Jiangsu Yangnong Chemical Group Co.

Yangzhou, China

Jiangsu Yangnong Chemical Group Co.

Yangzhou, China
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In this article, core-shell structured calcium copper titanate@polyaniline (CCTO@PANI) was synthesized using a simple procedure involving in situ polymerization of aniline in aqueous hydrochloric acid solution. Then, polydimethyl siloxane (PDMS) filled with self-prepared CCTO@PANI particles had high dielectric constant, low dielectric loss, and actuated strain which was greatly improved at low electric field. Meanwhile, the elastic modulus of CCTO@PANI/PDMS composites was increased slightly only with a good flexibility. Compared to pure silicone elastomer (8.94%), the CCTO/PDMS and CCTO@PANI/PDMS (The weight ratio of CCTO and aniline was 10) composites exhibited a greater actuated strain of 10.95% and 13.24% at a low electric field and filling content of 10 V/μm, respectively. This study provided a simple and effective method for the improvement of actuated strain at low electric field through addition of CCTO@PANI/PDMS composites due to the hyper-electronic polarization and a strong polaron delocalization, facilitating the wide application of dielectric materials. © 2017 Society of Plastics Engineers.


Ding K.H.,Jiangsu Yangnong Chemical Group Company
Journal of Applied Polymer Science | Year: 2017

In this study, poly(propylene glycol diacetate)s (PPGDAs) with different molecular weights were obtained by the esterification reaction of poly(propylene glycol) and acetic anhydride. We effectively reduced the residual moisture and hydrophilicity of PPGDA. Then, poly(dimethyl siloxane) (PDMS) was modified by the addition of only 5 wt % PPGDA, which possessed a high dielectric constant (k) and a large actuated strain at a low electric field. PPGDA was used to enhance the molecular polarity because of the more polar oxygen atoms and the greater number of ester groups. The great increase in k and the low elastic modulus of the PPGDA-PDMS composites lead to a great increase in the electromechanical sensitivity. When the molecular weight of PPGDA was about 4000, the PPGDA-PDMS composites had the largest actuated strain. As a result, compared to the pure silicone elastomer (8.94%), it exhibited a greater strain of 17.31% at a low electric field of 10.5 V/μm (an increase of ca. 1.94 times). © 2017 Wiley Periodicals, Inc.


Global Epichlorohydrin (ECH) (Propylene and Glycerin) Market for Electronics & Electrical, Paints & Coatings, Adhesives, Water Treatment Pulp & Paper, Textiles, and Other Applications: Global Industry Perspective, Comprehensive Analysis and Forecast, 2014 – 2020 The report covers forecast and analysis for the Epichlorohydrin market on a global and regional level. According to the report, the global epichlorohydrin market accounted for approximately 1,512.0 kilo tons in 2014 and is expected to reach approximately 2,262.8 kilo tons by 2020, growing at a CAGR of around 4.3% between 2015 and 2020.The study includes drivers and restraints for the epichlorohydrin market along with the impact they have on the demand over the forecast period. Additionally, the report includes the study of opportunities available in the epichlorohydrin market on a global level. Burgeoning demand for epoxy resins from paints & coatings industry is expected to drive the demand for the epichlorohydrin over the next few years. Moreover, rising demand for synthetic glycerin in various applications may fuel the demand for epichlorohydrin further. Epichlorohydrin harms health and environment tremendously. Thus, there are stringent mandates on the usage of epichlorohydrin in high dosages which in turn is expected to hamper the market growth in the near future. Nonetheless, increase in the production of bio-based epichlorohydrin is expected to open growth avenues for the epichlorohydrin market. In order to give the users of this report a comprehensive view on the epichlorohydrin market. To understand the competitive landscape in the market, an analysis of Porter’s Five Forces model for the epichlorohydrin market has also been included. The study encompasses a market attractiveness analysis, wherein raw material segments are benchmarked based on their market size, growth rate and general attractiveness. Traditionally, epichlorohydrin is majorly produced via petro-based feedstock propylene. However, companies have started focusing on using glycerin which in turn is slowing replacing propylene. Glycerin is expected to be the fastest growing raw material segment of the market within the forecast period as it used in the production of bio-based epichlorohydrin. Paints & coatings dominated the epichlorohydrin market in 2014 owing to the growing demand for epichlorohydrin based anti corrosion coatings in the automobile industry. Electronics & electrical application segment witnessed tremendous growth in the market in 2014 and accounted for more than 18% share in the market. This trend is expected continue in the near future. Moreover, applications such as textiles, adhesives etc are expected to witness modest growth within the forecast period owing to its extensive usage in chemical synthesis. The study provides a decisive view on the epichlorohydrin market by segmenting the market based on raw material, application and regions. All the segments have been analyzed based on present and future trends and the market is estimated from 2014 to 2020. Based on raw material, the epichlorohydrin market has been segmented into propylene and glycerin. Key applications segment include adhesives, paper & pulp, textiles, water treatment, electronics & electrical, and others. The regional segmentation includes the current and forecast demand for North America, Europe, Asia Pacific, Latin America and Middle East and Africa with its further bifurcation into major countries including U.S. Germany, France, UK, China, Japan, India and Brazil. The report also includes detailed profiles of end players such as Sumitomo Chemical Co., Ltd., Solvay, Aditya Birla Chemicals, Osaka Soda , Spolchemie A.S., Shandong Haili Chemical Industry Co. Ltd, Samsung Fine Chemicals Co. Ltd, The Dow Chemical Company, Jiangsu Yangnong Chemical Group Co., and Hexion Inc. The detailed description of players includes parameters such as company overview, financial overview, business and recent developments of the company. This report segments the global epichlorohydrin market as follows:


Long C.,Nanjing University | Long C.,National Engineering Research Center for Organic Pollution Control and Resources Reuse | Li Q.,Nanjing University | Li Y.,Nanjing University | And 5 more authors.
Chemical Engineering Journal | Year: 2010

The benzene and chlorobenzene is the representative of VOCs and widely exist in the industrial waste gas. In this paper, the removal characteristics of benzene and chlorobenzene vapor using a microporous hypercrosslinked polystyrene adsorbent (HPsorbent) were studied. The HPsorbent had the similar equilibrium adsorption capacities for benzene and chlorobenzene vapors with commercial granular activated carbon (GAC). The breakthrough adsorption capacities of benzene and chlorobenzene in the single and binary vapor system were also investigated. Although there exist a competitive adsorption between benzene and chlorobenzene vapors on HPsorbent, benzene and chlorobenzene removals of above 99% in the both system was attained before significant breakthrough occurred. On the other hand, a pilot-scale experiment was carried out to investigate the effectiveness of using HPsorbent to remove benzene-chlorobenzene vapors mixture from industrial byproduct hydrogen chloride gas. The results show that the hydrogen chloride gas did not have an adverse effect on the adsorption of benzene and chlorobenzene. In sum, HPsorbent should be potentially an effective adsorbent for removal of benzene-chlorobenzene vapors not only from air stream but also from hydrogen chloride gas. © 2010 Elsevier B.V.


Gao J.,Jiangsu Yangnong Chemical Group Co. | Ding K.,Jiangsu Yangnong Chemical Group Co. | Xu L.,Jiangsu Yangnong Chemical Group Co. | Wang F.,Yangzhou Polytechnology Institute
Proceedings - 2014 IEEE Workshop on Electronics, Computer and Applications, IWECA 2014 | Year: 2014

LaNiO3 films were prepared through the metal organic deposition method using La(NO3)·4H2O and Ni(CH 3COO)2·4H2O as starting materials, acetylacetone as a complexing agent, and 2-methoxyethanol as a solvent. The effect of the annealing atmosphere and ion stoichiometry on the film conductivity was examined. The results showed that the LaNiO3 phase was formed by the reaction between NiO, La2NiO3 and O 2. Thus, the film annealed under oxidization atmosphere had a higher conductivity than those annealed under nitrogen or air. Especially, annealed under wet O2, the LaNiO3 film had the highest conductivity, and the resistivity as low as (2∼5)×10-4 ωcm. The film density could be improved by increasing the film thickness, resulting the decreasing of the film resistivity. © 2014 IEEE.


Wang G.L.,Yangzhou University | Wang G.L.,Jiangsu Yangnong Chemical Group Co. | Duan L.,Yangzhou University | Ding K.H.,Jiangsu Yangnong Chemical Group Co. | Zhang M.,Yangzhou University
Journal of Applied Polymer Science | Year: 2015

In this article, copper (Cu) crystallites were successfully prepared via low temperature molten salt method, and the possible formation mechanisms were proposed. The conductive fillers of multiwalled carbon nanotubes (MWCNTs) and as-prepared Cu particles were designed and introduced into acrylonitrile-butadiene-styrene (ABS) blend to prepare different conductive composites. The dispersion states of conductive fillers and the morphologies of the composites were characterized using a field emission scanning electron microscope. The electrical resistivity of different composites was measured. The results showed that Cu and MWCNTs exhibited a synergistic effect in decreasing the electrical resistivity of the Cu/MWCNTs/ABS composites, because Cu that could locate between MWCNTs chain segments provides a better charge transport in the conductive pathways. Compared with pure ABS, the tensile strength, elastic modulus and thermal stability of the Cu/MWCNTs/ABS composites were significantly improved with the incorporation of Cu and MWCNTs. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41738. © 2014 Wiley Periodicals, Inc.


Ding K.H.,Yangzhou University | Wang G.L.,Jiangsu Yangnong Chemical Group Co. | Zhang M.,Yangzhou University
Journal of Applied Polymer Science | Year: 2012

In this article, the ZnS/epoxy nanocomposites were successfully prepared by the reaction of zinc acetate and H 2S gas via a simple step. Epoxy resin acted as the matrix for the formation of ZnS nanoparticles (10-20 nm) in the reaction system and kept them from agglomerating. The structure, composition, and mechanical properties of the resultant products were successfully investigated by powder X-ray diffraction, transmission electron microscope, field emission scanning electron microscope, energy dispersive X-ray fluorescence, and universal testing machine. Meanwhile, by employing differential scanning calorimetry (DSC) we had studied, under nonisothermal condition, the kinetic analysis of the cure reaction which was performed using two classic models: Kissinger and Flynn-Wall-Ozawa. The activation energy of curing reaction was 74.63 kJ/mol and 77.57 kJ/mol, respectively, by Kissinger's and Flynn-Wall-Ozawa's methods. The possible mechanism of preparation of ZnS/epoxy composites was discussed in this article. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012.


Ding K.,Yangzhou University | Ding K.,Jiangsu Yangnong Chemical Group Co. | Wang G.,Jiangsu Yangnong Chemical Group Co. | Zhang M.,Yangzhou University
Xiyou Jinshu/Chinese Journal of Rare Metals | Year: 2012

CoS nanoparticles were successfully prepared by the reaction of acetate solution and H2S gas in epoxy matrix. By employing differential scanning calorimetry (DSC), under non-isothermal condition, the kinetic analysis of the cure reaction was performed using two classic models: Kissinger and Flynn-Wall-Ozawa. Furthermore, the corrective properties of CoS/epoxy nanocomposites were studied by XRD, TEM, mechanical test and PL. The investigations showed that the mechanical properties of CoS/epoxy were obviously enhanced in the presence of MS nanoparticles. The possible mechanism of preparation of CoS/epoxy composites was discussed.


Ding K.H.,Yangzhou University | Ding K.H.,Jiangsu Yangnong Chemical Group Co. | Wang G.L.,Jiangsu Yangnong Chemical Group Co. | Zhang M.,Yangzhou University
Journal of Applied Polymer Science | Year: 2012

Polymer nanocomposites are usually made by incorporating dried nanoparticles into polymer matrices. This way not only leads to easy aggregation of nanoparticles but also readily brings about opaqueness for nanocomposites based on functionally transparent polymers. In this letter, transparent ZnO/epoxy nanocomposites with high-UV shielding efficiency were prepared via two simple steps: first, in situ preparation of zinc hydroxide (Zn(OH) 2)/epoxy from the reaction of aqueous zinc acetate (Zn(Ac) 2·2H 2O) and sodium hydroxide (NaOH) at 30°C in the presence of high-viscosity epoxy resin; second, thermal treatment of the as-prepared Zn(OH) 2/epoxy hybrid into ZnO/epoxy composites. Optical properties of the resultant ZnO/epoxy nanocomposites were studied using an ultraviolet-visible (UV-vis) spectrophotometer. The nanocomposites containing a very low content of ZnO nanoparticles (0.06 wt %) possessed the optimal optical properties, namely high-visible light transparency and high-UV light shielding efficiency. Consequently, the as-prepared ZnO/epoxy nanocomposites are promising for use as novel packaging materials in lighting emitting diodes technology. Copyright © 2012 Wiley Periodicals, Inc.


Ding K.H.,Yangzhou University | Ding K.H.,Jiangsu Yangnong Chemical Group Co. | Wang G.L.,Jiangsu Yangnong Chemical Group Co. | Zhang M.,Yangzhou University
Materials and Design | Year: 2011

In this paper, ZnO/epoxy composites with homogeneous dispersion were prepared via two simple steps: firstly, in situ preparation of zinc hydroxide (Zn(OH)2)/epoxy from the reaction of aqueous zinc acetate (Zn(Ac)2·2H2O) and sodium hydroxide (NaOH) at 30°C in the presence of high viscosity epoxy resin; secondly, thermal treatment of the as-prepared Zn(OH)2/epoxy hybrid into ZnO/epoxy composites. Meanwhile, the structure, composition and mechanical properties of the resultant products were successfully investigated. From the result of characterization we found that the composite had the optimal mechanical property at ZnO fraction of 5wt.%. Compared to pure epoxy resin, the improvement of ultimate tensile stress, elongation at break, tensile modulus and flexural strength achieved about 40.84%, 24.35%, 27.27% and 51.43%, respectively. The crack arresting mechanisms included particle matrix debonding, plastic void growth, in the composites with a stronger interface, significant plastic deformation of the matrix around the well bonded particles. At the same time, the possible reactive mechanism of the preparation of ZnO/epoxy composite was discussed in this paper. © 2011 Elsevier Ltd.

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