聚磷酸铵阻燃应用研究进展

doi:10.19964/j.issn.1006-4990.2023-0442

Abstract

Abstract:

Ammonium polyphosphate（APP） is widely used in polypropylene，polyurethane，epoxy and other polymers in the field of flame retardant because of its non-toxic，halogen free，smoke suppression，flame retardant effect and environmental friendliness.However，strong moisture absorption，high addition amount，poor dispersibility and limited compatibility with polymers are the drawbacks that hinder the further development of APP.In view of the above problems，the flame retardant mechanism and application of ammonium polyphosphate was systematically reviewed，and the relevant solutions were summarized.Firstly，The physical and chemical properties and flame retardant mechanism of APP were briefly introduces.Secondly，the research progress of APP flame retardants at home and abroad in recent years was reviewed，and the flame retardancy effects of different flame retardants such as single flame retardancy，com-pound flame retardancy，microencapsulated coating，chemical modification and nano compound flame retardancy were introduced in detail，and the advantages and disadvantages of different flame retardancy methods were summarized.Finally，the APP exist problems in the research of polymer flame retardant were discussed，and its development direction in the future was prospected.

Key words: ammonium polyphosphate, flame retardant mechanism, flame retardant method, flame retardant application, halogen-free flame retardancy, polymer

CLC Number:

TQ314

LI Yongxiang, YANG Xiaolong, LU Zhonghai, MA Hang, WAN Banglong, LI Yundong. Research progress of flame retardant application of ammonium poly-phosphate[J]. Inorganic Chemicals Industry, 2024, 56(5): 20-30.

Figures/Tables 6

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Table 1

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基体	添加量/ %	φ_PHRR/ %	φ_THR/ %	LOI/ %	UL-94	φ_TSR	φ_Rm/ %
WPU^［20］	25	23.94	—	—	V-0	—	60.21
PP^［22］	30	46.10	7.14	20.7	NR	43.90	—
WEP^［23］	15	54.90	32.00	29.8	—	57.46	—
TPU^［24］	10	86.89	24.17	27.0	V-0	—	39.58
PLA^［25］	5	7.91	15.38	26.0	V-2	—	18.70
UPR^［26］	30	63.11	48.86	36.3	V-0	30.86	52.91
PA6^［27］	10	16.89	22.86	25.0	NR	—	—
EP^［28］	15	67.02	25.17	26.5	NR	—	—

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Research progress of flame retardant application of ammonium poly-phosphate

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