CN109810668A - A kind of polyurethane adhesive and preparation method thereof - Google Patents
A kind of polyurethane adhesive and preparation method thereof Download PDFInfo
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- CN109810668A CN109810668A CN201910083462.7A CN201910083462A CN109810668A CN 109810668 A CN109810668 A CN 109810668A CN 201910083462 A CN201910083462 A CN 201910083462A CN 109810668 A CN109810668 A CN 109810668A
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Abstract
A kind of polyurethane adhesive, each component are as follows according to the mass fraction: 420~440 parts of bisphenol A type epoxy resin；130~150 parts of acrylic acid；0.1~0.3 part of hydroquinone；60-100 parts of toluene di-isocyanate(TDI)；0.2~0.4 part of dispersing agent；0.2~0.4 part of defoaming agent；100-200 parts of diluent.The invention also discloses the preparation methods of the polyurethane adhesive.The present invention has the advantages that (1), the polyurethane adhesive and steel plate adhesion strength reach 10MPa or more, reach 2MPa or more with Concrete Bond Strength, and cross-linking reaction can be played with modified polyurethane coagulation soil binder；(2), waterproof performance is strong, and chloride ion transmitance is less than 100 coulombs in entire product structure 6 hours；(3), adhesive property is strong, good with low viscosity wellability, and infiltration basis simultaneously, crosslinks to react and be linked together with Upper Pavement with part functional group with binder；(4), there is flexibility, shock resistance is more preferably；(5), normal temperature cure system is convenient for construction.
Description
Technical field
The present invention relates to a kind of binders, more particularly, to a kind of polyurethane adhesive and preparation method thereof.
Background technique
In paving bridge floor field, either on the basis of Steel Bridge Deck or concrete bridge deck, modified polyurethane concrete
Mating formation as a kind of emerging thermoset macromolecule material has the advantages such as high-intensitive and high life.It is matched, it needs to develop
One kind can have with basis preferable cementitiousness and with the crosslinking ability of structure sheaf modified polyurethane concrete, simultaneously need
Have many advantages, such as low viscosity, high tenacity, anti-aging, low chlorine ion transmitance binder, so that this layer of water-proof binding coating
Chloride Attack can also be resisted while cracking can not occur enduringly to fall off or aging, and connect double-layer structure.
Summary of the invention
First technical problem to be solved by this invention is to provide a kind of waterproof performance for above-mentioned state of the art
With adhesive property is strong, impact resistance more preferably polyurethane adhesive.
Second technical problem to be solved by this invention is to provide a kind of above-mentioned poly- ammonia for above-mentioned state of the art
The preparation method of ester binder.
The present invention solves technical solution used by above-mentioned first technical problem are as follows: the polyurethane adhesive, feature
Be: each component is as follows according to the mass fraction:
420~440 parts of bisphenol A type epoxy resin；
130~150 parts of acrylic acid；
0.1~0.3 part of hydroquinone；
60-100 parts of toluene di-isocyanate(TDI)；
0.2~0.4 part of dispersing agent；
0.2~0.4 part of defoaming agent；
100-200 parts of diluent.
The bisphenol A type epoxy resin is 431 parts, and the acrylic acid is 144 parts, and the dispersing agent is 0.3 part, described to disappear
Infusion is 0.3 part.
The present invention solves technical solution used by above-mentioned second technical problem are as follows: a kind of preparation of polyurethane adhesive
Method, it is characterised in that include the following steps:
1., bisphenol A type epoxy resin put into reaction kettle, stirring is warming up to 80~100 DEG C, and hydroquinone, drop is added
Add acrylic acid, 115~125 DEG C are warming up to after being added dropwise to complete, when reaction acid value drops to 7~10mgKOH/g, cooling, temperature is protected
It holds between 55~65 DEG C；
2., toluene di-isocyanate(TDI) and dispersing agent, defoaming agent is at the uniform velocity added, keep reaction temperature to be higher than at 60~65 DEG C,
Dilution dilution agent is added when-nco value reaches the 75~85% of theoretical value in reaction 2~2.5 hours, measurement-nco value；
3., in use, using cyclohexanone peroxide and cobalt accelerator system or benzoyl peroxide and N, N- dimethyl benzene
Amine system, 20~30 DEG C of room temperature solidifications.
Above-mentioned steps 1. in, stirring is warming up to 90 DEG C, benzenediol be added and is added dropwise after acrylic acid be warming up to 120 DEG C, also,
When reaction acid value drops to 7~10mgKOH/g, cooling, it is best that temperature, which is maintained between 60 DEG C,；Step 2. in reach when-nco value
To theoretical value 80% when, be added dilution dilution agent；Step 3. in be usually 25 DEG C of room temperature solidification.
Steel bridge deck is protected in order to reach sacrificed anticathode antisepsis, adds quality into step 3. binder obtained
The zinc powder that score is 5-10um not less than 80%, average grain diameter, the stirring of the side Bian Tianjia.
Further preferably, the metal Zn content of the zinc powder is higher than 97%.
Compared with the prior art, the advantages of the present invention are as follows: (1), the polyurethane adhesive and steel plate adhesion strength can be with
Reach 10MPa or more, can achieve 2MPa or more with Concrete Bond Strength, and can be in conjunction with modified polyurethane concrete
Cross-linking reaction is expected；(2), waterproof performance is strong, and chloride ion transmitance is less than 100 coulombs in entire product structure 6 hours；(3), it glues
It is strong to tie performance, good with low viscosity wellability, infiltration basis simultaneously, is crosslinked with binder with part functional group and reacted and upper layer
Mat formation and is linked together；(4), compared with Natural ethylene base ester resin, flexibility is had more, shock resistance is more preferably；(5), normal temperature cure
System is convenient for construction.
Specific embodiment
The each component mass fraction of polyurethane adhesive in the present embodiment is as follows:
420~440 parts of bisphenol A type epoxy resin；
130~150 parts of acrylic acid；
0.1~0.3 part of hydroquinone；
60-100 parts of toluene di-isocyanate(TDI)；
0.2~0.4 part of dispersing agent；
0.2~0.4 part of defoaming agent；
100-200 parts of diluent.
Wherein, the following component in said components can take following optimal value: bisphenol A type epoxy resin is 431 parts, propylene
Acid is 144 parts, and dispersing agent is 0.3 part, and defoaming agent is 0.3 part.
In addition, dispersing agent is high molecular weight acrylic ester, the main component of defoaming agent is polyether ester, the main component of diluent
For toluene.Shown in table 1 specific as follows:
1 experimental drug of table
The preparation method of the polyurethane adhesive of the present embodiment, includes the following steps:
1., bisphenol A type epoxy resin put into reaction kettle, stirring is warming up to 80~100 DEG C, and hydroquinone, drop is added
Add acrylic acid, 115~125 DEG C are warming up to after being added dropwise to complete, when reaction acid value drops to 7~10mgKOH/g, cooling, temperature is protected
It holds between 55~65 DEG C；
2., toluene di-isocyanate(TDI) and dispersing agent, defoaming agent is at the uniform velocity added, keep reaction temperature to be higher than at 60~65 DEG C,
Dilution dilution agent is added when-nco value reaches the 75~85% of theoretical value in reaction 2~2.5 hours, measurement-nco value；
3., in use, using cyclohexanone peroxide and cobalt accelerator system or benzoyl peroxide and N, N- dimethyl benzene
Amine system, 20~30 DEG C of room temperature solidifications.
The optimal value of the preparation method is as follows:
Above-mentioned steps 1. in, stirring is warming up to 90 DEG C, benzenediol be added and is added dropwise after acrylic acid be warming up to 120 DEG C, also,
When reaction acid value drops to 7~10mgKOH/g, cooling, it is best that temperature, which is maintained between 60 DEG C,；Step 2. in reach when-nco value
To theoretical value 80% when, be added dilution dilution agent；Step 3. in be usually 25 DEG C of room temperature solidification.
Wherein, NCO refers to isocyanate group in chemical material ,-nco value refer to isocyanates contained by 100g sample (-
NCO) the quality of group.
In addition, by step, 3. binder obtained can also add zinc powder, and the mass fraction of zinc powder is not less than 80%, puts down
The zinc powder that equal partial size is 5-10um, the side Bian Tianjia stirring, there is not allowed that agglomerating, being unevenly distributed phenomenon.The purity requirement of zinc powder are as follows:
The metal Zn content of zinc powder is higher than 97%.
It is as follows by polyurethane adhesive performance parameter made from above-mentioned steps:
When implementation, concrete or Steel Bridge Deck basis need to keep drying, and the brushing amount of the polyurethane adhesive is 0.1-
0.5kg/m2。
Claims (5)
1. a kind of polyurethane adhesive, it is characterised in that: each component is as follows according to the mass fraction:
420~440 parts of bisphenol A type epoxy resin；
130~150 parts of acrylic acid；
0.1~0.3 part of hydroquinone；
60-100 parts of toluene di-isocyanate(TDI)；
0.2~0.4 part of dispersing agent；
0.2~0.4 part of defoaming agent；
100-200 parts of diluent.
