CN113413320A - High-strength medical resin - Google Patents
High-strength medical resin Download PDFInfo
- Publication number
- CN113413320A CN113413320A CN202110730823.XA CN202110730823A CN113413320A CN 113413320 A CN113413320 A CN 113413320A CN 202110730823 A CN202110730823 A CN 202110730823A CN 113413320 A CN113413320 A CN 113413320A
- Authority
- CN
- China
- Prior art keywords
- propylene
- medical
- ethylene copolymer
- silica gel
- calcium carbonate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K6/00—Preparations for dentistry
- A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
- A61K6/884—Preparations for artificial teeth, for filling teeth or for capping teeth comprising natural or synthetic resins
- A61K6/887—Compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K6/00—Preparations for dentistry
- A61K6/15—Compositions characterised by their physical properties
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K6/00—Preparations for dentistry
- A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K6/00—Preparations for dentistry
- A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
- A61K6/802—Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K6/00—Preparations for dentistry
- A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
- A61K6/831—Preparations for artificial teeth, for filling teeth or for capping teeth comprising non-metallic elements or compounds thereof, e.g. carbon
Abstract
The invention discloses a high-strength medical resin, and belongs to the technical field of high polymer materials. It comprises the following components: medical silica gel, propylene-ethylene copolymer, isooctanoic acid, alumina, calcium carbonate and potassium metabisulfite; the weight ratio of the medical silica gel, the propylene-ethylene copolymer, the isooctanoic acid, the alumina, the calcium carbonate and the potassium metabisulfite is (80-100): (120-150): (10-25): (2-10): (2-6): (2-5); the preparation method comprises the following steps: preparing a reaction kettle, adding medical silica gel, propylene-ethylene copolymer, isooctanoic acid, aluminum oxide, calcium carbonate and potassium metabisulfite, heating to 180 ℃, then vacuumizing, mixing and stirring for 60min, and finally feeding into a double-screw extruder for processing. It can effectively improve the strength effect and meet the requirement of dental restoration materials.
Description
Technical Field
The invention belongs to the technical field of high polymer materials, and particularly relates to high-strength medical resin.
Background
The composite material made of resin and inorganic filler not only has strength, hardness, wear resistance, polishing activity, color and other aspects similar to those of real teeth, but also can be endowed with various functions such as fluorine release function, photochromic diagnosis function, light transmission and scattering performance similar to those of real teeth, and is increasingly and widely applied to the repair and reconstruction of teeth. It is expected that the resin composite material will replace traditional inorganic and metal materials comprehensively due to the comprehensive advantages of beauty and performance. The resin composite material has a fatal weak point, namely, the material undergoes volume shrinkage during polymerization and polymerization stress caused by the volume shrinkage. If the bonding surface is unable to withstand this stress, a shrinkage gap of about 2 to 10 μm is produced, resulting in secondary caries and induction of hypersensitive dental disease.
Disclosure of Invention
Problems to be solved
Aiming at the problems in the prior art, the invention provides a high-strength medical resin which can effectively improve the strength effect and meet the requirements of dental restorative materials.
Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A high-strength medical resin comprises the following components:
medical silica gel, propylene-ethylene copolymer, isooctanoic acid, alumina, calcium carbonate and potassium metabisulfite;
the weight ratio of the medical silica gel, the propylene-ethylene copolymer, the isooctanoic acid, the alumina, the calcium carbonate and the potassium metabisulfite is (80-100): (120-150): (10-25): (2-10): (2-6): (2-5).
The high-strength medical resin comprises the following components:
medical silica gel, propylene-ethylene copolymer, isooctanoic acid, alumina, calcium carbonate and potassium metabisulfite;
the weight ratio of the medical silica gel, the propylene-ethylene copolymer, the isooctanoic acid, the alumina, the calcium carbonate and the potassium metabisulfite is (85-95): (130-140): (15-20): (2-10): (2-6): (2-5).
The high-strength medical resin comprises the following components:
medical silica gel, propylene-ethylene copolymer, isooctanoic acid, alumina, calcium carbonate and potassium metabisulfite;
the weight ratio of the medical silica gel, the propylene-ethylene copolymer, the isooctanoic acid, the alumina, the calcium carbonate and the potassium metabisulfite is 90: 135: 18: 6: 4: 5.
in the high-strength medical resin, the medical silica gel is purchased from silicone company, cheng of Changshan city, and has a CAS (CAS) registration number of 112926-00-8.
In the high-strength medical resin, the propylene-ethylene copolymer is purchased from Rumant plastics, Inc., of Dongguan city, and the brand is Rumant, and the type number of the propylene-ethylene copolymer is DF-710.
In the high-strength medical resin, the average grain diameter of the alumina is 0.2 mm;
the average grain diameter of the calcium carbonate is 0.1 mm;
the average grain size of the potassium metabisulfite is 0.2 mm.
Among the high-strength medical resins, isooctanoic acid was purchased from Xin chemical Co., Ltd, Shandong.
Among the above high-strength medical resins, the preparation method of the high-strength medical resin is as follows:
preparing a reaction kettle, adding medical silica gel, propylene-ethylene copolymer, isooctanoic acid, aluminum oxide, calcium carbonate and potassium metabisulfite, heating to 180 ℃, then vacuumizing, mixing and stirring for 60min, and finally feeding into a double-screw extruder for processing.
In the high-strength medical resin, the rotating speed of a double-screw extruder is 300 r/min.
In the high-strength medical resin, the temperatures of the front part, the middle part, the rear part and the machine head of a charging barrel of the double-screw extruder are respectively as follows: 220 deg.C, 225 deg.C, 230 deg.C.
Has the beneficial effects of
Compared with the prior art, the invention has the beneficial effects that:
in the application, the addition of the propylene-ethylene copolymer has a remarkable effect on improving the strength of the medical resin, and the addition of the isooctanoic acid plays a critical role and can enhance the three-dimensional network structure of the medical resin; in addition, the addition of alumina and the like also plays a role, and the strength index is also influenced by the weight ratio of medical silica gel, propylene-ethylene copolymer, isooctanoic acid, alumina, calcium carbonate and potassium metabisulfite. In general, the strength of the medical resin can be effectively improved, and the medical resin is suitable for the field of dental restoration.
Detailed Description
The invention is further described with reference to specific examples.
Example 1
The high-strength medical resin comprises the following components:
medical silica gel, propylene-ethylene copolymer, isooctanoic acid, alumina, calcium carbonate and potassium metabisulfite;
the weight ratio of the medical silica gel, the propylene-ethylene copolymer, the isooctanoic acid, the alumina, the calcium carbonate and the potassium metabisulfite is 80: (150:10:10:2:5.
In the high-strength medical resin, the medical silica gel is purchased from silicone company, cheng of Changshan city, and has a CAS (CAS) registration number of 112926-00-8.
In the high-strength medical resin, the propylene-ethylene copolymer is purchased from Rumant plastics, Inc., of Dongguan city, and the brand is Rumant, and the type number of the propylene-ethylene copolymer is DF-710.
In the high-strength medical resin, the average grain diameter of the alumina is 0.2 mm;
the average grain diameter of the calcium carbonate is 0.1 mm;
the average grain size of the potassium metabisulfite is 0.2 mm.
Among the high-strength medical resins, isooctanoic acid was purchased from Xin chemical Co., Ltd, Shandong.
Among the above high-strength medical resins, the preparation method of the high-strength medical resin is as follows:
preparing a reaction kettle, adding medical silica gel, propylene-ethylene copolymer, isooctanoic acid, aluminum oxide, calcium carbonate and potassium metabisulfite, heating to 180 ℃, then vacuumizing, mixing and stirring for 60min, and finally feeding into a double-screw extruder for processing.
In the high-strength medical resin, the rotating speed of a double-screw extruder is 300 r/min.
In the high-strength medical resin, the temperatures of the front part, the middle part, the rear part and the machine head of a charging barrel of the double-screw extruder are respectively as follows: 220 deg.C, 225 deg.C, 230 deg.C.
Example 2
The high-strength medical resin comprises the following components:
medical silica gel, propylene-ethylene copolymer, isooctanoic acid, alumina, calcium carbonate and potassium metabisulfite;
the weight ratio of the medical silica gel, the propylene-ethylene copolymer, the isooctanoic acid, the alumina, the calcium carbonate and the potassium metabisulfite is 100: 120: 25: 2: 6: 2.
in the high-strength medical resin, the medical silica gel is purchased from silicone company, cheng of Changshan city, and has a CAS (CAS) registration number of 112926-00-8.
In the high-strength medical resin, the propylene-ethylene copolymer is purchased from Rumant plastics, Inc., of Dongguan city, and the brand is Rumant, and the type number of the propylene-ethylene copolymer is DF-710.
In the high-strength medical resin, the average grain diameter of the alumina is 0.2 mm;
the average grain diameter of the calcium carbonate is 0.1 mm;
the average grain size of the potassium metabisulfite is 0.2 mm.
Among the high-strength medical resins, isooctanoic acid was purchased from Xin chemical Co., Ltd, Shandong.
Among the above high-strength medical resins, the preparation method of the high-strength medical resin is as follows:
preparing a reaction kettle, adding medical silica gel, propylene-ethylene copolymer, isooctanoic acid, aluminum oxide, calcium carbonate and potassium metabisulfite, heating to 180 ℃, then vacuumizing, mixing and stirring for 60min, and finally feeding into a double-screw extruder for processing.
In the high-strength medical resin, the rotating speed of a double-screw extruder is 300 r/min.
In the high-strength medical resin, the temperatures of the front part, the middle part, the rear part and the machine head of a charging barrel of the double-screw extruder are respectively as follows: 220 deg.C, 225 deg.C, 230 deg.C.
Example 3
The high-strength medical resin comprises the following components:
medical silica gel, propylene-ethylene copolymer, isooctanoic acid, alumina, calcium carbonate and potassium metabisulfite;
the weight ratio of the medical silica gel, the propylene-ethylene copolymer, the isooctanoic acid, the alumina, the calcium carbonate and the potassium metabisulfite is 85: 140: 15: 10: 2: 5.
in the high-strength medical resin, the medical silica gel is purchased from silicone company, cheng of Changshan city, and has a CAS (CAS) registration number of 112926-00-8.
In the high-strength medical resin, the propylene-ethylene copolymer is purchased from Rumant plastics, Inc., of Dongguan city, and the brand is Rumant, and the type number of the propylene-ethylene copolymer is DF-710.
In the high-strength medical resin, the average grain diameter of the alumina is 0.2 mm;
the average grain diameter of the calcium carbonate is 0.1 mm;
the average grain size of the potassium metabisulfite is 0.2 mm.
Among the high-strength medical resins, isooctanoic acid was purchased from Xin chemical Co., Ltd, Shandong.
Among the above high-strength medical resins, the preparation method of the high-strength medical resin is as follows:
preparing a reaction kettle, adding medical silica gel, propylene-ethylene copolymer, isooctanoic acid, aluminum oxide, calcium carbonate and potassium metabisulfite, heating to 180 ℃, then vacuumizing, mixing and stirring for 60min, and finally feeding into a double-screw extruder for processing.
In the high-strength medical resin, the rotating speed of a double-screw extruder is 300 r/min.
In the high-strength medical resin, the temperatures of the front part, the middle part, the rear part and the machine head of a charging barrel of the double-screw extruder are respectively as follows: 220 deg.C, 225 deg.C, 230 deg.C.
Example 4
The high-strength medical resin comprises the following components:
medical silica gel, propylene-ethylene copolymer, isooctanoic acid, alumina, calcium carbonate and potassium metabisulfite;
the weight ratio of the medical silica gel, the propylene-ethylene copolymer, the isooctanoic acid, the alumina, the calcium carbonate and the potassium metabisulfite is 95: 130: 20: 2: 6: 2.
in the high-strength medical resin, the medical silica gel is purchased from silicone company, cheng of Changshan city, and has a CAS (CAS) registration number of 112926-00-8.
In the high-strength medical resin, the propylene-ethylene copolymer is purchased from Rumant plastics, Inc., of Dongguan city, and the brand is Rumant, and the type number of the propylene-ethylene copolymer is DF-710.
In the high-strength medical resin, the average grain diameter of the alumina is 0.2 mm;
the average grain diameter of the calcium carbonate is 0.1 mm;
the average grain size of the potassium metabisulfite is 0.2 mm.
Among the high-strength medical resins, isooctanoic acid was purchased from Xin chemical Co., Ltd, Shandong.
Among the above high-strength medical resins, the preparation method of the high-strength medical resin is as follows:
preparing a reaction kettle, adding medical silica gel, propylene-ethylene copolymer, isooctanoic acid, aluminum oxide, calcium carbonate and potassium metabisulfite, heating to 180 ℃, then vacuumizing, mixing and stirring for 60min, and finally feeding into a double-screw extruder for processing.
In the high-strength medical resin, the rotating speed of a double-screw extruder is 300 r/min.
In the high-strength medical resin, the temperatures of the front part, the middle part, the rear part and the machine head of a charging barrel of the double-screw extruder are respectively as follows: 220 deg.C, 225 deg.C, 230 deg.C.
Example 5
The high-strength medical resin comprises the following components:
medical silica gel, propylene-ethylene copolymer, isooctanoic acid, alumina, calcium carbonate and potassium metabisulfite;
the weight ratio of the medical silica gel, the propylene-ethylene copolymer, the isooctanoic acid, the alumina, the calcium carbonate and the potassium metabisulfite is 90: 135: 18: 6: 4: 5.
in the high-strength medical resin, the medical silica gel is purchased from silicone company, cheng of Changshan city, and has a CAS (CAS) registration number of 112926-00-8.
In the high-strength medical resin, the propylene-ethylene copolymer is purchased from Rumant plastics, Inc., of Dongguan city, and the brand is Rumant, and the type number of the propylene-ethylene copolymer is DF-710.
In the high-strength medical resin, the average grain diameter of the alumina is 0.2 mm;
the average grain diameter of the calcium carbonate is 0.1 mm;
the average grain size of the potassium metabisulfite is 0.2 mm.
Among the high-strength medical resins, isooctanoic acid was purchased from Xin chemical Co., Ltd, Shandong.
Among the above high-strength medical resins, the preparation method of the high-strength medical resin is as follows:
preparing a reaction kettle, adding medical silica gel, propylene-ethylene copolymer, isooctanoic acid, aluminum oxide, calcium carbonate and potassium metabisulfite, heating to 180 ℃, then vacuumizing, mixing and stirring for 60min, and finally feeding into a double-screw extruder for processing.
In the high-strength medical resin, the rotating speed of a double-screw extruder is 300 r/min.
In the high-strength medical resin, the temperatures of the front part, the middle part, the rear part and the machine head of a charging barrel of the double-screw extruder are respectively as follows: 220 deg.C, 225 deg.C, 230 deg.C.
Comparative example 1
The high-strength medical resin comprises the following components:
medical silica gel, propylene-ethylene copolymer, isooctanoic acid, alumina, calcium carbonate and potassium metabisulfite;
the weight ratio of the medical silica gel, the propylene-ethylene copolymer, the isooctanoic acid, the alumina, the calcium carbonate and the potassium metabisulfite is 100: 100: 18: 6: 4: 5.
in the high-strength medical resin, the medical silica gel is purchased from silicone company, cheng of Changshan city, and has a CAS (CAS) registration number of 112926-00-8.
In the high-strength medical resin, the propylene-ethylene copolymer is purchased from Rumant plastics, Inc., of Dongguan city, and the brand is Rumant, and the type number of the propylene-ethylene copolymer is DF-710.
In the high-strength medical resin, the average grain diameter of the alumina is 0.2 mm;
the average grain diameter of the calcium carbonate is 0.1 mm;
the average grain size of the potassium metabisulfite is 0.2 mm.
Among the high-strength medical resins, isooctanoic acid was purchased from Xin chemical Co., Ltd, Shandong.
Among the above high-strength medical resins, the preparation method of the high-strength medical resin is as follows:
preparing a reaction kettle, adding medical silica gel, propylene-ethylene copolymer, isooctanoic acid, aluminum oxide, calcium carbonate and potassium metabisulfite, heating to 180 ℃, then vacuumizing, mixing and stirring for 60min, and finally feeding into a double-screw extruder for processing.
In the high-strength medical resin, the rotating speed of a double-screw extruder is 300 r/min.
In the high-strength medical resin, the temperatures of the front part, the middle part, the rear part and the machine head of a charging barrel of the double-screw extruder are respectively as follows: 220 deg.C, 225 deg.C, 230 deg.C.
Comparative example 2
The high-strength medical resin comprises the following components:
medical silica gel, propylene-ethylene copolymer, isooctanoic acid, alumina, calcium carbonate and potassium metabisulfite;
the weight ratio of the medical silica gel, the propylene-ethylene copolymer, the isooctanoic acid, the alumina, the calcium carbonate and the potassium metabisulfite is 90: 135: 6: 6: 6: 6.
in the high-strength medical resin, the medical silica gel is purchased from silicone company, cheng of Changshan city, and has a CAS (CAS) registration number of 112926-00-8.
In the high-strength medical resin, the propylene-ethylene copolymer is purchased from Rumant plastics, Inc., of Dongguan city, and the brand is Rumant, and the type number of the propylene-ethylene copolymer is DF-710.
In the high-strength medical resin, the average grain diameter of the alumina is 0.2 mm;
the average grain diameter of the calcium carbonate is 0.1 mm;
the average grain size of the potassium metabisulfite is 0.2 mm.
Among the high-strength medical resins, isooctanoic acid was purchased from Xin chemical Co., Ltd, Shandong.
Among the above high-strength medical resins, the preparation method of the high-strength medical resin is as follows:
preparing a reaction kettle, adding medical silica gel, propylene-ethylene copolymer, isooctanoic acid, aluminum oxide, calcium carbonate and potassium metabisulfite, heating to 180 ℃, then vacuumizing, mixing and stirring for 60min, and finally feeding into a double-screw extruder for processing.
In the high-strength medical resin, the rotating speed of a double-screw extruder is 300 r/min.
In the high-strength medical resin, the temperatures of the front part, the middle part, the rear part and the machine head of a charging barrel of the double-screw extruder are respectively as follows: 220 deg.C, 225 deg.C, 230 deg.C.
Comparative example 3
The high-strength medical resin comprises the following components:
medical silica gel, propylene-ethylene copolymer, alumina, calcium carbonate and potassium metabisulfite;
the weight ratio of the medical silica gel, the propylene-ethylene copolymer, the alumina, the calcium carbonate and the potassium metabisulfite is 90: 135: 6: 4: 5.
in the high-strength medical resin, the medical silica gel is purchased from silicone company, cheng of Changshan city, and has a CAS (CAS) registration number of 112926-00-8.
In the high-strength medical resin, the propylene-ethylene copolymer is purchased from Rumant plastics, Inc., of Dongguan city, and the brand is Rumant, and the type number of the propylene-ethylene copolymer is DF-710.
In the high-strength medical resin, the average grain diameter of the alumina is 0.2 mm;
the average grain diameter of the calcium carbonate is 0.1 mm;
the average grain size of the potassium metabisulfite is 0.2 mm.
Among the above high-strength medical resins, the preparation method of the high-strength medical resin is as follows:
preparing a reaction kettle, adding medical silica gel, propylene-ethylene copolymer, aluminum oxide, calcium carbonate and potassium metabisulfite, heating to 180 ℃, vacuumizing, mixing and stirring for 60min, and finally feeding into a double-screw extruder for processing.
In the high-strength medical resin, the rotating speed of a double-screw extruder is 300 r/min.
In the high-strength medical resin, the temperatures of the front part, the middle part, the rear part and the machine head of a charging barrel of the double-screw extruder are respectively as follows: 220 deg.C, 225 deg.C, 230 deg.C.
Comparative example 4
The high-strength medical resin comprises the following components:
medical silica gel, propylene-ethylene copolymer, isooctanoic acid, calcium carbonate and potassium metabisulfite;
the weight ratio of the medical silica gel, the propylene-ethylene copolymer, the isooctanoic acid, the calcium carbonate and the potassium metabisulfite is 90: 135: 18: 4: 5.
in the high-strength medical resin, the medical silica gel is purchased from silicone company, cheng of Changshan city, and has a CAS (CAS) registration number of 112926-00-8.
In the high-strength medical resin, the propylene-ethylene copolymer is purchased from Rumant plastics, Inc., of Dongguan city, and the brand is Rumant, and the type number of the propylene-ethylene copolymer is DF-710.
In the high-strength medical resin, the average grain diameter of the calcium carbonate is 0.1 mm;
the average grain size of the potassium metabisulfite is 0.2 mm.
Among the high-strength medical resins, isooctanoic acid was purchased from Xin chemical Co., Ltd, Shandong.
Among the above high-strength medical resins, the preparation method of the high-strength medical resin is as follows:
preparing a reaction kettle, adding medical silica gel, propylene-ethylene copolymer, isooctanoic acid, calcium carbonate and potassium metabisulfite, heating to 180 ℃, then vacuumizing, mixing and stirring for 60min, and finally sending into a double-screw extruder for processing.
In the high-strength medical resin, the rotating speed of a double-screw extruder is 300 r/min.
In the high-strength medical resin, the temperatures of the front part, the middle part, the rear part and the machine head of a charging barrel of the double-screw extruder are respectively as follows: 220 deg.C, 225 deg.C, 230 deg.C.
Comparative example 5
The high-strength medical resin comprises the following components:
medical silica gel, isooctanoic acid, alumina, calcium carbonate and potassium metabisulfite;
the weight ratio of the medical silica gel, the isooctanoic acid, the alumina, the calcium carbonate and the potassium metabisulfite is 90: 18: 6: 4: 5.
in the high-strength medical resin, the medical silica gel is purchased from silicone company, cheng of Changshan city, and has a CAS (CAS) registration number of 112926-00-8.
In the high-strength medical resin, the average grain diameter of the alumina is 0.2 mm;
the average grain diameter of the calcium carbonate is 0.1 mm;
the average grain size of the potassium metabisulfite is 0.2 mm.
Among the high-strength medical resins, isooctanoic acid was purchased from Xin chemical Co., Ltd, Shandong.
Among the above high-strength medical resins, the preparation method of the high-strength medical resin is as follows:
preparing a reaction kettle, adding medical silica gel, isooctanoic acid, aluminum oxide, calcium carbonate and potassium metabisulfite, heating to 180 ℃, then vacuumizing, mixing and stirring for 60min, and finally sending into a double-screw extruder for processing.
In the high-strength medical resin, the rotating speed of a double-screw extruder is 300 r/min.
In the high-strength medical resin, the temperatures of the front part, the middle part, the rear part and the machine head of a charging barrel of the double-screw extruder are respectively as follows: 220 deg.C, 225 deg.C, 230 deg.C.
Example 6
The medical resins prepared in examples 1 to 5 and comparative examples 1 to 5 were subjected to the following tests:
it should be reminded that the applicable rate of the medical resin prepared by the method is not high, and the medical resin is mainly used for replacing and repairing materials in dentistry and cannot be equivalent to the effect of light-cured resin.
Specifically, the flexural strength and flexural modulus were measured by a three-point bending method (YY 1042-2011 "dental Polymer restorative materials"), as shown in Table 1.
TABLE 1 test results
| Flexural Strength/MPa | Flexural modulus/GPa | |
| Example 1 | 112 | 9.2 |
| Example 2 | 114 | 9.2 |
| Example 3 | 113 | 9.4 |
| Example 4 | 115 | 9.3 |
| Example 5 | 118 | 9.5 |
| Comparative example 1 | 107 | 8.8 |
| Comparative example 2 | 103 | 8.7 |
| Comparative example 3 | 98 | 7.6 |
| Comparative example 4 | 105 | 8.2 |
| Comparative example 5 | 65 | 5.1 |
In combination with table 1, it can be seen that the addition of the propylene-ethylene copolymer in the present application has a significant effect on the strength improvement of the medical resin, and the addition of isooctanoic acid also plays a critical role, so that the three-dimensional network structure of the copolymer can be enhanced; in addition, the addition of alumina and the like also plays a role, and the strength index is also influenced by the weight ratio of medical silica gel, propylene-ethylene copolymer, isooctanoic acid, alumina, calcium carbonate and potassium metabisulfite. In general, the strength of the medical resin can be effectively improved, and the medical resin is suitable for the field of dental restoration.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. A high-strength medical resin is characterized in that:
comprises the following components:
medical silica gel, propylene-ethylene copolymer, isooctanoic acid, alumina, calcium carbonate and potassium metabisulfite;
the weight ratio of the medical silica gel, the propylene-ethylene copolymer, the isooctanoic acid, the alumina, the calcium carbonate and the potassium metabisulfite is (80-100): (120-150): (10-25): (2-10): (2-6): (2-5).
2. The high strength medical resin according to claim 1, wherein:
comprises the following components:
medical silica gel, propylene-ethylene copolymer, isooctanoic acid, alumina, calcium carbonate and potassium metabisulfite;
the weight ratio of the medical silica gel, the propylene-ethylene copolymer, the isooctanoic acid, the alumina, the calcium carbonate and the potassium metabisulfite is (85-95): (130-140): (15-20): (2-10): (2-6): (2-5).
3. The high strength medical resin according to claim 2, wherein:
comprises the following components:
medical silica gel, propylene-ethylene copolymer, isooctanoic acid, alumina, calcium carbonate and potassium metabisulfite;
the weight ratio of the medical silica gel, the propylene-ethylene copolymer, the isooctanoic acid, the alumina, the calcium carbonate and the potassium metabisulfite is 90: 135: 18: 6: 4: 5.
4. the high strength medical resin according to claim 3, wherein:
the medical silica gel is purchased from Chan Yin of Foshan City to organosilicon Co, and has a CAS registry number of 112926-00-8.
5. The high strength medical resin according to claim 3, wherein:
the propylene-ethylene copolymer was purchased from remaite plastics limited, dongguan, under the brand name of remaite, and the type number of DF-710.
6. The high strength medical resin according to claim 3, wherein:
the average grain diameter of the alumina is 0.2 mm;
the average grain diameter of the calcium carbonate is 0.1 mm;
the average grain size of the potassium metabisulfite is 0.2 mm.
7. The high strength medical resin according to claim 3, wherein:
the isooctanoic acid is purchased from Xin chemical Co., Ltd.
8. The high strength medical resin according to claim 1, wherein:
the preparation method of the high-strength medical resin comprises the following steps:
preparing a reaction kettle, adding medical silica gel, propylene-ethylene copolymer, isooctanoic acid, aluminum oxide, calcium carbonate and potassium metabisulfite, heating to 180 ℃, then vacuumizing, mixing and stirring for 60min, and finally feeding into a double-screw extruder for processing.
9. The high strength medical resin according to claim 8, wherein:
the rotation speed of the twin-screw extruder is 300 r/min.
