Enhancement of fire performance for rigid polyurethane foam composites by incorporation of aluminum hypophosphite and expanded graphite

被引：14
作者：
Liu, Mengru [1 ]
Feng, Zhaohe [2 ]
Zhao, Ruiqing [3 ]
Wang, Bibo [4 ]
Deng, Dan [5 ]
Zhou, Zijian [1 ]
Yang, Yadong [1 ]
Liu, Xinliang [1 ]
Liu, Xiuyu [1 ]
Tang, Gang [1 ]
机构：
[1] Anhui Univ Technol, Sch Architecture & Civil Engn, 59 Hudong Rd, Maanshan 243002, Anhui, Peoples R China
[2] Hangzhou Steam Turbine Co Ltd, 1188 Dongxin Rd, Hangzhou 310022, Zhejiang, Peoples R China
[3] Fujian Agr & Forestry Univ, Coll Resources & Environm, Fuzhou 350002, Fujian, Peoples R China
[4] Univ Sci & Technol China, State Key Lab Fire Sci, 96 Jinzhai Rd, Hefei 230026, Anhui, Peoples R China
[5] Jiaxing Univ, Dept Polymer Sci & Engn, Jiaxing 314001, Zhejiang, Peoples R China
来源：
POLYMER BULLETIN | 2022年 / 79卷 / 12期
关键词：
Rigid polyurethane foam; Composites; Expanded graphite; Aluminum hypophosphite; Flame retardant; FLAME-RETARDANT SYSTEM; THERMAL-DEGRADATION; THERMOPLASTIC POLYURETHANE; AMMONIUM POLYPHOSPHATE; BEHAVIORS; DIETHYLPHOSPHINATE;
D O I：
10.1007/s00289-022-04084-7
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
A series of rigid polyurethane foam/aluminum hypophosphite/expanded graphite (RPUF/AHP/EG) composites were prepared by one-step water-blown method. The effects of AHP/EG on the cell structure, thermal stability, flame retardant as well as combustion behavior of the composites were investigated by Scanning electron microscope (SEM), Thermogravimetric analysis (TG), Limiting oxygen index (LOI), UL-94 vertical burning test and Micro-combustion calorimetry (MCC). Flame-retardant tests and thermogravimetric analysis confirmed that the AHP/EG system enhanced high-temperature stability and flame-retardant performance of the composites. The char residue of RPUF/AHP15/EG15 at 700 degrees C was 22.4 wt%, the LOI value was 26.4 vol% with V-1 rating in UL-94 test. Thermogravimetric analysis-Fourier transform infrared spectrometer (TG-FTIR) indicated that AHP/EG system significantly inhibited the generation of hydrocarbons, CO2, CO and esters from the pyrolysis RPUF matrix. XPS analysis showed that the combination of AHP and EG could promote RPUF matrix to form aromatic and aromatic heterocyclic structure, which was benefit to the formation of dense char layer, thus achieving the purpose of flame retardancy. Based on the analysis, the flame-retardant mechanism of RPUF/AHP/EG composites was proposed.
引用
收藏
页码：10991 / 11012
页数：22
相关论文
共 45 条
[1]  
American Society for Testing Material International, 2000, STANDARD TEST METHOD
[2]  
American Society for Testing Material International, 2019, STANDARD TEST METHOD
[3]   Preparation of flame retardant polyurethane foam from crude glycerol based liquefaction of wheat straw [J].
Chang, Chun ;
Liu, Liwei ;
Li, Pan ;
Xu, Guizhuan ;
Xu , Chunbao .
INDUSTRIAL CROPS AND PRODUCTS, 2021, 160 (160)
[4]   Enhancement of flame-retardant performance of thermoplastic polyurethane with the incorporation of aluminum hypophosphite and iron-graphene [J].
Chen, Xilei ;
Ma, Cuiyong ;
Jiao, Chuanmei .
POLYMER DEGRADATION AND STABILITY, 2016, 129 :275-285
[5]   Structure and Flame-Retardant Actions of Rigid Polyurethane Foams with Expandable Graphite [J].
Chen, Yongjun ;
Luo, Yuanfang ;
Guo, Xiaohui ;
Chen, Lijuan ;
Xu, Tiwen ;
Jia, Demin .
POLYMERS, 2019, 11 (04)
[6]   Application of Biodegradable Polyhydroxyalkanoates as Surgical Films for Ventral Hernia Repair in Mice [J].
Chen, Yun ;
Tsai, Ya-Hui ;
Chou, I-Ning ;
Tseng, Sheng-Hong ;
Wu, Ho-Shing .
INTERNATIONAL JOURNAL OF POLYMER SCIENCE, 2014, 2014
[7]   Mechanical Properties Improvement and Fire Hazard Reduction of Expandable Graphite Microencapsulated in Rigid Polyurethane Foams [J].
Cheng, Jia-Ji ;
Qu, Wen-Juan ;
Sun, Shao-Hua .
POLYMER COMPOSITES, 2019, 40 (S2) :E1006-E1014
[8]   Preparation of Zeolitic Imidazolate Frameworks and Their Application as Flame Retardant and Smoke Suppression Agent for Rigid Polyurethane Foams [J].
Cheng, Jiaji ;
Ma, Dan ;
Li, Shaoxiang ;
Qu, Wenjuan ;
Wang, Dong .
POLYMERS, 2020, 12 (02)
[9]   Flame retardancy and thermal degradation of halogen-free flame-retardant biobased polyurethane composites based on ammonium polyphosphate and aluminium hypophosphite [J].
Ding, Haiyang ;
Huang, Kun ;
Li, Shouhai ;
Xu, Lina ;
Xia, Jianling ;
Li, Mei .
POLYMER TESTING, 2017, 62 :325-334
[10]   Aluminum hypophosphite microencapsulated to improve its safety and application to flame retardant polyamide 6 [J].
Ge, Hua ;
Tang, Gang ;
Hu, Wei-Zhao ;
Wang, Bi-Bo ;
Pan, Ying ;
Song, Lei ;
Hu, Yuan .
JOURNAL OF HAZARDOUS MATERIALS, 2015, 294 :186-194
12345