CN113584898A - Silica gel leather for automobile seat and preparation method thereof - Google Patents

Silica gel leather for automobile seat and preparation method thereof Download PDF

Info

Publication number
CN113584898A
CN113584898A CN202110900574.4A CN202110900574A CN113584898A CN 113584898 A CN113584898 A CN 113584898A CN 202110900574 A CN202110900574 A CN 202110900574A CN 113584898 A CN113584898 A CN 113584898A
Authority
CN
China
Prior art keywords
parts
leather
silica gel
surface layer
gel leather
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
Application number
CN202110900574.4A
Other languages
Chinese (zh)
Inventor
董中科
卢扬续
庞有群
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Silicon Leather Technology Co ltd
Original Assignee
Guangdong Silicon Leather Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guangdong Silicon Leather Technology Co ltd filed Critical Guangdong Silicon Leather Technology Co ltd
Priority to CN202110900574.4A priority Critical patent/CN113584898A/en
Publication of CN113584898A publication Critical patent/CN113584898A/en
Pending legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D06N3/128—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with silicon polymers
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
    • D06N3/0059—Organic ingredients with special effects, e.g. oil- or water-repellent, antimicrobial, flame-resistant, magnetic, bactericidal, odour-influencing agents; perfumes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
    • D06N3/0063—Inorganic compounding ingredients, e.g. metals, carbon fibres, Na2CO3, metal layers; Post-treatment with inorganic compounds
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
    • D06N3/0095—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by inversion technique; by transfer processes
    • D06N3/0097—Release surface, e.g. separation sheets; Silicone papers
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
    • D06N3/146—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes characterised by the macromolecular diols used
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
    • D06N3/147—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes characterised by the isocyanates used
    • D06N3/148—(cyclo)aliphatic polyisocyanates
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/18—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with two layers of different macromolecular materials
    • D06N3/183—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with two layers of different macromolecular materials the layers are one next to the other
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2209/00—Properties of the materials
    • D06N2209/06—Properties of the materials having thermal properties
    • D06N2209/067—Flame resistant, fire resistant
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2209/00—Properties of the materials
    • D06N2209/10—Properties of the materials having mechanical properties
    • D06N2209/103—Resistant to mechanical forces, e.g. shock, impact, puncture, flexion, shear, compression, tear
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2209/00—Properties of the materials
    • D06N2209/16—Properties of the materials having other properties
    • D06N2209/1642—Hardnes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2209/00—Properties of the materials
    • D06N2209/16—Properties of the materials having other properties
    • D06N2209/1678—Resistive to light or to UV
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2209/00—Properties of the materials
    • D06N2209/16—Properties of the materials having other properties
    • D06N2209/1692—Weather resistance
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2211/00—Specially adapted uses
    • D06N2211/12—Decorative or sun protection articles
    • D06N2211/28—Artificial leather

Abstract

The invention provides a silica gel leather for an automobile seat and a preparation method thereof, wherein the silica gel leather for the automobile seat comprises a surface layer and a base cloth layer which are sequentially bonded, and is characterized in that the surface layer comprises the following components in parts by weight: 100-150 parts of vinyl silicone rubber base rubber, 10-20 parts of alkane diluent, 10-30 parts of dimethyl silicone oil, 8-16 parts of silicon modified polyether, 15-20 parts of filler, 5-8 parts of core-shell type acrylic modified polyurethane, 3-6 parts of plasticizer, 1-2 parts of silane oligomer and 1-2 parts of platinum catalyst, wherein the viscosity of the dimethyl silicone oil is 100-400mPa & s/25 ℃. The silica gel leather has excellent scratch resistance and tear resistance.

