CN105038681A - Silane modified resin sealing gum and preparing method thereof - Google Patents
Silane modified resin sealing gum and preparing method thereof Download PDFInfo
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- CN105038681A CN105038681A CN201510543823.3A CN201510543823A CN105038681A CN 105038681 A CN105038681 A CN 105038681A CN 201510543823 A CN201510543823 A CN 201510543823A CN 105038681 A CN105038681 A CN 105038681A
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Abstract
The invention discloses a silane modified resin sealing gum and a preparing method thereof. The silane modified resin sealing gum comprises, by weight, 100 parts of silane modified resin, 50-140 parts of plasticizer, 1-5 parts of water absorbent, 80-140 parts of calcium carbonate, 2-10 parts of titanium dioxide, 1-5 parts of fumed silica, 2-5 parts of accelerant and 1-5 parts of catalyst. The accelerant is prepared from isocyanate and a silane coupling agent with reactive hydrogen groups at one end, and the mole ratio of -NCO and -HX is 1:1 or 1:1.1. By means of the silane modified resin sealing gum formed through the scheme, metal base materials such as steel and aluminum products can be well bonded under the situation that prime coatings are not used, and the strength of the sealing gum can be improved.
Description
Technical field
The present invention relates to a kind of tackiness agent, be specifically related to a kind of resin sealer and preparation method thereof.
Background technology
Seal gum general at present mainly contains three kinds: polyurethane sealant, silicone adhesive and polysulfide sealant.This three classes seal gum has respective advantage, but also there is the shortcoming being difficult to overcome, such as:
Polyurethane sealant easily foams at high temperature and high humidity environment in glue-line, weather-proof and poor heat resistance, and product long-term stability stores difficulty, and the deep cure of resin is slow, and being easily clamminess in surface, to the bonding difference of nonporous substrate, primary coat need be coordinated to use;
Low molecule inclusion inner in silicone adhesive is exosmosed, and the periphery of butt seam and the contiguous position at the place that is tightly connected produce pollution, and the covering with paint on its surface is poor, and wear no resistance, tear strength is low;
Its weather resistance of polysulfide sealant and anti-deformational displacement ability, in life-time service, be subject to the impact of disulfide bond joint unstable in molecule, the tension set of compression and elongation becomes greatly gradually, be full of cracks appears in surface, there will be drastic crack trace for a long time, winter hardiness is not good, and sizing material is stink.
Silane-modified resin seal gum comprises silicane-modified polyurethane seal gum and silane modified polyether seal glue, it has good weathering resistance, water-fast, heat-resisting, ageing-resistant, process operability is good, the advantage such as environmentally friendly, is developed rapidly in Japan and American-European countries.But the intensity of existing silane-modified resin seal gum is lower, is not suitable for the field of high-shear.
As can be seen here, the intensity improving silane-modified resin seal gum is that this area needs the problem that will solve badly.
Summary of the invention
Intensity for existing silane-modified resin seal gum is lower, is not suitable for the problem in high-shear field, the object of the present invention is to provide a kind of high strength silane-modified resin seal gum with excellent mechanical property, cementability and stability in storage.
Simultaneously for this high strength silane-modified resin seal gum, also provide a kind of preparation method of this high strength silane-modified resin seal gum.
In order to achieve the above object, the present invention adopts following technical scheme:
A kind of silane-modified resin seal gum, this resin sealer adds promotor, and this promotor react with the silane coupling agent of active hydrogen group by polyisocyanates and one end and obtained, and wherein the mol ratio of-NCO and-HX is 1:1 or 1:1.1.
Preferably, described promotor is for all to close NCO group, and without NCO group, end group is all the promotor of siloxane groups.
Preferably, the concrete synthetic method of described promotor is as follows:
First, isocyanic ester is put into reactor, Heating temperature is to 50 DEG C; Then slowly instill the silane coupling agent of calculated amount, at 60 DEG C ~ 70 DEG C temperature, react 1.5 ~ 3.5h, obtained promotor.
Preferably, described isocyanic ester comprises diphenylmethanediisocyanate, tolylene diisocyanate, 4,4 '-dicyclohexyl methane diisocyanate, PPDI, 1,6-di-isocyanate (HDI), isophorone diisocyanate (IPDI) and HDI tripolymer etc.; Described silane coupling agent comprises phenylaminomethyl triethoxyl silane, phenylamino propyl-triethoxysilicane, phenylamino propyl trimethoxy silicane, γ mercaptopropyitrimethoxy silane, two (γ-trimethoxy-silylpropyl) amine, N-(normal-butyl)-γ-aminopropyltrimethoxysilane, N-(β-aminoethyl)-γ-aminopropyltriethoxy dimethoxysilane, 3-piperazinopropyl methyl dimethoxysilane, N-cyclohexyl-γ-aminopropyltriethoxy dimethoxysilane etc.
Preferably, each component of described silane-modified resin seal gum and parts by weight as follows:
Preferably, described softening agent is selected from phthalate, comprises one or more in dioctyl phthalate (DOP), diisononyl phthalate, Di Iso Decyl Phthalate, phthalic acid two (2-propyl group heptan) ester etc.
Preferably, described water-retaining agent comprises one or more in vinyltrimethoxy silane, vinyl methyl dimethoxysilane, vinyltriethoxysilane etc.
Preferably, described calcium carbonate comprises one or more in water-ground limestone, nano-calcium carbonate.
Preferably, described catalyzer comprises the one in di-n-butyltin dilaurate, stannous octoate, two (acetylacetone based) dibutyl tin.
For above-mentioned silane-modified resin seal gum, its preparation methods steps is as follows:
(1) by filler dry 5 ~ 24h under 120 DEG C of conditions;
(2) by softening agent, silane-modified performed polymer, adds in stirred autoclave in proportion, vacuum, stirring deaeration 0.5h;
(3) stop stirring, add dried calcium carbonate, titanium dioxide, aerosil in proportion, vacuum, stirring 1 ~ 2h;
(4) water-retaining agent is added in proportion, vacuum stirring 20min in compound step (3) obtained;
(5) compound that step (4) obtains is added promotor in proportion;
(6) catalyzer is added in proportion;
(7) continue vacuum stirring 10 ~ 20min, mix;
(8) be filled with nitrogen and remove vacuum to normal pressure, discharging packing, obtains silane-modified seal gum.
Glue still described in step (2) (3) (4) (5) (6) (7) is double-planet mixing and blending machine.
The present invention, by a kind of novel promotor of synthesis, is applied to silane-modified resin seal gum, can improves intensity and the cementability of silane-modified resin seal gum.
Utilize the silane-modified resin seal gum that scheme provided by the invention is formed, can in the situation not using primary coat, to metal base, as steel, aluminium etc. realize good bonding, and the intensity of seal gum can be improved.Concrete outcome is as following table:
1., with silane-modified resin seal gum prepared by the present invention, when not applying primary coat, to metal base, as steel, aluminium etc. reach good adhesive effect, concrete outcome is as following table (CF represents cohesive layer and destroys):
| Base material kind | Use common adhesion promoters seal gum adhesive effect | Use adhesive effect of the present invention |
| Aluminium 1060 | 45％CF | 95％CF |
| Stainless steel 304 | 50％CF | 95％CF |
2. the silane-modified resin seal gum using scheme provided by the invention to prepare, does not apply primary coat steel plate and shearing sheet made by aluminium sheet, and its shearing resistance is as shown in the table:
Embodiment
The technique means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with specific examples, setting forth the present invention further.
The present invention is directed to the defect that existing silane-modified resin seal gum intensity is lower, synthesize a kind of novel silicane adhesion promoters, be applied to silane-modified resin seal gum, the intensity of silane-modified resin seal gum can be improved, make it have excellent mechanical property and cementability.
The synthesis of this promotor reacts obtained by isocyanic ester and one end with the silane coupling agent of active hydrogen group, and wherein-NCO is 1:1 or 1:1.1 with the mol ratio of-HX; And NCO group is all closed, make a kind of without NCO group, end group is all the promotor of siloxane groups.Because silylation can react with substrate surface active function groups, this type of adhesion promoters can improve the bonding force of seal gum and difficult substrates (as stainless steel, aluminium sheet, black surround glass); And cross-linking density can be increased, thus improve the mechanical property of seal gum.
Moreover, because end group is all siloxane groups, resin solidification reaction can be participated in after its hydrolysis, improve the cross-linking density of resin, then improve mechanical property; The amido formate that isocyanic ester is formed or urea groups polarity are strong, and that can improve polar substrates is bonding.The promotor formed thus can improve the mechanical property (having excellent tensile strength, shearing resistance and high bonding strength) of silane-modified resin seal gum.
The concrete synthetic method of this kind of silicane adhesion promoters is as follows:
First, isocyanic ester is put into reactor, Heating temperature is to 50 DEG C.
Then, slowly the silane coupling agent of instillation calculated amount, reacts 1.5 ~ 3.5h at 60 DEG C ~ 70 DEG C temperature, obtained a kind of promotor.
In the synthesis of above-mentioned promotor, isocyanic ester comprises diphenylmethanediisocyanate, tolylene diisocyanate, 4,4 '-dicyclohexyl methane diisocyanate, PPDI, 1,6-di-isocyanate (HDI), isophorone diisocyanate (IPDI) and HDI tripolymer etc., the silane coupling agent coordinated with it comprises phenylaminomethyl triethoxyl silane, phenylamino propyl-triethoxysilicane, phenylamino propyl trimethoxy silicane, γ mercaptopropyitrimethoxy silane, two (γ-trimethoxy-silylpropyl) amine, N-(normal-butyl)-γ-aminopropyltrimethoxysilane, N-(β-aminoethyl)-γ-aminopropyltriethoxy dimethoxysilane, 3-piperazinopropyl methyl dimethoxysilane, N-cyclohexyl-γ-aminopropyltriethoxy dimethoxysilane etc.
On this basis, present invention also offers there is synergistic concrete formula:
The present invention also with the addition of the silane-modified performed polymer of certain component (weight part) in the material component of silane-modified resin seal gum.
This silane-modified performed polymer specifically adopts silane modified polyether resin and silicane-modified polyurethane two kinds of resins.
The present invention also with the addition of the softening agent of certain component (weight part) in the material component of silane-modified resin seal gum, for more soft high resilience after realizing sealing glue solidifying.
This softening agent is selected from phthalate, comprises one or more in dioctyl phthalate (DOP), diisononyl phthalate, Di Iso Decyl Phthalate, phthalic acid two (2-propyl group heptan) ester etc.
The present invention also with the addition of the water-retaining agent of certain component (weight part) in the material component of silane-modified resin seal gum.
This water-retaining agent specifically comprise to vinyltrimethoxy silane, vinyl methyl dimethoxysilane, vinyltriethoxysilane one or more.Effectively can be absorbed the moisture in glue by this kind of water-retaining agent, improve stability in storage.
The present invention also with the addition of the calcium carbonate of certain component (weight part) in the material component of silane-modified resin seal gum.
This calcium carbonate specifically comprise in water-ground limestone, nano-calcium carbonate one or more.Filled as filler by this kind of calcium carbonate, effectively reduce costs, and Namigai also will play strengthening action.
The present invention also with the addition of the titanium dioxide of certain component (weight part) in the material component of silane-modified resin seal gum, for painted.
The present invention also with the addition of the aerosil of certain component (weight part) in the material component of silane-modified resin seal gum, for improving viscosity, the conformality of glue.
The present invention also with the addition of the catalyzer of certain component (weight part) in the material component of silane-modified resin seal gum, for accelerating curing speed.
This catalyzer specifically comprises the one in di-n-butyltin dilaurate, stannous octoate, two (acetylacetone based) dibutyl tin.
Accordingly, the present invention, on the basis of such scheme, provides a kind of silane-modified resin seal gum, each component of this silane-modified resin seal gum and parts by weight as follows:
For the silane-modified resin seal gum be made up of according to corresponding proportioning said components, the present invention also provides corresponding preparation method.Utilize this preparation method as follows to the process preparing silane-modified resin seal gum:
(1) by filler (as powder such as calcium carbonate, titanium dioxide, white carbon blacks) dry 5 ~ 24h under 120 DEG C of conditions;
(2) by softening agent, silane-modified resin, adds in proportion in stirred autoclave, vacuumizes, and stirs deaeration 0.5h;
(3) stop stirring, add dried calcium carbonate, titanium dioxide, aerosil in proportion, stir and vacuumize 1 ~ 2h;
(4) by the compound nitrogen protection that step (3) obtains, add water-retaining agent in proportion, vacuumize rear closedown vacuum valve, stir 20min;
(5) by the compound nitrogen protection that step (4) obtains, promotor is added in proportion;
(6) under nitrogen protection condition, catalyzer is added in proportion;
(7) vacuumize, continue stirring 10 ~ 20min, mix;
(8) be filled with nitrogen and remove vacuum to normal pressure, discharging packing, obtains silane-modified seal gum.
In above-mentioned preparation process, the glue still used is double-planet mixing and blending machine.
Below in conjunction with specific embodiment, set forth the present invention further.Should be understood that these embodiments are only not used in for illustration of the present invention to limit the scope of the invention.
Unless otherwise defined or described herein, all specialties used herein and scientific words and those skilled in the art the same meaning be familiar with.In addition any method similar or impartial to described content and material all can be applicable in the inventive method.
Before preparing silane-modified resin seal gum, first synthesize corresponding promotor, as an example, this example provides following three kinds of promotor:
Promotor I (-NCO/-NH mol ratio is 1:1) (the following stated is mass fraction)
During synthesis accelerant 1, first, add in reactor by 4,4-diphenylmethanediisocyanate (MDI) 50 parts, to 50 DEG C, Heating temperature treats that it dissolves completely.
Then, slowly instill 136 parts of silane coupling agents two (γ-trimethoxy-silylpropyl) amine with dropping funnel, under 70 DEG C of conditions, react 1.5h, obtained promotor I.
Promotor II (-NCO/-NH mol ratio is 1:1.1)
During synthesizing silane class adhesion promoters 2, first, add in reactor by hexamethylene diisocyanate (HDI) 50 parts, Heating temperature is to 50 DEG C.
Then, slowly instill 167 parts of phenylamino propyl trimethoxy silicanes with dropping funnel, under the condition of 80 DEG C, react 3h, obtained promotor II.
Promotor III (-NCO/-NH mol ratio is 1:1)
During synthesizing silane class adhesion promoters 3, first, add in reactor by isophorone diisocyanate (IPDI) 50 parts, Heating temperature is to 50 DEG C.
Then, slowly instill 105.8 parts of N-(normal-butyl)-γ-aminopropyltrimethoxysilanes with dropping funnel, under 80 DEG C of conditions, react 3h, obtained promotor III.
Based on above-mentioned three kinds of promotor, silane-modified resin seal gum to prepare example as follows:
Embodiment 1:
The silane-modified resin seal gum that this example provides comprises and takes following component with parts by weight:
The preparation process of this silane-modified resin seal gum is as follows:
Dioctyl phthalate (DOP) 50 parts is added by formula, silicane-modified polyurethane resin 100 parts, stir vacuumizing and defoaming 0.5h, stirring is stopped to add water-ground limestone 80 parts, titanium dioxide 10 parts and aerosil 5 parts of stirrings vacuumize 1h, subsequently by compound nitrogen protection, add vinyltrimethoxy silane 1 part, vacuumize rear pressurize 20min, subsequently by compound nitrogen protection, add promotor I 2 parts, add two (acetylacetone based) dibutyl tin 2 parts under nitrogen protection, vacuumize, after continuing to stir 10min, inflated with nitrogen is to normal pressure, namely discharging packing obtains silicane-modified polyurethane seal gum 1.
Directly stamp bonding at aluminium base and steel substrate with gained seal gum 1, after a couple of days, find that adhesive effect can reach 95%CF.
Embodiment 2:
The silane-modified resin seal gum that this example provides comprises and takes following component with parts by weight:
The preparation process of this silane-modified resin seal gum is as follows:
Diisononyl phthalate 140 parts is added by formula, silicane-modified polyurethane resin 100 parts, stir vacuumizing and defoaming 0.5h, stirring is stopped to add water-ground limestone 20 parts, nano-calcium carbonate 120 parts, titanium dioxide 2 parts and aerosil 1 part of stirring vacuumize 1h, subsequently compound is carried out nitrogen protection, add vinyltriethoxysilane 5 parts, vacuumize rear pressurize 20min, subsequently by compound nitrogen protection, add promotor II5 part, add dibutyl tin laurate 2 parts under nitrogen protection, vacuumize, after continuing to stir 10min, inflated with nitrogen is to normal pressure, namely discharging packing obtains silicane-modified polyurethane seal gum 2.
Directly stamp bonding at aluminium base and steel substrate with gained seal gum 2, after a couple of days, find that adhesive effect can reach 98%CF.
Embodiment 3:
The silane-modified resin seal gum that this example provides comprises and takes following component with parts by weight:
The preparation process of this silane-modified resin seal gum is as follows:
Di Iso Decyl Phthalate 80 parts is added by formula, silane modified polyether resin 100 parts, stir vacuumizing and defoaming 0.5h, stirring is stopped to add water-ground limestone 32 parts, nano-calcium carbonate 63 parts, titanium dioxide 4 parts and aerosil 2 parts of stirrings vacuumize 1h, subsequently by compound nitrogen protection, add vinyltrimethoxy silane 2 parts, vacuumize rear pressurize 20min, subsequently by compound nitrogen protection, add promotor III3 part, add stannous octoate 3 parts under nitrogen protection, vacuumize, after continuing to stir 10min, inflated with nitrogen is to normal pressure, namely discharging packing obtains silane modified polyether seal glue 3.
Directly stamp bonding at aluminium base and steel substrate with gained seal gum 3, after a couple of days, find that adhesive effect can reach 97%CF.
Embodiment 4:
The silane-modified resin seal gum that this example provides comprises and takes following component with parts by weight:
The preparation process of this silane-modified resin seal gum is as follows:
Phthalic acid two (2-propyl group heptan) ester 100 parts is added by formula, silane modified polyether resin 100 parts, stir vacuumizing and defoaming 0.5h, stirring is stopped to add water-ground limestone 52.5 parts, nano-calcium carbonate 52.5 parts, titanium dioxide 6 parts and aerosil 3 parts of stirrings vacuumize 1h, nitrogen is poured subsequently to batch mixing, by compound nitrogen protection, add vinyl methyl dimethoxysilane 3 parts, vacuumize rear pressurize 20min, nitrogen is poured subsequently to batch mixing, by compound nitrogen protection, add promotor II 3.5 parts, add dibutyl tin laurate 4 parts under nitrogen protection, vacuumize, after continuing to stir 10min, inflated with nitrogen is to normal pressure, namely discharging packing obtains silane modified polyether seal glue 4.
Directly stamp bonding at aluminium base and steel substrate with gained seal gum 4, after a couple of days, find that adhesive effect can reach 100%CF.
Comparative example 1:
The common silane-modified resin seal gum that this comparative example provides comprises and takes following component with parts by weight:
The preparation process of this common silane-modified resin seal gum is as follows:
Dioctyl phthalate (DOP) 50 parts is added by formula, silicane-modified polyurethane resin 100 parts, stir vacuumizing and defoaming 0.5h, stirring is stopped to add water-ground limestone 80 parts, titanium dioxide 10 parts and aerosil 5 parts of stirrings vacuumize 1h, nitrogen is poured subsequently to batch mixing, add vinyltrimethoxy silane 1 part, vacuumize rear pressurize 20min, nitrogen is poured subsequently to batch mixing, add common coupling agent KH5502 part, add two (acetylacetone based) dibutyl tin 2 parts under nitrogen protection, vacuumize, after continuing to stir 10min, inflated with nitrogen is to normal pressure, namely discharging packing obtains common silane-modified resin seal gum 1.
Directly stamp bonding at aluminium base and steel substrate with gained common silane-modified resin seal gum 1, after a couple of days, find 55%CF on steel plate and aluminium sheet.
Comparative example 2:
The common silane-modified resin seal gum that this comparative example provides comprises and takes following component with parts by weight:
The preparation process of this common silane-modified resin seal gum is as follows:
Diisononyl phthalate 140 parts is added by formula, silicane-modified polyurethane resin 100 parts, stir vacuumizing and defoaming 0.5h, stirring is stopped to add water-ground limestone 20 parts, nano-calcium carbonate 120 parts, titanium dioxide 2 parts and aerosil 1 part of stirring vacuumize 1h, nitrogen is poured subsequently to batch mixing, add vinyltriethoxysilane 5 parts, vacuumize rear pressurize 20min, nitrogen is poured subsequently to batch mixing, add coupling agent KH5505 part, add dibutyl tin laurate 2 parts under nitrogen protection, vacuumize, after continuing to stir 10min, inflated with nitrogen is to normal pressure, namely discharging packing obtains common silane-modified resin seal gum 2.
Directly stamp bonding at aluminium base and steel substrate with gained common silane-modified resin seal gum 2, after a couple of days, find 60%CF on steel plate and aluminium sheet.
Comparative result:
Directly stamp bonding at aluminium base and steel substrate with the silane modified polyether seal glue 1-5 of the invention process case 1-5 gained with contrast case 1-2 gained common silane-modified resin seal gum 1-2, the contrast of the tensile strength recorded after a couple of days, shearing resistance and destruction situation is as following table:
| Tensile strength | Shearing resistance | Destruction situation | |
| Embodiment 1 | 2.2 | 1.9 | 95％CF |
| Embodiment 2 | 2.4 | 2.0 | 98％CF |
| Embodiment 3 | 2.4 | 1.9 | 97％CF |
| Embodiment 4 | 2.5 | 2.1 | 100％CF |
| Comparative example 1 | 1.2 | 0.9 | 55％CF |
| Comparative example 2 | 1.4 | 1.0 | 60％CF |
Known by above-mentioned contrast table, the present invention prepares silane-modified resin seal gum by the promotor of synthesizing new, the mechanical property of silane-modified resin seal gum can be significantly improved, make it have very excellent tensile strength, shearing resistance and high bonding strength, reach beyond thought effect.
More than show and describe ultimate principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (10)
1. a silane-modified resin seal gum, is characterized in that, described resin sealer adds promotor, and this promotor react with the silane coupling agent of active hydrogen group by isocyanic ester and one end and obtained, and wherein the mol ratio of-NCO and-HX is 1:1 or 1:1.1.
2. a kind of silane-modified resin seal gum according to claim 1, is characterized in that, described promotor is for all to close NCO group, and without NCO group, end group is all the promotor of siloxane groups.
3. a kind of silane-modified resin seal gum according to claim 1, is characterized in that, the concrete synthetic method of described promotor is as follows:
First, isocyanic ester is put into reactor, Heating temperature is to 50 DEG C; Then slowly instill the silane coupling agent of calculated amount, at 60 DEG C ~ 70 DEG C temperature, react 1.5 ~ 3.5h, obtained promotor.
4. a kind of silane-modified resin seal gum according to claim 1 or 3, it is characterized in that, described isocyanic ester comprises diphenylmethanediisocyanate, tolylene diisocyanate (TDI), 4,4 '-dicyclohexyl methane diisocyanate, PPDI, 1,6-di-isocyanate (HDI), isophorone diisocyanate (IPDI) and HDI tripolymer etc.; Described silane coupling agent comprises phenylaminomethyl triethoxyl silane, phenylamino propyl-triethoxysilicane, phenylamino propyl trimethoxy silicane, γ mercaptopropyitrimethoxy silane, two (γ-trimethoxy-silylpropyl) amine, N-(normal-butyl)-γ-aminopropyltrimethoxysilane, N-(β-aminoethyl)-γ-aminopropyltriethoxy dimethoxysilane, 3-piperazinopropyl methyl dimethoxysilane, N-cyclohexyl-γ-aminopropyltriethoxy dimethoxysilane.
5. the silane-modified resin seal gum according to any one of claim 1-4, is characterized in that, each component and the parts by weight of described silane-modified resin seal gum are as follows:
6. a kind of silane-modified resin seal gum according to claim 5, it is characterized in that, described softening agent is selected from phthalate, comprises one or more in dioctyl phthalate (DOP), diisononyl phthalate, Di Iso Decyl Phthalate, phthalic acid two (2-propyl group heptan) ester etc.
7. a kind of silane-modified resin seal gum according to claim 5, is characterized in that, described water-retaining agent comprises one or more in vinyltrimethoxy silane, vinyl methyl dimethoxysilane, vinyltriethoxysilane etc.
8. a kind of silane-modified resin seal gum according to claim 5, is characterized in that, described calcium carbonate comprise in water-ground limestone, nano-calcium carbonate one or more.
9. a kind of silane-modified resin seal gum according to claim 5, is characterized in that, described catalyzer comprises the one in di-n-butyltin dilaurate, stannous octoate, two (acetylacetone based) dibutyl tin.
10. a preparation method for the silane-modified resin seal gum according to any one of claim 1-9, is characterized in that, described preparation method comprises the steps:
(1) by filler dry 5 ~ 24h under 120 DEG C of conditions;
(2) by softening agent, silane-modified performed polymer, adds in stirred autoclave in proportion, vacuum, stirring deaeration 0.5h;
(3) stop stirring, add dried calcium carbonate, titanium dioxide, aerosil in proportion, vacuum stirring 1 ~ 2h;
(4) water-retaining agent is added in proportion, vacuum stirring 20min in compound step (3) obtained;
(5) compound that step (4) obtains is added promotor in proportion;
(6) catalyzer is added in proportion;
(7) continue vacuum stirring 10 ~ 20min, mix;
(8) be filled with nitrogen and remove vacuum to normal pressure, discharging packing, obtains silane-modified seal gum.
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| CN106566453A (en) * | 2016-10-20 | 2017-04-19 | 马鞍山市盛力锁业科技有限公司 | Conductive silane-terminated polyurethane sealant with wide temperature application range, and preparation method thereof |
| CN106566455A (en) * | 2016-10-20 | 2017-04-19 | 马鞍山市盛力锁业科技有限公司 | Conducting polyurethane sealant having high peeling strength and preparation method of conducting polyurethane sealant |
| CN106566452A (en) * | 2016-10-20 | 2017-04-19 | 马鞍山市盛力锁业科技有限公司 | Electroconductive one-component moisture-curable silane-terminated polyurethane sealant and preparation method thereof |
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| CN107987507A (en) * | 2017-12-15 | 2018-05-04 | 上海东大化学有限公司 | The nano-calcium carbonate of polyether carboxylation's modification, include its fluid sealant and preparation method thereof |
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| CN108485586A (en) * | 2018-02-09 | 2018-09-04 | 广东普赛达密封粘胶有限公司 | A kind of dendritic silane modified polyurethane composition of high shear strength and preparation method thereof |
| CN108531120A (en) * | 2018-03-30 | 2018-09-14 | 广东普赛达密封粘胶有限公司 | Low modulus one-component silane modified polyether seal glue of a kind of high resiliency and preparation method thereof |
| CN108531120B (en) * | 2018-03-30 | 2021-02-02 | 广东普赛达密封粘胶有限公司 | High-elasticity low-modulus single-component silane modified polyether sealant and preparation method thereof |
| CN109929497A (en) * | 2019-04-08 | 2019-06-25 | 宜昌众智环保科技有限公司 | A kind of MS sealant processing technology |
| CN111205773A (en) * | 2019-12-25 | 2020-05-29 | 北京华实腾达材料技术有限公司 | Waterproof coating for building enclosure structure |
| CN111500241A (en) * | 2020-04-27 | 2020-08-07 | 上海善治环境技术有限公司 | Permeable adhesive applied to pipeline repair and preparation method thereof |
| CN111621254A (en) * | 2020-05-26 | 2020-09-04 | 西卡(上海)管理有限公司 | Preparation method of ceramic tile repairing glue and glue thereof |
| CN111777930A (en) * | 2020-07-12 | 2020-10-16 | 西卡(上海)管理有限公司 | Single-component yellowing-resistant crack beautifying agent and preparation method thereof |
| CN113788642A (en) * | 2021-08-25 | 2021-12-14 | 广东美涂士建材股份有限公司 | High-viscosity tile adhesive |
| CN113667095A (en) * | 2021-09-03 | 2021-11-19 | 巩义市泛锐熠辉复合材料有限公司 | Bonding auxiliary agent for foamed plastic, preparation method and application |
| CN113896852A (en) * | 2021-09-03 | 2022-01-07 | 巩义市泛锐熠辉复合材料有限公司 | Bonding auxiliary agent for foamed plastic, preparation method and application |
| CN113667095B (en) * | 2021-09-03 | 2023-03-10 | 巩义市泛锐熠辉复合材料有限公司 | Bonding auxiliary agent for foamed plastic, preparation method and application |
| CN114989763A (en) * | 2022-06-16 | 2022-09-02 | 江苏承固新材料科技有限公司 | Environment-friendly asphalt modified silane polymer sealant and preparation method thereof |
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