CN110724490A - Transparent silicone sealant with long-afterglow luminescence function and preparation method and application thereof - Google Patents
Transparent silicone sealant with long-afterglow luminescence function and preparation method and application thereof Download PDFInfo
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- CN110724490A CN110724490A CN201911095496.4A CN201911095496A CN110724490A CN 110724490 A CN110724490 A CN 110724490A CN 201911095496 A CN201911095496 A CN 201911095496A CN 110724490 A CN110724490 A CN 110724490A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J183/00—Adhesives based on 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; Adhesives based on derivatives of such polymers
- C09J183/04—Polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
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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
Abstract
The invention provides a transparent silicone sealant with a long-afterglow luminescent function, and a preparation method and application thereof. The sealant disclosed by the invention is prepared from the following raw materials in parts by mass: 40-50 parts of 107 glue with viscosity of 70000-90000mPas, 5-15 parts of 107 glue with viscosity of 450000-550000mPas, 5-15 parts of fumed silica, 4-8 parts of a cross-linking agent, 0.3-1.2 parts of a silane coupling agent, 0.1-0.2 part of a catalyst, 2-8 parts of an organic long afterglow luminescent agent and 20-40 parts of white oil. The preparation method is simple; the organic long afterglow luminescent agent is adopted, so that the cost is lower, and the organic long afterglow luminescent agent has better compatibility with colloid; the various raw materials play a synergistic role to ensure that the prepared sealant has a long-afterglow luminous function and has the advantages of good transparency and insulativity, better mechanical property and better adhesive property; the sealing structure is suitable for sealing outdoor buildings, electric power outdoor transformation equipment and the like.
Description
Technical Field
The invention relates to a transparent silicone sealant with a long-afterglow luminescent function, and a preparation method and application thereof, belonging to the technical field of preparation of organic silicon rubber.
Background
The traditional inorganic long afterglow luminescent materials (LPL) comprise four categories, namely sulfide long afterglow luminescent materials, aluminate long afterglow luminescent materials, silicate long afterglow luminescent materials and rare earth long afterglow luminescent materials. However, the LPL material based on the inorganic system not only needs expensive rare elements, but also has the preparation temperature of over 1000 ℃ and higher energy consumption; in addition, many steps are required from insoluble aluminates to finished products, such as grinding the compound to micron-sized powders to wet into a solvent or matrix; the light scattering of the above-mentioned powders also affects the transparency of the LPL material. Therefore, the defects of expensive rare earth elements and complex synthesis process in the inorganic long-afterglow luminescent material limit the further development thereof.
The energy-storage luminous silicone sealant which is strong in stability, can absorb sunlight or an artificial light source and slowly releases light energy for luminescence is prepared by adding a colorful long-afterglow energy-storage luminous agent into the traditional silicone sealant and mainly adding an inorganic long-afterglow luminous material through optimized addition proportioning. However, the inorganic long afterglow luminescent material added into the system can affect the transparency of the silicone adhesive, and has the defects of high price, complex process, high cost, poor compatibility with a substrate and poor electrical sealing insulation property. For example, chinese patent document CN110229647A discloses a fluorescent silicone sealant for glass decoration, which has a transparency of 70 to 85%, and comprises the following raw materials in parts by weight: hydroxyl-terminated dimethylsiloxane: 85-110 parts of plasticizer: 10-25 parts; silicon dioxide: 10-25 parts; fluorescent powder: 0.1-2 parts; a crosslinking agent: 6-9 parts of a solvent; catalyst: 0.01-0.3 part; the silicone sealant prepared by the invention has a transparent fluorescent dazzling effect under the irradiation of lamplight. But the used fluorescent powder is rare earth tricolor fluorescent powder, namely, the fluorescent powder relates to rare earth elements, and the cost is higher; meanwhile, the defects of poor compatibility with a substrate and poor insulation when applied to electric power sealing exist, inorganic rare earth tricolor fluorescent powder is physically dispersed in the silicone sealant, and the light scattering of the powder can reduce the transparency of the sealant; in addition, the invention needs a light source, can not store light, and can not emit light for a long time without the light source; the crosslinking agent used is an acidic crosslinking system, and can only be used for glass substrates, but can be used for metal or other materials which are corroded. For another example, chinese patent document CN101586017A discloses an energy storage and light emitting silicone sealant, which comprises the following components in parts by weight: 85-100 parts of alpha, omega-dihydroxy polysiloxane, 10-25 parts of silicon dioxide, 3-15 parts of cross-linking agent, 0.2-2 parts of catalyst, 1-5 parts of coupling agent, 3-10 parts of colorful long-afterglow energy-storage luminescent agent, 0.1-2 parts of light stabilizer and 1-20 parts of superfine alkali-free glass fiber powder; the silicone sealant has long energy storage and luminescence time, can improve the light transmittance by adding the superfine alkali-free glass fiber powder, is beneficial to fully absorbing light energy by colloid and prolongs the afterglow time. The invention uses a plurality of kinds of raw materials, the used colorful long afterglow energy storage luminous agent is an aluminate system energy storage luminous agent, aluminate is used as a substrate, rare earth ions are used as a main activator, phosphorus pentoxide, magnesium oxide or boron trioxide are added as afterglow intensifier, and the cost is higher as the same relates to rare earth elements; meanwhile, the added luminescent agent has the defects of poor compatibility with a substrate and poor electrical sealing insulation, the aluminate system energy storage luminescent agent needs to be ground into micron-sized powder to be physically dispersed in the silicone sealant, and the light scattering of the powder can reduce the transparency of the sealant.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a transparent silicone sealant with a long-afterglow luminescent function, and a preparation method and application thereof. The preparation method is simple; the organic long afterglow luminescent agent is adopted, so that the cost is lower, and the organic long afterglow luminescent agent has better compatibility with colloid; the silicone sealant prepared by the method has the advantages of long afterglow luminescence function, good transparency and good insulativity due to the synergistic effect of various raw materials; the sealing structure is suitable for sealing outdoor buildings, electric power outdoor transformation equipment and the like.
The technical scheme of the invention is as follows:
a transparent silicone sealant with a long afterglow luminescence function is prepared from the following raw materials in parts by mass: 40-50 parts of 107 glue with viscosity of 70000-90000mPas, 5-15 parts of 107 glue with viscosity of 450000-550000mPas, 5-15 parts of fumed silica, 4-8 parts of a cross-linking agent, 0.3-1.2 parts of a silane coupling agent, 0.1-0.2 part of a catalyst, 2-8 parts of an organic long afterglow luminescent agent and 20-40 parts of white oil.
According to the invention, the 107 glue with the viscosity of 70000-90000mPas and the 107 glue with the viscosity of 450000-550000mPas are commercially available. Preferably, the 107 glue is a hydroxyl or alkoxy terminated polydimethylsiloxane with viscosities of 80000mPas and 500000mPas, respectively.
According to the invention, the specific surface area of the fumed silica is preferably 150-200m3The mass content of silicon dioxide is more than or equal to 99.8 percent. The fumed silica can be obtained commercially.
According to the invention, the cross-linking agent is one or two of methyl tributyl ketoxime silane or vinyl tributyrinoxime silane; preferably, the crosslinking agent is a combination of methyl tributyrinoxime silane and vinyl tributyrinoxime silane. The methyl tributyl ketoxime silane can be obtained commercially, and the purity is more than or equal to 95 wt%; the vinyl tributyrinoxime silane can be obtained commercially, and the purity is more than or equal to 95 wt%.
According to the invention, the silane coupling agent is preferably one or two of 3-aminopropyltriethoxysilane (KH550) or N- (beta-aminoethyl) -gamma-aminopropyltrimethoxysilane (KH 792); preferably, the silane coupling agent is a combination of 3-aminopropyltriethoxysilane and N- (beta-aminoethyl) -gamma-aminopropyltrimethoxysilane. The KH550 and the KH792 are commercially available, and the purity is more than or equal to 95 wt%.
Preferably according to the invention, the catalyst is dibutyltin dilaurate or di-n-octyltin dilaurate; preferably, the catalyst is dibutyltin dilaurate. The catalyst is commercially available.
According to the invention, the organic long afterglow luminescent agent is preferably one or the combination of more than two of the compounds shown in the formulas I-VII;
the organic long afterglow luminescent agent can be prepared by the prior art. Among these, the compounds of formula I-V can be prepared in the literature "defined State Modulation for Organic afterflow: Materials and applications, Advanced Materials, Volume 28, issue 45, December 7.2016, pages 9920-9940".
Preferably, the white oil is 3# white oil, and the distillation range is 210-290 ℃; are commercially available.
According to the invention, the transparent silicone sealant with the long-afterglow luminescent function is preferably prepared from the following raw materials in parts by mass: 40-50 parts of 107 glue with viscosity of 70000-, 90000-mPas, 5-15 parts of 107 glue with viscosity of 450000-, 550000-mPas, 5-15 parts of fumed silica, 3-6 parts of methyl tributyroximosilane, 1-2 parts of vinyl tributyroximosilane, 0.2-0.8 part of 3-aminopropyltriethoxysilane (KH550), 0.1-0.4 part of N- (beta-aminoethyl) -gamma-aminopropyltrimethoxysilane (KH792), 0.1-0.2 part of dibutyltin dilaurate, 2-8 parts of an organic long afterglow luminescent agent and 20-40 parts of white oil.
According to the invention, a preferable scheme is that the transparent silicone sealant with a long-afterglow luminescent function is prepared from the following raw materials in parts by mass: 45 parts of 107 glue with the viscosity of 80000mPas, 9 parts of 107 glue with the viscosity of 500000mPas, 11 parts of fumed silica, 4.5 parts of methyl tributyrinoxime silane, 1.2 parts of vinyl tributyrinoxime silane, 0.5 part of 3-aminopropyltriethoxysilane (KH550), 0.287 part of N- (beta-aminoethyl) -gamma-aminopropyltrimethoxysilane (KH792), 0.14 part of dibutyltin dilaurate, 5 parts of an organic long afterglow luminescent agent and 30 parts of white oil.
The preparation method of the transparent silicone sealant with long afterglow luminescence function comprises the following steps:
uniformly mixing a 107 glue with the viscosity of 70000-90000mPas, a 107 glue with the viscosity of 450000-550000mPas, white oil and a crosslinking agent under vacuum; adding fumed silica, and mixing; adding a silane coupling agent and a catalyst and uniformly mixing; and then adding the organic long afterglow luminescent agent and uniformly mixing to obtain the silicone sealant.
Preferably, according to the present invention, the silicone sealant needs to be stored under vacuum.
The application of the transparent silicone sealant with the long afterglow luminescence function is applied to sealing of outdoor buildings or outdoor power transformation equipment.
The invention has the following technical characteristics and beneficial effects:
(1) the preparation method is simple, and the specific charging sequence can ensure that the obtained silicone sealant has better viscosity and thixotropy. The silicone sealant obtained by the invention is stored in vacuum; when in use, the sealant is crosslinked into a three-dimensional reticular polymer solid at room temperature under the initiation of air moisture, thereby achieving the purpose of sealing. In the air, 107 glue in the sealant is subjected to a crosslinking reaction in the presence of a crosslinking agent to prepare a network polymer; the fumed silica plays a role in reinforcement; the organic long-afterglow luminescent material provides a long-afterglow luminescent function, has better compatibility with the reticular polymer due to a similar compatibility principle, exists in the polymer system through the physical interaction with the reticular polymer system, and does not scatter in a colloid system, so that the transparency of the sealing adhesive after curing is good. The invention uses 107 glue with different viscosities, can adjust the viscosity of the silicone glue and the mechanical property after curing, prevent the sealant from cracking; the cross-linking agent and the silane coupling agent are neutral cross-linking agents, do not corrode materials such as metal, can be applied to various materials such as glass and metal, and have wide application range. The silicone sealant with long afterglow luminescence function, good transparency, good insulation property, good mechanical property and good adhesive property is prepared by the mutual influence and combined action of various raw materials.
(2) The long-afterglow luminescent material used in the traditional silicone sealant is an inorganic long-afterglow luminescent material, relates to expensive rare earth elements, and has higher cost and more complex synthesis process; and the used inorganic long afterglow luminescent material is generally granular solid particles, and after the silicone adhesive sealant system is added, because the compatibility with the colloid system is poor, the agglomeration of the granules is easy to occur, and the light scattering is easy to occur, so that the transparency of the sealant is influenced, even the sealant is not transparent, and the attractiveness and the light transmittance are influenced. The organic long-afterglow luminescent material used in the invention just overcomes the defects. The organic long afterglow luminescent material has the advantages of low price, simple and convenient synthesis, good compatibility with an organic polymerization system, flexibility, easy modification and the like. The invention does not use expensive rare earth elements, greatly reduces the cost of the product, has low price and simple and convenient synthesis, and is easy to modify by using the organic long-afterglow luminescent material; the organic long-afterglow luminescent material contains a large amount of organic functional groups which are easy to be combined with the silicone sealant through physical interaction, and is good in compatibility with a colloid system based on a similar compatibility principle, so that the transparency of the silicone adhesive is not changed, and the prepared sealant has good transparency.
(3) The inorganic long afterglow luminescent material used in the traditional silicone sealant contains inorganic metal particles, and the insulating property is poor when the inorganic long afterglow luminescent material is used in electric power sealing. The organic long-afterglow luminescent agent is an organism, and after the organic long-afterglow luminescent agent is added, the insulativity of the silicone sealant is not influenced.
(4) The silicone sealant prepared by the invention can absorb the light energy generated by sunlight or an artificial light source and slowly release the light energy due to the addition of the organic long afterglow luminescent agent, and has a luminescent warning effect; the silicone sealant has long afterglow luminescence function, good transparency and insulation property, and is suitable for sealing outdoor buildings, outdoor power transformation equipment and the like.
Detailed Description
The present invention is further illustrated by, but is not limited to, the following specific examples.
The raw materials used in the examples are conventional raw materials and can be obtained commercially; the methods are prior art unless otherwise specified.
In the examples, 107 gums with viscosities of 80000mPas, 500000mPas, 85000mPas and 540000mPas are available from silicone materials of yohimoto, Shandong; the specific surface area of the fumed silica is 150m3Per gram, purity of silicon dioxide is not less than99.8 wt% of silicone material available from Shandong Yue, Inc.; the white oil is 3# white oil sold by Jingmen division of China petrochemical industry, Inc.
Example 1
A transparent silicone sealant with a long afterglow luminescence function is prepared from the following raw materials in parts by mass: 450g of 107 glue with the viscosity of 80000mPas, 90g of 107 glue with the viscosity of 500000mPas, 110g of fumed silica, 45g of methyl tributyroximosilane, 12g of vinyl tributyroximosilane, 5g of 3-aminopropyltriethoxysilane (KH550), 2.87g of N- (beta-aminoethyl) -gamma-aminopropyltrimethoxysilane (KH792), 1.4g of dibutyltin dilaurate, 50g of an organic long afterglow luminescent agent (a compound shown in a formula II) and 300g of white oil.
The preparation method of the transparent silicone sealant with long afterglow luminescence function comprises the following steps:
(1) under the condition of vacuum pumping, adding 107 glue and white oil with two viscosities into a high-speed dispersion machine according to the proportion, adding methyl tributyl ketoxime silane and vinyl tributyloxime silane, stirring for 5 minutes at room temperature, and uniformly mixing;
(2) adding fumed silica under the vacuum condition, stirring for 30 minutes, and uniformly mixing;
(3) under the condition of vacuumizing, adding KH550, KH792 and a catalyst dibutyltin dilaurate, stirring for 30 minutes, and uniformly mixing;
(4) under the condition of vacuum pumping, adding the organic long afterglow luminescent agent, continuously stirring for 30 minutes and uniformly mixing to obtain the silicone sealant.
Example 2
A transparent silicone sealant with a long afterglow luminescence function is prepared from the following raw materials in parts by mass: 400g of 107 glue with the viscosity of 80000mPas, 50g of 107 glue with the viscosity of 500000mPas, 50g of fumed silica, 30g of methyl tributyroximosilane, 10g of vinyl tributyroximosilane, 2g of 3-aminopropyltriethoxysilane (KH550), 1g of N- (beta-aminoethyl) -gamma-aminopropyltrimethoxysilane (KH792), 1g of dibutyltin dilaurate, 20g of an organic long afterglow luminescent agent (a compound of formula III) and 200g of white oil.
The preparation method of the transparent silicone sealant with long afterglow luminescence function is the same as that of the example 1.
Example 3
A transparent silicone sealant with a long afterglow luminescence function is prepared from the following raw materials in parts by mass: 500g of 107 glue with the viscosity of 80000mPas, 150g of 107 glue with the viscosity of 500000mPas, 150g of fumed silica, 60g of methyl tributyroximosilane, 20g of vinyl tributyroximosilane, 8g of 3-aminopropyltriethoxysilane (KH550), 4g of N- (beta-aminoethyl) -gamma-aminopropyltrimethoxysilane (KH792), 2g of dibutyltin dilaurate, 80g of an organic long afterglow luminescent agent (a compound of formula IV) and 400g of white oil.
The preparation method of the transparent silicone sealant with long afterglow luminescence function is the same as that of the example 1.
Example 4
A transparent silicone sealant with a long afterglow luminescence function is prepared from the following raw materials in parts by mass: 450g of 107 glue with the viscosity of 85000mPas, 90g of 107 glue with the viscosity of 540000mPas, 110g of fumed silica, 45g of methyl tributyroximosilane, 12g of vinyl tributyroximosilane, 5g of 3-aminopropyltriethoxysilane (KH550), 2.87g of N- (beta-aminoethyl) -gamma-aminopropyltrimethoxysilane (KH792), 1.4g of dibutyltin dilaurate, 50g of an organic long afterglow luminescent agent (a compound shown in the formula V) and 300g of white oil.
The preparation method of the transparent silicone sealant with long afterglow luminescence function is the same as that of the example 1.
Comparative example 1
The silicone sealant is prepared from the following raw materials in parts by mass: 540g of 107 glue with the viscosity of 80000mPas, 110g of fumed silica, 45g of methyl tributyrinoxime silane, 12g of vinyl tributyrinoxime silane, 5g of 3-aminopropyltriethoxysilane (KH550), 2.87g of N- (beta-aminoethyl) -gamma-aminopropyltrimethoxysilane (KH792), 1.4g of dibutyltin dilaurate, 50g of an organic long-afterglow luminescent agent (a compound of a formula II) and 300g of white oil.
The preparation of the silicone sealant described above was consistent with example 1.
Comparative example 2
The silicone sealant is prepared from the following raw materials in parts by mass: 540g of 107 glue with the viscosity of 500000mPas, 110g of fumed silica, 45g of methyl tributyrinoxime silane, 12g of vinyl tributyrinoxime silane, 5g of 3-aminopropyltriethoxysilane (KH550), 2.87g of N- (beta-aminoethyl) -gamma-aminopropyltrimethoxysilane (KH792), 1.4g of dibutyltin dilaurate, 50g of an organic long-afterglow luminescent agent (a compound shown in a formula II) and 300g of white oil.
The preparation of the silicone sealant described above was consistent with example 1.
Comparative example 3
The silicone sealant is prepared from the following raw materials in parts by mass: 450g of 107 glue with the viscosity of 80000mPas, 90g of 107 glue with the viscosity of 500000mPas, 110g of fumed silica, 45g of methyl tributyroximosilane, 12g of vinyl tributyroximosilane, 5g of 3-aminopropyltriethoxysilane (KH550), 2.87g of N- (beta-aminoethyl) -gamma-aminopropyltrimethoxysilane (KH792), 1.4g of dibutyltin dilaurate, 50g of an inorganic long afterglow luminescent agent and 300g of white oil. The inorganic long afterglow luminescent agent is an aluminate system light storage luminescent agent (available from the Jinnanhao science and technology Co., Ltd.).
The preparation of the silicone sealant described above was consistent with example 1.
Test examples
The performance of the silicone sealant prepared according to the embodiment of the invention and the comparative example is tested, and the test standard is referred to: GB/T13477.6-2002, GB/T13477.5-2002, GB/T13477.19-2017, GB/T13477.2-2002, GB/T32369-2015, GB/T13477.3-2017, GB/T13477.17-2017, GB/T13477.10-2017, GB/T528-2009 and GB/T24135-2009. The test results are shown in the following table:
TABLE 1 Performance index data
TABLE 2 Performance index data
As can be seen from the comparison of the data in tables 1 and 2, the silicone sealant with long afterglow luminescence function, transparency, good mechanical property and good adhesive property is prepared by the mutual influence and combined action of various raw materials.
Claims (9)
1. The transparent silicone sealant with the long afterglow luminescence function is characterized by comprising the following raw materials in parts by mass: 40-50 parts of 107 glue with viscosity of 70000-90000mPas, 5-15 parts of 107 glue with viscosity of 450000-550000mPas, 5-15 parts of fumed silica, 4-8 parts of a cross-linking agent, 0.3-1.2 parts of a silane coupling agent, 0.1-0.2 part of a catalyst, 2-8 parts of an organic long afterglow luminescent agent and 20-40 parts of white oil.
2. The transparent silicone sealant with long afterglow luminescence function of claim 1, wherein the 107 glue is polydimethylsiloxane terminated by hydroxyl or alkoxy, and the viscosity is 80000mPas and 500000mPas respectively.
3. The transparent silicone sealant with long afterglow luminescence function according to claim 1, characterized by comprising one or more of the following conditions:
a. the specific surface area of the fumed silica is 150-200m3The mass content of silicon dioxide is more than or equal to 99.8 percent;
b. the cross-linking agent is one or two of methyl tributyrinoxime silane or vinyl tributyrinoxime silane; preferably, the cross-linking agent is a combination of methyl tributyrinoxime silane and vinyl tributyrinoxime silane;
c. the silane coupling agent is one or two of 3-aminopropyltriethoxysilane (KH550) or N- (beta-aminoethyl) -gamma-aminopropyltrimethoxysilane (KH 792); preferably, the silane coupling agent is a combination of 3-aminopropyltriethoxysilane and N- (beta-aminoethyl) -gamma-aminopropyltrimethoxysilane;
d. the catalyst is dibutyltin dilaurate or di-n-octyltin dilaurate; preferably, the catalyst is dibutyltin dilaurate;
e. the white oil is 3# white oil, and the distillation range is 210-290 ℃.
4. The silicone sealant with long afterglow luminescence function as claimed in claim 1, wherein the organic long afterglow luminescence agent is one or more of the following compounds of formula I-formula VII;
5. the transparent silicone sealant with long afterglow luminescence function as claimed in claim 1, wherein the transparent silicone sealant with long afterglow luminescence function comprises the following raw materials by mass: 40-50 parts of 107 glue with viscosity of 70000-, 90000-mPas, 5-15 parts of 107 glue with viscosity of 450000-, 550000-mPas, 5-15 parts of fumed silica, 3-6 parts of methyl tributyroximosilane, 1-2 parts of vinyl tributyroximosilane, 0.2-0.8 part of 3-aminopropyltriethoxysilane (KH550), 0.1-0.4 part of N- (beta-aminoethyl) -gamma-aminopropyltrimethoxysilane (KH792), 0.1-0.2 part of dibutyltin dilaurate, 2-8 parts of an organic long afterglow luminescent agent and 20-40 parts of white oil.
6. The transparent silicone sealant with long afterglow luminescence function as claimed in claim 1, wherein the transparent silicone sealant with long afterglow luminescence function comprises the following raw materials by mass: 45 parts of 107 glue with the viscosity of 80000mPas, 9 parts of 107 glue with the viscosity of 500000mPas, 11 parts of fumed silica, 4.5 parts of methyl tributyrinoxime silane, 1.2 parts of vinyl tributyrinoxime silane, 0.5 part of 3-aminopropyltriethoxysilane (KH550), 0.287 part of N- (beta-aminoethyl) -gamma-aminopropyltrimethoxysilane (KH792), 0.14 part of dibutyltin dilaurate, 5 parts of an organic long afterglow luminescent agent and 30 parts of white oil.
7. The method for preparing the silicone sealant with long afterglow luminescence function as claimed in any one of claims 1 to 6, which comprises the steps of:
uniformly mixing a 107 glue with the viscosity of 70000-90000mPas, a 107 glue with the viscosity of 450000-550000mPas, white oil and a crosslinking agent under vacuum; adding fumed silica, and mixing; adding a silane coupling agent and a catalyst and uniformly mixing; and then adding the organic long afterglow luminescent agent and uniformly mixing to obtain the silicone sealant.
8. The method for preparing the transparent silicone sealant with long-afterglow luminescent function as claimed in claim 7, wherein the silicone sealant needs to be preserved under vacuum.
9. The use of the silicone sealant with long afterglow luminescence function as claimed in any one of claims 1 to 6 for sealing outdoor buildings or outdoor power transformation equipment.
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| CN111518134A (en) * | 2020-05-11 | 2020-08-11 | 南京邮电大学 | Dynamic resonance aggregation-induced emission material for explosive detection and preparation method and application thereof |
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