CN108359243A - A kind of silicon rubber die material and preparation method - Google Patents
A kind of silicon rubber die material and preparation method Download PDFInfo
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- CN108359243A CN108359243A CN201810156192.3A CN201810156192A CN108359243A CN 108359243 A CN108359243 A CN 108359243A CN 201810156192 A CN201810156192 A CN 201810156192A CN 108359243 A CN108359243 A CN 108359243A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C9/00—Impression cups, i.e. impression trays; Impression methods
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- Oral & Maxillofacial Surgery (AREA)
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Abstract
The present invention discloses a kind of silicone impression material and preparation method, is related to dental care Material Field, the material includes the filler for having silazane, water and basestocks；It is added into the filler and is mixed with the first component that the silicone oil containing H of inhibitor is formed；It is added into the filler and is mixed with the second component that the platinum catalyst of ethylene oil is formed, silicone rubber impression material provided by the invention realizes mixing and the solidification process that material will not be influenced even with medical latex glove, therefore latex class gloves can be had on using silicon rubber secret material provided by the invention directly to be operated, it no longer needs to replace gloves or hand operation, helps to control cross-infection.
Description
Technical field
The present invention relates to medical material field more particularly to dental care Material Fields.
Background technology
Moulage is the material that former is produced in dental treatment, and China is at present still in the stamp for largely using alginic acid salt
Material.Such material is hydrogel moulage, and it is big that there is deformation, and dimensioning accuracy is poor, and impression disinfection difficulty etc. lacks
Point, and the developed countries such as America and Europe have generally used the moulage of silicone rubber kinds.This kind of material has dimensioning accuracy height, constant
Shape, the features such as working model can be perfused repeatedly, as DMG companies, 3M companies, Heraeus Inc., Deng Shibai companies all produce silicon rubber
Offset printing mold materials.But the organic mixed type of existing silicone rubber impression material hybrid mode, rifle mix type and hand mixes three kinds of type, wherein preceding two
Kind due to the use of of high cost, apply at home at present it is less, it is domestic mainly to mix type silastic material using hand, but in mixed process
In, medical latex glove can influence mixing and the solidification process of material, to influence the accuracy of clinical operation and former.Therefore
Using manually or being replaced with non-latex class gloves and operating when Clinical practice, hand operation is unfavorable for controlling cross-infection, and more
It changes non-latex class gloves into not only to make troubles to clinical application to operate, while also causing certain waste (after operation
Continue to treat it is generally necessary to be changed to medical latex glove again).
Currently, Chinese patent literature CN103655212B is disclosed to be applied to first stamp room temperature addition silicone rubber putty type
Oral cavity impression material uses vinyl silicone oil to add reinforcing agent and solubilising using containing hydrogen silicone oil as crosslinking agent for basic polymer
Agent, which has been made a kind of, having favorable elasticity, toughness and intensity, and plasticity is high, and cubical contraction is small, replicates accuracy height, and chemistry is steady
It is qualitative good, there is good hydrophily, the moulage of easy demoulding easy to operate, still, which, cannot in clinical manipulation
It is in contact with emgloves, otherwise can lead to catalyst poisoning and moulage is caused not cure.
Invention content
To solve technical problem of the existing technology, dental impression material of the invention improves the formula and work of material
Skill so that material can not be influenced in the curing process by latex class gloves again, and such medical staff can have on latex class hand
Set is directly operated, and no longer needs to replace gloves or hand operation, helps to control cross-infection.
Technical purpose to realize the present invention, one aspect of the present invention provide a kind of silicone rubber impression material, the silicon rubber
Moulage can be contacted with emgloves without reacting comprising：
Filler with silazane and basestocks；
It is added into the filler and is mixed with the first component that the silicone oil containing H of inhibitor is formed；
It is added into the filler and is mixed with the second component that the protectant platinum catalyst of sulfuration resistant is formed.
Wherein, the weight of first component and the second component is (1-5):(1-5).
