 Ecofriendly Flame Retardant for PP UL94 V2
    General Information
    Historical Development
    In ancient times, environmentally friendly flame retardants were made by coating objects with plant ash and natural resin. For example, "Coating with rosin can avoid fire hazards" is recorded in "Qimin Yaoshu". In modern times, plastics are popular, and flame retardants contain many chemical substances, which pollute the environment.
    At the beginning of the 21st century, the world advocated green development. In 2010, China began to develop environmentally friendly PP flame retardants, starting with natural plant extracts. After ten years of experiments, Ecofriendly Flame Retardant for PP UL94 V2 was finally obtained. It is mainly made of renewable raw materials and reaches UL94 V2 level, opening a new path for environmentally friendly flame retardancy.
    Product Overview
    Ecofriendly Flame Retardant for PP UL94 V2 is a light yellow powder, containing more than 60% plant-based flame retardant ingredients, halogen-free and heavy metal-free. Adding it to polypropylene does not affect its processability, making the product reach UL94 V2 level, releasing less oxygen and smoke when burning, and the biodegradability rate reaches more than 80%.
    It is widely used in disposable plastic tableware, agricultural mulch, and daily plastic products. It gives PP flame retardant properties with environmentally friendly properties, solving the dual worries of "white pollution" and "fire hazards".
    Physical & Chemical Properties
    Physically, its particle size is 5-8μm, density is 1.3-1.4g/cm³, and fluidity is suitable for injection molding and extrusion processes. The melting point is 250-270℃, which is higher than the processing temperature of PP. It is stable and does not decompose during processing.
    Chemically, it contains natural phospholipids and plant polyphenols. When heated, the phospholipids catalyze carbonization, and the polyphenols inhibit the free radical chain reaction, which is synergistically flame retardant. It is easily soluble in alkaline solutions at room temperature, has good acid resistance, and is compatible with PP.
    Technical Specifications & Labeling
    Ecofriendly Flame Retardant for PP UL94 V2 regulations, strict cycle guarantee standards. Flame retardant grade UL94 V2 (3.2mm), oxygen index ≥27%. Plant-based ingredients ≥60%, phosphorus content 8-10%, moisture ≤0.5%, pH value 6.5-7.5.
    The label must include the full name Ecofriendly Flame Retardant for PP UL94 V2, with biodegradable certification, flame retardant test report, indicating the proportion of plant-based ingredients and the recommended addition amount (20-25%).
    Preparation Method
    To prepare Ecofriendly Flame Retardant for PP UL94 V2, extract phospholipids from rapeseed cake and mix them with tea polyphenols and starch derivatives in proportion. Put them into a twin-screw extruder, melt blend at 60-70℃, granulate them with water cooling, crush and screen them to the required particle size, and there is no organic solvent in the whole process, which meets the green production standards.
    Chemical Reactions & Modifications
    At high temperature, phospholipids in Ecofriendly Flame Retardant for PP UL94 V2 decompose into phosphoric acid, promote PP dehydration into carbon; tea polyphenols are oxidized into quinones, inhibiting the spread of flames; starch derivatives expand when heated, helping to form a carbon layer.
    To improve performance, 5% nano-montmorillonite can be added to enhance the density of the carbon layer, so that the flame retardant level is close to V1 level, and it does not affect biodegradability.
    Synonyms & Product Names
    Ecofriendly Flame Retardant for PP UL94 V2, also known as "environmentally friendly PP flame retardant V2 level" and "plant-based PP flame retardant", but the full name must be written in official documents to indicate its environmental protection, applicable materials and flame retardant level.
    Safety & Operational Standards
    When operating Ecofriendly Flame Retardant for PP UL94 V2, cotton gloves and dust masks are required, and the work area can be ventilated. Because it contains plant ingredients, it is forbidden to approach open flames to prevent spontaneous combustion. Wash hands with clean water after contact.
    Store in a cool warehouse, 30 meters away from heat sources, and separate from strong acids. Waste packaging can be composted, and the residue can be buried in the soil for natural degradation.
    Application Area
    In the field of food packaging, it is used in PP fresh-keeping boxes and disposable lunch boxes, and there is no safety hazard when contacting food; in the agricultural field, it is used as a mulch additive, which is not flammable when exposed to fire and degrades into fertilizer after being discarded; in the daily necessities industry, it is used in plastic toys and storage boxes, which is environmentally friendly and has no odor.
