CN115197789A - Novel reactive polyurethane hot melt adhesive cleaning agent - Google Patents

Novel reactive polyurethane hot melt adhesive cleaning agent Download PDF

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Publication number
CN115197789A
CN115197789A CN202210957469.9A CN202210957469A CN115197789A CN 115197789 A CN115197789 A CN 115197789A CN 202210957469 A CN202210957469 A CN 202210957469A CN 115197789 A CN115197789 A CN 115197789A
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Prior art keywords
hot melt
melt adhesive
cleaning agent
reactive polyurethane
polyurethane hot
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CN202210957469.9A
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Inventor
于广慧
鞠镭
辛运龙
肖婷婷
陈龙
李瑶
冷璐
曲文婕
盛艳霞
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Liaoning Fixed Star Fine Chemical Co ltd
Dandong Unik Textile Ltd
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Liaoning Fixed Star Fine Chemical Co ltd
Dandong Unik Textile Ltd
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Priority to CN202210957469.9A priority Critical patent/CN115197789A/en
Publication of CN115197789A publication Critical patent/CN115197789A/en
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    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66Non-ionic compounds
    • C11D1/72Ethers of polyoxyalkylene glycols
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/18Hydrocarbons
    • C11D3/188Terpenes
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/20Organic compounds containing oxygen
    • C11D3/2003Alcohols; Phenols
    • C11D3/2006Monohydric alcohols
    • C11D3/201Monohydric alcohols linear
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/20Organic compounds containing oxygen
    • C11D3/2093Esters; Carbonates
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/26Organic compounds containing nitrogen
    • C11D3/28Heterocyclic compounds containing nitrogen in the ring
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/36Organic compounds containing phosphorus
    • C11D3/362Phosphates or phosphites
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/37Polymers
    • C11D3/3703Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3726Polyurethanes
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/37Polymers
    • C11D3/3746Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3753Polyvinylalcohol; Ethers or esters thereof
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/37Polymers
    • C11D3/3746Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3757(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions
    • C11D3/3761(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions in solid compositions
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/38Products with no well-defined composition, e.g. natural products
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/38Products with no well-defined composition, e.g. natural products
    • C11D3/382Vegetable products, e.g. soya meal, wood flour, sawdust
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/43Solvents

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

The invention discloses a novel reactive polyurethane hot melt adhesive cleaning agent, and particularly relates to the field of cleaning agents. The cleaning agent comprises 10-30% of ethylene-vinyl acetate copolymer, 1-10% of tackifying resin, 20-70% of long-chain fatty alcohol, 5-20% of polar organic solvent, 2-10% of polyether surfactant, 1-5% of methyl oleate, 1-5% of terpene compound, 1-5% of plasticizer and 0.1-1% of antioxidant. The reactive polyurethane hot melt adhesive cleaning agent can thoroughly neutralize residual NCO ends in the PUR hot melt adhesive, and polyurethane condensate is prevented from being generated in the cleaning process; the infusible precipitate generated by curing and crosslinking of the reactive polyurethane hot melt adhesive can be deeply decomposed and converted into a low molecular weight cracking mixture which can be dissolved in a cleaning adhesive system, so that the aim of completely removing the cured polyurethane is fulfilled; the reactive polyurethane hot melt adhesive cleaning agent disclosed by the invention is high in quality and low in production cost, and can well meet the increasing equipment cleaning requirements of domestic reactive polyurethane hot melt adhesive users.

