CN110527475A - A kind of sprayable sag resistance type silane modified polyether seal glue and preparation method thereof - Google Patents
A kind of sprayable sag resistance type silane modified polyether seal glue and preparation method thereof Download PDFInfo
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- CN110527475A CN110527475A CN201910918485.5A CN201910918485A CN110527475A CN 110527475 A CN110527475 A CN 110527475A CN 201910918485 A CN201910918485 A CN 201910918485A CN 110527475 A CN110527475 A CN 110527475A
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- sprayable
- modified polyether
- silane modified
- resistance type
- sag resistance
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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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
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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
- C09J171/00—Adhesives based on polyethers obtained by reactions forming an ether link in the main chain; Adhesives based on derivatives of such polymers
-
- 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
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- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
Abstract
The invention discloses a kind of sprayable sag resistance type silane modified polyether seal glues and preparation method thereof.This sprayable sag resistance type silane modified polyether seal glue includes the component of following mass parts: 60~100 parts of silane-terminated polyethers, 30~60 parts of reactive diluents, 40~60 parts of plasticizer, 120~200 parts of fillers, 0.1~16 part of pigment, 0.5~5 part of ultraviolet absorbing agent, 0.5~5 part of light stabilizer, 1~12 part of thixotropic agent, 1~10 part of deicer, 1~10 part of coupling agent, 0.1~5 part of catalyst；The reactive diluent is silane modified polyether.The preparation method of this sealant is also disclosed simultaneously.Silane modified polyether seal glue of the invention has the advantages of conventional urethane glue and organic silica gel concurrently, it is provided simultaneously with fabulous sprayable property and high sagging resistance, and there is high bond strength, and meet efficient spraying application ability and resistance to deformation shaping aesthetics, it is widely used.
Description
Technical field
The present invention relates to field of adhesive technology, seal more particularly to a kind of sprayable sag resistance type silane modified polyether
Glue and preparation method thereof.
Background technique
Sealant is that one kind is deformed with sealing surface shape, has the sealing material of certain caking property, it is for filling structure
Shape gap, the adhesive to play sealing function have the effects that anti-leak, waterproof, vibration proof and sound insulation, heat-insulated.In recent years machine
The development of the every profession and trades such as vehicle, building interior trim decoration, industry manufacture, it is also higher and higher to the performance requirement of sealant, including can spray
Painting, resistance to deformation, high-modulus, adhesion strength height, environmental protection, high construction efficiency simplicity etc..
Polyurethane sealant and silicone adhesive are the major products in sealant field.Traditional polyurethane sealant contains trip
Free isocyanate and organic solvent, low temperature application performance is poor, and hot setting is then also easy to produce bubble.And common silicone adhesive smell weight, no
It can cover with paint, lacquer, colour wash, etc., and be also easy to produce oily dialysis pollution concrete, stone material and other jewelrys.
The sprayable property of sealant and sagging resistance be it is conflicting, when with sprayable performance, need to reduce it
Viscosity, it is common practice that solvent or plasticizer etc. is added.However, sealant is added after solvent or plasticizer and will lead to whole close
The sagging resistance of sealing is deteriorated, and generates deformation to a certain degree so as to cause sealant and even trickles, and intensity and modulus are all corresponding
It is lower.The characteristics such as viscosity, thixotropy, consistency due to sealant will affect the sprayable property and sagging resistance of product, and can
Sprayability and sagging resistance are often two different adjustment directions, it is difficult to be balanced, so that the formula design of sealant is very tired
Difficulty, and also need to provide high-adhesive-strength or high-modulus.So existing sealant product, including polyurethane adhesive, silicone adhesive and its
His silane modified polyether seal glue, can't usually have both sprayable property and high sagging resistance, can not also meet high bonding simultaneously
The performance requirement of intensity and high-modulus.
