CN115627148A - Polyurethane material capable of being bonded on wet interface, preparation method and application - Google Patents
Polyurethane material capable of being bonded on wet interface, preparation method and application Download PDFInfo
- Publication number
- CN115627148A CN115627148A CN202211564495.1A CN202211564495A CN115627148A CN 115627148 A CN115627148 A CN 115627148A CN 202211564495 A CN202211564495 A CN 202211564495A CN 115627148 A CN115627148 A CN 115627148A
- Authority
- CN
- China
- Prior art keywords
- parts
- mass
- prepared
- agent
- mass ratio
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
-
- 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
- C08G18/16—Catalysts
- C08G18/22—Catalysts containing metal compounds
- C08G18/222—Catalysts containing metal compounds metal compounds not provided for in groups C08G18/225 - C08G18/26
-
- 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
- C08G18/16—Catalysts
- C08G18/22—Catalysts containing metal compounds
- C08G18/24—Catalysts containing metal compounds of tin
- C08G18/244—Catalysts containing metal compounds of tin tin salts of carboxylic acids
- C08G18/246—Catalysts containing metal compounds of tin tin salts of carboxylic acids containing also tin-carbon bonds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3203—Polyhydroxy compounds
- C08G18/3206—Polyhydroxy compounds aliphatic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4825—Polyethers containing two hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4829—Polyethers containing at least three hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6674—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
-
- 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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- 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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- 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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
- E01B1/002—Ballastless track, e.g. concrete slab trackway, or with asphalt layers
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/02—Arrangement or construction of joints; Methods of making joints; Packing for joints
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2206—Oxides; Hydroxides of metals of calcium, strontium or barium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
Abstract
The invention relates to a polyurethane material capable of being bonded on a wet interface, a preparation method and application thereof, wherein the polyurethane material comprises the following raw materials in percentage by mass of 0.9:1 to 1.2:1, material A and material B; the material A comprises 90 to 110 parts of polyol, 1~2 parts of composite catalyst, 20 to 30 parts of hydrophobic agent, 1~2 parts of anti-aging agent and 1~2 parts of water absorbent in parts by mass; the material B comprises 90 to 110 parts by mass of isocyanate prepolymer, 3~5 parts by mass of water absorbent and 10 to 20 parts by mass of hydrophobing agent; the composite catalyst is prepared from the following components in a mass ratio of 12 to 18:18 to 22:28 to 32:23 to 28 dibutyltin dilaurate, strontium chloride, rhodium chloride and aluminum chloride, and the experiment of the bonding strength of the polyurethane material on a wet interface provided by the invention shows that the material has a great application value in the fields of building, road and bridge, ballastless track caulking, gap separation and tunnel crack renovation.
Description
Technical Field
The invention relates to a polyurethane material capable of being bonded on a wet interface, a preparation method and application thereof, belonging to the technical field of polyurethane materials.
Background
Diseases such as concrete interface damage, CA mortar water erosion deterioration, caulking, gap separation, cracks and the like are inevitably generated in the ballastless track in the operation process of the high-speed railway. The gap is the crack between the poured and hardened filling layer and the track plate or the base plate. Through field investigation on the gap condition of the filling layer of the opened slab ballastless track line, the mortar at the end corner part of the track slab is most likely to have a gap, and the gap width is different from 0.5mm to 5mm and is changed along with the change of the environmental temperature. When the filling layer generates a gap, on one hand, rainwater on the track plate flows into the gap along the periphery of the track plate, so that a water accumulation layer is formed between the filling layer and the track plate or the base plate; on the other hand, the vertical acceleration and the displacement of the track slab in the gap state are increased, so that the impact load effect of the track slab on the mortar filling layer when the high-speed train runs is increased. Under the alternate and cyclic action of repeated impact load, hydrodynamic pressure and temperature change during the operation of a high-speed train, the gaps in the filling layer are continuously generated, expanded and extended, and are finally communicated to form a crack network, so that the filling layer is cracked.
The damage of the ballastless track filling layer seriously affects the normal use of the track, and if the repair is not carried out in time, the gap can be continuously expanded and aggravated under the action of various degradation factors, so that great potential safety hazard and economic loss can be brought.
At present, gap repair glue products in the market mainly comprise polyurethanes, silicones, acrylics and the like, wherein the silicones have better acid and alkali resistance but low strength. The acrylic acid product has high strength, but has poor flexibility and elasticity, and is easy to crack caused by the change of expansion and contraction of the cement expansion joint. The polyurethane gap repair adhesive has good comprehensive performance and moderate price, which provides favorable conditions for wide application in buildings. The polyurethane gap repair adhesive is divided into a single component and a double component, and the single component product is inevitably foamed and bulged due to the fact that isocyanate reacts with water to release gas, so that the strength is reduced. The two-component product is primarily the reaction of an isocyanate with a polyether polyol.
However, the common two-component polyurethane gap repair adhesive has the problems that the common two-component polyurethane gap repair adhesive is easy to separate from the bonding surface under the wet condition with concrete, is easy to separate from the bonding surface under the action of dynamic load and cannot be bonded at a wet interface. For example, chinese patent with patent publication No. CN 103980697A discloses a nano silica modified polyurethane elastomer and a preparation method thereof, silica particles are uniformly dispersed in polyurethane, the reinforcing effect of nanoparticles is fully exerted, the prepared polyurethane elastomer is cross-linked by nano silica particles, the heat resistance and chemical stability of the polyurethane elastomer can be remarkably improved, but the polyurethane elastomer has poor bonding strength at a wet interface; for example, chinese patent publication No. CN101245182a discloses a high temperature resistant and water resistant polyurethane composition for sealant and a preparation method thereof, the composition has good high temperature resistance and good water resistance, but the bonding strength and bonding stability of a wet interface are not good enough.
In view of this, a method capable of improving the adhesion performance of the gap repair adhesive on the wet interface is needed to meet the sealing repair requirement in the wet environment.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a polyurethane material capable of being bonded on a wet interface, a preparation method and application thereof.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
subject of the technology 1
A polyurethane material capable of bonding at a wet interface,
the raw materials are mixed according to the mass ratio of 0.9:1 to 1.2:1, material A and material B;
the material A comprises 90 to 110 parts of polyol, 1~2 parts of composite catalyst, 20 to 30 parts of hydrophobic agent, 1~2 parts of anti-aging agent and 1~2 parts of water absorbent in parts by mass;
the material B comprises 90 to 110 parts by mass of isocyanate prepolymer, 3~5 parts by mass of water absorbent and 10 to 20 parts by mass of hydrophobing agent;
the composite catalyst is prepared from the following components in a mass ratio of 12 to 18:18 to 22:28 to 32:23 to 28 of dibutyltin dilaurate, strontium chloride, rhodium chloride and aluminum chloride.
In some embodiments of the invention, the polyol is a polyether polyol having a molecular weight of 500 to 800g/mol, a functionality of 2~3, and a viscosity of 1200 to 3500mPa · s at 25 ℃.
In some embodiments of the invention, the hydrophobic agent is selected from paraffin oil, hexane or a mixture of paraffin oil and hexane.
In some embodiments of the invention, the hydrophobizing agent is present in a mass ratio of 1:1 mixture of paraffin oil and hexane.
In some embodiments of the invention, the antioxidant is a mixture of 40:60 parts of 2,6-di-tert-butyl-p-cresol and 3,5-di-tert-butyl-4-hydroxyphenylpropionic acid.
In some embodiments of the invention, the water absorbent is selected from one or a combination of any two or more of nano silicon dioxide molecular sieve, nano calcium oxide and nano magnesium oxide;
the particle diameters of the nano silicon dioxide molecular sieve, the nano calcium oxide and the nano magnesium oxide are all 20 to 80 nanometers.
In some embodiments of the invention, the isocyanate prepolymer is a prepolymer prepared from isocyanate and polytetrahydrofuran with a molecular weight of 500, and the mass content of NCO in the isocyanate prepolymer is 15-20%.
Subject matter two
A method for preparing a polyurethane material that can be bonded at a wet interface as provided in the first technical subject, comprising the steps of:
a. preparing materials: preparing a mass ratio of 0.9:1 to 1.2:1, material A and material B;
the prepared material A comprises 90-110 parts of polyol, 1~2 parts of composite catalyst, 20-30 parts of hydrophobic agent, 1~2 parts of anti-aging agent and 1~2 parts of water absorbent in parts by mass;
the prepared material B comprises 90 to 110 parts by mass of isocyanate prepolymer, 3~5 parts by mass of water absorbent and 10 to 20 parts by mass of hydrophobic agent;
the prepared composite catalyst is prepared by mixing the following components in a mass ratio of 12 to 18:18 to 22:28 to 32:23 to 28 of dibutyltin dilaurate, strontium chloride, rhodium chloride and aluminum chloride;
b. respectively mixing and stirring the material A and the material B, and stirring at the stirring speed of 2000-3000r/min for 10-20min;
c. and mixing the material A and the material B after mixing and stirring, wherein the stirring speed is 2000-3000 r/min, and the stirring time is 15-25s.
Subject of the technology III
The application of the polyurethane material capable of being bonded at the wet interface as provided by the technical subject one in the fields of building, road and bridge, high-speed railway ballastless track caulking, gap separation and tunnel crack treatment.
In some embodiments of the invention, the polyurethane material that can bond at a wet interface fills a wet gap for sealing.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
according to the polyurethane material provided by the invention, the composite catalyst adopted by the raw materials can selectively promote the reaction of isocyanate and polyol, inhibit the reaction of water and isocyanate, and the water absorbent rapidly reacts with interfacial water to form a dry microenvironment, so that the generated polyurethane material cannot foam at the interface; the hydrophobic agent forms a semi-continuous protective layer around the polyurethane, reduces the water absorption of the polyurethane material at the interface, stabilizes the structure and the performance of the polyurethane material at the interface, and does not generate debonding in the service process under a humid environment.
The polyurethane material provided by the invention is subjected to a performance test, the hardness (IRHD) is 52 to 55, the tensile strength can reach 23MPa, the elongation at break can reach 30%, and the bonding strength of a wet interface can reach 2.0MPa.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following description of the present invention is given for clarity and completeness.
