polymer absorbent Articles

  • History of super absorbent polymer chemistry

    Until the 1980’s, water absorbing materials were cellulosic or fiber-based products. Choices were tissue paper, cotton, sponge, and fluff pulp. The water retention capacity of these types of materials is only 20 times their weight – at most. In the early 1960s, the United States Department of Agriculture (USDA) was conducting work on materials to improve water conservation in soils. They ...

  • Economics of super absorbent polymers and waste stabilization

    Economics of Super Absorbent Polymers & Waste Stabilization The use of super absorbent polymer (superabsorbent polymer or SAP) in waste stabilization offers many advantages over more conventional absorbents. These advantages include: • Minimal increase in waste volume or weight • Lower transport fees due to less loads • Lower total landfill disposal fees due since waste volume has not ...

  • SAP (Superabsorbent Polymers) - case study

    Superabsorbers (SAP, superabsorbent polymers) are plastics, which are able to absorb 1000 times their own weight in liquid. The main areas of application are baby nappies as well as products for female hygiene and incontinence care. The task for AVA was to improve the existing SAP product quality, to increase the throughput of the overall plant, and to enable several process stages to be ...


    By AVA GmbH u. Co. KG

  • Quantification of polymer concentration in water using UV-Vis spectroscopy

    The goal of this study was to develop a method that uses UV-Vis spectroscopy for the determination of residual polymer concentration water and environmental samples. UV-Vis absorbance measurements are quick and simple and can be usefully applied in research and practice. Five different polymers exhibiting a wide range of polymer characteristics were tested in the UV range of 200–300 nm. ...


    By IWA Publishing

  • Decontamination of medical radioisotopes from hard surfaces using peelable polymer-based decontamination agents joint research project with CBI and Colorado State University

    Introduction Need for study: Contamination of treatment rooms Patient excretion Spills The efficacy of: 3 peelable decon agents removal of 3 medical isotopes from 2 surfaces Methods of Decontamination Absorbent pads and ...


    By KT Chemicals, Inc.

  • Magnetic nanocomposite materials obtained using magnetic nano fluids and resins

    The paper presents the possibility of creating a new category of magnetic nanocomposite materials, using magnetic nanofluids (MNF) and resins (Crainic et al., 2004). Polymer-embedded nanostructures are potentially useful for a number of technological applications, especially as advanced functional materials (e.g., high-energy radiation shielding materials, microwave absorbers, optical limiters, ...


    By Inderscience Publishers

  • More durable or more vulnerable? - Effect of nanoparticles on long–term performance of polymeric nanocomposites during UV exposure

    ZnO nanoparticle is being used as an inorganic UV absorber for polymers. However, the mechanism of how ZnO nanoparticles influence the photo degradation of polymersis is not well understood. This study has investigated the role of ZnO nanoparticles in the long–term performance of a polyurethane (PU) nanocomposite subject to UV radiation. PU samples containing different levels of ZnO nanoparticles ...


    By Inderscience Publishers

  • Synthesis of CdSe quantum dots in PVA matrix by radiolytic methods

    Polymer films of polyvinyl alcohol (PVA) containing CdSe quantum dots of various sizes from 3 nm to 5 nm have been synthesised by the radiation-chemical route using CdSO4 and Na2SeSO3 as the starting materials under a reducing condition. 2 MeV electron beam from an electron accelerator and the gamma radiation from a cobalt-60 gamma chamber were used as the irradiation sources for the syntheses. ...


    By Inderscience Publishers

  • More durable or more vulnerable? - Effect of nanoparticles on long-term performance of polymeric nanocomposites during UV exposure

    ZnO nanoparticle is being used as an inorganic UV absorber for polymers. However, the mechanism of how ZnO nanoparticles influence the photo degradation of polymersis is not well understood. This study has investigated the role of ZnO nanoparticles in the long-term performance of a polyurethane (PU) nanocomposite subject to UV radiation. PU samples containing different levels of ZnO nanoparticles ...


    By Inderscience Publishers

  • Infrared analysis of single and multilayer films in the production area

    There are many areas in production that can benefit from a rapid onsite measurement: determining which side is which on multilayer films to be laminated, checking rolls of film in the warehouse, measuring an individual layer within a film in the production area, raw material verification, and formulation discrimination are few examples. A new concept portable infrared spectrometer enables the ...


