Modification and Preparation of Durable Hydrophobic Epoxy Resin
Epoxy resin is a commonly used coating protection material,and a large number of studies have used micro and nano particles to blend with epoxy to obtain superhydrophobic coatings,wich have functions such as anti fouling,waterproofing,and anti-icing.However,the hydrophilic properties of epoxy limit the im-provement of hydrophobicity,and hydrophobically modified epoxy typically accompanies a loss of mechanical and chemical properties.This article uses amino functional polysiloxane and hydroxyl terminated fluorosilane to modify epoxy resin,and studies the influence of different modifiers on the performance of epoxy systems.The results show that hydroxyl terminated fluorosilane(CA=113.5 °,SA=9 °)can significantly improve the hy-drophobic properties of epoxy compared to amino functional polysiloxane(CA=102.3 °,SA=10 °).Howev-er,the epoxy coating modified by the latter has a greater degree of retention or even improvement in terms of heat resistance(102.3%),hardness(100%),adhesive strength(114.0%),and water absorption rate sig-nificantly reduced(53.5%).
NETL
NSTL
万方数据
维普
