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Preparation method preparation device of photocuring high strength fiber for dental repair

A technology of high-strength fiber and dental restoration, which is applied in the field of preparation of materials for dental restoration, can solve problems such as inconvenient clinical operation, deviation of overall mechanical properties, and incompatibility of interface properties, so as to save raw materials and improve production efficiency , clear and reasonable layout

Active Publication Date: 2013-10-23
BEIJING UNIV OF CHEM TECH +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention provides a light-cured high-strength fiber for dental restoration in order to solve the technical problems of the overall mechanical property deviation, high cost and inconvenient clinical operation caused by the incompatibility of the interface properties of the composite materials in the prior art. Preparation method and molding device

Method used

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  • Preparation method preparation device of photocuring high strength fiber for dental repair
  • Preparation method preparation device of photocuring high strength fiber for dental repair
  • Preparation method preparation device of photocuring high strength fiber for dental repair

Examples

Experimental program
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Effect test

Embodiment 1

[0040] According to Bis-GMA (bisphenol A glycidyl methacrylate): TEGDMA (triethylene glycol dimethacrylate): CQ (camphorquinone): DMAEMA (dimethylaminoethyl methacrylate) mass fraction ratio For: 90:10:0.5:0.5 to configure the final photocurable resin system.

[0041] The multi-bundle glass fiber filaments enter the dehumidification furnace 2 through the wire rack 1 and the wire discharge hole of the wire collecting plate. The temperature of the furnace is 120°C, and the pulling speed is 0.5m / min. In the groove, be the PMMA acetone solution (molecular weight 200000g / mol) of 2% mass percentage composition, the glass fiber after dipping is through heating furnace 80 ℃ of heating evaporation acetone, the mass percentage composition that PMMA is adsorbed on the fiber after measuring is 0.3%, as in image 3 Shown; Then enter a dipping tank II, the tank is a light-curing resin system. After friction traction wheel I and friction traction wheel II, the prepreg is obtained under the...

Embodiment 2

[0043] According to embodiment 1, it is 5% to change the concentration of the PMMA acetone solution of the first dipping tank, and the mass percent composition that PMMA absorbs on the fiber is 0.9% after measuring, as Figure 4 shown. The temperature for evaporating the solvent is 80° C., and other operations are the same as in Example 1. According to the ISO10477 standard, the prepared prepreg samples were made into 2×2×25mm to test the flexural strength and flexural modulus. The measured flexural strength of the composite material is 546.3±60.3MPa, and the flexural modulus is 9.1±0.9GPa. Its interface combines as Figure 7 shown.

Embodiment 3

[0045] According to Bis-GMA (bisphenol A glycidyl methacrylate): polyethylene glycol dimethacrylate: CQ (camphorquinone): DMAEMA (dimethylaminoethyl methacrylate) mass fraction ratio: 80 : 20: 0.5: 0.5 configured as the final photocurable resin system.

[0046] A plurality of bundles of quartz fibers enter the dehumidification furnace 2 through the wire rack 1 and the wire discharge hole of the wire collecting plate. The furnace temperature is 100°C, and the pulling speed is 0.2m / min. In the groove, be the THF (tetrahydrofuran) solution (molecular weight 500000g / mol) of PLA (polylactic acid) that mass percentage is 10%. The fiber is heated in a heating furnace at 150°C to evaporate the solvent; then it enters the next dipping tank II, which contains a light-curing resin system. After friction traction wheel I and friction traction wheel II, the prepreg is obtained under the traction of traction wheel 10, all of the above operations are carried out in a dark room. According t...

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Abstract

The invention relates to a preparation method and a preparation method of photocuring high strength fiber for dental repair, and the method and the device are used for solving the technical problem that in the prior art, the composite material is poor in interface performance and mechanical property, high in cost and inconvenient to use. The preparation method comprises the following steps of: dissolving a high molecular polymer in an organic solvent to prepare a high molecular polymer liquor; soaking glass fiber or quartz fiber in the high molecular polymer liquor, and then, performing surface treatment by an evaporation solvent; finally, preparing the photocuring high strength fiber through a moulding process of a prepreg of the composite material by soaking the treated glass fiber or quartz fiber with a multi-component photocuring resin matrix. The preparation method and the preparation device can be widely applied to the field of dental repair.

Description

technical field [0001] The invention relates to a preparation method and a preparation device of a material for dental restoration, in particular to a preparation method and a preparation device of a light-cured high-strength fiber for dental restoration. Background technique [0002] Fiber-reinforced dental resin composites are increasingly used in dental restorations. Carbon fiber, glass fiber, quartz fiber, polyethylene fiber and various whiskers can be used to reinforce the dental resin matrix. Glass fiber or quartz fiber is the most widely used in dental composites because of its transparency, which does not affect the appearance, and exhibits excellent mechanical properties. [0003] However, due to the lack of active groups and structures in the matrix of dental resins, especially the inert macromolecular chains of photocurable resins, it is difficult to achieve complete infiltration between glass fibers or quartz fibers and photocurable resins, resulting in poor int...

Claims

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Application Information

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IPC IPC(8): A61K6/083C08J5/04C08K9/04C08K7/14C08K7/10
Inventor 周学刚杨小平邓旭亮蔡晴
Owner BEIJING UNIV OF CHEM TECH
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