CN115305050A - Adhesive addition type organic silicon composition and preparation method thereof - Google Patents

Adhesive addition type organic silicon composition and preparation method thereof Download PDF

Info

Publication number
CN115305050A
CN115305050A CN202211075029.7A CN202211075029A CN115305050A CN 115305050 A CN115305050 A CN 115305050A CN 202211075029 A CN202211075029 A CN 202211075029A CN 115305050 A CN115305050 A CN 115305050A
Authority
CN
China
Prior art keywords
silicone oil
tackifier
vinyl
hydrogen
gamma
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202211075029.7A
Other languages
Chinese (zh)
Inventor
孙长兵
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Fuming Sealing Material Co ltd
Original Assignee
Shanghai Fuming Sealing Material Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Fuming Sealing Material Co ltd filed Critical Shanghai Fuming Sealing Material Co ltd
Priority to CN202211075029.7A priority Critical patent/CN115305050A/en
Publication of CN115305050A publication Critical patent/CN115305050A/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J183/00Adhesives 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
    • C09J183/04Polysiloxanes
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02Non-macromolecular additives
    • C09J11/04Non-macromolecular additives inorganic
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02Non-macromolecular additives
    • C09J11/06Non-macromolecular additives organic
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/08Macromolecular additives
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals
    • C08K2003/2227Oxides; Hydroxides of metals of aluminium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

The invention discloses an adhesive addition type organic silicon composition and a preparation method thereof, the composition comprises vinyl silicone oil, hydrogen-containing silicone oil, a platinum catalyst, a tackifier, an auxiliary tackifier, an inhibitor and a filler, wherein the tackifier is selected from at least two tackifiers from D1-D3, the tackifier comprises D1, D1 is an oligomer of vinyl trialkoxy silane, D2 is an epoxy group coupling agent or/and an oligomer thereof, D3 is a methacryloxy group coupling agent or/and an oligomer thereof, and the auxiliary tackifier is a titanate coupling agent. The invention uses vinyl trialkoxy silane oligomer and silane coupling agent containing polar groups such as epoxy group or methacryloxy group and/or oligomer thereof and titanate coupling agent in a matching way, can obtain good bonding effect on the surfaces of metal and plastic, and the used tackifier is industrial product, relatively easy to obtain, pollution-free in preparation process and good in safety.