Summary of the invention
In order to overcome in the prior art, sealant cannot have both sprayable property and high sagging resistance, can not also meet simultaneously
The problem of high-adhesive-strength and high-modulus, it is silane-modified poly- that one of the objects of the present invention is to provide a kind of sprayable sag resistance types
Ether sealant, the second object of the present invention are to provide the preparation side of this sprayable sag resistance type silane modified polyether seal glue
Method.
In order to achieve the above purpose, the technical solution used in the present invention is:
The present invention provides a kind of sprayable sag resistance type silane modified polyether seal glues.
A kind of sprayable sag resistance type silane modified polyether seal glue, the component including following mass parts: 60~100 parts of silicon
Alkane end capped polyether, 30~60 parts of reactive diluents, 40~60 parts of plasticizer, 120~200 parts of fillers, 0.1~16 part of pigment,
0.5~5 part of ultraviolet absorbing agent, 0.5~5 part of light stabilizer, 1~12 part of thixotropic agent, 1~10 part of deicer, 1~10 part of coupling
Agent, 0.1~5 part of catalyst；Wherein, reactive diluent is silane modified polyether.
Preferably, a kind of sprayable sag resistance type silane modified polyether seal glue, the component including following mass parts: 74~
88 parts of silane-terminated polyethers, 40~57 parts of reactive diluents, 51~59 parts of plasticizer, 191~196 parts of fillers, 13.6~15
Part pigment, 1.3~1.5 parts of ultraviolet absorbing agents, 1.1~2.1 parts of light stabilizers, 2.2~4.1 parts of thixotropic agent, 3~3.5 parts remove
Aqua, 2.8~4 parts of coupling agents, 1~2.4 part of catalyst.
Preferably, in this sprayable sag resistance type silane modified polyether seal glue, silane-terminated polyether is selected from monosilane
At least one of base end capped polyether, dimethoxysilane and triethoxysilane mixing end capped polyether；It is further preferred that silicon
Alkane end capped polyether is selected from least one of S303H, SAX350, SAX400, SAX750,12000DS, 30000T；Further
Preferably, silane-terminated polyether is selected from least one of S303H, SAX750,12000DS.
Preferably, in this sprayable sag resistance type silane modified polyether seal glue, reactive diluent is by below
Component be made: the polyethers of 4~14 mass parts, the modifying agent of 4~10 mass parts, 0.3~3 mass parts end-capping reagent；It is further excellent
Choosing, reactive diluent is made by component below: the polyethers of 10~13 mass parts, the modifying agent of 4~6 mass parts, 0.4
The end-capping reagent of~0.6 mass parts.
Preferably, in the preparation component of this reactive diluent, modifying agent is isocyanato silanes；Further preferably
, modifying agent in isocyanate group hydroxypropyl methyl dimethoxysilane, isocyanate group propyl-triethoxysilicane extremely
Few one kind.
Preferably, in the preparation component of this reactive diluent, end-capping reagent is amino-alkyl silicane；It is further preferred that
End-capping reagent is selected from aminopropyl triethoxysilane, N- β-(aminoethyl)-γ-aminopropyltriethoxy dimethoxysilane, N- (β-ammonia second
Base)-gamma-aminopropyl-triethoxy-silane, at least one of γ-aminopropyltriethoxy diethoxy silane.
Preferably, in this reactive diluent, polyethers selects the polyethers of number-average molecular weight 300~2000；It is further excellent
Choosing, polyethers selects the polyethers of number-average molecular weight 400~1200.
Preferably, in this sprayable sag resistance type silane modified polyether seal glue, the preparation of above-mentioned reactive diluent
Method includes the following steps: to mix polyethers with modifying agent, is warming up to 70 DEG C~85 DEG C, reacts 0.5h~2h；It is cooled to 50 DEG C
Hereinafter, end-capping reagent is added, 20min~40min is reacted, reactive diluent is obtained；It is further preferred that reactive diluent
Preparation method includes the following steps: to mix polyethers with modifying agent, is warming up to 75 DEG C~80 DEG C, reacts 0.8h~1.2h；Cooling
To 20 DEG C~48 DEG C, end-capping reagent is added, reacts 25min~35min, obtains reactive diluent.
Preferably, viscosity of this reactive diluent at 25 DEG C is 0.3Pas~3Pas；It is further preferred that
Viscosity of this reactive diluent at 25 DEG C is 0.5Pas~2Pas.
Preferably, in this sprayable sag resistance type silane modified polyether seal glue, plasticizer is selected from phthalic acid ester
At least one of class plasticizer, fatty acid ester plasticiser, phosphate plasticizer, epoxy ester series plasticizer；It is further excellent
Choosing, plasticizer is phthalic ester plasticizer；Still further preferably, plasticizer be selected from dibutyl phthalate,
At least one of dioctyl phthalate, diisononyl phthalate, diisooctyl phthalate；It is further excellent
Choosing, plasticizer is selected from least one of diisononyl phthalate, diisooctyl phthalate.
Preferably, in this sprayable sag resistance type silane modified polyether seal glue, filler be selected from calcium carbonate, calcium silicates,
At least one of diatomite, kaolin, montmorillonite, talcum powder；It is further preferred that filler is in calcium carbonate, talcum powder
At least one.
Preferably, in this sprayable sag resistance type silane modified polyether seal glue, pigment be selected from carbon black, titanium dioxide,
At least one of iron oxide.
Preferably, in this sprayable sag resistance type silane modified polyether seal glue, ultraviolet absorbing agent is selected from benzo three
Azole ultraviolet absorbing agent, salicylate ultraviolet absorbent, benzophenone class ultraviolet absorbing agent, group-substituted acrylonitrile ultraviolet light
At least one of absorbent, triazine-based ultraviolet absorbent；It is further preferred that ultraviolet absorbing agent is that benzotriazole is purple
Ultraviolet absorbers；Still further preferably, ultraviolet absorbing agent is selected from UV-326, UV-327, UV-328, UV-329, UV-5411
At least one of；Still more preferably, ultraviolet absorbing agent is selected from least one of UV-326, UV-328, UV-329.
Preferably, in this sprayable sag resistance type silane modified polyether seal glue, light stabilizer is that hindered amines light is steady
Determine agent；It is further preferred that light stabilizer in UV-292, UV-622, UV-770, UV-783, UV-791, UV-944 extremely
Few one kind；Still further preferably, light stabilizer is selected from least one of UV-292, UV-622, UV-770.
Preferably, in this sprayable sag resistance type silane modified polyether seal glue, thixotropic agent is selected from polyamide wax, hydrogenation
At least one of castor oil, fumed silica, organobentonite；It is further preferred that thixotropic agent is polyamide wax, it is optional
With polyamide wax Crayvallac SL.
Preferably, in this sprayable sag resistance type silane modified polyether seal glue, deicer is silane deicer；Into one
Step is preferred, and deicer is in vinyltrimethoxysilane, vinyltriethoxysilane, vinyl dimethoxysilane
It is at least one；Still further preferably, deicer is vinyltrimethoxysilane, can be selected from least one of A-171, Z6300.
Preferably, in this sprayable sag resistance type silane modified polyether seal glue, coupling agent is silane coupling agent；Into one
Step is preferred, and coupling agent is selected from γ-aminopropyltrimethoxysilane, gamma-aminopropyl-triethoxy-silane, N- (β-aminoethyl)-
γ-aminopropyltriethoxy dimethoxysilane, N- (β-aminoethyl)-γ-aminopropyltrimethoxysilane, N- (β-aminoethyl)-γ-
At least one of aminopropyl triethoxysilane；Still further preferably, coupling agent is selected from N- (β-aminoethyl)-γ-ammonia third
At least one of ylmethyl dimethoxysilane, N- (β-aminoethyl)-γ-aminopropyltrimethoxysilane, such as can be selected from A-
1120, at least one of KBM-602.
Preferably, in this sprayable sag resistance type silane modified polyether seal glue, catalyst is organic tin catalyst；
It is further preferred that catalyst is selected from dibutyl tin dilaurate, tin dilaurate dioctyl tin, two neodecanoic acid stannous methides, two
At least one of acetic acid dibutyl tin, stannous octoate, chelating tin；Still further preferably, catalyst is chelating tin catalyst,
It can be selected from least one of U-220H (bis- (acetopyruvic acid) dibutyl tins), KRA-1.
The present invention also provides the preparation methods of above-mentioned this sprayable sag resistance type silane modified polyether seal glue.
A kind of preparation method of sprayable sag resistance type silane modified polyether seal glue, comprising the following steps:
1) by silane-terminated polyether, reactive diluent, plasticizer, filler, pigment, ultraviolet absorbing agent, light stabilizer
Stirred tank is added with thixotropic agent, stirs under vacuum, is heated to 100 DEG C~120 DEG C, obtains dry creme；
2) dry creme is cooled to 50 DEG C hereinafter, deicer, coupling agent and catalyst is added, mixing, obtaining can
Spray sag resistance type silane modified polyether seal glue.
Preferably, in the preparation method step 1) of this sprayable sag resistance type silane modified polyether seal glue, stirring
Vacuum degree≤- 0.09MPa.
Preferably, it in the preparation method step 1) of this sprayable sag resistance type silane modified polyether seal glue, is heated to
100 DEG C~120 DEG C need to maintain 2h~4h.
Preferably, it in the preparation method step 2) of this sprayable sag resistance type silane modified polyether seal glue, will dry
Creme is cooled to 20 DEG C~48 DEG C.
Preferably, in the preparation method step 2) of this sprayable sag resistance type silane modified polyether seal glue, mixing is stirred
The time mixed is 15min~30min.
The beneficial effects of the present invention are:
Sprayable sag resistance type silane modified polyether seal glue prepared by the present invention has conventional urethane glue and organosilicon concurrently
The advantages of glue, fixing intensity is high, and good seal performance, construction is simple, adhesive force is strong, and appearance looks elegant, surface drying time is short, can be instantaneous
Positioning has high resiliency, improves the anti-seismic performance of sealing element, is not necessarily to silane coupling agent, assembly technology is simple, reduces process, adds
Fast speed of production, reduces costs.Sealant product of the invention improves the heat-resisting, cold-resistant of material, hydrophobic moisture resistance, resistance to
Mill and electrical insulating property, and there is excellent anti-ultraviolet function.
Present invention introduces self-control reactive diluents to replace conventional solvent oil, with other silane modified polyether polymer phase knots
It closes, system viscosity can be reduced, also assist in curing reaction, improve crosslink density, more fundamentally prevent conventional solvent oil and add
Entered to often have oily dialysis.Again by the formula design of the reinforcement of thixotropic agent and filler etc., it is extrudability simultaneously to reach height
Have " zero " sag, can just be provided simultaneously with fabulous sprayable property and high non-deformability, and there is high bond strength, it is full
The efficient spraying application ability of foot and resistance to deformation shaping aesthetics, provide high-quality performance experience and higher economic benefit.
Sealant product purpose of the invention is extensive, can meet each row such as locomotive, building interior trim decoration, industry manufacture instantly
The industry performance requirement higher and higher to sealant product, and the application and high-efficient homework demand of multiplicity.
Specific embodiment
The contents of the present invention are described in further detail below by way of specific embodiment.In embodiment and comparative example
Raw material, reagent or device used unless otherwise specified, can be obtained from routine business approach.Such as the production of silane-terminated polyether
Japan Kaneka can be selected in producer or domestic auspicious ocean is safe and sound.Unless stated otherwise, test or test method are this field
Conventional method.
Embodiment 1
The sprayable sag resistance type silane modified polyether seal glue composition of this example is shown in Table 1.
The sprayable sag resistance type silane modified polyether seal glue composition of 1 embodiment of table 1
| Component | Raw material | Mass parts |
| Silane-terminated polyether | Silicyl end capped polyether S303H | 88 |
| Reactive diluent | Silane modified polyether | 57 |
| Plasticizer | Diisononyl phthalate | 51 |
| Filler | Calcium carbonate | 191 |
| Pigment | Titanium dioxide | 14 |
| Thixotropic agent | Polyamide wax Crayvallac SL | 4.1 |
| Ultraviolet absorbing agent | UV-326 | 1.5 |
| Light stabilizer | UV-622 | 1.1 |
| Deicer | Silane deicer A-171 | 3.5 |
| Coupling agent | Silane coupling A -1120 | 4.0 |
| Catalyst | Chelate tin catalyst U-220H | 2.3 |
The preparation method of this example reactive diluent includes the following steps: the polyethers of 12 mass fraction average molecular weights 1000
It is mixed with 5 mass parts isocyanate group hydroxypropyl methyl dimethoxysilanes, is warming up to 76 DEG C, react 1h；45 DEG C are cooled to, is added
0.5 mass parts aminopropyl triethoxysilane reacts 30min, will be isocyanate-terminated, obtains silane modified polyether reactivity
Diluent, viscosity are 1.2Pas (25 DEG C).
The preparation method of the sprayable sag resistance type silane modified polyether seal glue of embodiment 1, comprising the following steps:
1) it forms according to the ratio, by silane-terminated polyether, reactive diluent, plasticizer, filler, pigment, ultraviolet radiation absorption
Vacuum double-shaft stirring kettle is added in agent, light stabilizer and thixotropic agent, is dispersed with stirring uniformly, vacuumizes≤- 0.09MPa, be heated to 110
DEG C, it maintains 3 hours, obtains dry creme；
2) dry creme is cooled to 45 DEG C, deicer, coupling agent and catalyst is added, be mixed 20 minutes, obtain
Fine and smooth silane modified polyether seal glue product.
Embodiment 2
The sprayable sag resistance type silane modified polyether seal glue composition of this example is shown in Table 2.
The sprayable sag resistance type silane modified polyether seal glue composition of 2 embodiment of table 2
| Component | Raw material | Mass parts |
| Silane-terminated polyether | Silicyl end capped polyether SAX750 | 74 |
| Reactive diluent | Silane modified polyether | 40 |
| Plasticizer | Diisooctyl phthalate | 59 |
| Filler | Calcium carbonate | 196 |
| Pigment | Titanium dioxide | 15 |
| Thixotropic agent | Polyamide wax Crayvallac SL | 2.2 |
| Ultraviolet absorbing agent | UV-329 | 1.3 |
| Light stabilizer | UV-292 | 2.1 |
| Deicer | Silane deicer Z6300 | 3.0 |
| Coupling agent | Silane coupling agent KBM-602 | 2.8 |
| Catalyst | Chelate tin catalyst U-220H | 2.4 |
The reactive diluent of embodiment 2 is same as Example 1, the sprayable sag resistance type silane modified polyether of embodiment 2
The preparation method of sealant is identical as embodiment 1.
Embodiment 3
The sprayable sag resistance type silane modified polyether seal glue composition of this example is shown in Table 3.
The sprayable sag resistance type silane modified polyether seal glue composition of 3 embodiment of table 3
The reactive diluent of embodiment 3 is same as Example 1, the sprayable sag resistance type silane modified polyether of embodiment 3
The preparation method of sealant is identical as embodiment 1.
Comparative example 1
The sag resistance type silane modified polyether seal glue composition of this example is shown in Table 4.
4 comparative example of table, 1 sag resistance type silane modified polyether seal glue composition
| Component | Raw material | Mass parts |
| Silane-terminated polyether | Silicyl end capped polyether S303H | 133 |
| Plasticizer | Diisononyl phthalate | 63 |
| Filler | Calcium carbonate | 191 |
| Pigment | Titanium dioxide | 14 |
| Thixotropic agent | Polyamide wax Crayvallac SL | 4.1 |
| Ultraviolet absorbing agent | UV-326 | 1.5 |
| Light stabilizer | UV-622 | 1.1 |
| Deicer | Silane deicer A-171 | 3.5 |
| Coupling agent | Silane coupling A -1120 | 4.0 |
| Catalyst | Chelate tin catalyst U-220H | 2.3 |
Comparative example 1 and the main distinction of embodiment 1 are that the silicyl end capped polyether S303H of comparative example 1 is 133 parts,
Diisononyl phthalate is 63 parts, anergy diluent.
The preparation method of 1 sag resistance type silane modified polyether seal glue of comparative example, comprising the following steps:
1) form according to the ratio, by silane-terminated polyether, plasticizer, filler, pigment, ultraviolet absorbing agent, light stabilizer and
Vacuum double-shaft stirring kettle is added in thixotropic agent, is dispersed with stirring uniformly, vacuumizes≤- 0.09MPa, is heated to 110 DEG C, maintains 3 hours,
Obtain dry creme；
2) dry creme is cooled to 45 DEG C, deicer, coupling agent and catalyst is added, be mixed 20 minutes, obtain
Silane modified polyether seal glue product.
Comparative example 2
The sprayable silane modified polyether seal glue composition of this example is shown in Table 5.
The sprayable silane modified polyether seal glue composition of 5 comparative example of table 2
Comparative example 2 and the main distinction of embodiment 2 are that the silicyl end capped polyether SAX750 of comparative example 2 is changed to 78
Part, diisooctyl phthalate is changed to 101 parts, anergy diluent, and other components are constant.
The preparation method of 2 silane modified polyether seal glue of comparative example is identical as comparative example 1.
The sealant product of embodiment 1-3 and comparative example 1-2 are tested for the property, testing standard presses GB/T 14683-
2017 carry out, and test result is as shown in table 6.
The performance of 6 silane modified polyether seal glue of table
| Project | Unit | Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 1 | Comparative example 2 |
| Sag | mm | 0 | 0 | 0 | 0 | 3 |
| Surface drying time | min | 30 | 40 | 30 | 40 | 30 |
| It is extrudability | mL/min | 640 | 556 | 582 | 284 | 780 |
| Stretch modulus (20HM/23 DEG C) | MPa | 1.6 | 1.7 | 1.9 | 1.1 | 0.6 |
| Surely caking property is stretched | Without destruction | Without destruction | Without destruction | Without destruction | Without destruction | |
| Surely caking property is stretched after immersion | Without destruction | Without destruction | Without destruction | Without destruction | Without destruction | |
| Caking property after cold drawing-hot pressing | Without destruction | Without destruction | Without destruction | Without destruction | Without destruction | |
| Sprayable property | It is good | It is good | It is good | Difference | It is good | |
| Sagging resistance | It is high | It is high | It is high | It is high | It is low |
As can be seen from Table 6, it is 0 that the silane modified polyether seal glue of preparation of the embodiment of the present invention, which is provided simultaneously with sag resistance degree,
And it is high extrudability, have high sagging resistance and sprayable property, and caking property is good, adhesion strength is high or modulus is high.Comparative example 1 is allusion quotation
Type high sagging resistance silane modified polyether seal glue, performance is higher, and sprayable property is poor.Comparative example 2 is general sprayable silicon
Alkane modified polyether seal glue need to be added and will lead to sagging resistance variation compared with multi-solvent or plasticizer, also cause adhesive strength or mould
It measures lower.
Sprayable sag resistance type silane modified polyether seal glue prepared by the present invention has conventional urethane glue and organosilicon concurrently
The advantages of glue, fixing intensity is high, good seal performance, is not necessarily to silane coupling agent, construction is simple, adhesive force is strong, and surface drying time is short, can apply
Decorations, smell is extremely low, has high resiliency, improves the anti-seismic performance of sealing element.About 60g glue in sealant product 10 seconds of embodiment
It can complete 1m2Plate face spraying application to be bonded, and keep sizing material bumps do not collapse, assembly technology is simple, reduce process,
Not only speed of production is accelerated, but also is reduced costs.
Present invention introduces self-control reactive diluents to combine with thixotropic agent, then each by viscosity, thixotropy and consistency etc.
The formula design that aspect is taken into account can just be provided simultaneously with fabulous sprayable property and high sagging resistance, and it is strong to be provided simultaneously with high bonding
Degree, meets efficient spraying application ability and resistance to deformation shaping aesthetics, provides high-quality performance experience and higher economic benefit.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (10)
1. a kind of sprayable sag resistance type silane modified polyether seal glue, it is characterised in that: the component including following mass parts: 60
~100 parts of silane-terminated polyethers, 30~60 parts of reactive diluents, 40~60 parts of plasticizer, 120~200 parts of fillers, 0.1~
16 parts of pigment, 0.5~5 part of ultraviolet absorbing agent, 0.5~5 part of light stabilizer, 1~12 part of thixotropic agent, 1~10 part of deicer, 1
~10 parts of coupling agents, 0.1~5 part of catalyst；The reactive diluent is silane modified polyether.
2. a kind of sprayable sag resistance type silane modified polyether seal glue according to claim 1, it is characterised in that: described
Silane-terminated polyether selected from silicyl end capped polyether, dimethoxysilane in triethoxysilane mixing end capped polyether extremely
Few one kind.
3. a kind of sprayable sag resistance type silane modified polyether seal glue according to claim 1, it is characterised in that: described
Reactive diluent is made by component below: the polyethers of 4~14 mass parts, the modifying agent of 4~10 mass parts, 0.3~3 matter
Measure the end-capping reagent of part；The modifying agent is isocyanato silanes；The end-capping reagent is amino-alkyl silicane.
4. a kind of sprayable sag resistance type silane modified polyether seal glue according to claim 3, it is characterised in that: described
The preparation method of reactive diluent includes the following steps: to mix polyethers with modifying agent, is warming up to 70 DEG C~85 DEG C, reaction
0.5h~2h；50 DEG C are cooled to hereinafter, end-capping reagent is added, reaction 20min~40min obtains reactive diluent.
5. a kind of sprayable sag resistance type silane modified polyether seal glue according to claim 1, it is characterised in that: described
Plasticizer is selected from phthalic ester plasticizer, fatty acid ester plasticiser, phosphate plasticizer, epoxy ester series plasticizer
At least one of.
6. a kind of sprayable sag resistance type silane modified polyether seal glue according to claim 1, it is characterised in that: described
Filler is selected from least one of calcium carbonate, calcium silicates, diatomite, kaolin, montmorillonite, talcum powder.
7. a kind of sprayable sag resistance type silane modified polyether seal glue according to claim 1, it is characterised in that: described
Thixotropic agent is selected from least one of polyamide wax, rilanit special, fumed silica, organobentonite.
8. a kind of sprayable sag resistance type silane modified polyether seal glue according to claim 1, it is characterised in that: described
Deicer is silane deicer.
9. a kind of sprayable sag resistance type silane modified polyether seal glue according to claim 1, it is characterised in that: described
Coupling agent is silane coupling agent.
10. a kind of preparation method of any one of claim 1~9 sprayable sag resistance type silane modified polyether seal glue,
It is characterized by comprising following steps:
1) by silane-terminated polyether, reactive diluent, plasticizer, filler, pigment, ultraviolet absorbing agent, light stabilizer and touching
Become agent and stirred tank is added, stir under vacuum, be heated to 100 DEG C~120 DEG C, obtains dry creme；
2) dry creme is cooled to 50 DEG C hereinafter, deicer, coupling agent and catalyst is added, mixing obtains sprayable
Sag resistance type silane modified polyether seal glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910918485.5A CN110527475B (en) | 2019-09-26 | 2019-09-26 | Sprayable anti-sagging silane modified polyether sealant and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910918485.5A CN110527475B (en) | 2019-09-26 | 2019-09-26 | Sprayable anti-sagging silane modified polyether sealant and preparation method thereof |
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| CN115093828A (en) * | 2022-07-19 | 2022-09-23 | 江苏江永新材料科技有限公司 | Antifogging MS (Mass Spectrometry) automobile lamp sealant |
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