A natural antioxidant, quercetin, was adsorbed on the surface of halloysite nanotubes in various amounts to prepare a controlled release device. The combined additive was added to polyethylene providing antioxidant levels of 250, 500, 750 and 1000 ppm. All polymer samples contained 1000 ppm Sandostab PEPQ phosphonite secondary antioxidant as well. The stabilizing efficiency of quercetin was determined in processing experiments and by accelerated ageing. Quercetin proved to be a very efficient stabilizer of polyethylene. The use of the halloysite nanotube support resulted in more homogeneous dispersion and facilitated the dissolution of the compound in the polymer. Because of the high energy of halloysite surface, the stabilizer adhered to it very strongly and did not dissolve in polyethylene below a critical concentration. The melt stabilization efficiency of quercetin did not decrease in the presence of the halloysite support. The efficiency of long term stabilization decreased somewhat, but halloysite nanotubes pretreated with the stabilizer possessed a controlled release function, ageing was slower in their presence than with separately dispersed components or in the absence of the halloysite.

将天然抗氧化剂槲皮素以各种量吸附在埃洛石纳米管的表面上，以制备控释装置。将合并的添加剂添加到聚乙烯中，以提供250、500、750和1000 ppm的抗氧化剂水平。所有聚合物样品还包含1000 ppm Sandostab PEPQ亚膦酸酯次要抗氧化剂。在加工实验中并通过加速老化来确定槲皮素的稳定效率。槲皮素被证明是一种非常有效的聚乙烯稳定剂。埃洛石纳米管载体的使用导致更均匀的分散并促进化合物在聚合物中的溶解。由于埃洛石表面的能量很高，因此稳定剂非常牢固地粘附在其上，并且在低于临界浓度的情况下不溶于聚乙烯。在埃洛石载体的存在下槲皮素的熔体稳定效率不会降低。长期稳定的效率有所降低，但是用稳定剂预处理的埃洛石纳米管具有控释功能，与单独分散的组分或不存在埃洛石相比，其存在时老化较慢。