BENJAMIN S. HSIAO

RESEARCH GROUP

Benjamin S. Hsiao, Distinguished Professor

Tel: +1-631-632-7793 | Fax: +1-631-632-6518

benjamin.hsiao@stonybrook.edu

Kristin Nelson, Administrative Assistant

Tel:  631-632-7929 (Chem) | 631-216-7532 (CIEES)

kristin.nelson@stonybrook.edu 

Gel Permeation Chromatography (GPC)

Gel permeation chromatography (GPC) is a type of size exclusion chromatography (SEC), that separates analytes on the basis of size. The technique is often used for the analysis of polymers. It is often necessary to separate polymers, both to analyze them as well as to purify the desired product.

Differential Scanning Calorimetry (DSC)

  • Applications for our single furnace furnace models include:

  • Traditional and advanced materials characterization

  • Oxidative Induction Testing (OIT)

  • Multi-user, ad-hoc DSC analysis

  • Isothermal kinetics studies and Polymorph characterization

  • UV curing and process simulation in polymers

Fisher Scientific Isotemp Incubator

  • External water reservoir allows continuous thermal decontamination by cyclically heating it to 80°C

  • Fully automated interior disinfection with 180°C hot air

  • Auto-start function adjusts internal space to preset incubation conditions

  • Capacitive probe regulates humidity between 60 and 95% rH

  • Audio/visual alarm and diagnostics warn of any deviation from set parameters

System microscope for material testing

 

The Leica DM LM is a modern system microscope with a modular design that makes it equally suitable for simple routine examinations in materials science and for materials research tasks. 
It has many features which make the user´s daily workload decisively lighter and more convenient. The key performance characteristics of the Leica DM LM are its universal application potential, stability, ergonomy and optics.

Instron SEM Make: Phenom-FEI

 

The Phenom Pure provides high-quality images while using basic features, and offers the market’s fastest loading and imaging time. The very reliable autofocus and automated source alignments make this the most user-friendly system on the market. It is the most economic and efficient tool for high-resolution SEM imaging. 

Tensile Test Machine: Instron

 

Description: The tensile tester allows deformation testing of fibers, films and composites to better accuracy and with less noise with a logical and efficient workflow.

Anton Paar Compact Rheometers

MCR rheometers deliver cutting-edge performance. The third generation features well-known as well as new and further refined rheological highlights: The air-bearing-supported, synchronous EC motor, the dynamic TruRate™ sample-adaptive motor controller, the patented normal force sensor integrated in the air bearing, the Piezo Axial Actuator, TruStrain™ real-time position control, improved electronics and numerous other features ensure the MCR series’ world-renowned rheological peak performance.

Economical Research Video-based Contact Angle Measuring Device: FDS Corp. 

 

  • High-performance six-fold power zoom lens with an integrated continuous fine focus.

  • Video system with adapter and CCD-camera.

  • Halogen lighting with continuously adjustable intensity without hysteresis for a homogeneous backlighting.

  • Static and dynamic contact angle measurement according to the Sessile and Captive Drop Method

  • Calculation of the surface and interfacial tension from the contours of pendant and sessile drops as well as from liquid lamellas on plates, rods and threads.

  • Calculation of free energy of solid surfaces and their components (e.g. dispersion, polar and hydrogen bond force contribution, and their respective acid and base portions) according to the theories of Wu, Zisman, Owens-Wendt, Extended Fowkes, Schultz 1, Schultz 2, Fowkes, Equation of State, and Van Oss & Good (FOCG).

  • Statistics and measurement error analysis 

Shimazdu TOC-VWP

  • Newly designed high-sensitivity NDIR achieves ultrahigh sensitivity measurements.

  • Sensitivity and accuracy enhanced by minimizing the reagent blanks that hinder accurate analysis.

  • Powerful oxidation through a combination of peroxosulfuric acid, UV illumination, and heating.

  • No need of purging of reagent bottle reduces consumption of carrier gas.

Microfine Grinder Analytical Mill  Model: IKA MF 10

The cutting-grinding analytical mill is used for crushing fibrous substances such as paper, vegetation and other materials with low volume weight. The ground material passes through a sieve before being discharged. The available accessories include – microfine grinder drive, cutting grinding head , standard ground vessel and an interchangeable sieve. 

Thermo Scientific Lindberg/Blue M 1100°C Moldatherm® Box 

Furnace Make: Fisher Scientific

Max temperature 1100 °C. Air vent and air inlet for inert atmosphere exchange.

PELCO easiGlow™ Glow Discharge Cleaning System

Make: easiGlow. PELCO easiGlow™ Glow Discharge Cleaning System is a compact, quick and easy to use standalone system. It is primarily designed for cleaning TEM grids and hydrophilization of TEM carbon support films, which have the tendency to be hydrophobic. A glow discharge treatment with air will make a carbon film surface negatively charged (hydrophilic) which allows aqueous solutions to spread easily.

