CN105038252A - Condensed type one-component room temperature vulcanized development adhesive and preparation method thereof - Google Patents
Condensed type one-component room temperature vulcanized development adhesive and preparation method thereof Download PDFInfo
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- CN105038252A CN105038252A CN201510497777.8A CN201510497777A CN105038252A CN 105038252 A CN105038252 A CN 105038252A CN 201510497777 A CN201510497777 A CN 201510497777A CN 105038252 A CN105038252 A CN 105038252A
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Abstract
The invention discloses a condensed type one-component room temperature vulcanized development adhesive and a preparation method thereof. The adhesive is prepared from the following components in parts by weight: 80 to 120 parts of 107 adhesive, 10 to 30 parts of an addition agent, 2 to 20 parts of a cross-linking agent, 1 to 10 parts of a developing agent and 5 to 40 parts of filler. According to the method, the development adhesive is prepared by uniformly mixing 80 to 120 parts of the 107 adhesive, 10 to 30 parts of the addition agent, 2 to 20 parts of the cross-linking agent, 1 to 10 parts of the developing agent and 5 to 40 parts of the filler under a sealing condition. The development adhesive has the advantages that the liquidity is good, certain operable time and good adhesion are realized, the development effect under the irradiation of an X-ray is obvious and accurate, and can realize excellent adhesion on medical catheters; through detection, the development adhesive is one-component room temperature vulcanized silicone rubber meeting the medical standards.
Description
Technical field
The present invention relates to adhesive technology field, particularly relate to single-component room temperature vulcanized developing rubber of a kind of condensed type and preparation method thereof.
Background technology
Condensed type single-component room-temperature-vulsilicone silicone rubber is the product that a kind of Technology is more ripe, represents with RTV.RTV has excellent insulativity, resistance to electric arc, water-fast, weather-proof, resistance to ozone, biochemical consistency etc., also there is good cementability, be therefore widely used in the technical fields such as medical treatment, toy, sealing material, artwork, kitchen tackle, electronic machine, aerospace.Usually depickling type, ketoxime removing type, dealcoholizing-type, deacetone and de amide type is divided into by the small molecules of separating out, wherein depickling type maximum.
Along with the development of science and technology and the raising of human living standard, increasing organosilicon product is used in medical aspect.Due to the asepsis environment-protecting of silicon rubber, to human body nonirritant, be widely used in catheter and catheter.Usually these materials all need caking agent they to be bonded together, and mostly common caking agent is not environmentally, and directly contact human body skin easily causes allergy.Therefore, develop a kind of environment friendly silicon glue caking agent and seem particularly important.
Introduction about depickling type room temperature vulcanized silicone rubber is existing a lot, but mostly catalyzer is generally virose, can not be used for medical device.
Summary of the invention
For the weak point existed in above-mentioned technology, the invention provides single-component room temperature vulcanized developing rubber of a kind of condensed type and preparation method thereof, it is bonding that developing rubber prepared by the present invention can not only be applicable to catheter, and the technique of preparation is simple, easy to use, cheaper starting materials is easy to get, and is easy to realize suitability for industrialized production.
For achieving the above object, the invention provides the developing rubber that a kind of condensed type is single-component room temperature vulcanized, its component and weight are:
107 glue 80-120 parts, auxiliary agent 10-30 part, linking agent 2-20 part, photographic developer 1-10 part and filler 5-40 part.
Wherein, described 107 glue 100-120 parts, auxiliary agent 15-25 part, linking agent 5-12 part, photographic developer 3-8 part and filler 10-20 part.
Wherein, described 107 glue are hydroxy-end capped dimethyl silicone oil, and viscosity is 300-100000mPa.s and molecular weight is 100-40000mPa.s.
Wherein, described linking agent is the mixture of methyl triacetoxysilane, vinyltriacetoxy silane, dimethyldiacetoxy silane, methyl ethylene diacetoxy silane and four acetoxysilanes.
Wherein, described auxiliary agent is one or more in cementability additive, flow agent, pigment.
Wherein, described filler is hydrophabic silica.
Wherein, described photographic developer is nano level barium sulfate.
For achieving the above object, the preparation method of the developing rubber that the present invention also provides a kind of condensed type single-component room temperature vulcanized, comprises the following steps:
107 glue of 80-120 part and the auxiliary agent of 10-30 part are mixed according to weight, and remove air, form the first mixed solution under nitrogen protection for subsequent use by step 1 under vacuo;
Step 2, fills into the photographic developer of the filler of 5-40 part and 1-10 part in the first mixed solution and mixes, and slowly opens vacuum stirring after mixing completely, forms the second mixed solution after stirring 0.5-2h;
Step 3, adds the linking agent of 2-20 part in the second mixed solution, and normal temperature continues vacuum stirring 0.5-2h, obtains single-component room temperature vulcanized developing rubber after reaction terminates, and isolated aeroseal forms developing rubber after preserving.
Wherein, the developing rubber prepared belongs to single-component depickling type room temperature vulcanized silicone rubber, normal temperature extrude with the moisture in air after, 45min primary solidification, without mobility, complete cure after 8h.
Wherein, in described step 2, filler and photographic developer fill at twice in the first mixed solution, and the amount of filling into of each filler and photographic developer is 50%.
The invention has the beneficial effects as follows: compared with prior art, developing rubber that condensed type provided by the invention is single-component room temperature vulcanized and preparation method thereof, by 107 glue 80-120 parts of weight, auxiliary agent 10-30 part, linking agent 2-20 part, photographic developer 1-10 part and filler 5-40 part are under air-proof condition, developing rubber is obtained after mixing, this developing rubber good fluidity, there is certain operable time cementability good, under X-ray irradiates, development effect is obvious and accurate, and can realize well bonding to medical catheter, after testing, it is the single-component room-temperature-vulsilicone silicone rubber meeting medical standard.The present invention also has following advantage:
1) the development glue of the present invention's preparation, can be well bonding to silicone tube, and intensity is high, not embrittlement;
2) the development glue of the present invention's preparation, has good leveling property, the features such as the operating time is long, quick solidifying;
3) the development glue of the present invention's preparation, for single-component room temperature vulcanized, it is convenient especially to use, and raw material is easy to get, and synthesis technique is simple, is easy to realize suitability for industrialized production.
Accompanying drawing explanation
Fig. 1 is the first preparation figure of the single-component room temperature vulcanized developing rubber of condensed type of the present invention;
Fig. 2 is the second preparation figure of the single-component room temperature vulcanized developing rubber of condensed type of the present invention;
Fig. 3 is the preparation flow figure of the single-component room temperature vulcanized developing rubber of condensed type of the present invention;
Fig. 4 be in the present invention silane coupling agent to the comparison diagram of the cementability of unlike material.
Embodiment
In order to more clearly state the present invention, below in conjunction with accompanying drawing, the present invention is further described.
The developing rubber that condensed type of the present invention is single-component room temperature vulcanized, its component and weight are:
107 glue 80-120 parts, auxiliary agent 10-30 part, linking agent 2-20 part, photographic developer 1-10 part and filler 5-40 part.
Compared to prior art, the developing rubber that condensed type provided by the invention is single-component room temperature vulcanized, by 107 glue 80-120 parts of weight, auxiliary agent 10-30 part, linking agent 2-20 part, photographic developer 1-10 part and filler 5-40 part are under air-proof condition, developing rubber is obtained after mixing, this developing rubber good fluidity, have certain operable time cementability good, under X-ray irradiates, development effect is obvious and accurate, and can realize well bonding to medical catheter, after testing, be the single-component room-temperature-vulsilicone silicone rubber meeting medical standard.The present invention also has following advantage:
1) the development glue of the present invention's preparation, can be well bonding to silicone tube, and intensity is high, not embrittlement;
2) the development glue of the present invention's preparation, has good leveling property, the features such as the operating time is long, quick solidifying;
3) for gastroscopy or when inserting catheter, development effect is good, can life-time service;
4) the development glue of the present invention's preparation, for single-component room temperature vulcanized, it is convenient especially to use, and raw material is easy to get, and is easy to realize suitability for industrialized production.
The preparation of a kind for the treatment of agent provided by the invention, comprises the component as Fig. 1 by weight ratio, and the component of Fig. 1 is 107 glue 80-120 parts, auxiliary agent 10-30 part, linking agent 2-20 part, photographic developer 1-10 part and filler 5-40 part.Preferably, comprise as Fig. 2 component by weight ratio, the component of Fig. 2 is 107 glue 100-120 parts, auxiliary agent 15-25 part, linking agent 5-12 part, photographic developer 3-8 part and filler 10-20 part.By above material under isolated moisture, mix, then after vacuum row bubble, obtain medical developing rubber.
In the present embodiment, 107 glue are hydroxy-end capped dimethyl silicone oil, and viscosity is 300-100000mPa.s and molecular weight is 100-40000mPa.s.Linking agent is the mixture of methyl triacetoxysilane, vinyltriacetoxy silane, dimethyldiacetoxy silane, methyl ethylene diacetoxy silane and four acetoxysilanes.Auxiliary agent is one or more in cementability additive, flow agent, pigment.Filler is hydrophabic silica.Photographic developer is nano level barium sulfate.Certainly, in above-mentioned, the type of 107 glue, linking agent, auxiliary agent, filler and photographic developer is not all limited to.
Please consult Fig. 3 further, the preparation method of the developing rubber that the present invention also provides a kind of condensed type single-component room temperature vulcanized, comprises the following steps:
107 glue of 80-120 part and the auxiliary agent of 10-30 part are mixed according to weight, and remove air, form the first mixed solution under nitrogen protection for subsequent use by step S1 under vacuo.
Step S2, fills into the photographic developer of the filler of 5-40 part and 1-10 part in the first mixed solution and mixes, and slowly opens vacuum stirring after mixing completely, forms the second mixed solution after stirring 0.5-2h; In this step, filler and photographic developer fill at twice in the first mixed solution, and the amount of filling into of each filler and photographic developer is 50%.Certainly, be not limited at twice, can also divide multiple batches of, as long as ensure the amount embodiment all equally filled at every turn, all belong to the simple deformation to this case or conversion, fall into the protection domain of this case.
Step S3, adds the linking agent of 2-20 part in the second mixed solution, and normal temperature continues vacuum stirring 0.5-2h, obtains single-component room temperature vulcanized developing rubber after reaction terminates, and isolated aeroseal forms developing rubber after preserving.
Compared to prior art, the preparation method of the developing rubber that condensed type provided by the invention is single-component room temperature vulcanized, by 107 glue 80-120 parts of weight, auxiliary agent 10-30 part, linking agent 2-20 part, photographic developer 1-10 part and filler 5-40 part are under air-proof condition, developing rubber is obtained after mixing, this developing rubber good fluidity, have certain operable time cementability good, under X-ray irradiates, development effect is obvious and accurate, and can realize well bonding to medical catheter, after testing, be the single-component room-temperature-vulsilicone silicone rubber meeting medical standard.The present invention also has following advantage:
1) the development glue of the present invention's preparation, can be well bonding to silicone tube, and intensity is high, not embrittlement;
2) the development glue of the present invention's preparation, has good leveling property, the features such as the operating time is long, quick solidifying;
3) the development glue of the present invention's preparation, for single-component room temperature vulcanized, it is convenient especially to use, and raw material is easy to get, and synthesis technique is simple, is easy to realize suitability for industrialized production.
The developing rubber that present method prepares belongs to single-component depickling type room temperature vulcanized silicone rubber, normal temperature extrude with the moisture in air after, 45min primary solidification, without mobility, complete cure after 8h.And surface drying time is greater than 10min.
