CN113292947A - Quick-drying agent for polyurethane foam adhesive and application thereof - Google Patents

Quick-drying agent for polyurethane foam adhesive and application thereof Download PDF

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Publication number
CN113292947A
CN113292947A CN202110491849.3A CN202110491849A CN113292947A CN 113292947 A CN113292947 A CN 113292947A CN 202110491849 A CN202110491849 A CN 202110491849A CN 113292947 A CN113292947 A CN 113292947A
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China
Prior art keywords
drying agent
quick
polyurethane foam
cavity
glue
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CN202110491849.3A
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Chinese (zh)
Inventor
步帅
步贺
李小刚
张旺
曹艳鹏
曹景巍
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Shijiazhuang Dongxiang Chemical Co ltd
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Shijiazhuang Dongxiang Chemical Co ltd
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Priority to CN202110491849.3A priority Critical patent/CN113292947A/en
Publication of CN113292947A publication Critical patent/CN113292947A/en
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00553—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with means allowing the stock of material to consist of at least two different components
    • 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
    • C08G18/302—Water
    • 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
    • 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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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Nozzles (AREA)

Abstract

The invention discloses a quick drying agent for polyurethane foam adhesive, which comprises the following components in percentage by weight: 5-90% of accelerating agent and 95-10% of initiator, and 2-30cm of propellant gas is filled in each 100ml of quick-drying agent3. The application method of the quick-drying agent comprises the steps of filling the quick-drying agent and the polyurethane foam adhesive into a special adhesive gun for the polyurethane foam adhesive, and mixing for use. The quick drying agent is matched with the polyurethane foam adhesive for use, so that the drying rate of the polyurethane foam adhesive can be increased on the premise of not influencing the performance of the polyurethane foam adhesive, and the full drying time of the polyurethane foam adhesive is shortened to be less than ten minutes; book (I)The quick drying agent has the advantages of good effect when used at low temperature, simple components, low cost and convenient and fast use method.

Description

Quick-drying agent for polyurethane foam adhesive and application thereof
Technical Field
The invention relates to the technical field of polyurethane foam adhesive, and particularly relates to a quick-drying agent for polyurethane foam adhesive and application thereof.
Background
The polyurethane foam adhesive has excellent performances of water resistance, heat expansion resistance, cold contraction resistance, heat insulation, sound insulation and the like, and is widely used for filling and sealing side seams of building doors and windows, expansion joints of members and holes.
The drying speed of polyurethane foams is greatly influenced by the environment: the surface drying time of the polyurethane foam at the room temperature of 20 ℃ is generally within 10 minutes; the total drying time varies with the ambient temperature and humidity, and generally, the total drying time is 4-6 hours in summer, and the total drying time is 24 hours or more in an environment around zero degrees in winter. Therefore, it takes a long time to perform the secondary correction after the glue application, and it is time-consuming and labor-consuming; especially when used in a wet and cold environment, the use of polyurethane foam adhesive has more limitations and inconveniences. The existing drying aid can be frozen and cannot be used when the temperature is reduced to be below zero, so that the drying aid cannot be exerted. Therefore, there is a need for an instant drying agent for polyurethane foam, which reduces the environmental impact on the drying rate and increases the drying rate of polyurethane foam in low temperature environments in winter.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a quick drying agent for polyurethane foam adhesive and application thereof, so as to solve the problem that the drying time of the polyurethane foam adhesive is long, shorten the drying time of the polyurethane foam adhesive in a low-temperature environment in winter and reduce the influence of the environment on the drying speed of the polyurethane foam adhesive.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows.
A quick-drying agent for polyurethane foam adhesive is composed of the following components in percentage by weight: 5-90% of accelerator and 95-10% of initiator, and 2-30cm of propellant gas is filled in each 100ml of quick-drying agent3。
According to the further optimized technical scheme, the accelerator is at least one of ethylene glycol and glycerol; the propellant gas is at least one of propane, butane, dimethyl ether, isobutane, ethylene, propylene, butylene and butadiene; the initiator is deionized water.
The invention also provides application of the quick-drying agent for the polyurethane foam adhesive, and the quick-drying agent and the polyurethane foam adhesive are respectively filled into a special adhesive gun for the polyurethane foam adhesive for matching use.
According to the technical scheme, the special glue gun for polyurethane foam glue comprises a gun body, a glue injection cavity and a quick-drying agent cavity which are communicated with each other are arranged on the gun body, and a material conveying pipeline which is connected with the glue injection cavity and is commonly used for conveying a mixture of the polyurethane foam glue and the quick-drying agent is arranged at the front end of the gun body; the glue injection cavity is provided with a glue injection mechanism which is connected with the polyurethane foam glue tank body and is used for introducing polyurethane foam glue, and the quick-drying agent cavity is provided with a quick-drying agent adding mechanism which is communicated with the quick-drying agent tank body and is used for introducing a quick-drying agent; and the gun body is provided with a discharge control mechanism for sequentially controlling the discharge speed of the glue injection mechanism and the quick drying agent adding mechanism.
According to the technical scheme, the glue injection mechanism of the special polyurethane foam glue gun comprises a first cylindrical barrel communicated with the glue injection cavity and a first annular tank body fixing seat arranged at the top end of the first cylindrical barrel and matched with the polyurethane foam glue tank body, and a first blanking port is formed between the first cylindrical barrel and the glue injection cavity; a first valve is arranged on the first cylindrical barrel; the quick-drying agent adding mechanism comprises a second cylindrical barrel communicated with the quick-drying agent cavity and a second annular tank body fixing seat arranged at the top end of the second cylindrical barrel and matched with the quick-drying agent tank body, and a second blanking port is formed between the second annular tank body fixing seat and the quick-drying agent cavity; and a second valve is arranged on the second cylindrical barrel.
According to the technical scheme, the discharging control mechanism comprises a toggle wrench which is hinged with the gun body and is obliquely arranged upwards and a toggle rod which sequentially penetrates through the glue injection cavity and the quick-drying agent cavity, a first plug which is arranged in the glue injection cavity and can plug the first discharging port and a second plug which is arranged in the quick-drying agent cavity and can plug the second discharging port are fixedly arranged on the toggle rod, and a material passing gap is formed between the first plug and the bottom of the glue injection cavity; one end of the poke rod penetrates through the poking spanner and is connected with an ejector rod which is connected with the poking spanner in a butting mode, and the ejector rod is connected with a reset component which is arranged inside the gun body in a butting mode.
The technical scheme is further optimized, the rear end of the gun body is provided with an adjusting knob which is coaxial with the ejector rod and used for adjusting the stroke of the ejector rod in a threaded manner; the rear end of the gun body is provided with a hollow cavity, and the inner wall of the hollow cavity is provided with internal threads; the adjusting knob comprises a hollow connecting cylinder in threaded fit with the hollow cavity and an adjusting handle fixedly connected with the hollow connecting cylinder; the rear end of the gun body is obliquely and upwards provided with a gun handle.
According to the technical scheme, the ejector rod comprises a first post rod, a second post rod and a third post rod which are integrally connected and can move in the hollow cavity, the outer diameter of the cross section of the second post rod is larger than that of the cross section of the third post rod, and the third post rod extends into the hollow connecting cylinder;
reset assembly includes that one end and second column bar terminal surface looks butt and the other end set up the reset spring in hollow connecting cylinder is inside, and reset spring overlaps and establishes in the third column bar periphery, and reset spring's tip is provided with the connection ball with adjustment handle looks butt.
The technical scheme is further optimized, and the concrete operation steps of respectively filling the quick-drying agent and the polyurethane foam adhesive into a special adhesive gun for the polyurethane foam adhesive for matching use are as follows:
a1: adjusting the discharging speed by adjusting an adjusting handle on the glue gun;
a2: the polyurethane foam adhesive tank body and the adhesive injection mechanism are communicated, and then the quick-drying agent tank body and the quick-drying agent adding mechanism are communicated;
a3: and aligning the spray head to the spraying position, sequentially opening the first valve and the second valve, pressing the toggle wrench, and spraying a mixture of the quick-drying agent and the polyurethane foam adhesive.
Due to the adoption of the technical scheme, the technical progress of the invention is as follows.
The quick-drying agent of the polyurethane foam adhesive is used for being matched with the polyurethane foam adhesive in an adhesive gun, so that the drying speed of the polyurethane foam adhesive is not influenced by the environment. The full dry time of the polyurethane foam adhesive in the low-temperature environment in winter is shortened from more than one day to ten minutes; the accelerator ensures that the quick-drying agent can normally act even in an environment of 50 ℃ below zero, and ensures that the polyurethane foam adhesive can be completely dried in ten minutes. Therefore, after the polyurethane foam adhesive is extruded and applied, the correction process can be carried out, the construction efficiency is greatly improved, and the construction time is saved. The quick drying agent has the advantages of good effect when used at low temperature, simple components, low cost, convenient and fast use method and capability of accelerating the drying rate of polyurethane foam glue.
Drawings
FIG. 1 is a schematic view of a glue gun used in the application of the quick-drying agent of the present invention;
FIG. 2 is a cut-away view of a glue gun used in the application of the quick drying agent of the present invention;
wherein: 1. the gun body, 2, the stock, 3, ejection of compact control mechanism, 31, toggle spanner, 311, the bar hole, 32, the poker rod, 33, first jam, 34, the second jam, 35, the ejector pin, 351, first post pole, 352, the second post pole, 353, the third post pole, 36, reset assembly, 361, reset spring, 362, connecting ball, 4, adjust knob, 41, the hollow connecting tube, 42, adjusting handle, 5, injecting glue mechanism, 51, the first cylindricality barrel, 52, the first annular jar body fixing base, 53, first valve, 6, injecting glue cavity, 61, the material clearance that leads to, 7, connect the cavity, 8, the quick-drying agent adds the mechanism, 81, the second cylindricality barrel, 82, the second annular jar body fixing base, 83, the second valve, 9, the quick-drying agent cavity, 10, the material pipeline that leads to, 11, the shower nozzle.
Detailed Description
A quick-drying agent for polyurethane foam adhesive is characterized in that the quick-drying agent and the polyurethane foam adhesive are respectively filled into a special adhesive gun for the polyurethane foam adhesive for matching use, and the quick-drying agent and the polyurethane foam adhesive are combined as shown in figures 1 to 2. The quick drying agent for the polyurethane foam adhesive comprises the following components in percentage by weight: 5-90% of accelerating agent and 95-10% of initiator, and 2-30cm of propellant gas is filled in each 100ml of quick-drying agent3。
Wherein the accelerator is at least one of ethylene glycol and glycerol; the propellant gas is at least one of propane, butane, dimethyl ether, isobutane, ethylene, propylene, butylene and butadiene; the initiator is deionized water.
When the quick-drying agent for the polyurethane foam adhesive is applied, the quick-drying agent and the polyurethane foam adhesive are respectively filled into a special adhesive gun for the polyurethane foam adhesive, and the quick-drying agent and the polyurethane foam adhesive are mixed in the special adhesive gun for the polyurethane foam adhesive and then are matched for use. After the quick drying agent in the special glue gun for the polyurethane foam glue is mixed with the polyurethane foam glue, isocyanate in the polyurethane foam glue reacts with water to generate unstable carbamic acid, then the carbamic acid is decomposed into carbon dioxide and amine, and the amine reacts with the isocyanate to generate substituted urea. Water molecules can react with-NCO groups in the polyurethane foam adhesive, water is used as a chain extender or a curing agent, molecular chains are extended to form polyurea, and the polyurea is cured to form compact elastomer adhesive. The deionized water also provides conditions for rapid expansion and foaming of the polyurethane foam. The propane and the butane are used as propellant gas for pressurizing to push the quick drying agent to be sprayed and atomized, and are finally sprayed together with the polyurethane foam adhesive after being mixed, and the propane and the butane can be volatilized within seconds.
When the quick-drying agent for polyurethane foam adhesive is applied, a special adhesive gun for polyurethane foam adhesive is used, and comprises the following components: the gun comprises a gun body 1, a glue injection cavity 6, a quick-drying agent cavity 9, a material passing pipeline 10, a glue injection mechanism 5, a quick-drying agent adding mechanism 8 and a discharging control mechanism 3. The glue injection cavity 6 and the quick drying agent cavity 9 arranged on the gun body 1 are communicated with each other, and the glue injection cavity 6 and the quick drying agent cavity 9 are communicated with each other through a connecting cavity 7. The front end of the gun body 1 is provided with a spray head 11; the rear end of the gun body 1 is obliquely and upwards provided with a gun handle 2, so that the gun handle can be held by hands conveniently.
The front end of the gun body 1 is provided with a material passing pipeline 10 communicated with the glue injection cavity 6 and used for conveying a mixture of polyurethane foam and a quick-drying agent. And the glue injection cavity 6 is provided with a glue injection mechanism 5 communicated with the polyurethane foam glue tank body and used for introducing polyurethane foam glue. The glue injection mechanism 5 comprises a first cylindrical barrel 51 communicated with the glue injection cavity 6 and a first annular tank body fixing seat 52 arranged at the top end of the first cylindrical barrel 51 and assembled with the polyurethane foam glue tank body, and a first blanking port is formed between the first cylindrical barrel 51 and the glue injection cavity 6. Be provided with first valve 53 on the first cylindricality barrel 51, first valve 53 is used for controlling the break-make of first cylindricality barrel 51, and then whether control is to injecting polyurethane foam into injecting glue cavity 6.
A quick-drying agent adding mechanism 8 communicated with the quick-drying agent tank body is arranged on the quick-drying agent cavity 9 and used for introducing a quick-drying agent. The quick-drying agent adding mechanism 8 comprises a second cylindrical barrel 81 communicated with the quick-drying agent cavity 9 and a second annular tank body fixing seat 82 arranged at the top end of the second cylindrical barrel 81 and assembled with the quick-drying agent tank body, and a second blanking port is formed between the second annular tank body fixing seat 82 and the quick-drying agent cavity 9. The second cylindrical barrel 81 is provided with a second valve 83, and the second valve 83 is used for controlling the on-off of the second cylindrical barrel 81, so as to control whether to inject the quick drying agent into the quick drying agent cavity 9.
The gun body 1 is provided with a discharging control mechanism 3 for controlling the discharging speed of the glue injection mechanism 5 and the quick drying agent adding mechanism 8 in sequence. The discharging control mechanism 3 comprises a toggle wrench 31, a toggle rod 32, a first plug 33, a second plug 34, a push rod 35 and a reset component 36. The toggle wrench 31 is hinged with the gun body 1 and is arranged obliquely upwards.
The poke rod 32 sequentially penetrates through the glue injection cavity 6 and the quick drying agent cavity 9, and a first plug 33 and a second plug 34 are fixedly arranged on the poke rod 32. The first plug 33 is arranged inside the glue injection cavity 6 and can plug the first blanking port; the second plug 34 is arranged inside the quick drying agent cavity 9 and can plug the second blanking port. A material passing gap 61 is arranged between the first plug 33 and the bottom of the glue injection cavity 6, and the arranged material passing gap 61 can enable the quick-drying agent to pass through. The toggle spanner 31 is provided with a strip-shaped hole 311, one end of the toggle rod 32 penetrates through the toggle spanner 31 and is connected with a top rod 35, the top rod 35 is connected with the toggle spanner 31 in a butting mode, and the top rod 35 is connected with a reset component 36 arranged inside the gun body 1 in a butting mode.
Adjusting knob 4 is assembled to the rear end screw thread of rifle body 1, and adjusting knob 4 sets up with ejector pin 35 is coaxial for adjust the ejector pin 35 stroke, and then comes the first removal stroke that blocks up 33 and second and block up 34 of control, controls the maximum opening size of first blanking mouth and second blanking mouth, and then comes the maximum ejection of compact speed of control polyurethane foam glue and rapid-curing cutback agent.
The rear end of the gun body 1 is provided with a hollow cavity, and the inner wall of the hollow cavity is provided with an internal thread. The adjusting knob 4 comprises a hollow connecting cylinder 41 which is matched with the hollow cavity in a threaded mode and an adjusting handle 42 which is fixedly connected with the hollow connecting cylinder 41.
The push rod 35 includes a first pole 351, a second pole 352 and a third pole 353 which are integrally connected and movable in the hollow cavity, the second pole 352 has a cross-sectional outer diameter larger than that of the third pole 353, and the third pole 353 extends into the hollow connecting cylinder 41.
The reset assembly 36 includes a reset spring 361 having one end abutting against the end surface of the second rod 352 and the other end disposed inside the hollow connecting cylinder 41, the reset spring 361 is sleeved on the periphery of the third rod 353, and the end of the reset spring 361 is provided with a connecting ball 362 abutting against the adjusting handle 42.
The concrete operation steps of respectively filling the quick-drying agent and the polyurethane foam adhesive into a special adhesive gun for the polyurethane foam adhesive for matching use are as follows:
a1: the adjusting handle 42 on the glue gun is adjusted, and the maximum discharging speed is adjusted by adjusting the adjusting handle 42 on the glue gun.
A2: installing the polyurethane foam glue tank body on the glue injection mechanism 5, and communicating the polyurethane foam glue tank body with the glue injection mechanism 5; and then the quick-drying agent tank body is arranged on the quick-drying agent adding mechanism 8 and is communicated with the quick-drying agent tank body and the quick-drying agent adding mechanism 8.
A3: aim at the spraying position with shower nozzle 11, open first valve 53 and second valve 83 in proper order, press and stir spanner 31, drive ejector pin 35 by stirring spanner 31, stir pole 32, first jam 33, the second blocks up 34 and removes, open first blanking mouth and second blanking mouth, in the flash dryer enters into injecting glue cavity 6 from flash dryer cavity 9, mix with spun polyurethane foam, enter into further mixing in the material pipeline 10 afterwards, polyurethane foam after the final mixing passes through shower nozzle 11 blowout with the flash dryer.
The present invention will be described in further detail with reference to specific examples.
Example 1:
the quick-drying agent for polyurethane foam adhesive comprises 50% of ethylene glycol and 50% of deionized water, and 20cm of mixed gas of propane and butane is filled in each 100ml of the quick-drying agent3. Ethylene glycol and deionized water were added to the reactor, the temperature was raised to 50 ℃, and stirred for 3 h. Then transferring the mixture into an aerosol can, pressing an air valve, filling the mixture of propane and butane, and uniformly mixing to obtain the quick-drying agent.
Procedure used at ambient temperature-30 ℃: the discharging speed is adjusted by rotating an adjusting handle 42 on the glue gun, the polyurethane foam glue tank body is arranged on the glue injection mechanism 5, and the quick-drying agent tank body is arranged on the quick-drying agent adding mechanism 8. Then, the spray head 11 is aligned to a spraying position, the first valve 53 and the second valve 83 are sequentially opened, the toggle wrench 31 is pressed, the toggle wrench 31 drives the ejector rod 35, the toggle rod 32, the first plug 33 and the second plug 34 to move, the first blanking port and the second blanking port are opened, the quick-drying agent enters the glue injection cavity 6 from the quick-drying agent cavity 9 to be mixed with the sprayed polyurethane foam glue, then enters the material passing pipeline 10 to be further mixed, the mixed polyurethane foam glue and the quick-drying agent are sprayed out through the spray head 11, and the polyurethane foam glue after 10 minutes can be completely dried.
Example 2:
the quick-drying agent for polyurethane foam adhesive comprises 10% of ethylene glycol, 80% of glycerol and 10% of deionized water, wherein 2cm of mixed gas of dimethyl ether and isobutane is filled in each 100ml of the quick-drying agent3. Glycerol and deionized water were added to the reactor, the temperature was raised to 50 ℃, and stirred for 4 h. Then transferring the mixture into an aerosol can, pressing an air valve, filling the mixture of propane and butane, and uniformly mixing to obtain the quick-drying agent.
Procedure used at ambient temperature-30 ℃: the discharging speed is adjusted by rotating an adjusting handle 42 on the glue gun, the polyurethane foam glue tank body is arranged on the glue injection mechanism 5, and the quick-drying agent tank body is arranged on the quick-drying agent adding mechanism 8. Then, the spray head 11 is aligned to a spraying position, the first valve 53 and the second valve 83 are sequentially opened, the toggle wrench 31 is pressed, the toggle wrench 31 drives the ejector rod 35, the toggle rod 32, the first plug 33 and the second plug 34 to move, the first blanking port and the second blanking port are opened, the quick-drying agent enters the glue injection cavity 6 from the quick-drying agent cavity 9 to be mixed with the sprayed polyurethane foam glue, then enters the material passing pipeline 10 to be further mixed, the mixed polyurethane foam glue and the quick-drying agent are sprayed out through the spray head 11, and the polyurethane foam glue after 8 minutes can be completely dried.
Example 3:
the quick-drying agent for polyurethane foam adhesive comprises 5% of ethylene glycol and 95% of deionized water, wherein 30cm of mixed gas of ethylene and propylene is filled in 100ml of the quick-drying agent3. Ethylene glycol and deionized water were added to the reactor, the temperature was raised to 50 ℃, and stirred for 5 h. Then transferring the mixture into an aerosol can, pressing an air valve, filling mixed gas of ethylene and propylene, and uniformly mixing to obtain the quick-drying agent.
Procedure used at ambient temperature-30 ℃: the discharging speed is adjusted by rotating an adjusting handle 42 on the glue gun, the polyurethane foam glue tank body is arranged on the glue injection mechanism 5, and the quick-drying agent tank body is arranged on the quick-drying agent adding mechanism 8. Then, the spray head 11 is aligned to a spraying position, the first valve 53 and the second valve 83 are sequentially opened, the toggle wrench 31 is pressed, the toggle wrench 31 drives the ejector rod 35, the toggle rod 32, the first plug 33 and the second plug 34 to move, the first blanking port and the second blanking port are opened, the quick-drying agent enters the glue injection cavity 6 from the quick-drying agent cavity 9 to be mixed with the sprayed polyurethane foam glue, then enters the material passing pipeline 10 to be further mixed, finally the mixed polyurethane foam glue and the quick-drying agent are sprayed out through the spray head 11, and the polyurethane foam glue can be completely dried after 7.5 minutes.
Example 4:
the quick drying agent for polyurethane foam adhesive comprises 30% of ethylene glycol, 30% of glycerol and 40% of deionized water, wherein 100ml of the quick drying agent is filled with mixed gas of butylene and butadiene of 15cm3. Ethylene glycol and deionized water were added to the reactor, the temperature was raised to 50 ℃, and stirred for 4.5 h. Transferring into aerosol can, and pressingAnd (4) filling a gas valve with mixed gas of butylene and butadiene, and uniformly mixing to obtain the quick drying agent.
Procedure used at ambient temperature-30 ℃: the discharging speed is adjusted by rotating an adjusting handle 42 on the glue gun, the polyurethane foam glue tank body is arranged on the glue injection mechanism 5, and the quick-drying agent tank body is arranged on the quick-drying agent adding mechanism 8. Then, the spray head 11 is aligned to a spraying position, the first valve 53 and the second valve 83 are sequentially opened, the toggle wrench 31 is pressed, the toggle wrench 31 drives the ejector rod 35, the toggle rod 32, the first plug 33 and the second plug 34 to move, the first blanking port and the second blanking port are opened, the quick-drying agent enters the glue injection cavity 6 from the quick-drying agent cavity 9 to be mixed with the sprayed polyurethane foam glue, then enters the material passing pipeline 10 to be further mixed, finally the mixed polyurethane foam glue and the quick-drying agent are sprayed out through the spray head 11, and the polyurethane foam glue can be completely dried after 10 minutes.
Example 5:
the quick drying agent for polyurethane foam adhesive comprises 25% of ethylene glycol, 45% of glycerol and 30% of deionized water, wherein 100ml of the quick drying agent is filled with 10cm of mixed gas of propane, butylene and butadiene3. Ethylene glycol and deionized water were added to the reactor, the temperature was raised to 50 ℃, and stirred for 4 h. And then transferring the mixture into an aerosol can, pressing an air valve, filling mixed gas of propane, butylene and butadiene, and uniformly mixing to obtain the quick drying agent.
Procedure used at ambient temperature-30 ℃: the discharging speed is adjusted by rotating an adjusting handle 42 on the glue gun, the polyurethane foam glue tank body is arranged on the glue injection mechanism 5, and the quick-drying agent tank body is arranged on the quick-drying agent adding mechanism 8. Then, the spray head 11 is aligned to a spraying position, the first valve 53 and the second valve 83 are sequentially opened, the toggle wrench 31 is pressed, the toggle wrench 31 drives the ejector rod 35, the toggle rod 32, the first plug 33 and the second plug 34 to move, the first blanking port and the second blanking port are opened, the quick-drying agent enters the glue injection cavity 6 from the quick-drying agent cavity 9 to be mixed with the sprayed polyurethane foam glue, then enters the material passing pipeline 10 to be further mixed, finally the mixed polyurethane foam glue and the quick-drying agent are sprayed out through the spray head 11, and the polyurethane foam glue can be completely dried after 9 minutes.

Claims (9)

1. The quick drying agent for the polyurethane foam adhesive is characterized by comprising the following components in percentage by weight: 5-90% of accelerating agent and 95-10% of initiator, and 2-30cm of propellant gas is filled in each 100ml of quick-drying agent3。
2. The quick drying agent for polyurethane foam according to claim 1, characterized in that: the accelerator is at least one of glycol and glycerol; the propellant gas is at least one of propane, butane, dimethyl ether, isobutane, ethylene, propylene, butylene and butadiene; the initiator is deionized water.
3. Use of the quick-drying agent for polyurethane foam according to any one of claims 1-2, wherein the quick-drying agent and the polyurethane foam are separately loaded into a special gun for polyurethane foam and used together.
4. Use of an accelerated drying agent for polyurethane foam according to claim 3, characterized in that: the special glue gun for the polyurethane foam glue comprises a gun body (1), wherein a glue injection cavity (6) and a quick-drying agent cavity (9) which are communicated with each other are arranged on the gun body (1), and a material conveying pipeline (10) which is connected with the glue injection cavity (6) and is commonly used for conveying a mixture of the polyurethane foam glue and the quick-drying agent is arranged at the front end of the gun body (1); the glue injection cavity (6) is provided with a glue injection mechanism (5) which is connected with the polyurethane foam glue tank body and is used for introducing polyurethane foam glue, and the quick-drying agent cavity (9) is provided with a quick-drying agent adding mechanism (8) which is communicated with the quick-drying agent tank body and is used for introducing a quick-drying agent; and the gun body (1) is provided with a discharge control mechanism (3) for sequentially controlling the discharge speed of the glue injection mechanism (5) and the quick-drying agent adding mechanism (8).
5. Use of an accelerated drying agent for polyurethane foams according to claim 4, characterized in that: the glue injection mechanism (5) of the special polyurethane foam glue gun comprises a first cylindrical barrel (51) communicated with the glue injection cavity (6) and a first annular tank body fixing seat (52) arranged at the top end of the first cylindrical barrel (51) and matched with the polyurethane foam glue tank body, wherein a first blanking port is formed between the first cylindrical barrel (51) and the glue injection cavity (6); a first valve (53) is arranged on the first cylindrical barrel (51); the quick-drying agent adding mechanism (8) comprises a second cylindrical barrel (81) communicated with the quick-drying agent cavity (9) and a second annular tank body fixing seat (82) arranged at the top end of the second cylindrical barrel (81) and matched with the quick-drying agent tank body, and a second blanking port is formed between the second annular tank body fixing seat (82) and the quick-drying agent cavity (9); and a second valve (83) is arranged on the second cylindrical barrel (81).
6. Use of an accelerated drying agent for polyurethane foams according to claim 5, characterized in that: the discharging control mechanism (3) comprises a toggle wrench (31) which is hinged with the gun body (1) and is obliquely arranged upwards, and a toggle rod (32) which is sequentially arranged in the glue injection cavity (6) and the quick-drying agent cavity (9) in a penetrating manner, wherein a first plug (33) which is arranged in the glue injection cavity (6) and can plug the first blanking port and a second plug (34) which is arranged in the quick-drying agent cavity (9) and can plug the second blanking port are fixedly arranged on the toggle rod (32), and a material passing gap (61) is arranged between the first plug (33) and the bottom of the glue injection cavity (6); one end of the poke rod (32) penetrates through the poking spanner (31) and is connected with an ejector rod (35) which is connected with the poking spanner (31) in a butting mode, and the ejector rod (35) is connected with a reset component (36) which is arranged inside the gun body (1) in a butting mode.
7. Use of an accelerated drying agent for polyurethane foam according to claim 6, characterized in that: the rear end of the gun body (1) is provided with an adjusting knob (4) which is coaxial with the ejector rod (35) and is used for adjusting the stroke of the ejector rod (35) in a threaded manner; the rear end of the gun body (1) is provided with a hollow cavity, and the inner wall of the hollow cavity is provided with internal threads; the adjusting knob (4) comprises a hollow connecting cylinder (41) which is in threaded fit with the hollow cavity and an adjusting handle (42) which is fixedly connected with the hollow connecting cylinder (41); the rear end of the gun body (1) is obliquely and upwards provided with a gun handle (2).
8. Use of an accelerated drying agent for polyurethane foam according to claim 7, characterized in that: the ejector rod (35) comprises a first post rod (351), a second post rod (352) and a third post rod (353) which are integrally connected and can move in the hollow cavity, the outer diameter of the cross section of the second post rod (352) is larger than that of the cross section of the third post rod (353), and the third post rod (353) extends into the hollow connecting cylinder (41);
the reset assembly (36) comprises a reset spring (361) with one end abutted against the end face of the second post rod (352) and the other end arranged inside the hollow connecting cylinder (41), the reset spring (361) is sleeved on the periphery of the third post rod (353), and the end part of the reset spring (361) is provided with a connecting ball (362) abutted against the adjusting handle (42).
9. The application of the quick-drying agent for the polyurethane foam adhesive as claimed in claim 8, wherein the concrete operation steps of the quick-drying agent and the polyurethane foam adhesive which are respectively filled into a special adhesive gun for the polyurethane foam adhesive and are used together are as follows:
a1: the discharging speed is adjusted by adjusting an adjusting handle (42) on the glue gun;
a2: the polyurethane foam adhesive tank body and the adhesive injection mechanism (5) are communicated, and then the quick-drying agent tank body and the quick-drying agent adding mechanism (8) are communicated;
a3: the spray head (11) is aligned to a spraying position, the first valve (53) and the second valve (83) are opened in sequence, the toggle wrench (31) is pressed, and a mixture of the quick-drying agent and the polyurethane foam adhesive is sprayed out.
CN202110491849.3A 2021-05-06 2021-05-06 Quick-drying agent for polyurethane foam adhesive and application thereof Pending CN113292947A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110491849.3A CN113292947A (en) 2021-05-06 2021-05-06 Quick-drying agent for polyurethane foam adhesive and application thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110491849.3A CN113292947A (en) 2021-05-06 2021-05-06 Quick-drying agent for polyurethane foam adhesive and application thereof

Publications (1)

Publication Number Publication Date
CN113292947A true CN113292947A (en) 2021-08-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Link
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140339336A1 (en) * 2009-09-08 2014-11-20 Basef Se Method for minimizing emissions while forming a polyurethane foam
CN105801912A (en) * 2016-05-17 2016-07-27 石家庄东翔化工有限公司 External drying assisting agent matched with polyurethane foam caulking agent and preparing method and application thereof
CN205613665U (en) * 2016-05-17 2016-10-05 石家庄东翔化工有限公司 Quick -drying adhesive rifle for polyurethane foam sealing agent

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140339336A1 (en) * 2009-09-08 2014-11-20 Basef Se Method for minimizing emissions while forming a polyurethane foam
CN105801912A (en) * 2016-05-17 2016-07-27 石家庄东翔化工有限公司 External drying assisting agent matched with polyurethane foam caulking agent and preparing method and application thereof
CN205613665U (en) * 2016-05-17 2016-10-05 石家庄东翔化工有限公司 Quick -drying adhesive rifle for polyurethane foam sealing agent

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