<Keynote Paper 1>
Science & Technology of Smart and Functional Additives

Prof. Jamil Baghdachi
Coatings Research Institute, Eastern Michigan University, USA

Abstract:

Smart polymers and coatings are widely used in global industries. Some multi-functional materials not only respond to external stimulus, but also render novel functions in addition to traditional properties. Smart and functional additives are one of the necessary ingredients of such coatings. Additives that respond to pH changes, some nanomaterials, colour changing, polarity switching and antimicrobial agents are among these materials. This paper will discuss the science and technology of smart and multifunctional materials, the present pathways and examples of such products. Current global R&D trends will also be highlighted.

About the Speaker:

Dr. Jamil Baghdachi is a Professor of Polymers and Coatings and the Director of Coatings Research Institute at the Eastern Michigan University. He joined the Coatings Research Institute in 1997, after spending 22 years at various technical and managerial capacities at BASF Corporation, DuPont, and ARCO Chemical Company. He is the author/editor of 4 books in related areas and has published over 122 papers including six book chapters and conference proceedings and holds 44 U.S. patents.

<Paper 2>
A Smart Technology to avoid Blistering of Low PVC Wall Coating

Mr. Wernfried Heilen
Vice President Technical Marketing, Evonik Industries AG, Germany

Abstract:

The source of moisture in the wall can be multiple and once it is in the wall, it needs to go out by evaporation. Wall coatings must deal with this problem. The drying process creates high water vapour pressure under the coatings. If the coating has not enough water vapour permeability, damage by blistering, cracking or delamination will happen. Low PVC semi-gloss and glossy wall coats usually have limited vapour permeability. To protect them against damage, a new technology has been developed based on a new co-binder technology which provides low PVC coatings with excellent vapour permeability thus reducing the risk of blisters and delamination.

About the Speaker:

Mr. Wernfried Heilen graduated at the University of Applied Chemistry in Krefeld, Germany, majored in Coatings Technology. He has involved in product development for waterborne industrial coatings at PPG Wuppertal; worked as Lab Manager at AKKAT Chemie relating to filler for architectural coatings. He was the Product Manager for various product groups including defoamer, wetting & dispersing, etc. at BYK. In 1983, he worked as the Head of Technical Service, and since 2001 the Vice President Technical Marketing at Evonik Industries AG (formerly Evonik Tego Chemie GmbH).

<Paper 3>
Novel Short-Chain Fluorosurfactants for Water-Based Industrial Coatings

Mrs. Rong Liao
Asia Pacific Technology Leader, DuPont Chemicals & Fluoroproducts, USA

Abstract:

Sustainable short-chain fluorosurfactant and fluororepellent (six or less fluorinated carbons) have been increasingly focused on in the coatings industry. This new technology delivers superior performance as well as an eco-friendly image because it cannot break down into PFOA or PFOS in the environment. This paper focuses on how short-chain fluorosurfactants can enhance the performance especially improving the surface defects of water-based industrial coating. It addresses the formulation design of a water-based epoxy primer and a two-component water-based polyurethane top-coat for general metal coating. Performance data includes wetting, levelling, stain- and corrosion-resistance, and durability. Impact on gloss, colour and adhesion will also be evaluated. This study revealed that the wetting, levelling, anti-corrosion and anti-tacky performance of epoxy primer were significantly improved without any negative effect on gloss, colour and adhesion of topcoat when adding short-chain fluorosurfactants.

About the Speaker:

Mrs. Rong Liao graduated from Polymer Science, Sichuan University in China. She then worked on high performance polymer research in Sichuan University for 4 years and after another 5 years in PolyOne as high performance polymer researcher chemist. She joined DuPont in 2005 and has worked on Polytetrafluoroethylene (PTFE) dispersion finishing formulation and led technical support for Teflon^® PTFE in Asia Pacific. Since 2011, Mrs. Liao began to lead technical support for Teflon^® PTFE and Capstone^® fluorosurfactant in Asia Pacific.

<Paper 4>
Next Generation High Efficient Matting Agents for UV Coatings

Mr. Khoo Teng Hai
Technical Product Manager, Lubrizol Advanced Materials, Performance Coatings, Asia Pacific

Abstract:

Compared to conventional coatings (waterborne, 1-pack or 2-pack systems), the field of radiation curable coatings holds different challenges on the formulation and curing side. Many of these challenges are caused by the curing mechanism. Especially the formulation of matted clear coats can become an extremely tough challenge to the formulator. In case of 100% solid coatings, it can be complicated finding the balance between (a) acceptable viscosity for the targeted application method (b) targeted gloss level and (c) desired film properties (e.g., scratch resistance, hardness, chem. resistance, etc.). To meet these often conflicting requirements implies the need for matting agents that operate via a different mechanism. An alternative matting mechanism to achieve required balance will be outlined.

