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Novel Ti 3 C 2 T x MXene/epoxy intumescent fire‐retardant coatings for ancient wooden architectures
Author(s) -
Huang Shan,
Wang Lei,
Li Yuchen,
Liang Chaobo,
Zhang Junliang
Publication year - 2021
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.50649
Subject(s) - fire retardant , intumescent , ammonium polyphosphate , materials science , coating , limiting oxygen index , epoxy , composite material , thermal stability , melamine , fire performance , chemical engineering , pyrolysis , fire resistance , char , engineering
Most of the ancient buildings are made of inflammable wooden structures, which have serious potential safety hazards. Applying fire‐retardant coating is one of the simplest and most effective means of fire prevention in ancient wooden buildings. In this work, we have demonstrated that the Ti 3 C 2 T x transition metal carbide/carbonitride (MXene) was applied as the synergetic agent, waterborne epoxy resin as the film‐forming agent, ammonium polyphosphate, dipentaerythritol, and melamine (P‐C‐N system) as the intumescent fire‐retardant system to prepare Ti 3 C 2 T x /epoxy intumescent fire‐retardant coating (TEIFC). The results showed that MXene has significantly improved the fire‐retardant performance of the coating. By incorporating 3 wt% Ti 3 C 2 T x (TEIFC‐3, with 62 wt% P‐C‐N system), the coating displayed UL‐94 V‐0 rating with the limiting oxygen index value of 38%. In addition, the combination of Ti 3 C 2 T x and P‐C‐N system enhanced the Shore hardness of the coating to 95 SHD (TEIFC‐3). Furthermore, TEIFC‐3 presented high thermal stability with the T HRI of 177.0°C and T dmax of 380.5°C. This work provides a novel strategy for the design and preparation of intumescent fire‐retardant coating, which will greatly broaden the industrial applications of MXene‐based polymer composites in the field of fire prevention of ancient buildings.