Preparation and flame retardancy of intumescent/MH flame-retardant epoxy resins

被引：0

作者：

Lu, Lin-Gang ^{[1
]}

Chen, Ying-Hui ^{[2
]}

Cheng, Zhe ^{[2
]}

Yang, Shou-Sheng ^{[3
]}

Shao, Gao-Song ^{[1
]}

机构：

[1] Department of Science and Technology, Chinese People's Armed Police Force Academy, Langfang, 065000, Hebei

[2] Graduates Forces, Chinese People's Armed Police Force Academy, Langfang, 065000, Hebei

[3] Department of Fire Protection Engineering, Chinese People's Armed Police Force Academy, Langfang, 065000, Hebei

来源：

Cailiao Gongcheng/Journal of Materials Engineering | 2015年 / 43卷 / 05期

关键词：

Epoxy resin; Flame retardancy; Intumescent flame retardant(IFR); Nano-magnesium hydroxide;

D O I：

10.11868/j.issn.1001-4381.2015.05.009

中图分类号：

学科分类号：

摘要：

The flame retarding and mechanical properties of new flame retardant composites(FR/APP/MH/EP) were studied using limited oxygen index (LOI) measurement, UL-94 and cone test. The new flame retardant composites were prepared by adding nano-magnesium hydroxide(MH) into six-(4-of DOPO hydroxymethyl phenoxy) cyclotriphosphazene (FR), polyphosphate (APP) and epoxy resin(EP). The results show that when fix the FR/APP 1:1, adding 1% mass fraction MH, the limited oxygen index(LOI) value of EP2 (10%FR/10%APP/1%MH/EP) can reach 36.4%, the peak heat release rate (pk-HRR), average effective heat of combustion (av-EHC), average specific extinction area (av-SEA), average CO release rate (av-CO) of EP2 are reduced by 79.8%, 6.73%, 47.2%, 33.3%, respectively, compared with those of pure EP (EP0) and decrease 20.0%, 69.6%, 83.6%, 58.6%, respectively, compared with those of EP1 (10%FR/10%APP/EP), meanwhile, the tensile, bending and impact strengths of EP2 increase 47.6%, 75.2% and 196%, separately, compared with those of EP1. SEM observation reveals that EP2 forms a uniform, compact and continuous charred layers after burning, which has good flame retarding, smoke suppression and the toxic effects. ©, 2015, Beijing Institute of Aeronautical Materials (BIAM). All right reserved.

引用

页码：50 / 55

页数：5

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