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And the infrared spectroscopy is used to characterize the structure of extracting lignin.
Introduction Lignin is a natural polymer complex which is complicated in structure and uneven in relative molecular mass, it has high relative molecular mass and amorphous polymer structure and is difficult to hydrolyze in acid, its structure is formed by phenylpropane and has three structure like guaiazulene, syringyl ,p-hydroxyphenyl.
Lignin is mainly found in plants, and its structures are different in different plant fiber material.
Using IR spectrum characterize its structure.
[2] Li Xuefeng．Researches and developments in oilfield chemicals derived from lignin [J].Oilfield Chemistry,2006,23(2):180-183

Sea salt is an integral part of sea water and accumulates in the structure of clothing.
It identifies the structure of sea salt and chemical composition of oil that cause a variation of the properties of textile in contact with them.
Sea salt is an integral part of sea water and accumulates in the structure of clothing.
Sea salt represents crystals [14, 15], capable of integrating into textile structure and lingering in it [16].
Wang, Sea salt aerosols as a reactive surface for inorganic and organic acidic gases in the Arctic troposphere, Atmospheric Chemistry and Physics, (2015)11341–11353

Jones and Noraman [5] indicated the hydroxide is freshly precipitated from a solution of recrystallized ZrOCl2•8H20, the structure is most probably based on a tetramer of Zr(IV), [Zr4(μ-OH)8(OH)8]•xH2O, here the Zr atoms lie in a distorted square and are each linked by a pair of hydroxo bridges(Fig. 1) .For this structure the hydroxo group to Zr ratio is 4: 1. hydroxo bridges between Zr atoms are stable up to about 80°C.
The chemistry underlying the elimination of hard agglomerates as a result of alcohol washing' involves the removal of nonbridging hydroxo groups. strong interparticle bonding which gives hard agglomerates is associated with interparticle surface conden- sation reactions involving nonbridging hydroxo groups, e.g.
In preparation of adding H2O2 appeared bimodal structure at 406.2 C and 494.3C, after aging the bimodal structure was not obvious, near the peak disappears sharp peak at 516.1C, the exothermic peak represents the crystallization temperature for yttria-doped tetragonal zirconia.
These DTA and TG curves significantly different from the add in ethanol preparation of zirconia precursor curve (Fig 3.C,D), The bimodal structure indicated it should be different from the structure of [Zr4(μ-OH)8(OH)8]•xH2O.
The similar X-ray diffraction patterns indicated adding ethanol or hydrogen peroxide did not change the crystal structure of powder.

The as-etched 8 min surface has a distinct major micro-scale structure from the as-etched 6 min surface.
With the etching time increasing, the micro-scale of “concave-convex structure” increases and scale of the “smooth structure” decreases (in Fig.3d).
The hydrophobic property generated is as a result of the surface micro-scale “concave-convex ” structure.
Progress in Chemistry.18(2006)721-726
Biomimic from the superhydrophobic plant leaves in nature: Binary structure and unitary structure.

When the calcination increased to 1000 ℃, the agglomerate structure tend to become continuous with diameter range 57.1 nm to 77.1 nm.
It is clearly seen that the bigger diameter of continuous structure as compared to calcination temperature of 700 ℃.
The structure of nanofibers change from continuous structure to agglomerate structure and change back to continuous structure when calcination temperature changes from 700 ℃ to 750 ℃ and 1000 ℃.
Journal of Physics and Chemistry of Solids, 2017. 107: p. 150-161
Moloudi, Magnetic, conductive, and microwave absorption properties of polythiophene nanofibers layered on MnFe2O4/Fe3O4 core–shell structures.

Improvement of Crystallographic Texture of High Strength Interstitial Free Steels by the Control of Steel Chemistry and Coiling Temperature Basudev Bhattacharya R&D Division, Tata Steel, Jamshedpur 831001, India Email: basudev@tatasteel.com Keywords: High strength IF steel, coiling temperature, batch annealing, texture Abstract: Effects of steel composition and coiling temperature on textures of a series of high strength IF steels were studied.
The cold rolled samples exhibited typical band-like deformed microstructures, while fully recrystallised grain structures could be observed in all the annealed microstructures.

