CN107216842B - Double-component polyaspartic acid ester urea hard adhesive and use method and application thereof - Google Patents
Double-component polyaspartic acid ester urea hard adhesive and use method and application thereof Download PDFInfo
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- CN107216842B CN107216842B CN201710634179.XA CN201710634179A CN107216842B CN 107216842 B CN107216842 B CN 107216842B CN 201710634179 A CN201710634179 A CN 201710634179A CN 107216842 B CN107216842 B CN 107216842B
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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
- C09J175/02—Polyureas
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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
- C08G18/30—Low-molecular-weight compounds
- C08G18/38—Low-molecular-weight compounds having heteroatoms other than oxygen
- C08G18/3819—Low-molecular-weight compounds having heteroatoms other than oxygen having nitrogen
- C08G18/3821—Carboxylic acids; Esters thereof with monohydroxyl compounds
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Abstract
The invention belongs to the field of preparation of adhesives, and relates to a double-component polyaspartic acid ester urea hard adhesive and a using method and application thereof, wherein the adhesive consists of a main agent component A and a curing agent component B; the component A comprises: 80-95 parts by weight of polyaspartic acid ester; 0.1-0.5 parts by weight of a base material wetting agent; 2-5 parts by weight of oxazolidine water absorbent; 5-10 parts by weight of a plasticizer; 0.1-0.5 part by weight of a defoaming agent; the equivalent ratio of the component B to the component A is equal; the curing agent consists of HDI tripolymer and hydroxyl resin modified curing agent, and the weight ratio of the HDI tripolymer to the hydroxyl resin modified curing agent is 10-30: 70-90. The asphalt base material and the inorganic anti-skid aggregate can be well bonded, the problem of poor ultraviolet aging resistance of the existing polyurethane and epoxy materials is solved, the ultraviolet aging resistance is good, the curing speed of the asparagus resin and the curing agent is high, sufficient operation time and rapid curing are ensured, and the short-term sealing and releasing of roads are met.
Description
Technical Field
The invention belongs to the field of preparation of adhesives, and particularly relates to a double-component polyaspartic acid ester urea hard adhesive, a using method thereof, and an application of the double-component polyaspartic acid ester urea hard adhesive to colored anti-skid pavements, wherein the double-component polyaspartic acid ester urea hard adhesive is used as an adhesive for anti-skid colored sand, ceramic particles and basic concrete or asphalt base surfaces.
Background
The colored antiskid pavement is mainly applied to the road environments requiring high-friction speed reduction and skid resistance, such as bus stations, sharp turns on roads, ramps for getting on and off bridges and the like. The main method is that a layer of adhesive with the thickness of about 1-2mm is firstly paved on the road surface, and then a layer of ceramic or other hard aggregates with the size of 2-5mm is immediately scattered. After the adhesive is naturally cured, the aggregate is fixed and connected with the road into a whole, and the effect of improving the friction coefficient is achieved by virtue of the large-particle aggregate with the convex surface.
At present, 3 materials are mainly used as the adhesive, one is a two-component polyurethane adhesive which is prepared by matching polyester and polyether polyol with a polymeric MDI curing agent, one is a common solvent-free self-leveling epoxy material, and the other is a MMA adhesive which is prepared by polymerizing active acrylic resin in a prepolymerization manner and initiating polymerization through peroxide, but the three adhesives have some problems in the actual use process and are limited in use. Although the polyurethane adhesive has high strength and good heat resistance and is widely used, the ultraviolet aging resistance of the material is poor due to the fact that the polymeric MDI is used as a curing agent, the service life is short, and in order to prolong the service life, a layer of ultraviolet-resistant finish paint is required to be coated on the ceramic particles as a protective layer, so that the construction difficulty is increased; the ultraviolet aging resistance of the epoxy material is poorer than that of polyurethane, the brittleness is high, and the epoxy material is easy to crack and damage in a low-temperature environment; the MMA adhesive has good weather resistance and long service life, but has the problem of poor workability, because the reaction is free radical chain type growth, the reaction speed is high, the adjustability is poor, gelling scrap is easily caused, the construction requirement is strict, the construction efficiency is low, and the MMA monomer is adopted as an active diluent, so that the MMA adhesive has large smell and large toxicity, and the application is far less than that of polyurethane and epoxy. The solvent-free polyaspartic acid ester resin is matched with the aliphatic isocyanate curing agent to be used as the adhesive, and the operation performance with adjustable construction time can be obtained by adjusting the type of the resin and the type of the curing agent, and the novel anti-skid pavement adhesive material has high bonding strength and excellent weather resistance and ultraviolet aging resistance.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the bottleneck of the prior art, and provide a preparation method and application of the polyaspartic acid ester urea hard adhesive.
