当前位置:
X-MOL 学术
›
ACS Sustain. Chem. Eng.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Green Synthesis of Biomass Phytic Acid-Functionalized UiO-66-NH2 Hierarchical Hybrids toward Fire Safety of Epoxy Resin
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2019-12-30 , DOI: 10.1021/acssuschemeng.9b05658 Jing Zhang 1, 2 , Zhi Li 1, 3 , Lu Zhang 1, 2 , Yunxian Yang 1, 4 , De-Yi Wang 1
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2019-12-30 , DOI: 10.1021/acssuschemeng.9b05658 Jing Zhang 1, 2 , Zhi Li 1, 3 , Lu Zhang 1, 2 , Yunxian Yang 1, 4 , De-Yi Wang 1
Affiliation
A phosphorus abundant biomass phytic acid (PA)-functionalized metal–organic framework (MOF) UiO-66-NH2 (PA-UiO66-NH2) was synthesized successfully as a novel fire retardant (FR) to reduce fire hazards and suppress smoke for the epoxy (EP) resin. The complexing and salt formation reaction between phosphate groups and both Zr species or amine groups on UiO-66-NH2 were verified by X-ray photoelectron spectroscopy and Fourier transform infrared spectroscopy. The EP/5PA-UiO66-NH2 sample exhibited excellent fire retardancy and toxic gases suppression property with a 41% decrease in the peak heat release rate and a 42% reduction in total smoke production. The slightly modified thermal degradation path of the EP/5PA-UiO66-NH2 sample was evidenced by means of pyrolysis gas chromatography–mass spectrometry, which led to the reinforced char with a strong barrier and a higher polyaromatic structure. Moreover, the amine and phosphorus groups may react with EP, thus providing a better interfacial strength between FRs and EP matrix. Therefore, the enhanced mechanical property was also observed by dynamic mechanical analysis with a light increment of storage modulus (8%). In perspective, functionalization of MOFs to modify the thermal decomposition of FR may provide a possible way for MOFs to become efficient FRs.
中文翻译:
生物质植酸官能化的UiO-66-NH 2分级杂种的绿色合成,对环氧树脂的防火安全性
成功合成了一种富含磷的生物量植酸(PA)-官能化的金属有机框架(MOF)UiO-66-NH 2(PA-UiO66-NH 2),作为减少火灾隐患和抑制烟尘的新型阻燃剂(FR)用于环氧(EP)树脂。通过X射线光电子能谱和傅里叶变换红外光谱法验证了UiO-66-NH 2上磷酸根与Zr或胺基之间的络合和成盐反应。EP / 5PA-UiO66-NH 2样品具有出色的阻燃性和有毒气体抑制性能,峰值放热速率降低41%,总烟雾产生降低42%。EP / 5PA-UiO66-NH 2的热降解路径略有改变样品通过热解气相色谱-质谱法证明,这导致了增强的炭具有很强的阻隔性和更高的多芳族结构。而且,胺基和磷基可与EP反应,从而在FR和EP基体之间提供更好的界面强度。因此,通过动态机械分析还观察到增强的机械性能,其中储能模量(8%)略有增加。从角度来看,MOF的功能化可修改FR的热分解,可为MOF成为有效的FR提供一种可能的方式。
更新日期:2019-12-31
中文翻译:
生物质植酸官能化的UiO-66-NH 2分级杂种的绿色合成,对环氧树脂的防火安全性
成功合成了一种富含磷的生物量植酸(PA)-官能化的金属有机框架(MOF)UiO-66-NH 2(PA-UiO66-NH 2),作为减少火灾隐患和抑制烟尘的新型阻燃剂(FR)用于环氧(EP)树脂。通过X射线光电子能谱和傅里叶变换红外光谱法验证了UiO-66-NH 2上磷酸根与Zr或胺基之间的络合和成盐反应。EP / 5PA-UiO66-NH 2样品具有出色的阻燃性和有毒气体抑制性能,峰值放热速率降低41%,总烟雾产生降低42%。EP / 5PA-UiO66-NH 2的热降解路径略有改变样品通过热解气相色谱-质谱法证明,这导致了增强的炭具有很强的阻隔性和更高的多芳族结构。而且,胺基和磷基可与EP反应,从而在FR和EP基体之间提供更好的界面强度。因此,通过动态机械分析还观察到增强的机械性能,其中储能模量(8%)略有增加。从角度来看,MOF的功能化可修改FR的热分解,可为MOF成为有效的FR提供一种可能的方式。