CN104497962B - A kind of add-on type electron pouring sealant being applicable to psychro-environment and its preparation method and application - Google Patents
A kind of add-on type electron pouring sealant being applicable to psychro-environment and its preparation method and application Download PDFInfo
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Abstract
The invention discloses a kind of add-on type electron pouring sealant being applicable to psychro-environment, mixed by component A and B component, the raw material of component A is vinyl silicone oil 90～160, containing hydrogen silicone oil 5～30, aluminium hydroxide 50～150, aluminium oxide 50～150, Vinyl MQ silicon resin 1～10, inhibitor 0.1～1, white carbon black 1～5, and the raw material of B component is vinyl silicone oil 90～160, aluminium hydroxide 50～130, aluminium oxide 50～100, vinyl MQ silicon tree, the preparation method and application of platinum catalyst 0.1～2.The present invention is designed by formula, the problem solving the colloidal property decline that colloid is caused in process of expansion and contraction due to the destruction of filler and the difference of the colloid coefficient of expansion and granule sharp comer, makes colloid still can normally work below 60 DEG C of temperature.Preparation technology of the present invention is simple, easy to operate, the use of the scientific research, detection instrument and the equipment that are suitable under High aititude, polar region psychro-environment.
Description
Technical field
The present invention relates to macromolecule Embedding Material technical field, particularly relate to a kind of add-on type electricity being applicable to psychro-environment
Sub-casting glue and its preparation method and application.
Background technology
Under environment of extremely trembling with fear, temperature likely reach subzero 60 DEG C even lower.Along with polar region exploitation and exploratory development
Needing, increasing electronic equipment needs to be under environment of extremely trembling with fear use.Although silicone rubber is in weatherability and low temperature resistant
The most excellent Deng aspect of performance, but the temperature range used under its cryogenic conditions of currently available technology silicone rubber products is-50
～-20 DEG C, it is clear that use under extreme conditions cannot be met.Therefore, research and development is applicable to the silicone rubber of psychro-environment
Embedding product has the most urgent and necessity.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, it is provided that a kind of add-on type electronics being applicable to psychro-environment
Casting glue, makes colloid still can normally work below-60 DEG C of temperature, thus meets electronic equipment polar region environment and exploration is ground
The use demand studied carefully.Another object of the present invention is to provide the preparation method and application of above-mentioned add-on type electron pouring sealant.
The purpose of the present invention is achieved by the following technical programs:
A kind of add-on type electron pouring sealant being applicable to psychro-environment that the present invention provides, by component A and B component mixing
Become；The raw material composition of the most described component A and B component is respectively as follows:
Component A:
B component:
Further, the vinyl silicone oil of the present invention viscosity at a temperature of 25 DEG C is 200～5000mpa.s.Described
The hydrogen content of containing hydrogen silicone oil is 0.18～0.6%.Described aluminium hydroxide processes through fluorosilane-type materials viscosity reduction surface, its mean diameter
It is 20～100nm.Described aluminium oxide processes through surface silicon alkanes material viscosity reduction surface, and its mean diameter is 20～100nm.Described
Its solid content of Vinyl MQ silicon resin is 50%, M/Q is 0.8, contents of ethylene is 0.6～1%.Described inhibitor is poly-diformazan
Ylmethyl vinylsiloxane.Described catalyst is Pt series catalysts.
Another object of the present invention is achieved by the following technical programs:
The preparation method of the above-mentioned add-on type electron pouring sealant being applicable to psychro-environment that the present invention provides is as follows:
The preparation of described component A:
The raw material of described component A is respectively formed in vacuum dispersion machine in vacuum-0.06～-0.09MPa, mixing speed
10～30Hz, under rate of dispersion 15～45Hz, stirring mixing 20～50min, obtain component A；
The preparation of described B component:
The raw material of described B component is respectively formed in vacuum dispersion machine in vacuum-0.06～-0.09MPa, mixing speed
10～30Hz, under rate of dispersion 15～45Hz, stirring mixing 20～50min, obtain B component.
The application of the above-mentioned add-on type electron pouring sealant being applicable to psychro-environment that the present invention provides is as follows: by described A group
Part, B component, in mass ratio component A: B component=1: 1 is stirred mix homogeneously, solidify at a temperature of room temperature or 60～100 DEG C
?.
The method have the advantages that
(1) present invention is designed by formula, and selects nanoscale functional stuffing, utilizes its surface and interface effect, solves
Colloid is caused due to the destruction of filler and the difference of the colloid coefficient of expansion and granule sharp comer in process of expansion and contraction
The problem that colloidal property declines, makes colloid that original technical performance still can be kept below-60 DEG C of temperature normally to work.Warp
Test, it is fully cured the time (80 DEG C, min)≤30, mixing viscosity (mpa.s) is 2860～5800, hardness (shoreA) is
38～55, volume resistance (Ω .cm) is 1.29 × 1015～1.62 × 1015, breakdown voltage (kv/mm) be 16～17, heat conduction system
Number (w/m.k) is 0.24～0.29.