    By Spectro Scientific

  • Decolourization performance in C. I. Vat Yellow 1 aqueous suspension using hydrophobically modified poly(acrylic acid)

    A series of hydrophobically modified poly(acrylic acid) (PAA), poly(2-phenoxyethyl acrylate-co-acrylic acid) (poly(PHEA-co-AA)), have been synthesized and characterized by Ubbelohde type viscometry, Nuclear Magnetic Resonance (1H NMR) spectrometry and Differential Scanning Calorimetry (DSC). The shear thinning Non-Newtonian fluid behavior of their aqueous solution and the dependence on pH and ...


    By IWA Publishing

  • Phosphate Pre-Treatment of Steel: Always Powder Coating

     Always Powder Coating have replaced the conventional iron phosphate pre-treatment system with an organic process that operates at room temperature. The savings from reduced energy, labour and waste disposal costs amount to $60,000 per annum. Background Always Powder Coating (APC) operates a powder coating facility in Melbourne's eastern suburbs and specialises in ...


  • Global Acrylic Acid Market is Expected to Hit USD 22.78 Billion by 2020 : Grand View Research, Inc

    The global market for acrylic acid is expected to reach USD 22.78 billion by 2020, according to a new study by Grand View Research, Inc. Increasing adoption of super absorbent polymers in emerging economies such as India, China and Brazil is expected to be a key driver for the market over the forecast period. In addition, the growing demand for high strength materials with superior thermal ...


  • Growing efforts in climate change adaptation

    Though some US municipalities are beginning to address it, climate change adaptation or how an entity will cope with the likely incremental increases in temperatures and precipitation (both greater rainfall and droughts) is not discussed much in board meetings or other strategic sessions. The trends are real and no longer something that can be delayed to a future generation. A recent Weather ...


  • What Are Solar Buildings Technologies?

    Solar buildings technologies use the non-polluting power of the sun to help heat, cool, and power our buildings. Because buildings now use one-third of the energy currently consumed in this country, the potential markets for using solar buildings technologies in place of conventional ones is substantial. Whether you're a home owner, architect, builder, business owner, or industry or utility ...

  • Reviewing the factors affecting regenerative molten carbonate fuel cells

    To evaluate the possibility to use molten carbonate fuel cell technology for high temperature electrolysis, the factors affecting the electrode reactions have been examined by surveying the published literature. The literature results showed that H2, CO2 and CO evolved as cathode off–gases and O2 ...


    By Inderscience Publishers

  • CETCO scores a perfect 10 with RM-10 - eliminating hazardous waste disposal

    CETCO Oilfield Services’ Industrial Wastewater Treatment Division has over 30 years experience in treating industrial wastewater, helping clients meet compliance requirements and reduce costs. Additionally, CETCO Oilfield Services’ RM-10® flocculant has been successfully applied in the aerospace sector, turning a previously hazardous waste product into a delisted sludge. The aerospace facility ...


    By CETCO Energy Services

  • Toxicological and Environmental Safety Data - Case Study

    Introduction AGRAGEL is a cross-linked copolymer of acrylic acid and acrylamide partially neutralized as potassium/ ammonium salt. The polymer is in its dry form a granulate and forms a gel-like material upon addition of water or aqueous solutions. Due to the cross-linking it is insoluble in water. Uptake of water is facilitated mainly by the negative carboxylic groups of the polymer and ...

  • What’s the Point of Brake Fluid?

    The quality of brake fluid affects the reliability of the braking system and road safety. This substance transmits energy from master brake cylinder to wheel cylinder. Vehicle braking is characterized by friction forces between the brake rotor and brake pads. This releases a certain amount of heat which is transmitted to brake fluid through service elements of the brake system. ...


    By GlobeCore GmbH

  • All-carbon solar cell harnesses infrared light

    New type of photovoltaic device harnesses heat radiation that most solar cells ignore. Written by David Chandler, MIT News Office.You can read the original new in MIT NewsAbout 40 percent of the solar energy reaching Earth’s surface lies in the near-infrared region of the ...

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you