Study on inhibition of titanium powder explosion by melamine polyphosphate/iron modified carbon nanotube composite powder

IF 4.2 2区工程技术 Q2 ENGINEERING, CHEMICAL

Advanced Powder Technology Pub Date : 2025-02-25 DOI:10.1016/j.apt.2025.104833

Yujian Zhu , Xiangbao Meng , Xiaozhen Yu , Zhao Qin , Jihe Chen , Jianxu Ding

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引用次数: 0

Abstract

In order to effectively inhibit the explosion of titanium powder, MPP-Fe@CNT mesoporous composite powder was prepared using carbon nanotubes as the carrier. Dust explosion experiment system and Hartmann experiment system were used to test the inhibition effect of MPP-Fe@CNT powder on the explosion pressure and explosion flame of titanium powder, and the explosion products were analyzed by FTIR and XPS experimental methods. The results show that when the proportion of MPP-Fe@CNT reaches 50 %, the maximum explosion pressure of titanium powder decreases from 0.5476 MPa to 0.2421 MPa, and the flame propagation distance decreases to 227.39 mm, which indicates that MPP-Fe@CNT has obvious inhibition effect on the explosion of titanium powder. MPP-Fe@CNT powder absorbs a lot of heat in the thermal decomposition process, and the released gas dilutes the concentration of oxygen. Chemical reactions of phosphorus-containing compounds consume free radicals and inhibit the explosion of titanium powder. Under the catalysis of iron, the polymer generated by decomposition and phosphorus-containing substances quickly form a dense carbonized film on the surface of titanium powder, blocking heat and oxygen, further limiting the explosive reaction, and having a good physicochemical synergistic inhibition effect to achieve a good effect of inhibiting the explosion of titanium powder.

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来源期刊

Advanced Powder Technology 工程技术-工程：化工

CiteScore

9.50

自引率

7.70%

发文量

424

审稿时长

55 days

期刊介绍： The aim of Advanced Powder Technology is to meet the demand for an international journal that integrates all aspects of science and technology research on powder and particulate materials. The journal fulfills this purpose by publishing original research papers, rapid communications, reviews, and translated articles by prominent researchers worldwide. The editorial work of Advanced Powder Technology, which was founded as the International Journal of the Society of Powder Technology, Japan, is now shared by distinguished board members, who operate in a unique framework designed to respond to the increasing global demand for articles on not only powder and particles, but also on various materials produced from them. Advanced Powder Technology covers various areas, but a discussion of powder and particles is required in articles. Topics include: Production of powder and particulate materials in gases and liquids(nanoparticles, fine ceramics, pharmaceuticals, novel functional materials, etc.); Aerosol and colloidal processing; Powder and particle characterization; Dynamics and phenomena; Calculation and simulation (CFD, DEM, Monte Carlo method, population balance, etc.); Measurement and control of powder processes; Particle modification; Comminution; Powder handling and operations (storage, transport, granulation, separation, fluidization, etc.)