Description

Adhesive addition type organic silicon composition and preparation method thereof
Technical Field
The invention relates to the technical field of organic silicon bonding and pouring sealant, and relates to an adhesive addition type organic silicon composition.
Background
The addition curing type organic silicon has the characteristics of high and low temperature resistance, aging resistance, low shrinkage, deep curing, excellent electrical insulation and the like, and is widely applied to the fields of moisture protection, insulation sealing, shock prevention and isolation and the like of electronic components and industrial equipment.
However, the cured product thereof has low molecular polarity and poor adhesion to other materials, and when damaged by external force, it is almost completely peeled from the substrate, which affects the use thereof. Therefore, the industry has been improving the adhesion by improving the formulation, so that the application is more stable and reliable.
The improvement method is mainly to add a plurality of polar group-containing organic silicon tackifiers in the formula so as to improve the bonding performance. However, the effect of thickening is very limited by simply adding different types of low-molecular coupling agents to the formulation in a physical mixture. The preferred method is to add a self-synthesized adhesion promoter with a specific molecular structure to the formulation. The molecular structure of the tackifier comprises double bonds or hydrosilyl on one hand, and can participate in addition reaction to form chemical bonds with the main chain of the silicone rubber molecule; on the other hand, one or more of polar groups such as epoxy group, amino group, (meth) acryloxy group, isocyanate group, borate group, alkoxy group and the like can form chemical bonds or hydrogen bonds with the base material directly or after reaction. Thus, firm chemical crosslinking is formed between the cured silicone rubber main chain and the base material through the tackifier, so that the adhesion and the sealing performance are greatly improved. Meanwhile, the tackifier is still an organic silicon material, has good compatibility with a formula system, is stable to store, and does not bring other adverse effects.
For a long time, a plurality of tackifiers are synthesized by the technicians in the field and added into the formula of addition type organic silica gel or encapsulation materials so as to improve the adhesion and the sealing property of materials such as metal, plastic and the like and obtain certain effect. Such as: CN102898972A and CN102994004A are prepared by heating and non-aqueous condensing monomers such as hydroxyl-containing acrylate or hydroxyl-containing allyl ether and the like and alkoxy silane coupling agents such as epoxy group, acryloxy group and the like under the catalysis of titanate, and purifying by dealcoholization under reduced pressure to prepare the tackifier; CN108239284A is prepared by performing hydrolytic condensation on vinyl alkoxy silane and coupling agents such as epoxy group and acryloxy alkoxy silane in a solvent/water mixture under the catalysis of acid, and then performing purification steps such as neutralization, liquid separation, water washing, drying, reduced pressure reduction and low pressure reduction to prepare a tackifier; CN107674608A and CN111484620A are prepared by reacting dihydric alcohol acrylate containing carbon-carbon double bond, vinyl coupling agent and/or allyl glycidyl ether with hydrogen-containing silicone oil or D4 H Performing catalytic addition by a platinum complex, adsorbing to remove platinum, and performing reduced pressure reduction and purification to obtain the tackifier; CN104531003A is to perform ester exchange between boric acid ester and active hydroxyl compound containing unsaturated bond, remove low and purify to obtain the tackifier containing boron and unsaturated bond.
The molecular structure of the tackifier contains one or more polar groups except alkoxy, such as epoxy group, (methyl) acryloxy group and the like, besides unsaturated bonds or silicon-hydrogen bonds which can participate in main chain addition reaction, and plays a certain role in improving the adhesiveness and the sealing property of the addition type silicone rubber on the surfaces of different metals and plastics. However, the synthesis process of the tackifiers is still complex, waste water and waste gas are generated, and certain environmental protection and safety problems exist.
Therefore, the development of the adhesive addition type organic silicon composition which has simple synthesis process, low cost and environment-friendly and safe preparation process is of great practical significance.
Disclosure of Invention
Because the prior art has the defects, the invention provides the adhesive addition type organic silicon composition which has the advantages of simple synthesis process, low cost and environment-friendly and safe preparation process, and aims to solve the problems of complex process, harsh reaction conditions (mostly comprising the steps of heating, separating, reducing pressure and the like, and using a large amount of solvents, drying agents and adsorbents) and environment-friendly and potential safety hazards in the preparation process of the existing addition curing type organic silicon tackifier.
In order to achieve the purpose, the invention provides the following technical scheme:
an adhesive addition silicone composition comprising the following components:
A. vinyl silicone oil;
B. hydrogen-containing silicone oil;
C. a platinum catalyst;
D. a tackifier selected from at least two tackifiers selected from the following D1 to D3 and including D1;
d1 is an oligomer of vinyl trialkoxysilane, and the structural formula of the oligomer is as follows:
Figure BDA0003830417060000031
in the formula (1), R represents a saturated aliphatic alkyl group;
d2 is an epoxy-based coupling agent or/and an oligomer thereof; d3 is a methacryloxy coupling agent or/and an oligomer thereof;
wherein D is a composition, a tackifier for imparting adhesion to different substrates to the adhesive addition type silicone composition;
E. the auxiliary tackifier is a titanate coupling agent, and can further enhance the adhesive force of the cured organic silicon composition;
F. inhibitors (addition reaction inhibitors for adjusting the pot life, curing speed of the silicone composition);
G. fillers (fillers added to give specific properties to the silicone composition).
The adhesive addition type organic silicon composition has the advantages of reasonable formula, good adhesive property, environment-friendly and safe preparation process and mild preparation process conditions.
As a preferable technical scheme:
the above adhesive addition type silicone composition, wherein the vinyl silicone oil is a polysiloxane containing a carbon-carbon double bond capable of participating in an addition reaction in a molecular structure, and is at least one selected from a terminal vinyl silicone oil, a side vinyl silicone oil and a terminal vinyl silicone oil;
the mass percentage content of vinyl bonded with silicon atoms in the vinyl silicone oil is 0.01-2%;
the vinyl silicone oil has a viscosity of 10 to 1000000mpa.s at 23 ℃, which is measured using a Brookfield rotational viscometer (the same below), and is too low or too high, resulting in inconvenience in handling and deterioration in performance;
the hydrogen-containing silicone oil is polysiloxane with a molecular structure containing SiH groups capable of participating in addition reaction, and is selected from at least one of terminal hydrogen-containing silicone oil, side hydrogen-containing silicone oil and terminal hydrogen-containing silicone oil;
the mass percentage content of hydrogen radical directly bonded with silicon atom in the hydrogen-containing silicone oil is 0.01-3%;
the viscosity of the hydrogen-containing silicone oil at 23 ℃ is 0.5-10000mPa.s;
the platinum catalyst is selected from at least one of chloroplatinic acid, alcohol modifications of chloroplatinic acid, platinum-vinylsiloxane complexes, platinum-alkynyl complexes, and platinum-carbonyl complexes.
The above adhesive addition type silicone composition wherein the vinyl silicone oil has a viscosity of 50 to 200000mpa.s at 23 ℃;
the mass percentage content of vinyl bonded with silicon atoms in the vinyl silicone oil is 0.1-1%;
the viscosity of the hydrogen-containing silicone oil at 23 ℃ is 1-1000mPa.s;
the mass percentage content of hydrogen radical directly bonded with silicon atom in the hydrogen-containing silicone oil is 0.1-1.5%;
the platinum catalyst is a Karster catalyst.
An adhesive addition silicone composition as described above, wherein R is methyl, ethyl, propyl, or isopropyl; for convenience of use, D1 is preferably an oligomer which is liquid at room temperature, and these oligomers may be commercially available, for example: VMM-010 (Gelest corporation), dynasylan6490 (Wingand corporation), SG-Si 6490 (dajing eosin), JH-VP10 (Han of Hubei), etc.;
d2 is at least one selected from gamma-glycidoxypropyltrimethoxysilane, gamma-glycidoxypropyltriethoxysilane, gamma-glycidoxypropyl (methyl) dimethoxysilane, gamma-glycidoxypropyl (methyl) diethoxysilane, beta- (3, 4-epoxycyclohexyl) ethyltrimethoxysilane, beta- (3, 4-epoxycyclohexyl) ethyltriethoxysilane, beta- (3, 4-epoxycyclohexyl) ethyl (methyl) dimethoxysilane, beta- (3, 4-epoxycyclohexyl) ethyl (methyl) diethoxysilane or oligomers thereof; the market products can be KBM-403 (Xinshichi chemical), KBE-403 (Xinshichi chemical), JH-O186 (the Han of Hubei), JH-O187 (the Han of Hubei) and the like; examples of commercially available oligomers thereof include KR-516 (shin-Etsu chemical), KR-517 (shin-Etsu chemical), CG-560M (Jiangxi Chenguang);
d3 is at least one selected from gamma-methacryloxypropyltrimethoxysilane, gamma-methacryloxypropyltriethoxysilane, gamma-methacryloxypropyl (meth) dimethoxysilane, gamma-methacryloxypropyl (meth) diethoxysilane, gamma-acryloxypropyltrimethoxysilane, gamma-acryloxypropyl (meth) dimethoxysilane, gamma-acryloxypropyltriethoxysilane, gamma-acryloxypropyl (meth) diethoxysilane or oligomers thereof; the market products can be KBM-503 (the modern chemistry), KBE-503 (the modern chemistry), KBM-5103 (the modern chemistry), JH-O174 (the Han of the North of a lake), JH-O1741 (the Han of the North of a lake), JH-O176 (the Han of the North of a lake), and the like; as commercially available products, there are mentioned KR-513 (Tanzhichemistry), JH-OP1705 (Heizhan, hubei), and the like;
the auxiliary tackifier is at least one of alkyl titanate or/and titanium chelate, such as tetraethyl titanate, tetrapropyl titanate, tetrabutyl titanate, tetraisopropyl titanate, dibutyl bis (acetoacetato) titanate, diisobutyl bis (acetoacetato) titanate, diisopropyl bis (acetoacetato) titanate, bis (acetylacetonato) ethoxyisopropoxy titanate, bis (acetylacetonato) isobutoxyisopropoxy titanate, bis (acetylacetonato) diisopropyl titanate and the like;
the inhibitor is selected from at least one of alkynol, maleate and polyvinyl polysiloxane, such as 1-ethynylcyclohexanol, 3-methyl-1-butyn-3-ol, monoethyl maleate, allyl maleate, diallyl maleate, tetramethyltetravinylcyclotetrasiloxane, etc., preferably tetramethyltetravinylcyclotetrasiloxane;
the filler is at least one selected from calcium carbonate, magnesium carbonate, zinc carbonate, barium sulfate, quartz sand, diatomite, aluminum silicate, calcium silicate, talc (the filler is low in cost), aluminum hydroxide, magnesium hydroxide, zinc borate, ammonium polyphosphate (the composition is good in flame retardance), aluminum oxide, zinc oxide, boron nitride, aluminum nitride, silicon carbide (the composition is good in heat conductivity) and silicon dioxide (specifically, fumed silica subjected to surface treatment by hexamethyldisilazane, precipitated silica, fumed silica without surface treatment, precipitated silica and the like, and the composition is high in mechanical strength).
The adhesive addition type silicone composition as described above, wherein the platinum in the platinum catalyst accounts for 0.1 to 100ppm of the total mass of the adhesive addition type silicone composition;
the addition amount of the tackifier accounts for 0.01-10% of the mass of the vinyl silicone oil;
the addition amount of the auxiliary tackifier accounts for 0.01-20% of the mass of the tackifier;
the addition amount of the inhibitor accounts for 0-10% of the mass of the vinyl silicone oil;
the addition amount of the filler accounts for 0-90% of the total mass of the adhesive addition type organosilicon composition;
in the addition type organosilicon composition, the ratio of the mole number of SiH groups contained in the hydrogen-containing silicone oil to the sum of the mole number of the silicon alkenyl groups contained in the vinyl silicone oil and the mole number of the silicon alkenyl groups contained in the tackifier is 0.1-3.
The adhesive addition type organic silicon composition is characterized in that platinum in the platinum catalyst accounts for 0.5-50 ppm of the total mass of the adhesive addition type organic silicon composition;
the addition amount of the tackifier accounts for 0.5-5% of the mass of the vinyl silicone oil; the addition amount is too small, the caking property is influenced, the addition amount is too large, and the physical and mechanical properties after curing are poor; when D is an arbitrary combination selected from D1 and D2 to D3, the ratio of each is not particularly limited, but is preferably 5% or more, particularly preferably 10% or more, by mass of D;
the addition amount of the auxiliary tackifier accounts for 0.1-10% of the mass of the tackifier;
the addition amount of the inhibitor accounts for 0.1-5% of the mass of the vinyl silicone oil;
the adding amount of the filler accounts for 10-70% of the total mass of the adhesive addition type organic silicon composition;
the ratio of the mole number of SiH groups contained in the hydrogen-containing silicone oil to the sum of the mole number of the silicon alkenyl groups contained in the vinyl silicone oil and the mole number of the silicon alkenyl groups contained in the tackifier is 0.5-2.
Other components of the adhesive addition type silicone composition of the present invention are, in addition to the above components a to G, the following other components which may be added as necessary as long as the object of the present invention is not impaired: metal oxides and metal hydroxides added for the purpose of improving heat resistance; dimethicone added for adjusting fluidity; various pigments added for coloring, and the like. Toluene, xylene, petroleum ether, and the like may also be added to the composition for specific uses by dissolving the composition in an organic solvent.
An adhesive addition silicone composition as described above is a two-component composition, the first component includes a, C and does not contain B, and the second component includes a, B and does not contain C.
An adhesive addition silicone composition as described above, the weight ratio of the first component to the second component being between 1.
An adhesive addition silicone composition as described above, the weight ratio of the first component to the second component being between 1.
The invention also provides a method for preparing the adhesive addition type organic silicon composition, which comprises the steps of respectively uniformly mixing a first component and a second component in a planetary stirrer or/and a high-speed dispersion machine, removing bubbles in vacuum, and respectively packaging to obtain the finished product of the adhesive addition type organic silicon composition, wherein the first component comprises A and C and does not contain B, and the second component comprises A and B and does not contain C.
Before use, the first component and the second component are mixed evenly by hand or a known mixing device, applied to an object to be bonded or encapsulated, and cured according to a set process, so that the bonding or encapsulation of the object is completed. The material of the object may be metal such as aluminum, copper, stainless steel, etc., or polymer such as ABS, PBT, etc.
The above technical solutions are only one possible technical solution of the present invention, the protection scope of the present invention is not limited thereto, and those skilled in the art can reasonably adjust the specific designs according to actual needs.
The invention has the following advantages or beneficial effects:
the invention uses vinyl trialkoxy silane oligomer and silane coupling agent containing polar groups such as epoxy group or (methyl) acryloxy and the like or/and oligomer thereof and titanate coupling agent in a matching way, can obtain good bonding effect on the surfaces of metal and plastic, and can greatly reduce the problems of environmental protection, safety and the like brought by the process of automatically synthesizing the tackifier on a small scale because the coupling agent or the oligomer thereof is mostly industrial products and is relatively easy to obtain.
Detailed Description
The present invention will be further described with reference to specific examples, but the present invention is not limited thereto.
All parts in the following examples are by weight.
A: vinyl-terminated silicone oil having a viscosity of 1000mPa.s at 23 ℃;
b: side hydrogen-containing silicone oil with hydrogen content of 0.4%;
c: a Kaster catalyst with a Pt content of 3000 ppm;
d: a tackifier;
d1: an oligomer of vinyltrimethoxysilane, having a vinyl content of 23%;
d2: an epoxy-containing coupling agent or oligomer thereof;
d2-1: gamma-glycidoxypropyltrimethoxysilane;
d2-2: oligomers of gamma-glycidoxypropyltrimethoxysilane;
d3: a methacryloxy group-containing coupling agent or an oligomer thereof;
d3-1: gamma-methacryloxypropyltrimethoxysilane;
d3-2: oligomers of gamma-methacryloxypropyltrimethoxysilane;
as tackifier D, the following ingredients were used in the comparative examples:
d4: vinyl trimethoxysilane;
e: auxiliary tackifier: bis (acetylacetonate) ethoxyisopropoxy titanate;
f: inhibitor (b): tetramethyltetravinylcyclotetrasiloxane;
g: aluminum hydroxide with a median particle size of 5 μm;
example 1
A method for preparing an adhesive addition type silicone composition is as follows:
adding 40 parts of A and 60 parts of G into a planetary stirrer, stirring at room temperature for 60min, adding 3 parts of C, stirring for 10min, adding 0.3 part of E, and stirring in vacuum for 10min to obtain a first component;
adding 30 parts of A, 10 parts of B and 1 part of F into a planetary stirrer, stirring at room temperature for 10min, adding 60 parts of G, stirring at room temperature for 60min, adding 2 parts of D1, 0.5 part of D2-1 and 0.5 part of D3-1, and stirring under vacuum for 10min to obtain a second component.
Examples 2 to 4 and comparative examples 1 to 2
The preparation method is basically the same as that of example 1, except for the formulation, which is specifically shown in table 1.
TABLE 1
Figure BDA0003830417060000111
The adhesion tests were carried out on the products obtained in the above examples and comparative examples, as follows:
cutting the material used in the test into a test piece of 100mm 25mm 2mm, uniformly mixing a first component and a second component according to the mass ratio of =1:
and (3) optimization: failure interfaces were all cohesive failure
Good: the failure interface is mainly cohesive failure and is peeled off at a small part
Difference: the failure interface was either mostly or completely debonded.
The results of evaluating the adhesion of the products obtained in the above examples and comparative examples are shown in Table 2
TABLE 2
Figure BDA0003830417060000121
As can be seen from table 2, the adhesion to aluminum, stainless steel, ABS, PBT can be significantly improved by using a combination adhesion promoter of an oligomer of vinyltrimethoxysilane, an epoxy-containing coupling agent or an oligomer thereof, and a methacryloxy-containing coupling agent or an oligomer thereof. Comparing example 1 with comparative example 1, it can be seen that the adhesive effect is poor without the auxiliary tackifier E; comparing example 1 with comparative example 2, it can be seen that the adhesive effect is deteriorated when vinyltrimethoxysilane coupling agent is used instead of the oligomer.
Although the invention does not provide corresponding examples of all the components disclosed in the invention, the substitution of the materials with similar properties to the components in the formula can be realized, namely, the equivalent substitution of the raw materials of the product of the invention, the addition of auxiliary components, the selection of specific modes and the like are all within the protection scope and the disclosure scope of the invention. It should be understood by those skilled in the art that the above embodiments may be combined with the prior art to realize the modifications, and the detailed description is omitted here. Such variations do not affect the essence of the present invention and are not described herein.
The above description is that of the preferred embodiment of the present invention. It is to be understood that the invention is not limited to the particular embodiments described above, in which case a detailed description is not to be understood as being practiced in a manner that is common in the art; those skilled in the art can make many possible variations and modifications to the disclosed embodiments, or modify equivalent embodiments to equivalent variations, without departing from the spirit of the invention, using the methods and techniques disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the protection of the technical solution of the present invention, unless the contents of the technical solution of the present invention are departed.

Claims (10)

1. An adhesive addition silicone composition characterized by: comprises the following components:
A. vinyl silicone oil;
B. hydrogen-containing silicone oil;
C. a platinum catalyst;
D. a tackifier selected from at least two of the following D1 to D3 and including D1;
d1 is an oligomer of vinyl trialkoxysilane, and the structural formula of the oligomer is as follows:
Figure FDA0003830417050000011
in the formula (1), R represents a saturated aliphatic alkyl group;
d2 is an epoxy-based coupling agent or/and an oligomer thereof; d3 is a methacryloxy coupling agent or/and an oligomer thereof;
E. the auxiliary tackifier is a titanate coupling agent;
F. an inhibitor;
G. and (4) filling.
2. The adhesive addition type silicone composition according to claim 1, wherein the vinyl silicone oil is at least one selected from the group consisting of terminal vinyl silicone oil, side vinyl silicone oil, and terminal vinyl silicone oil;
the mass percentage content of vinyl bonded with silicon atoms in the vinyl silicone oil is 0.01-2%;
the viscosity of the vinyl silicone oil at 23 ℃ is 10-1000000mPa.s;
the hydrogen-containing silicone oil is selected from at least one of terminal hydrogen-containing silicone oil, side hydrogen-containing silicone oil and terminal hydrogen-containing silicone oil;
the mass percentage content of hydrogen radical directly bonded with silicon atom in the hydrogen-containing silicone oil is 0.01-3%;
the viscosity of the hydrogen-containing silicone oil at 23 ℃ is 0.5-10000mPa.s;
the platinum catalyst is selected from at least one of chloroplatinic acid, alcohol modifications of chloroplatinic acid, platinum-vinylsiloxane complexes, platinum-alkynyl complexes, and platinum-carbonyl complexes.
3. The adhesive addition type silicone composition according to claim 2, wherein the vinyl silicone oil has a viscosity of 50 to 200000mpa.s at 23 ℃;
the mass percentage content of vinyl bonded with silicon atoms in the vinyl silicone oil is 0.1-1%;
the viscosity of the hydrogen-containing silicone oil at 23 ℃ is 1-1000mPa.s;
the mass percentage content of hydrogen radical directly bonded with silicon atom in the hydrogen-containing silicone oil is 0.1-1.5%;
the platinum catalyst is a Karster catalyst.
4. The adhesive addition silicone composition according to claim 1, wherein R is a methyl group, an ethyl group, a propyl group, or an isopropyl group;
d2 is at least one selected from gamma-glycidoxypropyltrimethoxysilane, gamma-glycidoxypropyltriethoxysilane, gamma-glycidoxypropyl (methyl) dimethoxysilane, gamma-glycidoxypropyl (methyl) diethoxysilane, beta- (3, 4-epoxycyclohexyl) ethyltrimethoxysilane, beta- (3, 4-epoxycyclohexyl) ethyltriethoxysilane, beta- (3, 4-epoxycyclohexyl) ethyl (methyl) dimethoxysilane, beta- (3, 4-epoxycyclohexyl) ethyl (methyl) diethoxysilane or oligomers thereof;
d3 is at least one selected from gamma-methacryloxypropyltrimethoxysilane, gamma-methacryloxypropyltriethoxysilane, gamma-methacryloxypropyl (meth) dimethoxysilane, gamma-methacryloxypropyl (meth) diethoxysilane, gamma-acryloxypropyltrimethoxysilane, gamma-acryloxypropyl (meth) dimethoxysilane, gamma-acryloxypropyltriethoxysilane, gamma-acryloxypropyl (meth) diethoxysilane, or oligomers thereof;
the auxiliary tackifier is alkyl titanate or/and titanium chelate;
the inhibitor is selected from at least one of alkynol, maleate and polyvinyl polysiloxane;
the filler is at least one selected from the group consisting of calcium carbonate, magnesium carbonate, zinc carbonate, barium sulfate, quartz sand, diatomaceous earth, aluminum silicate, calcium silicate, talc, aluminum hydroxide, magnesium hydroxide, zinc borate, ammonium polyphosphate, alumina, zinc oxide, boron nitride, aluminum nitride, silicon carbide and silica.
5. The adhesive addition silicone composition according to claim 1, wherein the platinum catalyst comprises 0.1 to 100ppm of platinum based on the total mass of the adhesive addition silicone composition;
the addition amount of the tackifier accounts for 0.01-10% of the mass of the vinyl silicone oil;
the addition amount of the auxiliary tackifier accounts for 0.01-20% of the mass of the tackifier;
the addition amount of the inhibitor accounts for 0-10% of the mass of the vinyl silicone oil;
the addition amount of the filler accounts for 0-90% of the total mass of the adhesive addition type organosilicon composition;
in the addition type organosilicon composition, the ratio of the mole number of SiH groups contained in the hydrogen-containing silicone oil to the sum of the mole number of the silicon alkenyl groups contained in the vinyl silicone oil and the mole number of the silicon alkenyl groups contained in the tackifier is 0.1-3.
6. The adhesive addition silicone composition according to claim 5, wherein the platinum catalyst comprises platinum in an amount of 0.5 to 50ppm based on the total mass of the adhesive addition silicone composition;
the addition amount of the tackifier accounts for 0.5-5% of the mass of the vinyl silicone oil;
the addition amount of the auxiliary tackifier accounts for 0.1-10% of the mass of the tackifier;
the addition amount of the inhibitor accounts for 0.1-5% of the mass of the vinyl silicone oil;
the addition amount of the filler accounts for 10-70% of the total mass of the adhesive addition type organosilicon composition;
in the addition type organosilicon composition, the ratio of the mole number of SiH groups contained in the hydrogen-containing silicone oil to the sum of the mole number of the silicon alkenyl groups contained in the vinyl silicone oil and the mole number of the silicon alkenyl groups contained in the tackifier is 0.5-2.
7. The adhesive addition silicone composition according to claim 1, wherein the composition is a two-component composition, the first component comprises A, C and is free of B, and the second component comprises A, B and is free of C.
8. The adhesive addition silicone composition according to claim 7, wherein the weight ratio of the first component to the second component is between 1.
9. The adhesive addition silicone composition according to claim 8, wherein the weight ratio of the first component to the second component is between 1.
10. The process for preparing an adhesive addition type silicone composition according to any one of claims 1 to 9, wherein a first component and a second component are uniformly mixed in a planetary mixer or/and a high-speed disperser, and then are subjected to vacuum bubble removal and then are packaged respectively to obtain the finished adhesive addition type silicone composition, wherein the first component comprises A and C and does not contain B, and the second component comprises A and B and does not contain C.
CN202211075029.7A 2022-09-02 2022-09-02 Adhesive addition type organic silicon composition and preparation method thereof Pending CN115305050A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211075029.7A CN115305050A (en) 2022-09-02 2022-09-02 Adhesive addition type organic silicon composition and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211075029.7A CN115305050A (en) 2022-09-02 2022-09-02 Adhesive addition type organic silicon composition and preparation method thereof

Publications (1)

Publication Number Publication Date
CN115305050A true CN115305050A (en) 2022-11-08

Family

ID=83867219

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211075029.7A Pending CN115305050A (en) 2022-09-02 2022-09-02 Adhesive addition type organic silicon composition and preparation method thereof

Country Status (1)

Country Link
CN (1) CN115305050A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118256187A (en) * 2024-05-31 2024-06-28 江苏通灵电器股份有限公司 Chip pouring sealant and preparation method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002173630A (en) * 2000-05-17 2002-06-21 Kanegafuchi Chem Ind Co Ltd Primer composition and method for bonding the same composition
CN103788915A (en) * 2014-02-18 2014-05-14 北京天山新材料技术股份有限公司 Addition type silicone rubber adhesive with excellent adhesion property and preparation method thereof
CN106147698A (en) * 2016-07-01 2016-11-23 广州市高士实业有限公司 Photovoltaic component terminal box heat conductive flame-retarding organic silicon potting adhesive and preparation method
CN106244093A (en) * 2016-08-04 2016-12-21 深圳市安品有机硅材料有限公司 Room temperature vulcanization addition type organic silicon pouring sealant composition
US20190322809A1 (en) * 2016-12-29 2019-10-24 Byd Company Limited Liquid optical silicone composition, optical silicone, double-glass photovoltaic assembly, and preparation method therefor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002173630A (en) * 2000-05-17 2002-06-21 Kanegafuchi Chem Ind Co Ltd Primer composition and method for bonding the same composition
CN103788915A (en) * 2014-02-18 2014-05-14 北京天山新材料技术股份有限公司 Addition type silicone rubber adhesive with excellent adhesion property and preparation method thereof
CN106147698A (en) * 2016-07-01 2016-11-23 广州市高士实业有限公司 Photovoltaic component terminal box heat conductive flame-retarding organic silicon potting adhesive and preparation method
CN106244093A (en) * 2016-08-04 2016-12-21 深圳市安品有机硅材料有限公司 Room temperature vulcanization addition type organic silicon pouring sealant composition
US20190322809A1 (en) * 2016-12-29 2019-10-24 Byd Company Limited Liquid optical silicone composition, optical silicone, double-glass photovoltaic assembly, and preparation method therefor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
周煜华等: "硅烷低聚物的合成及应用研究进展", 《江西化工》, no. 6, pages 34 - 35 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118256187A (en) * 2024-05-31 2024-06-28 江苏通灵电器股份有限公司 Chip pouring sealant and preparation method thereof

Similar Documents

Publication Publication Date Title
CA2856452C (en) Composition of olefinically functionalised siloxane oligomers based on alkoxy silanes
US9296766B2 (en) Mixtures, particularly low in volatile organic compounds (VOC), of olefinically functionalised siloxane oligomers based O alkoxy silanes
EP1689816B1 (en) Curable silicone composition and cured product thereof
US5486565A (en) Organosilicon compounds and low temperature curing organosiloxane compositions containing same
EP0406664A1 (en) Adhesive silicone compositions
EP1789495B1 (en) Room-temperature curable organopolysiloxane composition and electrical or electronic devices
CN107513367B (en) Dealcoholized storage-resistant RTV electronic coating adhesive and preparation method thereof
CN111394052B (en) Dealcoholized condensed type double-component room temperature vulcanized silicone rubber and preparation method thereof
CA2855999C (en) Low-chloride compositions of olefinically functionalized siloxane oligomers based on alkoxysilanes
WO2015155949A1 (en) Adhesion promoter and curable organopolysiloxane composition containing same
CN101787256A (en) Addition type silicone adhesive composition and preparation method thereof
US5424384A (en) Curable organosiloxane compositions containing low temperature reactive adhesion additives
CN115305050A (en) Adhesive addition type organic silicon composition and preparation method thereof
CN113698608A (en) Phosphorus-containing silane copolymer for LED bonding and preparation method thereof
AU678026B2 (en) Adhesion promoting additives and low temperature curing organosiloxane compositions containing same
CN113652193B (en) High-strength flowing silica gel and preparation method and application thereof
CN109852338B (en) Fluorosilicone rubber composition, method for producing the same, and sealant and coating prepared from the same
CN105778100B (en) A kind of organic silicon rigidity-increasing stick and preparation method thereof and a kind of addition-type silicon rubber composition
CN112724405A (en) Curing agent mixture
US5399651A (en) Adhesion promoting additives and low temperature curing organosiloxane compositions containing same
US6034179A (en) Polyolefin compositions containing organosilicon compounds as adhesion additives
KR20240089740A (en) Room temperature curable organopolysiloxane compositions, adhesives, sealants and coatings
CN111518505B (en) Moisture-hardening resin composition, preparation method thereof and application thereof as sealant
JP2012193257A (en) Two-liquid mixing type room-temperature curable organopolysiloxane composition
JP7548861B2 (en) Highly moisture-resistant silicone resin adhesive composition

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20221108

RJ01 Rejection of invention patent application after publication