CN109517567B - Preparation method of water-based flocking adhesive for automobile sealing strip - Google Patents
Preparation method of water-based flocking adhesive for automobile sealing strip Download PDFInfo
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- CN109517567B CN109517567B CN201811462487.XA CN201811462487A CN109517567B CN 109517567 B CN109517567 B CN 109517567B CN 201811462487 A CN201811462487 A CN 201811462487A CN 109517567 B CN109517567 B CN 109517567B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract description 37
- 239000000853 adhesive Substances 0.000 title abstract description 27
- 230000001070 adhesive effect Effects 0.000 title abstract description 27
- 238000007789 sealing Methods 0.000 title abstract description 22
- 238000002360 preparation method Methods 0.000 title abstract description 18
- 239000000203 mixture Substances 0.000 abstract description 26
- 239000000839 emulsion Substances 0.000 abstract description 24
- 239000004814 polyurethane Substances 0.000 abstract description 20
- 229920002635 polyurethane Polymers 0.000 abstract description 18
- 238000003756 stirring Methods 0.000 abstract description 13
- -1 hydroxypropyl Chemical group 0.000 abstract description 12
- 239000003795 chemical substances by application Substances 0.000 abstract description 11
- 238000002156 mixing Methods 0.000 abstract description 11
- 125000000129 anionic group Chemical group 0.000 abstract description 10
- 239000000080 wetting agent Substances 0.000 abstract description 9
- 239000002518 antifoaming agent Substances 0.000 abstract description 8
- 239000003085 diluting agent Substances 0.000 abstract description 8
- 239000012948 isocyanate Substances 0.000 abstract description 8
- 150000002513 isocyanates Chemical class 0.000 abstract description 8
- 239000002562 thickening agent Substances 0.000 abstract description 5
- 239000012790 adhesive layer Substances 0.000 abstract description 3
- 238000001035 drying Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 5
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 229920002943 EPDM rubber Polymers 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 150000002391 heterocyclic compounds Chemical group 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 2
- ZZXUZKXVROWEIF-UHFFFAOYSA-N 1,2-butylene carbonate Chemical compound CCC1COC(=O)O1 ZZXUZKXVROWEIF-UHFFFAOYSA-N 0.000 description 1
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 1
- 241000208125 Nicotiana Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000013530 defoamer Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Seal Device For Vehicle (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention relates to a preparation method of an aqueous flocking adhesive for automobile sealing strips, which mixes a component A and a component B, wherein the preparation of the component A comprises the following steps: (a1) the preparation of the component A comprises the following steps: (a1) stirring and mixing 30-70 parts of anionic waterborne polyurethane emulsion and 30-70 parts of hydroxypropyl emulsion to obtain a first mixture; (a2) adding a water-based wetting agent and a water-based defoaming agent into the first mixture, and stirring to obtain a second mixture; (a3) adding a polyurethane-based aqueous thickener and water to the second mixture; the preparation of the component B comprises the following steps: and stirring and mixing 60-70 parts of isocyanate waterborne curing agent and 30-40 parts of reactive diluent. The adhesive can be uniformly coated on the surface of the sealing strip at 50-70 ℃, and the adhesive layer still has high viscosity although being close to surface drying.
Description
Technical Field
The invention belongs to the field of adhesives, relates to a water-based flocking adhesive, and particularly relates to a preparation method of the water-based flocking adhesive for an automobile sealing strip.
Background
The automobile flocking sealing strip mainly comprises a window side sealing strip (water cutting) and a window glass guide groove, and has the functions of sealing external wind and rain, preventing dust from entering, reducing noise, enabling glass to slide more easily and the like. At present, most of the on-line flocking adhesives applied to automobiles are single-component solvent type PU flocking adhesives, and the international famous brand (FL 852 of Lord and 98UK of Dow) occupies the leading position. Although there is an attempt to apply the water-based flocking adhesive to the on-line flocking of the automobile, due to the process particularity of the on-line flocking of the automobile, the temperature of the adhesive coating point is usually more than 50 ℃, and at the moment, the common water-based adhesive is quickly dried on the hot surface and can not finish the flocking.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a preparation method of a water-based flocking adhesive for automobile sealing strips.
In order to achieve the purpose, the invention adopts the technical scheme that: a preparation method of water-based flocking adhesive for automobile sealing strips comprises the steps of mixing a component A and a component B,
the preparation of the component A comprises the following steps: (a1) stirring and mixing 30-70 parts of anionic waterborne polyurethane emulsion and 30-70 parts of hydroxypropyl emulsion to obtain a first mixture; (a2) adding a water-based wetting agent and a water-based defoaming agent into the first mixture, and stirring to obtain a second mixture; (a3) adding a polyurethane aqueous thickener and water to the second mixture, and controlling the indexes to be as follows: the solid content is 40-45%, and the viscosity is 1000-3000 cps;
the preparation of the component B comprises the following steps: and stirring and mixing 60-70 parts of isocyanate waterborne curing agent and 30-40 parts of reactive diluent.
Optimally, the activation temperature of the anionic waterborne polyurethane emulsion is 40-60 ℃.
