• Home
  • Products
  • About
  • Contact

effect of high temperatur e spinning and pvp additive on

Current Location : Home > effect of high temperatur e spinning and pvp additive on

  • Investigation of Thermal Instability of Additive-Based

    Most photovoltaics operate at high temperature under sunlight. In this work the thermal instability of diiodooctane-based high-efficiency bulk heterojunction (BHJ) organic photovoltaics (OPVs) is studied. The BHJ layers were heated to various temperatures to investigate the changes in their physical properties using atomic force microscopy phase images.

    Get Price
  • (PDF) Study on the effect of a non-solvent additive on the

    The effect of the non-solvent additive concentration on the morphological properties of the hollow fibers was studied in terms of atomic force microscopy (AFM) and scanning electron microscopy (SEM). The pore size the nodule size and the roughness parameters at the inner and outer surfaces of the hollow fibers were studied by AFM.

    Get Price
  • Influence of Working Temperature on The Formation of

    Temperature is an important parameter during electrospinning and virtually all solution electrospinning processes are conducted at ambient temperature. Nanofiber diameters presumably decrease with the elevation of working fluid temperature. The present study investigated the influence of temperature variations on the formation of polymeric nanofibers during single-fluid electrospinning.

    Get Price
  • Effect of additives on the fabrication of poly(vinylidene

    May 01 2008 · Effect of the additives on the membrane hydrophobic and mechanical propertiesThe hydrophobicity of the PVDF-HFP membranes was found to be reduced when PVP was used as the additive for membrane fabrication because of its residues trapped in the polymer matrix . The effect of LiCl or glycerol addition into the dope solution on the resultant

    Get Price
  • Journal of Membrane Sciencertpvp

    acterized by high biocompatibility especially with blood and very low toxicity. On the contrary the use of PVP for preparing membranes to be applied in MD was never reported in the literature due to its hydrophilic properties. In this work the effect of the PVP percentage in the polymeric

    Get Price
  • Parameter Screening of PVDF/PVP Multi-Channel Capillary

    He C. Effects of solvent sort PES and PVP concentration on the properties and morphology of PVDF/PES blend hollow fiber membranes. J. Appl. Polym. Sci. 2010 116 1566–1573. Google Scholar Cheng L.P. Effect of Temperature on the Formation of Microporous PVDF Membranes by Precipitation from 1-Octanol/DMF/PVDF and Water/DMF/PVDF Systems.

    Get Price
  • How Temperature Impacts Oil Condition

    These are only a few of the side effects of running at a higher temperature but they play a critical role in the overall health of the machine and the lubricant. The relationship between temperature and chemical reaction rates (oxidation or the chemical aging of the oil) was theorized by Svante Arrhenius around the turn of the 19 th century.

    Get Price
  • (PDF) Study on the effect of a non-solvent additive on the

    The effect of the non-solvent additive concentration on the morphological properties of the hollow fibers was studied in terms of atomic force microscopy (AFM) and scanning electron microscopy (SEM). The pore size the nodule size and the roughness parameters at the inner and outer surfaces of the hollow fibers were studied by AFM.

    Get Price
  • Effect of polymer and additive on the structure and

    wt additive polyvinylpyrrolidone (PVP) as viscosity enhancer was also prepared for spinning. Stainless steel hollow fibers were spun by dry-wet spinning method and the details were described elsewhere 21-23 . All spinning experi-ments were carried out at room temperature and an overview of the spinning conditions are described in Table 1.

    Get Price
  • (PDF) Effect of nonsolvents on properties of spinning

    Table 22Degree of saturation (DS) of spinning solutions obtained at the nonsolvent concentrations tested Additive ( ) Water PVP PEG 5 0.53 0.12 0.26 7.5 0.79 ± ± 10 ± 0.23 0.51 Cloud point ( ) 9.5 43 19.5 DSgrams of additive used/grams of additive causing phase separation.