About the Speaker:

Mr. Khoo Teng Hai got his BSc in Chemistry and MBA in Marketing. He has been working in the coatings industry since 1994. With majority of the time in specialty additives companies where he served in a variety of roles ranging from technical, market development to sales. Currently, he is the Technical Product Manager for Lubrizol Performance Coatings, which includes the responsibility to introduce technical solutions provided by Lubrizol and demonstrate the value it brings to customers.

<Keynote Paper 5>
Modern Additive Technology — a View into the Future

Dr. Guillaume Jaunky
Technical Director Research & Development, BYK-Chemie, Germany

Abstract:

Today's coatings technology is driven by a number of technical and commercial challenges. Beyond topics like sustainability, energy reduction and incorporation of renewable resources, "smart coatings" are of major interest. Innovative additive technologies, with their highly structured multifunctional polymer architectures, realize the smart surface and interfacial properties of stimuli-responsive materials, self-healing and self-replenishing coatings and self-stratifying additives. This paper will update sophisticated additive technologies including examples of industrial applications. Future perspectives bridging the gap between theory and applied science will also be discussed.

About the Speaker:

Dr. Guillaume Jaunky received his PhD at the University Louis Pasteur in Strasbourg, France (ULP) in 2001. After that, he studied Post-Doctorate at the University of Erlangen-Nürnberg in Germany, majored in Organometallic chemistry and intensive German language. He was awarded an Alexander Von Humboldt fellowship. In 2003, he got his Master Degree in Formulation Technology (colloidal systems and polymers) at Ecole Nationale Supérieure de Chimie de Mulhouse (ENSCMu) in France.

Dr. Jaunky involved in Research & Development at AGFA in Belgium. He joined BYK-Chemie GmbH (Germany) as Research & Development Lab Manager in 2006. He was Head Research & Development - Group Surface Additives since 2009. Currently, he is the Technical Director Research & Development and Head of Technology Group Surface, responsible for surface control additives, defoamers and alkoxylation.

To date, he has been listed as an inventor on more than 20 patent families.

<Paper 6>
New Superwetting Surfactants for Coatings Applications

Dr. Dai Ye
Senior Principal Chemist, Air Products, USA

Abstract:

Applying water-based coatings onto low energy substrates and contaminated surfaces present significant challenges, especially with wetting, flow and levelling of the applied material. To improve these properties, surfactants that diffuse to and adsorb at interfaces are used to reduce surface tension. New, low-foaming organic/ siloxane hybrid superwetting surfactants have been developed to provide premium equilibrium and dynamic surface tension reduction as well as improved flow and levelling for difficult-to-wet surfaces like wood, plastics and dirty metal. The importance of substrate wetting, flow and levelling will be presented focusing on superior performance of superwetting surfactants.

About the Speaker:

Dr. Dai Ye graduated from East China University of Science and Technology with the major of Materials Science. He is the Senior Principal Chemist of Specialty Additives group, Performance Materials Division, Air Products. He is responsible for new products development and technical service of additives (wetting agent, defoamer, dispersant) for waterborne coatings, inks, adhesives and others.

<Paper 7>
The Role of Thickeners in Optimising Coatings Formulation

Dr. Clemens Auschra
Group Leader Research, BASF, Germany

Abstract:

Waterborne interior decorative paints consist of many components that interact with each other providing a proper viscosity for storage and application. Suitable rheology is achieved through the thickener selection which depends on the formulation and application methods (brush or roller). This paper will illustrate how selecting the right thickeners is of paramount importance to achieve optimised coatings performance, thixotropy, sagging, stain resistance, colour acceptance and paint stability. The correlation between associative and alkali swellable thickeners with most important components in model formulations will be discussed.

About the Speaker:

Dr. Clemens Auschra, studied chemistry in Freiburg and Mainz in Germany. Since 1992 he has worked in different areas of research and development of additives for the companies Röhm GmbH, RohMax GmbH, Ciba Specialty Chemicals. He is R&D Manager for Polymers for Coating Additives at BASF SE Ludwigshafen today.

