CN103655210B - Be applied to and sting jaw record room temperature addition-type silicon rubber impression material - Google Patents
Be applied to and sting jaw record room temperature addition-type silicon rubber impression material Download PDFInfo
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- CN103655210B CN103655210B CN201310551893.4A CN201310551893A CN103655210B CN 103655210 B CN103655210 B CN 103655210B CN 201310551893 A CN201310551893 A CN 201310551893A CN 103655210 B CN103655210 B CN 103655210B
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- silicone oil
- vinyl silicone
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- type silicon
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Abstract
One is applied to stings jaw record room temperature addition-type silicon rubber impression material, be made up of matrix components and catalyst component two kinds of components, wherein matrix components forms by containing the vinyl silicone oil of two vinyls, the containing hydrogen silicone oil, bulking agent, reinforcing agent, inhibitor etc. containing the Si-H group of more than three or three; Catalyst component is made up of the vinyl silicone oil, bulking agent, reinforcing agent, platinum catalyst etc. containing two vinyls.Hardening time of the present invention 30-50s, operating time about 30s, take-off time is 60s, shore hardness is up to 80, and micro-copy is clear, and simple to operate, simple process, hardening time, elastic recovery, tearing strength, shore hardness, micro-copies etc. all reach requirement, reduce the cubical contraction of impression material, improve the dimensional stability of material, it is high that material copies degree of accuracy, and die micro-copy is clear.
Description
Technical field
The invention belongs to Medical oral cavity Material Field, relate to and medically sting jaw recording materials.
Background technology
Room temperature addition-type silicon rubber it is advantageous that hardening time is short in the application of oral cavity impression material, and solidify fast in oral cavity, solidify rear dimensionally stable, fine structure copies superior, and operating characteristics is also fine, thus does and is used in oral cavity as impression material.Report at present about room curing silicon rubber has many, wherein some is the report of oral cavity impression material, the material property of positions different in different purposes and oral cavity required by it is different, though patents more both domestic and external and the document studying this material have disclosed the preparation method of silicone rubber impression material, do not illustrate this material and done which kind of purposes and be used in which position, oral cavity.As Northwestern Polytechnical University grandson nine stands, Shandong University Wang Wei, though their Master's thesis research such as Shandong University's relative rosy clouds is the preparation of oral cavity impression material, but only indicate that this material can be used in medical science, all do not illustrate use what position play what effect, more than comprehensive, we can find out that room temperature addition-type silicon rubber is wide because its special performance uses, but few people only do any research for stinging jaw record addition-type silicon rubber impression material for tooth so far.
Summary of the invention
The object of this invention is to provide one to be applied to and to sting jaw record room temperature addition-type silicon rubber impression material, this material cured time 1min30s-2min, shore hardness is up to 80, and micro-copy is clear.
Of the present invention being applied to stings jaw record room temperature addition-type silicon rubber impression material polymer based on vinyl silicone oil, take containing hydrogen silicone oil as cross-linking agent, take platinum complex as catalyst, add reinforcing agent and bulking agent, bulking agent can expand the volume of sizing material, increase the quality of sizing material, reinforcing agent can improve the physical and mechanical properties of modeling composition.Of the present inventionly be applied to that to sting jaw record room temperature addition-type silicon rubber impression material be bicomponent material, bi-component is divided into matrix components and catalyst component, matrix components includes base polymer and cross-linking agent, catalyst component includes base polymer and catalyst, in two components, add appropriate reinforcing agent, bulking agent, mill base etc. simultaneously, cross-linking agent is containing hydrogen silicone oil, and containing hydrogen silicone oil is hydrogen based polysiloxane, and the present invention is achieved by the following technical solutions.
Of the present invention being applied to is stung jaw record room temperature addition-type silicon rubber impression material and is made up of matrix components and catalyst component two kinds of components, and formula stirs through electric blender by mass percentage, vacuumizing and defoaming forms by following several raw material:
Matrix components contains the vinyl silicone oil of two vinyls by one or more at least each molecules of 15%-45%; One or more at least each macromole of 1%-5% should contain the containing hydrogen silicone oil of the Si-H group of more than three or three; The bulking agent of 40%-70%; The reinforcing agent of 2%-10%; The inhibitor of 0.15%-0.6%; Other auxiliary agents of 0.5%-2% formed.
Catalyst component contains the vinyl silicone oil of two vinyls by one or more at least each molecules of 15%-45%; The bulking agent of 40%-70%; The reinforcing agent of 2%-10%; The platinum catalyst of 1%-2%; Other auxiliary agents of 0.5%-2% formed.
The contents of ethylene of described vinyl silicone oil is at 0.22-0.8mol%, and viscosity is in 1000-60000mPas scope, and this vinyl silicone oil is double bond end-blocking or double bond is the vinyl silicone oil of side chain, and its structural formula is as shown in I or II.
Described containing hydrogen silicone oil molecular weight is 740-3800, and viscosity is 5-300mm 25 DEG C time
2/ s, be 0.5-1.3% containing Si-H key amount, its structural formula is as shown in III.
Described reinforcing agent is gas-phase silica, and its specific surface area is 10m
2/ g.
Described bulking agent is silica flour, and its particle diameter is less than 2 μm.
Described inhibitor is tetramethyl divinyl disiloxane, and its mass percent is 0.15%-0.6%, extends the operating time of clinician, is convenient to better operation, ensures the quality after material cured.
Other described auxiliary agents are minty note quintessence oil and mill base.
Matrix components of the present invention and catalyst component use electric blender mix homogeneously respectively, and obtained after vacuumizing and defoaming 30min.
It is stand-by that each component sizing material after deaeration of the present invention injects 2 × 50ml bi-component sebific duct by bi-component filling machine, jaw record is stung for tooth, hybrid gun is used automatically to mix, can 1: 1 automatic mixed stirring be evenly and export by volume by the two components in bi-component sebific duct when hybrid gun mixes automatically.
Material of the present invention should avoid the contact of altex glove and impression material and oral cavity tissue in Clinical practice, namely avoids catalyst poisoning, causes material not sulfuration.
Reaction mechanism of the present invention is hydrosilylation, the end-blocking vinyl of the vinyl silicone oil in modeling composition and the si-h bond generation hydrosilylation of containing hydrogen silicone oil, namely si-h bond is with carbon-carbon double bond addition, and form cross-linked structure, its reaction equation as shown in Equation (1).
Catalyst of the present invention is the compound that platinum compounds is dissolved in methyl vinyl silicone cooperation, and platinum containing amount is 1000-3000ppm, and this catalyst agent mechanism as shown in Equation (2).
The present invention injects Buccodental cross section and stings jaw at 30s-50s crosslinking curing, can take out, sting jaw record clear after one and half in oral cavity.
Ⅰ
Ⅱ
Wherein R=C
nh
2n+1.
Ⅲ
Wherein R=CnH
2n+1.
Following formula is hydrosilylation mechanism equation of the present invention.
(1)
Following formula is the catalytic mechanism of catalyst of the present invention:
(2)
The invention has the advantages that and develop one for stinging jaw record room temperature addition-type silicon rubber impression material, this material cured time 30-50s, operating time about 30s, take-off time is 60s, and shore hardness is up to 80, and micro-copy is clear.The present invention is simple to operate, simple process, hardening time, elastic recovery, tearing strength, and shore hardness, micro-copy etc. all reach requirement.Compared with prior art, the invention has the beneficial effects as follows the cubical contraction reducing impression material, improve the dimensional stability of material, it is high that material copies degree of accuracy, and die micro-copy is clear.
Detailed description of the invention
The present invention will be described further by following examples.
Embodiment 1.
It is as shown in the table that the present embodiment is applied to the formula stinging jaw record room temperature addition-type silicon rubber impression material:
Embodiment 2.
It is as shown in the table that the present embodiment is applied to the formula stinging jaw record room temperature addition-type silicon rubber impression material:
Embodiment 3.
It is as shown in the table that the present embodiment is applied to the formula stinging jaw record room temperature addition-type silicon rubber impression material:
Embodiment 4.
It is as shown in the table that the present embodiment is applied to the formula stinging jaw record room temperature addition-type silicon rubber impression material:
The viscosity of the vinyl silicone oil described in the present embodiment is 50000mPas and this vinyl silicone oil is double bond end-blocking or double bond is the vinyl silicone oil of side chain, its structural formula is as shown in I or II, described containing hydrogen silicone oil is 1.2% containing Si-H key amount, described bulking agent is ultrafine quartz powder, and described reinforcing agent is specific surface area is 10m
2the gas-phase silica of/g, inhibitor is tetramethyl divinyl disiloxane, and described platinum catalyst is the compound that platinum compounds is dissolved in methyl vinyl silicone cooperation, and platinum containing amount is 3000ppm.
After reinforced according to formula, matrix components and catalyst component are used electric blender mix homogeneously respectively, and vacuumizing and defoaming 30min, it is stand-by that each component sizing material after deaeration injects 2 × 50ml bi-component sebific duct by bi-component filling machine, jaw record is stung for tooth, hybrid gun is used automatically to mix, can 1: 1 automatic mixed stirring be evenly and export by volume by the two components in bi-component sebific duct when hybrid gun mixes automatically.
The material be made up of above embodiment meets the requirement of the various impression of dentistry, obtains accurate impressions for dentistry, can be widely used in hat bridge die, inlay and onlay die, functional impression, implantation body's die, artificial tooth die and oral cavity tissue die.
Claims (1)
1. be applied to and sting a jaw record room temperature addition-type silicon rubber impression material, it is characterized in that being made up of matrix components and catalyst component two kinds of components:
In matrix components, one or more at least each molecules of the mass percent of each composition: 15%-45% contain the vinyl silicone oil of two vinyls; One or more at least each macromole of 1%-5% should contain the containing hydrogen silicone oil of the Si-H group of more than three or three; The bulking agent of 40%-70%; The reinforcing agent of 2%-10%; The inhibitor of 0.15%-0.6%; Other auxiliary agents of 0.5%-2%;
In catalyst component, one or more at least each molecules of the mass percent of each composition: 15%-45% contain the vinyl silicone oil of two vinyls; The bulking agent of 40%-70%; The reinforcing agent of 2%-10%; The platinum catalyst of 1%-2%; Other auxiliary agents of 0.5%-2% formed;
The contents of ethylene of described vinyl silicone oil is at 0.22-0.8mol%, and viscosity is in 1000-60000mPas scope, and this vinyl silicone oil is double bond end-blocking or double bond is the vinyl silicone oil of side chain;
Described containing hydrogen silicone oil molecular weight is 740-3800, and viscosity is 5-300mm 25 DEG C time
2/ s is 0.5-1.3% containing Si-H key amount;
Described reinforcing agent is gas-phase silica, and its specific surface area is 10m
2/ g;
Described bulking agent is silica flour, and its particle diameter is less than 2 μm;
Described inhibitor is tetramethyl divinyl disiloxane, and its mass percent is 0.15%-0.6%;
Other described auxiliary agents are minty note quintessence oil and mill base.
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| CN201310551893.4A CN103655210B (en) | 2013-11-11 | 2013-11-11 | Be applied to and sting jaw record room temperature addition-type silicon rubber impression material |
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| CN201310551893.4A CN103655210B (en) | 2013-11-11 | 2013-11-11 | Be applied to and sting jaw record room temperature addition-type silicon rubber impression material |
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| CN103655210A CN103655210A (en) | 2014-03-26 |
| CN103655210B true CN103655210B (en) | 2016-03-02 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104921958A (en) * | 2015-06-10 | 2015-09-23 | 苏州佑君环境科技有限公司 | Addition type silicone rubber impression material |
| CN109431819B (en) * | 2018-10-08 | 2020-03-06 | 柳何栩 | Silicone rubber impression material for primary impression and preparation method thereof |
| CN110527301A (en) * | 2019-08-24 | 2019-12-03 | 江西纳恩新材料有限公司 | A kind of anti-structuring dental impression material |
| CN114179394B (en) * | 2021-11-23 | 2024-04-19 | 湖北三江航天江北机械工程有限公司 | Method for controlling forming of crack stop point of heat insulation layer of end socket of solid rocket engine |
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Effective date of registration: 20170322 Address after: 226200 Qidong, Jiangsu Binhai Industrial Park, Nanhai Road, No. 101, No. Patentee after: Nunn Qidong New Material Co. Ltd. Address before: 330096 Nanchang high tech Development Zone, Jiangxi high tech Road, No. two, high-tech park, room 18, Patentee before: JIANGXI LYUTAI TECHNOLOGY CO., LTD. |
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