CN111849148A - Polyurethane elastic damping daub material - Google Patents
Polyurethane elastic damping daub material Download PDFInfo
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- CN111849148A CN111849148A CN202010731253.1A CN202010731253A CN111849148A CN 111849148 A CN111849148 A CN 111849148A CN 202010731253 A CN202010731253 A CN 202010731253A CN 111849148 A CN111849148 A CN 111849148A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
- C08L75/06—Polyurethanes from polyesters
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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
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction 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
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4236—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups
- C08G18/4238—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups derived from dicarboxylic acids and dialcohols
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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
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/73—Polyisocyanates or polyisothiocyanates acyclic
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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
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/75—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
- C08G18/751—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring
- C08G18/752—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group
- C08G18/753—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group
- C08G18/755—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group and at least one isocyanate or isothiocyanate group linked to a secondary carbon atom of the cycloaliphatic ring, e.g. isophorone diisocyanate
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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
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7614—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
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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
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
- C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
- C08G18/7671—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups containing only one alkylene bisphenyl group
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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
- C08G2350/00—Acoustic or vibration damping material
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- Chemical Kinetics & Catalysis (AREA)
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Abstract
The invention provides a polyurethane elastic damping daub material, wherein the component A of the material is a polyester polymethyl polyurethane prepolymer obtained by the reaction of polyester polyol and diisocyanate, the component B is a mixture consisting of a chain extender, a coupling agent, a filler and a catalyst, and the component A, B is mixed and cured at room temperature to obtain the polyurethane elastic damping daub material. The polyurethane elastic damping daub material provided by the invention is applied to vehicles, can provide better damping and shock absorption effects, and also expands the application range of the material. And the preparation method is simple, wide in application range, convenient to store and capable of realizing large-scale production. Compared with the organosilicon elastic damping daub, the polyurethane elastic damping daub material has better damping performance, high strength and loss resistance.
Description
Technical Field
The invention relates to the technical field of organic polymer materials, in particular to a polyurethane elastic damping material.
Background
The elastic damping daub material is a damping shock-absorbing material with excellent performance and is often applied to buffers of various vehicles. At present, the most commonly used damping and shock absorption material is organosilicon elastic daub, but the material has the defect of poor damping and shock absorption effect. In order to better absorb shock, reduce acting force borne by a vehicle during use and improve comfort feeling of people, damping materials with better performance need to be developed.
On the other hand, the polyurethane elastic daub is a block copolymer consisting of a soft segment consisting of polyether or polyester and a hard segment consisting of diisocyanate and a chain extender, and due to the special structure, the performance of the polyurethane elastic daub has the advantages of large adjustable range, high strength, good damping performance, loss resistance, tear resistance, good oil resistance and the like, and is widely applied to various fields. For example, chinese patent CN 105061723 a describes a polyurethane daub and a preparation method thereof, and the polyurethane daub is mainly used for corrosion prevention inside and outside marine vessels. Chinese patent CN 105348784A discloses a high-toughness acid-resistant high-temperature-resistant polyurethane glass flake daub and a preparation method thereof, which are mainly applied to wet Flue Gas Desulfurization (FGD) corrosion prevention of a thermal power plant. Chinese patent CN 105694796A discloses a polyurethane modified leaking stoppage daub for stopping leaking, which has the advantages of good toughness, difficult generation of cracks, high low-temperature curing speed and the like.
However, the damping performance of the polyurethane cement is not utilized in the above technical solutions, and there is only a fresh report that the polyurethane elastic cement is used as a damping and shock-absorbing material in vehicles.
Disclosure of Invention
The invention provides a polyurethane elastic damping daub material, which can overcome the defect of poor damping performance of organosilicon elastic daub, has better damping and shock absorption effects, is simple in preparation method, convenient to store and capable of being produced in a large scale.
The invention solves the technical problems through the following technical scheme,
a polyurethane elastic damping daub material is composed of a component A and a component B in a weight ratio of 2:1, wherein the component A is a polyester polyurethane prepolymer which is polymerized by polyester polyol and diisocyanate in a molar ratio of 1: 2-2.2; the component B comprises a chain extender, a coupling agent, a filler and a catalyst.
The polyurethane elastic damping daub material is characterized in that the polyester polyol is at least one of poly neopentyl glycol succinate, poly neopentyl glycol adipate, poly neopentyl glycol hydroxypivalate adipate or poly neopentyl glycol hydroxypivalate succinate, and the molecular weight of the polyester polyol is 3000-4000.
In the polyurethane elastic damping daub material, the diisocyanate is one or two of toluene diisocyanate, diphenylmethane diisocyanate, isophorone diisocyanate, hexamethylene diisocyanate or xylylene diisocyanate.
The usage amount of the chain extender is 1-4 parts by mass;
the amount of the coupling agent is 0.1-0.3 parts by mass;
the filler comprises a solid filler and a liquid filler, wherein the using amount of the solid filler is 26 parts, and the using amount of the liquid filler is 20-35 parts by mass;
the paint also comprises a solvent, wherein the using amount of the solvent is 20-30 parts by mass;
the amount of the catalyst is 0.1-0.2 parts by mass.
In the polyurethane elastic damping daub material, the chain extender is one of 1, 4-butanediol, hexanediol, 1, 2-propanediol, neopentyl glycol or trimethylolpropane; the coupling agent comprises any one of gamma-aminopropyltriethoxysilane, N-B- (aminoethyl) -gamma-aminopropyltrimethoxysilane or phenylaminomethyl trimethoxysilane;
the solid filler comprises wollastonite powder, graphite and white carbon black, and the mass ratio of the wollastonite powder to the graphite to the white carbon black is 3:6: 17; the liquid filler is one of liquid polybutene or liquid polybutadiene;
the catalyst is one of stannous acid, dibutyltin dilaurate, dioctyltin dilaurate and naphthenic acid;
the solvent is one of absolute ethyl alcohol or acetone.
The polyester polyurethane prepolymer is polymerized from polyester polyol and diisocyanate according to the molar ratio of 1: 2.1;
the polyurethane elastic damping daub material is characterized in that the component A is prepared according to the following steps:
a. adding polyester polyol into a four-mouth bottle provided with a stirrer and a thermometer, dehydrating for 2-2.5 h at 110-140 ℃ under the vacuum-0.096 MPa, then cooling to 50 ℃, adding diisocyanate, slowly heating to 80 +/-5 ℃, reacting for 2-3 h, vacuum degassing at 85-90 ℃ under the vacuum-0.096 MPa to prepare a prepolymer, and sealing for later use;
b. the component B is prepared by the following steps:
adding the solid filler into the mixed solution of the coupling agent and the solvent, stirring by using a stirring rod, pouring into a stirrer, fully mixing for 10min, discharging, and drying in an oven at 140 ℃ for 30min to obtain the treated solid filler; adding the treated solid filler, chain extender, liquid filler and catalyst into a stirrer, mixing for 20min, discharging to obtain a component B, and sealing for later use;
c. a, B, and curing at room temperature for 5-10 min to obtain the polyurethane elastic damping daub material.
The beneficial effects are as follows:
compared with the prior art, the polyurethane elastic damping daub material provided by the invention is composed of A, B bi-components. Due to the molecular structure design, a large number of side methyl structures are introduced into the molecular chain of the polyurethane prepolymer, so that the internal friction among molecules in the chain segment movement process can be increased, and the damping performance of the polyurethane prepolymer is greatly improved. In order to further improve the performance of the polyurethane elastic damping daub, the invention further optimizes the filler, adds the optimized filler into the polyurethane elastic damping daub, reduces the surface tension, improves the compatibility between the polymer and the filler, and leads the filler to be dispersed more uniformly. Meanwhile, in the use process, when the material is stressed, enough friction can be generated between the polymer and the filler in the material and between particles of the filler, mechanical energy is converted into internal energy, and the damping performance of the material is further improved.
The polyurethane elastic damping daub material provided by the invention is applied to traffic engineeringIn the utensil, can provide better damping shock attenuation effect, also expanded the application range of material simultaneously. And the preparation method is simple, wide in application range, convenient to store and capable of realizing large-scale production. Compared with the organosilicon elastic damping daub, the polyurethane elastic damping daub material has better damping performance. Maximum loss factor tan of the inventionmaxUp to 1.9, the maximum loss factor tan of the conventional organosilicon elastic damping daubmaxAround 1.
Detailed Description
The following examples further illustrate the embodiments of the present invention in detail.
Example 1:
a. preparing a component A: adding 100g of neopentyl glycol succinate with the molecular weight of 3000 into a four-mouth bottle with a stirrer and a thermometer, dehydrating for 2 hours at the temperature of 110-140 ℃ under the vacuum-0.096 MPa, then cooling to 50 ℃, adding 12.2g of toluene diisocyanate, slowly heating to 80 +/-5 ℃ to react for 2.5 hours, vacuum degassing at the temperature of 85-90 ℃ under the vacuum-0.096 MPa to prepare a prepolymer, and sealing for later use.
b. Preparing a component B: adding 3g of wollastonite powder, 6g of graphite and 17g of white carbon black into a mixed solution of 0.13g of gamma-aminopropyltriethoxysilane and 35g of absolute ethyl alcohol, fully stirring by using a stirring rod, pouring into a stirrer, fully mixing for 10min, discharging, and drying in an oven at 140 ℃ for 30min to obtain a treated solid filler; and adding the treated solid filler, 2.68g of 1, 4-butanediol, 27.3g of liquid polybutene and 0.12g of stannous octoate into a stirrer, mixing for 20min, discharging to obtain a component B, and sealing for later use.
c. Preparing a polyurethane elastic damping daub material: and mixing the component A and the component B, and curing at room temperature for 10min to obtain the polyurethane elastic damping daub material.
Example 2:
a. component A was prepared in the same manner as in example 1.
b. Preparing a component B: adding 3g of wollastonite powder, 6g of graphite and 17g of white carbon black into a mixed solution of 0.13g of gamma-aminopropyltriethoxysilane and 35g of absolute ethyl alcohol, fully stirring by using a stirring rod, pouring into a stirrer, fully mixing for 10min, discharging, and drying in an oven at 140 ℃ for 30min to obtain a treated solid filler; and adding the treated solid filler, 3.5g of hexanediol, 26g of liquid polybutene and 0.2g of dibutyltin dilaurate into a stirrer, mixing for 20min, discharging to obtain a component B, and sealing for later use.
c. Preparing a polyurethane elastic damping daub material: and mixing the component A and the component B, and curing at room temperature for 8min to obtain the polyurethane elastic damping daub material.
Example 3:
a. preparing a component A: adding 100g of poly (hydroxypivalyl adipate/pivalate) ester with the molecular weight of 3500 into a four-neck bottle provided with a stirrer and a thermometer, dehydrating for 2.5h at the temperature of 110-140 ℃ under the vacuum-0.096 MPa, then cooling to 50 ℃, adding 13.34g of isophorone diisocyanate, slowly heating to 80 +/-5 ℃ to react for 3h, vacuum degassing at the temperature of 85-90 ℃ under the vacuum-0.096 MPa to prepare a prepolymer, and sealing for later use.
b. Preparing a component B: adding 3g of wollastonite powder, 6g of graphite and 17g of white carbon black into a mixed solution of 0.13g of gamma-aminopropyltriethoxysilane and 35g of absolute ethyl alcohol, stirring by using a stirring rod, pouring into a stirrer, fully mixing for 10min, discharging, and drying in an oven at 140 ℃ for 30min to obtain a treated solid filler; and adding the treated solid filler, 2.63g of neopentyl glycol, 27.8g of liquid polybutadiene and 0.15g of stannous octoate into a stirrer, mixing for 20min, discharging to obtain a component B, and sealing for later use.
c. Preparing a polyurethane elastic damping daub material: and mixing the component A and the component B, and curing at room temperature for 10min to obtain the polyurethane elastic damping daub material.
Example 4:
a. preparing a component A: adding 100g of poly (hydroxypivalyl hydroxypivalate succinate) with the molecular weight of 4000 into a four-neck flask with a stirrer and a thermometer, dehydrating for 2.5h at the temperature of 110-140 ℃ and under the vacuum-0.096 MPa, then cooling to 50 ℃, adding 8.83g of hexamethylene diisocyanate, slowly heating to 80 +/-5 ℃ to react for 2h, and degassing under the vacuum conditions of 85-90 ℃ and-0.096 MPa to prepare a prepolymer, and sealing for later use.
b. Preparing a component B: adding 3g of wollastonite powder, 6g of graphite and 17g of white carbon black into a mixed solution of 0.13g of gamma-aminopropyltriethoxysilane and 35g of absolute ethyl alcohol, fully stirring by using a stirring rod, pouring into a stirrer, fully mixing for 10min, discharging, and drying in an oven at 140 ℃ for 30min to obtain a treated solid filler; adding the treated solid filler, 3.1g of trimethylolpropane, 25g of liquid polybutene and 0.15g of naphthenic acid into a stirrer, mixing for 20min, discharging to obtain a component B, and sealing for later use.
c. Preparing a polyurethane elastic damping daub material: and mixing the component A and the component B, and curing at room temperature for 10min to obtain the polyurethane elastic damping daub material.
Example 5
a. Component A was prepared in the same manner as in example 4.
b. Preparing a component B: adding 3g of wollastonite powder, 6g of graphite and 17g of white carbon black into a mixed solution of 0.2g of N-B- (aminoethyl) -gamma-aminopropyltrimethoxysilane and 40g of acetone, fully stirring by using a stirring rod, pouring into a stirrer, fully mixing for 10min, discharging, and drying in an oven at 140 ℃ for 30min to obtain a treated solid filler; adding the treated solid filler, 1.75g of 1, 2-propylene glycol, 26.25g of liquid polybutadiene and 0.2g of dibutyltin dilaurate into a stirrer, mixing for 20min, discharging to obtain a component B, and sealing for later use.
c. Preparing a polyurethane elastic damping daub material: and mixing the component A and the component B, and curing at room temperature for 10min to obtain the polyurethane elastic damping daub material.
Example 6
a. Preparing a component A: 100g of neopentyl glycol adipate with the molecular weight of 4000 is added into a four-mouth bottle provided with a stirrer and a thermometer, dehydration is carried out for 2h under the conditions of 110-140 ℃ and vacuum-0.096 MPa, then the temperature is reduced to 50 ℃, 13.14g of diphenylmethane diisocyanate is added, the temperature is slowly increased to 80 +/-5 ℃ for reaction for 2h, vacuum degassing is carried out under the conditions of 85-90 ℃ and-0.096 MPa, and a prepolymer is prepared and sealed for later use.
b. Preparing a component B: adding 3g of wollastonite powder, 6g of graphite and 17g of white carbon black into a mixed solution of 0.15g of phenylaminomethyl trimethoxy silane and 35g of absolute ethyl alcohol, fully stirring by using a stirring rod, pouring into a stirrer, fully mixing for 10min, discharging, and drying in an oven at 140 ℃ for 30min to obtain a treated solid filler; adding the treated solid filler, 2.97g of trimethylolpropane, 27.3g of liquid polybutene and 0.15g of dioctyltin dilaurate into a stirrer, mixing for 20min, discharging to obtain a component B, and sealing for later use.
c. Preparing a polyurethane elastic damping daub material: and mixing the component A and the component B, and curing at room temperature for 8min to obtain the polyurethane elastic damping daub material.
In the invention, the polyester type polyurethane prepolymer with a large number of side methyl groups in the molecular chain is adopted, so that the damping performance is excellent. The particle size of wollastonite powder in the solid filler is 19-30 um, the particle size of graphite is 20-40 um, the particle size of white carbon black is 30-40 nm, three solid fillers with different particle sizes are added, the friction area between particles is increased, after the material is stressed, enough and larger friction can be generated between the polymer and the filler inside the material and between the particles of the filler, mechanical energy is converted into internal energy, and the damping performance of the material is further improved. The addition of the liquid filler is beneficial to reducing the viscosity of the system, and simultaneously, the components are dispersed more uniformly, and the performance is more stable.
The properties of the polyurethane elastic damping daub material prepared by the method are shown in the following table:
the viscosity of the material is an important index of the elastic damping daub material, the low viscosity or the high viscosity is not favorable for use and operation, and when the viscosity is 4 multiplied by 106mPa·s～6×106mPas is the optimum viscosity for use. Maximum loss factor tanmaxDirectly reflects the damping properties of the material.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (7)
1. The polyurethane elastic damping daub material is characterized by being composed of a component A and a component B in a weight ratio of 2:1, wherein the component A is a polyester polyurethane prepolymer which is polymerized from polyester polyol and diisocyanate in a molar ratio of 1: 2-2.2; the component B comprises a chain extender, a coupling agent, a filler and a catalyst.
2. The polyurethane elastic damping cement material as claimed in claim 1, wherein the polyester polyol is at least one of neopentyl glycol polysuccinate, neopentyl glycol polyadipate, neopentyl glycol hydroxypivalate or neopentyl glycol hydroxypivalate polyactate, and the molecular weight of the polyester polyol is 3000-4000.
3. The polyurethane elastomeric damping mastic material of claim 2, wherein the diisocyanate is one or two of toluene diisocyanate, diphenylmethane diisocyanate, isophorone diisocyanate, hexamethylene diisocyanate or xylylene diisocyanate.
4. The polyurethane elastic damping mastic material of claim 2,
the using amount of the chain extender is 1-4 parts by mass;
the amount of the coupling agent is 0.1-0.3 parts by mass;
the filler comprises a solid filler and a liquid filler, wherein the using amount of the solid filler is 26 parts, and the using amount of the liquid filler is 20-35 parts by mass; the paint also comprises a solvent, wherein the using amount of the solvent is 20-30 parts by mass;
the amount of the catalyst is 0.1-0.2 parts by mass.
5. The polyurethane elastic damping mastic material of claims 1-4, wherein the chain extender is one of 1, 4-butanediol, hexanediol, 1, 2-propanediol, neopentyl glycol or trimethylolpropane; the coupling agent comprises any one of gamma-aminopropyltriethoxysilane, N-B- (aminoethyl) -gamma-aminopropyltrimethoxysilane or phenylaminomethyl trimethoxysilane;
the solid filler comprises wollastonite powder, graphite and white carbon black, and the mass ratio of the wollastonite powder to the graphite to the white carbon black is 3:6: 17; the liquid filler is one of liquid polybutene or liquid polybutadiene;
the catalyst is one of stannous acid, dibutyltin dilaurate, dioctyltin dilaurate and naphthenic acid;
the solvent is one of absolute ethyl alcohol or acetone.
6. The polyurethane elastic damping daub material as claimed in claim 5, wherein the polyester polyurethane prepolymer is polymerized from polyester polyol and diisocyanate in a molar ratio of 1: 2.1.
7. The polyurethane elastic damping mastic material of claim 6,
a. the component A is prepared by the following steps:
adding polyester polyol into a four-mouth bottle provided with a stirrer and a thermometer, dehydrating for 2-2.5 h at 110-140 ℃ under the vacuum-0.096 MPa, then cooling to 50 ℃, adding diisocyanate, slowly heating to 80 +/-5 ℃, reacting for 2-3 h, vacuum degassing at 85-90 ℃ under the vacuum-0.096 MPa to prepare a prepolymer, and sealing for later use;
b. the component B is prepared by the following steps:
adding the solid filler into the mixed solution of the coupling agent and the solvent, stirring by using a stirring rod, pouring into a stirrer, fully mixing for 10min, discharging, and drying in an oven at 140 ℃ for 30min to obtain the treated solid filler; adding the treated solid filler, chain extender, liquid filler and catalyst into a stirrer, mixing for 20min, discharging to obtain a component B, and sealing for later use;
c. a, B, and curing at room temperature for 5-10 min to obtain the polyurethane elastic damping daub material.
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| CN202010731253.1A CN111849148A (en) | 2020-07-27 | 2020-07-27 | Polyurethane elastic damping daub material |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112769075A (en) * | 2020-11-25 | 2021-05-07 | 国网电子商务有限公司 | Repairing method for overhead line insulating protective layer |
| CN113416410A (en) * | 2021-07-06 | 2021-09-21 | 佛山市协通橡塑制品有限公司 | Running board and preparation method thereof |
| CN113462146A (en) * | 2021-07-06 | 2021-10-01 | 佛山市协通橡塑制品有限公司 | Soft running board wearing layer |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101508762A (en) * | 2009-03-24 | 2009-08-19 | 河北省能源研究所 | Polyester type polyurethane damping material and preparation method |
| CN104725835A (en) * | 2015-04-07 | 2015-06-24 | 重庆大学 | Viscous-elastic material with significant changes in damping controlled by magnetic field |
| CN104927347A (en) * | 2015-06-12 | 2015-09-23 | 河北省科学院能源研究所 | High-damping mixing polyurethane damping material and preparation method thereof |
| CN105061723A (en) * | 2015-08-11 | 2015-11-18 | 北京海月星科技有限公司 | PU (polyurethane) daub and preparation method thereof |
| CN106700017A (en) * | 2016-12-23 | 2017-05-24 | 上海市合成树脂研究所有限公司 | Heat resistance and high hardness damping polyurethane elastomer material and preparation method thereof |
| CN106867391A (en) * | 2017-03-14 | 2017-06-20 | 青岛海洋新材料科技有限公司 | A kind of naval vessel spray coated flame retardant damping coatings material and its manufacture method |
| CN108034344A (en) * | 2017-11-30 | 2018-05-15 | 中国船舶重工集团公司第七二五研究所 | A kind of medium temperature wide temperature range polyurethane damping paint and preparation method thereof |
| CN108117631A (en) * | 2018-01-31 | 2018-06-05 | 青岛沙木新材料有限公司 | Casting type damping material |
| CN110698633A (en) * | 2019-10-25 | 2020-01-17 | 安徽贝卫新材料科技有限公司 | Hindered amine-containing polyurethane damping material and preparation method thereof |
-
2020
- 2020-07-27 CN CN202010731253.1A patent/CN111849148A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101508762A (en) * | 2009-03-24 | 2009-08-19 | 河北省能源研究所 | Polyester type polyurethane damping material and preparation method |
| CN104725835A (en) * | 2015-04-07 | 2015-06-24 | 重庆大学 | Viscous-elastic material with significant changes in damping controlled by magnetic field |
| CN104927347A (en) * | 2015-06-12 | 2015-09-23 | 河北省科学院能源研究所 | High-damping mixing polyurethane damping material and preparation method thereof |
| CN105061723A (en) * | 2015-08-11 | 2015-11-18 | 北京海月星科技有限公司 | PU (polyurethane) daub and preparation method thereof |
| CN106700017A (en) * | 2016-12-23 | 2017-05-24 | 上海市合成树脂研究所有限公司 | Heat resistance and high hardness damping polyurethane elastomer material and preparation method thereof |
| CN106867391A (en) * | 2017-03-14 | 2017-06-20 | 青岛海洋新材料科技有限公司 | A kind of naval vessel spray coated flame retardant damping coatings material and its manufacture method |
| CN108034344A (en) * | 2017-11-30 | 2018-05-15 | 中国船舶重工集团公司第七二五研究所 | A kind of medium temperature wide temperature range polyurethane damping paint and preparation method thereof |
| CN108117631A (en) * | 2018-01-31 | 2018-06-05 | 青岛沙木新材料有限公司 | Casting type damping material |
| CN110698633A (en) * | 2019-10-25 | 2020-01-17 | 安徽贝卫新材料科技有限公司 | Hindered amine-containing polyurethane damping material and preparation method thereof |
Non-Patent Citations (4)
| Title |
|---|
| 刘宁 等: "聚氨酯弹性体结构对阻尼性能及力学性能的影响", vol. 30, no. 30, pages 38 - 42 * |
| 张晓蕾 等: "聚酯型聚氨酯阻尼材料的结构性能与表征", vol. 29, no. 2, pages 460 - 65 * |
| 肖千云 等: "《铁路货车技术与管理》", vol. 1, 哈尔滨工程大学出版社, pages: 139 - 112 * |
| 许利莎 等: "聚酯型聚氨酯阻尼材料的制备与结构性能", vol. 28, no. 4, pages 125 - 128 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112769075A (en) * | 2020-11-25 | 2021-05-07 | 国网电子商务有限公司 | Repairing method for overhead line insulating protective layer |
| CN113416410A (en) * | 2021-07-06 | 2021-09-21 | 佛山市协通橡塑制品有限公司 | Running board and preparation method thereof |
| CN113462146A (en) * | 2021-07-06 | 2021-10-01 | 佛山市协通橡塑制品有限公司 | Soft running board wearing layer |
| CN113462146B (en) * | 2021-07-06 | 2023-08-15 | 佛山市协通新材料制造有限公司 | Soft running plate wear-resisting layer |
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