Zeynep Mert Ayalp
Solution Partner, Organik Kimya
Zeynep Mert Ayalp is currently working as an Solution Partner for Hotmelt Adhesives at Organik Kimya since 2022. She is responsible for formulation design, raw material evaluation, and cost optimization, and leads technical collaborations with suppliers. She also supports domestic and international customers through application development and on-site technical service.
Prior to joining Organik Kimya, Zeynep worked as a research associate at The Scientific and Technological Research Council of Türkiye (TÜBİTAK) from 2019 to 2022. Based on this work, she obtained a Master’s degree in Chemistry from Istanbul Technical University, Türkiye.
EVA Hotmelt Adhesives for Low-Grammage and Fast-Cooling Air Filter Applications
Hotmelt adhesives are widely used in air filtration applications, where they play a critical role in ensuring structural integrity and process efficiency during filter manufacturing. In particular, EVA-based systems are widely used for pleat stabilization to fix and maintain the filter media geometry.
A key challenge in this application is achieving fast cooling behavior and reduced adhesive consumption without compromising substrate wetting and mechanical performance. While lower coat weights are essential for sustainability and cost efficiency, they can negatively affect bonding stability. In addition, increased cooling air intensity using line fans is commonly applied to support higher production speeds but may result in premature solidification and insufficient wetting.
Polyolefin (PO)-based hotmelt adhesives are often used for their lower density and reduced grammage. However, further reduction without compromising performance remains challenging. In this work, a modified EVA-based system achieves comparable low-grammage levels while maintaining adhesion and elasticity.
The formulation, based on a tailored hydrocarbon resin, wax, and polymer system, was designed to improve cooling behavior and reduce adhesive consumption. The influence of formulation design on process behavior and final performance is evaluated under application-relevant conditions, providing insights into more efficient and sustainable adhesive solutions for air filtration.
The relationship between formulation, process parameters, and performance is discussed, providing insights into more efficient and sustainable adhesive solutions for air filtration applications.
Breakout Session VII – Advanced Hot Melt Technologies for Assembly – 17 September 2026 – 12:00 – 12:30 – Room Churchill – GF