Changes in compatibility, tack and viscoelastic properties of ethylene n-butyl acrylate (EBA) copolymer–pentaerythritol rosin ester blend by adding microcrystalline wax, Fischer–Tropsch wax and mixture of waxes

Abstract

Changes in compatibility, tack and viscoelastic properties of ethylene n-butyl acrylate (EBA) copolymer-pentaerythritol rosin ester blend by adding microcrystalline wax, Fischer-Tropsch wax and mixture of waxes, International Journal of Adhesion and Adhesives, http://dx.doi.org/10.1016/j.ijadhadh.2015.11.007 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting galley proof before it is published in its final citable form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. AbstractEthylene n-butyl acrylate copolymer (EBA) instead of ethylene vinyl acetate copolymer (EVA) can be used as the base polymer for hot melts. The lower polarity of EBA should affect differently the compatibility with the wax and the tackifier as compared to EVA. In this study the compatibility, tack and viscoelastic properties of EBA copolymer-pentaerythritol rosin ester blended with waxes of different nature (Fischer-Tropsch and microcrystalline) and in different amounts were studied.An increase in compatibility of EBA-copolymer blend with microcrystalline wax was produced leading to increased tack and open time, and reduced viscosity.In contrast, the addition of Fischer-Tropsch wax decreased the compatibility and tack of the EBA-copolymer blend. The addition of a mixture of microcrystalline and Fischer-Tropsch wax caused a better balance in the rheological properties and thermal stability of the EBA-copolymer blends. Finally, an increase in the wax mixture content produced a complete removal of tack caused by dilution of the tackifier in the polymer blend rather than by differences in compatibility.

New Binary Blends of Ethylene-co-n-butyl Acrylate (EBA) Copolymer and Low Molecular Weight Rosin Ester Resin with Potential as Pressure Sensitive Adhesives

“…DMA has been demonstrated to be useful [ 13 ] for analyzing the compatibility of the EBA copolymer + resin blends. Figure 7 shows the variation of tan delta (=E″/E′) as a function of the temperature for the EBA copolymer and EBA copolymer + ECH resin blends.…”

“…Liedermooy [ 12 ] has prepared blends of EBA copolymer, terpene-phenolic resin, and Fischer–Tropsch wax for improving adhesion at low temperature. Furthermore, Moyano et al [ 13 ] have studied the rheological, thermal, and adhesion properties of blends of EBA copolymer, low molecular weight resins, and different waxes, and they found better compatibility and higher tack (i.e., immediate adhesion) for EBA-resin binary blend with microcrystalline wax compared with Fischer–Tropsch wax. The use of EBA, EVA (ethylene-co-vinyl acetate), and EMA, as well as blends of these copolymers with low density polyethylene and inorganic fillers to prepare PSA tapes, has been proposed with the aim of avoiding the plasticizer migration [ 14 , 15 ].…”

Advances in Rosin-Based Chemicals: The Latest Recipes, Applications and Future Trends

“…The review contains short, but exhaustive descriptions of rosin-derived compound syntheses published in the scientific literature from the JCR list since 2008. It does not include older achievements in the field of rosin, that were widely described in previous review literature [1,65] and commercialized [66,67,68,69,70,71,72,73,74,75,76,77,78,79,80]. It includes preparations of completely new chemicals, as well as new ways to synthesize already known compounds.…”

Bentonit Nanokilinin Elastomerik ve Plastomerik Polimer Modifiye Bitümlerin Depolama Stabiliteleri Üzerindeki Etkisi

“…EBA daha düşük bir yoğunluğa, kopma uzamasına ve çekme mukavemetine sahiptir ve daha uzun bir hidrokarbon zincir grubunun (C4'e karşı C2) ve asetat grubu yerine akrilat grubunun varlığından dolayı EVA'dan biraz daha az polardır. Bu nedenle, EBA'nın vaks ve bağlayıcılarla olan uyumu EVA'nınkine göre farklılık gösterebilir [26]. Şekil 4'te EVA ve EBA kopolimerlerinin kimyasal yapılarındaki farklılık gösterilmiştir.…”

“…Şekil 4'te EVA ve EBA kopolimerlerinin kimyasal yapılarındaki farklılık gösterilmiştir. [26] SBS ve SEBS elastomerik polimerlerin depolama stabilitelerinin araştırıldığı bir çalışmada katkı maddeleri %2, %4 ve %6 oranlarında bitüme ilave edilmiş, depolama stabilitesi deneyi uygulandıktan sonra yumuşama noktası, dönel viskozite, dinamik kayma reometresi ile değerlendirme yapılmıştır.…”