Optimally, the mass contents of the water-based wetting agent and the water-based defoaming agent in the second mixture are 0.1-0.5% independently.
Optimally, the hydroxyl molar content of the hydroxypropyl emulsion is 2-4%.
Preferably, the active diluent is a heterocyclic compound or a mixture of a plurality of compounds.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: according to the preparation method of the water-based flocking adhesive for the automobile sealing strip, the water-based isocyanate is used as a curing agent under the coordination of the water-based polyurethane emulsion and the hydroxypropyl emulsion, and then the adhesive is supplemented with the reactive diluent, so that the adhesive can be uniformly coated on the surface of the sealing strip at the temperature of 50-70 ℃, the adhesive layer still has high viscosity even though being close to surface drying, flocking can be still completed, and the flocking density is high, and the wear resistance and the water resistance are excellent.
Detailed Description
The preparation method of the water-based flocking adhesive for the automobile sealing strip comprises the following steps of mixing the component A and the component B (generally, NCO/OH is 1.5, and the molar ratio is adopted), and preparing the component A: (a1) stirring and mixing 30-70 parts of anionic waterborne polyurethane emulsion and 30-70 parts of hydroxypropyl emulsion to obtain a first mixture; (a2) adding a water-based wetting agent and a water-based defoaming agent into the first mixture, and stirring to obtain a second mixture; (a3) adding a polyurethane aqueous thickener and water to the second mixture, and controlling the indexes to be as follows: a solid content of 40 to 45% (mass content) and a viscosity of 1000 to 3000 cps; the preparation of the component B comprises the following steps: and stirring and mixing 60-70 parts of isocyanate waterborne curing agent and 30-40 parts of reactive diluent. By adopting the coordination effect of the water-based polyurethane emulsion and the hydroxypropyl emulsion, the water-based isocyanate is used as a curing agent, and the reactive diluent is used as an auxiliary agent, so that the adhesive can be uniformly coated on the surface of the sealing strip at 50-70 ℃, the adhesive layer still has high viscosity even if being close to surface dryness, flocking can be still completed, and the flocking density is high, and the wear resistance and the water resistance are excellent.
The activation temperature of the anionic waterborne polyurethane emulsion is preferably 40-60 ℃, and the anionic waterborne polyurethane emulsion can adopt the series of scientific wound, Wanhua tobacco station, active chemistry and the likeProducts such as U54, YX-T54 and the like (the preparation method can be referred to the literature of 'the synthesis of novel saline sulfonate polyurethane emulsion and the performance research thereof'). The hydroxyl molar content of the hydroxypropyl emulsion is 2-4%, and series products such as Corsichun, Nepetes, Tantamiun chemical and the like can be adopted. The mass contents of the water-based wetting agent and the water-based defoaming agent in the second mixture are 0.1-0.5% independently. The aqueous wetting agent is a mixture consisting of one or more of KYC642, KYC648, PE-100, X-405, TEGO Wet KL 245 and TEGO Wet 270; the aqueous antifoaming agents AT-470, DF672, BYK-019, Defom W-082 and
260 (aqueous wetting agent, aqueous defoamer, to perform the function of conventional conditioning, generally with little effect on the final properties of the aqueous glue). The polyurethane water-based thickener is a mixture consisting of one or more of RM-2020, AKN-7148, HEUR and TAFIGEL-PUR 62; the isocyanate-based aqueous curing agent is a mixture of one or more selected from Bayhudur 3100, 305, Rhodocoat WT2102, 2092, etc. The active diluent is heterocyclic compound or mixture of a plurality of compounds, such as alkylene carbonate (propylene carbonate, butylene carbonate).
The present invention will be further illustrated with reference to the following examples.
Example 1
This example provides a process for preparing an aqueous flocking adhesive for automobile sealing strips, which comprises mixing component A and component B at a molar ratio of NCO/OH of 1.5,
the preparation of the component A comprises the following steps:
(a1) stirring and mixing 50 parts of anionic waterborne polyurethane emulsion (YX-T54) and 50 parts of hydroxypropyl emulsion (Nepetes) to obtain a first mixture;
(a2) adding a water-based wetting agent (KYC642) and a water-based defoaming agent (AT-470) into the first mixture, and stirring to obtain a second mixture; the mass contents of the water-based wetting agent and the water-based defoaming agent in the second mixture are both 0.1%;
(a3) adding a polyurethane aqueous thickener (RM-2020) and water to the second mixture, and controlling the indexes as follows: the solid content is 40-45%, and the viscosity is 1000-3000 cps;
the preparation of the component B comprises the following steps: 70 parts of an isocyanate-based aqueous curing agent (Bayer 3100) and 30 parts of an active diluent (propylene carbonate) were mixed with stirring.
Example 2
This example provides a method for preparing an aqueous flocking adhesive for automobile sealing strips, which is substantially the same as that in example 1 except that: 70 parts of anionic aqueous polyurethane emulsion (YX-T54) and 30 parts of hydroxypropyl emulsion (Nepets) are stirred and mixed to obtain a first mixture.
Example 3
This example provides a method for preparing an aqueous flocking adhesive for automobile sealing strips, which is substantially the same as that in example 1 except that: 30 parts of anionic aqueous polyurethane emulsion (YX-T54) and 70 parts of hydroxypropyl emulsion (Nepets) are stirred and mixed to obtain a first mixture.
Comparative example 1
This example provides a method for preparing an aqueous flocking adhesive for automobile sealing strips, which is substantially the same as that in example 1 except that: the component A is prepared without using hydroxypropyl emulsion.
Comparative example 2
This example provides a method for preparing an aqueous flocking adhesive for automobile sealing strips, which is substantially the same as that in example 2 except that: the component A is prepared without using anionic waterborne polyurethane emulsion.
Comparative example 3
This example provides a method for preparing an aqueous flocking adhesive for automobile sealing strips, which is substantially the same as that in example 3 except that: the component B was prepared by mixing 70 parts of an isocyanate-based aqueous curing agent (Bayer 3100) and 30 parts of ethyl acetate with stirring.
The preparation of the flocking sample piece is carried out by using the aqueous flocking adhesive for the automobile sealing strip prepared in the embodiment 1-3 and the comparative example 1-3:
(1) after the EPDM test piece is scrubbed by isopropanol, the treatment agent is uniformly brushed and naturally dried for 10 min;
(2) preheating the EPDM test piece in an oven at 80 ℃ for 5min, taking out, immediately gluing and flocking (conventional process; electrostatic flocking, voltage is 3-4 kv/cm), then heating and drying at 120 ℃ for 4min, and standing at normal temperature for more than 3 days.
The flocking sample obtained above was tested according to QC/T711-2004: the width of the cutting head is 7.9 +/-0.2 mm, the curvature radius is 0.16-0.18mm, and the total load is 500g, which is shown in Table 1.
TABLE 1 Performance Table of flocked sample obtained from aqueous flocking adhesive for automobile sealing strips prepared in examples 1 to 3 and comparative examples 1 to 3
In the above table, hot air aging means standing at 70 ℃ for 46 hours; the water resistance test refers to standing at 80 ℃ for 120 hours.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the invention, and not to limit the scope of the invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention.
Claims (4)
1. A preparation method of water-based flocking adhesive for automobile sealing strips is characterized in that a component A and a component B are mixed,
the preparation of the component A comprises the following steps: (a1) stirring and mixing 30-70 parts of anionic waterborne polyurethane emulsion and 30-70 parts of hydroxypropyl emulsion to obtain a first mixture; (a2) adding a water-based wetting agent and a water-based defoaming agent into the first mixture, and stirring to obtain a second mixture; (a3) adding a polyurethane aqueous thickener and water to the second mixture, and controlling the indexes to be as follows: the solid content is 40-45%, and the viscosity is 1000-3000 cps;
the preparation of the component B comprises the following steps: stirring and mixing 60-70 parts of isocyanate waterborne curing agent and 30-40 parts of reactive diluent; the reactive diluent is one or more selected from propylene carbonate and butylene carbonate.
2. The method for preparing the aqueous flocking adhesive for the automobile sealing strip according to claim 1 is characterized in that: the activation temperature of the anionic waterborne polyurethane emulsion is 40-60 ℃.
3. The method for preparing the aqueous flocking adhesive for the automobile sealing strip according to claim 1 is characterized in that: the mass contents of the water-based wetting agent and the water-based defoaming agent in the second mixture are 0.1-0.5% independently.
4. The method for preparing the aqueous flocking adhesive for the automobile sealing strip according to claim 1 is characterized in that: the hydroxyl molar content of the hydroxypropyl emulsion is 2-4%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811462487.XA CN109517567B (en) | 2018-12-03 | 2018-12-03 | Preparation method of water-based flocking adhesive for automobile sealing strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811462487.XA CN109517567B (en) | 2018-12-03 | 2018-12-03 | Preparation method of water-based flocking adhesive for automobile sealing strip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109517567A CN109517567A (en) | 2019-03-26 |
| CN109517567B true CN109517567B (en) | 2021-02-12 |
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| CN201811462487.XA Active CN109517567B (en) | 2018-12-03 | 2018-12-03 | Preparation method of water-based flocking adhesive for automobile sealing strip |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111234758A (en) * | 2019-05-13 | 2020-06-05 | 苏州北极熊汽车用品有限公司 | Application of water-based flocking adhesive |
| CN113717665A (en) * | 2021-09-30 | 2021-11-30 | 万辉(广州)高新材料有限公司 | Method for realizing local avoidance flocking in toy flocking process |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2004016966A (en) * | 2002-06-18 | 2004-01-22 | Inoac Corp | Hair transplanting method |
| US20060160943A1 (en) * | 2005-01-18 | 2006-07-20 | Weir James P | Water-based flock adhesives for thermoplastic substrates |
| CN107695902B (en) * | 2017-10-18 | 2020-03-06 | 河北思瑞恩新材料科技有限公司 | Flocking material and preparation method thereof |
| CN107936899A (en) * | 2017-12-18 | 2018-04-20 | 东莞智炜新材料股份有限公司 | A kind of mail frame electrostatic spinning aqueous adhesive and preparation method thereof |
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