The materials used in the examples below are commercially available as polyether polyols having a molecular weight of 500 to 800g/mol, a functionality of 2~3, a viscosity of 1200 to 3500mPa · s at 25 ℃ from Shandong Lanxingdong, inc.; the particle diameters of the nano silicon dioxide molecular sieve, the nano calcium oxide and the nano magnesium oxide are all 20 to 80 nanometers; the isocyanate prepolymer is prepared from isocyanate and polytetrahydrofuran with the molecular weight of 500, and the NCO mass content of the isocyanate prepolymer is 15-20%, which is purchased from Wanhua chemical Co., ltd., NGSY8890.
Example 1
A method for preparing a polyurethane material capable of being bonded at a wet interface comprises the following steps:
a. preparing materials: preparing a material with the mass ratio of 1:1, material A and material B;
the prepared material A comprises 100 parts of polyhydric alcohol, 1.5 parts of composite catalyst, 28 parts of hydrophobing agent, 1.5 parts of anti-aging agent and 1.5 parts of water absorbent in parts by mass;
the prepared material B comprises 100 parts of isocyanate prepolymer, 4 parts of water absorbent and 14 parts of hydrophobic agent in parts by weight;
the prepared composite catalyst is prepared by mixing the following components in a mass ratio of 15:20:30:25 dibutyltin dilaurate, strontium chloride, rhodium chloride and aluminum chloride; the mass ratio of the hydrophobing agent in the material A is 1:1 mixture of paraffin oil and hexane; the mass ratio of the hydrophobing agent in the material B is 1:1 mixture of paraffin oil and hexane; the anti-aging agent is prepared from the following components in percentage by mass: 60 parts of 2,6-di-tert-butyl-p-cresol and 3,5-di-tert-butyl-4-hydroxyphenylpropionic acid; the mass ratio of the water absorbent in the material A is 1:1 of nano calcium oxide and nano magnesium oxide; the mass ratio of the water absorbent in the material B is 1:1 of nano calcium oxide and nano magnesium oxide;
b. respectively mixing and stirring the material A and the material B at the stirring speed of 2500r/min for 15min;
c. and mixing the material A and the material B after mixing and stirring to obtain a polyurethane material, wherein the stirring speed is 2500r/min, and the stirring time is 20s.
Example 2
A method for preparing a polyurethane material capable of being bonded at a wet interface comprises the following steps:
a. preparing materials: preparing a mass ratio of 0.9:1, material A and material B;
the prepared material A comprises 110 parts of polyol, 1 part of composite catalyst, 20 parts of hydrophobing agent, 2 parts of anti-aging agent and 1 part of water absorbent in parts by mass;
the prepared material B comprises 90 parts of isocyanate prepolymer, 3 parts of water absorbent and 20 parts of hydrophobic agent by weight;
the prepared composite catalyst is prepared by mixing the following components in a mass ratio of 18:18:32:23 dibutyltin dilaurate, strontium chloride, rhodium chloride and aluminum chloride; the hydrophobing agent in the material A is paraffin oil; the hydrophobic agent in the material B is hexane; the anti-aging agent is prepared from the following components in percentage by mass: 60 parts of 2,6-di-tert-butyl-p-cresol and 3,5-di-tert-butyl-4-hydroxyphenylpropionic acid; the water absorbent in the material A is a nano silicon dioxide molecular sieve; the water absorbent in the material B is nano calcium oxide;
b. respectively mixing and stirring the material A and the material B at the stirring speed of 2000r/min for 20min;
c. and mixing the mixed material A and the mixed material B to obtain the polyurethane material, wherein the stirring speed is 2000r/min, and the stirring time is 25s.
Example 3
A method for preparing a polyurethane material capable of being bonded at a wet interface comprises the following steps:
a. preparing materials: preparing a material with a mass ratio of 1.2:1, material A and material B;
the prepared material A comprises 90 parts of polyhydric alcohol, 2 parts of composite catalyst, 30 parts of hydrophobic agent, 1 part of anti-aging agent and 2 parts of water absorbent in parts by mass;
according to the mass parts, the prepared material B comprises 110 parts of isocyanate prepolymer, 5 parts of water absorbent and 10 parts of hydrophobic agent;
the prepared composite catalyst is prepared by mixing the following components in a mass ratio of 12:22:28:23 dibutyltin dilaurate, strontium chloride, rhodium chloride and aluminum chloride; the hydrophobing agent in the material A is hexane; the hydrophobic agent in the material B is paraffin oil; the anti-aging agent is prepared from the following components in percentage by mass 40:60 parts of 2,6-di-tert-butyl-p-cresol and 3,5-di-tert-butyl-4-hydroxyphenylpropionic acid; the water absorbent in the material A is nano calcium oxide; the water absorbent in the material B is a nano silicon dioxide molecular sieve;
b. respectively mixing and stirring the material A and the material B at a stirring speed of 3000r/min for 10min;
c. and mixing the material A and the material B after mixing and stirring to obtain a polyurethane material, wherein the stirring speed is 2000r/min, and the stirring time is 25s.
Example 4
A method for preparing a polyurethane material capable of being bonded at a wet interface comprises the following steps:
a. preparing materials: preparing a material with the mass ratio of 1:1, material A and material B;
the prepared material A comprises 100 parts of polyol, 1.5 parts of composite catalyst, 28 parts of hydrophobic agent, 1.5 parts of anti-aging agent and 1.5 parts of water absorbent in parts by mass;
the prepared material B comprises 100 parts of isocyanate prepolymer, 4 parts of water absorbent and 14 parts of hydrophobic agent in parts by weight;
the prepared composite catalyst is prepared by mixing the following components in a mass ratio of 15:20:30:25 dibutyl tin dilaurate, strontium chloride, rhodium chloride and aluminum chloride; the mass ratio of the hydrophobing agent in the material A is 1:1 mixture of paraffin oil and hexane; the mass ratio of the hydrophobing agent in the material B is 1:1 mixture of paraffin oil and hexane; the anti-aging agent is prepared from the following components in percentage by mass: 60 parts of 2,6-di-tert-butyl-p-cresol and 3,5-di-tert-butyl-4-hydroxyphenylpropionic acid; the water absorbent in the material A is nano calcium oxide; the water absorbent in the material B is nano calcium oxide;
b. respectively mixing and stirring the material A and the material B at the stirring speed of 2500r/min for 15min;
c. and mixing the material A and the material B after mixing and stirring to obtain a polyurethane material, wherein the stirring speed is 2500r/min, and the stirring time is 20s.
Example 5
A method for preparing a polyurethane material capable of being bonded at a wet interface comprises the following steps:
a. preparing materials: preparing a material with the mass ratio of 1:1, material A and material B;
the prepared material A comprises 100 parts of polyol, 1.5 parts of composite catalyst, 28 parts of hydrophobic agent, 1.5 parts of anti-aging agent and 1.5 parts of water absorbent in parts by mass;
the prepared material B comprises 100 parts of isocyanate prepolymer, 4 parts of water absorbent and 14 parts of hydrophobic agent in parts by weight;
the prepared composite catalyst is prepared from the following components in a mass ratio of 15:20:30:25 dibutyltin dilaurate, strontium chloride, rhodium chloride and aluminum chloride; the mass ratio of the hydrophobing agent in the material A is 1:1 mixture of paraffin oil and hexane; the mass ratio of the hydrophobing agent in the material B is 1:1 mixture of paraffin oil and hexane; the anti-aging agent is prepared from the following components in percentage by mass: 60 parts of 2,6-di-tert-butyl-p-cresol and 3,5-di-tert-butyl-4-hydroxyphenylpropionic acid; the water absorbent in the material A is nano magnesium oxide; the water absorbent in the material B is nano magnesium oxide;
b. respectively mixing and stirring the material A and the material B at the stirring speed of 2500r/min for 15min;
c. and mixing the material A and the material B after mixing and stirring to obtain a polyurethane material, wherein the stirring speed is 2500r/min, and the stirring time is 20s.
Comparative example 1
A method for preparing a polyurethane material capable of being bonded at a wet interface comprises the following steps:
a. preparing materials: preparing a material with the mass ratio of 1:1, material A and material B;
the prepared material A comprises 100 parts of polyol, 1.5 parts of composite catalyst, 28 parts of hydrophobic agent, 1.5 parts of anti-aging agent and 1.5 parts of water absorbent in parts by mass;
the prepared material B comprises 100 parts of isocyanate prepolymer, 4 parts of water absorbent and 14 parts of hydrophobic agent in parts by weight;
the prepared composite catalyst is prepared from the following components in a mass ratio of 15:25 dibutyltin dilaurate and aluminum chloride; the mass ratio of the hydrophobing agent in the material A is 1:1 mixture of paraffin oil and hexane; the mass ratio of the hydrophobing agent in the material B is 1:1 mixture of paraffin oil and hexane; the anti-aging agent is prepared from the following components in percentage by mass: 60 parts of 2,6-di-tert-butyl-p-cresol and 3,5-di-tert-butyl-4-hydroxyphenylpropionic acid; the mass ratio of the water absorbent in the material A is 1:1 of nano calcium oxide and nano magnesium oxide; the mass ratio of the water absorbent in the material B is 1:1 of nano calcium oxide and nano magnesium oxide;
b. respectively mixing and stirring the material A and the material B at a stirring speed of 2500r/min for 15min;
c. and mixing the material A and the material B after mixing and stirring to obtain a polyurethane material, wherein the stirring speed is 2500r/min, and the stirring time is 20s.
Comparative example 2
A method for preparing a polyurethane material capable of being bonded at a wet interface comprises the following steps:
a. preparing materials: preparing a material with the mass ratio of 1:1, material A and material B;
the prepared material A comprises 100 parts of polyol, 1.5 parts of composite catalyst, 28 parts of hydrophobic agent, 1.5 parts of anti-aging agent and 1.5 parts of water absorbent in parts by mass;
the prepared material B comprises 100 parts of isocyanate prepolymer, 4 parts of water absorbent and 14 parts of hydrophobic agent in parts by weight;
the prepared composite catalyst is prepared by mixing the following components in a mass ratio of 15:30:25 dibutyltin dilaurate, rhodium chloride and aluminum chloride; the mass ratio of the hydrophobing agent in the material A is 1:1 a mixture of paraffin oil and hexane; the mass ratio of the hydrophobing agent in the material B is 1:1 mixture of paraffin oil and hexane; the anti-aging agent is prepared from the following components in percentage by mass 40:60 parts of 2,6-di-tert-butyl-p-cresol and 3,5-di-tert-butyl-4-hydroxyphenylpropionic acid; the mass ratio of the water absorbent in the material A is 1:1 of nano calcium oxide and nano magnesium oxide; the mass ratio of the water absorbent in the material B is 1:1 of nano calcium oxide and nano magnesium oxide;
b. respectively mixing and stirring the material A and the material B at a stirring speed of 2500r/min for 15min;
c. and mixing the material A and the material B after mixing and stirring to obtain a polyurethane material, wherein the stirring speed is 2500r/min, and the stirring time is 20s.
Comparative example 3
A method for preparing a polyurethane material capable of being bonded at a wet interface comprises the following steps:
a. preparing materials: preparing a material with the mass ratio of 1:1, material A and material B;
the prepared material A comprises 100 parts of polyhydric alcohol, 1.5 parts of composite catalyst, 28 parts of hydrophobing agent, 1.5 parts of anti-aging agent and 1.5 parts of water absorbent in parts by mass;
the prepared material B comprises 100 parts of isocyanate prepolymer, 4 parts of water absorbent and 14 parts of hydrophobic agent in parts by mass;
the prepared composite catalyst is prepared by mixing the following components in a mass ratio of 15:20:25 dibutyltin dilaurate, strontium chloride and aluminum chloride; the mass ratio of the hydrophobing agent in the material A is 1:1 mixture of paraffin oil and hexane; the mass ratio of the hydrophobing agent in the material B is 1:1 mixture of paraffin oil and hexane; the anti-aging agent is prepared from the following components in percentage by mass: 60 parts of 2,6-di-tert-butyl-p-cresol and 3,5-di-tert-butyl-4-hydroxyphenylpropionic acid; the mass ratio of the water absorbent in the material A is 1:1 of nano calcium oxide and nano magnesium oxide; the mass ratio of the water absorbent in the material B is 1:1 of nano calcium oxide and nano magnesium oxide;
b. respectively mixing and stirring the material A and the material B at the stirring speed of 2500r/min for 15min;
c. and mixing the material A and the material B after mixing and stirring to obtain a polyurethane material, wherein the stirring speed is 2500r/min, and the stirring time is 20s.
Comparative example 4
A method for preparing a polyurethane material capable of being bonded at a wet interface comprises the following steps:
a. preparing materials: preparing a material with the mass ratio of 1:1, material A and material B;
the prepared material A comprises 100 parts of polyhydric alcohol, 1.5 parts of composite catalyst, 28 parts of hydrophobing agent, 1.5 parts of anti-aging agent and 1.5 parts of water absorbent in parts by mass;
the prepared material B comprises 100 parts of isocyanate prepolymer, 4 parts of water absorbent and 14 parts of hydrophobic agent in parts by weight;
the prepared composite catalyst is prepared by mixing the following components in a mass ratio of 15:20:30:25 dibutyltin dilaurate, zinc isooctanoate, rhodium chloride and aluminum chloride; the mass ratio of the hydrophobing agent in the material A is 1:1 mixture of paraffin oil and hexane; the mass ratio of the hydrophobing agent in the material B is 1:1 mixture of paraffin oil and hexane; the anti-aging agent is prepared from the following components in percentage by mass: 60 parts of 2,6-di-tert-butyl-p-cresol and 3,5-di-tert-butyl-4-hydroxyphenylpropionic acid; the mass ratio of the water absorbent in the material A is 1:1 of nano calcium oxide and nano magnesium oxide; the mass ratio of the water absorbent in the material B is 1:1 of nano calcium oxide and nano magnesium oxide;
b. respectively mixing and stirring the material A and the material B at the stirring speed of 2500r/min for 15min;
c. and mixing the material A and the material B after mixing and stirring to obtain a polyurethane material, wherein the stirring speed is 2500r/min, and the stirring time is 20s.
Comparative example 5
A method for preparing a polyurethane material capable of being bonded at a wet interface comprises the following steps:
a. preparing materials: preparing a material with the mass ratio of 1:1, material A and material B;
the prepared material A comprises 100 parts of polyol, 1.5 parts of composite catalyst, 28 parts of hydrophobic agent, 1.5 parts of anti-aging agent and 1.5 parts of water absorbent in parts by mass;
the prepared material B comprises 100 parts of isocyanate prepolymer, 4 parts of water absorbent and 14 parts of hydrophobic agent in parts by weight;
the prepared composite catalyst is prepared by mixing the following components in a mass ratio of 15:50:25 dibutyl tin dilaurate, bismuth isooctanoate and aluminum chloride; the mass ratio of the hydrophobing agent in the material A is 1:1 mixture of paraffin oil and hexane; the mass ratio of the hydrophobing agent in the material B is 1:1 mixture of paraffin oil and hexane; the anti-aging agent is prepared from the following components in percentage by mass: 60 parts of 2,6-di-tert-butyl-p-cresol and 3,5-di-tert-butyl-4-hydroxyphenylpropionic acid; the mass ratio of the water absorbent in the material A is 1:1 of nano calcium oxide and nano magnesium oxide; the mass ratio of the water absorbent in the material B is 1:1 of nano calcium oxide and nano magnesium oxide;
b. respectively mixing and stirring the material A and the material B at the stirring speed of 2500r/min for 15min;
c. and mixing the material A and the material B after mixing and stirring to obtain a polyurethane material, wherein the stirring speed is 2500r/min, and the stirring time is 20s.
Comparative example 6
A method for preparing a polyurethane material capable of being bonded at a wet interface comprises the following steps:
a. preparing materials: preparing a material with the mass ratio of 1:1, material A and material B;
the prepared material A comprises 100 parts of polyol, 1.5 parts of composite catalyst, 28 parts of hydrophobic agent, 1.5 parts of anti-aging agent and 1.5 parts of water absorbent in parts by mass;
the prepared material B comprises 100 parts of isocyanate prepolymer, 4 parts of water absorbent and 14 parts of hydrophobic agent in parts by weight;
the prepared composite catalyst is prepared from the following components in a mass ratio of 15:20:30:25 dibutyltin dilaurate, strontium nitrate, rhodium nitrate and aluminum chloride; the mass ratio of the hydrophobing agent in the material A is 1:1 mixture of paraffin oil and hexane; the mass ratio of the hydrophobing agent in the material B is 1:1 mixture of paraffin oil and hexane; the anti-aging agent is prepared from the following components in percentage by mass: 60 of 2,6-di-tert-butyl-p-cresol and 3,5-di-tert-butyl-4-hydroxyphenylpropionic acid; the mass ratio of the water absorbent in the material A is 1:1 of nano calcium oxide and nano magnesium oxide; the mass ratio of the water absorbent in the material B is 1:1 of nano calcium oxide and nano magnesium oxide;
b. respectively mixing and stirring the material A and the material B at the stirring speed of 2500r/min for 15min;
c. and mixing the material A and the material B after mixing and stirring to obtain a polyurethane material, wherein the stirring speed is 2500r/min, and the stirring time is 20s.
Comparative example 7
A method for preparing a polyurethane material capable of being bonded at a wet interface comprises the following steps:
a. preparing materials: according to the mass parts, material A: preparing 100 parts of polyol, 1.5 parts of composite catalyst, 42 parts of hydrophobic agent, 1.5 parts of anti-aging agent and 5.5 parts of water absorbent;
b, material B: 100 parts of isocyanate prepolymer;
the prepared composite catalyst is prepared by mixing the following components in a mass ratio of 15:20:30:25 dibutyltin dilaurate, strontium chloride, rhodium chloride and aluminum chloride; the mass ratio of the water repellent agent is 1:1 mixture of paraffin oil and hexane; the anti-aging agent is prepared from the following components in percentage by mass: 60 parts of 2,6-di-tert-butyl-p-cresol and 3,5-di-tert-butyl-4-hydroxyphenylpropionic acid; the water absorbent is prepared from the following components in a mass ratio of 1:1 of nano calcium oxide and nano magnesium oxide;
b. mixing and stirring the material A at a stirring speed of 2500r/min for 15min;
c. and mixing the material A and the material B to obtain a polyurethane material, wherein the stirring speed is 2500r/min, and the stirring time is 20s.
Comparative example 8
A method for preparing a polyurethane material capable of being bonded at a wet interface comprises the following steps:
a. preparing materials: preparing a material with the mass ratio of 1:1, material A and material B;
the prepared material A comprises 100 parts of polyol, 1.5 parts of composite catalyst and 1.5 parts of anti-aging agent by mass;
the prepared material B comprises 100 parts of isocyanate prepolymer, 42 parts of hydrophobic agent and 5.5 parts of water absorbent in parts by weight;
the prepared composite catalyst is prepared by mixing the following components in a mass ratio of 15:20:30:25 dibutyltin dilaurate, strontium chloride, rhodium chloride and aluminum chloride; the mass ratio of the water repellent agent is 1:1 a mixture of paraffin oil and hexane; the anti-aging agent is prepared from the following components in percentage by mass: 60 parts of 2,6-di-tert-butyl-p-cresol and 3,5-di-tert-butyl-4-hydroxyphenylpropionic acid; the water absorbent is prepared from the following components in a mass ratio of 1:1 of nano calcium oxide and nano magnesium oxide;
b. respectively mixing and stirring the material A and the material B at the stirring speed of 2500r/min for 15min;
c. and mixing the material A and the material B after mixing and stirring to obtain a polyurethane material, wherein the stirring speed is 2500r/min, and the stirring time is 20s.
Performance testing
The polyurethane materials obtained in examples 1 to 5 and comparative examples 1 to 8 were subjected to a performance test according to the following:
the hardness test was carried out according to the method specified in GB/T531.1, the experimental force remaining 3s.
The adhesive strength was tested according to GB/T16777-2008, chapter 7A.
According to the test temperature condition of the Q/CR 601-2017 railway ballastless track caulking material, after alkali treatment for 336h and thermal aging (80 ℃) for 336h, the tensile strength and the elongation at break of a sample are determined, and after the thermal aging (80 ℃) for 336h and water immersion for 192h, the temperature is 23 ℃, 20 ℃ below zero, the thermal aging (80 ℃) is determined to be tensile and cohesive (150%);
the results are given in tables 1-2 below:
TABLE 1
TABLE 2
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A polyurethane material capable of being bonded at a wet interface is characterized by comprising the following raw materials in percentage by mass of 0.9:1 to 1.2:1, material A and material B;
the material A comprises 90 to 110 parts of polyol, 1~2 parts of composite catalyst, 20 to 30 parts of hydrophobic agent, 1~2 parts of anti-aging agent and 1~2 parts of water absorbent in parts by mass;
the material B comprises 90 to 110 parts by mass of isocyanate prepolymer, 3~5 parts by mass of water absorbent and 10 to 20 parts by mass of hydrophobing agent;
the composite catalyst is prepared from the following components in a mass ratio of 12 to 18:18 to 22:28 to 32:23 to 28 of dibutyltin dilaurate, strontium chloride, rhodium chloride and aluminum chloride.
2. The polyurethane material capable of being bonded at a wet interface according to claim 1, wherein the polyol is polyether polyol with a molecular weight of 500 to 800g/mol, the functionality is 2~3, and the viscosity at 25 ℃ is 1200 to 3500 mPa-s.
3. The moisture-bondable textile according to claim 1, wherein the water repellent agent is selected from paraffin oil, hexane or a mixture of paraffin oil and hexane.
4. The polyurethane material capable of being bonded at a wet interface according to claim 1, wherein the water repellent agent is a mixture of a water repellent agent and a water repellent agent in a mass ratio of 1:1 mixture of paraffin oil and hexane.
5. The polyurethane material capable of being bonded at a wet interface as claimed in claim 1, wherein the anti-aging agent is a mixture of the following components in a mass ratio of 40:60 parts of 2,6-di-tert-butyl-p-cresol and 3,5-di-tert-butyl-4-hydroxyphenylpropionic acid.
6. The polyurethane material capable of being bonded at a wet interface according to claim 1, wherein the water absorbent is one or a combination of any two or more of nano silica molecular sieve, nano calcium oxide and nano magnesium oxide;
the particle diameters of the nano silicon dioxide molecular sieve, the nano calcium oxide and the nano magnesium oxide are all 20 to 80 nanometers.
7. The polyurethane material capable of being bonded at a wet interface as claimed in claim 1, wherein the isocyanate prepolymer is prepared from isocyanate and polytetrahydrofuran with molecular weight of 500, and the NCO mass content in the isocyanate prepolymer is 15-20%.
8. A method for preparing a polyurethane material capable of being bonded at a wet interface is characterized by comprising the following steps:
a. preparing materials: preparing a mass ratio of 0.9:1 to 1.2:1, material A and material B;
the prepared material A comprises 90-110 parts of polyol, 1~2 parts of composite catalyst, 20-30 parts of hydrophobic agent, 1~2 parts of anti-aging agent and 1~2 parts of water absorbent in parts by mass;
the prepared material B comprises 90 to 110 parts by mass of isocyanate prepolymer, 3~5 parts by mass of water absorbent and 10 to 20 parts by mass of hydrophobic agent;
the prepared composite catalyst is prepared by mixing the following components in a mass ratio of 12 to 18:18 to 22:28 to 32:23 to 28 of dibutyltin dilaurate, strontium chloride, rhodium chloride and aluminum chloride;
b. respectively mixing and stirring the material A and the material B at a stirring speed of 2000-3000 r/min for 10-20min;
c. and mixing the material A and the material B after mixing and stirring to obtain a polyurethane material, wherein the stirring speed is 2000-3000 r/min, and the stirring time is 15-25s.
9. Use of the polyurethane material of any one of claims 1~7 in wet-interface bonding in the fields of construction, road and bridge, high speed railway ballastless track caulking, gap separation and tunnel crack remediation.
10. Use according to claim 9, wherein the polyurethane material that can be bonded at a wet interface is poured into a wet gap for sealing repair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211564495.1A CN115627148B (en) | 2022-12-07 | 2022-12-07 | Polyurethane material capable of being bonded on wet interface, preparation method and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211564495.1A CN115627148B (en) | 2022-12-07 | 2022-12-07 | Polyurethane material capable of being bonded on wet interface, preparation method and application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115627148A true CN115627148A (en) | 2023-01-20 |
| CN115627148B CN115627148B (en) | 2023-03-21 |
Family
ID=84910036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211564495.1A Active CN115627148B (en) | 2022-12-07 | 2022-12-07 | Polyurethane material capable of being bonded on wet interface, preparation method and application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115627148B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB968102A (en) * | 1961-04-28 | 1964-08-26 | Shell Int Research | A process for preparing polyurethanes from polymeric materials |
| JPS4915640B1 (en) * | 1969-12-27 | 1974-04-16 | ||
| CN102276782A (en) * | 2011-06-08 | 2011-12-14 | 漳州华德高分子应用材料科技有限公司 | Natural plant oil-based planting foam and preparation method thereof |
| CN102838719A (en) * | 2012-09-21 | 2012-12-26 | 中国海洋石油总公司 | High hydrophobic organic silicon-polyurethane insulation compound material and preparation method thereof |
| CN105131580A (en) * | 2015-09-29 | 2015-12-09 | 上海应用技术学院 | Halogen-free flame retardant polyurethane flexible foam and preparation method thereof |
| CN106750086A (en) * | 2016-12-14 | 2017-05-31 | 浙江吉高新材料有限公司 | A kind of high-performance reaction injection molding polyurethane and preparation method thereof |
| CN109880045A (en) * | 2019-02-27 | 2019-06-14 | 鲍可可 | A kind of fire-retardant sound-absorbing polyurethane material and preparation method thereof |
| CN113307933A (en) * | 2021-05-27 | 2021-08-27 | 上海凯众汽车零部件有限公司 | Sound-absorbing polyurethane foam material, and preparation method and application thereof |
-
2022
- 2022-12-07 CN CN202211564495.1A patent/CN115627148B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB968102A (en) * | 1961-04-28 | 1964-08-26 | Shell Int Research | A process for preparing polyurethanes from polymeric materials |
| JPS4915640B1 (en) * | 1969-12-27 | 1974-04-16 | ||
| CN102276782A (en) * | 2011-06-08 | 2011-12-14 | 漳州华德高分子应用材料科技有限公司 | Natural plant oil-based planting foam and preparation method thereof |
| CN102838719A (en) * | 2012-09-21 | 2012-12-26 | 中国海洋石油总公司 | High hydrophobic organic silicon-polyurethane insulation compound material and preparation method thereof |
| CN105131580A (en) * | 2015-09-29 | 2015-12-09 | 上海应用技术学院 | Halogen-free flame retardant polyurethane flexible foam and preparation method thereof |
| CN106750086A (en) * | 2016-12-14 | 2017-05-31 | 浙江吉高新材料有限公司 | A kind of high-performance reaction injection molding polyurethane and preparation method thereof |
| CN109880045A (en) * | 2019-02-27 | 2019-06-14 | 鲍可可 | A kind of fire-retardant sound-absorbing polyurethane material and preparation method thereof |
| CN113307933A (en) * | 2021-05-27 | 2021-08-27 | 上海凯众汽车零部件有限公司 | Sound-absorbing polyurethane foam material, and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115627148B (en) | 2023-03-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101875786B (en) | Single-component room temperature vulcanized organosilicon sealant and preparation method thereof | |
| CN103992633B (en) | A kind of polyurethane caulking material for ballastless track of high-speed railway expansion joint | |
| CN101921568B (en) | Polyurethane adhesive for bonding extruded sheet for high-speed railway and preparation method thereof | |
| CN101805588B (en) | Polyurethane road caulking sealant with good durability and production process | |
| CN101613587B (en) | Polyurethane sealing glue | |
| CN102504749B (en) | A kind of snappiness, heat conduction, environment-protecting polyurethane seal gum | |
| CN101544740B (en) | Molded normal temperature curing urethane resin composition and preparation method thereof | |
| CN101580699B (en) | Polyurethane sealant and preparation method thereof | |
| CN108753198B (en) | Adhesion promoter for silicone sealant, preparation method of adhesion promoter, silicone sealant applied to ballastless track and preparation method of silicone sealant | |
| CN109826094B (en) | Composite waterproof layer of concrete bridge floor of ballast track and construction method thereof | |
| CN107955517B (en) | Polyurea-based elastomer material for concrete protection and seepage prevention of hydraulic buildings | |
| CN1322084C (en) | Silicane modified polyurethane cementing sealing glue and method for making same | |
| CN108949090A (en) | A kind of solvent-free dual-component polyurethane sealant and preparation method thereof | |
| CN115627148B (en) | Polyurethane material capable of being bonded on wet interface, preparation method and application | |
| CN104893646A (en) | Preparation method of high-strength water-resistant mildewproof glass cement | |
| CN111534228B (en) | Self-cleaning spraying rubber asphalt waterproof system and preparation method thereof | |
| CN101580672A (en) | Special high-performance spray polyurethane elastic waterproof anti-corrosive paint and preparation method thereof | |
| CN109679553B (en) | Graphene epoxy waterproof anticorrosion encapsulation slurry and preparation method thereof | |
| CN111592848A (en) | High-thixotropy underwater epoxy grouting material and preparation method thereof | |
| CN109914237B (en) | Composite waterproof layer for railway ballast track concrete bridge floor and construction method thereof | |
| JP3314655B2 (en) | Moisture-curable urethane composition, coating material, sealing material, adhesive | |
| KR101186971B1 (en) | Asphalt urethane binder and method for producing thereof | |
| JP3637560B2 (en) | Moisture curable urethane composition | |
| JP4117416B2 (en) | Moisture curable urethane composition | |
| KR100247470B1 (en) | Water-proofing material containing chloroprene rubber and manufacturing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |