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A dendritic porous sio 2 Base Composite Resin and Its Preparation and Application

A composite resin, dendritic technology, applied in dental preparations, mold cups, dental prostheses, etc., can solve the problems of poor mechanical properties of dental composite resins, and achieve improved mechanical properties, enhanced interfacial adhesion, and excellent performance. Effect

Active Publication Date: 2021-07-02
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a dendritic porous SiO 2 matrix composite resin and its preparation and application, overcome the traditional spherical SiO 2 Defects of poor mechanical properties of dental composite resins with inorganic fillers

Method used

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  • A dendritic porous sio <sub>2</sub> Base Composite Resin and Its Preparation and Application
  • A dendritic porous sio <sub>2</sub> Base Composite Resin and Its Preparation and Application
  • A dendritic porous sio <sub>2</sub> Base Composite Resin and Its Preparation and Application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] (1) Dendritic porous SiO 2 Granule preparation

[0039] 1.5ml of pentanol, 15ml of cyclohexane and 1.5ml of tetraethylorthosilicate TEOS were mixed and stirred to form a mixed solution, and then a mixed solution of 1g of CTAB, 0.2g of urea and 10g of water was added to the above mixed solution. Subsequently, the above-mentioned uniformly stirred mixed solution was poured into a polytetrafluoroethylene high-temperature and high-pressure hydrothermal kettle, and reacted at 130°C for 4 hours. After the reaction was completed, it was naturally cooled to room temperature, centrifuged, washed with acetone and deionized water, and then calcined at high temperature for a certain period of time to obtain Dendritic porous SiO with a particle size of 100 nm 2 Particles, SEM and TEM results were as figure 1 and 2 As shown by the SEM images, it can be concluded that the SiO 2 The particles have a uniform particle size, and the particle surface has a uniformly distributed pore s...

Embodiment 2

[0047] (1) Dendritic porous SiO 2 Granule preparation

[0048] 1.5ml of pentanol, 20ml of cyclohexane and 4.0ml of TEOS were mixed and stirred to form a mixed solution, then a mixed solution of 3g of CTAB, 0.6g of urea and 20g of water was added to the above mixed solution. The above-mentioned uniformly stirred mixed solution is poured into a polytetrafluoroethylene high-temperature and high-pressure hydrothermal kettle, and reacted at 130°C for 4 hours. After the reaction is completed, it is naturally cooled to room temperature, centrifuged, washed with acetone and deionized water, and then calcined at high temperature for a certain period of time to obtain the particle size 300nm dendritic porous SiO 2 particle.

[0049] (2) Preparation of composite resin

[0050] According to the formula shown in Table 2, the above-mentioned dendritic porous SiO 2 The particles, organic monomer and photoinitiator system are mixed. When the inorganic filler is fully wetted by the resin m...

Embodiment 3

[0057] (1) Dendritic porous SiO 2 Granule preparation

[0058] 1.5ml of pentanol, 30ml of cyclohexane and 2.5ml of tetraethylorthosilicate (TEOS) were mixed and stirred into a mixed solution, then a mixed solution of 1.8g of CTAB, 1g of urea and 30g of water was added to the above mixed solution. The above-mentioned uniformly stirred mixed solution is poured into a polytetrafluoroethylene high-temperature and high-pressure hydrothermal kettle, and reacted at 130°C for 4 hours. After the reaction is completed, it is naturally cooled to room temperature, centrifuged, washed with acetone and deionized water, and then calcined at high temperature for a certain period of time to obtain the particle size 500nm dendritic porous SiO 2 particle.

[0059] (2) Preparation of composite resin

[0060] According to the formula shown in Table 3, the above-mentioned dendritic porous SiO with a particle size of 500 nm was firstly mixed by hand 2 The particles, organic monomer and photoinit...

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Abstract

The invention relates to a dendritic porous SiO 2 Matrix composite resin and its preparation and application, including the following components in mass percentage: dendritic porous SiO 2 19-60% by weight of inorganic filler, 39-80% by weight of resin matrix and 0.2-1% by weight of photoinitiator system, the sum of the mass percentages of each component is 100%. The preparation method includes: (1) preparation of dendritic porous SiO 2 Inorganic filler; (2) Dendritic porous SiO 2 The inorganic filler, the resin matrix and the photoinitiator system are uniformly mixed to obtain an uncured composite resin paste, which is further cured by light. The method of the invention is simple to operate and can prepare dendritic porous SiO with controllable particle size 2 , can effectively improve the mechanical properties of dental restoration resin.

Description

technical field [0001] The invention belongs to the technical field of dental restoration materials, in particular to a dendritic porous SiO 2 Composite resins and their preparation and applications. Background technique [0002] Caries is one of the common and frequently-occurring diseases of the oral cavity. It is mainly a disease of chronic and progressive destruction of dental hard tissues under the influence of various factors mainly based on bacteria. Dental dental caries incidence rate is high, and distribution is wide, and the World Health Organization (WHO) has listed it as one of the three major non-communicable diseases that need to be mainly prevented and controlled in the 21st century after cardiovascular disease and cancer. If the prevention and treatment is not proper, other diseases such as arthritis, pericarditis, chronic nephritis and various eye diseases will be caused, which will seriously affect the physical and mental health of human beings. Dental co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K6/887A61K6/76A61K6/62A61K6/15C08F220/32C08F222/20
Inventor 朱美芳陈红艳王瑞莉钱力刘红梅范家辉
Owner DONGHUA UNIV
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