CN105733489A - Modified polyurethane sealant - Google Patents
Modified polyurethane sealant Download PDFInfo
- Publication number
- CN105733489A CN105733489A CN201610142974.2A CN201610142974A CN105733489A CN 105733489 A CN105733489 A CN 105733489A CN 201610142974 A CN201610142974 A CN 201610142974A CN 105733489 A CN105733489 A CN 105733489A
- Authority
- CN
- China
- Prior art keywords
- parts
- sealant
- polyurethane
- modified polyurethane
- epoxy resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
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- 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
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
-
- 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
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- 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
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
- C09K2003/1034—Materials or components characterised by specific properties
- C09K2003/1078—Fire-resistant, heat-resistant materials
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention relates to a modified polyurethane sealant which comprises, by weight, 20-60 parts of polyurethane, 10-15 parts of isocyanate, 2-5 parts of diamond, 1-2 parts of vinyl trimethyl ethyl ketoxime silane, 1-2 parts of asphalt, 1-3 parts of coal ash, 5-8 parts of talcum powder, 5-10 parts of phthalic acid alkyl ester, 1-1.5 parts of triphenolphosphine, 5-10 parts of butyl glycidyl ether, 1-3 parts of magnesium hydrogen carbonate, 0.5-1 part of tea polyphenol, 5-10 parts of polybutylene, 1-2 parts of stearic acid, 0.5-1 part of methyl silicone oil, 5-8 parts of epoxy resin, 1-2 parts of accelerant and 10-20 parts of organic solvent. The sealant of a formula has high resistance to heat and oil, and good performance can still be maintained in high-temperature high-humidity environment.
Description
The present invention is application number: 2015100867406, the applying date: 2015-02-25, denomination of invention:
Plant the divisional application of modified polyurethane sealant.
Technical field
The invention belongs to fluid sealant field, be specifically related to the polyurethane sealant of a kind of modification.
Background technology
Fluid sealant is that one is applied between two base materials or two components, and interface is risen bonding and caulking sealing
Multi-functional adhering and sealing material, have be difficult to trickling, unbodied, the spy of deformational displacement stress can be born
Point.Fluid sealant, generally with the dope such as rubber or resin as major ingredient, coordinates the inert filler such as white carbon black, titanium dioxide,
Add plasticizer, firming agent, accelerator etc. to make.Along with social economy and the development of science, close
The sealing application in fields such as architectural engineering, transportation, telecommunications is more and more extensive.
Polyurethane sealant is as in the world three big high-performance elastic fluid sealant (silicone sealant, polysulfide
One of class fluid sealant, polyurethanes fluid sealant), with excellent performance, obtain rapid development with extensive
Application.Polyurethane sealant is mainly had very by what polyisocyanates and polyether polyol were reacted and generated
Many excellent performances are such as: composition changes many, structure and multiple base material greatly and is had relatively by property regulation scope
Good cementability；There is excellent heat-resisting, oil resistant and chemicals-resistant etc.；Certainly, polyurethane sealant is also
There are some shortcomings, such as: amino-formate bond the most easily decomposes, are therefore not suitable at high temperature using,
Under hot and humid environment, solidification easily produces bubble and crackle etc..
Summary of the invention
The problem and shortage existed for polyurethane sealant of the prior art, the present invention provides a kind of performance
Excellent modified polyurethane sealant, and preparation method thereof.
Technical scheme is as follows: the polyurethane sealant of a kind of modification, it is characterised in that with weight
Part meter includes: polyurethane 20～60 parts, isocyanates 10-15 part, marble 2-5 part, vinyl three fourth
Ketoximinosilanes 1-2 part, Colophonium 1-2 part, flyash 1-3 part, Pulvis Talci 5-8 part, phthalic acid
Arrcostab 5-10 part, triphenylphosphine 1-1.5 part, butyl glycidyl ether 5-10 part, magnesium bicarbonate 1-3
Part, tea polyphenols 0.5-1 part, polybutene 5-10 part, stearic acid 1-2 part, methyl-silicone oil 0.5-1 part, phenol
Formaldehyde epoxy resin 5-8 part, diphenylguanidine 1-2 part, ethanol 10～20 parts.
The application in high temperature environments of above-mentioned fluid sealant..
The present invention can use the preparation method of fluid sealant commonly used in the prior art to prepare.As first by above-mentioned
Mass parts is by polyurethane, isocyanates, vinyl tributyl ketoximyl silane, Colophonium, O-phthalic dialkylaminobenzoic acid
Ester, triphenylphosphine, butyl glycidyl ether, tea polyphenols part, polybutene, stearic acid, methyl-silicone oil and
Epoxy resin carries out high temperature dehydration 3-5h, is subsequently adding remaining raw material, and temperature is less than 50 DEG C, stirs at planet
Mix stirring 2-5h in still, obtain after cooling.
The fluid sealant of inventive formulation has preferable thermostability, oil resistivity, and is suitable for more than 120 DEG C
At a temperature of use, still can keep good performance under hot and humid environment.
Detailed description of the invention
Embodiment 1
Preparation following material in parts by weight: polyurethane 60 parts, isocyanates 10 parts, 2 parts of marble,
Vinyl tributyl ketoximyl silane 1 part, Colophonium 1 part, 1 part of flyash, Pulvis Talci 6 parts, O-phthalic
Acid alkyl ester 5 parts, triphenylphosphine 1 part, butyl glycidyl ether 10 parts, magnesium bicarbonate 1 part, tea polyphenols
1 part, polybutene 5 parts, stearic acid 1 part, methyl-silicone oil 1 part, novolac epoxy resin 5 parts, diphenylguanidine 1
Part, ethanol 15 parts.As first pressed above-mentioned mass parts by polyurethane, isocyanates, vinyl tributanoximo silicon
Alkane, Colophonium, alkyl phthalates, triphenylphosphine, butyl glycidyl ether, tea polyphenols part, poly-fourth
Alkene, stearic acid, methyl-silicone oil and novolac epoxy resin carry out high temperature dehydration 3h, are subsequently adding remaining raw material,
At 40 DEG C, planet stirred tank stirs 3h, obtains after cooling.
Embodiment 2
Preparation following material in parts by weight: polyurethane 40 parts, isocyanates 15 parts, 4 parts of marble,
Vinyl tributyl ketoximyl silane 2 parts, Colophonium 1 part, 2 parts of flyash, Pulvis Talci 8 parts, O-phthalic
Acid alkyl ester 10 parts, triphenylphosphine 1 part, butyl glycidyl ether 5 parts, magnesium bicarbonate 2 parts, tea polyphenols
1 part, polybutene 10 parts, stearic acid 1 part, methyl-silicone oil 0.5 part, novolac epoxy resin 5 parts, hexichol
Guanidine 2 parts, ethanol 20 parts.As first pressed above-mentioned mass parts by polyurethane, isocyanates, vinyl three diacetylmonoxime
Base silane, Colophonium, alkyl phthalates, triphenylphosphine, butyl glycidyl ether, tea polyphenols part,
Polybutene, stearic acid, methyl-silicone oil and novolac epoxy resin carry out high temperature dehydration 3h, are subsequently adding remaining
Raw material, at 45 DEG C, stirs 5h in planet stirred tank, obtains after cooling.
The product of embodiment 1-2 gained is carried out at 150 DEG C performance test, and result is as follows:
The properties of product test of table 1 embodiment 1-2
| Embodiment 1 | Embodiment 2 | |
| Shear strength/MPa | 3.0 | 2.8 |
| Elongation at break/% | 480 | 450 |
| Hot strength/MPa | 2.9 | 2.6 |
| Pressure-resistant stopping property/bar | 0.4 | 0.5 |
When result from upper table is it can be seen that the fluid sealant of present invention offer at high temperature uses, have good
Good shear strength, elongation at break, hot strength, pressure-resistant stopping property is high, and performance is compared to existing technology
Fluid sealant product is more excellent.
It is understood that the principle that is intended to be merely illustrative of the present of embodiment of above and the example that uses
Property embodiment, but the invention is not limited in this.For those skilled in the art,
Without departing from the spirit and substance in the present invention, various modification and improvement can be made, these modification
It is also considered as protection scope of the present invention with improvement.
Claims (2)
1. a modified polyurethane sealant, it is characterised in that include in parts by weight: polyurethane 20～
60 parts, isocyanates 10-15 part, marble 2-5 part, vinyl tributyl ketoximyl silane 1-2 part, drip
Blue or green 1-2 part, flyash 1-3 part, Pulvis Talci 5-8 part, alkyl phthalates 5-10 part, triphenyl
Phosphine 1-1.5 part, butyl glycidyl ether 5-10 part, magnesium bicarbonate 1-3 part, tea polyphenols 0.5-1 part are poly-
Butylene 5-10 part, stearic acid 1-2 part, methyl-silicone oil 0.5-1 part, novolac epoxy resin 5-8 part, hexichol
Guanidine 1-2 part, ethanol 10～20 parts.
Fluid sealant the most according to claim 1 application in high temperature environments.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610142974.2A CN105733489A (en) | 2015-02-25 | 2015-02-25 | Modified polyurethane sealant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610142974.2A CN105733489A (en) | 2015-02-25 | 2015-02-25 | Modified polyurethane sealant |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510086740.6A Division CN104629671B (en) | 2015-02-25 | 2015-02-25 | A kind of modified polyurethane sealant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105733489A true CN105733489A (en) | 2016-07-06 |
Family
ID=56250457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610142974.2A Withdrawn CN105733489A (en) | 2015-02-25 | 2015-02-25 | Modified polyurethane sealant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105733489A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103923593A (en) * | 2014-04-16 | 2014-07-16 | 杭州之江有机硅化工有限公司 | One-component silane-modified polyurethane sealant and preparation method thereof |
-
2015
- 2015-02-25 CN CN201610142974.2A patent/CN105733489A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103923593A (en) * | 2014-04-16 | 2014-07-16 | 杭州之江有机硅化工有限公司 | One-component silane-modified polyurethane sealant and preparation method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20160706 |