Method for preparing micro/nanocomposite photocurable resin

A light-curing resin and micro-nano composite technology, which is applied in dental preparations, pharmaceutical formulations, dental prostheses, etc., to achieve the effect of low cost and simple process

Inactive Publication Date: 2011-08-24
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is often reported in the literature and patents that propyltrimethoxysilane is used to modify the silica nanoparticles, while aminopropyltriethoxysilane and glycidyl

Method used

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  • Method for preparing micro/nanocomposite photocurable resin
  • Method for preparing micro/nanocomposite photocurable resin
  • Method for preparing micro/nanocomposite photocurable resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A kind of preparation method of micro-nano composite photocurable resin, it comprises the steps:

[0022] 1) Surface modification of nanoparticles, using silicon dioxide (SiO 2 ) Nanoparticles are used as nanofillers for dental restorative resins, introducing C=C double bond functional groups that can react with resin monomers through two-step modification:

[0023] ①According to silicon dioxide (SiO 2 ) The mass ratio of nanoparticles to absolute ethanol is 1:30, select absolute ethanol, press silicon dioxide (SiO 2 ) The mass ratio of nanoparticles and γ-aminopropyltriethoxysilane (APS) is 1: 5, and silicon dioxide nanoparticles and γ-aminopropyltriethoxysilane are selected; the silicon dioxide nanoparticles are dispersed In absolute ethanol, the suspension was obtained, and then transferred to the ultrasonic reactor, adding γ-aminopropyltriethoxysilane (APS), and ultrasonically induced the hydroxyl group of the silica nanoparticles in the suspension to react with t...

Embodiment 2

[0028] A kind of preparation method of micro-nano composite photocurable resin, it comprises the steps:

[0029] 1) Surface modification of nanoparticles, using silicon dioxide (SiO 2 ) Nanoparticles are used as nanofillers for dental restorative resins, introducing C=C double bond functional groups that can react with resin monomers through two-step modification:

[0030] ①According to silicon dioxide (SiO 2 ) The mass ratio of nanoparticles to absolute ethanol is 1:50, select absolute ethanol, press silicon dioxide (SiO 2 ) the mass ratio of nanoparticles and γ-aminopropyltriethoxysilane (APS) is 1: 10, select silicon dioxide nanoparticles and γ-aminopropyltriethoxysilane; the silicon dioxide nanoparticles are dispersed In absolute ethanol, the suspension was obtained, and then transferred to the ultrasonic reactor, adding γ-aminopropyltriethoxysilane (APS), and ultrasonically induced the hydroxyl group of the silica nanoparticles in the suspension to react with the γ- Am...

Embodiment 3

[0035] A kind of preparation method of micro-nano composite photocurable resin, it comprises the steps:

[0036] 1) Surface modification of nanoparticles, using silicon dioxide (SiO 2 ) Nanoparticles are used as nanofillers for dental restorative resins, introducing C=C double bond functional groups that can react with resin monomers through two-step modification:

[0037] ①According to silicon dioxide (SiO 2 ) The mass ratio of nanoparticles to absolute ethanol is 1:80, select absolute ethanol, press silicon dioxide (SiO 2 ) the mass ratio of nanoparticles and γ-aminopropyltriethoxysilane (APS) is 1: 15, select silicon dioxide nanoparticles and γ-aminopropyltriethoxysilane; the silicon dioxide nanoparticles are dispersed In absolute ethanol, the suspension was obtained, and then transferred to the ultrasonic reactor, adding γ-aminopropyltriethoxysilane (APS), and ultrasonically induced the hydroxyl group of the silica nanoparticles in the suspension to react with the γ- Am...

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Abstract

The invention relates to a method for preparing a micro/nanocomposite photocurable resin. The method for preparing the micro/nanocomposite photocurable resin is characterized by comprising the following steps of: 1) surface modification of nanoparticles, namely utilizing silicon dioxide nanoparticles as a nono-filler of a dental repair resin, and introducing a C=C double-bond functional group which can react with a resin monomer through two-step modification: (1) modifying by using gamma-aminopropyltriethoxysilane to introduce an amino group to the surfaces of the silicon dioxide nanoparticles, and (2) reacting the silicon dioxide nanoparticles with aminated surfaces and glycidyl methacrylate to introduce double bonds which can participate in a resin polymerization reaction to the surfaces of the nanoparticles; and 2) compounding of the modified nanoparticles, a resin and an initiator, namely adopting bisphenol A - glycidyl methacrylate and triethylene glycol dimethyl acrylate, introducing silicon barium glass powder serving as a microfiller and the modified nanoparticles, and adding a photoinitiator to obtain the micro/nanocomposite photocurable resin. The method has the characteristics of low cost and simple process.

Description

technical field [0001] The invention relates to a preparation method of a micro-nano composite photocurable resin, which belongs to the field of biomedical materials. Background technique [0002] As a kind of good reinforcing filler, silica particles are low in price and large in output, and are widely used as reinforcing agents for dental resin materials, natural rubber, plastics, and natural polymer materials. Among them, when silica particles are used to strengthen oral resin, the particle size gradually develops from micron to nanometer. nano-SiO 2 The advent of , provides a new way for the synthesis of dental resin matrix composites. nano-SiO 2 It is an amorphous white powder that deviates from a stable silicon-oxygen structure due to lack of oxygen on the surface. It is a non-toxic, odorless inorganic non-metallic material. Tests have shown that this material presents a granular structure, with unsaturated residual bonds and hydroxyl groups of different bonds and ...

Claims

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Application Information

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IPC IPC(8): C08F292/00C08K3/40A61K6/083A61K6/027
Inventor 黄进范东宽任红轩余家会黄行九
Owner WUHAN UNIV OF TECH
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