CN109233732A - One-component Strong Adhesive and the preparation method and application thereof - Google Patents
One-component Strong Adhesive and the preparation method and application thereof Download PDFInfo
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- CN109233732A CN109233732A CN201810877652.1A CN201810877652A CN109233732A CN 109233732 A CN109233732 A CN 109233732A CN 201810877652 A CN201810877652 A CN 201810877652A CN 109233732 A CN109233732 A CN 109233732A
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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
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
- C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
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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
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
- C08G18/4018—Mixtures of compounds of group C08G18/42 with compounds of group C08G18/48
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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
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
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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
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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
- C08G18/67—Unsaturated compounds having active hydrogen
- C08G18/69—Polymers of conjugated dienes
- C08G18/698—Mixtures with compounds of group C08G18/40
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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
- C09J175/06—Polyurethanes from polyesters
-
- 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
- C09J175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
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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)
Abstract
The present invention relates to a kind of one-component Strong Adhesives, include the raw material of following weight percent: polyethers and polyester blend type polyalcohol 20%-40%；Isocyanates 20%-40%；Response type tackifying resin 5%-10%；Polybutadiene-modified epoxy resin 5%-10%；Solvent 15%-35%.Invention adhesive also has stronger initial bonding strength, whole viscous force and heat resistance, can be applied in PVC/ density board bonding and beech/beech bonding, prospect is boundless.
Description
Technical field
The present invention relates to adhesive areas, more particularly to one-component Strong Adhesive and the preparation method and application thereof.
Background technique
Current contact adhesive on the market is mainly based on pressure sensitive adhesive class.Including acrylate polymer type, ethylene
Base ester polymer-type, chloroprene type and styrenic polymer etc..Such adhesive is usually not used for structural bond, heat-resisting,
Weather-proof and chemical-resistance is lower.And sqtructural adhesive on the market is generally response type adhesive, including polyurethane polymerization
Object, epoxy polymer and acrylate polymer etc. have preferable heat-resisting, weather-proof, water-fast and chemical-resistance, final to have
There is higher adhesive strength.But usual initial bonding strength is lower, does not meet the requirement of contact adhesive high initial bonding strength.
Summary of the invention
Based on this, the present invention provides a kind of one-component Strong Adhesive, initial bonding strength, whole viscous force and heat resistance with higher
Energy.
The specific technical proposal is:
A kind of one-component Strong Adhesive, includes the raw material of following weight percent:
The polyethers and polyester blend type polyalcohol are selected from Kosin polyol-1000 in one of the embodiments,.
The response type tackifying resin is selected from phenolic resin in one of the embodiments,.
The phenolic resin is in Kosin resin-2# and Kosin resin-3# in one of the embodiments,
It is one or more of.
The polybutadiene-modified epoxy resin is selected from Kosin Epoxy-1# in one of the embodiments,.
The isocyanates is selected from Suprasec 2020 in one of the embodiments,.
The solvent is selected from butanone or ethyl acetate in one of the embodiments,.
The one-component Strong Adhesive includes the raw material of following weight percent in one of the embodiments:
The present invention also provides the preparation methods of above-mentioned one-component Strong Adhesive.
The specific technical proposal is:
A kind of preparation method of one-component Strong Adhesive, comprising the following steps:
The isocyanates is warming up to 70-90 DEG C, a part of polyethers and polyester blend type polymerization is added
Object reacts 1-2h, adds polybutadiene-modified epoxy resin, reacts 1-2h, obtains modified isocyanate performed polymer；
Remaining polyethers and polyester blend type polyalcohol are added in the modified isocyanate performed polymer, reacts 1-2h,
Temperature is reduced to 40-60 DEG C, the solvent is added, 0.3-0.8h is reacted, is down to room temperature, the response type tackifying resin is added,
React 0.5-1h to get.
The present invention also provides above-mentioned one-component Strong Adhesive answering in PVC/ density board bonding and beech/beech bonding
With.
Compared with prior art, the invention has the following advantages:
Polyether polyols are added instead of substep using polyethers and polyester blend type polyalcohol in above-mentioned one-component Strong Adhesive
Pure and mild polyester polyol reacts polyethers and polyester polyol with isocyanates simultaneously, and polyethers and polyester construction can relatively
Even is distributed in strand, keeps the performance of adhesive of the present invention more balanced；Polybutadiene-modified ring is introduced simultaneously
Oxygen resin, polybutadiene configuration can be interspersed in above-mentioned molecular structure, formed inierpeneirating network structure, improved the crystallization of adhesive
Degree and initial bonding strength, epoxy group can also improve the rigidity, heat resistance and bonding force of adhesive.Meanwhile in polyethers and polyester
Object, polybutadiene-modified epoxy resin reaction system in, cooperation addition response type tackifying resin can be improved further anti-
The crystallinity of system is answered, and then makes adhesive of the present invention initial bonding strength with higher.
Wherein, polyethers and polyester blend type polyalcohol are preferably Kosin polyol-1000, polybutadiene-modified asphalt mixtures modified by epoxy resin
Rouge is preferably Kosin Epoxy-1#, and response type tackifying resin is preferably phenolic resin, and three can be mutually improved, in adhesive
Multiple reaction nodes, the more conducively formation of inierpeneirating network structure are formed in system, further increase adhesive of the present invention
Initial bonding strength.Meanwhile isocyanates also can further be acted on polybutadiene-modified epoxy resin and phenolic resin, improve adhesive
Initial bonding strength and adhesive strength, so that invention adhesive is able to maintain higher whole viscous force.
In the preparation process of one-component Strong Adhesive of the present invention, first by isocyanates and a part of polyethers and gather
The reaction of ester blending type polyhydric alcohol polymer, adds polybutadiene-modified epoxy resin and further reacts, obtain modified isocyanic acid
Remaining polyethers and polyester blend type polyhydric alcohol polymer is added in ester performed polymer into modified Isocyanate prepolymers body again later,
And the raw materials such as response type phenolic resin.By preparing modified isocyanate performed polymer, be conducive to increase invention adhesive
Initial bonding strength and whole viscous force.
Detailed description of the invention
Fig. 1 is that initial bonding strength and whole viscous force test (T removing) schematic diagram.
Fig. 2 is shear strength performance test schematic diagram.
Specific embodiment
It to facilitate the understanding of the present invention, below will be to invention is more fully described.The present invention can be with many not
With form realize, however it is not limited to embodiment described herein.On the contrary, purpose of providing these embodiments is makes to this
Disclosure of the invention content understanding is more thorough and comprehensive.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein "and/or" includes one or more phases
Any and all combinations of the listed item of pass.
One-component Strong Adhesive and the preparation method and application thereof of the invention is made into one below in conjunction with specific embodiment
Step detailed description.
All raw materials derive from commercially available in following specific embodiments.
Polyethers and polyester blend type polyalcohol Kosin polyol-1000 are purchased from Guangzhou section sheng, a reed pipe wind instrument new material science and technology；
Polybutadiene-modified epoxy resin Kosin Epoxy-1# is purchased from Guangzhou section sheng, a reed pipe wind instrument new material science and technology；
Phenolic resin Kosin resin-2# is purchased from Guangzhou section sheng, a reed pipe wind instrument new material science and technology；
Phenolic resin Kosin resin-3# is purchased from Guangzhou section sheng, a reed pipe wind instrument new material science and technology；
Isocyanates: Suprasec 2020 (liquefied mdi) is purchased from Huntsman；
Polyether polyol PPG-1000 is purchased from DOW Chemical；
Polyester polyol Desmophen1652 is created purchased from Cohan；
Terpene resin TR105 is purchased from Arizona, USA chemistry.
Embodiment 1
The present embodiment provides a kind of one-component Strong Adhesives, are prepared by the raw material of following weight percent:
30% polyethers and polyester blend type polyalcohol Kosin polyol-1000,30% isocyanates Suprasec
2020,5% phenolic resin Kosin resin-2#, 10% polybutadiene-modified epoxy resin, 15% butanone and 10%
Ethyl acetate.
The preparation method comprises the following steps:
Isocyanates Suprasec 2020 is poured into stirred tank and is heated to 80 DEG C, 20% polyethers and polyester is added
Blending type polyalcohol Kosin polyol-1000 controls reaction temperature between 70-90 DEG C, reacts 2h, 10% polybutadiene is added
Modified epoxy reacts 1h, obtains modified isocyanate performed polymer.
Remaining polyethers and polyester blend type polyalcohol Kosin are added in above-mentioned modified isocyanate performed polymer
Polyol-1000, sealing reaction 2h, reduces temperature of charge to 50 DEG C, butanone is added, ethyl acetate stirs evenly, sealing reaction
0.5h adds phenolic resin Kosin resin-2#, and 0.5h is to get adhesive for sealing reaction.
Embodiment 2
The present embodiment provides a kind of one-component Strong Adhesives, are prepared by the raw material of following weight percent:
30% polyethers and polyester blend type polyalcohol Kosin polyol-1000,30% isocyanates Suprasec
2020,8% polybutadiene-modified epoxy resin, 5% phenolic resin Kosin resin-2#, 5% phenolic resin Kosin
Resin-3#, 12% butanone and 10% ethyl acetate.
The preparation method comprises the following steps:
Isocyanates Suprasec 2020 is poured into stirred tank and is heated to 80 DEG C, 20% polyethers and polyester is added
Blending type polyalcohol Kosin polyol-1000 controls reaction temperature between 70-90 DEG C, reacts 2h, 10% polybutadiene is added
Modified epoxy reacts 1h, obtains modified isocyanate performed polymer.
Remaining polyethers and polyester blend type polyalcohol Kosin polyol- are added in above-mentioned Isocyanate prepolymers body
1000, sealing reaction 2h reduce temperature of charge to 50 DEG C, and addition butanone, ethyl acetate stir evenly, sealing reaction 0.5h, then
Phenolic resin Kosin resin-2#, sealing reaction 0.5h is added, finally plus 0.5h is reacted in Kosin resin-3#, sealing, i.e.,
Obtain adhesive.
Embodiment 3
The present embodiment provides a kind of one-component Strong Adhesives, are prepared by the raw material of following weight percent:
The phenolic aldehyde tree of 35% polyethers and polyester blend type polyalcohol, 30% isocyanates Suprasec 2020,5%
Rouge Kosin resin-2#, 5% phenolic resin Kosin resin-3#, 5% polybutadiene-modified epoxy resin, 10%
Butanone and 10% ethyl acetate.
The preparation method comprises the following steps:
Isocyanates Suprasec 2020 is poured into stirred tank and is heated to 80 DEG C, 25% polyethers and polyester is added
Blending type polyalcohol Kosin polyol-1000 controls reaction temperature between 70-90 DEG C, reacts 2h, 5% polybutadiene is added
Modified epoxy reacts 1h, obtains modified isocyanate performed polymer.
Remaining polyethers and polyester blend type polyalcohol Kosin polyol- are added in above-mentioned Isocyanate prepolymers body
1000, sealing reaction 2h reduce temperature of charge to 50 DEG C, and addition butanone, ethyl acetate stir evenly, sealing reaction 0.5h, then
Phenolic resin Kosin resin-2#, sealing reaction 0.5h is added, finally plus 0.5h is reacted in Kosin resin-3#, sealing, i.e.,
Obtain adhesive.
Embodiment 4
The present embodiment provides a kind of one-component Strong Adhesives, are prepared by the raw material of following weight percent:
The phenolic aldehyde tree of 35% polyethers and polyester blend type polyalcohol, 30% isocyanates Suprasec 2020,5%
Rouge Kosin resin-2#, 5% phenolic resin Kosin resin-3#, 5% polybutadiene-modified epoxy resin, 10%
Butanone and 10% ethyl acetate.
