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Resin permeable silicate composite material and preparation and application thereof

A composite material and resin infiltration technology, applied in dental preparations, dental prostheses, compression molding cups, etc., can solve the problems of transparency and other issues, and achieve the effects of easy control of process parameters, high transparency, and high bending strength

Inactive Publication Date: 2018-09-14
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology provides an improved type of composition that contains both organically bound or unbound filler particles with specific properties such as lightweightness, flexibility, durability against wear, etc., along with other materials like glass beads. These compositions also exhibit excellent opacifying qualities while maintain their clarity over longer periods of use compared to existing methods.

Problems solved by technology

The technical problem addressed by this patents relating to dentistry is how to improve prosthodesis materials while reducing costs associated with traditional techniques like casting metallurgery, lithography, and glass ionized acrylic acid cement. Current resin based composite materials lack flexural durability due to issues related to crack resistance during mastic treatment processes. Additionally, these new types require costly specialist training and involve multiple steps before achieving desired results.

Method used

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  • Resin permeable silicate composite material and preparation and application thereof
  • Resin permeable silicate composite material and preparation and application thereof
  • Resin permeable silicate composite material and preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] Weigh 20g of sodium aluminum silicate, put it into a ball mill jar, add alcohol and zirconia balls, and mill at a speed of 250r / min for 24 hours. The solid-liquid mixture after ball milling was poured into a container, and dried in an environment of 70°C to collect the powder. The powder was pressed into a green body with a molding machine, the pressure was 3 MPa, and the holding time was 3 minutes, and the green body was completely demolded. Put the pressed green body into the rubber film, use the vacuum pump to draw out the air in the rubber film, and seal it, and use the cold isostatic pressure with a pressure of 220MPa to treat the above green body, and the pressure holding time is 1.5min. The green body after cold isostatic pressing was taken out and sintered at 700°C with a heating rate of 11.7°C / min and a holding time of 2h to obtain a partially sintered porous ceramic block. Mix A component resin (bisphenol A bisglycidyl methacrylate and tetraethylene glycol di...

Embodiment 2

[0071]Weigh 20g of sodium aluminum silicate, put it into a ball mill jar, add alcohol and zirconia balls, and mill at a speed of 250r / min for 24 hours. The solid-liquid mixture after ball milling was poured into a container, and dried in an environment of 70°C to collect the powder. The powder was pressed into a green body with a molding machine, the pressure was 3 MPa, and the holding time was 3 minutes, and the green body was completely demolded. Put the pressed green body into the rubber film, use the vacuum pump to draw out the air in the rubber film, and seal it, and use the cold isostatic pressure with a pressure of 220MPa to treat the above green body, and the pressure holding time is 1.5min. The green body after cold isostatic pressing was taken out and sintered at 700°C with a heating rate of 11.7°C / min and a holding time of 2h to obtain a partially sintered porous ceramic block. Mix A component resin (bisphenol A bisglycidyl methacrylate and tetraethylene glycol dim...

Embodiment 3

[0076] Weigh 20g of sodium aluminum silicate, put it into a ball mill jar, add alcohol and zirconia balls, and mill at a speed of 250r / min for 24 hours. The solid-liquid mixture after ball milling was poured into a container, and dried in an environment of 70°C to collect the powder. The powder was pressed into a green body with a molding machine, the pressure was 3 MPa, and the holding time was 3 minutes, and the green body was completely demolded. Put the pressed green body into the rubber film, use the vacuum pump to draw out the air in the rubber film, and seal it, and use the cold isostatic pressure with a pressure of 220MPa to treat the above green body, and the pressure holding time is 1.5min. The green body after cold isostatic pressing was taken out and sintered at 700°C with a heating rate of 11.7°C / min and a holding time of 2h to obtain a partially sintered porous ceramic block. Mix A component resin (bisphenol A bisglycidyl methacrylate and tetraethylene glycol di...

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Abstract

The invention relates to a resin permeable silicate composite material and a preparation method thereof. The resin permeable silicate composite material is prepared by curing reaction of components including resin and glass phase silicate in existence of a curing agent, and the resin refers to component B resin or a mixture of component A resin and component B resin. According to the preparation method, resin permeation is assisted by means of isostatic cool pressing, closed pores generated in a sintering process of ceramic blocks are opened, high transparency of the prepared resin permeable silicate composite material is achieved, and great aesthetic performances are realized. In addition, the composite material is high in bending strength, bending strength reaches about 200MPa maximally,and visible light transmittance reaches 48.9% or above. The resin permeable silicate composite material has high development potential and promising market prospect in application to dental repair.

Description

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Claims

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Application Information

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Owner TSINGHUA UNIV
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