GENESYS 10S UV-Vis spectrophotometer

Make: Fisher Scientific. UV-Vis spectrophotometer utilizes a high-intensity xenon lamp and dual-beam optical geometry. This spectrophotometer has a wavelength range of 190 to 1100 nm and a wavelength accuracy and repeteability of ±1.0 nm and ±0.5 nm. 

Parr Reactor Model: Parr-4848

Fully automated reactor with capacity of 10 L, heating range from 30 to 350 OC by circulatory jackets and can be operated up to very high pressure (2000 Psi). Available accessories include internal cooling coils, bottom drain valves, condensers, 1200 rpm stirrer, explosion proof components, liquid gas filling, and mon¬¬itoring systems with solvent recycling capability during the reaction.

2L Chemical lab Jacketed Glass Reactor Vessel with digital control Model: IKA-LR2.ST

Main feature of this reactor is; distribute heat transfer fluid evenly throughout the jacket, promoting precise temperature control and allowing temperature control units to operate at maximum efficiency with fast heating / cooling response (Temperature range from 30 to 300 OC).

Zeta Probe  Manufacturer: Colloidal Dynamics ​

The ZetaProbe is the easiest to use, most accurate zeta potential analyzer available. Samples can be measured without dilution or sample preparation at concentrations up to 60% volume. Even the direct measurements of pastes, gels, cements, and other difficult materials are possible with the ZetaProbe.

Surface Area Analyzer  Manufacturer: Quantachrome

Surface area analyzer is a very sensitive technique to find out the surface area, size, shape and volume of the pores. It is also useful to calculate the catalytic activity of the solid catalyst.

ATR-IR Spectrometer Manufacturer: Thermo Fisher Scientific ​

ATR is a sampling technique associated with infrared spectroscopy enables to examine samples directly in the solid/liquid state without further preparation. It helps to identify the functional groups in the complexes.

​Freeze-Dryer

Fully automated freeze dryer with advanced microprocessor controls
2 Liters in 24 hours, 2L capacity; Hot gas defrost; High sensitivity is ensured by multiple pressure transducers, minimum void volume and accurate coolant level control; CFC-Free, non-proprietary refrigents; Works between -48 to-85 C;195 LPM corrosion resistant vacuum pump.

Continuous Flat Sheet Membrane Casting Machine

The features include: 10" wide web; 30 ft/min max casting speed; Flat casting block with adjustable gardener knife; 1st gelation tank: 5 ft; 2nd rinsing tank: 5ft; Take-up/Drive: 40.5" circumference roll, Baldor 90V DC motor gearbox; Minarik Corp (RG 500A) DC motor speed controller; 5 rolls of polyester non-woven casting fabric.

Cross-Flow Pure Water Permeability Test System  Manufacturer: Quantachrome

Features include: 1 celcon test cell; 3/8" 316 SS tubing and swagelok fitting; Motor and pump; Feed reservoir; Control valve; Pressure gauge.

Cross-Flow Filtration System for Low Pressure NF and RO Membranes ​

Interchangeable between membrane coupon and element; 3/8" 316 SS tubing and swagelok fitting; Six PVDC test cells; One 2512 element; Multiple pressure gauge ports; Feed flowmeter; 18 L feed tank; Motor and pump; 250 psi max operating pressure; 2.5 GPM max feed flow.

High Pressure Cross-Flow RO Membrane Test System​

2" square tubular frame white powder coated  with 316 SS table top and instrument panel; Table mounted on  4" rubber casters; 1/2" 316 SS tubing and swagelok fitting; Six 316 SS test cells; Wanner hydra cell pump, motor, and pressure damper; 32 L feed tank; Feed by-pass system; Pressure regulator; Pressure relief valve; Pressure gauge; Temperautre indicator; Feed flowmeter; 1000 psi max operating pressure; 4 GPM max feed flow.

Spiral Element Test System To Determine Pressure Drop 

System 5 operates the pump on systems 4; Elements up to 2.5" diameter by 40" length can be tested; 1.5" square tubular frame white powder coated with 316 SS table top and instrument panel; Table mounted on 4" rubber casters.

Hollow Fiber Membrane Fabrication Pilot Line ​ 

1" thick epoxy coated marine plywood gelation and rinse tank mounted in 1.5" rectangular aluminum frame; Tank mounted on 4" rubber casters; Gelation tank: 6 ft; Rinsing tank: max 90 ft rinsing path length, chain driven fiber rinse system; 2.75" width and 5" diameter Polyurethane coated transfer roller driven by Baldor 90 V DC motor gearbox.

HF module mounting system ​

It is capable to test 3/8" diameter by up to 12" length module; Gear pump drive motor; Two digital pressure gauges; Back pressure regulator; Flowmeter; Glass feed reservoir; Plastic tubing.

Thermogravimetric analysis

Thermogravimetric analysis or thermal gravimetric analysis (TGA) is a method of thermal analysis in which changes in physical and chemical properties of materials are measured as a function of increasing temperature (with constant heating rate), or as a function of time (with constant temperature and/or constant mass.

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