Study on Nonlinear Optical Properties of BSS Material Wen-Dan Cheng*, Chen-Sheng Lin, Zhong-Zhen Luo, Yi Yang State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P.
China cwd@fjirsm.ac.cn Keywords: ab-initio simulations, nonlinear optics, mid-infrared material, band structures, barium tin sulfide compound.
The second-order susceptibilities can be expressed in terms of the first-order susceptibilities [12] as follows: , (2) where the structure factor of F(2) = ma/(N2e3).
Results and discussions The band structures of BSS crystal are calculated by DFT method and Fig. 1a only gives the plot of three highest valence bands (HVBs) and three lowest conduction bands (LCBs).
Figure 1 (a) Energy band structure of top three valence bands and low three conduction bands for Ba7Sn5S15; (b) The calculated total and partial densities of states for Ba7Sn5S15 material.

AFM Study of Untreated and Treated Fibers of Mongolian Goat Cashmere Namsrai Javkhlantugs1,a, Enkhbaatar Ankhbayar1,b, Khishigjargal Tegshjargal1, Damdin Enkhjargal2 and Chimed Ganzorig1,c 1 Department of Chemical Technology, Faculty of Chemistry, National University of Mongolia, University Street 1, Ulaanbaatar 210646, Mongolia 2 Textile Institute of Mongolia, Ulaanbaatar, Mongolia a javhlantugs@num.edu.mn, benkhtur@num.edu.mn, cch_ganzorig@num.edu.mn Key words: Mongolian goat cashmere, Cuticle, Scale height, Bleaching, Atomic force microscopy (AFM).
The experimental results showed that the difference between the fine structure of the cuticle and surface roughness of untreated and treated fibers.
Moreover, the AFM experimental results indicated that the difference between the fine structure of the cuticle and the surface roughness for the untreated and the treated fibers.

According to regional data of 1:25 million, using zircon U-Pb method on regional crude, medium-grained porphyritic monzogranite (rock chemistry is syenogranite) were measured ages 159±50Ma, 129±38Ma.
Rock and mineralogy characteristics The rock is gray-gray yellow, coarse to medium-grained (medium-to coarse-grained) porphyraceous granite texture, massive structure, partially flow structure.
Structures in the microscopic are feldspar stripe structure and twin crystal development.
Account of sericite and muscovite can be seed in the crystal surface with weak zonal structure.
Structure is regular or irregular sheet.

Based on the modified polylactic acid modified calcium carbonate, calcium carbonate in later polylactic acid blend will form a network structure in the composite material, effective to prevent the expansion of micro cracks, secondly, between the modified calcium carbonate will produce the corresponding yield, so that the modified calcium carbonate structure between plastic deformation, can impact absorbing energy, effective therefore, calcium carbonate particles exist, can effectively make the extension of small cracks in composite materials by passivation.
Following the principle of direct polycondensation of poly lactic acid: CHOHCH3COOH = (& ~ 1) H2O+OH (CHCH3COO) &H In the course of using polylactic acid found in the existence of severalproblems of polylactide containing a hydrophobic agent group: one isvery much in the poly structure type, so is poor compatibility with othermaterials.
The blending of calcium carbonate and poly lactic acid, forming a network structure in the composite material, prevents the propagation of micro cracks, but also in the modified calcium carbonate particles inbetween each will be a corresponding restriction, generation of memorychanges between the modified calcium carbonate particles, which willabsorb some of the impact energy of the time.
By analyzing the mechanical properties, we can know clearly, the higher content of modified calcium carbonate, has good and obvioustoughening effect on polylactic acid composite material, this is because in the polylactic acid composite material received shock, calcium carbonate particles dispersed in the matrix in the poly lactic acid will beafter the impact, and disengaged from the polylactic acid, are similar to the empty cave phenomenon, and the hole diffusion constant in the presence of stress will eventually crack formation, at this time, if a highcalcium carbonate content, will form a network structure in the matrix of polylactic acid inside, such a structure would effectively create cracks noincrease in internal, so that various properties of polylactic acid increase,but when the content of modified calcium carbonate is very low, will notform a network structure, so it will not effectively, timely blocking themicro crack spread, thus forming a large cracks caused by our raw materials
Bhatia, Poly (lactic acid) -poly (ethyleneoxide) Block Copolymers: New Directions in Self-Assembly andBiomedical Applications[J], Current Medicinal Chemistry, 2011