<Paper 8>
Developments in Dry Film Biocides

Mr. Kevin Roden
Regional Technical Manager – Asia-Pacific, Thor Group, Australia

Abstract:

There are now greater demands and expectations being placed on dry film biocides. Regulations controlling the use of biocides have changed, the collection of rain water is actively promoted, paints are being guaranteed to last much longer and antimicrobial claims are becoming the norm rather than restricted to specialised products. There is also a greater demand for paints to meet specifications set by Ecolebels with their particular restrictions. This paper looks at regulations controlling the use of film biocides and any labelling restrictions that may be imposed on paints containing them. Technologies developed to improve the performance of film biocides and reduce environmental impact will be discussed.

About the Speaker:

Mr. Kevin Roden graduated from the University of Sydney with a degree in Microbiology and Pharmacology. He has had extensive experience in microbiological testing and has been employed as Manager for two consultant Microbiological Testing Laboratories and Quality Assurance Manager for a vaccine manufacturer.

Kevin was employed in 1991 by Thor Specialties Limited in the position of Technical Services Manager and established a NATA accredited Microbiological Testing Laboratory for evaluating the performance of biocides in industrial and personal care products. He is currently Regional Technical Manager Asia Pacific, responsible for technical support to the Thor Specialties operating companies in the Asia Pacific region.

<Paper 9>
New High Performance Grinding Medium for Industrial Coatings Colourants

Mr. Johnny Zhang
Technical Development Manager Asia-Pacific, Allnex (HQ: Belgium)

Abstract:

The ever-increasing number of paint systems together with increased operation and labour costs are driving industrial coatings to switch to modern tinting systems, necessitating significant changes in production process. A high polymeric, multi-functional 'universal' pigment grinding medium designed to efficiently disperse, stabilise and transport organic and inorganic pigments in industrial coatings will be introduced. It shows broad compatibility and enables cost efficient production of highly loaded pigment pastes, enabling paintmakers to develop economical and high performing tint systems which will colour the major binder resin systems used in a variety of non-aqueous industrial coatings applications.

About the Speaker:

Mr. Johnny Zhang joined Allnex (formerly Cytec) in early 2007 as head of the Asia Pacific (AP) Technical Service & Development Department of the Liquid Coating Resins & Additives (LCR) business. He led the LCR technical team in providing technical and development support for Allnex’s products and technologies to AP customers. Mr. Zhang was appointed the Global Application Technology Manager in May 2011. In October 2013, he was appointed the Technical Development Manager for Radcure (Energy Curable Resins) and Liquid Resins & Additives, AP. Mr. Zhang is a Chemical Engineer with specialization in modern paint/coating technology. He has 20+ years’ working experience in the coatings and raw materials industry on formulations, application technologies, manufacturing processes and operation management.

<Paper 10>
Multi-functional Thermochromic Polymeric Shape Memory Composites

Prof. Long Lin
Head of the Department of Colour and Polymer Chemistry, University of Leeds, UK

Prof. Haibao Lu & Dr. Yongtao Yao
National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, P.R. China

Abstract:

The design, fabrication and characterisation of novel shape memory polymer (SMP) composites having a temperature sensing capability are reported. Such composites had been prepared by incorporating thermochromic particles as an additive. The effects of such an additive on the thermomechanical and thermally responsive shape memory (SME) properties of the resulting SMP composites had been characterised and interpreted. It was found that exposure of the composites to temperatures above 70 ºC led to a pronounced change of their colour that was recorded by the thermal and electrical actuation approaches was reproducibly reversible. It was also found that the colour of the composites was independent of the mechanical state of the SMP. Such effects enabled monitoring of the onset of the set/release temperature of the SMP matrix. Furthermore, the combination of thermochromic additive and the SMP resulted in significantly improved thermomechanical strength, absorption of infrared radiation and the temperature distribution of the SMP composites, which may find applications in high value-added functional coatings.

About the Speaker:

Prof. Long Lin is currently the Head of the Department of Colour Science at The University of Leeds, UK, the world-leading institute in colorants, printing and coating science and technology. He is also the Director of DP Centre of Industrial Collaboration at Leeds, a Chartered Chemist and a Fellow of the Institute of Paper, Printing and Publishing, a Fellow of the Technology of Surface Coating and a Fellow of the Royal Society of Chemistry. He has over 25 years of practical experience in the development of novel functional coatings and inks for many coatings and inks manufacturers worldwide, and acted as chief consultant of various companies.

Prof. Lin's research expertise covers coatings and inks, coating and printing, thermochromism, photochromism, organic dyes and pigments, security printing, functional coatings and inks, biosensors, polymeric materials, statistical experimental design and data analysis, computer-aided process modelling and computer-aided formulation optimisation.

