CN102127387B - Hydrogenated castor oil intercalated montmorillonite modified single-component polyurethane sealant and preparation method thereof - Google Patents
Hydrogenated castor oil intercalated montmorillonite modified single-component polyurethane sealant and preparation method thereof Download PDFInfo
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Abstract
The invention discloses hydrogenated castor oil intercalated montmorillonite modified single-component polyurethane sealant and a preparation method thereof. The sealant comprises the following components in parts by weight: 100 parts of polyurethane prepolymer, 1-30 parts of hydrogenated castor oil intercalated montmorillonite, 10-70 parts of increment filler, 0.1-5 parts of moisture removing agent, 0.1-5 parts of adhesion accelerator and 0.1-5 parts of curing accelerator. The preparation method comprises the following steps of: preparing the raw materials according to the parts by weight; adding the polyurethane prepolymer and the hydrogenated castor oil intercalated montmorillonite into a double-planet stirring kettle in sequence at the temperature between 50 DEG C and 70 DEG C and mixing and stirring in vacuum for 15-60 minutes; adding the increment filler and mixing and stirring in vacuum for 40-90 minutes; and adding the moisture removing agent, the adhesion accelerator and the curing accelerator in sequence and stirring in vacuum for 20-40 minutes. Compared with the prior art, the sealant provided by the invention has the characteristics of high sagging resistance, difficulty of water absorption, high storage property and low modulus. The preparation method has the characteristics of simple process, easiness in operating and high practicability.
Description
Technical field
The present invention relates to the sealer technical field, particularly relate to imvite modified one-component polyurethane sealant of a kind of THIXCIN intercalation and preparation method thereof.
Background technology
Except that pitch, tar etc. some are inexpensive, the sealer of lower performance, present sealer market also includes gathers sulphur class, silicone and polyurethanes sealer, these gather the market that sulphur class, silicone and polyurethane sealant have occupied most domestic.
Wherein, polyurethane sealant is because characteristic such as its adhesiveproperties is strong, mechanics superior and acid and alkali-resistance, organic solvent-resistant are good is widely used in fields such as automobile assembling, building sealing.Yet, when one-component polyurethane sealant is applied to the facade filleting of buildings, because own wt causes the anti-sag performance poor.Therefore, in order to improve the anti-sag performance of one-component polyurethane sealant, need to adopt rheology modifier.
Rheology modifier of the prior art mainly includes aerosil, organobentonite, hydrogenated castor wet goods.Aerosil, because specific surface area is high, tap density is light, thus need special devices to disperse, and because its particle surface is prone to suction, be difficult in mono-component polyurethane, use.Organic expander profit soil, though have good anti-sag performance, add a certain amount of organobentonite after, be prone to cause the raising of sealer modulus, be difficult to polyurethane sealant is prepared into the product of low modulus, it can not be used widely.THIXCIN, though have good anti-sag performance, because its molecular structure is a polyhydroxy substance; When it is applied to one-component polyurethane sealant, is prone to form gel, thereby influences the outward appearance and the memory property of product; Under hot conditions, its thixotropic property obviously reduces simultaneously.Therefore, rheology modifier used in the prior art is applied in the one-component polyurethane sealant, in the time of can't solving one-component polyurethane sealant well and be applied to the facade filleting of buildings, because own wt, causes the defective of anti-sag performance difference.
Therefore, to deficiency of the prior art, need badly:
(1) provides a kind of and can under different temperature, all have good anti-sag performance, and be difficult for that suction, memory property are good, the imvite modified one-component polyurethane sealant of THIXCIN intercalation of low modulus.
(2) provide that a kind of technology is simple, the preparation method of easy handling, the practical imvite modified one-component polyurethane sealant of THIXCIN intercalation; And the imvite modified one-component polyurethane sealant of THIXCIN intercalation that adopts this preparation method to prepare; Can under different temperature, all have good anti-sag performance, and have and be difficult for that suction, memory property are good, the characteristics of low modulus.