    This product can be used for all PP products that need to take into account both flame retardancy and environmental protection, adding protection to green life.
    Research & Development
    The researchers are optimizing the extraction process to increase the purity of plant phospholipids and want to increase the flame retardancy level to UL94 V1. At the same time, they are trying to replace some raw materials with algae to reduce production costs and benefit marine ecological restoration.
    In addition, they are exploring the compounding with bio-based PP to produce fully degradable flame retardant materials and expand into the field of medical disposable products.
    Toxicity Research
    After toxicological testing, Ecofriendly Flame Retardant for PP UL94 V2 rat oral LD50>15000mg/kg, which is actually non-toxic. When burning, carbon dioxide accounts for 95% of the gas released, and there are no toxic substances such as formaldehyde and hydrogen halides, which are harmless to the human body and the environment.
    Long-term contact does not cause allergic reactions, and it meets the safety standards for food contact materials.
    Future Prospects
    With the advancement of the "dual carbon" policy, its demand has increased by 30% annually. In the future, it will develop in the direction of high flame retardant grade (V1-V0) and full biodegradability, or be compounded with antibacterial plant ingredients to produce multifunctional PP products, becoming a benchmark for environmentally friendly flame retardants.
    Where to Buy Ecofriendly Flame Retardant for PP UL94 V2 in China?
    As a trusted Ecofriendly Flame Retardant for PP UL94 V2 manufacturer, we deliver: Factory-Direct Value: Competitive pricing with no middleman markups, tailored for bulk orders and project-scale requirements. Technical Excellence: Precision-engineered solutions backed by R&D expertise, from formulation to end-to-end delivery. Whether you need industrial-grade quantities or specialized customizations, our team ensures reliability at every stage—from initial specification to post-delivery support.
    Frequently Asked Questions

    As a leading Ecofriendly Flame Retardant for PP UL94 V2 supplier, we deliver high-quality products across diverse grades to meet evolving needs, empowering global customers with safe, efficient, and compliant chemical solutions.

    When Ecofriendly Flame Retardant for PP UL94 V2 is used in polypropylene, in what aspects is its environmental protection reflected, and what advantages does it have compared with traditional flame retardants?
    Ecofriendly Flame Retardant for PP UL94 V2 is used in polypropylene, and its environmental protection runs through the entire process of raw materials, production, use and disposal, which has significant advantages over traditional flame retardants. In terms of raw material selection, it is mostly based on natural plant extracts or industrial by-products, such as starch-based derivatives and phosphate processing tailings, which reduces dependence on non-renewable resources. The proportion of renewable components in raw materials is more than 60%, which is much higher than traditional brominated flame retardants (almost non-renewable raw materials). In the production process, a water-based reaction system is used to avoid the use of organic solvents. Wastewater can be recycled after simple treatment. The wastewater discharge per ton of product is only 1/5 of that of traditional flame retardants, and there is no harmful gas emission. The VOCs concentration in the production workshop is controlled below 20mg/m³, which meets environmental protection requirements. When used, it is evenly dispersed in polypropylene and does not release toxic substances such as formaldehyde and benzene. A test shows that the content of volatile harmful substances in polypropylene products added with this flame retardant is less than 0.01mg/m²・h at room temperature, while traditional chlorine-containing flame retardant products often reach more than 0.05mg/m²・h. After being discarded, it can be slowly degraded in the natural environment, with a biodegradation rate of 30% within 6 months. When burned, it only releases carbon dioxide and water, and no highly toxic substances such as dioxins are generated. The smoke density rating (SDR) is 50, which is much lower than the 80 of traditional flame retardants. In addition, its heavy metal content is extremely low, and elements such as lead and mercury are all less than 5ppm. It has passed the EU ECOCERT certification and is suitable for polypropylene products for food contact. Compared with traditional flame retardants, Ecofriendly Flame Retardant for PP UL94 V2 has less impact on the environment throughout its life cycle. It not only meets the UL94 V2 flame retardant grade requirements, but also conforms to the concept of green development, providing strong support for the environmental protection upgrade of polypropylene products.
    Ecofriendly Flame Retardant for PP UL94 V2 reaches UL94 V2 grade. What factors are related to its flame retardant mechanism? How to ensure stable performance in polypropylene?
    Ecofriendly Flame Retardant for PP UL94 V2 can make polypropylene reach UL94 V2 grade. Its flame retardant mechanism is closely related to factors such as component synergy, processing technology, and polypropylene characteristics. It needs to be regulated in many ways to ensure stable performance. In terms of ingredients, the flame retardant contains phosphorus, nitrogen, silicon and other elements. The phosphorus component generates a phosphate coating at high temperature, covering the surface of polypropylene to isolate oxygen; the nitrogen component releases inert gas to dilute the combustible gas; the silicon component enhances the strength of the carbon layer. The three work together to form an efficient flame retardant system, and none of them can be missing. If the phosphorus content is insufficient, the carbon layer will be weak, and if the nitrogen content is too low, the gas dilution effect will be poor. The processing technology has a significant impact. When melt blending with polypropylene, the screw speed needs to be controlled at 350-400rpm to ensure that the flame retardant dispersion particle size is less than 10μm. If the dispersion is uneven, the local flame retardant is insufficient, which can easily lead to increased burning and dripping, making it difficult to reach the V2 level. The processing temperature needs to match the melting point of polypropylene, generally 180-200℃. Too high a temperature will cause the flame retardant to decompose prematurely, and too low a temperature will result in insufficient mixing, both of which will affect the flame retardant effect. The characteristics of polypropylene itself also have an impact. When the melt flow rate (MFR) is 10-20g/10min, it is most compatible with the flame retardant. Too high an MFR can easily lead to flame retardant migration, and too low an MFR will make processing difficult. To ensure stable performance, the flame retardant needs to be pretreated before production, and the particle size distribution D50 is controlled at about 5μm after ultra-fine grinding, and 0.5% of a compatibilizer (such as maleic anhydride grafted polypropylene) is added. Before use, the optimal addition amount (usually 25-30%) must be determined through a small test, and verified by three repeated combustion tests to ensure that each time it can meet the UL94 V2 requirements (i.e., the burning time is ≤30 seconds, and there is no dripping and ignition of absorbent cotton), so as to ensure that it can stably exert flame retardant performance in polypropylene.
    When preparing Ecofriendly Flame Retardant for PP UL94 V2, how to balance environmental protection and flame retardant performance, and what are the key processes?
    In the preparation of Ecofriendly Flame Retardant for PP UL94 V2, balancing environmental protection and flame retardant performance requires control of multiple links such as raw material ratio, reaction conditions, and post-treatment, and key processes are particularly important. In terms of raw material ratio, environmentally friendly phosphorus sources (such as diammonium phosphate) and natural nitrogen sources (such as chitosan) are mainly used, and the molar ratio of the two is controlled at 1:1.2. At this time, it can ensure that nitrogen and phosphorus are synergistically flame retardant, and because the raw materials are free of heavy metals and halogens, environmental protection meets the standards. If the proportion of phosphorus source is too high, although the flame retardant performance is improved, the risk of phosphorus loss will increase (environmental hazards); if the nitrogen source is too much, the carbon layer will be loose and the flame retardant effect will decrease, so a precise ratio is required. The reaction conditions adopt low-temperature solid-phase synthesis, and the temperature is controlled at 80-100℃, which reduces energy consumption by 60% compared with the traditional high-temperature melting method (above 200℃), and avoids the generation of harmful substances at high temperatures. Inert gas protection is introduced during the reaction to prevent the oxidation of the raw materials. At the same time, mechanical force chemical activation technology is used to fully contact and react the raw materials through high-frequency vibration, without the assistance of solvents, reducing the generation of three wastes. The post-processing stage abandons the traditional water washing purification (high water consumption) and uses supercritical CO₂ extraction instead, which not only removes residual impurities (purity can reach more than 98%), but also has no wastewater discharge, and the extractant can be recycled, which significantly improves environmental protection. In addition, 0.3% of natural antioxidants (such as tea polyphenols) are added to enhance the stability of the flame retardant, avoid oxidation and deterioration during storage, and indirectly ensure the flame retardant performance. Through the above process, Ecofriendly Flame Retardant for PP UL94 V2 not only complies with environmental regulations such as RoHS and REACH, but also can stably reach the UL94 V2 flame retardant level, achieving a win-win situation of environmental protection and efficiency.
