Method for preparing fluorine-silica rubber artificial tooth soft lining material

A technology of fluorosilicone rubber and soft lining, applied in dental preparations, pharmaceutical formulas, dental prostheses, etc., can solve the problems of lagging development of soft lining materials, products with excellent comprehensive performance, etc., achieve easy availability of raw materials and low price, and reduce water absorption , Reasonable effect of preparation line

Inactive Publication Date: 2008-04-30
TONGJI UNIV
View PDF0 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] At present, the development of foreign soft lining materials is relatively lagging behind. The foreign soft lining materials are mainly silicone rubber and plasticized acrylic materials. There are many brands of products, but each has its own advantages and disadvantages. There is no one with excellent comprehensive performance. The product
Domestic market soft lining materials are still blank

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for preparing fluorine-silica rubber artificial tooth soft lining material
  • Method for preparing fluorine-silica rubber artificial tooth soft lining material
  • Method for preparing fluorine-silica rubber artificial tooth soft lining material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] 1. Acrylic mixed monomer modified silicone rubber:

[0036] Mix 100ml of toluene and vinyl acetate 1:1 mixed solvent with 100ml of hydroxy silicone oil, then put 28ml of butyl acrylate, 8ml of methyl methacrylate, 2ml of methacrylic acid, and 2ml of β-hydroxypropyl acrylate into the dropping funnel Mix evenly in the medium, and put it on a three-neck flask equipped with an electric stirrer, a condenser, and a thermometer, heat it in a water bath, and feed it with N 2 Protection; when the temperature of the mixed solution reaches 70°C, add 1g of refined azobisisobutyronitrile and 1g of p-toluenesulfonic acid, start to add acrylic mixed monomers dropwise, and the polymerization reaction is carried out at about 70°C; acrylic mixed monomers After the dropwise addition is complete, add 100ml of toluene and vinyl acetate 1:1 mixed solvent, add dropwise and react for 3 hours to obtain the modified silicone oil.

[0037] 2. Co-vulcanization of fluorosilicone rubber and modifie...

Embodiment 2

[0043] 1. Acrylic mixed monomer modified silicone rubber:

[0044]Mix 150ml of xylene and butyl acetate 1:1 mixed solvent with 100ml of hydroxy silicone oil, then put 28ml of butyl acrylate, 8ml of methyl methacrylate, 2ml of methacrylic acid, and 2ml of β-hydroxypropyl acrylate into the drop Mix evenly in the funnel, and put it on the three-necked flask equipped with electric stirrer, condenser, and thermometer, heat it in a water bath, and feed it with N 2 protection; when the temperature of the mixed solution reaches 50°C, add 2g of refined azobisisobutyronitrile, start to add the acrylic mixed monomer dropwise, and the polymerization reaction is carried out at about 50°C; Add 150ml of toluene and vinyl acetate 1:1 mixed solvent, add dropwise and react for 5h to obtain modified silicone oil.

[0045] 2. Co-vulcanization of fluorosilicone rubber and modified silicone rubber:

[0046] Add 5ml of modified silicone oil to 100ml of unmodified hydroxysilicone oil, add 10ml of m...

Embodiment 3

[0051] 1. Acrylic mixed monomer modified silicone rubber:

[0052] Mix 100ml of toluene and butyl acetate 1:1 mixed solvent with 100ml of hydroxy silicone oil, then put 20ml of butyl acrylate, 6ml of methyl methacrylate, 4ml of methacrylic acid, and 4ml of β-hydroxypropyl acrylate into the dropping funnel Mix evenly in the medium, and put it on a three-neck flask equipped with an electric stirrer, a condenser, and a thermometer, heat it in a water bath, and feed it with N 2 Protection; when the temperature of the mixed solution reaches 60°C, add 1g of refined azobisisobutyronitrile and 1g of p-toluenesulfonic acid, start to add dropwise acrylic mixed monomer, and the polymerization reaction is carried out at about 60°C; acrylic mixed monomer After the dropwise addition is complete, add 100ml of toluene and butyl acetate 1:1 mixed solvent, add dropwise and react for 2 hours to obtain the modified silicone oil.

[0053] 2. Co-vulcanization of fluorosilicone rubber and modified ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
tensile strengthaaaaaaaaaa
tensile strengthaaaaaaaaaa
tensile strengthaaaaaaaaaa
Login to view more

Abstract

The invention belongs to the technology field of biological medical high polymer materials, and concretely relates to a process for preparing soft lining material of fluorosilicone rubber false toot. The concrete steps comprise charging modified silicone oil which is made from acrylic mixing monomer to nonmonomerd hydroxyl silicone oil, and charging silane cross linking agent, ethylene glycol dimethacrylate, and white carbon black, by which modified silicone oil with a certain degree of polymerization and cross linking is made, charging the fluorosilicone rubber on the sealing end of the hydroxyl group, by which the fluorosilicone rubber is made. The silicon sulfide rubber with the room temperature is made by the mixing and reaction of the two kinds of rubber. The invention has the advantages of reasonable preparing line, easily available raw materials, relatively low cost, simple synthetic technology and has significant values of popularizing and using.

Description

technical field [0001] The invention belongs to the technical field of biomedical polymer materials, and in particular relates to a preparation method of a fluorosilicone rubber denture soft lining material. Background technique [0002] Oral biomaterials are a major branch of biomaterials and an important part of biomedical materials. Denture soft lining material is an integral part of oral biomaterials, also known as elastic denture lining material. [0003] The research on denture soft lining materials started relatively early. In the early 1940s, with the beginning of the application of acrylic plastics in dental restorations, people began to think of using soft plastics to make bases or rubber pads on the tissue surface of hard plastic bases, so that patients may be more comfortable after wearing dentures. In 1945, Matthews used plasticized polyvinyl chloride gel for the first time, but it was eliminated due to the shortcomings of curing temperature as high as 160°C a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): A61K6/087C08L83/04C08F283/12C08J3/24C08K9/00C08K3/36A61K6/891
Inventor 许乾慰陈丽丽王国建商伟辉
Owner TONGJI UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap