Synthesis of an Intumescent Flame Retardant and its Application to Fireproof Coatings of Steel Structures

Xiang Zhang; Fan Zhang; Chao Lu Yin

doi:10.4028/www.scientific.net/AMR.568.52

Paper Titles

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Analysis of Two Cross Arm of Reactive Powder Concrete Pole Design with Structure Materials in Civil Engineering
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Research on Material Properties and Heat Treatment of Clamping Blocks
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The Current Situation and Analyze of Huizhou Traditional Architectural Components and Materials to Repair Alternative Techniques
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Synthesis of an Intumescent Flame Retardant and its Application to Fireproof Coatings of Steel Structures
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Contrastive Analysis on Limitation Span between Suspension Bridge Using Steel and CFRP Cable
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The Research about Plastic Cement Playground and Constructed Materials
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Simulation and Analysis on Supporting System of Composite Soil Nailing Technology in the Process of Digging
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Exploration of the Strategies in Civil Engineering to the Safety Evaluation and Reinforcement Technique of Wood Structure of Ancient Architecture in Huizhou
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Synthesis of an Intumescent Flame Retardant and its Application to Fireproof Coatings of Steel Structures

Abstract:

A phosphoru-nitrogen intumescent flame retardant (SCF101) consisting of acid source, carbon source and gas source, was synthesized by phosphoric acid, phosphorus pentoxide, pentaerythritol and melamine (MA). TGA and SEM results showed that decomposition temperature range of SCF101 was from 100°C to 700°C, and the residual char yield ratio was 30-40%, and the char layer was uniform and compact. As a substitute of traditional flame retardant, namely, ammonium polyphosphate (APP), melamine (MA) and pentaerythritol (PER), the SCF101 used in fireproof coatings of steel structure can improve residual char yield about 10%. The gasoline blowtorch experiments showed that the foam expansion of the coating containing SCF101 was higher, and char layer structure was compact and continuous, while the coating containing APP, MA and PER can not foam uniformly and the foam was cracked under the action of flame.