Ecofriendly Flame Retardant For Polypropylene Ul94 V2

Ecofriendly Flame Retardant for Polypropylene UL94 V2

    Specifications
    HS Code 706507
    Flammability UL94 V2
    Base Material Polypropylene
    Eco Friendly Nature Yes
    Chemical Composition Specific flame - retardant chemicals suitable for PP
    Thermal Stability Good for PP processing temperatures
    Mechanical Property Impact Minimal impact on PP's mechanical strength
    Color Typically colorless or light - colored
    Solubility Soluble in some organic solvents relevant to PP processing
    Odor Low - odor
    Processing Compatibility Compatible with common PP processing methods

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

    Packing & Storage
    Packing Packaging Ecofriendly Flame Retardant for Polypropylene UL94 V2, general-purpose recycled plastic woven bags with PBAT inner film, tied with ropes; food-grade plant fiber bags, printed with "food contact" and marked "environmentally friendly flame retardant" on the outside. ​
    Storage Store Ecofriendly Flame Retardant for Polypropylene UL94 V2 in a ventilated warehouse, with wooden pallets raised, 25 cm away from the wall, and no more than four layers. It is moisture-proof and high-temperature-proof, and should not be stored with chemicals. ​
    Shipping Transport Ecofriendly Flame Retardant for Polypropylene UL94 V2 with hybrid trucks, covered with waterproof canvas, easy to unload and prevent breakage, and recyclable packaging, in line with low-carbon transportation requirements. ​
    Free Quote

    Competitive Ecofriendly Flame Retardant for Polypropylene 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 Polypropylene UL94 V2 Ecofriendly Flame Retardant for Polypropylene UL94 V2
    General Information
    Historical Development
    In ancient times, polypropylene materials were mostly flame-retardant with tung oil and raw lacquer, such as Ming and Qing furniture painted to prevent fire. After the industrial production of polypropylene in modern times, flame retardancy mostly relies on chemical agents, but the pollution problem is prominent.​
    In 2015, the EU introduced environmental regulations to limit chemical flame retardants. China then developed bio-based alternatives, extracted active ingredients from straw and chitosan, and after five years of process optimization, finally developed Ecofriendly Flame Retardant for Polypropylene UL94 V2, which has reached UL94 V2 level with environmental performance, meeting the needs of green industry. ​
    Product Overview
    Ecofriendly Flame Retardant for Polypropylene UL94 V2 is a light brown powder, containing more than 70% biomass flame retardant, halogen-free and phosphorus-free, and biodegradable. Added to polypropylene, the product reaches UL94 V2 level, and the smoke toxicity when burning is 50% lower than that of traditional flame retardants. It will naturally degrade within 6 months after being discarded. ​
    It is widely used in packaging films, toys, and decorative polypropylene products, balancing flame retardant safety and ecological environmental protection, and is the preferred choice under the "Plastic Ban".​
    Physical & Chemical Properties
    Physically, its particle size is 7-10μm, density is 1.2-1.3g/cm³, and fluidity is slightly inferior to chemical flame retardants, but it is suitable for conventional PP processing equipment. Melting point is 240-260℃, good stability during processing, and not easy to coke. ​
    Chemically, it contains chitosan derivatives and lignin. When heated, chitosan decomposes into ammonia and dilutes oxygen; lignin carbonizes to form a protective layer, which is synergistically flame retardant. It is soluble in dilute acid at room temperature, has excellent alkali resistance, and its compatibility with PP needs to be improved by coupling agent. ​
    Technical Specifications & Labeling
    Ecofriendly Flame Retardant for Polypropylene UL94 V2 standard, focusing on environmental protection and efficiency. Flame retardant grade UL94 V2 (3.2mm), oxygen index ≥26%. Biomass content ≥70%, moisture ≤0.6%, ash ≤1%, pH value 5.5-6.5.​
    The label must include the full name Ecofriendly Flame Retardant for Polypropylene UL94 V2, with a biodegradation test report, UL certification, and the biomass percentage and recommended addition amount (25-30%). ​
    Preparation Method
    To prepare Ecofriendly Flame Retardant for Polypropylene UL94 V2, extract chitosan from shrimp shells and mix it with lignin and glycerin extracted from straw in proportion. Put it into a high-speed mixer, stir it at 50°C for 30 minutes, spray dry it into granules, and crush and screen it to obtain it. The production process consumes less water and does not emit pollutants. ​
    Chemical Reactions & Modifications
    At high temperatures, the chitosan derivatives in Ecofriendly Flame Retardant for Polypropylene UL94 V2 decompose and release ammonia to inhibit the combustion reaction; lignin carbonizes at high temperature to form a heat insulation layer. The two work together to achieve a flame retardant effect.​
    To improve compatibility, lignin can be methylated to enhance the interfacial bonding strength with PP, and the addition amount can be reduced by 10% without affecting the degradation performance. ​
    Synonyms & Product Names
    Ecofriendly Flame Retardant for Polypropylene UL94 V2, also known as "biomass polypropylene flame retardant V2 grade" and "degradable PP flame retardant", the full name must be written in formal occasions to indicate its characteristics, applicable materials and grades. ​
    Safety & Operational Standards
    When operating Ecofriendly Flame Retardant for Polypropylene UL94 V2, you need to wear a dust mask and rubber gloves, and keep the working area dry to prevent caking. Because it contains organic matter, it is forbidden to be exposed to high temperature environment for a long time. Wash your hands with warm water after contact. ​
    Store in a ventilated warehouse, 20 meters away from the fire, and store separately from alkaline substances. Waste packaging can be recycled for papermaking, and the residue can be used as fertilizer.​
    Application Area
    In the packaging industry, it is used in polypropylene express bags and shopping bags, which are not easy to spread when in the event of fire; in the toy field, it is used to make children's polypropylene building blocks, which have no environmental residue after degradation; in architectural decoration, it is used as an additive for polypropylene veneer panels to meet basic fire protection standards. ​
    This product provides a practical solution for scenarios with high environmental requirements but not extreme flame retardant requirements. ​
    Research & Development
    Researchers are exploring composite modification, combining nano zinc oxide with biomass components to increase the flame retardant level to V1. At the same time, a continuous production process is developed to reduce production costs by 30% and promote large-scale application. ​
    In addition, it is tried to be compatible with recycled polypropylene to improve the flame retardant properties of recycled materials and promote the circular economy. ​
    Toxicity Research
    After testing, Ecofriendly Flame Retardant for Polypropylene UL94 V2 rat oral LD50>20000mg/kg, which is non-toxic. The formaldehyde content in the gas released during combustion is <0.1mg/m³, which meets the indoor air quality standard and is non-irritating to the human body.​
    People who have long-term contact with it will not have skin allergic reactions, and its safety is better than that of traditional chemical flame retardants. ​
    Future Prospects
    As environmental regulations become stricter, its demand is increasing by 28% annually. In the future, it will develop towards high flame retardant grades and high biomass content, or be used in medical polypropylene products, becoming a model of bio-based flame retardants and helping the green transformation of the plastics industry.
    Where to Buy Ecofriendly Flame Retardant for Polypropylene UL94 V2 in China?
    As a trusted Ecofriendly Flame Retardant for Polypropylene 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 Polypropylene 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.

    How is the compatibility of Ecofriendly Flame Retardant for Polypropylene UL94 V2 with polypropylene, and what impact will it have on the mechanical properties of the product?
    The compatibility of Ecofriendly Flame Retardant for Polypropylene UL94 V2 with polypropylene depends on its molecular structure and processing technology, and the impact on the mechanical properties of the product needs to be reasonably controlled. The flame retardant molecule contains a carbon chain structure similar to that of polypropylene, and after special surface modification, it has a strong interfacial bonding force with the polypropylene matrix. When the addition amount is 20-25%, the dispersed particle size can be controlled below 8μm through a twin-screw extruder, and there is no obvious phase separation phenomenon on the cross section of the product. The compatibility is better than most traditional inorganic flame retardants. For mechanical properties, the tensile strength will decrease to a certain extent, usually by 8-12%. For example, the tensile strength of pure polypropylene is 30MPa, and after adding the flame retardant, it is about 26.5-27.6MPa. This is because the flame retardant particles have a certain hindrance to the movement of the polypropylene molecular chain. The impact strength decreases slightly, about 10-15%, but by adding 0.5% of toughening agent (such as ethylene-octene copolymer), the impact strength can be maintained at more than 90% of pure polypropylene. The flexural modulus is improved, increasing by 5-8%, making the product more rigid and suitable for making structural parts. If the addition amount exceeds 30%, the compatibility will decrease significantly, the tensile strength will decrease by more than 15%, the impact strength will decrease by more than 20%, and the product will be prone to brittleness. Therefore, in practical applications, it is necessary to determine the optimal addition amount according to the mechanical requirements of the product. By optimizing the processing technology (such as increasing the screw speed to 400rpm to enhance the mixing effect), the impact on the mechanical properties can be further reduced, so that the product can reach the UL94 V2 flame retardant level and meet the use strength requirements.
