Application of drag-reducing polymers in forest firefighting: effects on wood properties and mechanism study DOI
Jie Wang, Junqing Meng,

Chunhui Lyu

et al.

Surfaces and Interfaces, Journal Year: 2024, Volume and Issue: 53, P. 105082 - 105082

Published: Sept. 8, 2024

Language: Английский

Efficient Removal of Chlorpyrifos from Water Using Acrylic Resin P(MA-SMA-St): Adsorption Behavior, Kinetics, Thermodynamics, Molecular Simulations, and DFT Calculations DOI
Wenxin Dai, Pan Luo, Bo Xu

et al.

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 115924 - 115924

Published: Feb. 1, 2025

Language: Английский

Citations

1
Preparation of a Flame-Retardant Curing Agent Based on Phytic Acid–Melamine Ion Crosslinking and Its Application in Wood Coatings DOI Open Access

Wei An,

Shunxiang Wang, Yongjin Zou

et al.

Polymers, Journal Year: 2024, Volume and Issue: 16(11), P. 1557 - 1557

Published: May 31, 2024

To broaden the applications of wood, it is necessary to prepare flame-retardant coatings that can protect wood substrates during combustion. In this study, a bio-based, intumescent, phytic acid–melamine polyelectrolyte (PM) was prepared using phosphorus-rich biomass acid and nitrogen-rich melamine as raw materials through an ion crosslinking reaction. Subsequently, series were by optimizing structure urea–formaldehyde resin with addition melamine, sodium lignosulfonate, PM curing agent. Woods coated PM-containing displayed significantly improved performances in comparison uncoated woods. For PM-cured woods, measured values total heat release smoke production 91.51% 57.80% lower, respectively, compared those wood. Furthermore, fire growth index decreased 97.32%, indicating lower hazard. This increase flame retardancy suppression performance due dense expanded carbon layer formed combustion coating, which isolates oxygen heat. addition, mechanical properties cured are similar commercial agent, NH4Cl. coating also stain study proves excellent flame-retarding effect ammonium phytate provides new approach for application bio-based retardants coatings.

Language: Английский

Citations

4
Effect of polymers and surfactants on wood fire suppression: Experimental and simulation analysis of wettability, flowability and thermal stability DOI
Jie Wang, Junqing Meng,

Yingpei Lyu

et al.

Polymer Degradation and Stability, Journal Year: 2025, Volume and Issue: 233, P. 111180 - 111180

Published: Jan. 7, 2025

Language: Английский

Citations

0
Сравнительная оценка огнетушащей способности средств дегазации и дезактивации DOI

И.В. Мещеряков,

Agniya Konstantinova

Сибирский пожарно-спасательный вестник., Journal Year: 2025, Volume and Issue: 1(36), P. 166 - 174

Published: April 4, 2025

В статье рассмотрен вопрос возможности компенсации нехватки сил и средств штатных подразделений пожарной охраны МЧС России за счёт использования имеющихся ресурсов гражданской обороны России. силу объективных причин (удалённость пожарно-спасательных частей, неудовлетворительное состояние дорожного покрытия, высокий износ техники) время прибытия первых к месту пожара в сельской местности зачастую превышает нормативное. Использование дегазации дезактивации, стоящих на вооружении России, качестве огнетушащих веществ позволит повысить тактические прибывших начальной стадии развития пожара. Настоящая работа посвящена исследованию пожарно-технических характеристик водных растворов дезактивации. Дана сравнительная оценка проникающей способности воды гипохлорита кальция, хлористой извести, лимонной кислоты, сульфонола хлорамина. Определена статистическая значимость полученных результатов с помощью F-критерия Фишера. Установлено, что водные растворы натрия при концентрациях действующих 1 0,3%масс соответственно обладают большей способностью по сравнению водой. Проведены натурные огневые испытания тушению экспериментального очага класса А растворами хлорамина, кальция. водный раствор кальция подаче тонкораспыленной струей обладает огнетушащей способностью, превышающей такую способность 16%. Водные хлорамина аналогичных условиях подачи приблизительно 2 раза выше, чем у воды. The article considers the possibility of compensating for shortage forces and resources regular fire protection units Russian Emergencies Ministry by using available civil defense Ministry. Due to objective reasons (remoteness rescue units, unsatisfactory condition road surface, high wear equipment), time arrival first site a in rural areas often exceeds standard. use degassing decontamination equipment, which are service with Ministry, as extinguishing agents will increase tactical capabilities arriving at initial stage development. This work is devoted study fire-technical characteristics aqueous solutions agents. A comparative assessment penetrating ability water calcium hypochlorite, lime chloride, citric acid, sulfonol chloramine given. statistical significance obtained results determined Fisher's F-criterion. It established that sodium hypochlorite concentrations active substances 0.3% weight, respectively, have greater compared water. Full-scale tests were conducted extinguish an experimental Class chloramine, hypochlorite. was found solution when supplied finely atomized stream, has fire-extinguishing capacity Aqueous sulfonol, under similar supply conditions, approximately times higher than

Language: Русский

Citations

0
Experimental study on fire extinguishing efficiency of polymer hydrogel fire extinguishing agent in pine-fir mixed coniferous forest fires DOI Creative Commons
Zhangyin Dai, Congbao Huang,

Youcheng Chen

et al.

Case Studies in Thermal Engineering, Journal Year: 2024, Volume and Issue: 64, P. 105413 - 105413

Published: Nov. 5, 2024

Language: Английский

Citations

3
Application of drag-reducing polymers in forest firefighting: effects on wood properties and mechanism study DOI
Jie Wang, Junqing Meng,

Chunhui Lyu

et al.

Surfaces and Interfaces, Journal Year: 2024, Volume and Issue: 53, P. 105082 - 105082

Published: Sept. 8, 2024

Language: Английский

Citations

2