23 Jul Preparation method of bioglass fiber reinforced hydroxyapatite porous composite material
Abstract
The invention discloses a preparation method of a bioglass fiber reinforced hydroxyapatite porous composite material. The preparation method is characterized by comprising the following steps: silicon dioxide, calcium oxide, sodium carbonate, phosphorus pentoxide and the like are used as raw materials for preparing bioglass fibers; calcium nitrate, diammonium hydrogen phosphate, ammonium hydroxide and the like are used as raw materials for preparing hydroxyapatite; the bioglass fibers and the hydroxyapatite are mixed with each other, are reacted with an ethylene glycol solution, a methyl cellulose solution and a hydrogen peroxide solution, and are subjected to the microwave-assisted pore forming and the drying to prepare a porous composite material blank; the normal-pressure sintering is implemented to prepare the bioglass fiber reinforced hydroxyapatite porous composite material. The porous composite material prepared by the invention has the characteristic of adopting a penetrating pore structure for providing an excellent microenvironment for growth of bone tissues, supply of oxygen and nutritive substances and loading and release of genes and medicines, has an excellent biological activity and a mechanical property, and can be used as an excellent human body bone repairing material and a bone tissue engineering bracket material.
Year: 2014
Country: CN
Doc No: 103585672