10. The high strength medical resin according to claim 8, wherein:
the temperatures of the front part, the middle part, the rear part and the machine head of the charging barrel of the double-screw extruder are respectively as follows: 220 deg.C, 225 deg.C, 230 deg.C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110730823.XA CN113413320A (en) | 2021-06-30 | 2021-06-30 | High-strength medical resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110730823.XA CN113413320A (en) | 2021-06-30 | 2021-06-30 | High-strength medical resin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113413320A true CN113413320A (en) | 2021-09-21 |
Family
ID=77717352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110730823.XA Pending CN113413320A (en) | 2021-06-30 | 2021-06-30 | High-strength medical resin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113413320A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5155252A (en) * | 1989-08-14 | 1992-10-13 | Mitsubishi Rayon Co., Ltd. | Material for dentistry |
| US5317074A (en) * | 1991-02-07 | 1994-05-31 | Minnesota Mining And Manufacturing Company | Stain-resistant elastomeric orthodontic force module |
| US20080319100A1 (en) * | 2006-01-09 | 2008-12-25 | Kettenbach Gmbh & Co. Kg | Dental Impression Masses, Hardened Products Produced from them, and Use of Surfactants for the Production of Dental Impression Masses |
| US20110070563A1 (en) * | 2008-04-25 | 2011-03-24 | Sun Medical Co., Ltd. | Easily removable dental curable composition |
| US20120213832A1 (en) * | 2009-10-23 | 2012-08-23 | Tatsuya Ori | Removable dental curable composition |
-
2021
- 2021-06-30 CN CN202110730823.XA patent/CN113413320A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5155252A (en) * | 1989-08-14 | 1992-10-13 | Mitsubishi Rayon Co., Ltd. | Material for dentistry |
| US5317074A (en) * | 1991-02-07 | 1994-05-31 | Minnesota Mining And Manufacturing Company | Stain-resistant elastomeric orthodontic force module |
| US20080319100A1 (en) * | 2006-01-09 | 2008-12-25 | Kettenbach Gmbh & Co. Kg | Dental Impression Masses, Hardened Products Produced from them, and Use of Surfactants for the Production of Dental Impression Masses |
| US20110070563A1 (en) * | 2008-04-25 | 2011-03-24 | Sun Medical Co., Ltd. | Easily removable dental curable composition |
| US20120213832A1 (en) * | 2009-10-23 | 2012-08-23 | Tatsuya Ori | Removable dental curable composition |
Non-Patent Citations (3)
| Title |
|---|
| 山下晋三等: "《交联剂手册》", 31 July 1990 * |
| 武汉大学高分子教研室: "《高分子化学第五分册》", 30 September 1973 * |
| 王炳权等: "《中国机电产品大辞典》", 30 September 1999 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20090123888A1 (en) | Universal dental implant system | |
| CN109589270B (en) | Preparation method of dental material with gradually changed light transmittance and color and product prepared by preparation method | |
| CN108014021B (en) | Tooth filling and repairing material and preparation method thereof | |
| Duke | Adhesion and its application with restorative materials | |
| CN105456039A (en) | Visible light cured dental restorative composition and preparation method thereof | |
| CN113730264B (en) | Dental gradient color resin ceramic restoration material and preparation method thereof | |
| CN110384616B (en) | Antibacterial complete denture and manufacturing method thereof | |
| EP2772244A1 (en) | Molded body for dental use | |
| WO2023000996A1 (en) | Polymerizable monomer composition for dental restoration, preparation method therefor and use thereof | |
| CN101791268A (en) | Color dentistry bonding resin | |
| EP1677741B1 (en) | Dental method and device | |
| Hasanreîarsoǧarlu et al. | Microleakage of direct and indirect inlay/onlay systems | |
| CN109620739B (en) | Mesoporous material-based dental antibacterial composite resin and preparation method thereof | |
| EP1352617A1 (en) | Epoxy resin bonding pad for a ceramic orthodontic appliance | |
| CN103356391A (en) | Dual curing crown nuclear resin for dentistry and preparation method thereof | |
| CN113413320A (en) | High-strength medical resin | |
| CN109464287B (en) | Preparation method of dental composite resin material and product prepared by preparation method | |
| CN112494341A (en) | Dental restoration composition and preparation method and application thereof | |
| Monaco et al. | Short-term clinical evaluation of inlay and onlay restorations made with a ceromer. | |
| Khalesi et al. | Interfacial fracture toughness comparison of three indirect resin composites to dentin and polyether ether ketone polymer | |
| CN112402265A (en) | Machinable dental repair material and preparation method thereof | |
| CN115350335B (en) | Bionic composite material for dental restoration and application thereof | |
| Oberländer et al. | Clinical performance of polyacid-modified resin restorations using” softstart-polymerization” | |
| KR101104387B1 (en) | Dental restorative material composition | |
| CN114106253A (en) | Dental CAD/CAM removable denture layered machinable resin block and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |