CN104449547A - single-component dealcoholized and room temperature vulcanized organosilicone pouring sealant for LEDs and preparation method - Google Patents
single-component dealcoholized and room temperature vulcanized organosilicone pouring sealant for LEDs and preparation method Download PDFInfo
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Abstract
The invention discloses a single-component dealcoholized and room temperature vulcanized organosilicone pouring sealant for LEDs and a preparation method. The pouring sealant is prepared from the following raw materials in parts by weight: 100 parts of alpha, omega-dihydroxy polydimethyl siloxane with a viscosity of 500-15000 mPa.s, 10-50 parts of dry processed nano calcium carbonate, 1-10 parts of calcium chloride, 5-10 parts of white carbon black, 8-20 parts of dimethicone with a viscosity of 100-5000 mPa.s, 3-10 parts of a cross-linking agent, 0.3-5 parts of a coupling agent, 0.5-8 parts of titanium complex, 0.01-0.5 part of organotin and 0.5-10 parts of a deep vulcanization accelerator. The pouring sealant provided by the invention has an excellent flow property with low thread drawing, the capabilities of anti-pulverization at a high temperature and fast and deep curing, and a good mechanical property; the produced gas has good cohesiveness on the base material without corrosive action; the method is simple and feasible in technology, easy to operate and low in production cost, and has preferable economic and social benefits.
Description
Technical field
The present invention relates to electronic encapsulation material technical field, be specifically related to a kind of LED single-component de-alcoholized room temperature vulcanized organic silicon potting adhesive and preparation method.
Background technology
Embedding is exactly the operating procedure forming electronic component and carry out on request reasonable Arrangement, assembling, connection and environment isolation and protection.The effect of embedding is exactly the globality of strengthening electronic element, improves the opposing to external destruction, improves internal wiring insulativity, improves the waterproof of electronic component, humidity resistance.
LED (photodiode) is a based electroluminescent solid state device, because of advantages such as its high brightness, low in calories, long lifetime, nontoxic, recyclable recyclings, and the green illumination light source that 21 century of being known as is the most promising.Current, LED illumination and big screen LED backlight are two emerging markets of great potential in LED Application Areas.Illumination and large-size screen monitors LED are made up of LED module, are often chronically exposed in severe rugged environment, require there is good adaptability to environment, to the embedding of LED display module, effectively can avoid the infringement of moisture, rainwater, light, heat, dust etc. during use.
At present, conventional LED joint sealant comprises epoxy resin and silicon rubber.High thermal resistance and the wet fastness of epoxy resin are poor, cause element shortening in work-ing life.If aqueous vapor enters device inside, easily cause short circuit.Also there is the problem of not easily reprocessing in epoxy resin sealant.And silicon rubber has high-low temperature resistant, weather-resistant, electric insulation, resistance to ozone, hydrophobic, difficult combustion, many excellent properties such as nontoxic, it is the desirable packaged material of LED.
Silicon rubber can be divided into three major types type by composition, sulfuration mechanism and operation, i.e. single-component room-temperature-vulsilicone silicone rubber, two component condensed room temperature vulcanized silicone rubber and dual composition addition type room temperature vulcanized silicone rubber.The advantage of two component condensed room temperature vulcanized silicone rubber solidifies not heat release, and solidification can be carried out on surface and inside simultaneously, can rapid deep zone sulfuration.Temperature is depended in the sulfuration of bi-component addition type silicon rubber, and temperature can be utilized to regulate vulcanization rate; The shortcoming of two component uses the first two component fully must mix by metering, inconvenient operation.Single-component de-alcoholized room temperature vulcanized silicone rubber, as a kind of general electric embedding product, have excellent electrical property, ageing-resistant, but when there is construction, wire drawing is long, the shortcomings such as room temperature deep cure is low, the easy efflorescence of high temperature.
Chinese patent CN102115604A provides a kind of condensed-type organosilicon transparent electronic potting adhesive, all catalyzer is contained in its component A, and the hydroxyl of polysiloxane occurs from condensation under catalyst action, therefore component A storage process exists viscosity increases, and even affects the problem of curing speed.Chinese patent CN101787211A provides a kind of high-transparency and high-strength room temperature vulcanization organosilicon electron pouring sealant, and single employing γ-aminopropyl triethoxysilane exists the shortcoming of cohesiveness deficiency as tackifier.Several prior art is all bi-component glue above, there is the shortcoming of constructing operation inconvenience.Chinese patent CN101565599 single-component ketonic oxime potting adhesive and preparation method thereof, this patent does not relate to adhesive property and the pulverization situation in the case of a high temperature of silicone adhesive.Therefore, develop a kind of flowing property with excellence, low wire drawing, high temperature resistance efflorescence, rapid deep zone solidifies, and mechanical property is good, and easy to operate LED joint sealant is extremely urgent.
Summary of the invention:
The object of the invention is for the deficiencies in the prior art, a kind of LED single-component de-alcoholized room temperature vulcanized organic silicon potting adhesive and preparation method thereof is provided, be characterized in that there is excellent flowing property, low wire drawing, high temperature resistance efflorescence, rapid deep zone solidifies, mechanical property is good, easy to operate.
The single-component de-alcoholized room temperature vulcanized organic joint sealant of a kind of LED, comprise the raw material of following weight part: viscosity is the α of 500 ~ 15000mPas, alpha, omega-dihydroxy polydimethyl siloxane 100 parts, dry process nano-calcium carbonate 10 ~ 50 parts, 1 ~ 10 part, calcium chloride, white carbon black 5 ~ 10 parts, viscosity is the dimethyl silicone oil 8 ~ 20 parts of 100 ~ 5000mPas, linking agent 3 ~ 10 parts, coupling agent 0.3 ~ 5 part, titanium complex 0.5 ~ 8 part, organotin 0.01 ~ 0.5 part, deep layer vulcanization promotor 0.5 ~ 10 part.
Above-described according to the single-component de-alcoholized room temperature vulcanized organic joint sealant of above-mentioned LED, preferably include the raw material of following weight part: viscosity is the α of 1000 ~ 8000mPas, alpha, omega-dihydroxy polydimethyl siloxane 100 parts, dry process nano-calcium carbonate 15 ~ 25 parts, 3 ~ 8 parts, calcium chloride, white carbon black 5 ~ 8 parts, viscosity is the dimethyl silicone oil 8 ~ 15 parts of 200 ~ 2000mPas, linking agent 3 ~ 6 parts, coupling agent 0.5 ~ 3 part, titanium complex 2 ~ 5 parts, organotin 0.05 ~ 0.2 part, deep layer vulcanization promotor 4 ~ 7 parts.
The nano-calcium carbonate of above-described dry process carries out the nano-calcium carbonate after surface treatment by through lipid acid, fatty acid ester etc., further use cithrol dry surface process gained, the amount of surface treatment agent is 1 ~ 5% of nano-calcium carbonate total amount.
Above-described linking agent be methyltrimethoxy silane, ethyl trimethoxy silane, vinyltrimethoxy silane, Union carbide A-162, tetraethoxy, ethyl polysilicate, positive silicic acid propyl ester more than one.
Above-described coupling agent is γ-aminopropyl triethoxysilane, γ-aminopropyltrimethoxysilane, N-β-aminoethyl-γ-aminopropyltrimethoxysilane, γ-(2,3-epoxy group(ing) propane) propyl-triethoxysilicane, γ-(2,3-epoxy third oxygen) propyl trimethoxy silicane more than one.
Above-described titanium complex be isopropyl titanate, butyl (tetra) titanate, two (methyl aceto acetate) two (isopropoxy) titanic acid ester complex compound, two (methyl ethyl diketone) two (isopropoxy) titanic acid ester complex compound more than one.
Above-described organotin be dibutyl tin acetate, dibutyl tin laurate, stannous octoate one or both.
Above-described deep layer vulcanization promotor is the one in methane amide, N-METHYLFORMAMIDE, DMF.
Above-described according to the single-component de-alcoholized room temperature vulcanized organic joint sealant of above-mentioned LED, preferably include the raw material of following weight part: α, alpha, omega-dihydroxy polydimethyl siloxane 100 parts, the nano-calcium carbonate of dry process 15 parts, 5 parts, calcium chloride, white carbon black 5 parts, viscosity is 200mPas dimethyl silicone oil 8 parts, 4 parts, the mixture of methyltrimethoxy silane and ethyl trimethoxy silane, γ-aminopropyl triethoxysilane and γ-(2, 3-epoxy group(ing) propane) 2 parts, propyl-triethoxysilicane mixture, 3 parts, two (methyl ethyl diketone) two (isopropoxy) titanic acid ester complex compound, dibutyl tin laurate 0.08 part and methane amide 5 parts.
A LED manufacture method for single-component de-alcoholized room temperature vulcanized organic silicon potting adhesive, comprises following processing step:
1. use 1 ~ 5% cithrol (calcium carbonate total amount) to carry out secondary dry process according to a conventional method to nano-calcium carbonate, for subsequent use;
2. by the α of 100 parts, high speed dispersor put into by nano-calcium carbonate, 1 ~ 10 part of calcium chloride, 5 ~ 10 parts of white carbon blacks and 8 ~ 20 parts of dimethyl silicone oils of alpha, omega-dihydroxy polydimethyl siloxane, 10 ~ 50 parts of dry process, stir, be evacuated to-0.06 ~-0.1MPa simultaneously, be heated to 90 ~ 130 DEG C, high speed dispersion 60 ~ 200min; Described high speed dispersor has double-jacket, zone of heating and logical cooling water layer;
3. high speed dispersor is led to cooling water temperature to 20 ~ 50 DEG C, logical nitrogen removes vacuum, and add linking agent 3 ~ 10 parts, stir, continue to vacuumize, maintenance vacuum tightness is-0.08 ~-0.1MPa, high speed dispersion 20 ~ 60min;
4. logical nitrogen removes vacuum, add coupling agent 0.3 ~ 5 part, titanium complex 0.5 ~ 8 part, organotin 0.01 ~ 0.5 part and deep layer vulcanization promotor 0.5 ~ 10 part, stir and continue to vacuumize, keep vacuum tightness-0.08 ~-0.1MPa, namely high speed dispersion 20 ~ 60min obtains single-component de-alcoholized room temperature vulcanized organic silicon potting adhesive.
LED obtained for above-mentioned method is pressed GB/T531.1-2008 with single-component de-alcoholized room temperature vulcanized organic silicon potting adhesive and tests Shao Er hardness, by GB/T 10247-2008 tested viscosity, test press flow viscosity by sae j 1524-1995, test the performances such as surface drying time, tensile propcrties, thermal ageing by GB/T16776-2005.
Stringiness testing method: joint sealant is packaged in 330ml polyethylene sealed tube, envelope mouth being cut into diameter is 5mm, after extruding 5g seal gum in the horizontal direction, sealed tube is mentioned from vertical direction, the length of string of test glue.
Test result shows, the single-component de-alcoholized room temperature vulcanized organic silicon potting adhesive of manufacture of the present invention has good flowing property, low stringiness, and room temperature deep cure is fast, mechanical property and adhesive property good, be applicable to the embedding of LED electrical sub-element.
Advantage of the present invention and positively effect:
1, the product prepared of the present invention, is characterized in having excellent flowing property, low wire drawing, high temperature resistance efflorescence, and rapid deep zone solidifies, and mechanical property is good, easy to operate;
2, the gas of joint sealant generation of the present invention is good to base material cohesiveness, and to the corrosion-free effect of base material;
3, the inventive method technique simple possible, production cost is low, has good economic benefit and social benefit.
Embodiment:
To be described in detail the specific embodiment of the invention below.Be intended to help reader understanding, the restriction to the scope of the present invention can not be formed.
Embodiment 1
1. use 2.5% cithrol (calcium carbonate total amount) to carry out secondary dry process according to a conventional method to nano-calcium carbonate.
2. be the α of 2000mPas by 100 parts of viscosity, the nano-calcium carbonate of alpha, omega-dihydroxy polydimethyl siloxane, 15 parts of dry process, 5 parts of calcium chloride, 5 parts of white carbon blacks and 8 parts of viscosity are that high speed dispersor put into by 200mPas dimethyl silicone oil, stir, be evacuated to-0.09MPa simultaneously, being heated to 90 DEG C, is 1000rpm high speed dispersion 100min at high speed dispersor rotating speed.
3. high speed dispersor is led to cooling water temperature to 35 DEG C, logical nitrogen removes vacuum, and add 4 parts, the mixture of methyltrimethoxy silane and ethyl trimethoxy silane, stir, continue to vacuumize, maintenance vacuum tightness is-0.095MPa, high speed dispersion 30min.
4. logical nitrogen removes vacuum, add γ-aminopropyl triethoxysilane and γ-(2,3-epoxy group(ing) propane) 2 parts, propyl-triethoxysilicane mixture, 3 parts, two (methyl ethyl diketone) two (isopropoxy) titanic acid ester complex compound, dibutyl tin laurate 0.08 part and methane amide 5 parts, stir and continue to vacuumize, keep vacuum tightness-0.095MPa, namely high speed dispersion 30min obtains single-component de-alcoholized joint sealant.
Test performance refers to table-2.
Embodiment 2
1. use 2.5% fatty acid treatment agent (calcium carbonate total amount) to carry out secondary dry process according to a conventional method to nano-calcium carbonate.
2. be the α of 2000mPas by 100 parts of viscosity, the nano-calcium carbonate of alpha, omega-dihydroxy polydimethyl siloxane, 15 parts of dry process, 5 parts of calcium chloride, 5 parts of white carbon blacks and 8 parts of viscosity are that high speed dispersor put into by 200mPas dimethyl silicone oil, stir, be evacuated to-0.09MPa simultaneously, being heated to 90 DEG C, is 1000rpm high speed dispersion 100min at high speed dispersor rotating speed.
3. high speed dispersor is led to cooling water temperature to 35 DEG C, logical nitrogen removes vacuum, and add 4 parts, the mixture of methyltrimethoxy silane and ethyl trimethoxy silane, stir, continue to vacuumize, maintenance vacuum tightness is-0.095MPa, high speed dispersion 30min.
4. logical nitrogen removes vacuum, add γ-aminopropyl triethoxysilane and γ-(2,3-epoxy group(ing) propane) 2 parts, propyl-triethoxysilicane mixture, 3 parts, two (methyl ethyl diketone) two (isopropoxy) titanic acid ester complex compound, dibutyl tin laurate 0.08 part and methane amide 5 parts, stir and continue to vacuumize, keep vacuum tightness-0.095MPa, namely high speed dispersion 30min obtains single-component de-alcoholized joint sealant.
Test performance refers to table-2.
Embodiment 3
1. be the α of 2000mPas by 100 parts of viscosity, alpha, omega-dihydroxy polydimethyl siloxane, 15 parts of nano-calcium carbonates, 2.5% cithrol (calcium carbonate total amount), 5 parts of calcium chloride, 5 parts of white carbon blacks and 8 parts of viscosity are that high speed dispersor put into by 200mPas dimethyl silicone oil, stir, be evacuated to-0.09MPa simultaneously, being heated to 90 DEG C, is 1000rpm high speed dispersion 100min at high speed dispersor rotating speed.
2. high speed dispersor is led to cooling water temperature to 35 DEG C, logical nitrogen removes vacuum, and add 4 parts, the mixture of methyltrimethoxy silane and ethyl trimethoxy silane, stir, continue to vacuumize, maintenance vacuum tightness is-0.095MPa, high speed dispersion 30min.
3. logical nitrogen removes vacuum, add γ-aminopropyl triethoxysilane and γ-(2,3-epoxy group(ing) propane) 2 parts, propyl-triethoxysilicane mixture, 3 parts, two (methyl ethyl diketone) two (isopropoxy) titanic acid ester complex compound, dibutyl tin laurate 0.08 part and methane amide 5 parts, stir and continue to vacuumize, keep vacuum tightness-0.095MPa, namely high speed dispersion 30min obtains single-component de-alcoholized joint sealant.
Test performance refers to table-2.
Embodiment 4
1. be the α of 2000mPas by 100 parts of viscosity, alpha, omega-dihydroxy polydimethyl siloxane, 15 parts of nano-calcium carbonates, 5 parts of calcium chloride, 5 parts of white carbon blacks and 8 parts of viscosity are that high speed dispersor put into by 200mPas dimethyl silicone oil, stir, be evacuated to-0.09MPa simultaneously, being heated to 90 DEG C, is 1000rpm high speed dispersion 100min at high speed dispersor rotating speed.
2. high speed dispersor is led to cooling water temperature to 35 DEG C, logical nitrogen removes vacuum, and add 4 parts, the mixture of methyltrimethoxy silane and ethyl trimethoxy silane, stir, continue to vacuumize, maintenance vacuum tightness is-0.095MPa, high speed dispersion 30min.
3. logical nitrogen removes vacuum, add γ-aminopropyl triethoxysilane and γ-(2,3-epoxy group(ing) propane) 2 parts, propyl-triethoxysilicane mixture, 3 parts, two (methyl ethyl diketone) two (isopropoxy) titanic acid ester complex compound, dibutyl tin laurate 0.08 part and methane amide 5 parts, stir and continue to vacuumize, keep vacuum tightness-0.095MPa, namely high speed dispersion 30min obtains single-component de-alcoholized joint sealant.
Test performance refers to table-2.
Embodiment 5
1. use 2.5% cithrol (calcium carbonate total amount) to carry out secondary dry process according to a conventional method to nano-calcium carbonate.
2. be the α of 2000mPas by 100 parts of viscosity, the nano-calcium carbonate of alpha, omega-dihydroxy polydimethyl siloxane, 15 parts of dry process, 5 parts of calcium chloride, 5 parts of white carbon blacks and 8 parts of viscosity are that high speed dispersor put into by 200mPas dimethyl silicone oil, stir, be evacuated to-0.09MPa simultaneously, being heated to 90 DEG C, is 1000rpm high speed dispersion 100min at high speed dispersor rotating speed.
3. high speed dispersor is led to cooling water temperature to 35 DEG C, logical nitrogen removes vacuum, and add 4 parts, the mixture of methyltrimethoxy silane and ethyl trimethoxy silane, stir, continue to vacuumize, maintenance vacuum tightness is-0.095MPa, high speed dispersion 30min.
4. logical nitrogen removes vacuum, add γ-aminopropyl triethoxysilane and γ-(2,3-epoxy group(ing) propane) 2 parts, propyl-triethoxysilicane mixture, 3 parts, two (methyl ethyl diketone) two (isopropoxy) titanic acid ester complex compound, dibutyl tin laurate 0.08 part, stir and continue to vacuumize, keep vacuum tightness-0.095MPa, namely high speed dispersion 30min obtains single-component de-alcoholized joint sealant.
Test performance refers to table-2.
Comparative example 1
1. be the α of 2000mPas by 100 parts of viscosity, alpha, omega-dihydroxy polydimethyl siloxane, 15 parts of nano-calcium carbonates, 5 parts of calcium chloride, 5 parts of white carbon blacks and 8 parts of viscosity are that high speed dispersor put into by 200mPas dimethyl silicone oil, stir, be evacuated to-0.09MPa simultaneously, being heated to 90 DEG C, is 1000rpm high speed dispersion 100min at high speed dispersor rotating speed.
2. high speed dispersor is led to cooling water temperature to 35 DEG C, logical nitrogen removes vacuum, and add 4 parts, the mixture of methyltrimethoxy silane and ethyl trimethoxy silane, stir, continue to vacuumize, maintenance vacuum tightness is-0.095MPa, high speed dispersion 30min.
3. logical nitrogen removes vacuum, add γ-aminopropyl triethoxysilane and γ-(2,3-epoxy group(ing) propane) 2 parts, propyl-triethoxysilicane mixture, 3 parts, two (methyl ethyl diketone) two (isopropoxy) titanic acid ester complex compound, dibutyl tin laurate 0.08 part, stir and continue to vacuumize, keep vacuum tightness-0.095MPa, namely high speed dispersion 30min obtains single-component de-alcoholized joint sealant.
Test performance refers to table-2.
The key distinction that above-described embodiment and comparative example are filled a prescription is as shown-1.
Table-1: the key distinction that embodiment and comparative example are filled a prescription
Table-2: the test result of silicon joint sealant performance
Wherein, extrudabilityly to represent with press flow viscosity, use Switzerland Fitech AG PM43 type press flow viscosity measurement examination, testing method is sae j 1524-1995.Result is expressed as the nozzle using 2.5mm, under the pressure of 5bar, and the quality that 20s extrudes.
Facts have proved, have excellent flowing property by the fill a prescription single-component de-alcoholized room temperature vulcanized organic silicon potting adhesive of preparation of the present invention, adhesive property is good, high temperature resistance efflorescence, wire drawing is short, the feature of rapid deep zone solidification, and the small molecule alcohol of sizing material release is corrosion-free to bonded base material.This joint sealant is applied to LED embedding, and market outlook are very wide.
Claims (10)
1. the single-component de-alcoholized room temperature vulcanized organic joint sealant of LED, it is characterized in that: the raw material comprising following weight part: viscosity is the α of 500 ~ 15000mPas, alpha, omega-dihydroxy polydimethyl siloxane 100 parts, dry process nano-calcium carbonate 10 ~ 50 parts, 1 ~ 10 part, calcium chloride, white carbon black 5 ~ 10 parts, viscosity is the dimethyl silicone oil 8 ~ 20 parts of 100 ~ 5000mPas, linking agent 3 ~ 10 parts, coupling agent 0.3 ~ 5 part, titanium complex 0.5 ~ 8 part, organotin 0.01 ~ 0.5 part, deep layer vulcanization promotor 0.5 ~ 10 part is made.
2. according to claim 1 according to the single-component de-alcoholized room temperature vulcanized organic joint sealant of above-mentioned LED, it is characterized in that: the raw material comprising following weight part: viscosity is the α of 1000 ~ 8000mPas, alpha, omega-dihydroxy polydimethyl siloxane 100 parts, dry process nano-calcium carbonate 15 ~ 25 parts, 3 ~ 8 parts, calcium chloride, white carbon black 5 ~ 8 parts, viscosity is the dimethyl silicone oil 8 ~ 15 parts of 200 ~ 2000mPas, linking agent 3 ~ 6 parts, coupling agent 0.5 ~ 3 part, titanium complex 2 ~ 5 parts, organotin 0.05 ~ 0.2 part, deep layer vulcanization promotor 4 ~ 7 parts is made.
3. according to claim 1 according to the single-component de-alcoholized room temperature vulcanized organic joint sealant of above-mentioned LED, it is characterized in that: the nano-calcium carbonate of described dry process carries out the nano-calcium carbonate after surface treatment by through lipid acid, fatty acid ester etc., further use cithrol dry surface process gained, the amount of surface treatment agent is 1 ~ 5% of nano-calcium carbonate total amount.
4. according to claim 1 according to the single-component de-alcoholized room temperature vulcanized organic joint sealant of above-mentioned LED, it is characterized in that: described linking agent be methyltrimethoxy silane, ethyl trimethoxy silane, vinyltrimethoxy silane, Union carbide A-162, tetraethoxy, ethyl polysilicate, positive silicic acid propyl ester more than one.
5. according to claim 1 according to the single-component de-alcoholized room temperature vulcanized organic joint sealant of above-mentioned LED, it is characterized in that: described coupling agent is γ-aminopropyl triethoxysilane, γ-aminopropyltrimethoxysilane, N-β-aminoethyl-γ-aminopropyltrimethoxysilane, γ-(2,3-epoxy group(ing) propane) propyl-triethoxysilicane, γ-(2,3-epoxy third oxygen) propyl trimethoxy silicane more than one.
6. according to claim 1 according to the single-component de-alcoholized room temperature vulcanized organic joint sealant of above-mentioned LED, it is characterized in that: described titanium complex be isopropyl titanate, butyl (tetra) titanate, two (methyl aceto acetate) two (isopropoxy) titanic acid ester complex compound, two (methyl ethyl diketone) two (isopropoxy) titanic acid ester complex compound more than one.
7. according to claim 1 according to the single-component de-alcoholized room temperature vulcanized organic joint sealant of above-mentioned LED, it is characterized in that: described organotin be dibutyl tin acetate, dibutyl tin laurate, stannous octoate one or both.
8. according to claim 1 according to the single-component de-alcoholized room temperature vulcanized organic joint sealant of above-mentioned LED, it is characterized in that: described deep layer vulcanization promotor is the one in methane amide, N-METHYLFORMAMIDE, DMF.
9. according to claim 1 according to the single-component de-alcoholized room temperature vulcanized organic joint sealant of above-mentioned LED, it is characterized in that: described according to the single-component de-alcoholized room temperature vulcanized organic joint sealant of above-mentioned LED, preferably include the raw material of following weight part: α, alpha, omega-dihydroxy polydimethyl siloxane 100 parts, the nano-calcium carbonate of dry process 15 parts, 5 parts, calcium chloride, white carbon black 5 parts, viscosity is 200mPas dimethyl silicone oil 8 parts, 4 parts, the mixture of methyltrimethoxy silane and ethyl trimethoxy silane, γ-aminopropyl triethoxysilane and γ-(2, 3-epoxy group(ing) propane) 2 parts, propyl-triethoxysilicane mixture, 3 parts, two (methyl ethyl diketone) two (isopropoxy) titanic acid ester complex compound, dibutyl tin laurate 0.08 part and methane amide 5 parts are made.
10. a LED manufacture method for single-component de-alcoholized room temperature vulcanized organic silicon potting adhesive, is characterized in that: comprise following processing step:
(1) 1 ~ 5% cithrol (calcium carbonate total amount) is used to carry out secondary dry process according to a conventional method to nano-calcium carbonate, for subsequent use;
(2) by the α of 100 parts, high speed dispersor put into by nano-calcium carbonate, 1 ~ 10 part of calcium chloride, 5 ~ 10 parts of white carbon blacks and 8 ~ 20 parts of dimethyl silicone oils of alpha, omega-dihydroxy polydimethyl siloxane, 10 ~ 50 parts of dry process, stir, be evacuated to-0.06 ~-0.1MPa simultaneously, be heated to 90 ~ 130 DEG C, high speed dispersion 60 ~ 200min; Described high speed dispersor has double-jacket, zone of heating and logical cooling water layer;
(3) high speed dispersor is led to cooling water temperature to 20 ~ 50 DEG C, logical nitrogen removes vacuum, and add linking agent 3 ~ 10 parts, stir, continue to vacuumize, maintenance vacuum tightness is-0.08 ~-0.1MPa, high speed dispersion 20 ~ 60min;
(4) logical nitrogen removes vacuum, add coupling agent 0.3 ~ 5 part, titanium complex 0.5 ~ 8 part, organotin 0.01 ~ 0.5 part and deep layer vulcanization promotor 0.5 ~ 10 part, stir and continue to vacuumize, keep vacuum tightness-0.08 ~-0.1MPa, namely high speed dispersion 20 ~ 60min obtains single-component de-alcoholized room temperature vulcanized organic silicon potting adhesive.
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| CN105062411A (en) * | 2015-09-09 | 2015-11-18 | 蓝星（成都）新材料有限公司 | Single-component dealcoholized organosilicon sealant and preparation method thereof |
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| CN105062411A (en) * | 2015-09-09 | 2015-11-18 | 蓝星（成都）新材料有限公司 | Single-component dealcoholized organosilicon sealant and preparation method thereof |
| CN105062407A (en) * | 2015-09-09 | 2015-11-18 | 蓝星（成都）新材料有限公司 | Low-viscosity organosilicon sealant for LED (light-emitting diode) potting and preparation method thereof |
| CN105950100A (en) * | 2016-05-31 | 2016-09-21 | 江苏创景科技有限公司 | {0><}0{>Organosilicon pouring sealant with high curing speed and low wiredrawing capability and preparation method thereof<0} |
| CN108192102A (en) * | 2017-12-30 | 2018-06-22 | 汕头市骏码凯撒有限公司 | A kind of non-protonic solvent type dealcoholysis room temperature vulcanized silicone rubber and preparation method thereof |
| CN109054931A (en) * | 2018-07-06 | 2018-12-21 | 安徽腾奎智能科技有限公司 | A kind of photovoltaic junction box Cutting fluid for processing |
| CN109135582A (en) * | 2018-07-06 | 2019-01-04 | 安徽腾奎智能科技有限公司 | Casting glue for LED photovoltaic display device |
| US12084593B2 (en) | 2018-12-19 | 2024-09-10 | Ppg Industries Ohio, Inc. | Sprayable silicone polymer dispersion |
| CN111019594A (en) * | 2019-12-26 | 2020-04-17 | 广州市白云化工实业有限公司 | Alcohol-type silicone sealant and preparation method thereof |
| CN111704888A (en) * | 2020-05-15 | 2020-09-25 | 江门市金信恒科技有限公司 | Organic silicon binder resistant to long-term ultraviolet irradiation and preparation method thereof |
| CN111621155B (en) * | 2020-05-29 | 2022-04-22 | 广州汇纳新材料科技有限公司 | Two-component ketoxime-removing silicone rubber capable of being deeply cured and preparation method thereof |
| CN111621155A (en) * | 2020-05-29 | 2020-09-04 | 广州汇纳新材料科技有限公司 | Two-component ketoxime-removing silicone rubber capable of being deeply cured and preparation method thereof |
| CN112029288A (en) * | 2020-09-15 | 2020-12-04 | 沅陵县成瑞祥粉体材料科技有限公司 | Preparation method of vulcanized silicone rubber |
| CN114015055A (en) * | 2021-11-17 | 2022-02-08 | 江西晨光新材料股份有限公司 | Synthesis method and application of functional silane terminated polysiloxane |
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