Summary of the invention
One of the object of the invention is to avoid weak point of the prior art and a kind of good anti-sag performance that can under different temperature, all have is provided, and is difficult for that suction, memory property are good, the imvite modified one-component polyurethane sealant of THIXCIN intercalation of low modulus.
Two of the object of the invention be to avoid weak point of the prior art and provide that a kind of technology is simple, the preparation method of easy handling, the practical imvite modified one-component polyurethane sealant of THIXCIN intercalation; And the imvite modified one-component polyurethane sealant of THIXCIN intercalation that adopts this preparation method to prepare; Can under different temperature, all have good anti-sag performance, and have and be difficult for that suction, memory property are good, the characteristics of low modulus.
The object of the invention is realized through following technical scheme:
On the one hand, the invention provides the imvite modified one-component polyurethane sealant of a kind of THIXCIN intercalation, comprise the raw material of following weight part:
100 parts of base polyurethane prepolymer for use as
1～30 part of THIXCIN intercalation polynite
10～70 parts of increment fillers
0.1～5 part of moisture content scavenging agent
0.1～5 part of adhesion promoters
0.1～5 part of curing catalyst.
Preferably, the imvite modified one-component polyurethane sealant of described THIXCIN intercalation comprises the raw material of following weight part:
100 parts of base polyurethane prepolymer for use as
1～20 part of THIXCIN intercalation polynite
10～40 parts of increment fillers
0.1～5 part of moisture content scavenging agent
0.1～5 part of adhesion promoters
0.1～5 part of curing catalyst.
More preferably, the imvite modified one-component polyurethane sealant of described THIXCIN intercalation comprises the raw material of following weight part:
100 parts of base polyurethane prepolymer for use as
20～30 parts of THIXCIN intercalation polynites
40～70 parts of increment fillers
0.1～5 part of moisture content scavenging agent
0.1～5 part of adhesion promoters
0.1～5 part of curing catalyst.
Wherein, Said base polyurethane prepolymer for use as is that end group is the polyethers performed polymer of isocyanic ester; Said end group is that the weight content of isocyanic ester is 1 ~ 5% in the polyethers performed polymer of isocyanic ester; The weight content of softening agent is 20 ~ 60%, and said end group is that the weight-average molecular weight of the polyethers performed polymer of isocyanic ester is 8000 ~ 12000, and the number that contains active isocyanate in the said isocyanic ester unit formula chain is 2 ~ 4.
Wherein, the polynite of said THIXCIN intercalation comprises the raw material of following weight part:
1～20 part of organo montmorillonite
1～30 part of THIXCIN
20 ~ 1000 parts of dry toluenes
3～10 parts of active hydrogen scavenging agents;
The polynite of said THIXCIN intercalation is prepared from following method:
Step 1 with 20 ~ 1000 parts of 1～20 part of raw material organo montmorillonite, 1～30 part of THIXCIN and dry toluenes, is added in the duplicate rows star reaction kettle that the high speed dispersion dish is housed, and is warming up to 80 ~ 120 ℃, refluxing and stirring 2 ~ 3h;
Step 2, decompression vacuum pumping is removed toluene;
Step 3, temperature remain on 110 ~ 120 ℃, and high temperature vacuumizes 3h and removes steam;
Step 4 is cooled to 40 ~ 60 ℃, adds 3～10 parts of active hydrogen scavenging agents, continues to stir 0.5h, goes out the still sealing, promptly gets the polynite of said THIXCIN intercalation.
Wherein, said organo montmorillonite is the ammonium polynite, and the carbon content number of organic ammonium is 5 ~ 20 in the said ammonium polynite; Said active hydrogen scavenging agent is the mixture of organic acid anhydride and quicklime, and contains a kind of in the simple function group isocyanic ester or two kinds.
Wherein, said increment filler be lime carbonate, talcum powder, through the lime carbonate of surface-treated and in the ground silica one or several.
Wherein, said moisture content scavenging agent is to be prone to be hydrolyzed the silane coupling agent or the oxazole alkanes moisture content scavenging agent of reaction; Said adhesion promoters is one or several in gamma-mercaptopropyltriethoxysilane, γ-An Bingjisanjiayangjiguiwan, N-β-aminoethyl-γ-An Bingjisanjiayangjiguiwan, γ-methacryloxypropyl trimethoxy silane and γ-glycidyl ether oxygen base propyl trimethoxy silicane.
Wherein, said curing catalyst is one or several in compound accelerant, dibutyl tin laurate and the modification organotin catalysts of organo-tin compound and alkylamine.
On the other hand, the present invention also provides the preparation method of the imvite modified one-component polyurethane sealant of a kind of THIXCIN intercalation, may further comprise the steps:
Step 1 is prepared raw material by above-mentioned weight part;
Step 2 is under 50 ~ 70 ℃ in temperature, with base polyurethane prepolymer for use as and the polynite of THIXCIN intercalation, adds successively in the duplicate rows star stirring tank of band high speed dispersion dish, and vacuum is mixed stirring 15 ~ 60min;
Step 3 adds the increment filler again, and vacuum is mixed stirring 40 ~ 90min;
Step 4 adds moisture content scavenging agent, adhesion promoters and curing catalyst successively, under vacuum, stirs 20 ~ 40min, obtains the imvite modified one-component polyurethane sealant of THIXCIN intercalation.
Beneficial effect of the present invention: the imvite modified one-component polyurethane sealant of THIXCIN intercalation of the present invention comprises the raw material of following weight part: 100 parts of base polyurethane prepolymer for use as, 1～30 part of THIXCIN intercalation polynite, 10～70 parts of increment fillers, 0.1～5 part of moisture content scavenging agent, 0.1～5 part of adhesion promoters, 0.1～5 part of curing catalyst.The preparation method of the imvite modified one-component polyurethane sealant of THIXCIN intercalation of the present invention may further comprise the steps: step 1, prepare raw material by above-mentioned weight part; Step 2 is under 50 ~ 70 ℃ in temperature, with base polyurethane prepolymer for use as and the polynite of THIXCIN intercalation, adds successively in the duplicate rows star stirring tank of band high speed dispersion dish, and vacuum is mixed stirring 15 ~ 60min; Step 3 adds the increment filler again, and vacuum is mixed stirring 40 ~ 90min; Step 4 adds moisture content scavenging agent, adhesion promoters and curing catalyst successively, under vacuum, stirs 20 ~ 40min, obtains the imvite modified one-component polyurethane sealant of THIXCIN intercalation.Owing to adopt the THIXCIN intercalation polynite of good environmental adaptability in the imvite modified one-component polyurethane sealant of THIXCIN intercalation of the present invention; And according to the composition and the imvite modified one-component polyurethane sealant of the formed THIXCIN intercalation of proportioning of 100 parts of base polyurethane prepolymer for use as, 1～30 part of THIXCIN intercalation polynite, 10～70 parts of increment fillers, 0.1～5 part of moisture content scavenging agent, 0.1～5 part of adhesion promoters, 0.1～5 part of curing catalyst; Compared with prior art; Have and under different temperature, all have good anti-sag performance, and be difficult for that suction, memory property are good, the characteristics of low modulus.And the THIXCIN intercalation polynite of being adopted and the consistency of one-component polyurethane sealant are better, and easy dispersion, sealer modulus raise less.And, the preparation method of the imvite modified one-component polyurethane sealant of this THIXCIN intercalation, it is simple to have technology, easy handling, practical characteristics are convenient to large-area popularizing and popularization on the market.
Embodiment
In conjunction with following examples the present invention is further described:
Need to prove that the sealing glue solidifying condition is 23 ℃ in following examples, relative humidity 50 ﹪ held 3 days are then 50 ℃ of held 5 days.Tensile modulus is pressed method mensuration, the droop test of GB/T13477.8-2002 Test method for building sealants the 8th part stretching cementability and is pressed the extrudability method test of GB/T13477.3-2002 Test method for building sealants the 3rd part use standard utensil mensuration sealing material.
Embodiment 1
The imvite modified one-component polyurethane sealant of a kind of THIXCIN intercalation comprises the raw material of following weight part:
End group is 100 parts of the polyethers performed polymers of isocyanic ester
10 parts of THIXCIN intercalation polynites
70 parts in lime carbonate
1.5 parts of vinyltrimethoxy silanes
1 part of N-β-aminoethyl-γ-An Bingjisanjiayangjiguiwan
1 part of dibutyl tin laurate.
End group in the present embodiment is that the weight content of isocyanic ester is 1% in the polyethers performed polymer of isocyanic ester; The weight content of softening agent is 20%; End group is that the weight-average molecular weight of the polyethers performed polymer of isocyanic ester is 12000, and the number that contains active isocyanate in the isocyanic ester unit formula chain is 2.5.
THIXCIN intercalation polynite in the present embodiment comprises the raw material of following weight part:
20 parts of ammonium polynites
25 parts of THIXCINs
1000 parts of dry toluenes
To 10 parts of Methyl benzenesulfonyl isocyanates;
THIXCIN intercalation polynite in the present embodiment is prepared from following method: step 1; With 1000 parts of 20 parts of raw material ammonium polynites, 25 parts of THIXCINs and dry toluenes; Be added in the duplicate rows star reaction kettle that the high speed dispersion dish is housed, be warming up to 120 ℃, refluxing and stirring 3h; Step 2, decompression vacuum pumping is removed toluene; Step 3, temperature remain on 120 ℃, and high temperature vacuumizes 3h and removes steam; Step 4 is cooled to 60 ℃, adds 10 parts of Methyl benzenesulfonyl isocyanates, continues to stir 0.5h, goes out the still sealing, promptly gets the polynite of THIXCIN intercalation.
The carbon content number of organic ammonium is 5 in the ammonium polynite in the present embodiment.
As required, can also add various additives commonly used in this area in the component of the imvite modified one-component polyurethane sealant of THIXCIN intercalation of the present invention, like various auxiliary agents such as tinting material, skimmers.Tinting material can further be selected carbon black or titanium oxide for use.The weight part of the tinting material that is added can be 0～5 part.
Embodiment 2
The imvite modified one-component polyurethane sealant of a kind of THIXCIN intercalation comprises the raw material of following weight part:
End group is 100 parts of the polyethers performed polymers of isocyanic ester
5 parts of THIXCIN intercalation polynites
70 parts of light calcium carbonates
2 parts in 4A molecular sieve
1 part of γ-glycidyl ether oxygen base propyl trimethoxy silicane
2,1 part of 2-dual-morpholinyl diethyl ether.
End group in the present embodiment is that the weight content of isocyanic ester is 5% in the polyethers performed polymer of isocyanic ester; The weight content of softening agent is 30%; End group is that the weight-average molecular weight of the polyethers performed polymer of isocyanic ester is 8000, and the number that contains active isocyanate in the isocyanic ester unit formula chain is 3.
THIXCIN intercalation polynite in the present embodiment comprises the raw material of following weight part:
1 part of ammonium polynite
5 parts of THIXCINs
20 parts of dry toluenes
3 parts of the compsns of Tetra hydro Phthalic anhydride and quicklime;
THIXCIN intercalation polynite in the present embodiment is prepared from following method: step 1; With 20 parts of 1 part of raw material ammonium polynite, 5 parts of THIXCINs and dry toluenes; Be added in the duplicate rows star reaction kettle that the high speed dispersion dish is housed, be warming up to 80 ℃, refluxing and stirring 3h; Step 2, decompression vacuum pumping is removed toluene; Step 3, temperature remain on 110 ℃, and high temperature vacuumizes 3h and removes steam; Step 4 is cooled to 40 ℃, and 3 parts of the compsns of adding Tetra hydro Phthalic anhydride and quicklime continue to stir 0.5h, go out the still sealing, promptly get the polynite of THIXCIN intercalation.
The carbon content number of organic ammonium is 8 in the ammonium polynite in the present embodiment.
Tetra hydro Phthalic anhydride in the present embodiment and quicklime can mix by arbitrary proportion.
As required, can also add various additives commonly used in this area in the component of the imvite modified one-component polyurethane sealant of THIXCIN intercalation of the present invention, like various auxiliary agents such as tinting material, skimmers.Tinting material can further be selected carbon black or titanium oxide for use.The weight part of the tinting material that is added can be 0～5 part.
Embodiment 3
The imvite modified one-component polyurethane sealant of a kind of THIXCIN intercalation comprises the raw material of following weight part:
End group is 100 parts of the polyethers performed polymers of isocyanic ester
8 parts of THIXCIN intercalation polynites
30 parts of light calcium carbonate and water-ground limestones
1,2 parts of 3-oxazolidine compsns
1 part of γ-glycidyl ether oxygen base propyl trimethoxy silicane
2,1.5 parts of 2-dual-morpholinyl diethyl ethers.
End group in the present embodiment is that the weight content of isocyanic ester is 2.5% in the polyethers performed polymer of isocyanic ester; The weight content of softening agent is 35%; End group is that the weight-average molecular weight of the polyethers performed polymer of isocyanic ester is 10000, and the number that contains active isocyanate in the isocyanic ester unit formula chain is 2.8.
The weight part that is added in the present embodiment is 30 parts of light calcium carbonates and 50 parts of water-ground limestones.
THIXCIN intercalation polynite in the present embodiment comprises the raw material of following weight part:
10 parts of ammonium polynites
18 parts of THIXCINs
200 parts of dry toluenes
To 10 parts of Methyl benzenesulfonyl isocyanates;
THIXCIN intercalation polynite in the present embodiment is prepared from following method: step 1; With 200 parts of 10 parts of raw material organo montmorillonites, 18 parts of THIXCINs and dry toluenes; Be added in the duplicate rows star reaction kettle that the high speed dispersion dish is housed, be warming up to 110 ℃, refluxing and stirring 2h; Step 2, decompression vacuum pumping is removed toluene; Step 3, temperature remain on 115 ℃, and high temperature vacuumizes 3h and removes steam; Step 4 is cooled to 40 ℃, adds 10 parts of Methyl benzenesulfonyl isocyanates, continues to stir 0.5h, goes out the still sealing, promptly gets the polynite of THIXCIN intercalation.
The carbon content number of organic ammonium is 15 in the ammonium polynite in the present embodiment.
As required, can also add various additives commonly used in this area in the component of the imvite modified one-component polyurethane sealant of THIXCIN intercalation of the present invention, like various auxiliary agents such as tinting material, skimmers.Tinting material can further be selected carbon black or titanium oxide for use.The weight part of the tinting material that is added can be 0～5 part.
Embodiment 4
The preparation method of the imvite modified one-component polyurethane sealant of a kind of THIXCIN intercalation may further comprise the steps:
Step 1, the weight part of pressing among the embodiment 1 is prepared raw material;
Step 2 is under 70 ℃ in temperature, is 100 parts of the polyethers performed polymers and 10 parts of THIXCIN intercalation polynites of isocyanic ester with end group, adds successively in the duplicate rows star stirring tank of band high speed dispersion dish, and vacuum is mixed and stirred 30min;
Step 3 adds 70 parts in lime carbonate again, and vacuum is mixed stirring 90min;
Step 4; Add 1 part of 1.5 parts of vinyltrimethoxy silanes, N-β-aminoethyl-1 part of γ-An Bingjisanjiayangjiguiwan and dibutyl tin laurate successively; Under vacuum, stir 30min, obtain the imvite modified one-component polyurethane sealant product A of THIXCIN intercalation.
Simultaneous test 1: repeat above-mentioned steps and carry out one group of blank assay that does not add the polynite of hydrogenation Viscotrol C intercalation, make the one-component polyurethane sealant product B, two kinds of sealer performance of products test result contrast tables such as following table 1:
Table 1 The performance test results contrast table
| Project | The sealer product A | The sealer product B |
| 100% modulus/Mpa | 0.28 | 0.26 |
| Sag (60 ℃)/mm | 2mm | All flow out |
| Sag (23 ℃)/mm | 0 | All flow out |
This shows: the imvite modified one-component polyurethane sealant product A of THIXCIN intercalation prepared in the present embodiment has good thixotropic property.
Embodiment 5
The preparation method of the imvite modified one-component polyurethane sealant of a kind of THIXCIN intercalation may further comprise the steps:
Step 1, the weight part of pressing among the embodiment 2 is prepared raw material;
Step 2 is under 50 ℃ in temperature, is 100 parts of the polyethers performed polymers and 5 parts of THIXCIN intercalation polynites of isocyanic ester with end group, adds successively in the duplicate rows star stirring tank of band high speed dispersion dish, and vacuum is mixed and stirred 30min;
Step 3 adds 70 parts of light calcium carbonates again, and vacuum is mixed stirring 90min;
Step 4; Add 1 part in 2 parts in 4A molecular sieve, γ-glycidyl ether oxygen base propyl trimethoxy silicane and 2 successively; 1 part of 2-dual-morpholinyl diethyl ether stirs 30min under vacuum, obtain the imvite modified one-component polyurethane sealant products C of THIXCIN intercalation.
Simultaneous test 2: repeat above-mentioned steps and carry out one group of blank assay that does not add the polynite of hydrogenation Viscotrol C intercalation, make one-component polyurethane sealant product D, two kinds of sealer performance of products test result contrast tables such as following table 2:
Table 2 The performance test results contrast table
| Project | The sealer products C | Sealer product D |
| 100% modulus/Mpa | 0.48 | 0.45 |
| Sag (60 ℃)/mm | 0mm | All flow out |
| Sag (23 ℃)/mm | 0 | 10 |
This shows: the imvite modified one-component polyurethane sealant products C of THIXCIN intercalation prepared in the present embodiment has good thixotropic property.
Embodiment 6
The preparation method of the imvite modified one-component polyurethane sealant of a kind of THIXCIN intercalation may further comprise the steps:
Step 1, the weight part of pressing among the embodiment 3 is prepared raw material;
Step 2 is under 70 ℃ in temperature, is 100 parts of the polyethers performed polymers and 8 parts of THIXCIN intercalation polynites of isocyanic ester with end group, adds successively in the duplicate rows star stirring tank of band high speed dispersion dish, and vacuum is mixed and stirred 30min;
Step 3 adds 50 parts of 30 parts of light calcium carbonates and water-ground limestones again, and vacuum is mixed stirring 80min;
Step 4; Add 1 successively, 1 part of 2 parts of 3-oxazolidine compsn, γ-glycidyl ether oxygen base propyl trimethoxy silicane and 2,1.5 parts of 2-dual-morpholinyl diethyl ethers; Under vacuum, stir 30min, obtain the imvite modified one-component polyurethane sealant product E of THIXCIN intercalation.
Simultaneous test 3: repeat above-mentioned steps and carry out one group of blank assay that does not add the polynite of hydrogenation Viscotrol C intercalation, make the one-component polyurethane sealant product F, two kinds of sealer performance of products test result contrast tables such as following table 3:
Table 3 The performance test results contrast table
| Project | The sealer product E | The sealer product F |
| 100% modulus/Mpa | 0.34 | 0.33 |
| Sag (60 ℃)/mm | 0mm | All flow out |
| Sag (23 ℃)/mm | 0 | 17 |
This shows: the imvite modified one-component polyurethane sealant product E of THIXCIN intercalation prepared in the present embodiment has good thixotropic property.
Should be noted that at last; Above embodiment is only in order to explain technical scheme of the present invention; But not to the restriction of protection domain of the present invention, although with reference to preferred embodiment the present invention has been done explanation at length, those of ordinary skill in the art is to be understood that; Can make amendment or be equal to replacement technical scheme of the present invention, and not break away from the essence and the scope of technical scheme of the present invention.
Claims (8)
1. the imvite modified one-component polyurethane sealant of THIXCIN intercalation is characterized in that, comprises the raw material of following weight part:
100 parts of base polyurethane prepolymer for use as
1～30 part of THIXCIN intercalation polynite
10～70 parts of increment fillers
0.1～5 part of moisture content scavenging agent
0.1～5 part of adhesion promoters
0.1～5 part of curing catalyst;
The polynite of said THIXCIN intercalation comprises the raw material of following weight part:
1～20 part of organo montmorillonite
1～30 part of THIXCIN
20 ~ 1000 parts of dry toluenes
3～10 parts of active hydrogen scavenging agents;
Wherein, said organo montmorillonite is the ammonium polynite, and the carbon content number of organic ammonium is 5 ~ 20 in the said ammonium polynite; Said active hydrogen scavenging agent is the compsn of organic acid anhydride and quicklime, and contains a kind of in the simple function group isocyanic ester or two kinds;
The polynite of said THIXCIN intercalation is prepared from following method:
Step 1 with 20 ~ 1000 parts of 1～20 part of raw material organo montmorillonite, 1～30 part of THIXCIN and dry toluenes, is added in the duplicate rows star reaction kettle that the high speed dispersion dish is housed, and is warming up to 80 ~ 120 ℃, refluxing and stirring 2 ~ 3h;
Step 2, decompression vacuum pumping is removed toluene;
Step 3, temperature remain on 110 ~ 120 ℃, and high temperature vacuumizes 3h and removes steam;
Step 4 is cooled to 40 ~ 60 ℃, adds 3～10 parts of active hydrogen scavenging agents, continues to stir 0.5h, goes out the still sealing, promptly gets the polynite of said THIXCIN intercalation.
2. the imvite modified one-component polyurethane sealant of THIXCIN intercalation according to claim 1 is characterized in that, comprises the raw material of following weight part:
100 parts of base polyurethane prepolymer for use as
1～20 part of THIXCIN intercalation polynite
10～40 parts of increment fillers
0.1～5 part of moisture content scavenging agent
0.1～5 part of adhesion promoters
0.1～5 part of curing catalyst.
3. the imvite modified one-component polyurethane sealant of THIXCIN intercalation according to claim 1 is characterized in that, comprises the raw material of following weight part:
100 parts of base polyurethane prepolymer for use as
20～30 parts of THIXCIN intercalation polynites
40～70 parts of increment fillers
0.1～5 part of moisture content scavenging agent
0.1～5 part of adhesion promoters
0.1～5 part of curing catalyst.
4. the imvite modified one-component polyurethane sealant of THIXCIN intercalation according to claim 1; It is characterized in that: said base polyurethane prepolymer for use as is that end group is the polyethers performed polymer of isocyanic ester; Said end group is that the weight content of isocyanic ester is 1 ~ 5% in the polyethers performed polymer of isocyanic ester; The weight content of softening agent is 20 ~ 60%; Said end group is that the weight-average molecular weight of the polyethers performed polymer of isocyanic ester is 8000 ~ 12000, and the number that contains active isocyanate in the said isocyanic ester unit formula chain is 2 ~ 4.
5. the imvite modified one-component polyurethane sealant of THIXCIN intercalation according to claim 1 is characterized in that: said increment filler is lime carbonate, talcum powder, through the lime carbonate of surface-treated and in the ground silica one or several.
6. the imvite modified one-component polyurethane sealant of THIXCIN intercalation according to claim 1 is characterized in that: said moisture content scavenging agent is to be prone to be hydrolyzed the silane coupling agent or the oxazole alkanes moisture content scavenging agent of reaction; Said adhesion promoters is one or several in gamma-mercaptopropyltriethoxysilane, γ-An Bingjisanjiayangjiguiwan, N-β-aminoethyl-γ-An Bingjisanjiayangjiguiwan, γ-methacryloxypropyl trimethoxy silane and γ-glycidyl ether oxygen base propyl trimethoxy silicane.
7. the imvite modified one-component polyurethane sealant of THIXCIN intercalation according to claim 1; It is characterized in that said curing catalyst is one or several in compound accelerant, dibutyl tin laurate and the modification organotin catalysts of organo-tin compound and alkylamine.
8. the preparation method of the imvite modified one-component polyurethane sealant of each described a kind of THIXCIN intercalation in the claim 1 to 7 is characterized in that, may further comprise the steps:
Step 1 is prepared raw material by above-mentioned weight part;
Step 2 is under 50 ~ 70 ℃ in temperature, with base polyurethane prepolymer for use as and the polynite of THIXCIN intercalation, adds successively in the duplicate rows star stirring tank of band high speed dispersion dish, and vacuum is mixed stirring 15 ~ 60min;
Step 3 adds the increment filler again, and vacuum is mixed stirring 40 ~ 90min;
Step 4 adds moisture content scavenging agent, adhesion promoters and curing catalyst successively, under vacuum, stirs 20 ~ 40min, obtains the imvite modified one-component polyurethane sealant of THIXCIN intercalation.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106094589A CN102127387B (en) | 2010-12-28 | 2010-12-28 | Hydrogenated castor oil intercalated montmorillonite modified single-component polyurethane sealant and preparation method thereof |
Applications Claiming Priority (1)
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| CN2010106094589A CN102127387B (en) | 2010-12-28 | 2010-12-28 | Hydrogenated castor oil intercalated montmorillonite modified single-component polyurethane sealant and preparation method thereof |
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| CN114773951A (en) * | 2022-04-24 | 2022-07-22 | 珠海市威旗防腐科技股份有限公司 | Solvent-free elastomer wear-resistant polymer coating and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020007003A1 (en) * | 2000-05-02 | 2002-01-17 | Merz Peter W. | Thixotropic agent |
| CN101402845A (en) * | 2008-11-11 | 2009-04-08 | 北京市化学工业研究院 | Process for producing flame-proof fluid sealant for construction |
| CN101613587A (en) * | 2008-06-24 | 2009-12-30 | 杨生凤 | Polyurethane sealant |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020007003A1 (en) * | 2000-05-02 | 2002-01-17 | Merz Peter W. | Thixotropic agent |
| CN101613587A (en) * | 2008-06-24 | 2009-12-30 | 杨生凤 | Polyurethane sealant |
| CN101402845A (en) * | 2008-11-11 | 2009-04-08 | 北京市化学工业研究院 | Process for producing flame-proof fluid sealant for construction |
Non-Patent Citations (1)
| Title |
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| 李桂妃 等."低模量高触变单组份聚氨酯密封胶的研制及应用".《中国建筑防水》.2010,(第14期),第20-23页. |
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Address after: 523000 Guangdong city of Dongguan province Guangdong Town Village nine Pu Saida sealing adhesive Co. Ltd Patentee after: GUANGDONG PUSTAR SEALING ADHESIVE CO., LTD. Address before: 523000 Guangdong city of Dongguan Province town third Jinlong Industrial Zone Dongguan pustar sealing adhesive Co. Ltd Patentee before: Dongguan Pustar Adhesives & Sealants Co., Ltd. |