CN110184015B - Environment-friendly efficient cold-patch adhesive and preparation method thereof - Google Patents
Environment-friendly efficient cold-patch adhesive and preparation method thereof Download PDFInfo
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- CN110184015B CN110184015B CN201910524199.0A CN201910524199A CN110184015B CN 110184015 B CN110184015 B CN 110184015B CN 201910524199 A CN201910524199 A CN 201910524199A CN 110184015 B CN110184015 B CN 110184015B
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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
- 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
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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
- 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
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
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Abstract
The invention relates to the field of cold-patch adhesives, and provides an environment-friendly high-efficiency cold-patch adhesive which comprises a component A and a component B; the raw material of the A component comprises an isocyanate composition; the component B comprises, by weight, 5-10% of an alcohol chain extender, 0.1-1% of a silane coupling agent, 10-15% of a flame retardant, 1-5% of a drying agent, 0.5-1.5% of carbon black, 0.1-1% of a catalyst, 0.5-1.5% of an antistatic agent and the balance of a solvent, wherein the solvent is castor oil and/or aromatic oil. Also provides a preparation method of the environment-friendly high-efficiency cold-patch adhesive.
Description
Technical Field
The invention relates to the field of cold-patch adhesives, in particular to an environment-friendly efficient cold-patch adhesive and a preparation method thereof.
Background
The conveying belt is widely used in enterprises such as coke-oven plants, power plants, gas plants, cement plants, mines and the like. The belt feeder is as continuous conveyor tool, generally constitutes a conveying line by many belt feeders link up each other, promptly: the upstream belt conveyor conveys materials to the downstream belt conveyor, strong relevance exists between the upstream belt conveyor and the downstream belt conveyor, if one belt conveyor breaks down, the belt conveyor of the whole system can be caused to lose the conveying function, the production stop of the whole production line is caused, and the loss is huge. As a belt conveyor system for conveying materials such as coke, coal and the like, the materials often contain impurities such as metal, hard blocks and the like, and the adhesive tape is easy to scratch or damage; and the belt conveyor can also generate factors such as belt deviation, material sprinkling and hopper blockage during running, and the rubber belt is damaged. And once a problem occurs, the normal operation of the belt conveyor system can be greatly influenced. The rapid repair of the adhesive tape has very important significance for prolonging the service life of each main part of the belt conveyor system and ensuring the normal operation of the system. If the new belt is replaced, not only can great resource waste be caused and the cost of the enterprise be increased, but also the time for the enterprise to stop can be very long and the enterprise can not normally produce due to the replacement of the new belt, and great economic loss is brought to the enterprise. Therefore, most enterprises choose to repair belts in a very limited amount of time to deal with the damaged area.
For the repair of the belt, there are mainly a hot vulcanization repair method, a mechanical clamping method, a patch attaching method and a cold patch method. Although the hot vulcanization repair method is firm in bonding, the hot vulcanization repair method is being slowly eliminated because the hot vulcanization repair method has complicated processes, complicated required equipment, difficult construction in some places and long downtime and cannot meet the requirements of time saving and rapid repair of enterprises. In the mechanical fastening method and the patch attaching method, although the process is simpler than that of the hot vulcanization method, the adhesion effect of the repaired portion to the belt is not as good as that of the hot vulcanization method, and there is a problem of repeated repair. The cold repair method has simple construction and high efficiency, is gradually accepted by belt manufacturers, and is the main repair method of the current conveyor belt. The cold-patch material comprises neoprene, polyurethane material and the like, and the polyurethane material is loved by customers due to the characteristics of convenient use, good wear resistance of a patch layer and the like.
The cold repair method is to use the rapid curing reaction of polyurethane at room temperature to achieve the purpose of bonding and repairing with rubber. The method has the advantages of simple equipment and construction, quick curing, firmer bonding and the like. At present, most of processes of a cold patching method are that a belt is firstly polished to form a new surface, then a layer of primer is coated to activate the surface of rubber, and polyurethane glue is poured after the primer is dried in the air, so that the patching time is prolonged, the working efficiency is reduced, and the primer contains a large amount of flammable solvents, so that the primer brings harm to human bodies and the environment and has potential safety hazards.
Disclosure of Invention
In order to solve the technical problems, the invention provides an environment-friendly high-efficiency cold patching adhesive in a first aspect, which comprises a component A and a component B; the raw material of the A component comprises an isocyanate composition; the component B comprises, by weight, 5-10% of an alcohol chain extender, 0.1-1% of a silane coupling agent, 10-15% of a flame retardant, 1-5% of a drying agent, 0.5-1.5% of carbon black, 0.1-1% of a catalyst, 0.5-1.5% of an antistatic agent and the balance of a solvent, wherein the solvent is castor oil and/or aromatic oil.
As a preferable technical solution, the weight ratio of the component a to the component B in the present invention is 1: (1.5-5.5).
As a preferred embodiment, the isocyanate composition of the present invention is polymeric MDI and/or MDI.
As a preferred technical solution, the alcohol chain extender in the present invention is a diol having a pendant methyl group.
As a preferred technical scheme, the catalyst comprises a main catalyst and a cocatalyst; the main catalyst comprises an organic tin catalyst, and the cocatalyst comprises an amine catalyst.
As a preferred technical scheme, the solvent is castor oil and aromatic oil; the weight ratio of the castor oil to the aromatic oil is (2-10): 1.
as a preferred technical solution, the raw material of the component B in the present invention further comprises fumed silica, calcined kaolin; the weight ratio of the fumed silica to the calcined kaolin to the aromatic oil is 1: (3-9): (5-15).
In a preferred embodiment, the diol having a pendant methyl group in the present invention is selected from one or more of dipropylene glycol, neopentyl glycol, 1' - (phenylimino) bis-2-propanol, 2, 4-trimethyl-1, 3-pentanediol, 2-methyl-2, 4-pentanediol, 3-tert-butyl-5-methylbenzene-1, 2-diol, 2, 4-trimethyl-1, 3-pentanediol, and 2,2, 3-trimethyl-1, 3-butanediol.
As a preferred technical solution, the diol with a pendant methyl group in the present invention is a combination of dipropylene glycol and neopentyl glycol; the weight ratio of the neopentyl glycol to the dipropylene glycol is 1: (3-8).
The second aspect of the invention provides a preparation method of the environment-friendly high-efficiency cold patching adhesive, which at least comprises the following steps:
(1) preserving and sealing the isocyanate composition by inert gas to obtain a component A;
(2) putting castor oil, an alcohol chain extender and a flame retardant into a reaction kettle, and performing vacuum dehydration treatment to obtain a first mixture;
(3) and sequentially adding the rest raw materials into the first mixture, uniformly stirring, discharging and grinding to obtain the component B.
Has the advantages that:
(1) the cold patch adhesive is produced by adopting a one-step method, the formula and the preparation process are simple, and the production efficiency is improved;
(2) the cold-patch adhesive disclosed by the invention does not need to coat a bottom coating on a repaired belt by using a bottom coating agent, and a product can be directly used for repairing the belt, so that the aim of quickly repairing equipment can be fulfilled, and the construction efficiency is greatly improved;
(3) the cold-patch adhesive has good bonding strength with the surface of the belt, high mechanical strength and high hardness, and has excellent repairing effect on the belt;
(4) the cold-patch adhesive disclosed by the invention has no potential risks of flammability and explosiveness, is high in safety, does not contain toxic organic solvents, does not cause physical health damage and environmental damage to constructors, does not corrode equipment, and is a novel green and environment-friendly product.
The technical features, content and advantages described in the previous sections of the invention will be more readily understood by reference to the following details.
Detailed Description
Unless otherwise indicated, implied from the context, or customary in the art, all parts and percentages herein are by weight and the testing and characterization methods used are synchronized with the filing date of the present application. To the extent that a definition of a particular term disclosed in the prior art is inconsistent with any definitions provided herein, the definition of the term provided herein controls.
The technical features of the technical solutions provided by the present invention are further clearly and completely described below with reference to the specific embodiments, and the scope of protection is not limited thereto.
The words "preferred", "preferably", "more preferred", and the like, in the present invention, refer to embodiments of the invention that may provide certain benefits, under certain circumstances. However, other embodiments may be preferred, under the same or other circumstances. Furthermore, the recitation of one or more preferred embodiments does not imply that other embodiments are not useful, nor is it intended to exclude other embodiments from the scope of the invention. The sources of components not mentioned in the present invention are all commercially available.
The first aspect of the invention provides an environment-friendly high-efficiency cold-patch adhesive, which comprises the following raw materials of a component A and a component B; the raw material of the A component comprises an isocyanate composition; the component B comprises, by weight, 5-10% of an alcohol chain extender, 0.1-1% of a silane coupling agent, 10-15% of a flame retardant, 1-5% of a drying agent, 0.5-1.5% of carbon black, 0.1-1% of a catalyst, 0.5-1.5% of an antistatic agent and the balance of a solvent, wherein the solvent is castor oil and/or aromatic oil.
In some preferred embodiments, the raw materials of the B component comprise, by weight, 6-7% of alcohol chain extender, 0.3-0.8% of silane coupling agent, 12-14% of flame retardant, 2-4% of drying agent, 0.8-1.2% of carbon black, 0.4-0.8% of catalyst, 1-1.3% of antistatic agent, and the balance of solvent, wherein the solvent is castor oil and aromatic oil.
In some more preferred embodiments, the raw materials of the B component comprise, in weight percentage, 6.5% of an alcohol chain extender, 0.5% of a silane coupling agent, 13% of a flame retardant, 3% of a drying agent, 1% of carbon black, 0.6% of a catalyst, 1.2% of an antistatic agent, and the balance of a solvent, which is castor oil and aromatic oil.
In some embodiments, the weight ratio of the a component to the B component is 1: (1.5-5.5); preferably, the weight ratio of the component A to the component B is 1: (3.5-4.5); more preferably, the weight ratio of the component A to the component B is 1: 4.
in some embodiments, the isocyanate composition is a polymeric MDI and/or MDI; preferably, the isocyanate composition is a polymeric MDI.
The purchase manufacturer of the polymeric MDI is not specially limited, preferably, the polymeric MDI is purchased from Guangzhou American New technology culture development Co., Ltd, the brand is Korea Jinhu polymeric MDI, the polymeric MDI is also called crude MDI or polyurethane black material, and the MDI refers to diphenylmethane diisocyanate.
In some embodiments, the solvent is castor oil and an aromatic oil; the weight ratio of the castor oil to the aromatic oil is (2-10): 1; preferably, the solvent is castor oil and aromatic oil; the weight ratio of the castor oil to the aromatic oil is (4-8): 1; more preferably, the solvent is castor oil and aromatic oil; the weight ratio of the castor oil to the aromatic oil is 6: 1.
the castor oil is not particularly limited; preferably, the castor oil is refined castor oil.
In some embodiments, the feedstock for the B component further comprises fumed silica, kaolin; the weight ratio of the fumed silica to the calcined kaolin to the aromatic oil is 1: (3-9): (5-15); preferably, the weight ratio of the fumed silica to the calcined kaolin to the aromatic oil is 1: (5-8): (8-12); more preferably, the weight ratio of the fumed silica, the calcined kaolin and the aromatic oil is 1: 7: 10.
the cold patching adhesive prepared in the invention does not need to coat a bottom coating on the surface layer of the belt, and can be directly coated on the surface of the belt to realize quick patching, wherein the patching adhesive has the advantages of higher curing speed, high mechanical strength and bonding strength and high hardness, and can greatly improve the construction and patching efficiency of the damaged belt; the isocyanate composition adopted in the invention has high functionality and high activity, so that the reaction has fast reaction speed and the strength is increased fast, but the adhesion of the polyurethane high polymer material to a belt made of natural rubber is poor, so that the cold-patch rubber cannot be directly coated on the surface of the belt; according to the invention, the castor oil and the aromatic oil are used as basic reaction environments, and the special alcohol with a side methyl group is used as a chain extender, the calcined kaolin, the fumed silica, the catalyst and the oxazolidine serving as the drying agent are mixed, so that the cold-patch adhesive can be directly coated on the surface of the belt, and excellent bonding strength and mechanical strength are maintained; probably because the castor oil selected has lower polarity and is not easy to absorb water, the foamability of the polymeric MDI is reduced; the gas-phase silicon dioxide is easy to form a hydrogen bond to form a certain three-dimensional net-shaped structure, the introduced oxazolidine can absorb moisture together with the molecular sieve to reduce foamability, and the oxygen atom containing independent electron pairs in the structure can participate in the further reinforcement of the gas-phase silicon dioxide structure to form the three-dimensional net-shaped structure, so that the three-dimensional net-shaped structure still keeps high stability when being influenced by mechanical force and has good mechanical strength.
The fumed silica, calcined kaolin and carbon black are dried in an oven at 120 ℃ and 105 ℃ before use, and can be used after 24 hours.
In some embodiments, the silane coupling agent is selected from the group consisting of one or more combinations of gamma-glycidoxypropyltrimethoxysilane, N-cyclohexyl 3-aminopropylmethyldimethoxysilane, 3-mercaptopropyltriethoxysilane; preferably, the silane coupling agent is gamma-glycidoxypropyltrimethoxysilane.
The CAS number of the gamma-glycidoxypropyltrimethoxysilane is 2530-83-8.
In some embodiments, the flame retardant is selected from the group consisting of tris (2-chloropropyl) phosphate, tris (2-chloroethyl) phosphate, tris (2-bromopropyl) phosphate, tetrakis (2-chloroethyl) ethylene diphosphate; preferably, the flame retardant is selected from one or more of tris (2-chloropropyl) phosphate and tris (2-chloroethyl) phosphate; preferably, the flame retardant is tris (2-chloroethyl) phosphate.
The CAS number of the tris (2-chloroethyl) phosphate is 115-96-8. The CAS number of the phosphoric acid tri (2-chloropropyl) ester is 13674-84-5.
In some embodiments, the desiccant is an oxazolidine and/or molecular sieve; preferably, the drying agent is oxazolidine and a molecular sieve.
In some embodiments, the weight ratio of oxazolidine to molecular sieve is 1: (0.5-1.5); preferably, the weight ratio of the oxazolidine to the molecular sieve is 1: (0.8-1.2); more preferably, the weight ratio of oxazolidine to molecular sieve is 1: 1.
the molecular sieve can be used only after being dried in a muffle furnace for 2-3 hours at 270-300 ℃ and naturally cooled to room temperature before being used.
In some embodiments, the alcohol chain extender is a diol with pendant methyl groups.
In some embodiments, the diol having a pendant methyl group is selected from the group consisting of dipropylene glycol, neopentyl glycol, 1' - (phenylimino) bis-2-propanol, 2, 4-trimethyl-1, 3-pentanediol, 2-methyl-2, 4-pentanediol, 3-tert-butyl-5-methylbenzene-1, 2-diol, 2, 4-trimethyl-1, 3-pentanediol, 2, 3-trimethyl-1, 3-butanediol; preferably, the diol having a pendant methyl group is selected from one or more of dipropylene glycol, neopentyl glycol, 1' - (phenylimino) bis-2-propanol, and 2,2, 4-trimethyl-1, 3-pentanediol; more preferably, the diol with pendant methyl group is one or more of dipropylene glycol and neopentyl glycol.
In some embodiments, the diol having a pendant methyl group is a combination of dipropylene glycol, neopentyl glycol.
In some embodiments, the weight ratio of the neopentyl glycol to the dipropylene glycol is 1: (3-8); preferably, the weight ratio of the neopentyl glycol to the dipropylene glycol is 1: (4-7); more preferably, the weight ratio of said neopentyl glycol to said dipropylene glycol is 1: 5.5.
in some embodiments, the catalyst comprises a primary catalyst and a secondary catalyst; the main catalyst comprises an organic tin catalyst, and the cocatalyst comprises an amine catalyst.
In some embodiments, the organotin catalyst is selected from the group consisting of stannous octoate, dibutyltin dilaurate, dibutyltin bis (dodecylthio) and dibutyltin diacetate in combination of one or more; preferably, the organotin catalyst is stannous octoate.
In some embodiments, the amine catalyst is selected from the group consisting of N, N-dimethylbenzylamine, N-dimethylcyclohexylamine, N' -tetramethylalkylenediamine, triethylamine, and combinations thereof. Preferably, the amine catalyst is N, N-dimethylbenzylamine.
The weight ratio of the organic tin catalyst to the amine catalyst is 1: (1-1.5); preferably, the weight ratio of the organotin catalyst to the amine catalyst is 1: 1.3.
the inventor finds that the dihydric alcohol with a side chain is selected and used as a chain extender to realize rapid curing of the isocyanate composition, and the structure of the dihydric alcohol contains a certain amount of side methyl, so that the distance between molecules can be increased, the hydrogen bond effect and crystallinity in a three-dimensional network structure are weakened, the adhesion of the material to the surface of a rubber belt is increased, and the compounding of aromatic oil and castor oil is favorable for forming uniform surface tension during coating and enhancing the acting force between the three-dimensional network structure and the rubber surface layer, so that the mechanical strength and the adhesion of the cold patch adhesive are further improved; the amine catalyst can be used as the catalyst to improve the curing speed of isocyanate, and the inventor finds that the hardness of the repair surface of the cold-patch adhesive can also be well improved, and probably the amine catalyst and calcined kaolin form a relatively fixed closed system with a weakened three-dimensional network structure, and the amine catalyst can be beneficial to the closed three-dimensional network system to further improve the adhesion with the cold-patch adhesive.
The CAS number of the oxazolidine is 7747-35-5.
In some embodiments, the carbon black is not particularly limited, and generally commercially available carbon black may be used in the present invention, and preferably, Mitsubishi MA100 carbon black, available from Ping Sheng chemical Co., Ltd, of Fonshan.
In some embodiments, the antistatic agent is not particularly limited, and preferably, the antistatic agent is polyoxyethylene sorbitol hexaoleate and/or sorbitan trioleate polyoxyethylene ether; preferably, the antistatic agent is polyoxyethylene sorbitol hexaoleate.
The second aspect of the invention provides a preparation method of the environment-friendly high-efficiency cold patching adhesive, which at least comprises the following steps:
(1) preserving and sealing the isocyanate composition in inert gas to obtain a component A;
(2) putting castor oil, an alcohol chain extender and a flame retardant into a reaction kettle, and performing vacuum dehydration treatment to obtain a first mixture;
(3) and sequentially adding the rest raw materials into the first mixture, uniformly stirring, discharging and grinding to obtain the component B.
In some preferred embodiments, the preparation method of the environment-friendly high-efficiency cold patch glue at least comprises the following steps:
(1) weighing the raw materials in proportion, and preserving and sealing the isocyanate composition by inert gas to obtain a component A;
(2) putting castor oil, an alcohol chain extender and a flame retardant into a reaction kettle, and dehydrating under vacuum at 100-110 ℃ until the moisture mass content is below 0.05% to obtain a first mixture;
(3) and then cooling the first mixture to 50-80 ℃, sequentially adding the rest raw materials into the first mixture, uniformly stirring, discharging, grinding for 2-5 times by a colloid mill or a three-roll grinder, and sealing and storing to obtain the component B.
In some more preferred embodiments, the method for preparing the environment-friendly high-efficiency cold patch glue at least comprises the following steps:
(1) weighing the raw materials in proportion, and preserving and sealing the isocyanate composition by inert gas to obtain a component A;
(2) putting castor oil, an alcohol chain extender and a flame retardant into a reaction kettle, and dehydrating at 105 ℃ in vacuum until the moisture mass content is below 0.05% to obtain a first mixture;
(3) and then cooling the first mixture to 70 ℃, sequentially adding the rest raw materials into the first mixture, uniformly stirring, discharging, grinding for 3 times by a colloid mill or a three-roll grinder, and sealing and storing to obtain the component B.
And (3) testing the moisture mass content in the step (2) by a moisture analyzer.
The third aspect of the invention provides a use method of the environment-friendly high-efficiency cold patching glue, which comprises the following steps: cleaning the surface of the belt; pouring the component A into the component B, stirring for 1-2 minutes, and directly brushing on the surface of a belt.
The present invention is described in detail below with reference to examples, which are provided for the purpose of further illustration only and are not to be construed as limiting the scope of the present invention, and the insubstantial modifications and adaptations thereof by those skilled in the art based on the teachings of the present invention will still fall within the scope of the present invention.
Example 1
An environment-friendly high-efficiency cold-patch adhesive comprises a component A and a component B; the raw material of the A component comprises an isocyanate composition; the raw materials of the component B comprise 6.5 percent of alcohol chain extender, 0.5 percent of silane coupling agent, 13 percent of flame retardant, 3 percent of drying agent, 1 percent of carbon black, 0.6 percent of catalyst, 1.2 percent of antistatic agent and the balance of solvent according to weight percentage, wherein the solvent is castor oil and aromatic oil;
the weight ratio of the component A to the component B is 1: 4; the isocyanate composition is polymeric MDI with the brand of Korea Jinhu Mitsui polymeric MDI; the alcohol chain extender is a combination of dipropylene glycol and neopentyl glycol, and the weight ratio of the neopentyl glycol to the dipropylene glycol is 1: 5.5; the catalyst is stannous octoate and N, N-dimethylbenzylamine, and the weight ratio is 1: 1.3; the weight ratio of the castor oil to the aromatic oil is 6: 1; the raw material of the component B also comprises fumed silica and kaolin, and the weight ratio of the fumed silica to the calcined kaolin to the aromatic oil is 1: 7: 10; the silane coupling agent is gamma-glycidol ether oxygen propyl trimethoxy silane; the flame retardant is tris (2-chloroethyl) phosphate; the drying agent is oxazolidine and a molecular sieve, and the weight ratio is 1: 1; the antistatic agent is polyoxyethylene sorbitol hexaoleate;
the preparation method of the environment-friendly efficient cold-patch adhesive comprises the following steps:
(1) weighing the raw materials in proportion, and preserving and sealing the isocyanate composition by inert gas to obtain a component A;
(2) putting castor oil, an alcohol chain extender and a flame retardant into a reaction kettle, and dehydrating at 105 ℃ in vacuum until the moisture mass content is below 0.05% to obtain a first mixture;
(3) and then cooling the first mixture to 70 ℃, sequentially adding the rest raw materials into the first mixture, uniformly stirring, discharging, grinding for 3 times by a colloid mill or a three-roll grinder, and sealing and storing to obtain the component B.
Example 2
An environment-friendly high-efficiency cold-patch adhesive comprises a component A and a component B; the raw material of the A component comprises an isocyanate composition; the component B comprises raw materials, by weight, 5% of an alcohol chain extender, 0.1% of a silane coupling agent, 10% of a flame retardant, 1% of a drying agent, 0.5% of carbon black, 0.1% of a catalyst, 0.5% of an antistatic agent and the balance of a solvent, wherein the solvent is castor oil and aromatic oil;
the weight ratio of the component A to the component B is 1: 1.5; the isocyanate composition is polymeric MDI and MDI, and the weight ratio of the polymeric MDI to the MDI is 4: 1, the polymeric MDI is korean brocade lake mitsui polymeric MDI, MDI-100, purchased from ten thousand warfarin chemical group, inc; the alcohol chain extender is a combination of 1,1 '- (phenylimino) bis-2-propanol and neopentyl glycol, and the weight ratio of the neopentyl glycol to the 1, 1' - (phenylimino) bis-2-propanol is 1: 3; the catalyst is stannous octoate and N, N-dimethylbenzylamine, and the weight ratio is 1: 1; the weight ratio of the castor oil to the aromatic oil is 2: 1, the castor oil is purchased from health industry and trade company Limited in Dongying City, refined castor oil, and the aromatic oil is purchased from balance water science oil chemical trade company Limited, environment-friendly aromatic oil; the raw material of the component B also comprises fumed silica and kaolin, and the weight ratio of the fumed silica to the calcined kaolin to the aromatic oil is 1: 7: 10; the silane coupling agent is gamma-glycidol ether oxygen propyl trimethoxy silane; the flame retardant is tris (2-chloroethyl) phosphate; the drying agent is oxazolidine and a molecular sieve, and the weight ratio is 1: 0.5; the antistatic agent is polyoxyethylene sorbitol hexaoleate;
the preparation method of the environment-friendly efficient cold-patch adhesive comprises the following steps:
(1) weighing the raw materials in proportion, and preserving and sealing the isocyanate composition by inert gas to obtain a component A;
(2) putting castor oil, an alcohol chain extender and a flame retardant into a reaction kettle, and dehydrating at 100 ℃ in vacuum until the moisture mass content is below 0.05% to obtain a first mixture;
(3) and then cooling the first mixture to 50 ℃, sequentially adding the rest raw materials into the first mixture, uniformly stirring, discharging, grinding for 2 times by a colloid mill or a three-roll grinder, and sealing and storing to obtain the component B.
Example 3
An environment-friendly high-efficiency cold-patch adhesive comprises a component A and a component B; the raw material of the A component comprises an isocyanate composition; the component B comprises the raw materials of, by weight, 10% of an alcohol chain extender, 1% of a silane coupling agent, 15% of a flame retardant, 5% of a drying agent, 1.5% of carbon black, 1% of a catalyst, 1.5% of an antistatic agent and the balance of a solvent, wherein the solvent is castor oil and aromatic oil;
the weight ratio of the component A to the component B is 1: 5.5; the isocyanate composition is MDI-100, purchased from Wanhuawanhua chemical group, Inc.; the alcohol chain extender is a combination of dipropylene glycol and 2,2, 4-trimethyl-1, 3-pentanediol, and the weight ratio of the 2,2, 4-trimethyl-1, 3-pentanediol to the dipropylene glycol is 1: 8; the catalyst is stannous octoate and N, N-dimethylbenzylamine, and the weight ratio is 1: 1.5; the weight ratio of the castor oil to the aromatic oil is 10: 1, the castor oil is purchased from health industry and trade company Limited in Dongying City, refined castor oil, and the aromatic oil is purchased from balance water science oil chemical trade company Limited, environment-friendly aromatic oil; the raw material of the component B also comprises fumed silica and kaolin, and the weight ratio of the fumed silica to the calcined kaolin to the aromatic oil is 1: 3: 5; the silane coupling agent is gamma-glycidol ether oxygen propyl trimethoxy silane; the flame retardant is tris (2-chloroethyl) phosphate; the drying agent is oxazolidine and a molecular sieve, and the weight ratio is 1: 1.5; the antistatic agent is polyoxyethylene sorbitol hexaoleate;
the preparation method of the environment-friendly efficient cold-patch adhesive comprises the following steps:
(1) weighing the raw materials in proportion, and preserving and sealing the isocyanate composition by inert gas to obtain a component A;
(2) putting castor oil, an alcohol chain extender and a flame retardant into a reaction kettle, and dehydrating under vacuum at 110 ℃ until the moisture mass content is below 0.05% to obtain a first mixture;
(3) and then cooling the first mixture to 80 ℃, sequentially adding the rest raw materials into the first mixture, uniformly stirring, discharging, grinding for 5 times by a colloid mill or a three-roll grinder, and sealing and storing to obtain the component B.
Example 4
An environment-friendly high-efficiency cold-patch adhesive comprises a component A and a component B; the raw material of the A component comprises an isocyanate composition; the component B comprises the raw materials of 6 percent of alcohol chain extender, 0.3 percent of silane coupling agent, 12 percent of flame retardant, 2 percent of drying agent, 0.8 percent of carbon black, 0.4 percent of catalyst, 1 percent of antistatic agent and the balance of solvent according to weight percentage, wherein the solvent is castor oil and aromatic oil;
the weight ratio of the component A to the component B is 1: 3.5; the isocyanate composition is polymeric MDI with the brand of Korea Jinhu Mitsui polymeric MDI; the alcohol chain extender is a combination of dipropylene glycol and 2-methyl-2, 4-pentanediol, and the weight ratio of the 2-methyl-2, 4-pentanediol to the dipropylene glycol is 1: 4; the catalyst is stannous octoate and N, N-dimethylbenzylamine, and the weight ratio is 1: 1; the weight ratio of the castor oil to the aromatic oil is 4: 1, the castor oil is purchased from health industry and trade company Limited in Dongying City, refined castor oil, and the aromatic oil is purchased from balance water science oil chemical trade company Limited, environment-friendly aromatic oil; the raw material of the component B also comprises fumed silica and kaolin, and the weight ratio of the fumed silica to the calcined kaolin to the aromatic oil is 1: 5: 8; the silane coupling agent is gamma-glycidol ether oxygen propyl trimethoxy silane; the flame retardant is tris (2-chloroethyl) phosphate; the drying agent is oxazolidine and a molecular sieve, and the weight ratio is 1: 0.8; the antistatic agent is polyoxyethylene sorbitol hexaoleate;
the preparation method of the environment-friendly efficient cold-patch adhesive comprises the following steps:
(1) weighing the raw materials in proportion, and preserving and sealing the isocyanate composition by inert gas to obtain a component A;
(2) putting castor oil, an alcohol chain extender and a flame retardant into a reaction kettle, and dehydrating under vacuum at 110 ℃ until the moisture mass content is below 0.05% to obtain a first mixture;
(3) and then cooling the first mixture to 80 ℃, sequentially adding the rest raw materials into the first mixture, uniformly stirring, discharging, grinding for 5 times by a colloid mill or a three-roll grinder, and sealing and storing to obtain the component B.
Example 5
An environment-friendly high-efficiency cold-patch adhesive comprises a component A and a component B; the raw material of the A component comprises an isocyanate composition; the component B comprises the raw materials of, by weight, 7% of an alcohol chain extender, 0.8% of a silane coupling agent, 14% of a flame retardant, 4% of a drying agent, 1.2% of carbon black, 0.8% of a catalyst, 1.3% of an antistatic agent and the balance of a solvent, wherein the solvent is castor oil and aromatic oil;
the weight ratio of the component A to the component B is 1: 4.5; the isocyanate composition is polymeric MDI with the brand of Korea Jinhu Mitsui polymeric MDI; the alcohol chain extender is a combination of dipropylene glycol and neopentyl glycol, and the weight ratio of the neopentyl glycol to the dipropylene glycol is 1: 7; the catalyst is stannous octoate and N, N-dimethylbenzylamine, and the weight ratio is 1: 1.3; the weight ratio of the castor oil to the aromatic oil is 8: 1, the castor oil is purchased from health industry and trade company Limited in Dongying City, refined castor oil, and the aromatic oil is purchased from balance water science oil chemical trade company Limited, environment-friendly aromatic oil; the raw material of the component B also comprises fumed silica and kaolin, and the weight ratio of the fumed silica to the calcined kaolin to the aromatic oil is 1: 8: 12; the silane coupling agent is gamma-glycidol ether oxygen propyl trimethoxy silane; the flame retardant is tris (2-chloroethyl) phosphate; the drying agent is oxazolidine and a molecular sieve, and the weight ratio is 1: 1.2; the antistatic agent is polyoxyethylene sorbitol hexaoleate;
the preparation method of the environment-friendly efficient cold-patch adhesive comprises the following steps:
(1) weighing the raw materials in proportion, and preserving and sealing the isocyanate composition by inert gas to obtain a component A;
(2) putting castor oil, an alcohol chain extender and a flame retardant into a reaction kettle, and dehydrating under vacuum at 110 ℃ until the moisture mass content is below 0.05% to obtain a first mixture;
(3) and then cooling the first mixture to 80 ℃, sequentially adding the rest raw materials into the first mixture, uniformly stirring, discharging, grinding for 5 times by a colloid mill or a three-roll grinder, and sealing and storing to obtain the component B.
Example 6
An environment-friendly high-efficiency cold-patch adhesive comprises a component A and a component B; the raw material of the A component comprises an isocyanate composition; the raw materials of the component B comprise 6.5 percent of alcohol chain extender, 0.5 percent of silane coupling agent, 13 percent of flame retardant, 3 percent of drying agent, 1 percent of carbon black, 0.6 percent of catalyst, 1.2 percent of antistatic agent and the balance of solvent according to weight percentage, wherein the solvent is castor oil and aromatic oil;
the weight ratio of the component A to the component B is 1: 4; the isocyanate composition is polymeric MDI with the brand of Korea Jinhu Mitsui polymeric MDI; the alcohol chain extender is a combination of ethylene glycol and neopentyl glycol, and the weight ratio of the neopentyl glycol to the ethylene glycol is 1: 5.5; the catalyst is stannous octoate and N, N-dimethylbenzylamine, and the weight ratio is 1: 1.3; the weight ratio of the castor oil to the aromatic oil is 6: 1; the raw material of the component B also comprises fumed silica and kaolin, and the weight ratio of the fumed silica to the calcined kaolin to the aromatic oil is 1: 7: 10; the silane coupling agent is gamma-glycidol ether oxygen propyl trimethoxy silane; the flame retardant is tris (2-chloroethyl) phosphate; the drying agent is oxazolidine and a molecular sieve, and the weight ratio is 1: 1; the antistatic agent is polyoxyethylene sorbitol hexaoleate;
the preparation method of the environment-friendly efficient cold-patch adhesive comprises the following steps:
(1) weighing the raw materials in proportion, and preserving and sealing the isocyanate composition by inert gas to obtain a component A;
(2) putting castor oil, an alcohol chain extender and a flame retardant into a reaction kettle, and dehydrating at 105 ℃ in vacuum until the moisture mass content is below 0.05% to obtain a first mixture;
(3) and then cooling the first mixture to 70 ℃, sequentially adding the rest raw materials into the first mixture, uniformly stirring, discharging, grinding for 3 times by a colloid mill or a three-roll grinder, and sealing and storing to obtain the component B.
Example 7
An environment-friendly high-efficiency cold-patch adhesive comprises a component A and a component B; the raw material of the A component comprises an isocyanate composition; the raw materials of the component B comprise 6.5 percent of alcohol chain extender, 0.5 percent of silane coupling agent, 13 percent of flame retardant, 3 percent of drying agent, 1 percent of carbon black, 0.6 percent of catalyst, 1.2 percent of antistatic agent and the balance of solvent according to weight percentage, wherein the solvent is castor oil and aromatic oil;
the weight ratio of the component A to the component B is 1: 4; the isocyanate composition is polymeric MDI with the brand of Korea Jinhu Mitsui polymeric MDI; the alcohol chain extender is a combination of dipropylene glycol; the catalyst is stannous octoate and N, N-dimethylbenzylamine, and the weight ratio is 1: 1.3; the weight ratio of the castor oil to the aromatic oil is 6: 1; the raw material of the component B also comprises fumed silica and kaolin, and the weight ratio of the fumed silica to the calcined kaolin to the aromatic oil is 1: 7: 10; the silane coupling agent is gamma-glycidol ether oxygen propyl trimethoxy silane; the flame retardant is tris (2-chloroethyl) phosphate; the drying agent is oxazolidine and a molecular sieve, and the weight ratio is 1: 1; the antistatic agent is polyoxyethylene sorbitol hexaoleate;
the preparation method of the environment-friendly efficient cold-patch adhesive comprises the following steps:
(1) weighing the raw materials in proportion, and preserving and sealing the isocyanate composition by inert gas to obtain a component A;
(2) putting castor oil, an alcohol chain extender and a flame retardant into a reaction kettle, and dehydrating at 105 ℃ in vacuum until the moisture mass content is below 0.05% to obtain a first mixture;
(3) and then cooling the first mixture to 70 ℃, sequentially adding the rest raw materials into the first mixture, uniformly stirring, discharging, grinding for 3 times by a colloid mill or a three-roll grinder, and sealing and storing to obtain the component B.
Example 8
An environment-friendly high-efficiency cold-patch adhesive comprises a component A and a component B; the raw material of the A component comprises an isocyanate composition; the raw materials of the component B comprise 6.5 percent of alcohol chain extender, 0.5 percent of silane coupling agent, 13 percent of flame retardant, 3 percent of drying agent, 1 percent of carbon black, 0.6 percent of catalyst, 1.2 percent of antistatic agent and the balance of solvent by weight percentage, wherein the solvent is castor oil;
the weight ratio of the component A to the component B is 1: 4; the isocyanate composition is polymeric MDI with the brand of Korea Jinhu Mitsui polymeric MDI; the alcohol chain extender is a combination of dipropylene glycol and neopentyl glycol, and the weight ratio of the neopentyl glycol to the dipropylene glycol is 1: 5.5; the catalyst is stannous octoate and N, N-dimethylbenzylamine, and the weight ratio is 1: 1.3; the raw material of the component B also comprises fumed silica and kaolin, and the weight ratio of the fumed silica to the calcined kaolin to the aromatic oil is 1: 7: 10; the silane coupling agent is gamma-glycidol ether oxygen propyl trimethoxy silane; the flame retardant is tris (2-chloroethyl) phosphate; the drying agent is oxazolidine and a molecular sieve, and the weight ratio is 1: 1; the antistatic agent is polyoxyethylene sorbitol hexaoleate;
the preparation method of the environment-friendly efficient cold-patch adhesive comprises the following steps:
(1) weighing the raw materials in proportion, and preserving and sealing the isocyanate composition by inert gas to obtain a component A;
(2) putting castor oil, an alcohol chain extender and a flame retardant into a reaction kettle, and dehydrating at 105 ℃ in vacuum until the moisture mass content is below 0.05% to obtain a first mixture;
(3) and then cooling the first mixture to 70 ℃, sequentially adding the rest raw materials into the first mixture, uniformly stirring, discharging, grinding for 3 times by a colloid mill or a three-roll grinder, and sealing and storing to obtain the component B.
Example 9
An environment-friendly high-efficiency cold-patch adhesive comprises a component A and a component B; the raw material of the A component comprises an isocyanate composition; the raw materials of the component B comprise 6.5 percent of alcohol chain extender, 0.5 percent of silane coupling agent, 13 percent of flame retardant, 3 percent of drying agent, 1 percent of carbon black, 0.6 percent of catalyst, 1.2 percent of antistatic agent and the balance of solvent according to weight percentage, wherein the solvent is castor oil and aromatic oil;
the weight ratio of the component A to the component B is 1: 4; the isocyanate composition is polymeric MDI with the brand of Korea Jinhu Mitsui polymeric MDI; the alcohol chain extender is a combination of dipropylene glycol and neopentyl glycol, and the weight ratio of the neopentyl glycol to the dipropylene glycol is 1: 5.5; the catalyst is stannous octoate and N, N-dimethylbenzylamine, and the weight ratio is 1: 1.3; the weight ratio of the castor oil to the aromatic oil is 6: 1; the raw material of the component B also comprises kaolin, and the weight ratio of the calcined kaolin to the aromatic oil is 1: 1.5; the silane coupling agent is gamma-glycidol ether oxygen propyl trimethoxy silane; the flame retardant is tris (2-chloroethyl) phosphate; the drying agent is oxazolidine and a molecular sieve, and the weight ratio is 1: 1; the antistatic agent is polyoxyethylene sorbitol hexaoleate;
the preparation method of the environment-friendly efficient cold-patch adhesive comprises the following steps:
(1) weighing the raw materials in proportion, and preserving and sealing the isocyanate composition by inert gas to obtain a component A;
(2) putting castor oil, an alcohol chain extender and a flame retardant into a reaction kettle, and dehydrating at 105 ℃ in vacuum until the moisture mass content is below 0.05% to obtain a first mixture;
(3) and then cooling the first mixture to 70 ℃, sequentially adding the rest raw materials into the first mixture, uniformly stirring, discharging, grinding for 3 times by a colloid mill or a three-roll grinder, and sealing and storing to obtain the component B.
Example 10
An environment-friendly high-efficiency cold-patch adhesive comprises a component A and a component B; the raw material of the A component comprises an isocyanate composition; the raw materials of the component B comprise 6.5 percent of alcohol chain extender, 0.5 percent of silane coupling agent, 13 percent of flame retardant, 3 percent of drying agent, 1 percent of carbon black, 0.6 percent of catalyst, 1.2 percent of antistatic agent and the balance of solvent according to weight percentage, wherein the solvent is castor oil and aromatic oil;
the weight ratio of the component A to the component B is 1: 4; the isocyanate composition is polymeric MDI with the brand of Korea Jinhu Mitsui polymeric MDI; the alcohol chain extender is a combination of dipropylene glycol and neopentyl glycol, and the weight ratio of the neopentyl glycol to the dipropylene glycol is 1: 5.5; the catalyst is stannous octoate and N, N-dimethylbenzylamine, and the weight ratio is 1: 1.3; the weight ratio of the castor oil to the aromatic oil is 6: 1; the raw material of the component B also comprises fumed silica and kaolin, and the weight ratio of the fumed silica to the calcined kaolin to the aromatic oil is 0.5: 7: 10; the silane coupling agent is gamma-glycidol ether oxygen propyl trimethoxy silane; the flame retardant is tris (2-chloroethyl) phosphate; the drying agent is oxazolidine and a molecular sieve, and the weight ratio is 1: 1; the antistatic agent is polyoxyethylene sorbitol hexaoleate;
the preparation method of the environment-friendly efficient cold-patch adhesive comprises the following steps:
(1) weighing the raw materials in proportion, and preserving and sealing the isocyanate composition by inert gas to obtain a component A;
(2) putting castor oil, an alcohol chain extender and a flame retardant into a reaction kettle, and dehydrating at 105 ℃ in vacuum until the moisture mass content is below 0.05% to obtain a first mixture;
(3) and then cooling the first mixture to 70 ℃, sequentially adding the rest raw materials into the first mixture, uniformly stirring, discharging, grinding for 3 times by a colloid mill or a three-roll grinder, and sealing and storing to obtain the component B.
Example 11
An environment-friendly high-efficiency cold-patch adhesive comprises a component A and a component B; the raw material of the A component comprises an isocyanate composition; the raw materials of the component B comprise 6.5 percent of alcohol chain extender, 0.5 percent of silane coupling agent, 13 percent of flame retardant, 3 percent of drying agent, 1 percent of carbon black, 0.6 percent of catalyst, 1.2 percent of antistatic agent and the balance of solvent according to weight percentage, wherein the solvent is castor oil and aromatic oil;
the weight ratio of the component A to the component B is 1: 4; the isocyanate composition is polymeric MDI with the brand of Korea Jinhu Mitsui polymeric MDI; the alcohol chain extender is a combination of dipropylene glycol and neopentyl glycol, and the weight ratio of the neopentyl glycol to the dipropylene glycol is 1: 5.5; the catalyst is stannous octoate and 4-ethyl dimethyl imidazole, and the weight ratio is 1: 1.3; the weight ratio of the castor oil to the aromatic oil is 6: 1; the raw material of the component B also comprises fumed silica and kaolin, and the weight ratio of the fumed silica to the calcined kaolin to the aromatic oil is 1: 7: 10; the silane coupling agent is gamma-glycidol ether oxygen propyl trimethoxy silane; the flame retardant is tris (2-chloroethyl) phosphate; the drying agent is oxazolidine and a molecular sieve, and the weight ratio is 1: 1; the antistatic agent is polyoxyethylene sorbitol hexaoleate;
the preparation method of the environment-friendly efficient cold-patch adhesive comprises the following steps:
(1) weighing the raw materials in proportion, and preserving and sealing the isocyanate composition by inert gas to obtain a component A;
(2) putting castor oil, an alcohol chain extender and a flame retardant into a reaction kettle, and dehydrating at 105 ℃ in vacuum until the moisture mass content is below 0.05% to obtain a first mixture;
(3) and then cooling the first mixture to 70 ℃, sequentially adding the rest raw materials into the first mixture, uniformly stirring, discharging, grinding for 3 times by a colloid mill or a three-roll grinder, and sealing and storing to obtain the component B.
Example 12
An environment-friendly high-efficiency cold-patch adhesive comprises a component A and a component B; the raw material of the A component comprises an isocyanate composition; the raw materials of the component B comprise 6.5 percent of alcohol chain extender, 0.5 percent of silane coupling agent, 13 percent of flame retardant, 3 percent of drying agent, 1 percent of carbon black, 0.6 percent of catalyst, 1.2 percent of antistatic agent and the balance of solvent according to weight percentage, wherein the solvent is castor oil and aromatic oil;
the weight ratio of the component A to the component B is 1: 4; the isocyanate composition is polymeric MDI with the brand of Korea Jinhu Mitsui polymeric MDI; the alcohol chain extender is a combination of dipropylene glycol and neopentyl glycol, and the weight ratio of the neopentyl glycol to the dipropylene glycol is 1: 5.5; the catalyst is stannous octoate and N, N-dimethylbenzylamine, and the weight ratio is 1: 1.3; the weight ratio of the castor oil to the aromatic oil is 6: 1; the raw material of the component B also comprises fumed silica and kaolin, and the weight ratio of the fumed silica to the calcined kaolin to the aromatic oil is 1: 7: 10; the silane coupling agent is gamma-glycidol ether oxygen propyl trimethoxy silane; the flame retardant is tris (2-chloroethyl) phosphate; the drying agent is a molecular sieve; the antistatic agent is polyoxyethylene sorbitol hexaoleate;
the preparation method of the environment-friendly efficient cold-patch adhesive comprises the following steps:
(1) weighing the raw materials in proportion, and preserving and sealing the isocyanate composition by inert gas to obtain a component A;
(2) putting castor oil, an alcohol chain extender and a flame retardant into a reaction kettle, and dehydrating at 105 ℃ in vacuum until the moisture mass content is below 0.05% to obtain a first mixture;
(3) and then cooling the first mixture to 70 ℃, sequentially adding the rest raw materials into the first mixture, uniformly stirring, discharging, grinding for 3 times by a colloid mill or a three-roll grinder, and sealing and storing to obtain the component B.
Performance testing
The cold-patch rubbers prepared in examples 1 to 12 were used as test objects to test the hardness, tensile strength, elongation at break, and adhesion strength with rubber; the hardness was tested according to GB/T531-1992; the tensile strength and the elongation at break are tested according to GB/T528-1998; the peel strength is tested according to GB/T2790-95; the test results are shown in table 1.
The hardness measured is classified into 3 grades: a is the hardness (Shore A) when the range is 65-75; b when the hardness (Shore A) is in the range of 60-65; hardness (Shore A) is C in the range of 60 or less;
the measured tensile strength was classified into 3 grades: a is obtained when the tensile strength is within the range of 5.5-6 MPa; b when the tensile strength is within the range of 4.5-5.5 MPa; c when the tensile strength is below 4.5 MP;
the measured peel strength was classified into 3 grades: a is the peel strength of 8.0-8.5 KN/m; b when the peel strength is in the range of 7.0-8.0 KN/m; and a peel strength of C in a range of 7.0KN/m or less.
Table 1 results of performance testing
The foregoing examples are illustrative only, and serve to explain some of the features of the present disclosure. The appended claims are intended to claim as broad a scope as is contemplated, and the examples presented herein are merely illustrative of selected implementations in accordance with all possible combinations of examples. Accordingly, it is applicants' intention that the appended claims are not to be limited by the choice of examples illustrating features of the invention. And that advances in science and technology will result in possible equivalents or sub-substitutes not currently contemplated for reasons of inaccuracy in language representation, and such changes should also be construed where possible to be covered by the appended claims.
Claims (7)
1. The environment-friendly efficient cold-patch adhesive is characterized in that the raw materials comprise a component A and a component B; the raw material of the A component comprises an isocyanate composition; the raw materials of the component B comprise, by weight, 5-10% of an alcohol chain extender, 0.1-1% of a silane coupling agent, 10-15% of a flame retardant, 1-5% of a drying agent, 0.5-1.5% of carbon black, 0.1-1% of a catalyst, 0.5-1.5% of an antistatic agent and the balance of a solvent; the drying agent is oxazolidine and a molecular sieve; the catalyst is stannous octoate and N, N-dimethylbenzylamine; the solvent is castor oil and aromatic oil; the raw material of the component B also comprises fumed silica and calcined kaolin; the alcohol chain extender is dihydric alcohol with a side methyl group, and the dihydric alcohol with the side methyl group is the combination of dipropylene glycol and neopentyl glycol.
2. The environment-friendly high-efficiency cold patching adhesive as claimed in claim 1, wherein the weight ratio of the component A to the component B is 1: (1.5-5.5).
3. The environment-friendly high-efficiency cold patch according to claim 1, wherein the isocyanate composition is polymeric MDI and/or MDI.
4. The environment-friendly efficient cold patch according to claim 1, wherein the weight ratio of the castor oil to the aromatic oil is (2-10): 1.
5. the environment-friendly high-efficiency cold patching adhesive as claimed in claim 1, wherein the raw materials of the component B further comprise fumed silica and calcined kaolin; the weight ratio of the fumed silica to the calcined kaolin to the aromatic oil is 1: (3-9): (5-15).
6. The environment-friendly high-efficiency cold patching adhesive as claimed in claim 1, wherein the weight ratio of the neopentyl glycol to the dipropylene glycol is 1: (3-8).
7. The preparation method of the environment-friendly high-efficiency cold patching adhesive as claimed in any one of claims 1 to 6, which is characterized by at least comprising the following steps:
(1) preserving and sealing the isocyanate composition by inert gas to obtain a component A;
(2) putting castor oil, an alcohol chain extender and a flame retardant into a reaction kettle, and performing vacuum dehydration treatment to obtain a first mixture;
(3) and sequentially adding the rest raw materials into the first mixture, uniformly stirring, discharging and grinding to obtain the component B.
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Effective date of registration: 20200114 Address after: 034100 No. 1 Jindun Road, Yuanping Circular Economy Industrial Park, Xinzhou City, Shanxi Province Applicant after: Shanxi Tianqitong Hydraulic Co., Ltd. Applicant after: Shanxi Institute of Chemical Industry (Ltd.) Address before: 034100 No. 1 Jindun Road, Yuanping Circular Economy Industrial Park, Xinzhou City, Shanxi Province Applicant before: Shanxi Tianqitong Hydraulic Co., Ltd. |
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