CN114395369B - Double-component addition type silicone adhesive and preparation method and application thereof - Google Patents
Double-component addition type silicone adhesive and preparation method and application thereof Download PDFInfo
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- CN114395369B CN114395369B CN202210121163.XA CN202210121163A CN114395369B CN 114395369 B CN114395369 B CN 114395369B CN 202210121163 A CN202210121163 A CN 202210121163A CN 114395369 B CN114395369 B CN 114395369B
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- 239000013464 silicone adhesive Substances 0.000 title claims abstract description 49
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 29
- 229920000570 polyether Polymers 0.000 claims abstract description 29
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910000077 silane Inorganic materials 0.000 claims abstract description 25
- 239000004753 textile Substances 0.000 claims abstract description 23
- 239000000853 adhesive Substances 0.000 claims abstract description 13
- 230000001070 adhesive effect Effects 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 5
- 239000004526 silane-modified polyether Substances 0.000 claims abstract description 5
- FFUAGWLWBBFQJT-UHFFFAOYSA-N hexamethyldisilazane Chemical compound C[Si](C)(C)N[Si](C)(C)C FFUAGWLWBBFQJT-UHFFFAOYSA-N 0.000 claims description 58
- 229920002545 silicone oil Polymers 0.000 claims description 56
- 229920002554 vinyl polymer Polymers 0.000 claims description 39
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 38
- 238000004898 kneading Methods 0.000 claims description 36
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 36
- 229910052739 hydrogen Inorganic materials 0.000 claims description 35
- 239000001257 hydrogen Substances 0.000 claims description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 30
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 29
- 239000011256 inorganic filler Substances 0.000 claims description 26
- 229910003475 inorganic filler Inorganic materials 0.000 claims description 26
- 239000003112 inhibitor Substances 0.000 claims description 21
- 239000003054 catalyst Substances 0.000 claims description 19
- 229910052697 platinum Inorganic materials 0.000 claims description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 17
- 238000001816 cooling Methods 0.000 claims description 16
- 238000002156 mixing Methods 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 12
- 229910021485 fumed silica Inorganic materials 0.000 claims description 10
- 239000002253 acid Substances 0.000 claims description 5
- 239000006229 carbon black Substances 0.000 claims description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000006872 improvement Effects 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 238000009776 industrial production Methods 0.000 abstract description 2
- 238000007792 addition Methods 0.000 description 50
- 238000009987 spinning Methods 0.000 description 10
- QYLFHLNFIHBCPR-UHFFFAOYSA-N 1-ethynylcyclohexan-1-ol Chemical compound C#CC1(O)CCCCC1 QYLFHLNFIHBCPR-UHFFFAOYSA-N 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- 150000002431 hydrogen Chemical class 0.000 description 6
- 239000004677 Nylon Substances 0.000 description 5
- 239000004744 fabric Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 229920001778 nylon Polymers 0.000 description 5
- 239000011521 glass Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- UEXCJVNBTNXOEH-UHFFFAOYSA-N Ethynylbenzene Chemical group C#CC1=CC=CC=C1 UEXCJVNBTNXOEH-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000007650 screen-printing Methods 0.000 description 2
- MTEZSDOQASFMDI-UHFFFAOYSA-N 1-trimethoxysilylpropan-1-ol Chemical compound CCC(O)[Si](OC)(OC)OC MTEZSDOQASFMDI-UHFFFAOYSA-N 0.000 description 1
- VMAWODUEPLAHOE-UHFFFAOYSA-N 2,4,6,8-tetrakis(ethenyl)-2,4,6,8-tetramethyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane Chemical compound C=C[Si]1(C)O[Si](C)(C=C)O[Si](C)(C=C)O[Si](C)(C=C)O1 VMAWODUEPLAHOE-UHFFFAOYSA-N 0.000 description 1
- 229920002334 Spandex Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229920004933 Terylene® Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000002318 adhesion promoter Substances 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 239000004759 spandex Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
Classifications
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The application provides a two-component addition type silicone adhesive, and a preparation method and application thereof. The components of the two-component addition type silicone adhesive contain silane modified polyether with a structural formula shown as a formula (I), wherein n is 3-18. The application adopts the silane modified esterified polyether shown in the formula (I) to be added into the double-component addition type silicone adhesive, so that the adhesive strength of the adhesive to textiles can be effectively improved, and the improvement range is preferably more than 15%. The application can be prepared by directly adding the silane modified esterified polyether on the conventional process for preparing the double-component addition type silicone adhesive without changing the process, has simple flow and is suitable for industrial production.
Description
Technical Field
The application relates to the technical field of synthesis of adhesives for textiles, in particular to a two-component addition type silicone adhesive, and a preparation method and application thereof.
Background
With the development of textile technology and material technology, more and more adhesives are applied to textile industry, besides printing decorative patterns on textiles, adhesives can be coated on the surfaces of the textiles, so that the textiles are endowed with the functions of moisture permeability, water resistance, fire resistance, flame retardance, health care and the like, and different fibers or textiles can be bonded together to form composite materials or non-woven fabrics. Because of the high ductility and good skin-friendly and water-permeable properties of the silicone materials, in some application scenarios, such as applying an anti-slip coating to clothing or in the manufacture of underwear, the use of silicone adhesives to splice textiles has a better user comfort than the traditional textile industry in which different textiles are spliced by stitching. The two-component addition type silicone adhesive has the advantages of low toxicity, environmental protection, high curing speed, suitability for production in a production line and the like, and is widely applied because small molecules are hardly generated in the curing process. In recent years, with the development of textile industry, various synthetic fiber materials such as nylon, terylene, spandex and the like are continuously appeared, and the strength of bonding and splicing of textiles using the new materials is more required, so that the traditional two-component addition type silicone adhesive faces more challenges, and therefore, the two-component addition type silicone adhesive with stronger affinity to textile materials and higher bonding strength needs to be developed.
Disclosure of Invention
The first object of the application is to provide a two-component addition type silicone adhesive, wherein the components of the two-component addition type silicone adhesive contain silane modified polyether;
the molecular structural formula of the silane modified esterified polyether is shown as a formula (I):
wherein n is 3 to 18, more preferably n is 7 to 18. Wherein n is a positive integer.
According to the application, the silane modified esterified polyether shown in the formula (I) is added into the two-component addition type silicone adhesive, so that the adhesive strength of the adhesive to fabrics can be effectively improved.
In the present application, the silane-modified esterified polyether of the formula (I) may be added to either the A or B components of a two-component addition type silicone adhesive, and it is desirable to have the silane-modified esterified polyether in the same component as the inhibitor, preferably in the same component as the hydrogen-containing silicone oil and the inhibitor, and in a different component from the catalyst. In a preferred embodiment of the present application, the two-component addition type silicone adhesive comprises a component A and a component B; wherein the component A comprises vinyl silicone oil, inorganic filler, hexamethyldisilazane, water and platinum catalyst; wherein the component B comprises vinyl silicone oil, inorganic filler, hexamethyldisilazane, the silane modified polyether, hydrogen-containing silicone oil, inhibitor and water.
In a preferred embodiment of the present application, the vinyl silicone oils in the A and B components are the same type. Wherein the content of vinyl in the vinyl silicone oil is preferably 0.5-3 wt%. The vinyl silicone oil in the present application contains at least 2 vinyl groups per molecule. The viscosity (25 ℃) of the vinyl silicone oil is preferably 1000mPa.s to 20000mPa.s, more preferably 10000mPa.s to 15000mPa.s.
In a preferred embodiment of the present application, the inorganic fillers in the component A and the component B are the same in kind; the inorganic filler is one or more of gas-phase white carbon black, light or heavy calcium carbonate, alumina, silica micropowder and carbon black, and is preferably gas-phase white carbon black.
In a preferred embodiment of the present application, the platinum catalyst in the component A is one or more of a platinum-alkyne-based complex, an isopropanol solution of chloroplatinic acid, or a platinum-vinyl siloxane complex.
In a preferred embodiment of the present application, the hydrogen-containing silicone oil in the B component has an active hydrogen (i.e., si-H bonded to silicon) content of 0.3 to 0.7% by weight. The viscosity of the hydrogen-containing silicone oil is preferably 30 to 100mpa.s, and in the present application may be 30mpa.s, 40mpa.s, 50mpa.s, 60mpa.s, 70mpa.s, 80mpa.s, 90mpa.s, or 100 mpa.s. The inhibitor is preferably alkynol compound, which can be one or more of 1-ethynyl-1-cyclohexanol, phenylacetylene, tetramethyl tetravinyl cyclotetrasiloxane, 2-methyl-3-butynyl-2-alcohol and 3-methyl-1-ethynyl-3-alcohol, preferably 1-ethynyl-1-cyclohexanol.
In a preferred embodiment of the present application, the mass ratio of the vinyl silicone oil, the inorganic filler, the hexamethyldisilazane, the water and the platinum catalyst in the component A is (80 to 180): (15-40): (2-10): (1-4): (1 to 5), preferably (140 to 160): (30-35): (5-8): (1-4): (1-5).
In a preferred embodiment of the application, the mass ratio of the vinyl silicone oil, the inorganic filler, the hexamethyldisilazane, the water, the silane modified polyether, the hydrogen-containing silicone oil and the inhibitor in the component B is (60-120): (15-40): (2-10): (1-4): (2-10): (20-40): (0.5 to 5), preferably (90 to 110): (30-35): (5-8): (1-4): (2-10): (30-35): (0.5-5).
The two-component addition type silicone adhesive of the present application can be prepared using a preparation method commonly used in the art, and the silane-modified esterified polyether and the hydrogen-containing silicone oil are added to the components together with the inhibitor. In a preferred embodiment of the present application, the preparation method of the two-component addition type silicone adhesive comprises the following steps:
a component:
adding vinyl silicone oil, inorganic filler, hexamethyldisilazane and water into a kneader for multiple times, kneading for 0.5-1 h at room temperature, heating to 80-90 ℃ and kneading for 2-3 h, heating to 140-150 ℃ and kneading for 2-3 h, cooling, adding a platinum catalyst, and mixing in vacuum to obtain the catalyst;
and the component B comprises the following components:
adding vinyl silicone oil, inorganic filler, hexamethyldisilazane and water into a kneader for multiple times, kneading for 0.5-1 h at room temperature, heating to 80-90 ℃ for kneading for 2-3 h, heating to 140-150 ℃ for kneading for 2-3 h, cooling, adding silane modified esterified polyether shown in formula (I), hydrogen-containing silicone oil and inhibitor, and mixing in vacuum.
The component A (raw materials in the component A) in the two-component addition type silicone adhesive is preferably composed of vinyl silicone oil, inorganic filler, hexamethyldisilazane, water and platinum catalyst. The component B (raw materials in the component B) is preferably composed of vinyl silicone oil, inorganic filler, hexamethyldisilazane, the silane modified esterified polyether, hydrogen-containing silicone oil, inhibitor and water.
In the application, when the double-component addition type silicone adhesive provided by the application is used, the prepared component A and component B are mixed in proportion, and the mass ratio of the component A to the component B is 1 (1-1.2).
The application also aims to provide a preparation method of the two-component addition type silicone adhesive, which comprises the following steps:
a component:
adding vinyl silicone oil, inorganic filler, hexamethyldisilazane and water into a kneader for multiple times, kneading for 0.5-1 h at room temperature, heating to 80-90 ℃ and kneading for 2-3 h, heating to 140-150 ℃ and kneading for 2-3 h, cooling, adding a platinum catalyst, and mixing in vacuum to obtain the catalyst;
and the component B comprises the following components:
adding vinyl silicone oil, inorganic filler, hexamethyldisilazane and water into a kneader for multiple times, kneading for 0.5-1 h at room temperature, heating to 80-90 ℃ for kneading for 2-3 h, heating to 140-150 ℃ for kneading for 2-3 h, cooling, adding silane modified esterified polyether shown in formula (I), hydrogen-containing silicone oil and inhibitor, and mixing in vacuum.
Wherein, the consumption of vinyl silicone oil, inorganic filler, hexamethyldisilazane, water and platinum catalyst in the component A is preferably 80-180 parts, 15-40 parts, 2-10 parts, 1-4 parts and 1-5 parts respectively by weight. The amounts of vinyl silicone oil, inorganic filler, hexamethyldisilazane, water, silane modified esterified polyether, hydrogen-containing silicone oil and inhibitor in the component B are preferably 60 to 120 parts, 15 to 40 parts, 2 to 10 parts, 1 to 4 parts, 2 to 10 parts, 20 to 40 parts and 0.5 to 5 parts, respectively, by weight.
In the present application, the parts by weight may be those known in the art such as mu g, mg, g, kg, or may be multiples thereof such as 1/10, 1/100, 10 times, 100 times, etc.
When the double-component addition type silicone adhesive provided by the application is used, the component A and the component B are mixed in proportion and defoamed, the mixture is glued on the surface of a textile by means of screen printing or steel screen printing and the like, and the mixture can be rapidly cured at the temperature of more than 100 ℃. The two-component addition type silicone adhesive provided by the application can be preferably applied to the textile field, namely the two-component addition type silicone adhesive for textile.
The application also aims to provide the application of the two-component addition type silicone adhesive or the preparation method in the preparation of the adhesive for spinning.
The application adopts the silane modified esterified polyether shown in the formula (I) to be added into the double-component addition type silicone adhesive, so that the adhesive strength of the adhesive to textiles can be effectively improved by more than 8 percent, preferably more than 15 percent. The application can be prepared by directly adding the silane modified esterified polyether on the conventional process for preparing the double-component addition type silicone adhesive without changing the process, has simple flow and is suitable for industrial production. The silane modified esterified polyether used in the application is low in cost, and the esterified polyether serving as an additive is added into the two-component addition type silicone adhesive without affecting the overall cost of the formula.
Detailed Description
The following describes the embodiments of the present application in further detail with reference to examples. The following examples are illustrative of the application and are not intended to limit the scope of the application.
Example 1
The embodiment provides a two-component addition type silicone adhesive for spinning, which is prepared by the following steps:
a component:
1) 140 parts of vinyl silicone oil with the viscosity of 10000 Pa.s, 30 parts of fumed silica, 5 parts of hexamethyldisilazane and 2.5 parts of water are added into a kneader for a plurality of times, kneading is carried out for 3 minutes after each addition, and kneading is carried out for 1 hour at room temperature after all the additions are completed.
2) The temperature was raised to 85℃and kneaded for 2 hours.
3) The temperature was raised to 150℃and kneaded under vacuum for 2 hours.
4) After cooling, the mixture was transferred to a planetary mixer, and 2 parts of platinum catalyst (ethanol solution of chloroplatinic acid, platinum content: 0.15%) was added thereto, followed by vacuum mixing for 40 minutes to obtain a component A.
And the component B comprises the following components:
1) 100 parts of vinyl silicone oil with the viscosity of 10000 Pa.s, 30 parts of fumed silica, 5 parts of hexamethyldisilazane and 2.5 parts of water are added into a kneader for a plurality of times, kneading is carried out for 3 minutes after each addition, and kneading is carried out for 1 hour at room temperature after all the additions are completed.
2) The temperature was raised to 85℃and kneaded for 2 hours.
3) The temperature was raised to 150℃and kneaded under vacuum for 2 hours.
4) After cooling, transferring to a planetary mixer, adding 2 parts of silane modified esterified polyether shown as a formula (I) (wherein n is 3), 30 parts of hydrogen-containing silicone oil with viscosity of 50mPa.s and hydrogen (active hydrogen) content of 0.4%, and 0.6 part of 1-ethynyl-1-cyclohexanol inhibitor, and mixing in vacuum for 40 minutes to obtain a component B.
Example 2
The embodiment provides a two-component addition type silicone adhesive for spinning, which is prepared by the following steps:
the preparation method of the component A is the same as in example 1.
And the component B comprises the following components:
1) 100 parts of vinyl silicone oil with the viscosity of 10000 Pa.s, 30 parts of fumed silica, 5 parts of hexamethyldisilazane and 2.5 parts of water are added into a kneader for a plurality of times, kneading is carried out for 3 minutes after each addition, and kneading is carried out for 1 hour at room temperature after all the additions are completed.
2) The temperature was raised to 85℃and kneaded for 2 hours.
3) The temperature was raised to 150℃and kneaded under vacuum for 2 hours.
4) After cooling, transferring to a planetary mixer, adding 6 parts of silane modified esterified polyether shown as a formula (I) (wherein n is 7), 30 parts of hydrogen-containing silicone oil with the viscosity of 50mPa.s and the hydrogen (active hydrogen) content of 0.4%, and 0.6 part of 1-ethynyl-1-cyclohexanol inhibitor, and mixing in vacuum for 40 minutes to obtain a component B.
Example 3
The embodiment provides a two-component addition type silicone adhesive for spinning, which is prepared by the following steps:
the preparation method of the component A is the same as in example 1.
And the component B comprises the following components:
1) 100 parts of vinyl silicone oil with the viscosity of 10000 Pa.s, 30 parts of fumed silica, 5 parts of hexamethyldisilazane and 2.5 parts of water are added into a kneader for a plurality of times, kneading is carried out for 3 minutes after each addition, and kneading is carried out for 1 hour at room temperature after all the additions are completed.
2) The temperature was raised to 85℃and kneaded for 2 hours.
3) The temperature was raised to 150℃and kneaded under vacuum for 2 hours.
4) After cooling, transferring to a planetary mixer, adding 10 parts of silane modified esterified polyether shown as a formula (I) (wherein n is 18), 30 parts of hydrogen-containing silicone oil with viscosity of 50mPa.s and hydrogen (active hydrogen) content of 0.4%, and 0.6 part of 1-ethynyl-1-cyclohexanol inhibitor, and mixing in vacuum for 40 minutes to obtain a component B.
Example 4
The embodiment provides a two-component addition type silicone adhesive for spinning, which is prepared by the following steps:
the preparation method of the component A is the same as in example 1.
And the component B comprises the following components:
1) 100 parts of vinyl silicone oil with the viscosity of 10000 Pa.s, 30 parts of fumed silica, 5 parts of hexamethyldisilazane and 2.5 parts of water are added into a kneader for a plurality of times, kneading is carried out for 3 minutes after each addition, and kneading is carried out for 1 hour at room temperature after all the additions are completed.
2) The temperature was raised to 85℃and kneaded for 2 hours.
3) The temperature was raised to 150℃and kneaded under vacuum for 2 hours.
4) After cooling, transferring to a planetary mixer, adding 8 parts of silane modified esterified polyether shown as a formula (I) (wherein n is 14), 30 parts of hydrogen-containing silicone oil with viscosity of 50mPa.s and hydrogen (active hydrogen) content of 0.4%, and 0.6 part of 1-ethynyl-1-cyclohexanol inhibitor, and mixing in vacuum for 40 minutes to obtain a component B.
Example 5
The embodiment provides a two-component addition type silicone adhesive for spinning, which is prepared by the following steps:
a component:
1) 80 parts of vinyl silicone oil with the viscosity of 20000mpa.s, 40 parts of fumed silica, 10 parts of hexamethyldisilazane and 4 parts of water are added into a kneader for a plurality of times, kneading is carried out for 3 minutes after each addition, and kneading is carried out for 1 hour at room temperature after all the additions are completed.
2) The temperature was raised to 85℃and kneaded for 2 hours.
3) The temperature was raised to 150℃and kneaded under vacuum for 2 hours.
4) After cooling, the mixture was transferred to a planetary mixer, and 5 parts of platinum catalyst (ethanol solution of chloroplatinic acid, platinum content: 0.15%) was added thereto, followed by vacuum mixing for 40 minutes to obtain a component A.
And the component B comprises the following components:
1) 60 parts of vinyl silicone oil with the viscosity of 20000mpa.s, 40 parts of fumed silica, 10 parts of hexamethyldisilazane and 4 parts of water are added to a kneader for a plurality of times, kneading is carried out for 3 minutes after each addition, and kneading is carried out for 1 hour at room temperature after all the additions are completed.
2) The temperature was raised to 85℃and kneaded for 2 hours.
3) The temperature was raised to 150℃and kneaded under vacuum for 2 hours.
4) After cooling, transferring to a planetary mixer, adding 6 parts of silane modified esterified polyether shown as a formula (I) (wherein n is 7), 40 parts of hydrogen-containing silicone oil with viscosity of 50mPa.s and hydrogen (active hydrogen) content of 0.4%, 5 parts of 1-ethynyl-1-cyclohexanol inhibitor, and mixing in vacuum for 40 minutes to obtain a component B.
Example 6
The embodiment provides a two-component addition type silicone adhesive for spinning, which is prepared by the following steps:
a component:
1) 180 parts of vinyl silicone oil with the viscosity of 1000mPa.s, 15 parts of fumed silica, 2 parts of hexamethyldisilazane and 4 parts of water are added into a kneader for a plurality of times, kneading is carried out for 3 minutes after each addition, and kneading is carried out for 1 hour at room temperature after all the additions are completed.
2) The temperature was raised to 85℃and kneaded for 2 hours.
3) The temperature was raised to 150℃and kneaded under vacuum for 2 hours.
4) After cooling, the mixture was transferred to a planetary mixer, and 5 parts of platinum catalyst (ethanol solution of chloroplatinic acid, platinum content: 0.15%) was added thereto, followed by vacuum mixing for 40 minutes to obtain a component A.
And the component B comprises the following components:
1) 120 parts of vinyl silicone oil with the viscosity of 1000mPa.s, 15 parts of fumed silica, 2 parts of hexamethyldisilazane and 4 parts of water are added into a kneader for a plurality of times, kneading is carried out for 3 minutes after each addition, and kneading is carried out for 1 hour at room temperature after all the additions are completed.
2) The temperature was raised to 85℃and kneaded for 2 hours.
3) The temperature was raised to 150℃and kneaded under vacuum for 2 hours.
4) After cooling, transferring to a planetary mixer, adding 6 parts of silane modified esterified polyether shown as a formula (I) (wherein n is 7), 20 parts of hydrogen-containing silicone oil with viscosity of 50mPa.s and hydrogen (active hydrogen) content of 0.4%, and 0.5 part of 1-ethynyl-1-cyclohexanol inhibitor, and mixing in vacuum for 40 minutes to obtain a component B.
Comparative example 1
The comparative example provides a two-component addition type silicone adhesive for spinning, which is prepared by the following steps:
the preparation method of the A component and the B component is the same as in example 1, except that the B component is not added with the silane-modified esterified polyether.
Comparative example 2
The comparative example provides a two-component addition type silicone adhesive for spinning, which is prepared by the following steps:
the preparation method of the component A and the preparation method of the component B are the same as in the example 2, except that the component B is not added with the silane modified esterified polyether, and the gamma-glycidyl ether oxypropyl trimethoxysilane with the same amount is added.
Comparative example 3
The comparative example provides a two-component addition type silicone adhesive for spinning, which is prepared by the following steps:
the preparation method of the A component and the B component is the same as in example 2, except that the B component is not added with the silane modified esterified polyether, and an equal amount of gamma- (methacryloyloxy) propyl trimethoxysilane is added.
The adhesives prepared in examples 1-4 and comparative examples 1-3 were subjected to peel tests, the test results are shown in Table 1.
The components A and B prepared in the examples and the comparative examples are prepared according to the mass ratio of 1:1, mixing and defoaming, spreading nylon textile fabric on glass, applying glue on the nylon textile fabric, controlling the thickness of a solidified adhesive by using an adhesive tape with the thickness of 0.2 mm, then sequentially covering another piece of nylon textile fabric and glass, placing a weight of 2 kg on the glass, solidifying for 20 minutes at 120 ℃, cooling, removing upper and lower glass, cutting a sample into stripping test strips with the width of 10 mm, and testing 180-degree stripping strength on a universal stretcher.
Table 1 peel strength results table
From the data, compared with the traditional mode of not adding an adhesion promoter or adding monomer silane, the double-component addition type silicone adhesive of the silane modified esterified polyether provided by the application has better adhesion force on nylon textile fabric, and the improvement range is more than 8%, preferably more than 15%.
Finally, the method of the present application is only a preferred embodiment and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (11)
1. The double-component addition type silicone adhesive is characterized by comprising a component A and a component B;
the component A consists of vinyl silicone oil, inorganic filler, hexamethyldisilazane, water and platinum catalyst; the mass ratio of vinyl silicone oil, inorganic filler, hexamethyldisilazane, water and platinum catalyst in the component A is (80-180): (15-40): (2-10): (1-4): (1-5);
the component B comprises vinyl silicone oil, inorganic filler, hexamethyldisilazane, silane modified esterified polyether, hydrogen-containing silicone oil, inhibitor and water; the mass ratio of vinyl silicone oil, inorganic filler, hexamethyldisilazane, water, the silane modified polyether, hydrogen-containing silicone oil and inhibitor in the component B is (60-120): (15-40): (2-10): (1-4): (2-10): (20-40): (0.5-5);
the molecular structural formula of the silane modified esterified polyether is shown as a formula (I):
wherein n is 3 to 18.
2. The two-component addition type silicone adhesive according to claim 1, wherein n is 7 to 18.
3. The two-component addition type silicone adhesive according to claim 1 or 2, wherein the weight ratio of the component A to the component B is 1 (1-1.2).
4. The two-component addition type silicone adhesive according to claim 1 or 2, wherein the inorganic filler in the a component and the inorganic filler in the B component are the same in kind; the inorganic filler is one or more of gas-phase white carbon black, light or heavy calcium carbonate, alumina, silica micropowder and carbon black.
5. The two-component addition type silicone adhesive according to claim 4, wherein the inorganic filler is fumed silica.
6. The two-component addition type silicone adhesive according to claim 1 or 2, wherein the types of vinyl silicone oils in the a component and the B component are the same; the vinyl content of the vinyl silicone oil is 0.5-3wt% and the viscosity is 1000-20000 Pa.
7. The two-component addition type silicone adhesive according to claim 1 or 2, wherein the hydrogen content in the hydrogen-containing silicone oil is 0.3wt% to 0.7wt%;
and/or the inhibitor is an alkynol compound;
and/or the platinum catalyst is one or more of platinum-alkyne complex, isopropanol solution of chloroplatinic acid or platinum-vinyl siloxane complex.
8. The two-component addition type silicone adhesive according to claim 1 or 2, wherein the mass ratio of vinyl silicone oil, inorganic filler, hexamethyldisilazane, water and platinum catalyst in the component a is (140-160): (30-35): (5-8): (1-4): (1-5).
9. The two-component addition type silicone adhesive according to claim 1 or 2, wherein the mass ratio of vinyl silicone oil, inorganic filler, hexamethyldisilazane, water, the silane modified esterified polyether, hydrogen-containing silicone oil and inhibitor in the component B is (90-110): (30-35): (5-8): (1-4): (2-10): (30-35): (0.5-5).
10. The method for preparing the two-component addition type silicone adhesive according to claim 1 or 2, comprising the following steps:
a component:
adding vinyl silicone oil, inorganic filler, hexamethyldisilazane and water into a kneader for multiple times, kneading for 0.5-1 h at room temperature, heating to 80-90 ℃ and kneading for 2-3 h, heating to 140-150 ℃ and kneading for 2-3 h, cooling, adding a platinum catalyst, and mixing in vacuum to obtain the catalyst;
and the component B comprises the following components:
adding vinyl silicone oil, inorganic filler, hexamethyldisilazane and water into a kneader for multiple times, kneading for 0.5-1 h at room temperature, heating to 80-90 ℃ for kneading for 2-3 h, heating to 140-150 ℃ for kneading for 2-3 h, cooling, adding silane modified esterified polyether shown in formula (I), hydrogen-containing silicone oil and inhibitor, and mixing in vacuum.
11. Use of the two-component addition type silicone adhesive according to any one of claims 1 to 9 for the preparation of adhesives for textiles.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5552223A (en) * | 1992-10-30 | 1996-09-03 | Dow Corning Toray Silicone Co., Ltd. | Organopolysiloxane modified polyesters and method of the preparation thereof |
| CN108219671A (en) * | 2018-01-11 | 2018-06-29 | 佛山市天宝利硅工程科技有限公司 | A kind of bi-component addition type liquid silastic and preparation method thereof |
| CN113929897A (en) * | 2021-11-01 | 2022-01-14 | 江西晨光新材料股份有限公司 | Silane modified esterified polyether and preparation method and application thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5552223A (en) * | 1992-10-30 | 1996-09-03 | Dow Corning Toray Silicone Co., Ltd. | Organopolysiloxane modified polyesters and method of the preparation thereof |
| CN108219671A (en) * | 2018-01-11 | 2018-06-29 | 佛山市天宝利硅工程科技有限公司 | A kind of bi-component addition type liquid silastic and preparation method thereof |
| CN113929897A (en) * | 2021-11-01 | 2022-01-14 | 江西晨光新材料股份有限公司 | Silane modified esterified polyether and preparation method and application thereof |
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