Dual⁃synergistic effect of 4A zeolite and Ca⁃Mg⁃Al hydrotalcite on intumescent flame retardant PP and its mechanism

doi:10.19491/j.issn.1001-9278.2022.07.001

Abstract

WU Wei, HU Huanbo, SHEN Hui, ZHAO Tianyu. Dual⁃synergistic effect of 4A zeolite and Ca⁃Mg⁃Al hydrotalcite on intumescent flame retardant PP and its mechanism[J]. China Plastics, 2022, 36(7): 1-7.

Figures/Tables 12

References 11

1	Motahari S， Motlagh G H， Moharramzadeh A. Thermal and flammability properties of polypropylene/silica aerogel composites［J］. Journal of Macromolecular Science Part B⁃Physics， 2015， 54（9）： 1 081⁃1 091.
2	Martin Spoerk， Clemens Holzer， Gonzalez⁃Gutierrez J. Material extrusion⁃based additive manufacturing of polypropylene： a review on how to improve dimensional inaccuracy and warpage［J］. Journal of Applied Polymer Science， 2020， 137（12）： 48545.
3	Mohd Y. A review on flame retardant textile finishing： current and future trends［J］. Current Smart Materials， 2018， 3（2）： 99⁃108.
4	Hajibeygi M， Mousavi M， Shabanian M， et al. The effect of phosphorus based melamine⁃terephthaldehyde resin and Mg⁃Al layered double hydroxide on the thermal stability， flame retardancy and mechanical properties of polypropylene MgO composites［J］. Materials Today Communications， 2020， 23： 100880.
5	Zhang L， Wu W， Li J H， et al. New insight into the preparation of flame⁃retardant thermoplastic polyether ester utilizing⁃cyclodextrin as a charring agent［J］. High Performance Polymers， 2016， 29（4）： 422⁃430.
6	Khanal S， Lu Y， Ahmed S， et al. Synergistic effect of zeolite 4A on thermal， mechanical and flame retardant properties of intumescent flame retardant HDPE composites［J］. Polymer Testing， 2020， 81： 106177.
7	Tang W， Han J， Zhang S， et al. Synthesis of 4A zeolite containing la from kaolinite and its effect on the flammability of polypropylene［J］. Polymer Composites， 2018， 39（10）： 3 461⁃3 471.
8	Huang J， Liang M， Feng C， et al. Synergistic effects of 4A zeolite on the flame⁃retardant properties and thermal stability of an efficient halogen⁃free flame⁃retardant EVA composite［J］. Polymer Engineering & Science， 2016， 56（4）： 380⁃387.
9	Hui Shen， Wei Wu， Wang Zhengyi， et al ．Effect of modified layered double hydroxide on the flammability of intumescent flame retardant PP nanocomposites［J］．Journal of Applied Polymer Science， 2021，138（40）：51187.
10	刘玲，赖学军. PP/EVA/OMMT纳米复合材料及其阻燃材料的动态燃烧行为［J］. 高分子通报，2010（5）：44⁃49.
	LIU L， LAI X J. Dynamic combustion behaviors of PP/EVA/OMMT and its flame retarded nanocomposites［J］. Polymer Bulletin， 2010（5）：44⁃49.
11	ZHENG W， WEI W， ZHONG Y， et al. Flame⁃retardant materials based on phosphorus⁃containing polyhedral oligomeric silsesquioxane and bismaleimide/diallylbisphenol a with improved thermal resistance and dielectric properties［J］. Journal of Applied Polymer Science， 2015， 132（9）： 41545.

样品编号	PP 含量	IFR 含量	O⁃SDS⁃LDHs含量	4A沸石含量
PP	100	0	0	0
PP/IFR	75	25	0	0
PP/IFR/O⁃SDS⁃LDHs	75	23	2	0
PP/IFR/O⁃SDS⁃LDHs/Z0.5	75	23	1.5	0.5
PP/IFR/O⁃SDS⁃LDHs/Z1.0	75	23	1	1
PP/IFR/O⁃SDS⁃LDHs/Z1.5	75	23	0.5	1.5

样品编号	PP 含量	IFR 含量	O⁃SDS⁃LDHs含量	4A沸石含量
PP	100	0	0	0
PP/IFR	75	25	0	0
PP/IFR/O⁃SDS⁃LDHs	75	23	2	0
PP/IFR/O⁃SDS⁃LDHs/Z0.5	75	23	1.5	0.5
PP/IFR/O⁃SDS⁃LDHs/Z1.0	75	23	1	1
PP/IFR/O⁃SDS⁃LDHs/Z1.5	75	23	0.5	1.5

样品	LOI值/ %	UL 94（3.2 mm）
样品	LOI值/ %	t ₁/s	t ₂/s	是否滴落	级别
PP	18.0±0.5	BC	BC	是/是	—
PP/IFR	29.5±0.7	4.1	8.5	否/是	V⁃2
PP/IFR/O⁃SDS⁃LDHs	32.0±0.6	2.1	5.8	否/否	V⁃0
PP/IFR/O⁃SDS⁃LDHs/Z0.5	32.5±0.4	2.0	5.6	否/否	V⁃0
PP/IFR/O⁃SDS⁃LDHs/Z1.0	34.0±0.5	1.8	5.4	否/否	V⁃0
PP/IFR/O⁃SDS⁃LDHs/Z1.5	31.0±1.0	3.4	7.7	否/是	V⁃1

样品	LOI值/ %	UL 94（3.2 mm）
样品	LOI值/ %	t ₁/s	t ₂/s	是否滴落	级别
PP	18.0±0.5	BC	BC	是/是	—
PP/IFR	29.5±0.7	4.1	8.5	否/是	V⁃2
PP/IFR/O⁃SDS⁃LDHs	32.0±0.6	2.1	5.8	否/否	V⁃0
PP/IFR/O⁃SDS⁃LDHs/Z0.5	32.5±0.4	2.0	5.6	否/否	V⁃0
PP/IFR/O⁃SDS⁃LDHs/Z1.0	34.0±0.5	1.8	5.4	否/否	V⁃0
PP/IFR/O⁃SDS⁃LDHs/Z1.5	31.0±1.0	3.4	7.7	否/是	V⁃1

样品	PHRR/kW·m^-2	THR/MJ·m^-2	TTI/s	FPI/m²∙s·kW^-1	残炭率/%
PP	994	207	31	0.03	0
PP/IFR	293	122	24	0.08	11.93
PP/IFR/O⁃SDS⁃LDHs	174	101	20	0.11	12.85
PP/IFR/O⁃SDS⁃LDHs/Z1.0	134	95	19	0.14	14.81

Dual⁃synergistic effect of 4A zeolite and Ca⁃Mg⁃Al hydrotalcite on intumescent flame retardant PP and its mechanism

RichHTML

PDF

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 12

References 11

Related Articles 15

Recommended Articles

Metrics

Comments

元素	PP/IFR/O⁃SDS⁃LDHs			PP/IFR/O⁃SDS⁃LDHs/Z1.0
元素	W _t/%	A _t/%	r _c	W _t/%	A _t/%	r _c
C	13.02	22.14	-	13.09	21.02	-
O	33.48	42.75	1.93	41.08	49.52	2.36
P	45.80	30.20	1.36	35.57	22.15	1.05
Al	1.61	1.22	0.06	3.01	2.15	0.10
Mg	1.75	1.47	0.07	1.03	0.82	0.04
Ca	4.34	2.21	0.10	1.40	0.67	0.03
Na	0	0	-	2.37	1.99	0.09
Si	0	0	-	2.45	1.68	0.08

样品	T _{5 %}/ ℃	T _{50 %}/ ℃	T _max/ ℃	700 ℃ 残炭率/%
PP	387	446	452	0
PP/IFR	344	463	467	13.0
PP/IFR/O⁃SDS⁃LDHs	334	470	470	17.8
PP/IFR/O⁃SDS⁃LDHs/Z1.0	405	474	472	18.6

[1]	ZHANG Bing. Study on test of oxidation induction time for random copolymer polypropylene pipe [J]. China Plastics, 2022, 36(8): 107-109.
[2]	ZHAO Hongjing, ZHU Jiang. Study on numerical simulation of two⁃phase extrusion for micro/nano⁃laminated natural rubber/polypropylene [J]. China Plastics, 2022, 36(8): 110-114.
[3]	LIU Yi, WANG Ye, SUN Wei, QU Guoxing, XU Xia, YANG Shaolin, YUAN Ning. Determination of content of transparent nucleating agent in polypropylene using infrared spectroscopy [J]. China Plastics, 2022, 36(8): 115-118.
[4]	ZHANG Taozhong, CHEN Xiaolong, HAO Xiaoyu, YU Fujia. Comparison of mechanical properties and interfacial interactions of polypropylene composites filled with talc， calcium carbonate， and barium sulfate [J]. China Plastics, 2022, 36(8): 36-41.
[5]	YU Changyong, XIN Zhong. Effect of α/β complex nucleating agent based on hexahydrophthalate on properties of polypropylene [J]. China Plastics, 2022, 36(7): 121-128.
[6]	LIU Yi, SUN Wei, QU Guoxing, WANG Ye, YUAN Ning, YANG Shaolin, XU Xia, CHANG Xiaoyi, ZHANG Yufei. Structure and performance analysis of transparent polypropylene special material for thin⁃wall injection molding [J]. China Plastics, 2022, 36(7): 37-43.
[7]	SUN Wei, LIU Yi, LIAO Yunlong, CHEN Junjia. Study on influence factors for determination of ethylene content in polypropylene powder [J]. China Plastics, 2022, 36(6): 54-59.
[8]	WANG Qingsong. Development of glass⁃fiber⁃reinforced polypropylene with high strength and low VOC [J]. China Plastics, 2022, 36(4): 30-34.
[9]	WANG Fuyu, GUO Jinqiang, ZHANG Yuxia. In⁃situ fibrillation methods of polymer blends and their application in PP⁃based blends [J]. China Plastics, 2022, 36(3): 146-156.
[10]	LI Rui, JIANG Yanfeng, WU Shuang, AN Yanjie, JIANG Zeyu, ZHANG Mingqiang. Microstructure and thermal characterization of polypropylene special material for cast films through temperature rising elution fractionation [J]. China Plastics, 2022, 36(3): 53-57.
[11]	CAO Zhifeng, ZHAO Lipin, HE Ting, MA Baijun. Preparation and properties of five⁃layer co⁃extrusion barrier films [J]. China Plastics, 2022, 36(3): 64-68.
[12]	ZHAI Yujiao, XIN Chunling, HE Yadong, YAN Baorui, QIAO Linjun. Study on process parameters for filling process of polypropylene microcellular injection molding under supercritical N₂ [J]. China Plastics, 2022, 36(3): 69-74.
[13]	SONG Renda, WU Gaojian, CHEN Junxiang, ZHANG Youchen, YANG Weimin, XIE Pengcheng. Preparation and its electromagnetic shielding performance of PP/PET/CNTs foaming composites [J]. China Plastics, 2022, 36(2): 1-7.
[14]	HUANG Wei, LIU Hesheng, HUANG Xingyuan, ZHANG Wei, KUANG Tangqing, CHEN Zhongshi. Study on high⁃pressure water penetration behavior of square cross⁃sectional pipes based on short⁃glass⁃fiber⁃reinforced polypropylene [J]. China Plastics, 2022, 36(2): 82-88.
[15]	JIAO Qi, LI Ruilong, CHEN Couxi, ZHANG Shouyu, SONG Chengpeng, CHEN Tonghai, JIANG Ruyuan, ZHENG Pengcheng. Lifetime predication of coal⁃based polypropylene modified with ternary antioxidant composite system [J]. China Plastics, 2022, 36(1): 15-24.