CN116120590A - Water-based petroleum resin emulsion, preparation method thereof, water-based adhesive and application thereof - Google Patents

Water-based petroleum resin emulsion, preparation method thereof, water-based adhesive and application thereof Download PDF

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Publication number
CN116120590A
CN116120590A CN202310137709.5A CN202310137709A CN116120590A CN 116120590 A CN116120590 A CN 116120590A CN 202310137709 A CN202310137709 A CN 202310137709A CN 116120590 A CN116120590 A CN 116120590A
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China
Prior art keywords
petroleum resin
aqueous
water
emulsion
resin emulsion
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CN202310137709.5A
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Chinese (zh)
Inventor
陈桂卿
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Shanghai Yongguan Zhongcheng New Material Technology Group Co ltd
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Shanghai Yongguan Zhongcheng New Material Technology Group Co ltd
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Priority to CN202310137709.5A priority Critical patent/CN116120590A/en
Publication of CN116120590A publication Critical patent/CN116120590A/en
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
    • C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
    • C08J3/07—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media from polymer solutions
    • 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
    • C09J107/00—Adhesives based on natural rubber
    • C09J107/02—Latex
    • 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
    • C09J109/00—Adhesives based on homopolymers or copolymers of conjugated diene hydrocarbons
    • C09J109/06—Copolymers with styrene
    • C09J109/08—Latex
    • 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
    • C09J157/00—Adhesives based on unspecified polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C09J157/02—Copolymers of mineral oil hydrocarbons
    • 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
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/22—Plastics; Metallised plastics
    • C09J7/24—Plastics; Metallised plastics based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • C09J7/245—Vinyl resins, e.g. polyvinyl chloride [PVC]
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2357/00—Characterised by the use of unspecified polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C08J2357/02—Copolymers of mineral oil hydrocarbons
    • 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
    • C09J2427/00—Presence of halogenated polymer
    • C09J2427/006—Presence of halogenated polymer in the substrate

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

The invention provides a water-based petroleum resin emulsion, a preparation method thereof, a water-based adhesive and application thereof, and relates to the technical field of adhesives. The aqueous petroleum resin emulsion prepared by the invention has good water solubility and stability, one drop of petroleum resin emulsion is taken and added into pure water in a dropwise manner, the petroleum resin emulsion can be rapidly dispersed, and the petroleum resin emulsion can be completely dispersed into water after stirring to form milky suspension. After the emulsion is left for 6 months, the emulsion is not demulsified and can still be used. The PVC adhesive tape for the wire harness, which is produced by coating the aqueous adhesive on the PVC substrate and is prepared from the aqueous petroleum resin emulsion, has the characteristics that the PVC adhesive tape meets the use requirement, the product is not lost in viscosity for more than 2 years, the VOC content can be reduced to below 10ppm, and the customer requirement is met.

Description

Water-based petroleum resin emulsion, preparation method thereof, water-based adhesive and application thereof
Technical Field
The invention relates to the technical field of adhesives, in particular to a water-based petroleum resin emulsion, a preparation method thereof, a water-based adhesive and application thereof.
Background
At present, an oily rubber adhesive is generally coated on a PVC adhesive tape, in order to dissolve and mix solid raw materials (resin, rubber and the like), an organic solvent such as toluene, xylene and the like is used in the production of the adhesive, and the weight ratio of the organic solvent can reach 80%. However, the PVC adhesive tape for the automobile wire harness has the requirement on the air quality of the whole automobile in the automobile industry, and if the oily adhesive is used in the production process of the adhesive tape, the VOC content of the adhesive tape exceeds the control standard of the whole automobile. In order to reduce the VOC residual amount, one of the solutions is to replace the raw materials (resin, rubber, etc.) dissolved in the adhesive using an organic solvent with an emulsion-type material using water as a solvent. However, most of water-soluble resin emulsions in the current market are rosin resin emulsions, and PVC adhesive tapes produced by using the same have short service life, poor water resistance, and reduced or even no viscosity with the extension of time. Petroleum resins, although having good viscosity, are difficult to emulsify.
Disclosure of Invention
The invention aims to provide a water-based petroleum resin emulsion, a preparation method thereof, a water-based adhesive and application thereof, wherein the water-based petroleum resin emulsion can be prepared from solid petroleum resin, the water-based adhesive prepared by the water-based petroleum resin emulsion is coated on a PVC adhesive tape for wire harnesses produced on a PVC substrate, the characteristics of the water-based petroleum resin emulsion meet the use requirement, the product is not lost in viscosity for more than 2 years, and the VOC content can be reduced to meet the customer requirement.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides a preparation method of a water-based petroleum resin emulsion, which comprises the following steps:
dissolving petroleum resin and an antioxidant into an organic solvent to obtain petroleum resin solution;
dissolving an emulsifying agent and an emulsion stabilizer into water to obtain an emulsifying agent aqueous solution; the emulsifier comprises sodium dodecyl diphenyl ether disulfonate or sodium dodecyl benzene sulfonate;
and adding the emulsifier aqueous solution into petroleum resin solution for emulsification to obtain the aqueous petroleum resin emulsion.
Preferably, the petroleum resin is one or more of C5 petroleum resin, C9 petroleum resin and C5/C9 petroleum resin; the solid content of the petroleum resin solution is 75-85%.
Preferably, the emulsion stabilizer comprises cellulose or polyvinyl alcohol.
Preferably, the mass of the emulsion stabilizer is 0.5-2% of the mass of the petroleum resin; the mass ratio of the total mass of the emulsifying agent and the emulsion stabilizer to the petroleum resin is (0.4-1.5): 10.
preferably, the solid content of the emulsifier aqueous solution is 20-40%.
The invention provides the aqueous petroleum resin emulsion prepared by the preparation method.
The invention provides a water-based adhesive, which comprises water-based petroleum resin emulsion, natural latex, styrene-butadiene latex and water;
the ratio of the mass of the aqueous petroleum resin emulsion to the total mass of the natural latex and the styrene-butadiene latex is (0.6-1.4) based on dry weight: 1, a step of; the mass ratio of the natural latex to the styrene-butadiene latex is 1:9-9:1;
the aqueous petroleum resin emulsion is the aqueous petroleum resin emulsion of claim 6.
Preferably, the solid content of the aqueous adhesive is 30-55%.
Preferably, the pH value of the aqueous adhesive is 9-11.
The invention provides application of the aqueous adhesive in a wire harness adhesive tape.
The invention provides a preparation method of a water-based petroleum resin emulsion, which comprises the following steps: dissolving petroleum resin and an antioxidant into an organic solvent to obtain petroleum resin solution; dissolving an emulsifying agent and an emulsion stabilizer into water to obtain an emulsifying agent aqueous solution; the emulsifier comprises sodium dodecyl diphenyl ether disulfonate or sodium dodecyl benzene sulfonate; and adding the emulsifier aqueous solution into petroleum resin solution for emulsification to obtain the aqueous petroleum resin emulsion.
The invention selects sodium dodecyl diphenyl ether disulfonate or sodium dodecyl benzene sulfonate as the emulsifier, can prepare the solid petroleum resin into water-soluble petroleum resin emulsion, and solves the difficult problem of difficult petroleum resin emulsification. The aqueous petroleum resin emulsion prepared by the invention has good water solubility and stability, one drop of petroleum resin emulsion is taken and added into pure water in a dropwise manner, the petroleum resin emulsion can be rapidly dispersed, and the petroleum resin emulsion can be completely dispersed into water after stirring to form milky suspension. After the emulsion is left for 6 months, the emulsion is not demulsified and can still be used.
The PVC adhesive tape for wire harnesses, which is produced by coating the aqueous adhesive on a PVC substrate and is prepared from the aqueous petroleum resin emulsion, has the characteristics that the use requirement is met, the product is not lost in viscosity for more than 2 years (the experiment is promoted in 2 months at 60 ℃), the VOC content can be reduced to below 10ppm, and the customer requirement is met.
Detailed Description
The invention provides a preparation method of a water-based petroleum resin emulsion, which comprises the following steps:
dissolving petroleum resin and an antioxidant into an organic solvent to obtain petroleum resin solution;
dissolving an emulsifying agent and an emulsion stabilizer into water to obtain an emulsifying agent aqueous solution; the emulsifier comprises sodium dodecyl diphenyl ether disulfonate or sodium dodecyl benzene sulfonate;
and adding the emulsifier aqueous solution into petroleum resin solution for emulsification to obtain the aqueous petroleum resin emulsion.
In the present invention, the raw materials used are commercially available products well known in the art, unless specifically described otherwise.
The invention dissolves petroleum resin and antioxidant into organic solvent to obtain petroleum resin solution.
In the present invention, the petroleum resin is preferably one or more of C5 petroleum resin, C9 petroleum resin and C5/C9 petroleum resin; the organic solvent is preferably one or more of an aromatic hydrocarbon solvent, an aliphatic hydrocarbon solvent and an alicyclic hydrocarbon solvent; specifically, the aromatic hydrocarbon solvent may be toluene, the alicyclic hydrocarbon solvent may be methylcyclohexane, cyclohexane, and the aliphatic hydrocarbon solvent may be n-hexane. In the present invention, the antioxidant is preferably a hindered phenol-based antioxidant, specifically such as antioxidant 1010. In the invention, the mass ratio of the antioxidant to the petroleum resin is preferably 1:100.
in the present invention, the dissolution is preferably performed under stirring conditions, and the stirring speed is preferably 100 to 400rpm; the invention has no special requirement on the stirring time, and can ensure complete dissolution. In the present invention, the dissolution is preferably performed at room temperature or 40 to 60 ℃. The dissolution rate is faster when carried out at 40-60 ℃. In the present invention, the solid content of the petroleum resin solution is preferably 75 to 85%. In the present invention, the content of the organic solvent in the final aqueous adhesive can be reduced from 80% to 4%.
The invention dissolves the emulsifying agent and the emulsion stabilizer into water to obtain the emulsifying agent water solution. In the present invention, the emulsifier includes sodium dodecyl diphenyl ether disulfonate or sodium dodecyl benzene sulfonate; the emulsion stabilizer preferably comprises cellulose or polyvinyl alcohol, more preferably cellulose; the cellulose is preferably hydroxyethyl cellulose. In the invention, the emulsion stabilizer is used for protecting colloid, so that emulsion is more stable, and small liquid drops are less prone to be damaged.
The emulsifier provided by the invention has a hydrophilic end and an oleophilic end, wherein the oleophilic end is combined with small droplets of the organic solvent and the resin, and the hydrophilic end contacts water, so that the small droplets can be dissolved in the water. In the present invention, the critical micelle concentration of the emulsifier aqueous solution is < 2mmol/L, preferably < 1mmol/L; the surface tension of the aqueous emulsifier solution at the critical micelle concentration is < 40mN/m, preferably < 35mN/m. In the invention, the stability of the aqueous petroleum resin emulsion prepared by the emulsifier aqueous solution meeting the requirements of the critical micelle concentration and the surface tension is good.
In the present invention, the mass of the emulsion stabilizer is preferably 0.5 to 2% of the mass of the petroleum resin, more preferably 1 to 1.5%; the mass ratio of the total mass of the emulsifier and the emulsion stabilizer to the petroleum resin is preferably (0.4 to 1.5): 10, more preferably (0.6 to 1.2): 10, more preferably (0.8 to 1.0): 10.
in the present invention, the amount of water is preferably such that the solid content of the aqueous emulsifier solution is 20 to 40%, more preferably 25 to 35%. The invention has no special requirement on the dissolution process of the sodium dodecyl diphenyl ether disulfonate and the emulsion stabilizer, and adopts the dissolution process well known in the field.
After petroleum resin solution and emulsifier aqueous solution are obtained, the emulsifier aqueous solution is added into the petroleum resin solution for emulsification, and aqueous petroleum resin emulsion is obtained.
The present invention preferably performs emulsification under stirring. In the present invention, the rotation speed of the stirring is preferably 600 to 1000rpm; the time of the emulsification is preferably 30 to 60 minutes. In the present invention, the time of emulsification means to count from the completion of the addition of the aqueous emulsifier solution. In the present invention, the emulsification is preferably performed in a dispersion plate.
After the emulsification is completed, the present invention preferably further comprises adding water to the obtained emulsion to obtain an aqueous petroleum resin emulsion. In the present invention, the solid content of the aqueous petroleum resin emulsion is preferably 40 to 50%.
The invention provides the aqueous petroleum resin emulsion prepared by the preparation method. In the present invention, the D50 particle size of the aqueous petroleum resin emulsion is 0.3 μm to 1.2. Mu.m, wherein the optimum effect is 0.3 μm to 0.8. Mu.m. The aqueous petroleum resin emulsion has good water solubility and stability, one drop of petroleum resin emulsion is taken and added into pure water in a dropwise manner, the petroleum resin emulsion can be rapidly diffused, and the petroleum resin emulsion can be completely dispersed into water after stirring to form milky suspension. After the emulsion is left for 6 months, the emulsion is not demulsified and can still be used.
The invention provides a water-based adhesive, which comprises water-based petroleum resin emulsion, natural latex, styrene-butadiene latex and water;
the ratio of the mass of the aqueous petroleum resin emulsion to the total mass of the natural latex and the styrene-butadiene latex is (0.6-1.4) based on dry weight: 1, a step of; the mass ratio of the natural latex to the styrene-butadiene latex is 1:9-9:1;
the aqueous petroleum resin emulsion is the aqueous petroleum resin emulsion according to the scheme.
In the present invention, the ratio of the mass of the aqueous petroleum resin emulsion to the total mass of the natural latex and the styrene-butadiene latex is preferably (0.7 to 1.3) on a dry weight basis: 1, more preferably (0.8 to 1.2): 1; the mass ratio of the natural latex to the styrene-butadiene latex is preferably 2:8-8:2, more preferably 4:6-6:4 based on dry weight.
In the present invention, the water is preferably used in an amount such that the solid content of the aqueous adhesive is preferably 30 to 55%, more preferably 40 to 50%; the pH of the aqueous adhesive is preferably 9 to 11, more preferably 10. The invention controls the pH value of the water-based adhesive in the above range, and aims to ensure the stability of emulsion so as to avoid emulsion breaking.
The invention provides a preparation method of the water-based adhesive, which preferably comprises the following steps: and mixing the aqueous resin emulsion, the natural latex and the styrene-butadiene latex under the stirring condition, adding pure water to adjust the solid content to a target value, and adding ammonia water to adjust the pH value to a target value to obtain the aqueous adhesive.
In the present invention, the solid content of the natural latex is preferably 62%, and the solid content of the styrene-butadiene latex is preferably 55%. In the present invention, the mass concentration of the aqueous ammonia is preferably 25%.
The invention provides application of the aqueous adhesive in a wire harness adhesive tape. The preparation method of the wire harness adhesive tape preferably comprises the following steps of: and coating the aqueous adhesive on a substrate by using a coating machine, drying, curling into an adhesive tape, and cutting the adhesive tape into a specified width to obtain the wire harness adhesive tape. In the present invention, the substrate is preferably a PVC film, PP film, PE film, PET film or PO film; the thickness of the base material is preferably 0.050 mm-0.300 mm, and the thickness of the adhesive film on the adhesive tape is preferably 0.070-0.200 mm.
The aqueous petroleum resin emulsion, the preparation method thereof, the aqueous adhesive and the application thereof provided by the invention are described in detail below with reference to examples, but they are not to be construed as limiting the scope of the invention.
Example 1
400g of C5 petroleum resin (Rayleigh R100) and 4g of antioxidant 1010 (BASF) were poured into 101g of toluene and stirred at 40℃for 8 hours at a speed of 200rpm using an IKA brand stirrer (model: european star 40 digital), to give a petroleum resin solution having a solid content of 80%.
45g of sodium dodecyl diphenyl ether disulfonate (commercial industrial product) and 5g of hydroxyethyl cellulose (commercial industrial product) were dissolved in 116.7g of water to prepare an aqueous emulsifier solution having a solid content of 30%.
And (3) increasing the rotating speed of the stirrer to 800rpm, slowly pouring the aqueous solution of the emulsifying agent into the petroleum resin solution, continuing to emulsify for 30min after the aqueous solution of the emulsifying agent is added, and adding pure water to adjust the solid content of the resin emulsion to 50% after the emulsification is completed, so as to obtain the aqueous petroleum resin emulsion.
100g of the prepared water-based petroleum resin emulsion, 40.3g of natural latex (high ammonia content in southeast Asia, 62% of solid content) and 45.5g of styrene-butadiene latex (55% of solid content) are mixed into glue at the rotating speed of 50rpm, 11.2g of pure water is added to adjust the solid content of the glue to 50%, 4g of ammonia water (25% of mass concentration) is added to adjust the pH value of the glue to 10, and the water-based adhesive is obtained.
Example 2
The only difference from example 1 is that the emulsifier sodium dodecyl diphenyloxide disulfonate is replaced by sodium dodecyl benzene sulfonate.
Comparative example 1
The only difference from example 1 is that the emulsifier sodium dodecyl diphenyloxide disulfonate is replaced by sodium n-hexylbenzenesulfonate.
Comparative example 2
The aqueous adhesive formulation was performed as in example 1, except that the aqueous petroleum resin emulsion was replaced with an outsourced rosin resin emulsion (Weis Da, model 100Y) as in example 1.
The prepared aqueous adhesive is coated on a PVC film with the thickness of 100 mu m, and the PVC film is placed in an oven at 120 ℃ for drying for 4min, so that a sample with the adhesive thickness of 15 mu m is obtained.
Table 1 formulation and performance of the example and comparative aqueous adhesives
Figure BDA0004086494800000061
In table 1, the performance test methods are as follows:
and (3) testing the emulsification effect: 1. dripping a drop of emulsion into pure water, and dispersing rapidly without floccule; 2. after standing for 6 months, the resin emulsion can still be used with glue.
And (3) water resistance test: the coated samples were exposed to 60 ℃ 80% and removed after 7 days, and the peel force (ASTM D1000) to the steel sheet was tested and did not decrease by more than 25% compared to the peel force before no humidification.
VOC testing: the headspace method of TSC 1152G is adopted, and the content of benzene, toluene, xylene, ethylbenzene and styrene is detected by using Shimadzu GC-MS for VOC test.
Aging test: the coated samples were placed in an oven at 60 c and taken out after 2 months, and the peel force (ASTM D1000) to the steel sheet was tested and did not decrease by more than 10% compared to before aging.
From the above examples, the aqueous petroleum resin emulsion prepared by the invention has good water solubility and stability, and can be used without demulsification after the emulsion is placed for 6 months. The PVC adhesive tape for wire harnesses, which is produced by coating the aqueous adhesive on a PVC substrate and is prepared from the aqueous petroleum resin emulsion, has the characteristics that the use requirement is met, the product is not lost in viscosity for more than 2 years (the experiment is promoted in 2 months at 60 ℃), the VOC content can be reduced to below 10ppm, and the customer requirement is met.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.

Claims (10)

1. The preparation method of the aqueous petroleum resin emulsion is characterized by comprising the following steps:
dissolving petroleum resin and an antioxidant into an organic solvent to obtain petroleum resin solution;
dissolving an emulsifying agent and an emulsion stabilizer into water to obtain an emulsifying agent aqueous solution; the emulsifier comprises sodium dodecyl diphenyl ether disulfonate or sodium dodecyl benzene sulfonate;
and adding the emulsifier aqueous solution into petroleum resin solution for emulsification to obtain the aqueous petroleum resin emulsion.
2. The method according to claim 1, wherein the petroleum resin is one or more of C5 petroleum resin, C9 petroleum resin and C5/C9 petroleum resin; the solid content of the petroleum resin solution is 75-85%.
3. The method of claim 1, wherein the emulsion stabilizer comprises cellulose or polyvinyl alcohol.
4. The method according to claim 1 or 3, wherein the mass of the emulsion stabilizer is 0.5 to 2% of the mass of the petroleum resin; the mass ratio of the total mass of the emulsifying agent and the emulsion stabilizer to the petroleum resin is (0.4-1.5): 10.
5. the process according to claim 4, wherein the aqueous emulsifier solution has a solids content of 20 to 40%.
6. The aqueous petroleum resin emulsion prepared by the preparation method of any one of claims 1 to 5.
7. The water-based adhesive is characterized by comprising water-based petroleum resin emulsion, natural latex, styrene-butadiene latex and water;
the ratio of the mass of the aqueous petroleum resin emulsion to the total mass of the natural latex and the styrene-butadiene latex is (0.6-1.4) based on dry weight: 1, a step of; the mass ratio of the natural latex to the styrene-butadiene latex is 1:9-9:1;
the aqueous petroleum resin emulsion is the aqueous petroleum resin emulsion of claim 6.
8. The aqueous adhesive of claim 7, wherein the aqueous adhesive has a solids content of 30 to 55%.
9. The aqueous adhesive of claim 7, wherein the aqueous adhesive has a pH of 9 to 11.
10. Use of the aqueous adhesive according to any one of claims 7 to 9 in a harness tape.
CN202310137709.5A 2023-02-20 2023-02-20 Water-based petroleum resin emulsion, preparation method thereof, water-based adhesive and application thereof Pending CN116120590A (en)

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