CN101070460A - Method for preparing compounded water polyurethance adhesive capable of increasing adhesive strength - Google Patents
Method for preparing compounded water polyurethance adhesive capable of increasing adhesive strength Download PDFInfo
- Publication number
- CN101070460A CN101070460A CN 200710042209 CN200710042209A CN101070460A CN 101070460 A CN101070460 A CN 101070460A CN 200710042209 CN200710042209 CN 200710042209 CN 200710042209 A CN200710042209 A CN 200710042209A CN 101070460 A CN101070460 A CN 101070460A
- Authority
- CN
- China
- Prior art keywords
- aqueous polyurethane
- polyurethane adhesive
- preparation
- additive compound
- compound thing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention relates to a preparative method of bonding strength built water-based polyurethane adhesive agent which could increase bonding strength. The method as follows: put demonized water into slow-stirred-tank, while stirring, put synthesized surface-active agent slowly, after stir it fully, put fluorinated tenside. The proportion of fluorinated tenside, synthesized surface-active agent and demonized water is 1 to 1-5 to 2-10. Then put the former mixture and universal water-based polyurethane adhesive agent into emulsion reactor, and stir it in a high speed. This step could increase bonding strength. The advantage of this invention is not only to increase the bonding strength of adhesive agent to backing material, but also improve the levelability, wetting capacity and permeability of the adhesive agent.
Description
Technical field
The present invention relates to a kind of preparation method who improves the composite aqueous polyurethane adhesive of bond strength, be applicable to the preparation Synthetic Leather, belong to the fine chemical technology field.
Background technology
Urethane (PU) is the integral part of petrochemical complex goods, and polyurethane products are divided into foam article and non-foam goods two big classes, and the main body of non-foam goods is coating, tackiness agent, synthetic leather etc.Because urethane has that soft or hard can be regulated, wear-resisting, anti-solvent, low temperature resistant, ageing-resistant and with characteristics such as the binding property of most of materials is good, it is widely used in the whole world, develops rapidly, the rapid growth period that the development of the polyurethane industrial of China being in, annual growth surpasses 10%.
Synthetic Leather can better substitute natural leather, industries such as clothes, case and bag, sofa, shoemaking have been widely used in, Synthetic Leather all is better than artificial polyvinyl chloride leather at aspects such as the overall performance of material and feel, color and luster, elasticity, wear resistance, ventilation properties, in leatheroid, synthetic leather goods, the consumption of urethane accounts for more than 20% at present, and portion is in continuous expansion.
After the China joined WTO, relevant enterprise participates in competition in the international market gradually, environmental protection and safety in utilization to product are had higher requirement, but present domestic Synthetic Leather industry all is the basic material of solvent borne polyurethane as basic unit and surface layer basically, this class urethane is mostly with the benzene class, the toluene class, ethyl acetate, the dimethyl formamide equal solvent is as main dispersing medium, synthetic by liquid polymerization, the contained solvent of resin will account for more than 60% of amount of resin, the existence of a large amount of solvents, not only pollute the environment and the injury workers ' health of production plant, even more serious is, solvent residual in the goods in use also can constantly discharge, and further causes to the pollution of environment with to the injury of human body.
There is not the ideal substitute that any pollution and cheap water are undoubtedly the polyurethane polyureas bonding solvent.In countries such as major country of production U.S. of synthetic leather, Italy, Japan, Korea S large-scale application aqueous polyurethane replace solvents type polyurethane, along with various countries are strict day by day to the requirement of " green barrier ", with aqueous polyurethane replace solvents type polyurethane is imperative act, and China is also without exception.
Water-content in the various aqueous polyurethanes all is not less than 50%～60%, when comprising large quantity of moisture like this, aqueous polyurethane is when being applied to the synthetic leather goods, compare with solvent borne polyurethane, there is open defect, because one of base mateiral of Synthetic Leather is a non-woven fabrics, its raw material mainly is a terylene, nylon, polyvinyl chloride fibre, vinylon, viscose fiber etc., terylene large usage quantity wherein, and the shortcoming of terylene exactly be exactly hygroscopic property poor (0.4%～0.5%), soak into relatively difficulty, be to generally acknowledge achromatic base material in the textile industry, with the solvent phase ratio, the surface tension of water molecules is bigger, so aqueous polyurethane emulsion is relatively poor to the infiltration of base material, levelling is difficult, its consequence is that the sizing material dispersion is inhomogeneous, infiltration is not enough, causes bond strength to descend.
Summary of the invention
The purpose of this invention is to provide a kind of preparation method who improves the composite aqueous polyurethane adhesive of bond strength.
For realizing above purpose, technical scheme of the present invention provides a kind of preparation method who improves the composite aqueous polyurethane adhesive of bond strength, it is characterized in that, adds the additive compound thing in general aqurous ployurethane tackiness agent, and its method is:
The first step. the additive compound thing is prepared, the weight proportion of each raw material: fluorochemical surfactant: synthetic surface
Promoting agent: deionized water is 1: 1-5: 2-10;
Second step. additive compound thing preparation: in low speed stirring kettle, add deionized water earlier, under 400-600 rev/min of stirring, slowly add synthetic surfactant earlier, after stirring, slowly add fluorochemical surfactant again;
The 3rd step. the preparation of composite aqueous polyurethane adhesive: in having the emulsion reactor of high shear force with 100: after the ratio of 2.5-10 adds the additive compound thing of general aqurous ployurethane tackiness agent and the preparation of second step, rotating speed is brought up to 10000～12000 rev/mins, stir and make composite aqueous polyurethane adhesive after 10～15 minutes.
Described fluorochemical surfactant is a perfluoro capryl acid amides Soxylat A 25-7, or N-ethyl perfluorinated octyl sulfuryl amine Soxylat A 25-7, or perfluorocarboxylic acid acid amides polyoxyethylene ether alcohol, or perfluoroalkyl mercaptan Volpo S 10.
Described synthetic surfactant is a sodium methylene bis-naphthalene sulfonate, or sodium butylnaphthalenesulfonate, or the succinate sodium sulfonate, and C
16-C
18Fatty alcohol-polyoxyethylene ether methyl-monosilane, or C
12Aliphatic alcohol polyethenoxy (3,7) ether is appointed and is got a kind of Sulfonates and a kind of polyethenoxy ether class chemical pairing use.
The present invention is by adding the compound that chemical substance constituted that some has specific function, the composite aqueous polyurethane adhesive that utilizes its synergistic effect to make both can effectively improve the bond strength to base material, can make material quick levelling on base material again, and rapid permeability is in the space of base material inside, form " anchor chain " structure, it has improved levelling property, wetting property and the perviousness of aqueous polyurethane adhesive simultaneously, and its price is also cheaper.
Embodiment
The invention will be further described below in conjunction with embodiment.
Embodiment one
1. raw material
Fluorochemical surfactant is selected perfluoroalkyl mercaptan Volpo S 10 for use
Synthetic surfactant is selected succinate sodium sulfonate and C for use
12Aliphatic alcohol polyethenoxy (3,7) ether;
Deionized water
General aqueous polyurethane adhesive
2. plant and instrument:
Low speed stirring kettle, the high-shear emulsifying reactor
3. the preparation method that can improve the composite aqueous polyurethane adhesive of bond strength is:
The first step. the additive compound thing is prepared,
Perfluoroalkyl mercaptan Volpo S 10 6 grams
Succinate sodium sulfonate 10 grams
C
12Aliphatic alcohol polyethenoxy (3,7) ether 2 grams
Deionized water 40 grams;
Second step. the preparation of additive compound thing
Deionized water is added in the low speed stirring kettle, and the control rotating speed is 150 rev/mins, slowly adds synthetic surfactant C
12Aliphatic alcohol polyethenoxy (3,7) ether and succinate sodium sulfonate, thing to be added slowly add fluorochemical surfactant perfluoroalkyl mercaptan Volpo S 10 after stirring, dissolving fully again, stir the preparation of promptly finishing this additive compound thing after 5～10 minutes;
The 3rd step. the preparation of composite aqueous polyurethane adhesive
In having the emulsion reactor of high shear force, add the general aqueous polyurethane tackiness agent of 1000 grams, under 150 rev/mins of rotating speeds, add additive compound thing with the preparation of second step, then rotating speed is brought up to 10000～12000 rev/mins, kept 10～15 minutes, the gained material is the composite aqueous polyurethane adhesive that can improve bond strength.
Embodiment 2
1. raw material
Fluorochemical surfactant is selected perfluorocarboxylic acid acid amides polyoxyethylene ether alcohol for use
Synthetic surfactant is selected sodium methylene bis-naphthalene sulfonate and fatty alcohol-polyoxyethylene ether methyl-monosilane for use;
Deionized water
General aqueous polyurethane adhesive
2. plant and instrument:
Low speed stirring kettle, the high-shear emulsifying reactor.
3. the preparation method that can improve the composite aqueous polyurethane adhesive of bond strength is:
The first step. the additive compound thing is prepared,
Perfluorocarboxylic acid acid amides polyoxyethylene ether alcohol 5 grams
Sodium methylene bis-naphthalene sulfonate 8 grams
C
16-C
18Fatty alcohol-polyoxyethylene ether methyl-monosilane 7 grams
Deionized water 40 grams;
Second step. the preparation of additive compound thing
Deionized water is added in the low speed stirring kettle, and the control rotating speed is 150 rev/mins, slowly adds synthetic surfactant C
16-C
18Fatty alcohol-polyoxyethylene ether methyl-monosilane and sodium methylene bis-naphthalene sulfonate, thing to be added slowly add perfluorocarboxylic acid acid amides polyoxyethylene ether alcohol after stirring, dissolving fully again, stir the preparation of promptly finishing this additive compound thing after 5～10 minutes;
The 3rd step. the preparation of composite aqueous polyurethane adhesive
In having the emulsion reactor of high shear force, add the general aqueous polyurethane tackiness agent of 1000 grams, under 150 rev/mins of rotating speeds, add additive compound thing with the preparation of second step, then rotating speed is brought up to 10000～12000 rev/mins, kept 10～15 minutes, the gained material is the composite aqueous polyurethane adhesive that can improve bond strength.
4. result of use and evaluation method thereof
The main means of estimating the tackiness agent bond properties are the mensuration of stripping strength, and stripping strength is that adhesive face is peeled off the required power of time unit's specimen width, generally is unit with N/cm.Different bonding materials should be selected different peel strength test methods for use, and we select for use the T type stripping strength assay method that is fit to the leatheroid base material to estimate the composite aqueous polyurethane adhesive of the present invention's preparation and the woven dacron result of use when bonding.
Testing tool equipment: the tensile testing machine that has the graphic recording device
Testing method: with reference to the GB8808-88 method.
Stripping strength (σ b) is calculated: in the σ b=K/b formula:
The represented lifting capacity N of center line average on K power-distance Curve figure
B test piece width cm (the standard test specimen width is 3cm)
Test result:
| Stripping strength (probe temperature) | Do not use the general aqueous polyurethane adhesive of additive compound thing | Embodiment 1 | Embodiment 2 |
| σb(23℃) | 7.6 | 9.3 | 9.6 |
Can see that by last table when being used for synthetic leather base material (various fabric), the composite aqueous polyurethane adhesive of the present invention's preparation is higher by 20% to 25% than the stripping strength of general aqueous polyurethane adhesive.
Claims (3)
1. the preparation method that can improve the composite aqueous polyurethane adhesive of bond strength is characterized in that, adds the additive compound thing in general aqurous ployurethane tackiness agent, and its method is:
The first step. the additive compound thing is prepared, and the weight proportion of each raw material: fluorochemical surfactant: synthetic surfactant: deionized water is 1: 1-5: 2-10;
Second step. additive compound thing preparation: in low speed stirring kettle, add deionized water earlier, under 400-600 rev/min of stirring, slowly add synthetic surfactant earlier, after stirring, slowly add fluorochemical surfactant again;
The 3rd step. composite aqueous polyurethane adhesive preparation: with the additive compound thing: the weight proportion of general aqueous polyurethane adhesive is 2.5-10: the additive compound thing that 100 ratio prepares general aqurous ployurethane tackiness agent and second step is added in having the emulsion reactor of high shear force;
Then, rotating speed is brought up to 10000～12000 rev/mins, stir and make composite aqueous polyurethane adhesive after 10～15 minutes.
2. a kind of preparation method who improves the composite aqueous polyurethane adhesive of bond strength according to claim 1, it is characterized in that, described fluorochemical surfactant is a perfluoro capryl acid amides Soxylat A 25-7, or N-ethyl perfluorinated octyl sulfuryl amine Soxylat A 25-7, or perfluorocarboxylic acid acid amides polyoxyethylene ether alcohol, or perfluoroalkyl mercaptan Volpo S 10.
3. a kind of preparation method who improves the composite aqueous polyurethane adhesive of bond strength according to claim 1, it is characterized in that, described synthetic surfactant is a sodium methylene bis-naphthalene sulfonate, or sodium butylnaphthalenesulfonate, or the succinate sodium sulfonate is appointed and got a kind of and C
16-C
18Fatty alcohol-polyoxyethylene ether methyl-monosilane, or C
12Aliphatic alcohol polyethenoxy (3,7) ether is appointed and is got a kind of pairing and use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710042209 CN101070460A (en) | 2007-06-19 | 2007-06-19 | Method for preparing compounded water polyurethance adhesive capable of increasing adhesive strength |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710042209 CN101070460A (en) | 2007-06-19 | 2007-06-19 | Method for preparing compounded water polyurethance adhesive capable of increasing adhesive strength |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101070460A true CN101070460A (en) | 2007-11-14 |
Family
ID=38897879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710042209 Pending CN101070460A (en) | 2007-06-19 | 2007-06-19 | Method for preparing compounded water polyurethance adhesive capable of increasing adhesive strength |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101070460A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101717606B (en) * | 2009-12-02 | 2012-03-28 | 中钞特种防伪科技有限公司 | Adhesion force promoter composition, preparation method and application thereof |
| CN106920991A (en) * | 2015-12-25 | 2017-07-04 | 张家港市国泰华荣化工新材料有限公司 | A kind of lithium battery electrolytes and lithium battery for improving wellability |
| CN117417571A (en) * | 2023-10-19 | 2024-01-19 | 南京亨瑞斯新材料科技有限公司 | Method for manufacturing food packaging material for water-absorbing thermoforming |
-
2007
- 2007-06-19 CN CN 200710042209 patent/CN101070460A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101717606B (en) * | 2009-12-02 | 2012-03-28 | 中钞特种防伪科技有限公司 | Adhesion force promoter composition, preparation method and application thereof |
| CN106920991A (en) * | 2015-12-25 | 2017-07-04 | 张家港市国泰华荣化工新材料有限公司 | A kind of lithium battery electrolytes and lithium battery for improving wellability |
| CN117417571A (en) * | 2023-10-19 | 2024-01-19 | 南京亨瑞斯新材料科技有限公司 | Method for manufacturing food packaging material for water-absorbing thermoforming |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101620120B1 (en) | Garment bands including polymer compositions | |
| KR100822641B1 (en) | Textile coating method with water urethane emulsion | |
| CN101497747B (en) | Red reactive dye composition and application thereof | |
| CN105813491B (en) | The bodily form with discontinuous elastomeric polymer composition enhances clothing | |
| CN102212183A (en) | Polyurethane resin used for skin-imitated superfine fiber synthetic leather, and preparation method thereof | |
| JP2014040109A (en) | Laminated fiber cloth structure | |
| BRPI0813023A2 (en) | compositions comprising an aqueous dispersion of polyurethane and method of preparing the aqueous dispersion of polyurethane | |
| CN106833940B (en) | Anti- staining laundry detergents, anti-staining liquid detergent and anti-staining laundry cloth | |
| CN102505485B (en) | Hair slip prevention finishing agent and finishing method for rabbit hair fabric | |
| KR20130101593A (en) | Solvent free aqueous polyurethane dispersions and shaped articles therefrom | |
| CN101906717B (en) | Product turning liquid into printing and production method thereof | |
| US20100063197A1 (en) | Compositions and methods for imparting water and oil repellency to fibers and articles thereof | |
| EP2337818A2 (en) | Aqueous polyurethaneurea compositions including dispersions and films | |
| CN101070460A (en) | Method for preparing compounded water polyurethance adhesive capable of increasing adhesive strength | |
| CN108004696B (en) | A kind of pigment auxiliary agent and its preparation method and application of no sewage nanometer printing and dyeing | |
| CN104404790A (en) | Difficult-to-fade dye formula | |
| CN106065534A (en) | A kind of water dyeing agent and preparation method thereof | |
| CN104975521A (en) | Waterborne polyurethane latex emulsion for nylon fabric and preparation method thereof | |
| CN105088757A (en) | Preparation method of printing and dyeing finishing agent used for fabric | |
| JP6712378B2 (en) | Bonding material and fibrous structure for fibrous structure | |
| KR20220007625A (en) | Transfer Printable Elastic Dispersion Comprising Solid Low Melting Powder | |
| CN105064015A (en) | Printing and dyeing finishing agent for fabric | |
| CN205685845U (en) | Come off after a kind of washing the laminating fabric being layered | |
| CN110284285A (en) | A kind of non-aqueous dyeing method of dacron | |
| JP2021187946A (en) | Stretchable adhesive |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |