3D Printing
News Videos Newsletter Contact us
Home / News / Researchers Analyse Polymers Using Atomic Force Microscopy
qidi

Researchers Analyse Polymers Using Atomic Force Microscopy

October 23, 2018

Despite its increasing popularity, there are still many areas of 3D printing that raise quite a few queries. Most pertinent of these is how to precisely map the way in which photopolymers behave on a microscale while processing. For example, mechanical and flow properties during curing on the single voxel scale are still a mystery. So now, a National Institute of Standards and Technology (NIST) are leveraging atomic force microscopy to gain insight into the structure and properties of photopolymers during processing.

The team are particularly looking to the sample-coupled-resonance photorheology (SCRPR) technique to shed light on some important properties. With this they will measure the voxel-scale changes in real time and potentially improve DLP, SLA and other photosensitive processes. Due to how slicing software build parts as thin layers, reconstructing them in 3D before printing, the physical material’s bulk properties lose similarity to those of the 3D printed parts. As a result, printing conditions, more than anything else, determine the abilities of the parts.

Measuring Material Properties

Researchers Analyse Polymers Using Atomic Force Microscopy

Atomic force microscopy uses a probe to measure changes at the submicrometer spatial resolution and submillisecond time resolution. The process also uses a photodiode to detect changes in light patterns. During photo-polymerisation, These changes add up and change the bulk material properties. These changes can be things like variations in light intensity or the reactive molecule diffusion. Atomic force microscopy can sense rapid, minute changes in surfaces and resin pools. The researchers even adapted the commercial AFM device to use an ultraviolet laser to initiate the polymerisation at or near the point where the AFM probe contacts the sample.

Although the research focusses on polymers and resins, it also has applications in biogels and hydrogels. The method does, after all, combine AFM with stereolithography. The use of light to pattern photoreactive materials ranging from hydrogels to reinforced acrylics gives it massive range in those other areas as well. The researchers are measuring the resonance frequency (frequency of maximum vibration) and quality factor (an indicator of energy dissipation) when it comes to the AFM probe.

Once they compile the data, the researchers will apply mathematical models and map them to each stage of the process. They can further extrapolate various qualities in relation to the process such as stiffness or dampness. The researchers conducted the tests on two materials. The first was a polymer film transformed by light from a rubber into a glass. The second material was a commercial 3D-printing resin that solidified in 12 milliseconds. The first material confirmed that exposure power and time and were complex, requiring fast, high-resolution measurements. The second confirmed that rises in resonance frequency seemed to signal polymerization and increased elasticity of the resin.

Featured image courtesy of NIST.

Share:
WhatsApp Twitter Facebook LinkedIn Buffer Reddit E-mail
Join our newsletter

Our newsletter is free & you can unsubscribe any time.

Latest posts

ASTM International Approves New Standard to Streamline AM Processes

ASTM International's additive manufacturing technologies committee (F42) has approved a new standard designed to help businesses navigate the procurement and delivery of 3D... read more »

News
ASTM International Approves New Standard to Streamline AM Processes

Trek Launches 3D Printed AirLoom Saddle Line

Trek has introduced its first 3D-printed saddle series, the Aeolus AirLoom, featuring what the company calls AirLoom lattice technology. The new design updates... read more »

News
Trek Launches 3D Printed AirLoom Saddle Line

QuesTek Partners with Niobium Producer to Develop High-Temperature 3D Printing Alloy

QuesTek Innovations has partnered with a global niobium producer to develop a high-temperature alloy designed for additive manufacturing. The project targets aerospace and... read more »

3D Printing Metal
QuesTek Partners with Niobium Producer to Develop High-Temperature 3D Printing Alloy

Autodesk Research and Additive Tectonics Develop 3D Printed Floor System with Alternative Materials

Autodesk Research has partnered with Additive Tectonics to develop a new approach to concrete floor construction using 3D printing technology. The collaboration combines... read more »

