Adhesion Testing by CAT Technology

LUMiFrac

(CAT stands for Centrifugal Adhesion Testing)

In many areas of application e.g. adhesive bonding and coatings in automotive, electronics, optics, composite materials (bonding, layering, and coatings), it is essential for analyzing bonding strength for people like design engineers, R&D, and quality control.

The bonding strength is commonly tested by tensile strength. A traditional instrument can handle only one sample. To achieve reproducibility, the instrument requires lots of work such as clamping aids, alignment construction. Moreover, if wanted to perform a series of experiments, it is super time-consuming!

The new standard of adhesion testing applies CAT technology by LUM GmbH from Berlin, Germany.

The instrument, named LUMiFrac accomplishes the CAT technology by directly applying an incremental increasing redial centrifugal force to the specimen being tested.

adhesive pic
glue application in dental
tensile testing according to DIN EN 15870

Tensile testing according to DIN EN 15870

Adhesion Analyzer and 8 modules for the test assemplies png
LUMiFrac Testing Unit Stations
Test set up of a 90 deg peel test according to ISO 8510-1, 1990
Testing Setup of a 90 degree Peel Test according to ISO 8510-1:1990

Principal:

  • In the centrifuge unit, the radial directed centrifugal force provides the tensile force on a sample.
  • The rotational speeds can be up to 13,000 rpm.
  • The loading force is varied by the rotational speeds and the mass of the test stamp.
  • The instrument comes with SEPView software that performs the data acquisition and data management, data analysis and documentation.
  • When the critical tensile strength of the test specimen is reached, the joint fails, coating fractures, or delamination takes place and the test stamp moves slightly outward.
  • The test stamp is inserted into the failure detection module (FDM) which signals to the SEPView software.

 

Measurement principal using centrifuge technology

Benefits:

  1. Allow sample testing combination, parallel testing, and direct comparison
  2. Very compact benchtop instrument.
  3. Easy preparation of test specimen.
  4. Very short time for testing.
  5. Significantly improved reproducibility.
  6. Safety with capsuled housing.
  7. Comply with ISO 4624, JIS K 5600-5-7, DIN EN 15870, DIN EN 14869-2

For more information, feel free to contact -> Energetic Sun Co., Ltd.

T. 095 8562473, 089 5362485

E. sales@energeticsun.tech

admin – 9 April 2019

(Excerpt from the article: Centrifuge Technology Revolutionizes Adhesion Testing – Dispersion Letters 4 (2013).)

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