Formulation Material Selection

Solving Surface / Interfacial Tension Issues (Wetting, Leveling…)

Solving Surface / Interfacial Tension Issues (Wetting, Leveling…)
Language: English
Length: 90 min
Recorded on: 21 Oct 14

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6 months access to Course Recording, Presentation Slides, Q&A Transcript

Course Description

Solve your surface tension issues (pigment dispersion, adhesion, leveling...) by expertly balancing your surfactants (wetting agent, levelers, defoamers…).

Johan Bieleman will share his 35+ years of practical experience on how to select the right chemistry (polysiloxane, polyfluorsurfactant...) and how to avoid side-effects between your surface-active additives.

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Intermediate
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Johan Bieleman
Johan Bieleman
Patcham
0 courses

Johan Bieleman has been working in the coating industry for more than 40 years.
He graduated in organic chemistry and concluded his studies in paint and polymer technologies in 1971.
Johan has held management positions in R&D and marketing departments at companies such as Servo-Delden BV / Nuodex Colortrend / Elementis Specialties. He has worked as a consultant for Ciba / EFKA, Soujanya, CP Kelco, SpecialChem and for Patcham, UAE (since 2008).
Johan Bieleman has published several technical articles and papers mostly dealing with colorants and coating additives. In addition, he is the editor of "Additives for Coatings", published by Wiley-VCH.

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Why should you view this course?

Formulating waterborne systems requires the use of plenty of surface-active additives (wetting agents, levelers, associative thickeners, defoamers...) and it is often difficult to find the right balance in composition to achieve desired performance while minimizing side-effects.

  1. Save time selecting surfactants (polysiloxanes, polyfluorsurfactants, APE-free organic surfactants...) with a detailed review of their pros & cons by an expert in additives.

  2. Reduce costs of your WB coatings and inks by adjusting variety and loadings of additives used to reach targeted performance.

  3. Achieve better balance in paint properties (wetting, adhesion, leveling, film appearance...) by efficiently controlling tensions at different interfaces.

Who should join this course?

  • Formulators, technicians, engineers, scientists, and managers involved in the development of waterborne paints, inks, and related ingredients, as well as those switching from solventborne coatings.

  • This course is suitable for intermediate level proficiency
    Intermediate
Course Outline

The following sections will be covered during this session:

Introduction: source and meaning of interfacial tension

Features of interfacial tension modifiers

Product categories (benefits & limitations)

  • Organic hydrocarbon-based interfacial tension modifiers
  • Polysiloxanes
  • Polyacrylates
  • Polyfluorsurfactants

Achieving optimal performance

  • Adjusting interfacial tension of waterborne paints and inks
  • Adjusting interfacial tension of paints and inks for plastics, low surface tension substrates
  • Pigment wetting
  • Substrate adhesion
  • Leveling

Selection methodology for problem solving

  • How to avoid side effects
  • Correction of surface tension related to paint film defects (crawling, cratering, pinholes, Benard cells, orange peeling, etc.)
  • Leveling agent chemical structure depending on required features
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Solving Surface / Interfacial Tension Issues (Wetting, Leveling…)
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