Based on above-mentioned preparation method, the invention provides following four specific embodiments,
Embodiment 1: the polydimethylsiloxane a1 by 600g viscosity being the dihydroxyl end-blocking of 20000mPa.s, 120g viscosity is stir under the dimethyl silicone oil b vacuum of 1000mPa.s; And then add 70g thermal silica c and 30g barium sulfate d in batches, incorporate final vacuum completely and stir 1h; To disappear vacuum with nitrogen, then add 30g methyl triacetoxysilane e and 6g di-t-butyl diacetoxy silane f fast, vacuum mixing 30min; Nitrogen disappears vacuum, adds pigment g, vacuum stirring 20min, and discharging sealing forms developing rubber after preserving.
Embodiment 2: the polydimethylsiloxane a1 by 500g viscosity being the dihydroxyl end-blocking of 20000mPa.s, 100g viscosity is stir under the dimethyl silicone oil b vacuum of 1000mPa.s; And then add 75g thermal silica c and 30g barium sulfate d in batches, incorporate final vacuum completely and stir 1h; To disappear vacuum with nitrogen, then add 30g methyl triacetoxysilane e and 6g di-t-butyl diacetoxy silane f fast, vacuum mixing 30min; Nitrogen disappears vacuum, and add the polydimethylsiloxane a2 that pigment g and 100g viscosity are the dihydroxyl end-blocking of 3000mPa.s, vacuum stirring 20min, discharging sealing forms developing rubber after preserving.
Embodiment 3: the polydimethylsiloxane a2 by 500g viscosity being the dihydroxyl end-blocking of 3000mPa.s, 100g viscosity is stir under the dimethyl silicone oil b vacuum of 1000mPa.s; And then add 80g thermal silica c and 30g barium sulfate d in batches, incorporate final vacuum completely and stir 1h; To disappear vacuum with nitrogen, then add 35g methyl triacetoxysilane e and 6g di-t-butyl diacetoxy silane f fast, vacuum mixing 30min; Nitrogen disappears vacuum, and add the polydimethylsiloxane a1 that pigment g and 100g viscosity are the dihydroxyl end-blocking of 20000mPa.s, vacuum stirring 20min, discharging sealing is preserved and formed developing rubber.
Embodiment 4: the polydimethylsiloxane a2 by 500g viscosity being the dihydroxyl end-blocking of 3000mPa.s, 100g viscosity is the dimethyl silicone oil b of 1000mPa.s, stirs under 6g hexamethyldisilazane h vacuum; And then add 80g thermal silica c and 30g barium sulfate d in batches, incorporate final vacuum completely and stir 1h; To disappear vacuum with nitrogen, then add 40g methyl triacetoxysilane e and 6g di-t-butyl diacetoxy silane f fast, vacuum mixing 30min; Nitrogen disappears vacuum, and add the polydimethylsiloxane a2 that pigment g and 100g viscosity are the dihydroxyl end-blocking of 3000mPa.s, vacuum stirring 20min, discharging sealing forms developing rubber after preserving.
The performance test methods of developing rubber is as follows: extruding glue is in the tetrafluoroethylene plate of 2mm to the degree of depth, with manual time-keeping record surface drying time; Solidify rear surface planeness completely, dry and comfortable degree, and to silica gel catheter cementability, hardness etc., as shown in Figure 4, as can be seen from Table 1, embodiment 2,3, the cementability of 4 is all fine for concrete data.Wherein embodiment 3, embodiment 4 surface drying time and set time are all relatively good, and colloid hardness is also high, good leveling property, are more suitable for the bonding of catheter.
Be only several specific embodiment of the present invention above, but the present invention is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (10)
1. the developing rubber that condensed type is single-component room temperature vulcanized, is characterized in that, its component and weight are: 107 glue 80-120 parts, auxiliary agent 10-30 part, linking agent 2-20 part, photographic developer 1-10 part and filler 5-40 part.
