Characterization of Bio-Derived Polymer Under Controlled Humidity
In this apps note, the properties of PLA are studied under various controlled humidity and temperature conditions.
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Determine Viscoelasticity and Spreadability of Cream Cheese
The viscoelasticity and spreadability properties of cream cheeses can be quantitatively evaluated using TA Instruments Discovery Hybrid Rheometer.
DetailsDetermining the Linear Viscoelastic Region in Oscillatory Measurements
This note will describe the linear viscoelastic region (LVR) and how to determine the LVR in oscillatory experiments for the purpose of obtaining quality data. All aspects of the LVR discussed in this note are general to viscoelastic samples, including (but in no way limited to) polymers, foods, gels, creams, pastes, slurries, emulsions, and inks.
DetailsEffect of Moisture and Substrate Material on Wall Friction Angle of Carboxymethyl Cellulose Powder
This work investigates the influence of moisture content and substrate material on the wall friction of carboxymethyl cellulose powder, which is used as an excipient in tablet formulations.
DetailsEffect of Moisture on Cohesion Strength of Carboxymethyl Cellulose Powder
The impact of moisture content on cohesion strength is measured using the TA Instruments Powder Rheology Accessory. It was found that as moisture content increases, cohesion strength also increases, demonstrating the importance of controlling humidity during processing.
DetailsEpoxy Powder Rheology: Impact of Temperature on Flow and Shear Properties
TA Instruments Powder Rheology Accessory for Temperature Control is used to study a filled epoxy resin for powder coatings. The results show that care must be taken in storage and processing, even at temperatures below the glass transition due to the effects on flowability and cohesion.
DetailsIn-Plane Measurement of Thermal Diffusivity of Copper Thin Film
This paper describes in detail the relevant theory and experimental design of measuring the in-plane thermal diffusivity of high thermal conductivity copper thin film samples with a flash diffusivity analyzer.
DetailsIn-Plane Measurement of Thermal Diffusivity of Graphite Thin Film
This paper describes in detail the relevant theory and experimental design of measuring the in-plane thermal diffusivity of high thermal conductivity graphite thin film samples with TA Instruments’ flash diffusivity analyzer DXF 200.
DetailsIntroduction to Polymer Melt Rheology and its Application in Polymer Processing
Polymer melt rheology aims to understand and quantify the viscous and elastic properties of a polymer so that the process parameters are aligned with the material’s melt properties and vice-versa.
DetailsMeasurement of Glass Transition Temperatures by Dynamic Mechanical Analysis and Rheology
This note will detail the use of dynamic mechanical analysis (DMA) and rheology to characterize the glass transition of a polymeric material.
DetailsPolymer Melt Rheology Workflow Automation: Auto-Trim Accessory for Discovery Hybrid Rheometers
The auto-trim accessory for Discovery Hybrid Rheometers automates the melting, gap setting, and crucial sample trimming step in polymer melt rheology testing. The automation of this step improves data consistency by up to 5x, increases continuous walkaway time by 80%, and reduces new operator training time to less than 30 minutes.
DetailsPowder Rheology of Graphite: Characterization of Natural and Synthetic Graphite for Battery Anode Slurries
The TA Instruments Powder Rheology Accessory was used with Discovery HR 30 rheometer to perform shear measurements. Duplicate measurements were performed with fresh samples under ambient conditions.
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