Ceramic nanotubes for polymer composites with stable anticorrosion properties

Abstract

The use of natural halloysite clay tubes 50 nm in diameter as nanocontainers for loading, storing, and slowly releasing organic corrosion inhibitors is described. Loaded nanotubes can be mixed well with many polymers and dyes in amounts of 5-10 wt % to form a ceramic framework (which increases the strength of halloysite composites by 30-50%), increase the adhesion of these coatings to metals, and allow for the slow release of corrosion inhibitors in defects of coatings. A significant improvement of protective anticorrosion properties of polyacryl and polyurethane coatings containing ceramic nanotubes loaded with benzotriazole and hydroxyquinoline is demonstrated.

Thermal and dynamic mechanical properties of beeswax-halloysite nanocomposites for consolidating waterlogged archaeological woods

“…Therefore, in case that beeswax/HNT mixture exhibits good qualities like consolidant, the encapsulation of antimicrobials, fungicides, antioxidant, and so on might allow its use as self-healing material that, under certain circumstances, kill and inhibit the growth of microorganisms responsible for the wood degradation processes. Within this potential application, currently used wooden structures might take benefices as reported for similar cases [32,33].…”

Halloysite in Different Ceramic Products: A Review

“…Four years later, Fakhrullin et al [ 80 ] prepared ceramic–polymer composites with anticorrosion inhibitor-loaded halloysite used as coatings for different alloys. They revealed that 5% halloysite in the polymer composites increased their mechanical properties (bending modulus, tensile strength) and resistance to ignition due to the new ceramic frame of halloysite tubes in the polymer matrix.…”

Синтез Наночастиц Серебра При Помощи Ультразвука И Галлуазита Для Создания Нанокомпозита С Антибактериальными Свойствами

“…Уникальной особенностью галлуазита является различие в химическом составе наружной и внутренней поверхности нанотрубок. Внутренняя поверхность галлуазита покрыта оксидом алюминия и имеет положительный поверхностный заряд, тогда как внешняя поверхность покрыта оксидом кремния, который имеет отрицательный заряд [17]. Благодаря этим физико-химическим свойствам нанотрубок галлуазита удалось показать возможность использования его в качестве катализатора реакции для получения наночастиц серебра из нитрата серебра.…”