Description

Novel reactive polyurethane hot melt adhesive cleaning agent
Technical Field
The invention relates to the field of cleaning agents, and particularly relates to a cleaning agent capable of sufficiently removing residual hot melt adhesive of a gluing device and polyurethane condensate which is difficult to remove in the application process of reactive Polyurethane (PUR) hot melt adhesive.
Background
Reactive polyurethane hot melts are a class of adhesives that are solvent-free and that exhibit a solid form at room temperature. The adhesive strength of the reactive polyurethane hot melt adhesive is different from that of the common hot melt adhesive, the reactive polyurethane hot melt adhesive contains isocyanate-terminated (NCO) polyurethane prepolymer, and the isocyanate-terminated (NCO) polyurethane prepolymer can react with moisture or active hydrogen substances in the air or on an adherend to form a partially crosslinked reticular structure, so that the adhesive strength, chemical resistance, heat resistance, hydrolysis resistance and other properties of the reactive polyurethane hot melt adhesive are superior to those of the common hot melt adhesive. Meanwhile, the polyurethane adhesive has the thermoplastic cold setting property of common hot melt adhesive, is simple and convenient to bond, and has the characteristics of wide range of adherends, large performance adjustability, good surface compatibility on paint surfaces and the like, and the like. The PUR hot melt adhesive has the characteristics of 100% solid content, no solvent, environmental protection and the like, and enters various new application fields along with the continuous development of the technology, so that the share of the PUR hot melt adhesive in the adhesive industry is increased, meanwhile, the sizing equipment of the PUR hot melt adhesive is gradually developed towards the diversification direction, and the thorough cleaning of the sizing equipment becomes a more prominent problem.
Generally, the known reactive polyurethane hot melt adhesive cleaning agent is mainly formed by mixing ethylene-vinyl acetate copolymer (EVA) with other resins, and the system is not well compatible with common PUR hot melt adhesives, but removes residual adhesives by mixing, diluting and transferring with the PUR hot melt adhesives. However, since the PUR hot melt adhesive has functional reactive group NCO, once the reactive group NCO is cross-linked and cured due to misoperation, improper control of environmental humidity, untimely cleaning after glue application, and the like during the use of the hot melt adhesive, infusible precipitates which are difficult to remove are generated at various positions of pipelines, rollers and the like of a glue application device, so that the glue application points of the pipelines, the rollers and the like are blocked. The common reactive polyurethane hot melt adhesive cleaning agent can not effectively clean the polyurethane condensate, and customers have to clean the polyurethane condensate in a mode of scraping, sanding, even burning at high temperature and the like which are complicated in operation and can damage the service life of equipment.
The prior Chinese patent CN102719325A discloses a novel reactive polyurethane hot melt adhesive cleaning agent; the product of the patent can thoroughly neutralize the residual NCO in the PUR hot melt adhesive, inhibit the further reaction of the functional reaction group NCO in the reactive PUR adhesive, and ensure that no polyurethane condensate can appear in the cleaning process. However, for the existing polyurethane condensate, the product of the patent does not have the treatment capacity as the common reactive polyurethane hot melt adhesive cleaning agent on the market, but the polyurethane condensate does not only appear in the cleaning process, and NCO groups can be crosslinked and cured at any time in the environment with proper humidity, so that once the conditions of misoperation, improper control of environmental humidity, untimely cleaning after glue application and the like occur in the use process of the hot melt adhesive, the polyurethane condensate can be rapidly generated in pipelines, rollers and the like of gluing equipment.
Therefore, the development of a cleaning agent capable of fully removing residual hot melt adhesive of gluing equipment and polyurethane condensate which is difficult to remove in the application process of reactive Polyurethane (PUR) hot melt adhesive solves the difficult problems in the actual cleaning process, and has great significance for hot melt adhesive enterprises and downstream customers such as automobiles, textiles, wood, electronics and other industries.
Disclosure of Invention
Therefore, the invention provides a novel reactive polyurethane hot melt adhesive cleaning agent, which aims to solve the problems that the existing reactive polyurethane hot melt adhesive cleaning agent is difficult to treat infusible precipitates generated by curing and crosslinking of reactive polyurethane hot melt adhesive, so that equipment pipelines and roller gluing points are easy to block, and the cleaning agent has to be cleaned in a mode of scraping, sanding, even high-temperature firing and the like, which are complicated in operation and can damage the service life of equipment.
Except that the long-chain fatty alcohol in the formula can also play a role in inhibiting NCO group crosslinking and curing in the cleaning process, when the reactive polyurethane hot melt adhesive residual adhesive is cleaned, the polar organic solvent in the formula can effectively penetrate through the surface layer of a cured product and firstly cracks a polyurethane polymer chain, so that other components in the formula are allowed to penetrate into the core of the cured product. The chemical structure of the polyether surfactant in the formula is similar to that of the soft segment of the polyurethane polyether, and the contact and penetration of the cleaning agent component and a single polyurethane polymer chain are facilitated.
After the cleaning agent breaks the cured skin and penetrates the core sufficiently, the combination of polyether surfactant, methyl oleate and terpene compounds can initiate swelling of the polymer matrix, provide a greater contact area between the polar solvent and the polymer chains, and further lead to polymer chain scission. The generated low molecular weight cracking products are dissolved/rinsed by the cleaning agent from the polymer matrix batch by batch under the solubilization/emulsification action of the surfactant, and finally the purpose of completely removing the polyurethane cured product is achieved.
In order to achieve the above purpose, the invention provides the following technical scheme:
the novel reactive polyurethane hot melt adhesive cleaning agent provided by the invention comprises 10-30% of ethylene-vinyl acetate copolymer, 1-10% of tackifying resin, 20-70% of long-chain fatty alcohol, 5-20% of polar organic solvent, 2-10% of polyether surfactant, 1-5% of methyl oleate, 1-5% of terpene compound, 1-5% of plasticizer and 0.1-1% of antioxidant.
Further, the ethylene-vinyl acetate copolymer contains 20-40% of vinyl acetate; as an example, it is preferably 25% to 35%;
the melt index of the ethylene-vinyl acetate copolymer is 300-600g/10min; as an example, 400 to 500g/10min is preferable.
As an example, the ethylene-vinyl acetate copolymer is preferably 20% to 30%.
Furthermore, the tackifying resin is one or more of natural resin, petroleum resin and thermoplastic elastomer; the natural resin comprises one or more of rosin resin, terpene resin and terpene phenolic resin; the thermoplastic elastomer is one or more of EVA, EAA, acrylic resin and thermoplastic polyurethane elastomer TPU;
the ring and ball softening point of the tackifying resin is less than 80 ℃.
Tackifying resins are used in the formulation in the range of 1% to 10%, by way of example, preferably 1% to 5%. The EVA copolymer and the tackifying resin are combined in the formula to adjust the melt flowability of the cleaning agent, so that the cleaning agent is fixed on a non-horizontal surface with polyurethane residual gum and cured substances, the exposure time of the residual gum and the cured substances in the cleaning agent is prolonged, and the dissolution and rinsing are accelerated.
Further, the long-chain fatty alcohol is one or more of hexadecanol, heptadecanol and octadecanol; by way of example, the preferred range of long chain fatty alcohols is 30% to 60%. Hydroxyl in the long-chain fatty alcohol can neutralize the residual NCO end in the PUR hot melt adhesive, so that the effect of the long-chain fatty alcohol in the formula is used for completely neutralizing the residual NCO end in the PUR hot melt adhesive besides being used as a solvent to participate in the dissolution and rinsing of low-molecular-weight cracking products, and the generation of new polyurethane condensate in the cleaning process is avoided.
Further, the polar organic solvent includes one or more N-substituted pyrrolidones including, but not limited to, one or more of N-methylpyrrolidone, N-ethylpyrrolidone, N-hydroxyethylpyrrolidone, N-propylpyrrolidone, N-phenylpyrrolidone, N-benzylpyrrolidone, N-cyclohexylpyrrolidone, and N-octylpyrrolidone, with a preferred range of 10% to 20% being exemplified.
Further, the polyether surfactant is C9-C20 fatty alcohol-polyoxyethylene ether; the number of ethoxy groups is 2-10; alternative polyether surfactants include Rhodasurf LA-3 and Surfonic L24-3 from Solvino Diya, surfonic TDA-3B and Surfonic L12-3 from Hounsfield, tomadol 91-2.5 from American air chemistry, and the like; the range of use in the present invention is 2% to 10%, and as an example, the range is preferably 5% to 10%.
The methyl oleate of the invention is used in the range of 1% to 5%, for example, preferably in the range of 4% to 5%.
Further, the terpene compounds are one or more of pinene, menthene, p-menthene and limonene; the range of use in the present invention is 1% to 5%, preferably 2% to 4%.
Further, the plasticizer is one or more of dibutyl phthalate, dioctyl phthalate and tributyl phosphate; the range of use in the present invention is 1% to 5%, preferably 1% to 3%.
Further, the antioxidant is antioxidant 168, antioxidant 1010 or antioxidant 1076; the range of use in the present invention is 0.1% to 1%, preferably 0.15% to 0.2%.
The invention has the following advantages:
1. the reactive polyurethane hot melt adhesive cleaning agent can thoroughly neutralize residual NCO ends in the PUR hot melt adhesive, and polyurethane condensate is prevented from being generated in the cleaning process;
2. the reactive polyurethane hot melt adhesive cleaning agent can deeply decompose infusible precipitates generated by curing and crosslinking of the reactive polyurethane hot melt adhesive, and convert the infusible precipitates into a low-molecular-weight cracking mixture which can be dissolved in a cleaning adhesive system, thereby achieving the purpose of completely removing cured polyurethane.
3. The reactive polyurethane hot melt adhesive cleaning agent disclosed by the invention is high in quality and low in production cost, and can well meet the increasing equipment cleaning requirements of domestic reactive polyurethane hot melt adhesive users.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Example 1
The embodiment provides a novel reactive polyurethane hot melt adhesive cleaning agent, and the weight ratio of each component is shown in table 1:
TABLE 1
Name of raw materials Number of copies
Ethylene-vinyl acetate copolymer (ethylene-vinyl acetate copolymer resin VA > 30%) 25
Tackifying resin (terpene phenolic resin) 5
Long chain fatty alcohol (with hexadecanol) 40
Polar organic solvent (N-methyl pyrrolidone is adopted) 10
Polyether surfactant (using Solvadoria Rhodasurf LA-3) 10
Oleic acid methyl ester 5
Terpene compounds (using menthene) 4
Plasticizer (dibutyl phthalate is adopted) 1
Antioxidant 1010 0.2
The preparation method comprises the following steps: adding long-chain fatty alcohol and an antioxidant into a reaction kettle, heating to 100 ℃, stirring and adding other raw materials in batches after the long-chain fatty alcohol and the antioxidant are completely melted, stirring at 200r/min until the raw materials are completely dissolved and uniform, cooling, granulating and packaging.
Example 2
The embodiment provides a novel reactive polyurethane hot melt adhesive cleaning agent, and the weight ratio of each component is shown in table 2:
TABLE 2
Name of raw materials Number of parts
Ethylene-vinyl acetate copolymer (ethylene-vinyl acetate copolymer resin VA > 30%) 30
Tackifying resin (petroleum resin is adopted) 5
Long chain fatty alcohol (with heptadecanol) 37
Polar organic solvent (N-ethyl pyrrolidone is adopted) 15
Polyether surfactant (using Hensmei surfionic TDA-3B) 5
Oleic acid methyl ester 4
Terpene compounds (using pinene) 3
Plasticizer (dioctyl phthalate) 1
Antioxidant 168 0.15
The preparation method comprises the following steps: adding long-chain fatty alcohol and an antioxidant into a reaction kettle, heating to 100 ℃, stirring and adding other raw materials in batches after the long-chain fatty alcohol and the antioxidant are completely melted, stirring at 200r/min until the raw materials are completely dissolved and uniform, cooling, granulating and packaging.
Example 3
The embodiment provides a novel reactive polyurethane hot melt adhesive cleaning agent, and the weight ratio of each component is shown in table 3:
TABLE 3
Figure BDA0003791945430000061
Figure BDA0003791945430000071
The preparation method comprises the following steps: adding long-chain fatty alcohol and an antioxidant into a reaction kettle, heating to 100 ℃, stirring and adding other raw materials in batches after the long-chain fatty alcohol and the antioxidant are completely melted, stirring at 200r/min until the raw materials are completely dissolved and uniform, cooling, granulating and packaging.
Test example
The comparison sample selects cleaning agent C60 special for the American Fule PUR hot melt adhesive and cleaning agent for rubber roll rubber tube gun nozzle PUR rubber neutralized in Suzhou. The test equipment adopts a roll coating film laminating machine, and the test process is as follows:
500g of cleaning agent is respectively added into a rubber conveying pipeline and a roller gap of the roll coating machine, the temperature is heated to 75-80 ℃, the cleaning agent is kept to flow in the pipeline, the roller is kept to rotate, the cleaning agent is removed after the temperature is kept for about 10 minutes, and the comparative cleaning effect is observed and shown in table 4.
TABLE 4
Time of cleaning Cleaning effect
Example 1 10min Has no residue
Example 2 10min Has no residue
Example 3 10min Has no residue
C60 10min With residual white particles
Rubber covered roller rubber tube gun nozzle PUR 10min With residual white particles
And (4) conclusion: the reactive polyurethane hot melt adhesive cleaning agent and the C60 cleaning agent in the embodiments 1-3 of the invention can complete the cleaning of residual adhesive, but the cleaning effect of the cleaning agent for PUR adhesive of the rubber roll rubber tube gun nozzle neutralized in Suzhou is poor, and the cleaning time needs to be prolonged. Residual white particles are observed on the pipe wall and the roller gluing point of the pipeline after C60 cleaning, and are polyurethane infusible substances after crosslinking and curing, and no residue is left after the reactive polyurethane hot melt adhesive cleaning agent in the embodiments 1-3 of the invention is cleaned.
From experimental test results, the cleaning effect of the reactive polyurethane hot melt adhesive cleaning agent is superior to that of a cleaning agent C60 special for the American Fule PUR hot melt adhesive and a cleaning agent for the rubber roll rubber tube gun nozzle PUR in Suzhou, and polyurethane condensate which cannot be cleaned can be cleaned.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims (10)

1. A novel reactive polyurethane hot melt adhesive cleaning agent is characterized by comprising 10% -30% of an ethylene-vinyl acetate copolymer, 1% -10% of tackifying resin, 20% -70% of long-chain fatty alcohol, 5% -20% of a polar organic solvent, 2% -10% of a polyether surfactant, 1% -5% of methyl oleate, 1% -5% of terpene compounds, 1% -5% of a plasticizer and 0.1% -1% of an antioxidant.
2. The novel reactive polyurethane hot melt adhesive cleaning agent as claimed in claim 1, wherein the ethylene-vinyl acetate copolymer contains 20-40% of vinyl acetate.
3. The novel reactive polyurethane hot melt adhesive cleaning agent according to claim 1, wherein the melt index of the ethylene-vinyl acetate copolymer is 300-600g/10min.
4. The novel reactive polyurethane hot melt adhesive cleaning agent according to claim 1, wherein the tackifying resin is one or more of natural resin, petroleum resin and thermoplastic elastomer; the natural resin comprises one or more of rosin resin, terpene resin and terpene phenolic resin; the thermoplastic elastomer is one or more of EVA, EAA, acrylic resin and thermoplastic polyurethane elastomer TPU.
5. The novel reactive polyurethane hot melt adhesive cleaning agent as claimed in claim 4, wherein the tackifying resin has a ring and ball softening point of less than 80 ℃.
6. The novel reactive polyurethane hot melt adhesive cleaning agent according to claim 1, wherein the long-chain fatty alcohol is one or more of hexadecanol, heptadecanol and octadecanol.
7. The novel reactive polyurethane hot melt adhesive cleaning agent according to claim 1, wherein the polar organic solvent is one or more of N-methylpyrrolidone, N-ethylpyrrolidone, N-hydroxyethyl pyrrolidone, N-propylpyrrolidone, N-phenylpyrrolidone, N-benzylpyrrolidone, N-cyclohexylpyrrolidone and N-octylpyrrolidone.
8. The novel reactive polyurethane hot melt adhesive cleaning agent according to claim 7, wherein the polyether surfactant is C9-C20 fatty alcohol-polyoxyethylene ether; the number of ethoxy groups is 2-10.
9. The novel reactive polyurethane hot melt adhesive cleaning agent as claimed in claim 1, wherein the terpene compound is one or more of pinene, menthene, p-menthene and limonene.
10. The novel reactive polyurethane hot melt adhesive cleaning agent according to claim 1, wherein the plasticizer is one or more of dibutyl phthalate, dioctyl phthalate and tributyl phosphate.
CN202210957469.9A 2022-08-10 2022-08-10 Novel reactive polyurethane hot melt adhesive cleaning agent Pending CN115197789A (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5348680A (en) * 1991-11-27 1994-09-20 H. B. Fuller Licensing & Financing, Inc. Cleaning composition for removing reactive polyurethane hot melt adhesives
US20060186379A1 (en) * 2005-02-10 2006-08-24 Coleman Kenneth C Composition and method using same to remove urethane products from a substrate
CN102719325A (en) * 2012-06-26 2012-10-10 中国科学院理化技术研究所嘉兴工程中心 Novel reactive-type polyurethane hot-melt adhesive cleaning agent

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5348680A (en) * 1991-11-27 1994-09-20 H. B. Fuller Licensing & Financing, Inc. Cleaning composition for removing reactive polyurethane hot melt adhesives
US20060186379A1 (en) * 2005-02-10 2006-08-24 Coleman Kenneth C Composition and method using same to remove urethane products from a substrate
CN102719325A (en) * 2012-06-26 2012-10-10 中国科学院理化技术研究所嘉兴工程中心 Novel reactive-type polyurethane hot-melt adhesive cleaning agent

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