(2) preparation technology of the present invention is simple, easy to operate, is suitable for the scientific research under High aititude, polar region psychro-environment, detection
The use of instrument and equipment.
Below in conjunction with embodiment, the present invention is described in further detail.
Detailed description of the invention
A kind of add-on type electron pouring sealant being applicable to psychro-environment of the embodiment of the present invention, by component A and B component mixing
Becoming, the raw material of component A is: vinyl silicone oil, containing hydrogen silicone oil, aluminium hydroxide, aluminium oxide, Vinyl MQ silicon resin, inhibitor, charcoal
Black, the raw material of B component is: vinyl silicone oil, aluminium hydroxide, aluminium oxide, Vinyl MQ silicon resin, catalyst.
Wherein, the hydrogen content of containing hydrogen silicone oil is 0.18～0.6%；Aluminium hydroxide processes through fluorosilane-type materials viscosity reduction surface,
Its mean diameter is 20～100nm；Aluminium oxide through surface silicon alkanes material viscosity reduction surface process, its mean diameter be 20～
100nm；Its solid content of Vinyl MQ silicon resin is 50%, M/Q is 0.8, contents of ethylene is 0.6～1%；Inhibitor is poly-two
Methyl vinylsiloxane；Catalyst is Pt series catalysts.
Embodiment one:
1, a kind of add-on type electron pouring sealant being applicable to psychro-environment of the present embodiment, by component A and B component mixing
Become；The raw material composition of the most described component A and B component is respectively as follows:
Component A:
B component:
2, the preparation method of a kind of add-on type electron pouring sealant being applicable to psychro-environment of the present embodiment is as follows:
The preparation of component A:
The raw material of above-mentioned component A is respectively formed in vacuum dispersion machine vacuum-0.09MPa, mixing speed 25Hz, point
Dissipate under speed 35Hz, stirring mixing 40min, obtain component A；
The preparation of B component:
The raw material of above-mentioned B component is respectively formed in vacuum dispersion machine vacuum-0.09MPa, mixing speed 25Hz, point
Dissipate under speed 35Hz, stirring mixing 40min, obtain B component.
Embodiment two:
1, a kind of add-on type electron pouring sealant being applicable to psychro-environment of the present embodiment, by component A and B component mixing
Become；The raw material composition of the most described component A and B component is respectively as follows:
Component A:
B component:
2, the preparation method of a kind of add-on type electron pouring sealant being applicable to psychro-environment of the present embodiment is as follows:
The preparation of component A:
The raw material of above-mentioned component A is respectively formed in vacuum dispersion machine vacuum-0.06MPa, mixing speed 10Hz, point
Dissipate under speed 15Hz, stirring mixing 20min, obtain component A；
The preparation of B component:
The raw material of above-mentioned B component is respectively formed in vacuum dispersion machine vacuum-0.06MPa, mixing speed 15Hz, point
Dissipate under speed 15Hz, stirring mixing 20min, obtain B component.
Embodiment three:
1, a kind of add-on type electron pouring sealant being applicable to psychro-environment of the present embodiment, by component A and B component mixing
Become；The raw material composition of the most described component A and B component is respectively as follows:
Component A:
B component:
2, the preparation method of a kind of add-on type electron pouring sealant being applicable to psychro-environment of the present embodiment is as follows:
The preparation of component A:
The raw material of above-mentioned component A is respectively formed in vacuum dispersion machine vacuum-0.07MPa, mixing speed 35Hz, point
Dissipate under speed 30Hz, stirring mixing 30min, obtain component A；
The preparation of B component:
The raw material of above-mentioned B component is respectively formed in vacuum dispersion machine vacuum-0.07MPa, mixing speed 25Hz, point
Dissipate under speed 30Hz, stirring mixing 30min, obtain B component.
Embodiment four:
1, a kind of add-on type electron pouring sealant being applicable to psychro-environment of the present embodiment, by component A and B component mixing
Become；The raw material composition of the most described component A and B component is respectively as follows:
Component A:
B component:
2, the preparation method of a kind of add-on type electron pouring sealant being applicable to psychro-environment of the present embodiment is as follows:
The preparation of component A:
The raw material of above-mentioned component A is respectively formed in vacuum dispersion machine vacuum-0.08MPa, mixing speed 30Hz, point
Dissipate under speed 45Hz, stirring mixing 45min, obtain component A；
The preparation of B component:
The raw material of above-mentioned B component is respectively formed in vacuum dispersion machine vacuum-0.08MPa, mixing speed 25Hz, point
Dissipate under speed 35Hz, stirring mixing 50min, obtain B component.
Embodiment five:
1, a kind of add-on type electron pouring sealant being applicable to psychro-environment of the present embodiment, by component A and B component mixing
Become；The raw material composition of the most described component A and B component is respectively as follows:
Component A:
B component:
2, the preparation method of a kind of add-on type electron pouring sealant being applicable to psychro-environment of the present embodiment is as follows:
The preparation of component A:
The raw material of above-mentioned component A is respectively formed in vacuum dispersion machine vacuum-0.09MPa, mixing speed 15Hz, point
Dissipate under speed 25Hz, stirring mixing 25min, obtain component A；
The preparation of B component:
The raw material of above-mentioned B component is respectively formed in vacuum dispersion machine vacuum-0.07MPa, mixing speed 15Hz, point
Dissipate under speed 15Hz, stirring mixing 50min, obtain B component.
Embodiment six:
1, a kind of add-on type electron pouring sealant being applicable to psychro-environment of the present embodiment, by component A and B component mixing
Become；The raw material composition of the most described component A and B component is respectively as follows:
Component A:
B component:
2, the preparation method of a kind of add-on type electron pouring sealant being applicable to psychro-environment of the present embodiment is as follows:
The preparation of component A:
The raw material of above-mentioned component A is respectively formed in vacuum dispersion machine vacuum-0.09MPa, mixing speed 30Hz, point
Dissipate under speed 45Hz, stirring mixing 50min, obtain component A；
The preparation of B component:
The raw material of above-mentioned B component is respectively formed in vacuum dispersion machine vacuum-0.09MPa, mixing speed 25Hz, point
Dissipate under speed 35Hz, stirring mixing 40min, obtain B component.
The electron pouring sealant that various embodiments of the present invention prepare, by component A, B component, in mass ratio component A during use: B group
Part=1: 1 is stirred mix homogeneously, solidifies at a temperature of room temperature or 60～100 DEG C, and its performance test is as follows: according to
The shore hardness of GB/T531 test colloid；According to the GB/T13477.5 test operation time；Anti-flammability is tested according to GB/T2408
Energy；According to GB/T1692 test volume resistivity；Breakdown voltage is tested according to GB/T1695；Heat conduction system is measured according to GB/T3399
Number；Resistance to low temperature is tested according to GB/T1682.The performance indications that test obtains are as shown in table 1.
The performance indications of the electron pouring sealant that table 1 various embodiments of the present invention prepare
* mixing viscosity is after component A, B component carry out mix homogeneously by proportioning, the viscosity number recorded.
A kind of add-on type electron pouring sealant being applicable to psychro-environment of the present invention and its preparation method and application, its reaction is former
Material composition and preparation method technological parameter are not limited to the above-mentioned embodiment enumerated.
Claims (7)
1. the add-on type electron pouring sealant being applicable to psychro-environment, it is characterised in that: mixed by component A and B component；
The raw material composition of the most described component A and B component is respectively as follows:
Component A:
B component:
Described aluminium hydroxide processes through fluorosilane-type materials viscosity reduction surface, and its mean diameter is 20～100nm；Described aluminium oxide is through table
Fluorosilane-type materials viscosity reduction surface, face processes, and its mean diameter is 20～100nm；Described inhibitor is poly dimethyl methyl ethylene
Siloxanes.
The add-on type electron pouring sealant being applicable to psychro-environment the most according to claim 1, it is characterised in that: described ethylene
Base silicone oil viscosity at a temperature of 25 DEG C is 200～5000mpa.s.
The add-on type electron pouring sealant being applicable to psychro-environment the most according to claim 1, it is characterised in that: described hydrogeneous
The hydrogen content of silicone oil is 0.18～0.6%.
The add-on type electron pouring sealant being applicable to psychro-environment the most according to claim 1, it is characterised in that: described ethylene
Base its solid content of MQ silicones is 50%, M/Q is 0.8, contents of ethylene is 0.6～1%.
The add-on type electron pouring sealant being applicable to psychro-environment the most according to claim 1, it is characterised in that: described catalysis
Agent is Pt series catalysts.
6. being applicable to the preparation method of the add-on type electron pouring sealant of psychro-environment described in one of claim 1-5, its feature exists
In:
The preparation of described component A:
The raw material of described component A is respectively formed in vacuum dispersion machine vacuum-0.06～-0.09MPa, mixing speed 10～
Under 30Hz, rate of dispersion 15～45Hz, stirring mixing 20～50min, obtain component A；
The preparation of described B component:
The raw material of described B component is respectively formed in vacuum dispersion machine vacuum-0.06～-0.09MPa, mixing speed 10～
Under 30Hz, rate of dispersion 15～45Hz, stirring mixing 20～50min, obtain B component.
7. described in one of claim 1-5, it is applicable to the application of the add-on type electron pouring sealant of psychro-environment, it is characterised in that: will
Described component A, B component, in mass ratio component A: B component=1: 1 is stirred mix homogeneously, in room temperature or 60～100 DEG C of temperature
The lower solidification of degree.
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| CN102952403A (en) * | 2011-08-30 | 2013-03-06 | 上海尤耐有机硅材料有限公司 | Additive organosilicon heat-conducting electronic potting adhesive and manufacturing method thereof |
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| CN102952403A (en) * | 2011-08-30 | 2013-03-06 | 上海尤耐有机硅材料有限公司 | Additive organosilicon heat-conducting electronic potting adhesive and manufacturing method thereof |
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