Introduction
Shandong Changsheng New Flame Retardant Co., Ltd. (山东昶盛阻燃新材料股份有限公司) is a Chinese manufacturer of halogen-free flame-retardant materials, headquartered at Antou Industrial Park in Qihe County, Dezhou, Shandong Province. Established in 2013, the company combines research and development, engineering, manufacturing, and domestic and international trade.
Changsheng’s principal product family is based on ammonium polyphosphate (APP), including standard and modified grades used in plastics, coatings, rubber, textiles, wood products, and agricultural formulations. Its portfolio also includes melamine cyanurate, charring agents, and coated or encapsulated flame-retardant additives. The company’s position reflects the wider plastics industry’s movement toward halogen-free systems that can improve fire performance while addressing regulatory and environmental requirements associated with certain halogenated additives.
The company reports production capacity of approximately 10,500 tonnes per year, with products supplied to Chinese customers and exported to Europe, South America, the Middle East, and other markets. Its commercial significance lies primarily in supplying additive materials to compounders, coating formulators, plastics processors, and other downstream manufacturers rather than producing commodity polymers or finished plastic goods.
History and Development
Changsheng was founded in 2013 as a specialist producer of flame-retardant materials. Its development can be outlined through several milestones:
- 2013: Establishment of the company in Shandong and commencement of activities focused on halogen-free flame-retardant products.
- Expansion of manufacturing infrastructure: Public company profiles describe production facilities in Qihe County, Dezhou, and Lanling County, Linyi, creating a broader manufacturing base within Shandong Province.
- Development of modified APP grades: The company expanded beyond conventional ammonium polyphosphate to include phase-modified, silane-coated, and melamine-coated products intended to improve compatibility, dispersion, moisture resistance, or performance in particular formulations.
- International market development: Changsheng established export activities serving customers in Europe, the Americas, Asia, the Middle East, and other regions.
The company’s evolution follows a common pattern in the specialty-chemicals sector: initial concentration on a core inorganic additive, followed by product modification and application-specific grades for plastics, coatings, textiles, and other markets.
Business Operations and Segments
Changsheng operates across several interconnected areas:
- Flame-retardant manufacturing: Production of APP-based and other halogen-free additives.
- Product modification: Surface treatment, coating, encapsulation, and formulation of additives for different polymer and coating systems.
- Technical development: Application-oriented research and engineering support for customers.
- Domestic and export trade: Distribution to Chinese users and overseas markets.
- Agricultural chemicals: Production and supply of ammonium polyphosphate grades used in fertilizer applications.
The company has been described as operating an integrated structure covering research and development, engineering development, production, and commercial distribution. A European coatings exhibition profile listed approximately 65 employees, while other commercial profiles have reported different workforce figures, reflecting variation in reporting dates and company scope.
Products and Technologies
Ammonium polyphosphate
APP is the central product category in Changsheng’s portfolio. It is an inorganic phosphorus–nitrogen compound widely used in intumescent flame-retardant systems. Under heat, APP can promote the formation of a protective char layer, particularly when combined with a carbon source and a blowing or nitrogen-containing component.
Reported grades include:
- APP Phase I: A conventional form used in selected flame-retardant and fertilizer applications.
- APP Phase II: A higher-polymerization form commonly selected for improved water resistance and use in polymer and coating systems.
- APP 011: A commercial APP grade identified with the formula \((\mathrm{NH4PO3})_n\), where the reported polymerization range is below 20.
- APP 451: A Phase II APP product modified through silane micro-encapsulation and supplied as a fine white powder.
- Melamine-coated APP: A surface-modified grade designed for improved compatibility and performance in selected formulations.
- Liquid APP: A liquid formulation intended for applications requiring a pumpable or readily dispersible flame-retardant component.
The technical value of APP depends on factors such as particle size, polymerization degree, moisture resistance, thermal stability, surface treatment, dispersion, and interaction with the host resin. In plastics compounding, these characteristics influence mechanical properties, processing behavior, additive loading, and final fire-test performance.
Other flame-retardant additives
The company also lists:
- Melamine cyanurate (MCA), commonly used in polyamide and other engineering-plastic systems.
- Pentaerythritol and related charring agents used as carbon sources in intumescent formulations.
- Wood and textile flame retardants.
- Flame-retardant additives for rubber and coatings.
- Agricultural-grade ammonium polyphosphate.
Processing and formulation capabilities
Changsheng’s product range indicates capabilities in several additive-processing operations:
- Particle production and classification.
- Surface coating and encapsulation.
- Formulation of powder and liquid grades.
- Adaptation of products to customer specifications.
- Preparation of materials for plastics, rubber, coatings, textiles, and fertilizer applications.
In polymer applications, flame retardants may be incorporated by melt compounding, masterbatch production, coating, impregnation, or reactive and synergistic formulation. The appropriate technology depends on the resin, processing temperature, required fire classification, loading limit, and desired balance between flame performance and mechanical properties.
Applications and End Markets
Changsheng’s products serve six broad application sectors identified in company and industry profiles:
| Sector | Typical role of the materials |
|---|---|
| Plastics | Flame-retardant additive for thermoplastics, compounds, and polymer formulations |
| Fire-protective coatings | Intumescent or phosphorus-based component in protective coating systems |
| Rubber | Additive for improving resistance to ignition and flame propagation |
| Textiles | Treatment component for fabrics, nonwoven materials, and technical textiles |
| Wood and building materials | Flame-retardant treatment for construction-related substrates |
| Agriculture | Phosphorus–nitrogen fertilizer and agricultural ammonium polyphosphate |
In plastics, APP-based systems are particularly relevant to polypropylene, polyamide, polyethylene-based compounds, thermoset formulations, and selected polymer blends. Their use is often associated with electrical and electronic components, appliances, construction products, transportation materials, and industrial parts where fire behavior is regulated.
The company’s materials may also be used in coatings for steel, wood, plastics, and other substrates. In these applications, intumescent systems can expand under heat and form an insulating char layer, helping delay substrate heating and structural or functional failure.
Global Presence and Market Position
Changsheng is based in Shandong, an important Chinese chemical-manufacturing region with access to domestic industrial customers, logistics infrastructure, and export routes. Its listed manufacturing locations include Qihe County near Dezhou and Lanling County in Linyi.
The company reports sales to:
- China;
- Europe;
- South America;
- The Middle East;
- Other Asian and international markets.
Its market position is that of a specialized additive producer serving multiple downstream industries. Rather than competing as a polymer resin producer, Changsheng participates in the specialty-materials segment, where customers typically evaluate suppliers on product consistency, regulatory documentation, technical support, customization, supply reliability, and cost.
The company’s competitive environment includes Chinese producers of APP, melamine-based additives, phosphorus flame retardants, and intumescent-system components, as well as multinational specialty-chemical companies. Demand is influenced by construction activity, electrical and electronic manufacturing, automotive production, appliance markets, textile treatment, and fire-safety regulation.
Research and Development
Changsheng’s reported operating structure includes research and development and engineering development. Its product portfolio suggests an emphasis on application-specific modification rather than reliance solely on unmodified commodity APP.
Key development directions include:
- Phase-controlled APP production.
- Silane and melamine surface modification.
- Micro-encapsulation.
- Improved compatibility with polymer matrices.
- Powder and liquid formulations.
- Flame-retardant systems for coatings, textiles, rubber, and agricultural applications.
- Customer-specific product specifications.
The company’s website also describes research involving APP-based intumescent systems, including combinations with chitosan and surface-layer assembly techniques for polyester fabrics. Such work reflects the broader movement toward multifunctional flame-retardant systems that combine fire protection with improved adhesion, durability, dispersion, or reduced additive migration.
Sustainability and Environmental Considerations
Changsheng emphasizes halogen-free flame retardant products and reports compliance with regulatory frameworks including RoHS, REACH, and K-REACH. Halogen-free formulations are used in many applications to address customer specifications, evolving chemical regulations, smoke and corrosion considerations, and product stewardship objectives.
The environmental profile of a flame retardant depends on more than whether it contains halogens. Relevant factors include:
- Raw-material sourcing and manufacturing emissions.
- Persistence and mobility in the environment.
- Toxicological characteristics.
- Use concentration and potential migration.
- End-of-life behavior.
- Fire performance and the resulting safety benefits.
APP and other inorganic phosphorus–nitrogen additives can support halogen-free formulations, but their suitability must still be evaluated through application-specific hazard assessment, regulatory review, and life-cycle considerations. Product compliance therefore remains dependent on the formulation, jurisdiction, and intended use rather than on a single general classification.
Financial Performance and Economic Impact
Publicly available commercial profiles identify Changsheng as a privately operated manufacturer and trading company, but they do not provide a sufficiently consistent basis for presenting audited revenue, profit, or market-share figures. The company’s reported production capability of approximately 10,500 tonnes annually provides an indication of its manufacturing scale.
Its economic role extends beyond direct production through:
- Supply of specialty additives to plastics and coatings manufacturers.
- Support for domestic and export supply chains.
- Employment in chemical production, technical services, quality control, and trade.
- Contribution to the availability of halogen-free formulation materials for industrial users.
Demand for its products is tied to industrial production and regulatory requirements. Growth opportunities are associated with electrical and electronic materials, construction products, transportation components, renewable-energy equipment, and other applications requiring controlled fire behavior.
Quality Management and Certifications
Changsheng states that its products comply with RoHS, REACH, K-REACH, and other regulatory requirements. These frameworks address chemical restrictions, registration, evaluation, authorization, and market access in specific jurisdictions.
The company’s listed product information also identifies technical specifications such as:
- Chemical formula;
- CAS number;
- Product grade;
- Particle or physical form;
- Applicable industry standard;
- Intended application.
For industrial flame-retardant additives, quality assurance generally involves control of phosphorus and nitrogen content, moisture, particle-size distribution, thermal stability, coating uniformity, bulk density, and dispersion behavior. Consistent testing is essential because variations in additive characteristics can affect processing, mechanical properties, color, and fire-test results.
Innovations and Future Outlook
Changsheng’s future development is likely to be shaped by several structural trends in the plastics and specialty-chemicals industries:
- Expansion of halogen-free flame-retardant systems.
- Increasing fire-safety requirements for electrical, electronic, construction, and transportation products.
- Demand for lower-loading additives that preserve mechanical and processing properties.
- Greater use of surface-treated and encapsulated particles.
- Development of formulations compatible with recycled polymers.
- Increased regulatory scrutiny of chemical substances and end-of-life impacts.
- Growth in export markets requiring detailed documentation and conformity assessment.
The company’s APP-centered portfolio provides a platform for further development of synergistic systems, coated additives, masterbatch-compatible grades, and application-specific products. Its longer-term competitiveness will depend on maintaining consistent quality, improving technical support, meeting evolving regulatory requirements, and adapting products to recycled and high-performance polymer systems.
Summary
Shandong Changsheng New Flame Retardant Co., Ltd. is a Shandong-based specialty-chemical manufacturer established in 2013 and focused primarily on halogen-free flame-retardant materials. Its principal products are ammonium polyphosphate grades, including phase-modified, silane-coated, melamine-coated, and liquid forms, supplemented by melamine cyanurate, charring agents, and other additives.
The company serves plastics, coatings, rubber, textiles, wood products, building materials, and agriculture. With reported annual capacity of approximately 10,500 tonnes and export activity extending across Europe, South America, the Middle East, and other regions, Changsheng occupies a specialized position within the global flame-retardant supply chain. Its development is closely connected to the plastics industry’s requirements for fire safety, halogen-free formulations, regulatory compliance, additive compatibility, and increasingly application-specific material performance.
References
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CPS+ eMarketplace. (n.d.). SHANDONG CHANGSHENG NEW FLAME RETARDANT CO., LTDSHANDONG CHANGSHENG NEW FLAME RETARDANT CO., LTD. CPS+ eMarketplace. https://www.chinaplasonline.com/eMarketplace/ExhibitorInfo?CompId=1039571Link