表土剝離 的英文怎麼說
中文拼音 [biǎotǔbōlí]
表土剝離
英文
topsoil stripping-
The mechanical properties indicated that the improved exfoliation degree of mmts was essential for better properties of the nanocomposites, while the mechanical properties of interc alated nanocomposites were dependent on the structure of the organic modifiers 3
有機蒙脫土層間有機物含量較高，有利於聚合物插層和mmt片層剝離分散。片層剝離分散程度大，有利於提高復合材料的力學性能；插層型復合材料的力學性能與表面活性劑分子結構有關。The intercalating rate of modifier was 27. 3wt %. fourier - trandformed infrared spectroscopy ( ft - ir ) also shows that modifier has been between layers. a series of polyamide / montmorillonite nanocomposites were prepared by melting extrusion method in two - screwed extruder at first
首次對三元尼龍和蒙脫土復合進行了研究， tem結果表明：粘土片層雜亂無章地分散在基體中，平均厚度10nm ，形成剝離型納米復合材料。When the amt concentration was below 3phr ( 3g amt / 100g epoxy resin ), the cte values of composites decreased from 0 to 20 % of that of pure epoxy, however, the light transmittancies in near ir region of composites were more than 80 % of that of the pristine epoxy, indicating that epoxy / amt exfoliated nanocomposites could be used as packaging materials for optoelectronic devices
對剝離型納米復合材料的熱膨脹系數進行了研究，隨著粘土含量的增加體系熱膨脹系數顯著下降，且仍保持較好的光學透明性。表明粘土納米復合是一種很好的制備高透光率和低膨脹系數的光電器件包裝用環氧樹脂基復合材料的方法。Through the excel program, and combining the inside and outside environment of the excavation and stress field and displace field, the data of stress and displacement of points are analyzed in variable depth and load grade and terminal state. the spss software has been applied to the statistics of geometry parameter of failure surface, and the failure surface criterion is created by the linearity regression from d ( the longest horizontal distance between the failure surface and the side face of the slope ), ho ( the depth
此外，應用spss軟體對試驗破壞滑弧的幾何參數進行統計分析，並對滑弧的最大水平深入距離d及d處至坑底的高度h _ 0結合各水理指標進行多元線性回歸，建立滑面的判據，並對此判據進行修正，且用實際工程對其進行評價，通過反算已知滑面的c 、值，表明邊界條件對破壞形式有極大的干擾作用，所直接看到的破壞類型土體不是發生整體滑移破壞，而是剝落式的潰屈破壞。Thus mechanical properties, heat resistance properties and solvent resistance properties of pu are greatly enhanced. crystal forms of composite materials, surfacial reactivity and adsorption assemble properties of zeolite are discussed in this paper by means of xrd, ftir and tg etc. the test results of xrd prove that mmt can be exfoliated into nanocomposites in pu / mmt, while zeolite keep its original crystal structure in pu / zeolite. the spectras of ftir prove that tdi can graft on the surface of the zeolite
Xrd測試結果證實了有機蒙脫土在聚氨酷體系中能夠剝離成納米粒子，而聚氨醋/沸石分子篩復合材料中分子篩仍保持原來的晶型結構; ftir譜圖驗證了異氰酸酷（ tdi ）可太原理工大學碩士學位論文摘要與沸石分子篩表面的硅經基進行接枝反應形成穩定的化學鍵;而tg分析結果則進一步證實了分子篩的穿孔機理。Xrd test results showed that pp polymer chains have intercalated lays of ommt among the series pp - b. tem observed that ommt was stripped and close to the single layer of slices ; among the series pp - a, the characteristic diffraction peak of ommt still appeared the original position, which prove pp polymer chains were too difficult to intercalate directly lays of ommt, tem observed that ommt have serious reunion phenomenon and the majority exist by form who regiment form a cluster
Xrd測試結果表明： pp - b系列中的pp高分子鏈已經插層進入到有機蒙脫土的片層間， tem觀察有機蒙脫土大部分被剝離成接近單層片狀； pp - a系列中，有機蒙脫土的特徵衍射峰仍出現在原位置，說明pp大分子鏈很難直接插入蒙脫土片層間， tem觀察有機蒙脫土較嚴重的團聚現象，大部分以團簇的形式存在。With the increasing of montmorillonite loading, the peak position corresponding to secondary relaxation for composites moved to higher and the peak values appeard higher, too
表明良好剝離分散的蒙脫土片層在聚合物基體中由於強烈相互子網路結構是其獨特粘彈行為的關鍵。The factors relevant to montmorillonite intercalation and exfoliation were analyzed through x - ray diffraction ( xrd ), thermogravimetry ( tg ), transmission electron microscope ( tem ), scanning electron microscope ( sem ) and fourier transform infraredspectroscopy ( ft - ir ). the morphology, structure and properties for the composites were discussed
通過x -衍射（ xrd ） 、熱重分析（ tg ） 、透射電子顯微鏡（ tem ） 、掃描電子顯微鏡（ sem ）以及傅立葉變換紅外光譜（ ft - ir ）的表徵結果討論了影響蒙脫土剝離的因素，分析了復合材料的形態結構和性能。It was found that exfoliation of clay occurred when the curing speed of intra - gallery was faster than that of extra - gallery even the epoxy / clay compositions were cured at any temperatures, for any time and with any types of curing agents
研究表明，當蒙脫土層間的固化速度大於層外固化速度時，採用不同的固化劑，固化不同時間，在不同的溫度下固化都可以得到剝離型的環氧/蒙脫土納米復合材料。Curing agents and mixing conditions were two important factors that effected on exfoliation behavior of organophilic montmorillonite in diglycidylether of bisphenol a matrix. the organophilic montmorillonite was exfoliated completely and there were no d001 diffraction peaks with methyltetrahydrophthalic anhydride as curing agent and benzyldimethylanine as catalyst. properties test results show that mechmical properties, electricity properties, heat distortion temperature of the exfoliated nanocomposites were all improved by addition of the montmorillonite, and the nanocomposites had lower linear thermal expansion coefficiency and water absorption compared with neat epoxy resin
結果表明，環氧樹脂與有機蒙脫土的相容性好；混合條件和固化劑是影響有機蒙脫土在環氧樹脂中剝離的兩個重要因素，在一定的混合條件下並選用合適的固化劑可以使蒙脫土在環氧樹脂中完全剝離；剝離型環氧樹脂蒙脫土納米復合材料的力學性能、電性能、熱性能以及吸水性能與純環氧樹脂固化物相比均有不同程度的提高和改善。This paper mainly introduces technologies of bending carbon fiber reinforced plastic ( cfrp ) plates or fabrics to the web of reinforced concrete members, and also this paper discusses the design principles of carbon fiber reinforced plastic ( cfrp ) used in the reinforced concrete members, as well as considering the preload effect to the bending capacity of the reinforced concrete members. finally, a kind of new practical method is put forward, and may be a reference for practical engineering designer. in the meantime, this paper analyzes the " local failure " caused by shear and normal stress concentrations at the plate ends that can easily incorporated into design equations. furthermore, the bonding and anchoring conformation of concrete members strengthened by carbon fiber reinforced plastics also be set forth
本文重點研究碳纖維製成織物片材粘貼到混凝土表面用於結構的補強與加固的技術特點，從理論上探討cfrp加固混凝土結構的設計原理，分析二次受力對加固結構的彎矩承載力的影響；同時對外貼碳纖維加固混凝土的抗彎和抗剪提供一種簡單、實用的設計方法，供工程設計人員參考，對碳纖維布加固混凝土梁中出現剝離破壞也進行了分析，提供了最大剝離正應力的計算公式，以及對外貼cfrp加固結構構件的粘貼構造與錨固進行了闡述。Based on tem images and ft - ir characteristics, it is found that most of layers formed as " pseudoparticles ", which connected due to very strong interaction. as a result, the tensile modulus of the composites were more tower than the corresponding values calculated by using halpin - tsai continuous equation, but higher than those of polymer matrix
Tem 、 ft - ir等表徵發現，復合材料中蒙脫土片層可以很好地剝離分散於聚合物基體中，但片層並非完全以單片層分散狀態剝離，而是以片層堆疊形成「準粒子」 ；同時，還存在一定量的團聚體。Secondly, the intercalation and exfoliation behavior of two layered silicates modified by organic cation ( dk1 and dk3 ) with the resol under different conditions is investigated. it is found that the intercalated structure of dk3 is preserved and exfoliated in cured rplsn, while the resol intercalated in dk1 is deintercalated when it is cured. it is suggested that dk3 intercalated in the resol is more stable in the curing process than dk1
結果表明， dk3在樹脂中較為穩定，能形成剝離型納米復合材料，而dk1在樹脂中不穩定，固化后， d _ （ 001 ）反而會有所減小；兩者插入過程都非常快；對dk3來說，在合成樹脂過程中立即加入粘土和將樹脂與dk3進行直接熔融插層的效果差別不大。The structure of the composites was characterized by x - ray diffraction and transmission - electric microscope. the experimental results showed that the in - situ intercalation realized much finer dispersion of the silicate layers in the pvc matrix than the melt - blending intercalation. as for as the properties of the composites, the well - dispersed organoclay in the composites improved the properties of the materials, especially for the viscat softing temperature
本文主要通過x射線衍射、透射電子顯微鏡對復合材料的結構進行表徵，結果證明：原位插層復合材料中粘土片層基本剝離，均勻的存在於聚氯乙烯樹脂基體中；熔融插層體系中粘土的分散狀態明顯劣於原位插層體系，粘土以一定量片層堆積的形式存在。分享友人