2. polyurethane adhesive according to claim 1, it is characterised in that: the bisphenol A type epoxy resin is 431 parts,
The acrylic acid is 144 parts, and the dispersing agent is 0.3 part, and the defoaming agent is 0.3 part.
3. a kind of preparation method of polyurethane adhesive as described in claim 1, it is characterised in that include the following steps:
1., bisphenol A type epoxy resin put into reaction kettle, stirring is warming up to 80~100 DEG C, and hydroquinone is added, and is added dropwise third
Olefin(e) acid is warming up to 115~125 DEG C after being added dropwise to complete, when reaction acid value drops to 7~10mgKOH/g, cooling, temperature is maintained at
Between 55~65 DEG C；
2., toluene di-isocyanate(TDI) and dispersing agent, defoaming agent is at the uniform velocity added, keep reaction temperature to be higher than the reaction 2 at 60~65 DEG C
~2.5 hours, dilution dilution agent was added when-nco value reaches the 75~85% of theoretical value in measurement-nco value；
3., in use, using cyclohexanone peroxide and cobalt accelerator system or benzoyl peroxide and n,N-Dimethylaniline body
System, 20~30 DEG C of room temperature solidifications.
4. the preparation method of polyurethane adhesive according to claim 3, it is characterised in that: bonded toward step is 3. obtained
The zinc powder that mass fraction is 5-10um not less than 80%, average grain diameter, the stirring of the side Bian Tianjia are added in agent.
5. the preparation method of polyurethane adhesive according to claim 4, it is characterised in that: the metallic zinc of the zinc powder contains
Amount is higher than 97%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910083462.7A CN109810668A (en) | 2019-01-29 | 2019-01-29 | A kind of polyurethane adhesive and preparation method thereof |
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| CN201910083462.7A CN109810668A (en) | 2019-01-29 | 2019-01-29 | A kind of polyurethane adhesive and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110130559A (en) * | 2019-06-20 | 2019-08-16 | 宁波路宝科技实业集团有限公司 | A kind of resin concrete anti-cracking structure and its implementation method |
| CN111057505A (en) * | 2019-12-25 | 2020-04-24 | 常州华日升反光材料有限公司 | Special pressure-sensitive adhesive for cement surface prism film and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3510439A (en) * | 1967-12-01 | 1970-05-05 | Gen Motors Corp | Structural adhesives |
| CN101675089A (en) * | 2007-04-27 | 2010-03-17 | 日本化药株式会社 | (meth)acrylate compound, resin composition containing the same, cured product of the resin composition, and energy ray-curable resin composition for optical lens sheet and cured product thereof |
| CN101824137A (en) * | 2010-04-14 | 2010-09-08 | 宜兴市宏博乳化剂有限公司 | Modified bisphenol A epoxy acrylate and preparation method thereof |
| CN104607377A (en) * | 2015-02-04 | 2015-05-13 | 广东美的暖通设备有限公司 | Metal tank for air conditioner outdoor unit and anti-corrosion treatment process of metal tank |
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2019
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3510439A (en) * | 1967-12-01 | 1970-05-05 | Gen Motors Corp | Structural adhesives |
| CN101675089A (en) * | 2007-04-27 | 2010-03-17 | 日本化药株式会社 | (meth)acrylate compound, resin composition containing the same, cured product of the resin composition, and energy ray-curable resin composition for optical lens sheet and cured product thereof |
| CN101824137A (en) * | 2010-04-14 | 2010-09-08 | 宜兴市宏博乳化剂有限公司 | Modified bisphenol A epoxy acrylate and preparation method thereof |
| CN104607377A (en) * | 2015-02-04 | 2015-05-13 | 广东美的暖通设备有限公司 | Metal tank for air conditioner outdoor unit and anti-corrosion treatment process of metal tank |
Non-Patent Citations (4)
| Title |
|---|
| 张耀明等: "《玻璃纤维与矿物棉全书》", 31 March 2001 * |
| 李广宇等: "《胶黏剂原材料手册》", 31 August 2004 * |
| 植村益次: "《纤维增强塑料设计手册》", 31 March 1986 * |
| 车剑飞等: "《复合材料及其工程应用》", 31 August 2006 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110130559A (en) * | 2019-06-20 | 2019-08-16 | 宁波路宝科技实业集团有限公司 | A kind of resin concrete anti-cracking structure and its implementation method |
| CN111057505A (en) * | 2019-12-25 | 2020-04-24 | 常州华日升反光材料有限公司 | Special pressure-sensitive adhesive for cement surface prism film and preparation method thereof |
| CN111057505B (en) * | 2019-12-25 | 2021-12-24 | 常州华日升反光材料有限公司 | Special pressure-sensitive adhesive for cement surface prism film and preparation method thereof |
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