Wherein, the platinum catalyst is sulfate radical platinum catalyst.
Wherein, the basestocks include：Vinyl silicone oil and white carbon.
Wherein, the vinyl silicone oil medium vinyl content is 35-80%, preferably 40-75%.
Wherein, the white carbon is gas-phase silica.
Wherein, purity >=95% of the gas-phase silica.
Wherein, the grain size of the gas-phase silica is 4-30nm.
Wherein, the inhibitor includes alkynol and silicone oil.
In particular, the weight of the alkynol and silicone oil is (64-96):(16-24), preferably (76-80):(18-
20)。
In particular, by weight, the weight of vinyl silicone oil described in filler, white carbon and silazane is
(24-60)：(2.4-6.0)：(24-60), preferably (30-50)：(2.4-31.2)：(30-50), further preferably：(36-
40)：(3.6-20.8)：(36-40).
Wherein, by weight, the weight of filler and inhibitor, the silicone oil containing H is (4- in first component
24)：(32-72)：(4-24), preferably (5-20)：(40-60)：(5-20), further preferably：(6-16)：(46-50)：
(6-16)。
Wherein, it is 16000-1200000 that the vinyl silicone oil, which is molecular weight, preferably 20000-1000000, further
Preferably 24000-800000.
Wherein, in the platinum catalyst platinum content be 10.4-27.6%, preferably 13-23%, further preferably
For 15.6-18.4%.
Wherein, the platinum catalyst can be selected commercially available any.
Wherein, by weight, in second component filler and vinyl silicone oil, platinum catalyst weight
For (24-48)：(16-66)：(0.44-1.14), preferably (30-40)：(20-55)：(0.55-0.95), further preferably：
(32-36)：(24-44)：(0.66-0.76).
Wherein, the weight of first component and the second component is (1-5):(1-5), preferably (1.5-5):
(1-5) is preferably further (1.5-5):(1.5-5), further preferably (2-5):(1.5-5), further preferably (2-
5):(2-5)。
In particular, the molecular weight of the containing hydrogen silicone oil is 200000-1000000.
Wherein, Si -- H bond mass percent is 80-90% in the containing hydrogen silicone oil.
Technical purpose to realize the present invention, another aspect of the present invention provide a kind of preparation method of silicone impression material,
Including：
Silazane and basestocks are mixed, filler is obtained；
The silicone oil containing H for being mixed with inhibitor is added into the filler, obtains the first component；
The platinum catalyst for being mixed with ethylene oil is added into the filler, obtains the second component；
First component and the second component are subjected to Quick uniform mixing, obtain silicone impression material.
Wherein, the basestocks include vinyl silicone oil and white carbon.
Preferably, the white carbon is gas-phase silica.
Wherein, it is described by silazane, water and basestocks carry out mixing include：
Gas-phase silica is added in vinyl silicone oil and is uniformly mixed, the vinyl of evenly dispersed white carbon is obtained
Silicon oil mixture；
Silazane coupling agent is added into the mixture to be mixed, filler is obtained.
Wherein, the vinyl silicone oil be by by octamethylcy-clotetrasiloxane, divinyl tetramethyl disiloxane, with
And catalyst, carrying out a variety of different viscosities different contents of ethylene obtained after synthesis processing has the vinyl silicon of greater activity
Oil.
Wherein, the temperature condition of the synthesis processing is 38-85 DEG C, preferably 40-80 DEG C.
Wherein, the synthesis processing is to carry out under vacuum.
Wherein, the octamethylcy-clotetrasiloxane, divinyl tetramethyl disiloxane and catalyst be by weight
Meter, weight are：(30-45)：(30-50)：(0.1-5).
Advantageous effect：
1, since the platinum catalyst used in silicone rubber impression material provided by the invention uses sulfate radical platinum
Catalyst decomposes vulcanization base in advance, and to which guard catalyst acts on, while inhibitor is using the effect for blocking latex component reaction
Ingredient, therefore the moulage of the present invention is using emgloves when being operated, still can be with normal cure, will not be by breast
Sulfhydryl influences in Rubber gloves.