Dr. Haibao Lu got his full professor position of Science and Technology on Advanced Composites in Special Environments Laboratory at Harbin Institute of Technology in 2012. He received his Ph.D. in engineering mechanics from Harbin Institute of Technology in 2010 and the national excellent doctoral dissertation award in 2012, from Chinese Ministry of Education. In 2009, he worked as a visiting scholar with tenured professor Jihua Gou at the University of Central Florida (UCF), U.S. Since 2007, he has authored and co-authored more than 100 papers in refereed international journals and conferences.

Dr. Yongtao Yao got doctor degree in Institute for Materials Research and Innovation, the University of Bolton in 2010. After then, he was involved in the Center for Composite Materials and Structures of Harbin Institute of Technology as the assistant research fellow. His field of research mainly focuses on investigation of nanocomposite materials, auxetic materials and their applications. Till now, he has authored or co-authored 20 scientific papers.

<Paper 11>
Improved Effects in Pigment Dispersion by Coating Additives with
Advanced Polymer Architecture

Mr. Ralf Knischka
BASF SE, Ludwigshafen, Germany

Abstract:

In recent years, formulation additives based on new controlled free radical polymerisation (CFRP) techniques have made their way into industrial reality. Especially in pigment dispersants, well-designed acrylic block copolymers can offer improved solutions compared to conventional dispersants. It is well-known that the selection of monomer chemistry and the chain length of AB-block copolymers are key design parameters. But the extent of “structural perfection” in polymer architecture needed to realise optimum performance has not been clear so far. This paper will show recent developments using nitroxyl-mediated polymerisation resulting in high-performance dispersing agents for demanding applications, with a focus on the use in waterborne applications. Detailed analysis in determining the level of structural perfection necessary to achieve optimal results and what impact deviations from the ideal structure have on the performance will be discussed.

About the Speaker:

Ralf Knischka received his PhD in Polymer Chemistry from the University in Freiburg in 2000. He joined Ciba Specialty Chemicals in 2001 working on the development of pigment dispersants via controlled free radical polymerzation. From 2004 onward he worked in product development for various field within coatings. Since 2009, Ralf is responsible in BASF SE for PD of Formulation Additives in Coatings.

<Paper 12>
Novel Application of Fluorosurfactants in Easy-Clean Architectural Paints

Ms. Charlene Guo
DuPont China R&D Center, USA

Abstract:

New research demonstrates that dosing the fluorosurfactants in both grind and letdown stages unlock their multi-functional benefits. This reformulation method, combined with several minor adjustments in the formulation, achieves the best overall easy-clean performance in low sheen paints. Three binders and two levels of PVC were evaluated with two short chain based fluorosurfactants to demonstrate easy-clean performance. Data for household and Leneta stain cleanability, as well as water and oil contact angles will be discussed in detail. No negative impact was observed on hiding power and wet scrub resistance. The use of fluorosurfactants thus is the most effective way to improve latex paint easy-clean performance.

About the Speaker:

Ms. Charlene Guo graduated from Shanghai Jiaotong University with Master Degree. She is now working on Asian Pacific technical service for Fluorosurfactant and Fluororepellent, E.I DuPont. She has 6 years formulation experience for architectural coating and industrial coating.

<Paper 13>
Thickening of Waterborne Systems: Why Hydrophobically Modified
Polymers (HM-P)

Dr. Leif Karlson
Akzo Nobel Functional Chemicals, Sweden

Abstract:

HM-P gives very good application properties to the paint e.g. good hiding power, paint consistency and spatter resistance. The thickening mechanism of HM-P includes contribution from chain entanglements as well as hydrophobic interactions. Both the length of the hydrophobic tails and the mol.wt & structure of the polymer backbone influence the properties of HM-P. Hydrophobic latexes give strong interactions with the HM-P resulting in high thickening efficiency and may also render the paint an elastic consistency. All surface active ingredients in the paint play active roles. Paint thickened with HM-P is sensitive to the surfactants that are included in colorant formulations, which can result in a reduction in viscosity of tinted paint.

About the Speaker:

Dr. Leif Karlson took a Master Degree in organic chemistry at University of Gothenburg in 1985 and a PhD in physical chemistry at University of Lund in 2002 on a thesis titled “Hydrophobically Modified Polymers - Rheology and Molecular Associations”. Dr. Karlson has been employed at Akzo Nobel Functional Chemicals since 1985. He is now holding a position as Manager for a research group dealing with product and process chemistry.