In order to solve the technical problems, the invention discloses a double-component polyaspartic acid ester urea hard adhesive which is composed of a main agent component A and a curing agent component B;
wherein, the component A comprises:
wherein, the curing agent B component and the main agent A component have equivalent weight:
the curing agent is composed of an HDI trimer and a resin modified curing agent, and the weight ratio of the HDI trimer to the resin modified curing agent is 10-30: 70-90.
Preferably, the polyaspartic acid ester resin is at least one of N, N ' - (methylenebis-4, 1-cyclohexanediyl) tetraacethyl-aspartate, N ' - (methylenebis- (1-methyl, -4, 1-cyclohexanediyl)) tetraacethyl-aspartate, and N, N ' - (α - (2-aminomethylethyl) -omega- (2-aminomethylethoxy) polyoxy (methyl-1, 2-ethylidene) diyl) tetraacethyl-aspartate.
Preferably, the plasticizer is one of tributyl citrate, diisopropyl 1, 2-cyclohexane-dicarboxylic acid and the like.
Preferably, the resin modified curing agent is one or more of a resin modified HDI curing agent, a resin modified IPDI curing agent and a resin modified HMDI curing agent.
Preferably, the resin modified curing agent is one of low-viscosity solvent-free polyester polyol, polyether polyol and poly PC L hydroxyl resin, and is prepared by carrying out prepolymerization reaction on the resin modified curing agent and one of IPDI, HMDI and HDI, wherein the NCO content of the resin modified curing agent is 4-15%.
Preferably, the mass fraction of NCO in the resin modified curing agent is 4-15%.
The invention also discloses a using method of the double-component polyaspartic acid ester urea hard adhesive, which comprises the following steps: and (2) uniformly mixing and stirring the component A and the component B according to the corresponding parts by weight, troweling the mixture on the surface of asphalt until the thickness of the mixture is 1-1.5 mm, then quickly spreading wear-resistant aggregate with the particle size of 1-5 mm until the adhesive is completely covered, and after the adhesive is completely cured, sweeping off the aggregate which is not adhered completely for recycling.
The invention also discloses application of the double-component polyaspartic acid ester urea hard adhesive in the field of colored anti-skid pavements, which is characterized by being specifically used as an adhesive for anti-skid colored sand, ceramic particles and basic concrete or asphalt base surfaces.
Compared with the prior art, the technical scheme of the invention has the following advantages:
1) the solvent-free environment-friendly product has more than 98 percent of solid content, does not contain heavy metal, adopts an environment-friendly plasticizer and has no toxicity.
2) Good construction operability. The pavement can be normally constructed in an environment with the temperature of 50 ℃.
3) The adhesive strength of the adhesive is good, the adhesive strength of the adhesive and an asphalt base surface can reach 10MPa, the aggregate is firmly bonded, and the adhesive is not easy to fall off.
4) Good low-temperature cracking resistance, no cracking when a paint film with the thickness of 1mm is folded in half at the temperature of-20 ℃, and normal use in the low-temperature environment in the north can be ensured.
5) Good UV aging resistance. The paint film can well resist sunlight irradiation when used outdoors, thereby being aged and pulverized, and the service life can reach 5 to 8 years.
Detailed Description
Examples
Embodiment 1 this embodiment discloses a two-component polyaspartic acid ester urea hard adhesive, which comprises the following components:
the formula of the component A is as follows:
90.2 parts by weight of N, N' - (methylenebis-4, 1-cyclohexanediyl) tetraacetate;
the component B is equal to the component A, and comprises trimer curing agent Bayer 3900, HMDI modified curing agent and IPDI modified curing agent, and the weight ratio of the trimer curing agent to the component A is 22: 38:40.
