CN104962669B - Inorganic nano leather repairing agent and preparation method thereof - Google Patents
Inorganic nano leather repairing agent and preparation method thereof Download PDFInfo
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- CN104962669B CN104962669B CN201510388493.5A CN201510388493A CN104962669B CN 104962669 B CN104962669 B CN 104962669B CN 201510388493 A CN201510388493 A CN 201510388493A CN 104962669 B CN104962669 B CN 104962669B
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- repairing agent
- inorganic nano
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- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C11/00—Surface finishing of leather
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- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C11/00—Surface finishing of leather
- C14C11/003—Surface finishing of leather using macromolecular compounds
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- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
The invention discloses an inorganic nano leather repairing agent and a preparation method thereof, wherein the repairing agent comprises the following components in percentage by weight: 30.0-70.0% of nano silicon dioxide particle hybrid modified acrylic resin emulsion, 2.0-10.0% of polyethyleneimine water solution, 0-6.0% of cross-linking agent, 0-2.0% of emulsifier, 2.0-8.0% of solvent, 0.2-0.5% of preservative and 3.8-65.5% of water. Meanwhile, the invention also provides a preparation method of the repairing agent, which comprises the following steps: adding the nano silicon dioxide particle hybrid modified acrylic resin emulsion into water, stirring and dispersing, then adding the polyethyleneimine aqueous solution, the solvent and the emulsifier, stirring uniformly, and then adding the cross-linking agent and the preservative. The repairing agent disclosed by the invention is firmly combined with leather, good in elasticity after curing, tough, wear-resistant and water-resistant, and the finished leather has a good repairing and filling effect and is durable and stable in storage.
Description
Technical Field
The invention relates to a fur care agent and a preparation method thereof, in particular to a leather repairing agent and a preparation method thereof.
Background
At present, most of widely applied leather surface repairing and finishing treatment technologies use polyurethanes and acrylic resins, and the cured polyurethane and acrylic resins fill the damaged parts of the leather. Silica is added in the prior art to enhance the capability of covering the wound, but the various wound repairing techniques still have a plurality of defects in practical application, such as poor filling performance, poor binding degree with leather fibers, insufficient water resistance, ultraviolet resistance, poor antibacterial property, weak binding degree of the wound repairing part, low solid content and repeated use and repair.
Disclosure of Invention
The invention aims to provide a leather repairing agent with better comprehensive performance and a preparation method thereof.
In order to solve the technical problems, the technical scheme of the invention is as follows:
an inorganic nano leather repairing agent comprises the following components in percentage by weight:
the nano silicon dioxide particle hybrid modified acrylic resin emulsion is formed by polymerizing nano silicon dioxide through surface modification of a coupling agent and then by utilizing a seed emulsion polymerization technology;
the cross-linking agent is selected from isocyanate, diallyl phthalate or triallyl cyanurate;
the emulsifier is selected from sodium dodecyl sulfate, N-dodecyl dimethylamine or p-octyl phenol polyoxyethylene ether.
The solvent comprises isopropanol, ethanol or acetone.
The weight percentage of each component as one of the specific embodiments is as follows:
the two components of the concrete embodiment have the following weight percentage contents:
the third embodiment comprises the following components in percentage by weight:
the four components used as the concrete embodiment have the following weight percentage contents:
the five components used as the concrete embodiment have the following weight percentage contents:
meanwhile, the invention also provides a preparation method of the inorganic nano leather repairing agent, which comprises the following steps: adding the nano silicon dioxide particle hybrid modified acrylic resin emulsion into water, stirring and dispersing, then adding the polyethyleneimine aqueous solution, the solvent and the emulsifier, stirring uniformly, and then adding the cross-linking agent and the preservative.
