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Study on structures and properties of CaSO4 whiskers/ PVC composites Shuhua Zhanga, Wenjun Ganb, Wuxing Sunc, Chenjun Lingd, Xie Wange, Qingfeng Lif College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China azsh7474@yahoo.com.cn; bpolymer07@sina.com; c1046465460@qq.com dlingcj@gmail.com; e335291597@qq.com; f531018765@qq.com Keywords: PVC(polyvinyl chloride); CaSO4 whiskers; modify; property test Abstract: Structures of CaSO4 whisker(A) and CaSO4 whisker(B) were characterized by IR and XRD, and the morphologies were observed by optical microscope.
The results showed that the modified CaSO4 whisker(B) has perfect crystal structure, high crystallinity and less defects.
The assignments of IR bonds are accordance with the structure of CaSO4.
(a) CaSO4 whisker(A) (b) CaSO4 whisker(B) Fig.1 IR spectrums of CaSO4 whiskers XRD of CaSO4 whiskers The experimental results in fig.2 demonstrated that modification didn’t damage the crystal structure of CaSO4 whisker, the crystallinity of CaSO4 whisker(B) was more and the crystal structure was more perfect comparing with CaSO4 whisker(A), because three main diffraction peaks of two kinds of CaSO4 whiskers were similar, but the strength’s diffraction peak of CaSO4 whisker(B) was more stronger.
Effect of calcine on crystal structure and stability of calcium sulfate whiskers[J].

In this work, firstly, the structure of SPR optic-fiber hydrogen micro-sensor was discussed.
The structure of SPR optic-fiber hydrogen micro-sensor.
Results and Discussions The structure of SPR optic-fiber hydrogen micro-sensor is shown in Figure 1.When the wavelength of incident rays is adjusted in some range, the surface plasmon wave of the platinum-doped WO3 films will be excitated, and the optical properties of sensitive films can be measured, through which the hydrogen concentration can be detected.
Shenoy: Journal of Materials Chemistry Vol. 1(2007), p. 17 [6] J.

Synthesis of CdS Nanoparticles by Sonochemical Reaction Using Thioasetamide as S2− Reservoir and in the Presence of a Neutral Surfactant, Dyeing of Cotton Fabric and Study of Antibacterial Effect on Cotton Fabric Masoumeh Tabatabaee a*, Paria Baziaria, Navid Nasirizadehb, Hamed Dehghanizadehb a Department of chemistry, Islamic Azad University- Yazd Beranch, Yazd, Iran.
X-ray diffraction (XRD) and transmission electron microscope (TEM) were used to characterize the structure and morphology synthesized powder.
X-ray diffraction (XRD) and transmission electron microscope (TEM) were used to characterize the structure and size of synthesized powder.
The crystal structure is Face-centered cubic and the entire d-line patterns match with reported values (JCPDS Card Pattern: 02-0454 for S and 42-1411 for R).

This paper examines the theory of formation of a silica film onto the silicon dioxide surface during this etching step by performing a shell balance analysis of silica species in the etched out liquid volume of the 3D NAND structures.
The basic reaction (not stoichiometrically balanced) is: (1) Figure 1: 3D NAND structures before and after phosphoric acid etch of SiN, with deposited film on SiO2 structures.
However if the colloid density becomes high enough within the structures, it could significantly decrease the solution diffusivity and instead make the process diffusion-limited.
Iler, Chemistry of Silica (John Wiley & Sons, NY, 1979)
Birdi, Surface and Colloid Chemistry (CRC Press, NY 2009)

New approaches in the development of thermostable NMs are considered with a special attention to the importance of the reproducibility of NM structures and properties.
It is a common practice at the present time to consider several varieties of NMs, such as consolidated objects, nanosemiconductors, nanopolymers, nanobiomaterials, numerous tubular objects, nanoporous materials, catalysts and supramolecular structures [4].
Essentially, all varieties of NMs with exception of supramolecular structures are in the non-equilibrium state.
In materials science, physics, chemistry and biology the effect of the grain (crystallite) size on the material properties is a long-explored problem.
This is essentially important for cutting and high-temperature friction applications; thermal and diffusion barriers; high-temperature catalysts and semiconductors; porous, emission and filter components; structures with great magnetoresistance, and so on.

The experimental results showed that the Ni-P coating was amorphous structure, and the Ni-P-PTFE coating was micro-pore structure; The wear resistance of Ni-P-PTFE coating was superior to Ni-P coating; In view of the micro-pore structure, the corrosion resistance of Ni-P-PTFE coating was worse than Ni-P coating, but they were all superior to carbon steels, and the service life of the steel tire mold were improved. 1.
We can see that the coating was micro-pore structure; it would reduce the corrosion resistance. 3.2 The composition of the coating （a）Ni-P coating （b）Ni-P-PTFE coating Fig.3 The EDS of Ni-P and Ni-P-PTFE coating Table 1 The composition of Ni-P and Ni-P-PTFE coating Element Ni-P coating Ni-P-PTFE coating Mass percentage Atomic percentage Mass percentage Atomic percentage Ni 88.47 80.18 85.42 75.10 P 11.53 19.82 10.99 18.31 F 1.83 4.96 Fe 1.76 1.63 Total 100 100 100 100 In order to determine the composition of the coating, the coating was analyzed by the INCA X-ray energy dispersive spectroscopy.
This is due to the micro-pore structure, the corrosion resistance of Ni-P-PTFE coating is worse than Ni-P coating.
(2) The Ni-P-PTFE coating is micro-pore structure; except Ni and P, the Ni-P-PTFE coating composed of two elements (F and Fe); the mass percentage of phosphorus is about 11%, so the coating is the high phosphorus coating
Technol., 197(2005), p. 61 [10] Xiufang Cui, Guo Jin, Qingfen Li, Yuyun Yang, Ying Li, Fuhui Wang: Materials Chemistry and Physics, 121 (2010), p. 308

THE DESIGN OF INTELLINGENT FIRE MONITOR SYSTEM BASED-ON DIGITAL IMAGE Liu Xiaoxu1, Huang xiaoli2, Cao lin2, 1.The School of Physics and Chemistry, Xihua University 2.
System architecture and hardware design System Structure.
Advanced RISC structure, a total of 133 instructions, most instructions can be completed in a single clock cycle execution.
The center controller hardware structure as shown in Figure 5.
Host software structure as shown in Fig.6.

The impact of the substrate temperature on the growth pattern and structure of thin film was investigated.
The performance of device depends on the structure of the materials used, and then the structure of material depends on the method of preparation and the corresponding process conditions.
Owing to the unique structure of thin film which is different with the bulk material, it has many advantages in the structure and performance.
The regular surface structure begins to emerge in Ni film (Figure 3b).
Zhou: Materials Chemistry and Physics, Vol. 100 (2006), p.168 [6] Q.Y.

Alexandratos, Ion-exchange resins: A retrospective from Industrial and Engineering Chemistry Research.
Industrial & Engineering Chemistry Research. 48(1) (2008) 388–398
Vietnam Journal of Chemistry. 61(5) (2023)
Asian Journal of Chemistry. 19(4) (2007) 3299–3300
Industrial & Engineering Chemistry Research. 53(34) (2014) 13436–13447

Nur Khoiru Wihadi4,h, Grasianto1,i* 1Department of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember (ITS), Sukolilo, Surabaya, 60111, Indonesia, 2Department of Chemistry, Tanjungpura University, Pontianak, West Kalimantan, Indonesia 3Research Center for Chemistry, National Research and Innovation Agency (BRIN), Kawasan Sains dan Teknologi (K.S.T) B.
Experimental Work 2.1 Materials and Methods Imidazole compounds 4-(4,5-diphenyl-1H-imidazol-2-yl)-2-methoxyphenol, 2-(4-methoxyphenyl)-4,5-diphenyl-1H-imidazole, 2,4,5-Triphenylimidazole, and 2-(4-nitrophenyl)-4,5-diphenyl-1H-imidazole were synthesized in the Natural Product and Chemical Synthesis Laboratory, Chemistry Department, Institut Teknologi Sepuluh Nopember.
Chemical structure of imidazole derivatives (a) Benzaldehid, (b) Nitro, (c) O-Me, (d) Vanillin.
Nakanishi, “Fabrication of unique porous polyimide nanoparticles using a reprecipitation method,” Chemistry of Materials, vol. 19, no. 8, pp. 1901–1905, 2007, doi: 10.1021/cm062709w