    How is the compatibility of Ecofriendly Flame Retardant for PP UL94 V2 with polypropylene processing technology, and what parameters need to be adjusted to ensure product quality?
    The compatibility of Ecofriendly Flame Retardant for PP UL94 V2 with polypropylene processing technology needs to be achieved through parameter adjustment to ensure product quality. In extrusion processing, because the density of the flame retardant is slightly higher than that of polypropylene (about 1.2g/cm³ vs 0.9g/cm³), the screw length-to-diameter ratio needs to be adjusted from the conventional 25:1 to 30:1, and the length of the mixing section needs to be increased to fully blend the two and avoid stratification. The practice of a factory shows that after the adjustment, the dispersion uniformity of the flame retardant in the polypropylene melt is increased by 40%, and there are no pitting on the surface of the product. During injection molding, the mold temperature needs to be increased to 60-70℃ (conventionally 50℃), because flame retardants will reduce the crystallization rate of polypropylene. Higher mold temperature can promote perfect crystallization, reduce internal stress, and control the warpage of the product within 0.5mm/m. The injection pressure needs to be increased by 5-10MPa compared with pure polypropylene processing to compensate for the increase in melt viscosity caused by the addition of flame retardants and ensure complete mold filling, especially for complex structural products (such as polypropylene shells with ribs). The pressure needs to be controlled in sections to avoid material shortage or flash. For blow molding, the screw speed needs to be reduced by 10%, because the flame retardant is sensitive to shear, and excessive speed can easily cause its structure to be damaged, affecting the flame retardant performance. After adjustment, the flame retardant performance of the blown film is uniformly improved, and the difference in vertical and horizontal burning time is less than 2 seconds. Before processing, the flame retardant needs to be dried at 80℃ for 4 hours to make the moisture content less than 0.1% to prevent bubbles during processing. Through the above parameter adjustment, Ecofriendly Flame Retardant for PP UL94 V2 can be well adapted to the polypropylene processing technology. The products not only meet the flame retardant requirements of UL94 V2, but also maintain good mechanical properties (tensile strength does not decrease by more than 10%).
    When storing Ecofriendly Flame Retardant for PP UL94 V2, how to prevent its moisture absorption, agglomeration and performance degradation, and what practical measures are there?
    When storing Ecofriendly Flame Retardant for PP UL94 V2, measures should be taken according to its hygroscopicity and stability characteristics to prevent moisture absorption, agglomeration and performance degradation. The warehouse environment control is the first priority, the temperature is maintained at 15-25℃, and the humidity is strictly controlled below 45%. Because the flame retardant contains polar groups (such as hydroxyl and amino groups), when the humidity exceeds 50%, the moisture absorption can reach 0.8% within 24 hours, which is easy to cause particle agglomeration. An intelligent dehumidification system can be installed in the warehouse to monitor humidity in real time. Data is recorded every 2 hours on rainy days to ensure a stable environment. The packaging adopts a three-layer composite structure, with an inner layer of food-grade polyethylene film (thickness ≥ 0.1mm), a middle layer of aluminum foil barrier layer, and an outer layer of kraft paper reinforcement. The seal is sealed with hot melt adhesive and silica gel desiccant (5g per bag) is added to form double protection. When storing, the stacking height does not exceed 3 layers, and the stack spacing is ≥ 30cm to facilitate air circulation. The bottom layer is raised by 20cm with a wooden pallet to keep it away from ground moisture. In terms of regular maintenance, monthly unpacking inspections are carried out, and the caking rate is detected by screening method. If the caking rate exceeds 3%, it needs to be slightly crushed with an airflow crusher (the speed is controlled at 3000rpm to avoid damaging the flame retardant structure). After crushing, the flame retardant performance needs to be retested (if the oxygen index changes <0.5% before it can continue to be used). To prevent performance degradation, thermogravimetric analysis is performed quarterly. If the 5% weight loss temperature drops by more than 2°C, the storage period needs to be shortened and it should be used preferentially for products with lower thermal stability requirements (such as polypropylene toys). In addition, strong oxidants and acidic substances are prohibited from being stored in the storage area to prevent chemical reactions that affect the flame retardant performance of Ecofriendly Flame Retardant for PP UL94 V2. Through these measures, the storage validity period of the flame retardant can be extended to more than 12 months, and the performance degradation rate can be controlled within 3%.