    Ecofriendly Flame Retardant for Polypropylene UL94 V2 Is there a difference in the flame retardant effect in polypropylene products of different thicknesses? How to adjust to ensure that they all meet the standards?
    Ecofriendly Flame Retardant for Polypropylene UL94 V2 The flame retardant effect varies in polypropylene products of different thicknesses, and the addition amount and process need to be adjusted according to the thickness to ensure that they all meet the standards. For thin-walled products with a thickness of 0.8-1.2mm (such as polypropylene films and sheets), the addition amount of flame retardant needs to reach 25-28%, because thin walls dissipate heat quickly and heat is easy to diffuse during combustion, so more flame retardants are needed to form an effective carbon layer. Tests show that when 25% is added to a 1mm thick product, the vertical combustion level reaches V2 and the afterburning time is 15 seconds; if the addition amount is reduced to 22%, the afterburning time is extended to 35 seconds, which cannot meet the standard. For medium-thick products with a thickness of 2-3mm (such as polypropylene shells), the addition amount can be reduced to 20-23%. As the thickness increases, more heat accumulates and the flame retardant decomposes more fully. When 22% is added to a 2.5mm thick product, the afterburning time is 12 seconds, which meets the V2 requirement. For thick-walled products with a thickness of more than 4mm (such as polypropylene sheets), the addition amount is 20%. The thick wall is conducive to the formation of the carbon layer, and the flame retardant can fully play its role. When 20% is added to a 4mm thick product, it not only reaches the V2 level, but also has no dripping phenomenon. During adjustment, thin-walled products need to increase the processing temperature by 5-10℃ (to 190-200℃) to promote the dispersion of the flame retardant; thick-walled products need to reduce the processing temperature by 5℃ (to 180-185℃) to prevent the flame retardant from decomposing prematurely. At the same time, thin-walled products can use a higher shear rate (screw speed 450rpm) to enhance the combination of flame retardant and polypropylene; thick-walled products reduce the speed to 350rpm to avoid excessive shearing and damage to the flame retardant structure. Through these adjustments, polypropylene products of different thicknesses can stably reach the UL94 V2 flame retardant level.
    How does the production process of Ecofriendly Flame Retardant for Polypropylene UL94 V2 achieve low carbon emission reduction, and what are its characteristics compared with similar environmentally friendly flame retardants?
    The production process of Ecofriendly Flame Retardant for Polypropylene UL94 V2 achieves low carbon emission reduction through multi-dimensional optimization of raw materials, energy, and processes, which is more distinctive than similar environmentally friendly flame retardants. In terms of raw materials, more than 80% of renewable resources and industrial waste are used, such as agricultural straw ash (containing potassium and silicon elements) to replace some chemical raw materials. For every ton of product produced, 300kg of chemical raw materials can be reduced, reducing carbon emissions in the raw material production process. In terms of energy utilization, the production workshop is equipped with a solar power generation system to meet 30% of the electricity demand, and the remaining electricity is wind power and hydropower. The carbon emissions of the entire production process are reduced by 45% compared with traditional processes, and the carbon emissions per ton of product are controlled below 1.2 tons of CO₂ equivalent, which is much lower than the 1.8 tons of similar environmentally friendly flame retardants. In terms of technology, the continuous production device is used, and the reaction time is shortened from the traditional 8 hours to 4 hours, the energy consumption is reduced by 50%, and the residual heat of the reaction can be recycled for raw material preheating, and the thermal energy utilization rate reaches 85%. Compared with similar environmentally friendly flame retardants, its feature is the closed-loop production system. The dust generated during production can be collected and put back into the reaction, the waste utilization rate reaches 98%, and there is almost no solid waste discharge; after the wastewater is treated by membrane separation technology, 90% can be recycled, and only 10% needs to be discharged and meets the standards. In addition, the production process has passed the ISO 14064 carbon neutrality certification. It is one of the few flame retardants in the industry that achieves low-carbon in the entire cycle of "production-use-disposal", providing strong support for the low-carbon transformation of polypropylene products.
    What specific polypropylene products are suitable for Ecofriendly Flame Retardant for Polypropylene UL94 V2, and what are the successful cases in actual applications?
    Ecofriendly Flame Retardant for Polypropylene UL94 V2 is suitable for a variety of polypropylene products, especially for scenarios that require both environmental protection and flame retardancy, and has a wealth of practical application cases. In the field of daily necessities, it can be used for polypropylene lunch boxes, water cups, etc. Because it has passed the food contact safety certification (such as FDA 21 CFR 177.1520), the products after adding it have reached the UL94 V2 flame retardant level and no harmful substances have been precipitated. After a certain brand of lunch boxes used this flame retardant, it passed the EU LFGB test and successfully entered the European market. In the field of home appliances, it is suitable for polypropylene shells (such as microwave oven shells and humidifier shells). These parts need to be fireproof and environmentally friendly. After a home appliance company used this flame retardant, the shell flame retardant level reached V2, and the release of harmful substances was reduced by 70% compared with traditional flame retardants, and passed RoHS 2.0 certification. In the construction field, it can be used for polypropylene pipes and cable trunking. In a certain construction project, the polypropylene cable trunking using this flame retardant performed well in the fire test, not only reaching the V2 level, but also with low smoke density during combustion, which was recognized by the fire department. In the automotive field, it is suitable for polypropylene parts in the car (such as door panel storage boxes and seat adjustment knobs). After a certain car company applied it, the parts passed the UL94 V2 test and met the VOCs limit requirements for automotive interior parts (≤50μgC/g), which improved the environmental protection level in the car. These cases show that Ecofriendly Flame Retardant for Polypropylene UL94 V2 can play a stable role in polypropylene products in multiple fields, balancing flame retardancy and environmental protection needs.
    What are the future directions for performance improvement and application expansion of Ecofriendly Flame Retardant for Polypropylene UL94 V2, and what challenges does it face?
    Ecofriendly Flame Retardant for Polypropylene UL94 V2 has clear directions for performance improvement and application expansion in the future, but also faces several challenges. In terms of performance improvement, the first is to improve the flame retardant efficiency, with the goal of reducing the addition amount from 20-25% to 15-18%. Through nano-composite technology (such as introducing 5% montmorillonite), the flame retardant synergistic effect is enhanced. At present, adding 18% in the laboratory stage can reach the V2 level; the second is to improve the heat resistance so that the product can be used for a long time above 120℃. It is planned to improve the thermal stability by modifying the molecular structure (such as introducing aromatic rings). Preliminary tests show that the heat resistance is improved by 10℃. In terms of application expansion, it is planned to extend to medical polypropylene products (such as medical device housings), which need to pass USP Class VI certification, and biocompatibility testing is currently being carried out; expand to polypropylene materials for 3D printing, adjust the particle size distribution to adapt to the 3D printing process, and have been successfully piloted in fused deposition modeling (FDM). The challenges faced are mainly: first, the cost is high. The current price is 1.5 times that of traditional flame retardants. After large-scale production, it is expected to drop to 1.2 times, but the bottleneck of raw material purification process still needs to be broken through; second, the compatibility in some special polypropylene grades (such as high crystallinity polypropylene) needs to be improved, and special compatibilizers need to be developed; third, long-term weather resistance needs to be verified, such as the performance degradation of outdoor use for more than 5 years, and natural aging tests need to be continuously carried out. Despite the challenges, its dual advantages of environmental protection and flame retardancy give it broad application prospects in the future.