作者
Hafeez Ullah, Khurram Shehzad Qureshi, Usama Khan, Maryam Zaffar, Yap Jen Yang, Nurul Ekmi Rabat, Muhammad Irfan Khan, Sidra Saqib, Ahmad Mukhtar, Sami Ullah, Muhammad Mubashir, Awais Bokhari, Wai Siong Chai, Kit Wayne Chew, Pau Loke Show
发表日期
2021/12/1
期刊
Chemosphere
卷号
285
页码范围
131492
出版商
Pergamon
简介
The restoration of mechanical properties is desired for creating the self-healing coatings with no corrosion capabilities. The encapsulation of epoxy resins is limited by various factors in urea and melamine formaldehyde microcapsules. An improved method was developed, where epoxy resin was encapsulated by individual wrapping of poly(melamine-formaldehyde) and poly(urea-formaldehyde) shell around emulsified epoxy droplets via oil-in-water emulsion polymerization method. The synthesized materials were characterized analytically. The curing of the epoxy was achieved by adding the [Ni/Co(2-MI)6].2NO3 as a latent hardener and iron acetylacetonate [Fe(acac)3] as a latent accelerator. Isothermal and non-isothermal differential scanning calorimetric analysis revealed lower curing temperature (Tonset = 116 °C) and lower activation energies (Ea ≈ 69–75 kJ/mol). The addition of microcapsules and …
引用总数
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