Scratch resistant tough nanocomposite epoxy coatings based on hyperbranched polyesters

M. Sangermano; M. Messori; M. Martin Galleco; G. Rizza; B. Voit

doi:10.1016/j.polymer.2009.10.009

Scratch resistant tough nanocomposite epoxy coatings based on hyperbranched polyesters

M. Sangermano
, M. Messori
, M. Martin Galleco
, G. Rizza
, B. Voit

Research output: Contribution to journal › Article › peer-review

Abstract

Advanced multifunctional coatings were prepared by UV curing of epoxy based formulations containing hyperbranched polymers (HBP) and an epoxy functionalized alkoxysilane additive. The addition of HBP to the UV curable epoxy resin induced an important flexibilization of the glassy epoxy network with an increase in toughness of the cured polymeric coatings. Adding the functionalized alkoxysilane into the UV curable formulations, as inorganic precursor of silica phase, an improvement on surface hardness was obtained without strongly affecting the flexibilization and the toughness achieved by the addition of the HBP additive. The increase on surface hardness was accompanied with an increase in scratch resistance and modulus. Advanced scratch resistant and tough nanocomposite epoxy coatings were obtained by properly selecting the components of the formulation.

Original language	English
Pages (from-to)	5647-5652
Number of pages	6
Journal	Polymer
Volume	50
Issue number	24
DOIs	https://doi.org/10.1016/j.polymer.2009.10.009
Publication status	Published - 16 Nov 2009

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title = "Scratch resistant tough nanocomposite epoxy coatings based on hyperbranched polyesters",

abstract = "Advanced multifunctional coatings were prepared by UV curing of epoxy based formulations containing hyperbranched polymers (HBP) and an epoxy functionalized alkoxysilane additive. The addition of HBP to the UV curable epoxy resin induced an important flexibilization of the glassy epoxy network with an increase in toughness of the cured polymeric coatings. Adding the functionalized alkoxysilane into the UV curable formulations, as inorganic precursor of silica phase, an improvement on surface hardness was obtained without strongly affecting the flexibilization and the toughness achieved by the addition of the HBP additive. The increase on surface hardness was accompanied with an increase in scratch resistance and modulus. Advanced scratch resistant and tough nanocomposite epoxy coatings were obtained by properly selecting the components of the formulation.",

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T1 - Scratch resistant tough nanocomposite epoxy coatings based on hyperbranched polyesters

AU - Sangermano, M.

AU - Messori, M.

AU - Galleco, M. Martin

AU - Rizza, G.

AU - Voit, B.

PY - 2009/11/16

Y1 - 2009/11/16

N2 - Advanced multifunctional coatings were prepared by UV curing of epoxy based formulations containing hyperbranched polymers (HBP) and an epoxy functionalized alkoxysilane additive. The addition of HBP to the UV curable epoxy resin induced an important flexibilization of the glassy epoxy network with an increase in toughness of the cured polymeric coatings. Adding the functionalized alkoxysilane into the UV curable formulations, as inorganic precursor of silica phase, an improvement on surface hardness was obtained without strongly affecting the flexibilization and the toughness achieved by the addition of the HBP additive. The increase on surface hardness was accompanied with an increase in scratch resistance and modulus. Advanced scratch resistant and tough nanocomposite epoxy coatings were obtained by properly selecting the components of the formulation.

AB - Advanced multifunctional coatings were prepared by UV curing of epoxy based formulations containing hyperbranched polymers (HBP) and an epoxy functionalized alkoxysilane additive. The addition of HBP to the UV curable epoxy resin induced an important flexibilization of the glassy epoxy network with an increase in toughness of the cured polymeric coatings. Adding the functionalized alkoxysilane into the UV curable formulations, as inorganic precursor of silica phase, an improvement on surface hardness was obtained without strongly affecting the flexibilization and the toughness achieved by the addition of the HBP additive. The increase on surface hardness was accompanied with an increase in scratch resistance and modulus. Advanced scratch resistant and tough nanocomposite epoxy coatings were obtained by properly selecting the components of the formulation.

U2 - 10.1016/j.polymer.2009.10.009

DO - 10.1016/j.polymer.2009.10.009

M3 - Article

AN - SCOPUS:70449133709

SN - 0032-3861

VL - 50

SP - 5647

EP - 5652

JO - Polymer

JF - Polymer

IS - 24

ER -

Scratch resistant tough nanocomposite epoxy coatings based on hyperbranched polyesters

Abstract

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