PMID- 24597470 OWN - NLM STAT- MEDLINE DCOM- 20151005 LR - 20140409 IS - 1944-8252 (Electronic) IS - 1944-8244 (Linking) VI - 6 IP - 7 DP - 2014 Apr 9 TI - Synthesis of highly efficient flame retardant high-density polyethylene nanocomposites with inorgano-layered double hydroxides as nanofiller using solvent mixing method. PG - 5094-104 LID - 10.1021/am500265a [doi] AB - High-density polyethylene (HDPE) polymer nanocomposites containing Zn2Al-X (X= CO3(2-), NO3(-), Cl(-), SO4(2-)) layered double hydroxide (LDH) nanoparticles with different loadings from 10 to 40 wt % were synthesized using a modified solvent mixing method. Synthesized LDH nanofillers and the corresponding nanocomposites were carefully characterized using X-ray diffraction, scanning electron microscopy, and transmission electron microscopy, etc. The thermal stability and flame retardancy behavior were investigated using a thermo gravimetric analyzer and microscale combustion calorimeter. Comparing to neat HDPE, the thermal stability of nanocomposites was significantly enhanced. With the addition of 15 wt % Zn2Al-Cl LDH, the 50% weight loss temperature was increased by 67 degrees C. After adding LDHs, the flame retardant performance was significantly improved as well. With 40 wt % of LDH loading, the peak heat release rate was reduced by 24%, 41%, 48%, and 54% for HDPE/Zn2Al-Cl, HDPE/Zn2Al-CO3, HDPE/Zn2Al-NO3, and HDPE/Zn2Al-SO4, respectively. We also noticed that different interlayer anions could result in different rheological properties and the influence on storage and loss moduli follows the order of SO4(2-) > NO3(-) > CO3(2-) > Cl(-). Another important finding of this work is that the influence of anions on flame retardancy follows the exact same order on rheological properties. FAU - Gao, Yanshan AU - Gao Y AD - College of Environmental Science and Engineering, Beijing Forestry University , 35 Qinghua East Road, Haidian District, Beijing 100083, P. R. China. FAU - Wang, Qiang AU - Wang Q FAU - Wang, Junya AU - Wang J FAU - Huang, Liang AU - Huang L FAU - Yan, Xingru AU - Yan X FAU - Zhang, Xi AU - Zhang X FAU - He, Qingliang AU - He Q FAU - Xing, Zipeng AU - Xing Z FAU - Guo, Zhanhu AU - Guo Z LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140319 PL - United States TA - ACS Appl Mater Interfaces JT - ACS applied materials & interfaces JID - 101504991 RN - 0 (Hydroxides) RN - 9002-88-4 (Polyethylene) RN - 9159UV381P (hydroxide ion) SB - IM MH - Hot Temperature MH - Hydroxides/*chemistry MH - Microscopy, Electron, Scanning MH - Microscopy, Electron, Transmission MH - Nanocomposites/*chemistry MH - Polyethylene/*chemistry MH - X-Ray Diffraction EDAT- 2014/03/07 06:00 MHDA- 2015/10/06 06:00 CRDT- 2014/03/07 06:00 PHST- 2014/03/07 06:00 [entrez] PHST- 2014/03/07 06:00 [pubmed] PHST- 2015/10/06 06:00 [medline] AID - 10.1021/am500265a [doi] PST - ppublish SO - ACS Appl Mater Interfaces. 2014 Apr 9;6(7):5094-104. doi: 10.1021/am500265a. Epub 2014 Mar 19.