CN110669468A - Polyurethane adhesive composite material, polyurethane adhesive and preparation method thereof - Google Patents
Polyurethane adhesive composite material, polyurethane adhesive and preparation method thereof Download PDFInfo
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- CN110669468A CN110669468A CN201911009390.8A CN201911009390A CN110669468A CN 110669468 A CN110669468 A CN 110669468A CN 201911009390 A CN201911009390 A CN 201911009390A CN 110669468 A CN110669468 A CN 110669468A
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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
- C09J175/08—Polyurethanes from polyethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3203—Polyhydroxy compounds
- C08G18/3206—Polyhydroxy compounds aliphatic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3271—Hydroxyamines
- C08G18/3278—Hydroxyamines containing at least three hydroxy groups
- C08G18/3281—Hydroxyamines containing at least three hydroxy groups containing three hydroxy groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4833—Polyethers containing oxyethylene units
- C08G18/4837—Polyethers containing oxyethylene units and other oxyalkylene units
- C08G18/4841—Polyethers containing oxyethylene units and other oxyalkylene units containing oxyethylene end groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/63—Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds on to polymers
- C08G18/632—Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds on to polymers onto polyethers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6674—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6681—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38
- C08G18/6688—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38 with compounds of group C08G18/3271
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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
- C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
- C09J5/08—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers using foamed adhesives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2110/00—Foam properties
- C08G2110/0083—Foam properties prepared using water as the sole blowing agent
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2170/00—Compositions for adhesives
- C08G2170/60—Compositions for foaming; Foamed or intumescent adhesives
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention relates to a polyurethane adhesive composite material, a polyurethane adhesive and a preparation method thereof, wherein the polyurethane adhesive composite material comprises the following components in parts by weight: 60-80 parts of polyether polyol; 10-30 parts of polymer polyol; 3-8 parts of 1, 4-butanediol; 0.2-1.7 of a catalyst; 0.1-1% of triethanolamine; 2-5 parts of diethylene glycol; 0.2-1% of a surfactant; 0.1 to 0.5 of pigment; 0.1 to 1 part of a non-hydrolyzed polysiloxane copolymer. Compared with the prior art, the polyurethane adhesive composite material has the advantages of high tensile strength, good temperature resistance and good heat-resistant oil property.
Description
Technical Field
The invention relates to the technical field of polyurethane, in particular to a polyurethane adhesive composite material and a preparation method thereof, and a polyurethane adhesive with hardness in micropores.
Background
The polyurethane adhesive is an adhesive containing carbamate (-NHCOO-) or isocyanate (-NCO) in a molecular chain, and contains isocyanate and carbamate with strong polarity and high chemical activity, so that the polyurethane adhesive can have excellent chemical adhesion with materials containing active hydrogen, such as porous materials of foam plastics, wood, leather, fabrics, paper, ceramics and the like, and materials with smooth surfaces of metal, glass, rubber, plastics and the like. The hydrogen bonding between the polyurethane and the bonded material can enhance the molecular cohesion, so that the bonding is firmer. Due to the excellent bonding performance and the bonding adaptability to various base materials, the application field of the adhesive is continuously expanded, and the adhesive becomes the fastest-developing adhesive at home and abroad.
However, after the existing microporous polyurethane adhesive composition material is cured, the internal micropores are not uniformly distributed, so that the tensile strength of the adhesive is weaker, embrittlement and cracking are easy to occur at high temperature, and the adhesive property is greatly reduced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a polyurethane adhesive composition and a preparation method thereof.
It is another object of the present invention to provide a microcellular medium hardness polyurethane adhesive.
In order to achieve the object of the present invention, the present application provides the following technical solutions.
In a first aspect, the present application provides a polyurethane adhesive composition, comprising the following components in parts by weight:
in one embodiment of the first aspect, the first polyether polyol has a functionality of 3, a hydroxyl number of 30 to 40mgKOH/g and a viscosity of 800 to 1000 cp.
In an embodiment of the first aspect, the first polyether polyol is 330N.
In one embodiment of the first aspect, the second polyether polyol has a hydroxyl value of 19 to 23mgKOH/g and a viscosity of 4500 to 7000 cp.
In one embodiment of the first aspect, the second polyether polyol is one or more of H45 or LHH-500L.
In one embodiment of the first aspect, the catalyst comprises 33LV and SA1, wherein the mass ratio of 33LV to SA1 is (1-5): 1.
in one embodiment of the first aspect, the first chain extender is 1,4 butanediol.
In one embodiment of the first aspect, the second chain extender is diethylene glycol.
In one embodiment of the first aspect, the crosslinker is triethanolamine or diethanolamine.
In one embodiment of the first aspect, the surfactant is SI 2302.
In one embodiment of the first aspect, the pigment is black paste 9005.
In one embodiment of the first aspect, the non-hydrolyzed polysiloxane copolymer is DC 5000.
In a second aspect, the present application provides a method for preparing the polyurethane adhesive composition as described above, comprising the steps of: and sequentially adding the first polyether polyol, the second polyether polyol, the first chain extender, the second chain extender, the catalyst, the surfactant, the pigment and the non-hydrolyzed polysiloxane copolymer into the reaction kettle according to the parts by weight, and stirring to obtain the polyurethane composite material.
In one embodiment of the second aspect, the rotation speed of the stirring is 100 to 200rpm, and the stirring time is 0.5 to 2 hours.
In a third aspect, the present application also provides a polyurethane adhesive prepared by reacting the polyurethane adhesive composition with isocyanate.
Compared with the prior art, the invention has the beneficial effects that:
(1) after the rigid polyurethane adhesive composite material in the micropores prepared by the invention is cured, the internal micropores are uniformly distributed and have good tensile strength;
(2) the microporous medium-hardness polyurethane adhesive composite material prepared by the invention has good temperature resistance after being cured, and can ensure no cracking for a long time under the conditions of high temperature and low temperature;
(3) the microporous medium-hardness polyurethane adhesive composite material prepared by the invention has good heat-resistant oil characteristic after being cured.
Detailed Description
Unless otherwise indicated, implied from the context, or customary in the art, all parts and percentages herein are by weight and the testing and characterization methods used are synchronized with the filing date of the present application. Where applicable, the contents of any patent, patent application, or publication referred to in this application are incorporated herein by reference in their entirety and their equivalent family patents are also incorporated by reference, especially as they disclose definitions relating to synthetic techniques, products and process designs, polymers, comonomers, initiators or catalysts, and the like, in the art. To the extent that a definition of a particular term disclosed in the prior art is inconsistent with any definitions provided herein, the definition of the term provided herein controls.
The numerical ranges in this application are approximations, and thus may include values outside of the ranges unless otherwise specified. A numerical range includes all numbers from the lower value to the upper value, in increments of 1 unit, provided that there is a separation of at least 2 units between any lower value and any higher value. For example, if a compositional, physical, or other property (e.g., molecular weight, melt index, etc.) is recited as 100 to 1000, it is intended that all individual values, e.g., 100, 101,102, etc., and all subranges, e.g., 100 to 166,155 to 170,198 to 200, etc., are explicitly recited. For ranges containing a numerical value less than 1 or containing a fraction greater than 1 (e.g., 1.1, 1.5, etc.), then 1 unit is considered appropriate to be 0.0001, 0.001, 0.01, or 0.1. For ranges containing single digit numbers less than 10 (e.g., 1 to 5), 1 unit is typically considered 0.1. these are merely specific examples of what is intended to be expressed and all possible combinations of numerical values between the lowest value and the highest value enumerated are to be considered to be expressly stated in this application.
When used with respect to chemical compounds, the singular includes all isomeric forms and vice versa (e.g., "hexane" includes all isomers of hexane, individually or collectively) unless expressly specified otherwise. In addition, unless explicitly stated otherwise, the use of the terms "a", "an" or "the" are intended to include the plural forms thereof.
The terms "comprising," "including," "having," and derivatives thereof do not exclude the presence of any other component, step or procedure, and are not intended to exclude the presence of other elements, steps or procedures not expressly disclosed herein. To the extent that any doubt is eliminated, all compositions herein containing, including, or having the term "comprise" may contain any additional additive, adjuvant, or compound, unless expressly stated otherwise. Rather, the term "consisting essentially of … …" excludes any other components, steps or processes from the scope of any of the terms hereinafter recited, insofar as such terms are necessary for performance. The term "consisting of … …" does not include any components, steps or processes not specifically described or listed. Unless explicitly stated otherwise, the term "or" refers to the listed individual members or any combination thereof.
The distribution of micropores in the traditional microporous polyurethane is not uniform enough, so that the tensile strength of the polyurethane is weaker, embrittlement and cracking are easy to occur at high temperature, and the tensile strength is greatly reduced. The application aims to provide a polyurethane adhesive composite material and a preparation method thereof, and provides a micropore hardness polyurethane adhesive with high tensile strength and good temperature resistance.
In one embodiment, the present application provides a polyurethane adhesive composition, which comprises the following components in parts by weight:
in one embodiment, the first polyether polyol is a high resilience polyether polyol having a functionality of 3, a hydroxyl value of 30 to 40mgKOH/g, and a viscosity of 800 to 1000 cp.
In a specific embodiment, the polyether polyol is 330N, which is a general polyether polyol which takes glycerin as an initiator, propylene oxide and ethylene oxide as polymerization monomers, contains a high primary hydroxyl active component, is terminated by ethylene oxide, and has a molecular weight of 4800. The 330N used in the present application was purchased from Shanghai Jinjinle industries, Ltd.
In one embodiment, the second polyether polyol has a hydroxyl value of 19 to 23mgKOH/g and a viscosity of 4500 to 7000 cp.
In one embodiment, the second polyether polyol is H45. The polymer polyol can improve the temperature resistance, tensile strength and elongation at break of a system, and is formed by taking universal polyether polyol as basic polyether, adding vinyl monomers such as acrylonitrile and styrene and an initiator to carry out free radical graft polymerization, so that the structure not only enables polyurethane foam to have higher bearing capacity and good resilience, but also enables the foam cell structure and the physical and mechanical properties to be improved. . H45, as used herein, is available from Changhua chemical technology, Inc.
In one specific embodiment, the catalyst comprises 33LV and SA1, wherein the mass ratio of 33LV to SA1 is (1-5): 1. the catalyst can accelerate the curing speed of the product. Among them, 33LV was purchased from shanghai specialty chemicals (shanghai) ltd, and SA1 was purchased from shanghai deyin chemicals ltd. SA1 is a delayed thermosensitive catalyst, after the combined material generates heat through 33LV initial gel, SA1 is activated in the middle stage of elastomer forming, and the combined material and SA1 are catalyzed together, so that the combined material is cured to have the characteristics of slow initial gel and subsequent quick curing, and the process operability and the formability of the combined material are well represented.
In one embodiment, the surfactant is SI 2302. The surfactant is a silane surfactant, so that the micropore uniformity of the system is better. The SI2302 adopted in this application is purchased from Shanghai Special chemistry (Shanghai) Co., Ltd.
In one embodiment, the pigment is black paste 9005, which is used for coloring and improving the temperature resistance of the product. The black paste 9005 used in this application was purchased from Dragon floor materials, Inc. of Dongguan city.
In one embodiment, the non-hydrolyzed polysiloxane copolymer is DC5000, and the addition of DC5000 can eliminate large bubbles inside the product, so that the pores in the system are more uniform. The DC5000 as used in this application was purchased from winning specialty chemicals (shanghai) limited.
In a specific embodiment, the first chain extender is 1, 4-butanediol, the second chain extender is diethylene glycol, and by adding 1, 4-butanediol and diethylene glycol as chain extenders, the regularity of hard segment partitions in the crosslinking process is improved, the crystallinity is improved, and the temperature resistance and the tensile strength of the product are further improved.
In a specific embodiment, the cross-linking agent is triethanolamine, which acts as both a cross-linking agent and a catalyst in the system, thereby increasing the tensile strength of the system.
In a second aspect, the present application provides a method of preparing a rigid polyurethane adhesive composition in micro-pores as described above, comprising the steps of: and sequentially adding the first polyether polyol, the second polyether polyol, the first chain extender, the second chain extender, the catalyst, the surfactant, the pigment and the non-hydrolyzed polysiloxane copolymer into the reaction kettle according to the parts by weight, and stirring to obtain the microporous medium-hardness polyurethane composite material.
In one embodiment, the rotation speed of the stirring is 100 to 200rpm, and the stirring time is 0.5 to 2 hours.
In a third aspect, the present application also provides a polyurethane adhesive, which is prepared by reacting the polyurethane adhesive composition with isocyanate.
In a specific embodiment, the isocyanate is liquefied MDI, and the specific model is Shanghai Henshimei 2020, wherein the mass ratio of the polyurethane adhesive composition to the isocyanate is 100: (20-25).
Examples
The following will describe in detail the embodiments of the present invention, which are implemented on the premise of the technical solution of the present invention, and the detailed embodiments and the specific operation procedures are given, but the scope of the present invention is not limited to the following embodiments.
In the following examples, the isocyanate was selected from liquefied MDI, a specific type being Shanghai Henshimei 2020.
Example 1
The microporous medium-hardness polyurethane adhesive composite material has the following formula:
the preparation method comprises the following steps:
① the materials are pumped into the reaction kettle by a gear pump, and the feed inlet of the reaction kettle is covered after all the materials are pumped.
② starting the stirring paddle, stirring at 50 + -5 HZ frequency for 60 min, and stirring at normal temperature and pressure.
③ stirring was stopped, and a sample was taken for testing.
④, after the performance test is qualified, the discharge port is connected with the filter bag for filtering and discharging to obtain the polyurethane adhesive composite material.
⑤ packaging the product, and storing in finished product warehouse for delivery.
The above-mentioned combined material was used as material A, isocyanate was used as material B, and material A and material B were mixed in a ratio of 100:25 to obtain the polyurethane adhesive according to example 1.
Example 2
The microporous medium-hardness polyurethane adhesive composite material has the following formula:
the preparation method comprises the following steps:
① the materials are pumped into the reaction kettle by a gear pump, and the feed inlet of the reaction kettle is covered after all the materials are pumped.
② starting the stirring paddle, stirring at 50 + -5 HZ frequency for 60 min, and stirring at normal temperature and pressure.
③ stirring was stopped, and a sample was taken for testing.
④, after the performance test is qualified, the discharge port is connected with the filter bag for filtering and discharging to obtain the polyurethane adhesive composite material.
⑤ packaging the product, and storing in finished product warehouse for delivery.
When used, the above-described combination was used as material A, isocyanate was used as material B, and material A and material B were mixed at a ratio of 100:22 to obtain a polyurethane adhesive according to example 2.
Example 3
The microporous medium-hardness polyurethane adhesive composite material has the following formula:
the preparation method comprises the following steps:
① the materials are pumped into the reaction kettle by a gear pump, and the feed inlet of the reaction kettle is covered after all the materials are pumped.
② starting the stirring paddle, stirring at 50 + -5 HZ frequency for 60 min, and stirring at normal temperature and pressure.
③ stirring was stopped, and a sample was taken for testing.
④, after the performance test is qualified, the discharge port is connected with the filter bag for filtering and discharging to obtain the polyurethane adhesive composite material.
⑤ packaging the product, and storing in finished product warehouse for delivery.
When used, the above-described combination was used as material A, isocyanate was used as material B, and material A and material B were mixed at a ratio of 100:20 to obtain a polyurethane adhesive according to example 3.
The products prepared in examples 1-3 and comparative example 1 were tested with a commercially available Bayflex S69-E-95 (comparative example 1) by the following specific procedure: 1. the material A and the material B are weighed according to the corresponding proportion, stirred for 10 seconds at the rotating speed of 4000RPM, and the mixed solution is poured into a mold with the thickness of 2mm, and the detection results are shown in the following table.
The embodiments described above are intended to facilitate the understanding and appreciation of the application by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present application is not limited to the embodiments herein, and those skilled in the art who have the benefit of this disclosure will appreciate that many modifications and variations are possible within the scope of the present application without departing from the scope and spirit of the present application.
Claims (10)
1. The polyurethane adhesive composite material is characterized by comprising the following components in parts by weight:
2. the polyurethane adhesive composition of claim 1, wherein the first polyether polyol is a high resilience polyether polyol having a functionality of 3, a hydroxyl value of 30 to 40mgKOH/g, and a viscosity of 800 to 1000 cp.
3. The polyurethane adhesive composition of claim 2, wherein the first polyether polyol is 330N.
4. The polyurethane adhesive composition of claim 1, wherein the second polyether polyol has a hydroxyl value of 19 to 23mgKOH/g and a viscosity of 4500 to 7000 cp.
5. The polyurethane adhesive composition of claim 4, wherein the second polyether polyol is one or more of H45 or LHH-500L.
6. The polyurethane adhesive composition as claimed in claim 1, wherein the catalyst comprises 33LV and SA1, wherein the mass ratio of 33LV to SA1 is (1-5): 1.
7. the polyurethane adhesive composition of claim 1, wherein the first chain extender is 1,4 butanediol;
the second chain extender is diethylene glycol;
the cross-linking agent is triethanolamine or diethanolamine;
the surfactant is SI 2302;
the pigment is black paste 9005;
the non-hydrolyzed polysiloxane copolymer was DC 5000.
8. A preparation method of the polyurethane adhesive composition as described in any one of claims 1 to 7, comprising the steps of:
and sequentially adding the first polyether polyol, the second polyether polyol, the first chain extender, the second chain extender, the catalyst, the surfactant, the pigment and the non-hydrolyzed polysiloxane copolymer into a reaction kettle according to the parts by weight, and stirring to obtain the polyurethane adhesive composite material.
9. The preparation method of the polyurethane adhesive composition as claimed in claim 8, wherein the stirring speed is 100-200 rpm, and the stirring time is 0.5-2 h.
10. A polyurethane adhesive, characterized in that the polyurethane adhesive is prepared by reacting the polyurethane adhesive composition of any one of claims 1 to 7 with isocyanate.
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| CN201911009390.8A CN110669468B (en) | 2019-10-23 | 2019-10-23 | Polyurethane adhesive composite material, polyurethane adhesive and preparation method thereof |
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| CN201911009390.8A CN110669468B (en) | 2019-10-23 | 2019-10-23 | Polyurethane adhesive composite material, polyurethane adhesive and preparation method thereof |
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| CN110669468B CN110669468B (en) | 2021-10-22 |
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| CN104401238A (en) * | 2014-10-29 | 2015-03-11 | 郑州精益达汽车零部件有限公司 | Vehicle seat sponge, manufacturing method, module and vehicle seat |
| CN106397806A (en) * | 2016-08-18 | 2017-02-15 | 黎明化工研究设计院有限责任公司 | Method for preparing temperature-adjustable polyurethane foam |
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2019
- 2019-10-23 CN CN201911009390.8A patent/CN110669468B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2005749C1 (en) * | 1991-01-25 | 1994-01-15 | Лидия Геннадьевна Китаева | Polyurethane composition |
| CN104401238A (en) * | 2014-10-29 | 2015-03-11 | 郑州精益达汽车零部件有限公司 | Vehicle seat sponge, manufacturing method, module and vehicle seat |
| CN106397806A (en) * | 2016-08-18 | 2017-02-15 | 黎明化工研究设计院有限责任公司 | Method for preparing temperature-adjustable polyurethane foam |
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