Construction

NREL Acquires Large-Scale Metal 3D Printer to Advance Marine Energy Research

The National Renewable Energy Laboratory (NREL) has installed a new laser-powered metal 3D printer at its Flatirons Campus to support marine energy device... read more »

3D Printing Metal
NREL Acquires Large-Scale Metal 3D Printer to Advance Marine Energy Research

Apple Adopts 3D Printing for Titanium USB-C Ports in New iPhone Air

Apple’s latest smartphone release marks a quiet but notable step in consumer electronics manufacturing: the company has confirmed that its new iPhone Air... read more »

3D Printing Metal
Apple Iphone 17 air

GKN Aerospace Expands Connecticut Facility for 3D Printed Engine Components

GKN Aerospace announced the expansion of its Newington, Connecticut facility to include a new production line for additively manufactured Fan Case Mount Ring... read more »

Aerospace
GKN Aerospace Expands Connecticut Facility for 3D Printed Engine Components

UltiMaker Launches Secure 3D Printing Line for Defense Applications

UltiMaker has introduced its Secure Line of 3D printing products specifically designed for defense and high-security environments. The initial lineup includes the UltiMaker... read more »

News
UltiMaker Launches Secure 3D Printing Line for Defense Applications

Digital Manufacturing Centre Delivers 90kg 3D Printed Military Vehicle Component

The Digital Manufacturing Centre (DMC) has completed production of its largest additive manufacturing metal component to date - a 90kg suspension and differential... read more »

3D Printing Metal
Digital Manufacturing Centre Delivers 90kg 3D Printed Military Vehicle Component

Designer Creates Modular Sneakers with 3D Printed Soles and Climbing Rope Laces

Daniyar Uderbekov, a designer based in Kazakhstan, has developed UDRB, a pair of modular sneakers designed to address environmental concerns in the footwear... read more »

Fashion

Social

  • Facebook Facebook 3D Printing
  • Linkedin Linkedin 3D Printing
Join our newsletter

Our newsletter is free & you can unsubscribe any time.

Featured Industries

  • Automotive
  • Aerospace
  • Construction
  • Dental
  • Environmental
  • Electronics
  • Fashion
  • Medical
  • Military
  • Snapmaker Artisan Premium 3-in-1

    • - Print size: 400 x 400 x 400 mm
    • - comes with enclosure
    More details »
    $2,999.00 Snapmaker
    Buy Now
  • QIDI Tech X-Max 3

    • - Print size: 325 x 325 x 315 mm
    • - fully enclosed
    More details »
    $799.00 QIDI Store
    Buy Now
  • QIDI Plus4

    • - Print size: 305 x 305 x 280 mm
    • - print temperature of 370°C
    More details »
    $799.00 QIDI Store
    Buy Now
  • QIDI Tech Q1 Pro

    • - Print size: 245 x 245 x 245 mm
    • - 600mm/s max speed
    More details »
    $449.00 QIDI Store
    Buy Now

Company Information

  • What is 3D Printing?
  • Contact us
  • Join our mailing list
  • Advertise with us
  • Media Kit
  • Nederland 3D Printing

Blog

  • Latest News
  • Use Cases
  • Reviews
  • 3D Printers
  • 3D Printing Metal

Featured Reviews

  • Anycubic Photon Mono M5s
  • Creality Ender 5 S1
  • The Mole 3D Scanner
  • Flashforge Creator 3 Pro

Featured Industries

  • Automotive
  • Aerospace
  • Construction
  • Dental
  • Environmental
  • Electronics
  • Medical
  • Military
  • Fashion
  • Art
2025 — Strikwerda en Dehue
  • Home
  • Join our mailing list
  • Contact us
Blog
  • Latest News
  • Use Cases
  • Reviews
  • 3D Printers
  • 3D Printing Metal
Featured Industries
  • Automotive
  • Aerospace
  • Construction
  • Dental
  • Environmental
  • Electronics
  • Medical
  • Military
  • Fashion
  • Art
Company Information
  • What is 3D Printing?
  • Contact us
  • Join our mailing list
  • Advertise with us
  • Media Kit
  • Nederland 3D Printing