2, material will not be influenced even with medical latex glove due to silicone rubber impression material provided by the invention
Mixing and solidification process, therefore can have on latex class gloves using silicon rubber secret material provided by the invention and directly be grasped
Make, no longer need to replace gloves or hand operation, helps to control cross-infection.
3, it is mixed with the silicone oil containing H of inhibitor since the first component of the present invention uses, the second component, which uses, is mixed with second
The platinum catalyst of alkene oil, therefore it is in oily to be mixed the moulage to be formed, and is not lost in, there is thixotropy, the ring in oral cavity
It is i.e. plastic in 4 minutes in border；It is good with the tooth dirt contact compatibility in the soft tissue in oral cavity or sclerous tissues；Silicon rubber tooth mould is from mouth
When being taken out in chamber, there is lighter off-type power, movable tooth is not had an impact, and stamp shrinking percentage is small, deformation is small, elasticity
Good, energy precision takes type；In addition.Moulage provided by the invention has ageing-resistant performance, and high mechanical strength, elasticity are good, are molded
Quick and convenient, reaction no coupling product, non-toxic and tasteless is easy to operate, there is very high dimensional accuracy.
Specific implementation mode
Present invention will be further explained below with reference to specific examples.But these embodiments be only limitted to illustrate the present invention without
For limiting the scope of the invention.The experimental method of specific experiment condition is not specified in the following example, usually according to conventional strip
Part, or according to the condition proposed by manufacturer, the ingredient in specific source is not specified, unless otherwise instructed, pass through commercially available acquisition.
Embodiment 1
1, the preparation of filler
1.1, the synthesis of vinyl silicone oil
By 37 parts of octamethylcy-clotetrasiloxanes, 40 parts of divinyl tetramethyl disiloxanes and 0.75 part of catalyst at 60 DEG C
Vacuum condition carry out synthetic reaction, obtain a variety of different viscosities different contents of ethylene have greater activity vinyl silicon
Oil, after testing, the contents of ethylene in vinyl silicone oil obtained are 75%.
Wherein, the catalyst is the general catalyst of synthesis of vinyl silicone oil, such as tetramethylammonium hydroxide.
1.2, the preparation of filler
Take 40 parts of vinyl silicone oil made from step 1.1, by 4 parts of white carbons it is vapor-phase after be added thereto, and using high speed
So that gas-phase silica is evenly spread in vinyl silicone oil in dispersion machine, 36 parts of silazane coupling agent mixing are finally added thereto
Form filler.
The white carbon that the present invention uses is the very high amorphous silica of purity, and density is minimum, in very thin stratiform
When be in light blue transparent particles, the intensity of silicon rubber can be increased, in the case that usage amount is less, silastic material obtained
It is transparent.
High speed dispersor used in the present invention is commercially available has any of very strong dispersion and emulsion effect to material
High speed dispersor.
2, the preparation of the first component
2.1, the synthesis of containing hydrogen silicone oil
40 parts of octamethylcy-clotetrasiloxanes, 20 parts of hydrogeneous double seal heads, 40 parts of resin cations, under 60 DEG C of vacuum condition
It is synthesized, obtains the higher containing hydrogen silicone oil of activity.
After testing, the molecular weight of containing hydrogen silicone oil is 600000, and Si -- H bond mass percent is 85%.
2.2, inhibitor synthesizes
80 parts of alkynols and 20 parts of silicone oil are modified under 90 DEG C of vacuum condition, are made preferable with silicone oil intermiscibility
Inhibitor.
2.3, the first component is prepared
By the inhibitor that the silicone oil of base containing H that step 2.1 synthesizes, step 2.2 obtain and the filler that step 1 obtains according to weight
It is 18 that amount part, which is compared,：50：6 ratio is mixed at normal temperatures, obtains the first component.
3, the preparation of the second component
The filler that vinyl silicone oil, platinum catalyst and step 1 are obtained is 16 according to weight part ratio：0.70：24 ratio
Example is mixed at normal temperatures, forms the second component.Wherein, existing any platinum catalysis can be used in platinum catalyst
Agent, for example, using chloroplatinic acid noble metal as the platinum catalyst of primary raw material active component, it is preferable that in the platinum catalyst
The content of platinum is 13%.
Wherein, the molecular weight of vinyl silicone oil is 1000000.
It should be noted that vinyl silicone oil used in the present invention, platinum catalyst are commercial product.
4, the preparation of transparent silicone rubber moulage
First component and the second component prepared by step 2 and step 3 is by 1：1 is rapid uniformly mixed to get transparent silicon rubber
Offset printing mold materials.
Embodiment 2
1, the preparation of filler
1.1, the synthesis of vinyl silicone oil
By 30 parts of octamethylcy-clotetrasiloxanes, 50 parts of divinyl tetramethyl disiloxanes and 4 parts of catalyst at 80 DEG C
Vacuum condition carries out synthetic reaction, and obtaining a variety of different viscosities different contents of ethylene has the vinyl silicone oil of greater activity,
After testing, the contents of ethylene in vinyl silicone oil obtained is 70%.
1.2, the preparation of filler
Take 30 parts of vinyl silicone oil made from step 1.1, by 3.6 parts of white carbons it is vapor-phase after be added thereto, and using high
So that gas-phase silica is evenly spread in vinyl silicone oil in fast dispersion machine, it is mixed that 50 parts of silazane coupling agents are finally added thereto
Conjunction forms filler.
2, the preparation of the first component
2.1, the synthesis of containing hydrogen silicone oil
32 parts of octamethylcy-clotetrasiloxanes, 18 parts of hydrogeneous double seal heads, 36 parts of resin cations, under 70 DEG C of vacuum condition
It is synthesized, obtains the higher containing hydrogen silicone oil of activity.
After testing, the molecular weight of containing hydrogen silicone oil is 600000, and Si -- H bond mass percent is 85%.
2.2, inhibitor synthesizes
76 parts of alkynols and 18 parts of silicone oil are modified under 98 DEG C of vacuum condition, are made preferable with silicone oil intermiscibility
Inhibitor.
2.3, the first component is prepared
By the inhibitor that silicone oil containing H that step 2.1 synthesizes, step 2.2 obtain and the filler that step 1 obtains according to weight
Part is than being 10：48：16 ratio is mixed at normal temperatures, obtains the first component.
3, the preparation of the second component
The filler that vinyl silicone oil, platinum catalyst and step 1 are obtained is 28 according to weight part ratio：0.90：30 ratio
Example is mixed at normal temperatures, forms the second component.Wherein, the content of platinum is 18% in platinum catalyst, vinyl silicone oil
Molecular weight be 610000.
4, the preparation of transparent silicone rubber moulage
First component and the second component prepared by step 2 and 3 is by 1：2 rapid are uniformly mixed print to get transparent silicone rubber
Mold materials.
Embodiment 3
1, the preparation of filler
1.1, the synthesis of vinyl silicone oil
By 40 parts of octamethylcy-clotetrasiloxanes, 38 parts of divinyl tetramethyl disiloxanes and 3 parts of catalyst at 70 DEG C
Vacuum condition carries out synthetic reaction, and obtaining a variety of different viscosities different contents of ethylene has the vinyl silicone oil of greater activity,
After testing, the contents of ethylene in vinyl silicone oil obtained is 65%.
1.2, the preparation of filler
Take 60 parts of vinyl silicone oil made from step 1.1, by 20.8 parts of white carbons it is vapor-phase after be added thereto, and using high
So that gas-phase silica is evenly spread in vinyl silicone oil in fast dispersion machine, it is mixed that 38 parts of silazane coupling agents are finally added thereto
Conjunction forms filler.
