当代化工
噹代化工
당대화공
CONTEMPORARY CHEMICAL INDUSTRY
2015年
4期
695-698
,共4页
氢氧化铝干胶%碳化法%磷改性%结晶度%孔径分布%酸性质
氫氧化鋁榦膠%碳化法%燐改性%結晶度%孔徑分佈%痠性質
경양화려간효%탄화법%린개성%결정도%공경분포%산성질
Aluminium hydroxide%Carbonization method%Phosphorus modification%Crystallinity%Pore size distribution%acidity
研究了碳化法制备磷改性氢氧化铝干胶的性质及其影响因素，分别用XRD 、N2吸附、NH3-TPD表征样品的结构、晶体形貌、孔分布及酸性质。在碳化成胶过程中引入磷制备的磷改性氢氧化铝，磷的分散度较高；随磷含量增加，产物晶粒变小、结晶度降低、晶型变得不完整，孔径变大、孔容随之增大，表面酸性分布也发生相应变化。
研究瞭碳化法製備燐改性氫氧化鋁榦膠的性質及其影響因素，分彆用XRD 、N2吸附、NH3-TPD錶徵樣品的結構、晶體形貌、孔分佈及痠性質。在碳化成膠過程中引入燐製備的燐改性氫氧化鋁，燐的分散度較高；隨燐含量增加，產物晶粒變小、結晶度降低、晶型變得不完整，孔徑變大、孔容隨之增大，錶麵痠性分佈也髮生相應變化。
연구료탄화법제비린개성경양화려간효적성질급기영향인소，분별용XRD 、N2흡부、NH3-TPD표정양품적결구、정체형모、공분포급산성질。재탄화성효과정중인입린제비적린개성경양화려，린적분산도교고；수린함량증가，산물정립변소、결정도강저、정형변득불완정，공경변대、공용수지증대，표면산성분포야발생상응변화。
Aluminium hydroxide was firstly synthesized by using carbonization method, and then phosphorus modified aluminum hydroxide samples were obtained through introduction of phosphorus compounds. The samples were characterized by XRD, N2 adsorption and desorption and NH3-TPD analysis in order to examine its structure, crystal morphology, pore distribution and acidic properties. The results show that the phosphorus of phosphorus modified aluminum hydroxide with high dispersion exists in the product system; with the increase of phosphorus content, product grain decreases and crystallinity reduces, crystal becomes incomplete. In addition, phosphorus also makes the pore diameter of the sample largen and pore volume increase. NH3-TPD tests indicate that surface acidity distribution also change accordingly.