2. the developing rubber that condensed type according to claim 1 is single-component room temperature vulcanized, is characterized in that, described 107 glue 100-120 parts, auxiliary agent 15-25 part, linking agent 5-12 part, photographic developer 3-8 part and filler 10-20 part.
3. the developing rubber that condensed type according to claim 1 is single-component room temperature vulcanized, is characterized in that, described 107 glue are hydroxy-end capped dimethyl silicone oil, and viscosity is 300-100000mPa.s and molecular weight is 100-40000mPa.s.
4. the developing rubber that condensed type according to claim 1 is single-component room temperature vulcanized, it is characterized in that, described linking agent is the mixture of methyl triacetoxysilane, vinyltriacetoxy silane, dimethyldiacetoxy silane, methyl ethylene diacetoxy silane and four acetoxysilanes.
5. the developing rubber that condensed type according to claim 1 is single-component room temperature vulcanized, is characterized in that, described auxiliary agent is one or more in cementability additive, flow agent, pigment.
6. the developing rubber that condensed type according to claim 1 is single-component room temperature vulcanized, is characterized in that, described filler is hydrophabic silica.
7. the developing rubber that condensed type according to claim 1 is single-component room temperature vulcanized, is characterized in that, described photographic developer is nano level barium sulfate.
8. a preparation method for the developing rubber that condensed type is single-component room temperature vulcanized, comprises the following steps:
107 glue of 80-120 part and the auxiliary agent of 10-30 part are mixed according to weight, and remove air, form the first mixed solution under nitrogen protection for subsequent use by step 1 under vacuo;
Step 2, fills into the photographic developer of the filler of 5-40 part and 1-10 part in the first mixed solution and mixes, and slowly opens vacuum stirring after mixing completely, forms the second mixed solution after stirring 0.5-2h;
Step 3, adds the linking agent of 2-20 part in the second mixed solution, and normal temperature continues vacuum stirring 0.5-2h, obtains single-component room temperature vulcanized developing rubber after reaction terminates, and isolated aeroseal forms developing rubber after preserving.
9. the preparation method of the developing rubber that condensed type according to claim 8 is single-component room temperature vulcanized, it is characterized in that, the developing rubber prepared belongs to single-component depickling type room temperature vulcanized silicone rubber, normal temperature extrude with the moisture in air after, 45min primary solidification, without mobility, complete cure after 8h.
10. the preparation method of the developing rubber that condensed type according to claim 8 is single-component room temperature vulcanized, is characterized in that, in described step 2, filler and photographic developer fill at twice in the first mixed solution, and the amount of filling into of each filler and photographic developer is 50%.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109464710A (en) * | 2018-12-17 | 2019-03-15 | 周利 | A kind of silicone catheter development RTV liquid end socket glue |
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| CN1482200A (en) * | 2003-05-15 | 2004-03-17 | 四川大学 | Optically transparent room temperature solidifying silicone mixture for sealing and process of preparation |
| CN101724268A (en) * | 2009-11-27 | 2010-06-09 | 张启发 | Method for production of silicone adhesive |
| CN104826175A (en) * | 2015-05-21 | 2015-08-12 | 天津市医好用精密塑胶科技有限公司 | Medicinal silica gel developing tube and preparation method thereof |
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- 2015-08-13 CN CN201510497777.8A patent/CN105038252A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1482200A (en) * | 2003-05-15 | 2004-03-17 | 四川大学 | Optically transparent room temperature solidifying silicone mixture for sealing and process of preparation |
| CN101724268A (en) * | 2009-11-27 | 2010-06-09 | 张启发 | Method for production of silicone adhesive |
| CN104826175A (en) * | 2015-05-21 | 2015-08-12 | 天津市医好用精密塑胶科技有限公司 | Medicinal silica gel developing tube and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109464710A (en) * | 2018-12-17 | 2019-03-15 | 周利 | A kind of silicone catheter development RTV liquid end socket glue |
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