2, the preparation of the first component
2.1, the synthesis of containing hydrogen silicone oil
38 parts of octamethylcy-clotetrasiloxanes, 22 parts of hydrogeneous double seal heads, 32 parts of resin cations, under 50 DEG C of vacuum condition
It is synthesized, obtains the higher containing hydrogen silicone oil of activity.
After testing, the molecular weight of containing hydrogen silicone oil is 600000, and Si -- H bond mass percent is 85%.
2.2, inhibitor synthesizes
64 parts of alkynols and 16 parts of silicone oil are modified under 80 DEG C of vacuum condition, are made preferable with silicone oil intermiscibility
Inhibitor.
2.3, the first component is prepared
By the inhibitor that silicone oil containing H that step 2.1 synthesizes, step 2.2 obtain and the filler that step 1 obtains according to weight
Part is than being 8：48：10 ratio is mixed at normal temperatures, obtains the first component.
3, the preparation of the second component
The filler that vinyl silicone oil, platinum catalyst and step 1 are obtained is 44 according to weight part ratio：0.90：38 ratio
Example is mixed at normal temperatures, forms the second component.Wherein, the content of platinum is 20% in platinum catalyst, vinyl silicone oil
Molecular weight be 610000.
4, the preparation of transparent silicone rubber moulage
First component and the second component prepared by step 2 and 3 is by 2：1 rapid be uniformly mixed prints to get transparent silicone rubber
Mold materials.
Embodiment 4
1, the preparation of filler
1.1, the synthesis of vinyl silicone oil
By 42 parts of octamethylcy-clotetrasiloxanes, 41 parts of divinyl tetramethyl disiloxanes and 1 part of catalyst at 40 DEG C
Vacuum condition carries out synthetic reaction, and obtaining a variety of different viscosities different contents of ethylene has the vinyl silicone oil of greater activity,
After testing, the contents of ethylene in vinyl silicone oil obtained is 80%.
Wherein, the catalyst is the general catalyst of synthesis of vinyl silicone oil, such as tetramethylammonium hydroxide.
1.2, the preparation of filler
Take 50 parts of vinyl silicone oil made from step 1.1, by 26 parts of white carbons it is vapor-phase after be added thereto, and using high speed
So that gas-phase silica is evenly spread in vinyl silicone oil in dispersion machine, 40 parts of silazane coupling agent mixing are finally added thereto
Form filler.
2, the preparation of the first component
2.1, the synthesis of containing hydrogen silicone oil
48 parts of octamethylcy-clotetrasiloxanes, 24 parts of hydrogeneous double seal heads, 44 parts of resin cations, under 75 DEG C of vacuum condition
It is synthesized, obtains the higher containing hydrogen silicone oil of activity.
After testing, the molecular weight of containing hydrogen silicone oil is 800000, and Si -- H bond mass percent is 85%.
2.2, inhibitor synthesizes
92 parts of alkynols and 24 parts of silicone oil are modified under 95 DEG C of vacuum condition, are made preferable with silicone oil intermiscibility
Inhibitor.
2.3, the first component is prepared
By the inhibitor that the silicone oil of base containing H that step 2.1 synthesizes, step 2.2 obtain and the filler that step 1 obtains according to weight
It is 24 that amount part, which is compared,：50：22 ratio is mixed at normal temperatures, obtains the first component.
3, the preparation of the second component
The filler that vinyl silicone oil, platinum catalyst and step 1 are obtained is 54 according to weight part ratio：0.70：46 ratio
Example is mixed at normal temperatures, forms the second component.Wherein, the content of platinum is 23% in the platinum catalyst.
4, the preparation of transparent silicone rubber moulage
First component and the second component prepared by step 2 and step 3 is by 1：5 is rapid uniformly mixed to get transparent silicon rubber
Offset printing mold materials.
It should be noted that the dosage of octamethylcy-clotetrasiloxane is in 30- used in synthesis of vinyl silicone oil of the present invention
Can be realized in 45 parts of numberical range the present invention technical purpose, such as 31,32,33,34,35,36,37,38,39,40,
41,42,43,44 etc., the dosage of the divinyl tetramethyl disiloxane used can be real in 30-50 parts of numberical range
The technical purpose of the existing present invention, for example, 31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,
49 etc., the dosage of the catalyst used can realize the technical purpose of the present invention in 0.1-5 parts of numberical range, such as
0.2、0.3、0.4、0.5、0.6、0.7、0.8、0.9、1.0、1.2、1.6、1.8、1.9、2.0、2.1、2.3、2.4、2.5、2.6、
2.8,2.9,3.0,3.2,3.4,3.5,3.6,3.8,3.9,4.0,4.1,4.2,4.3,4.5,4.6,4.9 etc., synthesis of vinyl
The reaction temperature of silicone oil can realize the technical purpose of the present invention in 40-80 DEG C of numberical range, for example, 41,4.5,4.6,
4.8,49,50,51,52,53,56,59,61,64,65,68,69,70,72,73,75,76,78,79 etc..
It should be noted that the present invention prepares the dosage of vinyl silicone oil used in filler in 24-60 parts of numberical ranges
It is interior can realize the present invention technical purpose, such as 24,26,27,28,29,30,31,32,33,34,35,36,37,38,
39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59 etc., silazane coupling agent
Dosage can be realized in 24-60 parts of numberical ranges the present invention technical purpose, such as 24,26,27,28,29,30,31,
32、33、34、35、36、37、38、39、40、41、42、43、44、45、46、47、48、49、50、51、52、53、54、55、56、
57,58,59 etc., the dosage of white carbon can realize the technical purpose of the present invention in 2.4-26 parts of numberical ranges, such as
2.4、2.6、2.7、2.8、2.9、3.0、3.1、3.2、3.3、3.4、3.5、3.6、3.7、3.8、3.9、4.0、4.1、4.2、4.3、
4.4、4.5、4.6、4.7、4.8、4.9、5.0、5.1、5.2、5.3、5.4、5.5、5.6、5.7、5.8、5.9、6、7、8、9、10、
11,12,13,14,15,18,19,20,21,22,23,24,25 etc., in particular, the dosage of white carbon is volume parts, the use of water
Amount can realize technical purpose of the invention in 0.8-1.8 part of numberical range, for example, 0.9,1.0,1.1,1.2,1.3,
1.4,1.5,1.6,1.7 etc..
Especially, when the dosage when white carbon in filler is less than the 5% of total weight, moulage prepared by the present invention is
Transparent color is solved existing coloured opaque product and is being not easy to recognize that caused stamp duplication accuracy is low using process
Technical problem, photocuring caused by opaque silicon rubber die material can not be penetrated by also solving the light that uv equipment is sent out
The technical issues of material can not cure.
It should be noted that the present invention synthesizes the dosage of octamethylcy-clotetrasiloxane used in containing hydrogen silicone oil at 32-48 parts
Can be realized in numberical range the present invention technical purpose, such as 33,34,35,36,37,38,39,40,41,42,43,44,
45,46,47 etc., the dosage of hydrogeneous double seal head can realize the technical purpose of the present invention, example in 16-24 parts of numberical range
Such as 17,18,19,20,21,22,23, the dosage of resin cation can realize this in 32-48 parts of numberical range
The technical purpose of invention, such as 33,34,35,36,37,38,39,40,41,42,43,44,45,46,47 etc., synthesize Silicon Containing Hydrogen
The reaction temperature of oil can realize the technical purpose of the present invention in 40-80 DEG C of numberical range, for example, 41,4.5,4.6,4.8,
49,50,51,52,53,56,59,61,64,65,68,69,70,72,73,75,76,78,79 etc..
It should be noted that the dosage of alkynol used in synthetic inhibitor can be realized in 64-96 parts of numberical range
The present invention technical purpose, such as 65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,81,82,83,
84,85,86,87,88,89,90,91,92,93,94,95 etc., the dosage of silicone oil can be real in 16-24 parts of numberical range
The technical purpose of the existing present invention, such as 17,18,19,20,21,22,23 etc., the reaction temperature of synthetic inhibitor is at 80-100 DEG C
Numberical range can realize the present invention technical purpose, such as 81,82,83,84,85,86,87,88,89,90,91,92,
93,94,95,96,97,98,99 etc..
It should be noted that the dosage for preparing the containing hydrogen silicone oil used in the first component all may be used in 4-24 parts of numberical range
With realize the present invention technical purpose, such as 5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,
23 etc., the dosage of inhibitor can realize the technical purpose of the present invention in 32-72 parts of numberical range, for example, 33,34,
35、36、37、38、39、40、41、42、43、44、45、46、47、48、49、50、51、52、53、54、55、56、57、58、59、
60,61,62,63,64,65,66,67,68,69,70,71 etc., the dosage of filler can be real in 4-24 parts of numberical range
The technical purpose of the existing present invention, such as 5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23 etc..
It should be noted that preparing the dosage of the platinum catalyst used in the second component in the range of 0.44-1.44 parts
Can realize the present invention technical purpose, such as 0.45,0.46,0.47,0.48,0.49,0.50,0.51,0.52,
0.53、0.54、0.55、0.56、0.57、0.58、0.59、0.60、0.61、0.62、0.63、0.64、0.65、0.66、0.67、
0.68、0.69、0.70、0.71、0.72、0.73、0.74、0.75、0.76、0.77、0.78、0.79、0.80、0.81、0.83、
0.89、0.90、0.91、0.92、0.95、0.97、0.98、1.0、1.01、1.05、1.06、1.08、1.10、1.11、1.15、
1.16,1.17,1.19,1.21,1.25,1.26,1.28,1.30,1.35,1.36,1.39,1.40,1.43 etc., vinyl silicone oil
Dosage can be realized in 16-66 parts of numberical ranges the present invention technical purpose, such as 17,18,19,20,21,22,23,
24、26、27、28、29、30、31、32、33、34、35、36、37、38、39、40、41、42、43、44、45、46、47、48、49、
50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65 etc., the numerical value model of the dosage of filler at 24-48 parts
Can realize the technical purpose of the present invention in enclosing, for example, 25,26,27,28,29,30,31,32,33,34,35,36,37,38,
39,40,41,42,43,44,45,46,47 etc..
It should be noted that the amount ratio of the first component and the second component is in 1-5:In the proportional region of 1-5 can
Realize the technical purpose of the present invention, such as 1:1、1:2、1:3、1:4、1:5、2:1、2:3、2:5、3:1、3:2、3:4、3:5、4:1、
4:3、4:5 etc..
Test example 1
Moulage made from embodiment 1-4 is detected into physical property, chemical property and biology performance, it is specific to examine
Survey method and result are as follows：
1, the detection of product appearance and physical property
According to YY 0493-2011《Dentistry elastomeric stamp material》Standard carries out moulage made from embodiment
Apparent parameter, reconciliation time, working time, hardness (i.e. consistency), detail rendition degree, linear dimension variation and gypsum compatibility,
Elastic recovery rate and compressive strain are measured and evaluate, and testing result is as shown in table 1.
2, the detection of biology performance
Bio-safety index is according to national standard YY/T0268-2008《Dentistry oral cavity medical apparatus biological assessment》And
YY/T 0127.13-2009《The 2nd single test method oral mucosa irritant test of oral cavity medical apparatus biological assessment》To reality
It applies the intradermal stimulation of moulage progress, cytotoxicity, delayed allergy made from example to be detected, testing result such as table 2
It is shown.
1 product appearance of table and physical property examine record
2 biology performance testing result of table
| Example 1 | Example 2 | Example 3 | Example 4 | |
| Endothelium stimulates | ＜ 1.0 | ＜ 1.0 | ＜ 1.0 | ＜ 1.0 |
| Cytotoxicity | 1 grade | 1 grade | 1 grade | 1 grade |
| Delayed allergy | Nothing | Nothing | Nothing | Nothing |
According to the content of table 1 and table 2 it is found that moulage produced by the present invention meets relevant criterion requirement.
Test example 2 carries out buccal impression experiment using emgloves
Clinical manipulation is carried out to moulage prepared by 1-4 of the embodiment of the present invention using emgloves, tooth mould is prepared, operates
Method is identical as routine techniques, observes the physical property of material, for example, hardening time, compatibility, off-type power, tooth mould it is physical
Matter.
Although it is observed that having used emgloves, silastic material prepared by the present invention still can be emulsified normally,
The faster curingprocess rate in the environment in oral cavity has, it is i.e. plastic in 4 minutes；With the tooth dirt in the soft tissue in oral cavity or sclerous tissues
Compatibility is good when contact, when silicon rubber tooth mould takes out from oral cavity, there is lighter off-type power, shadow is not generated to movable tooth
It rings, and molding stamp, shrinking percentage is small, and deformation is small, and elasticity is good, and energy precision takes type.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should be included in protection scope of the present invention etc.
Claims (10)
1. a kind of silicone rubber impression material, which is characterized in that the silicone rubber impression material can be contacted with emgloves without sending out
Raw reaction comprising：
Filler with silazane and basestocks；
It is added into the filler and is mixed with the first component that the silicone oil containing H of inhibitor is formed；
It is added into the filler and is mixed with the second component that the protectant platinum catalyst of sulfuration resistant is formed；
Wherein, the weight of first component and the second component is (1-5):(1-5)；
Wherein, the platinum catalyst is sulfate radical platinum catalyst.
2. silicone impression material as described in claim 1, which is characterized in that the basestocks include：Vinyl silicone oil and white
Carbon black.
3. silicone impression material as described in claim 1, which is characterized in that the inhibitor includes alkynol and silicone oil.
4. silicone impression material as claimed in claim 3, which is characterized in that the weight of the alkynol and silicone oil is
(3.5-4.5):(0.5-1.5)。
5. silicone impression material as described in claim 1, which is characterized in that by weight, the vinyl silicone oil, hard charcoal
Black, silazane weight is (30-50)：(3-26)：(30-50).
6. silicone impression material as described in claim 1, which is characterized in that by weight, filler in first component
Weight with inhibitor, the silicone oil containing H is (5-20)：(40-60)：(5-20).
7. silicone impression material as described in claim 1, which is characterized in that by weight, filler in second component
Weight with ethylene oil, platinum catalyst is (30-40)：(20-55)：(13-23).
8. silicone impression material as described in claim 1, which is characterized in that the contents of ethylene in the vinyl silicone oil is
40-75%.
9. silicone impression material as described in claim 1, which is characterized in that the containing hydrogen silicone oil molecular weight is 200000-
1000000, mass percent containing Si -- H bond is 80-90%.
10. a kind of preparation method of silicone impression material, which is characterized in that including：
Silazane and basestocks are mixed, filler is obtained；
The silicone oil containing H for being mixed with inhibitor is added into the filler, obtains the first component；
The platinum catalyst for being mixed with ethylene oil is added into the filler, obtains the second component；
First component and the second component are subjected to Quick uniform mixing, obtain silicone impression material；
Wherein, it is described by silazane and basestocks carry out mixing include：
It after vapor-phase white carbon, is added in vinyl silicone oil and is uniformly mixed, obtain the vinyl of evenly dispersed white carbon
Silicon oil mixture；
Silazane coupling agent is added into the mixture to be mixed, filler is obtained.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113321934A (en) * | 2021-07-20 | 2021-08-31 | 惠州市永卓科技有限公司 | Special mould silica gel for model overturning of simulated historic building and preparation method thereof |
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2018
- 2018-02-24 CN CN201810156192.3A patent/CN108359243A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113321934A (en) * | 2021-07-20 | 2021-08-31 | 惠州市永卓科技有限公司 | Special mould silica gel for model overturning of simulated historic building and preparation method thereof |
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