The preparation method comprises the following steps:
Isocyanates Suprasec 2020 is poured into stirred tank, after being heated to 80 DEG C, whole polyethers is added and polyester is total
Mixed type polyalcohol Kosin polyol-1000, stirs evenly, and sealing reaction 2h adds 5% polybutadiene epoxy resin,
1h is reacted, reduces temperature of charge to 50 DEG C, addition butanone, ethyl acetate stir evenly, and sealing reaction 0.5h adds phenolic aldehyde tree
Rouge Kosin resin-2# and 3#, 0.5h is to get adhesive for sealing reaction.
Comparative example 1
This comparative example provides a kind of adhesive, and substantially the same manner as Example 1, difference is, by polyethers and polyester blend type
Polyalcohol Kosin polyol-1000 replaces with polyether polyol PPG-1000 (DOW Chemical) and polyester polyol
The mixture of Desmophen 1652 (Cohan wound).
Specifically it is prepared by the raw material of following weight percent:
15% polyether polyol PPG-1000,15% polyester polyol Desmophen1652,30% isocyanates
Phenolic resin Kosin resin-2# of Suprasec 2020,5%, 10% polybutadiene-modified epoxy resin, 15% butanone
With 10% ethyl acetate.
The preparation method comprises the following steps:
The polyester polyol Desmophen1652 of 15% polyether polyol PPG-1000,15% are stirred in advance first
It is uniformly spare.Isocyanates Suprasec 2020 is poured into stirred tank and is heated to 80 DEG C, it is (above-mentioned mixed in advance to be added 20%
Get togather) polyethers and polyester, reaction temperature is controlled between 70-90 DEG C, reacts 2h, and 10% polybutadiene-modified epoxy resin is added,
1h is reacted, modified isocyanate performed polymer is obtained, then proceedes to that the remaining polyethers and polyester being pre-mixed, sealing reaction is added
2h reduces temperature of charge to 50 DEG C, and addition butanone, ethyl acetate stir evenly, and sealing reaction 0.5h adds phenolic resin
Kosin resin-2#, 0.5h is to get adhesive for sealing reaction.
Comparative example 2
This comparative example provides a kind of adhesive, and substantially the same manner as Example 1, difference is, response type tackifying resin is replaced
It is changed to terpene resin.
Specifically it is prepared by the raw material of following weight percent:
30% polyethers and polyester blend type polyalcohol Kosin polyol-1000,30% isocyanates Suprasec
2020,5% terpene resin TR105,10% polybutadiene-modified epoxy resin, 15% butanone and 10% ethyl acetate.
The preparation method comprises the following steps:
Isocyanates Suprasec 2020 is poured into stirred tank and is heated to 80 DEG C, 20% polyethers and polyester is added
Blending type polyalcohol Kosin polyol-1000 controls reaction temperature between 70-90 DEG C, reacts 2h, 10% polybutadiene is added
Modified epoxy reacts 1h, obtains modified isocyanate performed polymer, then proceed to that remaining polyethers is added and polyester blend type is more
First alcohol Kosin polyol-1000, sealing reaction 2h reduce temperature of charge to 50 DEG C, and addition butanone, ethyl acetate stirring are equal
Even, sealing reaction 0.5h adds terpene resin TR105, and 0.5h is to get adhesive for sealing reaction.
Performance test and application
1, initial bonding strength, whole viscous force (T removing) test method (as shown in Figure 1): GB/T 2791-1995 is referred to.
Method particularly includes: respectively by adhesive coating device even spread prepared in embodiment 1-4 and comparative example 1-2
On the PVC film material of 1 inch in width, start stopwatch, after room temperature natural air drying 3 minutes, the fitting of two panels membrane material, flattening-out are packed into
Machine tests peeling force, i.e. initial bonding strength, peeling force is tested after 48h when stopwatch shows 4 minutes, i.e., whole viscous force.
2, shear strength performance test (referring to fig. 2): GB 7124-1986 is referred to.
Instrument: automatic gas press, stretching-machine, precision are the measurer of 1mm.
Test piece: moisture content 10 ± 2%, 700 ± 100Kg/m of density3Beech (25 × 30 × 10).
The preparation of sample: being coated in adhesive prepared in embodiment 1-4 and comparative example 1-2 on splicing face, is glued face
Product is 25mm × 25mm, glue-spread 100g/m2, two pieces of test pieces are coincided into splicing into sample with automatic sample pressuring machine, are applied
0.1-0.2N/mm2Pressure.
Testing procedure:
(1) it is glued the length and width of part with gage measuring sample；
(2) ready sample is placed in fixture, applied power should be made parallel to each other, start stretching-machine, write down by
Maximum load when compression shear is cut.
Calculation method:
(1) calculating of shear strength: δ=P/ (L × B)
In formula: δ --- shear strength, Mpa or N/mm2
Maximum load when P--- sample fracture, N
L--- sample is glued the length of part, mm
B--- sample is glued the width of part, mm
(2) sample for representing same performance is generally no less than five.
By applying constant pressure on automatic press, the substrate for compression shear test is standard beech, length × wide
× height corresponds to 30 × 25 × 10mm3；
Scene temperature error is no more than 1 DEG C；
Bonding overlapping area is 25 × 25mm2。
3, density board bonding and resistance to Thermal test
Adhesive prepared in embodiment 1-4 and comparative example 1-2 is uniformly coated on 1 inch in width with coating device respectively
PVC film material on, start stopwatch, after room temperature natural air drying 1 minute, PVC film material is attached to density plate surface, flattening-out, by table 1-3
Middle interval time tears PVC film, observes material damage situation, while by the plate glued after being placed at room temperature for for 24 hours, being put into 100 DEG C
After baking oven 4h, after taking out natural cooling, observation membrane material and density board abutting edge are finally torn again whether there is or not phenomena such as rousing of having cracked
PVC film observes material damage situation.
As shown in table 1-3, test temperature is 25 DEG C to test result.
1 each performance parameter of embodiment 1-2 of table
2 each performance parameter of embodiment 3-4 of table
3 comparative example 1-2 various performance parameters of table
It can be seen that the one-component Strong Adhesive initial bonding strength with higher in embodiment 1-4 from table 1-3 to glue with whole
Power can reduce pressing time using early period, significantly improve production efficiency.PVC/ density board fitting test result is shown, uses reality
The adhesive of example 1 is applied, when tearing PVC film over the course of 15 mins, material glue wire drawing occurs, uses the gluing of embodiment 2 and embodiment 3
Agent occurs as soon as glue wire drawing when tearing PVC film within 10 minutes, and the adhesive of embodiment 3 even more tore PVC film at 10 minutes
When, there is density board Failure of Shallow, illustrates that the adhesive initial bonding strength of embodiment 1-3 is high, the preparation method of 4 adhesive of embodiment
It is slightly different with the preparation method of embodiment 1-3, initial bonding strength is slightly weak.The test result of compression shear strength shows, embodiment
Intensity behind adhesive 24 hours of 1-4 has been above 6Mpa, meets the requirement of structural bond, and the pressure of common pressure sensitive adhesive
Contracting shear strength is not essentially exceeding 2Mpa.And the adhesive of embodiment 1-4 has good heat resistance.
In comparative example 1, mixed polyether polyol PPG-1000 and polyester polyol Desmophen 1652 is added, with
Polyethers is added in embodiment 1 to compare with polyester blend type polyalcohol Kosin polyol-1000, the initial bonding strength of adhesive is lower,
And in the fitting test of PVC/ density board, without material damage in the short time.Illustrate that the pure and mild polyester of different types of polyether polyols is more
It is different surely to form inierpeneirating network structure with polybutadiene-modified epoxy resin and response type tackifying resin when first alcohol is added, increase
Add initial bonding strength.
In comparative example 2, response type tackifying resin is replaced with into terpenes tackifying resin, and phenolic resin is added in embodiment 1
It compares, the initial bonding strength of adhesive is lower, also, in the fitting test of PVC/ density board, without material damage in the short time, illustrates initial stage
Adhesive strength is weak, the addition of terpenes tackifying resin, fails to improve adhesive initial bonding strength.
Comparative example 1 and comparative example 2 illustrate that polybutadiene-modified epoxy resin, response type tackifying resin and polyethers and polyester are total
The cooperation of mixed type polyalcohol, plays a significant role the raising for promoting adhesive initial bonding strength.
Performance comparison
The single-component adhesive of embodiment 1 and commercially available adhesive are subjected to performance comparison, wherein resistance to Thermal test it is specific
Method are as follows: by after fitting PVC and density board be put into 60 DEG C of baking oven 8h, take out observation illustrate if having cracking it is heat-resisting less than 60
DEG C, if continuing to be put into 80 DEG C of baking oven 8h without cracking, if take out observation have cracking illustrate it is heat-resisting less than 80 DEG C, if without cracking continue
Be put into 100 DEG C of baking oven 8h, take out observation illustrate if having cracking it is heat-resisting less than 100 DEG C, otherwise be greater than 100 DEG C.Initial bonding strength, end
Viscous force and tensile shear(ing) test refer to above-mentioned performance test methods.The results are shown in Table 4.
4 performance comparison result of table
As shown in Table 4, the adhesive of the embodiment of the present invention 1 has longer guarantee the quality relative to commercially available several adhesive
Phase, reduce product because easily it is expired caused by waste and environmental pollution.1 adhesive of embodiment is toxic without triphen class and halogenated hydrocarbon
Solvent is conducive to the physical and mental health of operator.In contrast, 1 adhesive of embodiment initial bonding strength with higher, whole viscous force and
Heat resistance.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of one-component Strong Adhesive, which is characterized in that include the raw material of following weight percent:
2. one-component Strong Adhesive according to claim 1, which is characterized in that the polyethers and polyester blend type are polynary
Alcohol is selected from Kosin polyol-1000.
3. one-component Strong Adhesive according to claim 1, which is characterized in that the response type tackifying resin is selected from phenol
Urea formaldehyde.
4. one-component Strong Adhesive according to claim 3, which is characterized in that the phenolic resin is selected from Kosin
One or more of resin-2# and Kosin resin-3#.
5. one-component Strong Adhesive according to claim 1-4, which is characterized in that the polybutadiene-modified
Epoxy resin is selected from Kosin Epoxy-1#.
6. one-component Strong Adhesive according to claim 1-4, which is characterized in that the isocyanates is selected from
Suprasec 2020。
7. one-component Strong Adhesive according to claim 1-4, which is characterized in that the solvent is selected from butanone
Or ethyl acetate.
8. one-component Strong Adhesive according to claim 1-4, which is characterized in that include following weight hundred
Divide the raw material of ratio:
9. a kind of preparation method of the described in any item one-component Strong Adhesives of claim 1-8, which is characterized in that including with
Lower step:
The isocyanates is warming up to 70-90 DEG C, a part of polyethers and polyester blend type polyhydric alcohol polymer is added, instead
1-2h is answered, polybutadiene-modified epoxy resin is added, 1-2h is reacted, obtains modified isocyanate performed polymer；
Remaining polyethers and polyester blend type polyalcohol are added in the modified isocyanate performed polymer, reacts 1-2h, reduces
The solvent is added to 40-60 DEG C in temperature, reacts 0.3-0.8h, is down to room temperature, the response type tackifying resin is added, and reacts
0.5-1h to get.
10. the described in any item one-component Strong Adhesives of claim 1-8 are to the demanding building decoration materials of initial bonding strength
Application in bonding.
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