Effect of Phosphorus‐Containing Silane Coupling Agents Modified Ammonium Polyphosphate on the Flame Retardancy and Mechanical Properties of Epoxy Resin

Journal of Applied Polymer Science, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 30, 2025

ABSTRACT Two phosphorus‐containing silane coupling agents (PSCAs), KH550‐P and KH560‐P, are successfully prepared by reacting 10‐hydroxy‐9,10‐dihydro‐9‐oxa‐10‐phosphorus‐10‐oxide (DOPOOH) with (3‐aminopropyl) triethoxysilane (KH550) 3‐glycidyloxypropyltrimethoxysilane (KH560), respectively. These two PSCAs used as the surface modification of ammonium polyphosphate (APP). The flame retardancy mechanical properties epoxy resin (EP) PSCA‐modified APP investigated. When weight ratio to is 18:2 addition amount APPs, APP‐KH550‐P APP‐KH560‐P , in EP reaches 8%, resulting flame‐retardant composite materials, EP/APP‐KH550‐P EP/APP‐KH560‐P exhibit good a V‐0 rating vertical combustion test (UL‐94). limiting oxygen index values both higher than 30%. peak heat release rates decrease 13.8% 28.5%, respectively, compared containing 8% (EP/APP). Both KH560‐P demonstrate similar performance enhancing APP. added EP, found be those EP/APP. Conversely, tensile strength impact increase 23.8% 74.3%, shows significantly better EP.

Language: Английский

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Novel Si-MXene/PAPP Hybrid System for High-Performance Flame-Retardant Polypropylene Composites

Polymer Degradation and Stability, Journal Year: 2025, Volume and Issue: unknown, P. 111376 - 111376

Published: April 1, 2025

Language: Английский

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Phosphorus-nitrogen co-modification of floral hydrotalcite synergized with zinc hydroxystannate for enhancing fire resistance of waterborne epoxy coatings

Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2024, Volume and Issue: 701, P. 134840 - 134840

Published: July 24, 2024

Language: Английский

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Tannic acid coated ammonium polyphosphate: For flame retardant and UV resistant of polypropylene

Polymer Degradation and Stability, Journal Year: 2024, Volume and Issue: 229, P. 110956 - 110956

Published: Aug. 14, 2024

Language: Английский

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Sustainable, Scalable, and Highly Flame-Retardant Cellulose-Containing Fabrics

ACS Sustainable Chemistry & Engineering, Journal Year: 2024, Volume and Issue: 13(1), P. 396 - 405

Published: Dec. 26, 2024

Polyester-cotton fabrics (PCFs) combine the advantages of polyester and cotton, offering durability, moisture absorption, breathability, making them widely used in workwear, home decoration, other applications. However, flammability PCFs limits their use certain areas. In this work, we develop a two-step flame-retardant modification process through Michael addition prepolymerization reactions. Using simple chemical modification, produce with excellent properties. The modified achieved limiting oxygen index 32.7, demonstrating good flame resistance. During combustion, can generate large amount noncombustible gases phosphorus-containing substances, forming uniform carbon layer on fabric's surface, thereby exhibiting superior property. developed work uses water as solvent throughout, it environmentally friendly providing new approach for functional cellulose-containing fabrics.

Language: Английский

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Hierarchical curing mechanism in epoxy/bismaleimide composites: Enhancing mechanical properties without compromising thermal stabilities

European Polymer Journal, Journal Year: 2024, Volume and Issue: unknown, P. 113604 - 113604

Published: Nov. 1, 2024

Language: Английский

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