CN108517198A - A kind of single-component room-temperature vulcanized organosilicon adhesive and preparation method thereof - Google Patents
A kind of single-component room-temperature vulcanized organosilicon adhesive and preparation method thereof Download PDFInfo
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- CN108517198A CN108517198A CN201810233914.0A CN201810233914A CN108517198A CN 108517198 A CN108517198 A CN 108517198A CN 201810233914 A CN201810233914 A CN 201810233914A CN 108517198 A CN108517198 A CN 108517198A
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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
- 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
- C09J11/08—Macromolecular additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- 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
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
The present invention relates to polymeric material fields more particularly to a kind of single-component room-temperature vulcanized organosilicon adhesive and preparation method thereof, include the following steps：(1) hydroxy-end capped polysiloxanes is added in planetary stirrer, is warming up to 100 DEG C, is evacuated to 0.1MPa, stirring water removal 1h, is cooled to 10 25 DEG C at stir speed (S.S.) 50r/min, dispersion rate 200r/min；(2) reinforced filling, pigment, alcohol scavenging agent are sequentially added, 30min is stirred under conditions of vacuum degree 0.1MPa, stir speed (S.S.) 40r/min, dispersion rate 200r/min；(3) crosslinking agent, tackifier and catalyst are sequentially added, discharging packaging after 15min is stirred under conditions of vacuum degree 0.1MPa, stir speed (S.S.) 40r/min, dispersion rate 200r/min；The preparation method of the single-component room-temperature vulcanized organosilicon adhesive of the present invention can prepare a kind of quick surface drying, there is the single-component room-temperature vulcanized organosilicon adhesive of bonds well power to the base materials such as silica gel piece, PC, PVC.
Description
Technical field
The present invention relates to polymeric material field more particularly to a kind of single-component room-temperature vulcanized organosilicon adhesive and its systems
Preparation Method.
Background technology
In industrial circle, adhesive includes epoxy adhesive, adhesive for polyurethane, acrylic acid adhesive, organosilicon gluing
Multiple types such as agent.In fields such as electronic apparatus, automotive electronics, LED illuminations, electronic component will produce heat in the process of running
Amount, therefore have strict demand to the coefficient of expansion etc. of contact material.Since the product in above-mentioned field is in a variety of different environment,
Therefore there is special requirement to the adhering and sealing of product, moisture-proof, insulation, heat conduction etc., and organosilicon adhesive is due to it
Special structure has the advantage that other a few class adhesives do not have, such as high-low temperature resistant, low stress, electrical isolation, weatherability,
It is widely applied in electronic apparatus, automotive electronics, LED illumination lamp field.But the bonding force of organosilicon adhesive generally compared with
Difference, it is especially poor to the bonding force of the base materials such as silica gel piece, PC, PVC, good waterproof sealing effect can not be played.
Single-component room-temperature vulcanized its reaction mechanism of organosilicon adhesive be by absorb air in moisture cured, Gu
First cured from surface when change, then from outward appearance to inner essence cured, therefore the single-component room-temperature vulcanized organosilicon adhesive of moisture absorption type
Internal curing rate is far below its surface after sizing, and entire cure cycle is longer, and hardening time depends on bondline thickness, especially
, for the product for needing to be protected using embedding, since bondline thickness is thicker, hardening time is long, can seriously affect producing line for it
Production efficiency.
In view of the above shortcomings, the designer, is actively subject to research and innovation, to found a kind of safe and harmless, surface drying
Speed is fast, production efficiency is high, there is the single-component room-temperature vulcanized organosilicon gluing of bonds well power to the base materials such as silica gel piece, PC, PVC
Agent and preparation method thereof makes it with more the utility value in industry.
Invention content
In order to solve the above technical problems, the object of the present invention is to provide a kind of surface drying speed is fast, to silica gel piece, PC, PVC etc.
Base material has single-component room-temperature vulcanized organosilicon adhesive of bonds well power and preparation method thereof.
The present invention provides a kind of single-component room-temperature vulcanized organosilicon adhesive, the single-component room-temperature vulcanized organosilicon gluing
Agent includes the following component calculated by weight：
(A) 50-100 parts of hydroxy-end capped polysiloxanes；
(B) 10-50 parts of reinforced fillings；
(C) 2-20 parts of crosslinking agents；
(D) 0.1-5 parts of tackifier；
(E) 1-5 parts of alcohol scavenging agents；
(F) 0.01-1 parts of catalyst；
(G) 0.01-3 parts of pigment；
The structure of the wherein described hydroxy-end capped polysiloxanes is as follows：
Group R1It each independently represents as-CH3、-CH2CH3、-CH2CH2CH3、-CH(CH3)2、-C6H5；Group R2Respectively
Independently it is expressed as-CH3、-CH2CH3、-CH2CH2CH3、-CH(CH3)2、-C6H5；N is the integer in 5-100, and m is in 5-100
Integer, viscosity of the hydroxy-end capped polysiloxanes at 25 DEG C be 500-50000cps.
Preferably, the organosilicon adhesive includes the following component calculated by weight：
(A) 60-90 parts of hydroxy-end capped polysiloxanes；
(B) 10-50 parts of reinforced fillings；
(C) 2-15 parts of crosslinking agents；
(D) 0.1-5 parts of tackifier；
(E) 1-3 parts of alcohol scavenging agents；
(R) 0.01-0.6 parts of catalyst；
(G) 0.01-2 parts of pigment；
Group R1It each independently represents as-CH3、-CH2CH3、-CH2CH2CH3、-CH(CH3)2、-C6H5；Group R2Respectively
Independently it is expressed as-CH3、-CH2CH3、-CH2CH2CH3、-CH(CH3)2、-C6H5；N is the integer in 5-100, and m is in 5-100
Integer, viscosity of the hydroxy-end capped polysiloxanes at 25 DEG C be 500-50000cps.
Preferably, the reinforced filling is calcium carbonate, silica flour, carbon nanotube, montmorillonite or four acicular type zinc oxide crystal whisker
In it is one or more.
Preferably, the crosslinking agent is the polyfunctional group silane compound containing hydrolyzable groups, and hydrolyzable groups are amine
One kind in oxygroup, alkoxy, ketoxime base or acyloxy.
Preferably, the tackifier are vinyl three (2- methoxy ethoxies) silane, vinyl triethoxyl silicon, 3- ureas
Propyl trimethoxy silicane, 3- ureas propyl-triethoxysilicane, 3- piperazinopropyl methyl dimethoxy oxygroups silicon, N- phenyl -3- ammonia
Propyl trimethoxy silicane, N- (trimethoxy-silylpropyl) ethylenediamine, bis- [3- (trimethoxy silicon substrate) propyl] second two
Amine, two (3- trimethoxy-silylpropyls), aminopropyl triethoxysilane, γ-glycidoxypropyltrimethoxy silane,
β-aminoethyl-gamma-aminopropyl-triethoxy-silane, poly- ethylene dioxide diamines or one kind or more in polyethylene oxide diamine
Kind.
Preferably, the alcohol scavenging agent is 4- (trimethyl silyl) methyl butyrate, 2- (trimethyl silyl) second
One kind in sour methyl esters or 2- (trimethyl silyl) ethyl acetate.
Preferably, the catalyst is dibutyl tin laurate, dimethoxide base tin, di-t-butyl diethyl acyl-oxygen
It is one or more in Ji Xi, tin acetate, organotin chelate, isopropyl titanate, butyl titanate or Organo-Titanate Chelates.
Preferably, the pigment is one kind in carbon black, acetylene black, graphite or iron oxide black.
Preferably, the preparation method of the single-component room-temperature vulcanized organosilicon adhesive, includes the following steps：
(1) hydroxy-end capped polysiloxanes is added in planetary stirrer, is warming up to 100 DEG C, is evacuated to 0.1MPa, controlled
Stir speed (S.S.) processed is 50r/min, dispersion rate is 200r/min and stirs water removal 1h, is cooled to 10-25 DEG C；
(2) reinforced filling, pigment, alcohol scavenging agent are sequentially added, control vacuum degree is 0.1MPa, stir speed (S.S.) 40r/
Min, dispersion rate are 200r/min and stir 30min；
(3) crosslinking agent, tackifier and catalyst are sequentially added, in vacuum degree 0.1MPa, stir speed (S.S.) 40r/min, dispersion
Discharging is packed after stirring 15min under conditions of rate 200r/min.
According to the above aspect of the present invention, the present invention has at least the following advantages：It is formulated obtained one pack system by provided by the invention
Room temperature vulcanization organosilicon adhesive surface drying speed is fast, also has bonds well power to the base materials such as silica gel piece, PC, PVC.
In the present invention, the addition of reinforced filling is the poor tensile strength after directly vulcanizing due to raw rubber, does not have practicality
Value can not only improve the physical mechanical property of silica gel by the way that reinforced filling is added, and can improve its processing performance, and assign
The multiple performances such as the good abrasion performance of product, tear-resistant, heat-resisting, cold-resistant, oil resistant are given, the service life of product can be extended.
In the present invention, term " crosslinking agent " is the polyfunctional group silane compound containing hydrolyzable groups, and when reaction hands over
Connection agent first hydrolyzes to form hydroxyl, and the hydroxyl of formation is reacted with raw rubber again, and bridged bond is formed between raw rubber strand, to form three
Tie up the compound of network structure.Because linear polymer intensity is low, easily break, and without elasticity, the effect of crosslinking agent
Chemical bond exactly is generated between the molecule of line style, linear molecule is made to be connected with each other, reticular structure is formed, to improve silicon
The intensity and elasticity of adhesive.
In the present invention, tackifier be mainly used in silicon adhesive improve product initial bonding strength and holding power, increase with
The adhesive force of matrix.
In the present invention, alcohol scavenging agent be in order to remove or control system in moisture, the content of free alcohol, to
Improve the storage stability of sizing material.
Above description is only the general introduction of technical solution of the present invention, in order to better understand the technical means of the present invention,
And can be implemented in accordance with the contents of the specification, below with presently preferred embodiments of the present invention and to coordinate comparative example to carry out detailed
Explanation.
Specific implementation mode
With reference to embodiment and comparative example, the specific implementation mode of the present invention is described in further detail.With
Lower embodiment is not limited to the scope of the present invention for illustrating the present invention.
Embodiment one
By the α that viscosity is 4000cps and 20000cps, alpha, omega-dihydroxy polydimethyl siloxane (mass ratio 1:1) add for 90 parts
Enter in planetary stirrer, be warming up to 100 DEG C, be evacuated to 0.1MPa, stir speed (S.S.) be 50r/min, dispersion rate 200r/
Stirring water removal 1h, is cooled to 10-25 DEG C, sequentially adds 30 parts of calcium carbonate, 0.05 part of carbon black, 2 parts of 4- (front threes under conditions of min
Base silicyl) methyl butyrate, in the item that vacuum degree is 0.1MPa, stir speed (S.S.) 40r/min, dispersion rate are 200r/min
30min is stirred under part, sequentially adds 4 parts of ethyl trimethoxy silanes, 0.2 part of dibutyl tin laurate, 1 part of diethyl aminomethyl
Triethoxysilane stirs under conditions of vacuum degree is 0.1MPa, stir speed (S.S.) 40r/min, dispersion rate are 200r/min
Discharging is packed after mixing 15min, obtains single-component room-temperature vulcanized organosilicon adhesive.
Embodiment two
By the α that viscosity is 8000cps, alpha, omega-dihydroxy polydimethyl siloxane and the terminal hydroxy group that viscosity is 16000cps are poly-
Methyl phenyl siloxane (mass ratio 1:1) amount to 90 parts to be added in planetary stirrer, be warming up to 100 DEG C, be evacuated to 0.1MPa,
Stirring water removal 1h, is cooled to 10-25 DEG C under conditions of stir speed (S.S.) is 50r/min, dispersion rate is 200r/min, adds successively
Enter 25 parts of calcium carbonate, 0.05 part of carbon black, 2 parts of 2- (trimethyl silyl) methyl acetates, is 0.1MPa, stirs speed in vacuum degree
Rate is 40r/min, dispersion rate stirs 30min under conditions of being 200r/min, sequentially adds 4 parts of vinyl trimethoxy silicon
Alkane, 0.2 part of di-t-butyl diacetoxy tin, 1 part of γ-glycidoxypropyltrimethoxy silane, vacuum degree be 0.1MPa,
Discharging is packed after stirring 15min under conditions of stir speed (S.S.) is 40r/min, dispersion rate is 200r/min, obtains single group locellus
Warm sulfureted organic silicon adhesive.
Embodiment three
By the α that viscosity is 2000cps, alpha, omega-dihydroxy polydimethyl siloxane and the terminal hydroxy group that viscosity is 25000cps are poly-
Methyl phenyl siloxane (mass ratio 1:1) it is added in planetary stirrer for 90 parts, is warming up to 100 DEG C, is evacuated to 0.1MPa, stirring
Mix rate be 50r/min, stirring water removal 1h under conditions of dispersion rate is 200r/min, be cooled to 10-25 DEG C, sequentially add 25
Part silica flour, 0.05 part of carbon black, 2 parts of 2- (trimethyl silyl) methyl acetates are in vacuum degree 0.1MPa, stir speed (S.S.)
40r/min, dispersion rate be 200r/min under conditions of stir 30min, sequentially add 4 parts of ethyl trimethoxy silanes, 0.2 part
Dibutyl tin laurate, 1 part of 3- urea propyl trimethoxy silicane, vacuum degree be 0.1MPa, stir speed (S.S.) 40r/min,
Discharge under conditions of dispersion rate is 200r/min after stirring 15min packaging, obtains single-component room-temperature vulcanized organosilicon adhesive.
Example IV
By the α that viscosity is 4000cps and 20000cps, alpha, omega-dihydroxy polydimethyl siloxane (mass ratio 1:1) add for 90 parts
Enter in planetary stirrer, be warming up to 100 DEG C, be evacuated to 0.1MPa, stir speed (S.S.) be 50r/min, dispersion rate 200r/
Stirring water removal 1h, is cooled to 10-25 DEG C, sequentially adds 30 parts of calcium carbonate, 0.05 part of carbon black, 2 parts of 4- (front threes under conditions of min
Base silicyl) methyl butyrate, in the item that vacuum degree is 0.1MPa, stir speed (S.S.) 40r/min, dispersion rate are 200r/min
30min is stirred under part, sequentially adds 4 parts of methyltrimethoxysilane, 0.2 part of di-t-butyl diacetoxy tin, 0.8 part of 3- urea
Propyl trimethoxy silicane, 1 part of polyethylene oxide diamine are 0.1MPa, stir speed (S.S.) 40r/min, disperse speed in vacuum degree
Discharge under conditions of rate is 200r/min after stirring 15min packaging, obtains single-component room-temperature vulcanized organosilicon adhesive.
Comparative example one
By the α that viscosity is 4000cps, alpha, omega-dihydroxy polydimethyl siloxane and the terminal hydroxy group that viscosity is 20000cps are poly-
Methyl phenyl siloxane (mass ratio 1:1) amount to 90 parts to be added in planetary stirrer, be warming up to 100 DEG C, be evacuated to 0.1MPa,
Stirring water removal 1h, is cooled to 10-25 DEG C under conditions of stir speed (S.S.) is 50r/min, dispersion rate is 200r/min, adds successively
Enter 30 parts of calcium carbonate, 0.05 part of carbon black, 2 parts of 4- (trimethyl silyl) methyl butyrates, is 0.1MPa, stirs speed in vacuum degree
Rate is 40r/min, dispersion rate stirs 30min under conditions of being 200r/min, sequentially add 4 parts of ethyl trimethoxy silanes,
0.2 part of dibutyl tin laurate, 1 part of diethylamino methyltriethoxysilane, vacuum degree is 0.1MPa, stir speed (S.S.) is
Discharge under conditions of 40r/min, dispersion rate are 200r/min after stirring 15min packaging, obtains single-component room-temperature vulcanized organic
Silicon adhesive.
Comparative example two
By the α that viscosity is 8000cps, alpha, omega-dihydroxy polydimethyl siloxane and the terminal hydroxy group that viscosity is 16000cps are poly-
Methyl phenyl siloxane (mass ratio 1:1) amount to 90 parts to be added in planetary stirrer, be warming up to 100 DEG C, be evacuated to 0.1MPa,
Stirring water removal 1h, is cooled to 10-25 DEG C under conditions of stir speed (S.S.) is 50r/min, dispersion rate is 200r/min, adds successively
Enter 10 parts of calcium carbonate, 0.05 part of carbon black, 2 parts of 2- (trimethyl silyl) methyl acetates, is 0.1MPa, stirs speed in vacuum degree
Rate is 40r/min, dispersion rate stirs 30min under conditions of being 200r/min, sequentially adds 4 parts of vinyl trimethoxy silicon
Alkane, 0.2 part of di-t-butyl diacetoxy tin, 1 part of γ-glycidoxypropyltrimethoxy silane, vacuum degree be 0.1MPa,
Discharging is packed after stirring 15min under conditions of stir speed (S.S.) is 40r/min, dispersion rate is 200r/min, obtains single group locellus
Warm sulfureted organic silicon adhesive.
Comparative example three
By the α that viscosity is 2000cps, alpha, omega-dihydroxy polydimethyl siloxane and the terminal hydroxy group that viscosity is 25000cps are poly-
Methyl phenyl siloxane (mass ratio 1:1) amount to 90 parts to be added in planetary stirrer, be warming up to 100 DEG C, be evacuated to 0.1MPa,
Stirring water removal 1h, is cooled to 10-25 DEG C under conditions of stir speed (S.S.) is 50r/min, dispersion rate is 200r/min, adds successively
Enter 25 parts of silica flours, 0.05 part of carbon black, 2 parts of 2- (trimethyl silyl) methyl acetates, is 0.1MPa, stirs speed in vacuum degree
Rate is 40r/min, dispersion rate stirs 30min under conditions of being 200r/min, sequentially adds 4 parts of ethyl trimethoxy silanes, 1
Part 3- urea propyl trimethoxy silicanes, vacuum degree be 0.1MPa, stir speed (S.S.) 40r/min, dispersion rate 200r/min
Under conditions of stirring 15min after discharge packaging, obtain single-component room-temperature vulcanized organosilicon adhesive.
Comparative example four
By the α that viscosity is 4000cps and 20000cps, alpha, omega-dihydroxy polydimethyl siloxane (mass ratio 1:1) add for 90 parts
Enter in planetary stirrer, be warming up to 100 DEG C, be evacuated to 0.1MPa, stir speed (S.S.) be 50r/min, dispersion rate 200r/
Stirring water removal 1h, is cooled to 10-25 DEG C, sequentially adds 30 parts of calcium carbonate, 0.05 part of carbon black, 2 parts of 4- (front threes under conditions of min
Base silicyl) methyl butyrate, in the item that vacuum degree is 0.1MPa, stir speed (S.S.) 40r/min, dispersion rate are 200r/min
30min is stirred under part, 4 parts of methyltrimethoxysilane, 0.2 part of di-t-butyl diacetoxy tin are sequentially added, in vacuum degree
Discharging is packed after stirring 15min under conditions of being 200r/min for 0.1MPa, stir speed (S.S.) 40r/min, dispersion rate, is obtained
Single-component room-temperature vulcanized organosilicon adhesive.
Embodiment and comparative example are tested using GB standard, wherein shear strength and hardness be
Cure under the conditions of 25 DEG C/55%RH and tested afterwards for 24 hours, the comparative analysis of the above detection data has been listed in the table below in 1.
The performance measurement data of single-component room-temperature vulcanized organosilicon adhesive in 1 comparative example of table and embodiment
To sum up, in order to make single-component room-temperature vulcanized organosilicon adhesive provided by the invention have surface drying time short, to silicon
The base materials such as film, PC, PVC have bonds well power, in the formula of single-component room-temperature vulcanized organosilicon adhesive provided by the invention
In, it is added to the reinforced filling that can improve its physical mechanical property, and its processing performance can be improved, and it is good to assign product
The multiple performances such as abrasion performance, tear-resistant, heat-resisting, cold-resistant, oil resistant, extend the service life of product, be also used primarily in height
The crosslinking agent of crosslink density is improved in molecular material, and is acted on the initial bonding strength in adhesive for improving product and held viscous
Power, increase and matrix adhesive force tackifier, it is effective to improve and in order to obtain shorter surface drying time and hardening time
Production efficiency and the catalyst in reaction system is added.
The above is only a preferred embodiment of the present invention, it is not intended to restrict the invention, it is noted that for this skill
For the those of ordinary skill in art field, without departing from the technical principles of the invention, can also make it is several improvement and
Modification, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of single-component room-temperature vulcanized organosilicon adhesive, it is characterised in that：The single-component room-temperature vulcanized organosilicon gluing
Agent includes the following component calculated by weight：
(A) 50-100 parts of hydroxy-end capped polysiloxanes；
(B) 10-50 parts of reinforced fillings；
(C) 2-20 parts of crosslinking agents；
(D) 0.1-5 parts of tackifier；
(E) 1-5 parts of alcohol scavenging agents；
(F) 0.01-1 parts of catalyst；
(G) 0.01-3 parts of pigment；
The structure of the hydroxy-end capped polysiloxanes is as follows：
Group R1It each independently represents as-CH3、-CH2CH3、-CH2CH2CH3、-CH(CH3)2、-C6H5；Group R2It is respectively independent
Ground is expressed as-CH3、-CH2CH3、-CH2CH2CH3、-CH(CH3)2、-C6H5；N is the integer in 5-100, and m is whole in 5-100
Number, viscosity of the hydroxy-end capped polysiloxanes at 25 DEG C are 500-50000cps.
2. single-component room-temperature vulcanized organosilicon adhesive according to claim 1, which is characterized in that the single-component room-temperature sulphur
It includes the following component calculated by weight to change organosilicon adhesive：
(A) 60-90 parts of hydroxy-end capped polysiloxanes；
(B) 10-50 parts of reinforced fillings；
(C) 2-15 parts of crosslinking agents；
(D) 0.1-5 parts of tackifier；
(E) 1-3 parts of alcohol scavenging agents；
(R) 0.01-0.6 parts of catalyst；
(G) 0.01-2 parts of pigment；
Group R1It each independently represents as-CH3、-CH2CH3、-CH2CH2CH3、-CH(CH3)2、-C6H5；Group R2It is respectively independent
Ground is expressed as-CH3、-CH2CH3、-CH2CH2CH3、-CH(CH3)2、-C6H5；N is the integer in 5-100, and m is whole in 5-100
Number, viscosity of the hydroxy-end capped polysiloxanes at 25 DEG C are 500-50000cps.
3. single-component room-temperature vulcanized organosilicon adhesive according to claim 1 or claim 2, it is characterised in that：The reinforced filling
It is one or more in calcium carbonate, silica flour, carbon nanotube, montmorillonite, four acicular type zinc oxide crystal whisker.
4. single-component room-temperature vulcanized organosilicon adhesive according to claim 1 or claim 2, it is characterised in that：The crosslinking agent is
Polyfunctional group silane compound containing hydrolyzable groups.
5. single-component room-temperature vulcanized organosilicon adhesive according to claim 4, it is characterised in that：The hydrolyzable groups are
Azyloxy either alkoxy or ketoxime base or acyloxy.
6. single-component room-temperature vulcanized organosilicon adhesive according to claim 1 or claim 2, it is characterised in that：The tackifier are
Vinyl three (2- methoxy ethoxies) silane, vinyl triethoxyl silicon, 3- ureas propyl trimethoxy silicane, 3- ureas propyl three
Ethoxysilane, 3- piperazinopropyl methyl dimethoxy oxygroups silicon, N- phenyl -3- aminopropyl trimethoxysilanes, N- (trimethoxies
Silylpropyl) ethylenediamine, bis- [3- (trimethoxy silicon substrate) propyl] ethylenediamines, two (3- trimethoxysilyls third
Base), aminopropyl triethoxysilane, γ-glycidoxypropyltrimethoxy silane, β-aminoethyl-gamma-aminopropyl-triethoxy
It is one or more in silane, poly- ethylene dioxide diamines, polyethylene oxide diamine.
7. single-component room-temperature vulcanized organosilicon adhesive according to claim 1 or claim 2, it is characterised in that：The alcohol scavenging agent
For 4- (trimethyl silyl) methyl butyrate either 2- (trimethyl silyl) methyl acetates or 2- (trimethyl silyls
Base) ethyl acetate.
8. single-component room-temperature vulcanized organosilicon adhesive according to claim 1 or claim 2, it is characterised in that：The catalyst is
Dibutyl tin laurate, dimethoxide base tin, di-t-butyl diacetoxy tin, tin acetate, organotin chelate, titanium
It is one or more in isopropyl propionate, butyl titanate or Organo-Titanate Chelates.
9. single-component room-temperature vulcanized organosilicon adhesive according to claim 1 or claim 2, it is characterised in that：The pigment is charcoal
One kind in black, acetylene black, graphite or iron oxide black.
10. the preparation method of single-component room-temperature vulcanized organosilicon adhesive according to claim 1 or claim 2, it is characterised in that packet
Include following steps：
(1) hydroxy-end capped polysiloxanes is added in planetary stirrer, is warming up to 100 DEG C, is evacuated to 0.1MPa, control is stirred
Mix rate be 50r/min, dispersion rate be 200r/min stirring water removal 1h, be cooled to 10-25 DEG C；
(2) reinforced filling, pigment, alcohol scavenging agent are sequentially added, control vacuum degree is 0.1MPa, stir speed (S.S.) 40r/min, divides
It is that 200r/min stirs 30min to dissipate rate；
(3) crosslinking agent, tackifier and catalyst are sequentially added, in vacuum degree 0.1MPa, stir speed (S.S.) 40r/min, dispersion rate
Discharging is packed after stirring 15min under conditions of 200r/min.
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| CN109825243A (en) * | 2019-01-31 | 2019-05-31 | 无锡海特信成高分子科技有限公司 | Electric car lithium ion power storage battery packet and system organosilicon adhesive and preparation method thereof |
| CN109852332A (en) * | 2018-12-05 | 2019-06-07 | 湖北航天化学技术研究所 | A kind of surface treating agent and its preparation method and application |
| CN110734738A (en) * | 2019-10-10 | 2020-01-31 | 烟台德邦科技有限公司 | organosilicon three-proofing adhesive and preparation process thereof |
| CN110951446A (en) * | 2019-12-19 | 2020-04-03 | 新纳奇材料科技江苏有限公司 | Preparation method of silicone sealant modified based on carbon nanotube-titanium oxide hybrid filler |
| CN116162438A (en) * | 2022-12-27 | 2023-05-26 | 湖北环宇化工有限公司 | Dealcoholized RTV-1 silicone rubber with improved storage life and preparation method thereof |
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| CN116162438B (en) * | 2022-12-27 | 2024-06-07 | 湖北环宇化工有限公司 | Dealcoholized RTV-1 silicone rubber with improved storage life and preparation method thereof |
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Application publication date: 20180911 |