Wherein the HMDI modified curing agent is synthesized by dripping 100g of HMDI, 50075 g of PC L50075, controlling the temperature to 80 ℃ for reaction for 4hr, then heating to 90 ℃ for reaction for 4hr, and discharging after the NCO content is detected to be 11.1%.
The IPDI modified curing agent is prepared by adding 100g of IPDI dropwise with PPG 1000225 g, and reacting to NCO content: 5.8% of the material is discharged.
The embodiment also discloses a using method of the double-component polyaspartic acid ester urea hard adhesive, which comprises the following steps: and (2) uniformly mixing and stirring the component A and the component B according to the corresponding parts by weight, troweling the mixture on the surface of asphalt until the thickness of the mixture is 1-1.5 mm, then quickly spreading wear-resistant aggregate with the particle size of 1-5 mm until the wear-resistant aggregate completely covers the adhesive, and after curing is finished, sweeping away the aggregate which does not adhere, and recycling the aggregate.
The embodiment also discloses application of the double-component polyaspartic acid ester urea hard adhesive in the field of colored anti-skid pavements, which is characterized in that the double-component polyaspartic acid ester urea hard adhesive is specifically used as an adhesive for anti-skid colored sand, ceramic particles and basic concrete or asphalt base surfaces.
Embodiment 2 discloses a two-component polyaspartic acid ester urea hard adhesive, which comprises the following components in parts by weight:
the formula of the component A is as follows:
90.2 parts by weight of tetrabutyl N, N' - (methylenebis-4, 1-cyclohexanediyl) diarpase;
the component B is equal to the component A, and comprises trimer curing agent Bayer 3900 and HMDI modified curing agent, wherein the weight ratio of the component B to the component A is 22: 78, a nitrogen source;
wherein the HMDI modified curing agent is synthesized by adding 100g of HMDI, dripping PPG 2000100 g, and PPG 40060 g to react under the temperature control condition until the NCO content: 6.2 percent and discharging to obtain the product.
The embodiment also discloses a using method of the double-component polyaspartic acid ester urea hard adhesive, which comprises the following steps: and (2) uniformly mixing and stirring the component A and the component B according to the corresponding parts by weight, troweling the mixture on the surface of asphalt until the thickness of the mixture is 1-1.5 mm, then quickly spreading wear-resistant aggregate with the particle size of 1-5 mm until the wear-resistant aggregate completely covers the adhesive, and after curing is finished, sweeping away the aggregate which does not adhere, and recycling the aggregate.
The embodiment also discloses application of the double-component polyaspartic acid ester urea hard adhesive in the field of colored anti-skid pavements, which is characterized in that the double-component polyaspartic acid ester urea hard adhesive is specifically used as an adhesive for anti-skid colored sand, ceramic particles and basic concrete or asphalt base surfaces.
Embodiment 3 this embodiment discloses a two-component polyaspartic acid ester urea hard adhesive, which comprises the following components:
the formula of the component A is as follows:
80 parts by weight of N, N' - (methylenebis- (1-methyl, -4, 1-cyclohexanediyl)) tetraacetate;
the component B is equal to the component A, and comprises trimer curing agent Bayer 3900 and HMDI modified curing agent, wherein the weight ratio of the component B to the component A is 10: 90, respectively;
wherein the HMDI modified curing agent is synthesized by adding 100g of HMDI, dripping PPG 2000100 g, and PPG 40060 g to react under the temperature control condition until the NCO content: 15 percent, and discharging to obtain the product.
The embodiment also discloses a using method of the double-component polyaspartic acid ester urea hard adhesive, which comprises the following steps: and (2) uniformly mixing and stirring the component A and the component B according to the corresponding parts by weight, troweling the mixture on the surface of asphalt until the thickness of the mixture is 1-1.5 mm, then quickly spreading wear-resistant aggregate with the particle size of 1-5 mm until the wear-resistant aggregate completely covers the adhesive, and after curing is finished, sweeping away the aggregate which does not adhere, and recycling the aggregate.
The embodiment also discloses application of the double-component polyaspartic acid ester urea hard adhesive in the field of colored anti-skid pavements, which is characterized in that the double-component polyaspartic acid ester urea hard adhesive is specifically used as an adhesive for anti-skid colored sand, ceramic particles and basic concrete or asphalt base surfaces.
Embodiment 4 discloses a two-component polyaspartic acid ester urea hard adhesive, which comprises the following components in parts by weight:
the formula of the component A is as follows:
the component B is equal to the component A, and comprises a trimer curing agent Bayer 3900 and an HMDI modified curing agent, wherein the weight ratio of the component B to the component A is 30: 70;
wherein the HMDI modified curing agent is synthesized by adding 100g of HMDI, dripping PPG 2000100 g, and PPG 40060 g to react under the temperature control condition until the NCO content: 4 percent, and discharging to obtain the product.
The embodiment also discloses a using method of the double-component polyaspartic acid ester urea hard adhesive, which comprises the following steps: and (2) uniformly mixing and stirring the component A and the component B according to the corresponding parts by weight, troweling the mixture on the surface of asphalt until the thickness of the mixture is 1-1.5 mm, then quickly spreading wear-resistant aggregate with the particle size of 1-5 mm until the wear-resistant aggregate completely covers the adhesive, and after curing is finished, sweeping away the aggregate which does not adhere, and recycling the aggregate.
The embodiment also discloses application of the double-component polyaspartic acid ester urea hard adhesive in the field of colored anti-skid pavements, which is characterized in that the double-component polyaspartic acid ester urea hard adhesive is specifically used as an adhesive for anti-skid colored sand, ceramic particles and basic concrete or asphalt base surfaces.
The adhesives described in the examples are compared with adhesives of the epoxy, polyurethane and MMA type in table 1:
TABLE 1
| Contrast item | Polyurethane adhesive | Epoxy adhesive | MMA adhesive | The invention |
| Smell(s) | Is low in | Is low in | Big (a) | Is low in |
| Volatile toxicity | In | Is low in | Big (a) | Is low in |
| Workability | In | Good wine | Difference (D) | Good wine |
| Actual drying time hr | 4～6 | 15～20 | ＜1 | 4～6 |
| Resistance to Low temperature cracking | Good wine | Difference (D) | Good wine | Good wine |
| Adhesive strength MPa | 5～10MPa | 5～10MPa | 3～5MPa | 5～10MPa |
| UV aging resistance | Difference (D) | Worst case | Good wine | Good wine |
The results in the table show that the material of the present invention has very excellent comprehensive performance, and can make up for the defects of the traditional material in some aspects to obtain the best application effect.
F420 has a fast reaction speed and good bonding strength, and the resin modified IPDI curing agent has a slow reaction speed, is matched with the HDI tripolymer which has a fast reaction speed for use, and can adjust the appropriate service time.
The adhesive material prepared by the embodiment can well bond asphalt (concrete) and inorganic aggregate, has good construction performance, solves the problem of poor ultraviolet aging resistance of the existing polyurethane and epoxy materials, and prolongs the service life. The polyaspartic acid ester resin is aliphatic secondary amine substance, the curing agent is also aliphatic isocyanate compound, which ensures good ultraviolet aging resistance when matched with the polyaspartic acid ester resin, and the curing speed of the polyaspartic acid ester resin and the curing agent is higher, but can be adjusted to ensure enough operation time and fast curing speed so as to deal with short closure and release of roads.
The main component of the adhesive material prepared in this embodiment is N, N' - (methylenebis-4, 1-cyclohexanediyl) tetraacetate; n, N' - (methylene di-4, 1-cyclohexanediyl) diaspartic acid tetrabutyl ester and the like are used as main materials, a small amount of base material wetting agent, oxazolidine water absorbent, environment-friendly plasticizer and the like are matched to form the curing agent component, and the curing agent component is formed by mixing HDI tripolymer and resin modified HDI (IPDI, HMDI) type curing agent, so that good construction operability is obtained. The N, N' - (methylene di-4, 1-cyclohexanediyl) tetraacetylaspartate has a fast reaction speed and good bonding strength, and the resin modified IPDI curing agent has a slow reaction speed and can be matched with an HDI tripolymer which has a fast reaction speed for use, so that the appropriate usable time can be adjusted. A certain amount of environment-friendly plasticizer such as tributyl citrate, diisopropyl 1, 2-cyclohexane-dicarboxylic acid and the like is added into the formula, so that the viscosity of the system is reduced, and a volatile solvent and an o-benzene plasticizer are avoided.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (5)
1. The double-component polyaspartic acid ester urea hard adhesive is characterized by comprising a main agent component A and a curing agent component B;
wherein, the component A comprises:
wherein, the component B is matched with the component A in an equivalent way;
the curing agent is composed of an HDI trimer and a hydroxyl resin modified curing agent, and the weight ratio of the HDI trimer to the hydroxyl resin modified curing agent is 10-30: 70-90;
the hydroxyl resin modified curing agent is a resin modified curing agent with the NCO mass fraction content of 4-15% obtained by performing prepolymerization reaction on one of low-viscosity solvent-free polyester polyol, polyether polyol and poly PC L hydroxyl resin and one of a resin modified HDI type curing agent, a resin modified IPDI type curing agent and a resin modified HMDI type curing agent.
2. The two-part polyaspartate urea rigid adhesive of claim 1 wherein the polyaspartate resin is at least one of N, N ' - (methylenebis-4, 1-cyclohexanediyl) tetraaspartate, N ' - (methylenebis- (1-methyl, -4, 1-cyclohexanediyl)) tetraaspartate, N ' - (α - (2-aminomethylethyl) - ω - (2-aminomethylethoxy) polyoxy (methyl-1, 2-ethylidene) diyl) tetraaspartate.
3. The two-component polyaspartate urea hard adhesive of claim 2, wherein the plasticizer is one of tributyl citrate, diisopropyl 1, 2-cyclohexane-dicarboxylate, and the like.
4. A method of using the two-component polyaspartic acid ester urea hard adhesive according to any one of claims 1-3, wherein the method comprises the following steps: and (2) uniformly mixing and stirring the component A and the component B according to the corresponding parts by weight, troweling the mixture on the surface of asphalt until the thickness of the mixture is 1-1.5 mm, then quickly spreading wear-resistant aggregate with the particle size of 1-5 mm until the wear-resistant aggregate completely covers the adhesive, and after curing is finished, sweeping away the aggregate which does not adhere, and recycling the aggregate.
5. The application of the two-component polyaspartic acid ester urea hard adhesive as claimed in any one of claims 1 to 3 in the field of colored skid-proof pavements, wherein the application is particularly used as an adhesive for skid-proof colored sand, ceramic particles and base concrete or asphalt base surfaces.
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| CN110885658A (en) * | 2018-09-07 | 2020-03-17 | 刘韶锋 | Preparation method of two-component polyaspartic acid ester seam beautifying agent |
| CN110373114B (en) * | 2019-07-18 | 2021-06-25 | 中南林业科技大学 | Double-crosslinking high-performance water glass wood adhesive and preparation method thereof |
| CN110317528B (en) * | 2019-08-01 | 2021-05-14 | 深圳飞扬骏研新材料股份有限公司 | Seam beautifying agent |
| US20210039359A1 (en) * | 2019-08-08 | 2021-02-11 | Covestro Llc | Flexibilized polyurethanes for flexible packaging adhesive without aromatic amine migration |
| US20210040362A1 (en) * | 2019-08-08 | 2021-02-11 | Covestro Llc | Flexible polyureas for flexible packaging adhesive without aromatic amine migration |
| CN110845685B (en) * | 2019-12-12 | 2021-11-09 | 中国科学院长春应用化学研究所 | Polyaspartic acid ester and polyurea-based repairing material for repairing polyurethane foam of automobile instrument panel, and preparation method and repairing method thereof |
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Effective date of registration: 20200703 Address after: 518000 Baoan District, Xin'an, Guangdong, Shenzhen, Xin'an road 269, 1 crown 301-47 building Applicant after: SHENZHEN FEIYANG SPECIAL CHEMICAL NEW MATERIAL Co.,Ltd. Address before: 518000, Guangdong City, Baoan District province Xin'an Shenzhen street, Xian Xian two road flying Industrial Science and technology plant, B building, nine floor Applicant before: SHENZHEN FEIYANG JUNYAN NEW MATERIAL Co.,Ltd. |
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