The leather repairing agent and the preparation method thereof overcome the defects in the prior art, and provide the leather repairing agent which is firmly combined with leather, has good elasticity after curing, is tough and wear-resistant, is not brittle and hot or sticky, has strong water resistance, and is uvioresistant and antibacterial. The invention mainly adopts nano silicon dioxide particle hybridization modified acrylic resin emulsion as the filling and repairing component of leather breakage and pothole, compared with the polyacrylate emulsion and polychloroprene latex which are commonly used in the current leather repairing agent, the nano silicon dioxide particle hybridization modified acrylic resin emulsion has obviously improved tensile strength, tearing strength and elongation at break of adhesive film, obviously improved wet rubbing resistance, air permeability, water vapor permeability and folding resistance of coating, simultaneously, the addition of nano silicon dioxide particles increases the crosslinking degree of acrylic resin, the network formed by nano silicon dioxide can effectively inhibit the movement of acrylic resin straight chain macromolecule, thereby improving the defect of acrylic resin hot sticking, additionally, polyethyleneimine (50 percent aqueous solution) is added to be mixed with acrylic emulsion to play quick drying, strong adhesion and water resistance, and can disperse the nano silicon dioxide particles, so that the nano silicon dioxide particles can not agglomerate and have better dispersity. The silicon dioxide particles are uniformly distributed in the product, the coating does not have the phenomenon of graying, the adhesiveness is enhanced, the product is practically used, the filling effect is good, the bonding fastness with the leather fiber is good, and the water resistance, the ultraviolet resistance and the antibacterial performance are all superior to those of the existing product.
Compared with the prior art, the inorganic nano-filling leather repair agent disclosed by the invention is firmly combined with leather, has good elasticity after curing, is tough, wear-resistant and water-resistant, and has a cold, non-brittle and non-sticky repairing effect. The finished leather has good repairing and filling effects, stable storage, no deterioration, water resistance, ultraviolet resistance and aging resistance. The novel leather mending agent is suitable for mending and finishing the surfaces of various leathers.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
FIG. 1 is a schematic flow chart of a preparation method of the inorganic nano leather repairing agent of the invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
An inorganic nano leather repairing agent comprises the following components in percentage by weight:
the nano silicon dioxide particle hybrid modified acrylic resin emulsion is formed by polymerizing nano silicon dioxide through surface modification of a coupling agent and then by utilizing a seed emulsion polymerization technology;
the cross-linking agent is selected from isocyanate, diallyl phthalate or triallyl cyanurate;
the emulsifier is selected from sodium dodecyl sulfate, N-dodecyl dimethylamine or p-octyl phenol polyoxyethylene ether.
The solvent comprises isopropanol, ethanol or acetone.
The following table shows the percentage of each component in each example:
example 1
An inorganic nano-filling leather repairing agent comprises the following components in percentage by weight:
preparation: adding the nano-scale silicon dioxide particle hybrid modified acrylic resin emulsion into water, stirring and dispersing, adding a polyethyleneimine aqueous solution, p-octylphenol polyoxyethylene ether and acetone, uniformly stirring, adding triallyl cyanurate and a preservative DM-PLUS to obtain a white viscous liquid.
Example 2
An inorganic nano-filling leather repairing agent comprises the following components in percentage by weight:
preparation: adding the nano-scale silicon dioxide particle hybrid modified acrylic resin emulsion into water, stirring and dispersing, adding a 50% aqueous solution of polyethyleneimine, ethanol and N-dodecyl dimethylamine, stirring uniformly, and adding preservatives of diallyl phthalate and DM-PLUS to obtain a white paste.
Example 3
An inorganic nano-filling leather repairing agent comprises the following components in percentage by weight:
preparation: adding the nano-scale silicon dioxide particle hybrid modified acrylic resin emulsion into water, stirring and dispersing, adding a 50% aqueous solution of polyethyleneimine, isopropanol and sodium lauryl sulfate, stirring uniformly, and adding isocyanate and a preservative DM-PLUS to obtain white viscous liquid.
Example 4
An inorganic nano-filling leather repairing agent comprises the following components in percentage by weight:
preparation: adding the nano-scale silicon dioxide particle hybrid modified acrylic resin emulsion into water, stirring and dispersing, adding the polyethyleneimine aqueous solution, isopropanol and sodium lauryl sulfate, stirring uniformly, and adding isocyanate and preservative DM-PLUS to obtain a white paste.
Example 5
An inorganic nano-filling leather repairing agent comprises the following components in percentage by weight:
preparation: adding the nano-scale silicon dioxide particle hybrid modified acrylic resin emulsion into water, stirring and dispersing, adding a polyethyleneimine aqueous solution and ethanol, stirring uniformly, and adding a preservative DM-PLUS to obtain a white viscous liquid.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. An inorganic nano leather repairing agent is characterized in that the repairing agent comprises the following components in percentage by weight:
the nano silicon dioxide particle hybrid modified acrylic resin emulsion is formed by polymerizing nano silicon dioxide through surface modification of a coupling agent and then by utilizing a seed emulsion polymerization technology;
the cross-linking agent is selected from isocyanate, diallyl phthalate or triallyl cyanurate;
the emulsifier is selected from sodium dodecyl sulfate, N-dodecyl dimethylamine or p-octyl phenol polyoxyethylene ether;
the solvent comprises isopropanol, ethanol or acetone.
2. The inorganic nano leather repairing agent according to claim 1, characterized in that the components and the weight percentage content of the repairing agent are as follows:
3. the inorganic nano leather repairing agent according to claim 1, characterized in that the components and the weight percentage content of the repairing agent are as follows:
4. the inorganic nano leather repairing agent according to claim 1, characterized in that the components and the weight percentage content of the repairing agent are as follows:
5. the inorganic nano leather repairing agent according to claim 1, characterized in that the components and the weight percentage content of the repairing agent are as follows:
6. the inorganic nano leather repairing agent according to claim 1, characterized in that the components and the weight percentage content of the repairing agent are as follows:
7. a method for preparing the inorganic nano leather repairing agent according to claim 1, which is characterized by comprising the following steps: adding the nano silicon dioxide particle hybrid modified acrylic resin emulsion into water, stirring and dispersing, then adding the polyethyleneimine aqueous solution, the solvent and the emulsifier, stirring uniformly, and then adding the cross-linking agent and the preservative.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510388493.5A CN104962669B (en) | 2015-07-03 | 2015-07-03 | Inorganic nano leather repairing agent and preparation method thereof |
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| CN201510388493.5A CN104962669B (en) | 2015-07-03 | 2015-07-03 | Inorganic nano leather repairing agent and preparation method thereof |
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| Publication Number | Publication Date |
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| CN104962669A CN104962669A (en) | 2015-10-07 |
| CN104962669B true CN104962669B (en) | 2020-09-18 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108559808B (en) * | 2018-05-17 | 2020-09-18 | 江门市汇锦科技有限公司 | Leather surface smoothing agent and preparation method thereof |
| CN112063254A (en) * | 2020-09-04 | 2020-12-11 | 江苏伊贝实业股份有限公司 | Leather repairing agent and repairing process |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101851691A (en) * | 2009-03-30 | 2010-10-06 | 上海皇宇科技发展有限公司 | Leather repairing agent |
| CN102604163A (en) * | 2012-02-24 | 2012-07-25 | 四川大学 | Inorganic nano compound and preparation method and application thereof |
| CN102965456A (en) * | 2012-12-13 | 2013-03-13 | 吴江市利达上光制品有限公司 | Quick-drying leather restoration agent |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101851691A (en) * | 2009-03-30 | 2010-10-06 | 上海皇宇科技发展有限公司 | Leather repairing agent |
| CN102604163A (en) * | 2012-02-24 | 2012-07-25 | 四川大学 | Inorganic nano compound and preparation method and application thereof |
| CN102965456A (en) * | 2012-12-13 | 2013-03-13 | 吴江市利达上光制品有限公司 | Quick-drying leather restoration agent |
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