New Regulations to Take Effect Soon, Changneng Technology's High Flame-Retardant Melamine Resin Meets the Challenges of Building Fire Protection
From 2025 to 2026, China's building fire protection field is ushering in a profound systematic transformation. National mandatory standards have comprehensively raised safety thresholds, special standards have put forward more stringent requirements for key materials, and local digital supervision has ensured the full-chain transparency and traceability of the compliance process. Against this background, the high flame-retardant melamine resin solution launched by Changneng Technology with forward-looking layout provides solid technical support for addressing this series of changes.
I. Tightening Policies: Building Fire Protection Enters an Era of High Standards
In recent years, a series of policies and standards related to building fire protection have been intensively issued at the national and local levels:
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National Standard Upgrade: The "Safety Technical Specification for Combustion Performance of Thermal Insulation Materials and Products for Buildings" (GB 46520-2025) was released in November 2025, setting higher requirements for the combustion performance of thermal insulation materials.
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Material Standard Strengthening: GB/T 30916-2014 "Combined Polyether for Sprayed Rigid Polyurethane Foam" has submitted a project application for conversion to a mandatory national standard, and the requirements for the flame-retardant performance of core raw materials will be more stringent in the future.
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Refined Local Supervision: For example, Jiangsu Provincial Construction Safety Management System has realized full-chain information supervision and traceability of building insulation materials.
These changes indicate that fire safety in the construction industry has gradually transformed from "advisory requirements" to "mandatory standards", putting higher requirements on the flame-retardant performance of materials.
II. Technical Cornerstone: A Proven High Flame-Retardant Solution
The independently developed CNP-8119 high flame-retardant melamine resin by Changneng Technology passed the new product identification organized by Jiangsu Provincial Department of Industry and Information Technology in December 2022. The identification committee believes that the overall technology of the product has reached the leading domestic level.
The core technological innovations include:
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Nitrogen-Phosphorus Synergistic Flame Retardancy: Phosphorus is introduced into the molecular structure through chemical bonds, forming a synergistic flame-retardant effect with nitrogen and carbon elements in melamine to achieve efficient intumescent flame retardancy.
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Reactive Flame Retardancy: The molecule contains reactive hydroxyl groups, making it a reactive flame retardant with long-lasting and non-migrating flame-retardant effect.
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Excellent Environmental Performance: The product is non-toxic and low-smoke, conforming to the development trend of environment-friendly flame retardants.
III. Experimental Verification: Excellent Flame-Retardant and Safety Performance
(Insert product verification video here)
The video includes two key experiments:
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Butane Torch Burning Experiment: After the foam was directly burned by flame for 2 minutes, only the surface contact area was carbonized, with the deepest carbonization thickness of about 2 millimeters, and the overall structure remained intact.
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Welding Spatter Burning Experiment: After the foam was burned by welding slag for 30 seconds, the flame extinguished quickly after the fire source was removed, leaving only local carbonization marks.
Experiments show that the material can effectively inhibit flame spread when encountering open fire, striving valuable time for personnel evacuation and fire fighting.
IV. Authoritative Data Support: Both Flame-Retardant and Smoke-Suppressing Performance
According to the paper research published by Sichuan University and other units at the "13th National Academic Conference on Fire Safety Materials", the rigid polyurethane foam (RPUF) prepared with CNP-8119 melamine polyol performed excellently:
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The limiting oxygen index increased by 4.6%, reaching a higher flame-retardant grade.
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The heat release rate and total heat release decreased by 43.5% and 57.4% respectively, effectively inhibiting the combustion process.
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The maximum smoke density value decreased by 43.4%, significantly improving the problem of smoke and toxic gas release during material combustion.
V. Environmental Practice: Striding Towards a Green and Low-Carbon Future
While pursuing excellent flame-retardant performance, Changneng Technology actively responds to environmental protection regulations and has adopted HFC-245fa foaming agent with zero ODP (Ozone Depletion Potential) to replace HCFC-141b, which is about to be fully phased out. The company continuously explores and develops more environmentally friendly green formulas, committed to finding a better balance between environmental protection and performance.
Conclusion
Driving a sustainable future with low-carbon new materials is the core value that Changneng Technology has always adhered to. By practicing the core values of "Innovation, Responsibility, Collaboration and Win-Win", we gather global partners to jointly build a green industrial ecology. Facing the higher requirements in the field of building fire protection, Changneng Technology will provide the industry with safer and more environmentally friendly choices with proven solutions.