    Get Price
  • 493. Polyvinylpyrrolidone (PVP) (WHO Food Additives Series 15)

    BIOLOGICAL DATA Povidone is the generic name for polyvinylpyrrolidone (PVP). It is the soluble homopolymer of N-vinyl-2-pyrrolidone. As a food additive it appears as the form identified as K-30. To clarify the discussion the relationship of K-30 to other marketed forms is as follows Form K-range Average molecular weight K-15 or 17 12-18 10

    Get Price
  • Effect of poly(vinylpyrrolidone) additive on the

    Effect of high-temperature spinning and PVP additive on the properties of PVDF hollow fiber membranes for microfiltration. Macromolecular Research 2006 14 (6) .

    Get Price
  • 493. Polyvinylpyrrolidone (PVP) (WHO Food Additives Series 15)

    BIOLOGICAL DATA Povidone is the generic name for polyvinylpyrrolidone (PVP). It is the soluble homopolymer of N-vinyl-2-pyrrolidone. As a food additive it appears as the form identified as K-30. To clarify the discussion the relationship of K-30 to other marketed forms is as follows Form K-range Average molecular weight K-15 or 17 12-18 10

    Get Price
  • Light Stabilizers/UV AbsorbersPolymer Additives

    Oct 30 2019 · TAGS Light Stabilizers/UV Absorbers Heat Stabilizers The service life of polymers is limited by their degradation. Degradation can be caused by a number of environmental factors e.g. temperature humidity impurities mechanical load irradiation microorganisms chemicals and air.

    Get Price
  • Parameter Screening of PVDF/PVP Multi-Channel Capillary

    He C. Effects of solvent sort PES and PVP concentration on the properties and morphology of PVDF/PES blend hollow fiber membranes. J. Appl. Polym. Sci. 2010 116 1566–1573. Google Scholar Cheng L.P. Effect of Temperature on the Formation of Microporous PVDF Membranes by Precipitation from 1-Octanol/DMF/PVDF and Water/DMF/PVDF Systems.

    Get Price
  • (PDF) Study on the effect of PVP additive on the

    Study on the effect of PVP additive on the at room temperature and at an operating pressure of 5 psig. The objective of this study is to investigate the effect of spinning conditions on

    Get Price
  • Effect of Alcohol as Additives on the Morphology and

    L/m2.h.bar while rejections of PEG MW20 000 and PVP MW40 000 for wet-spun PES hollow fiber membranes were decreased with increased of n-propanol concentration up to 20 . Using above method PES hollow fiber UF membrane with high pure water permeation flux

    Get Price
  • Effect of PVP content and polymer concentration on

    With the addition of PVP the rejection of the PEI membrane increased from 6.32 10 13 to 11.2 10 13 and the rejection of the PAN membrane increased from 0.1 10 13 to 1.1 10 13. Thus PVP addition has an adverse effect on total rejection and membrane rejection.

    Get Price
  • Fabrication of Ag nanowire/polymer composite nanocables

    Mixed effect of main electrospinning nanocables exhibited great stability under high temperature and high humidity conditions. 2. Experiment 2.1. Materials The AgNW/PVP nanocables were fabricated by e-spinning with the precursor solution 2.8 (w/v) AgNWs and 5 (w/v) PVP in ethanol. However PVDF is not dissolved into ethanol or methanol.

    Get Price
  • Effect of water content on the glass transition

    Jan 05 2018 · Zhang and Zografi used PVP of a higher molecular weight and reported a glass transition temperature of about 420 K for dry PVP-trehalose at the same mass ratio of trehalose to PVP as that used in our experiments . This slightly higher T g value is consistent with the expected increase in T g with PVP molecular weight .

    Get Price
  • Influence of Working Temperature on The Formation of

    Temperature is an important parameter during electrospinning and virtually all solution electrospinning processes are conducted at ambient temperature. Nanofiber diameters presumably decrease with the elevation of working fluid temperature. The present study investigated the influence of temperature variations on the formation of polymeric nanofibers during single-fluid electrospinning.

    Get Price
  • Effect of water content on the glass transition

    Jan 05 2018 · Zhang and Zografi used PVP of a higher molecular weight and reported a glass transition temperature of about 420 K for dry PVP-trehalose at the same mass ratio of trehalose to PVP as that used in our experiments . This slightly higher T g value is consistent with the expected increase in T g with PVP molecular weight .

    Get Price
  • Effects of ShearingBob is the Oil Guy

    Mar 22 2011 · To simulate the shearing effect with different types of oils I use an old snake oil additive salesman machine called a Timken machine. This machine was and is used only by oil additive companies only. I have not seen any oil company (except one) that will demonstrate how well their oil will hold up on this machine.

    Get Price
  • Effect of high-temperature spinning and PVP additive on

    Effect of high-temperature spinning and PVP additive on the properties of PVDF hollow fiber membranes for microfiltration By Bong Jun Cha and Jung Mok Yang Cite

    Get Price
  • Effect of Polymers (PEG and PVP) on Sol-Gel Synthesis of

    Fibers irregular and seed-like microcrystalline ZnO were synthesized by using a cost-effective and low temperature aqueous sol-gel method. Various polymers namely polyethylene glycol 6000 (PEG 6000) and polyvinyl pyrrolidone (PVP) were used as structure directing agents. The samples were characterized by X-ray diffraction (XRD) Fourier transform infrared spectroscopy (FTIR) and

    Get Price
  • Effect of high-temperature spinning and PVP additive on

    Dec 01 2006 · Due to these effects the rejection rate and strength of the fibers were increased at the expense of reduced water flux and mean pore size which indicates that high-temperature spinning and PVP addition are very effective to control the morphology of PVDF hollow fiber

    Get Price
  • Journal of Membrane Science Research

    3.1. The effect of air gap length on hollow fibers at low and high PVP concentration in dope solution Figure 1 shows the cross section morphologies of hollow fibers spun with dope1 containing high concentration of PVP 15 at air gap length 80 40 20 and 10 mm respectively. As could be observed hollow fibers spun at the

    Get Price
  • Effect of PVP Lithium Chloride and Glycerol Additives on

    Effect of PVP Lithium Chloride and Glycerol Additives on PVDF Dual-Layer mixing the polymer and diluent at high temperature followed by cooling to induce phase separation. Subsequent removal of to and maintained at 140oC and the spinning temperature was 150 oC. After passing through the

    Get Price
  • (PDF) Study on the effect of PVP additive on the

    Study on the effect of PVP additive on the at room temperature and at an operating pressure of 5 psig. The objective of this study is to investigate the effect of spinning conditions on

    Get Price

Products News

  • metal powder manufacturerhigh purity alumina powder
  • recycling of the product of thermal inertization of
  • net injections post second largest refill season on record
  • refractory material zhengzhou yuxin kiln engineering co ltd
  • vitcas wood fired bread pizza oven pompeii amazon
  • plastikote welcome to the home of spray paintplastic kote
  • jb weld high temp putty
  • castable mass castable mass suppliers and manufacturers
  • global refractory market 2021 opportunities challenges
  • influence of water activity on hydration of tricalcium
  • magnesia brick kerui refractory
  • china al2o3 high alumina low cementhigh alumina low cement castable for rotary kiln
  • iron steel yokogawa middle east africa b s c c

Product Center

  • Alumina Hollow Ball Bricks
  • Corundum Spinel Castable
  • High Alumina Refractory Cement
  • High Alumina Low Cement Castable
  • High Alumina Refractory Ramming Mass
  • Trough Refractory Castable
  • Magnesium Iron Spinel Brick
  • Mullite Brick
  • Zirconium Mullite Brick

Hot Products

  • Light Weight Silica Insulation Brick
  • Zirconia Hollow Sphere Brick
  • Corundum Refractory Castable
  • Heavy Alkali Resistant Castable
  • High Alumina Low Cement Castable
  • High Alumina Self Flowing Castable
  • Micro Expansion Refractory Plastic
  • Phosphate Refractory Mud
  • Magnesia Zircon Brick

Images Show

About Us

Rongsheng's main products are various types of unshaped refractory products, which are widely used in metallurgy, nonferrous metals, building materials, electric power, petrochemical and other industries.

Rongsheng pays attention to technological innovation and product research and development, and has established close cooperative relations with many universities and scientific research institutes.

Zhengzhou Rongsheng Company © Copyrights. Sitemap