Description

Silica gel leather for automobile seat and preparation method thereof
Technical Field
The invention belongs to the field of silica gel leather materials, and particularly relates to silica gel leather for an automobile seat and a preparation method thereof.
Background
The traditional leather mainly comprises genuine leather and synthetic leather. Currently, the synthetic leather, PVC leather and oily PU leather, which are mainstream in the market, are products formed by coating resin slurry such as PU and PVC on a base material, and these methods all use chemical solvents in the process of producing synthetic leather, and cause great harm to the environment and human body through volatilization and residue.
With the development of national economy, the living standard and the consumption standard of people are continuously improved, and the requirements of people on the quality and the safety of products used in life are higher and higher. In the years, silica gel leather (substrate + silicone resin or silicone rubber) appears in the market, but the research on the scratch resistance and tear resistance of environment-friendly synthetic leather of the silica gel leather is less, and the market demand cannot be met.
Disclosure of Invention
The technical problem solved by the invention is as follows: the silicone rubber leather for the automobile seat and the preparation method thereof are provided for solving the technical problem that the leather in the prior art is poor in flame retardant property, scratch resistance and tear resistance.
The specific solution provided by the invention comprises the following steps:
the invention provides a silica gel leather, which comprises a surface layer and a base cloth layer which are sequentially bonded, and is characterized in that the surface layer comprises the following components in parts by weight: 100-150 parts of vinyl silicone rubber base rubber, 10-20 parts of alkane diluent, 10-30 parts of dimethyl silicone oil, 8-16 parts of silicon modified polyether, 15-20 parts of filler, 5-8 parts of core-shell type acrylic modified polyurethane, 3-6 parts of plasticizer, 1-2 parts of silane oligomer and 1-2 parts of platinum catalyst, wherein the viscosity of the dimethyl silicone oil is 100-400mPa & s/25 ℃.
The silica gel leather is mainly compounded by vinyl silicone rubber base rubber, alkane diluent, dimethyl silicone oil, silicon modified polyether and core-shell type acrylic modified polyurethane, wherein polyether structural units exist in a main chain structure of the silicon modified polyether, so that the product has high elasticity, ultraviolet resistance and excellent weather resistance after being cured, is cured quickly, has bonding and sealing performances, and enables a surface layer and base cloth to be tightly combined; because the vinyl silicone rubber base adhesive and the silicon modified polyether are physically mixed and have poor compatibility, the surface activity of the dimethyl silicone oil is utilized to ensure that the vinyl silicone rubber base adhesive and the silicon modified polyether are mixed more uniformly; and because the silicon modified polyether has high tensile modulus, the weather resistance, the scratch resistance and the tear resistance of the silica gel leather are improved, the leveling performance of the silica gel leather is improved by adopting the core-shell type acrylic modified polyurethane, the leveling performance of the surface layer sizing agent is improved, the softness of the silica gel leather is increased, and a smooth surface and a soft and smooth hand feeling are provided for the silica gel leather.
Specifically, the core-shell type acrylic modified polyurethane is obtained by performing core-shell emulsion polymerization, modifying polyurethane by using acrylic ester, and performing free radical crosslinking of acrylic monomers in a shell structure of the obtained novel composite polyurethane aqueous dispersion by a core-shell polymerization method.
The core-shell type acrylic modified polyurethane has better flame retardant property, and the core-shell type acrylic modified polyurethane has good affinity, so that the binding force between the material surface layer material and the base cloth can be further improved, and the scratch resistance and the tear resistance of the material can be improved.
On the basis of the technical scheme, the invention can be further improved as follows:
further, the surface layer comprises the following components in parts by weight: the surface layer comprises the following components in parts by weight: 100-150 parts of vinyl silicone rubber base rubber, 10-20 parts of alkane diluent, 10-30 parts of dimethyl silicone oil, 8-16 parts of silicon modified polyether, 15-20 parts of filler, 5-8 parts of core-shell type acrylic modified polyurethane, 3-6 parts of plasticizer, 1-2 parts of silane oligomer, 1-2 parts of platinum catalyst and 1-2 parts of additive, wherein the additive is water-based acetic acid-butyl cellulose or ethylene-vinyl acetate copolymer.
The plasticizer is didecyl phthalate, benzoate, pentadecyl phenyl sulfonate or polyether polyol.
The invention selects the compound organic silica gel rubber as a dry-process surface layer, the core-shell type acrylic modified polyurethane and the silicon dioxide in the surface layer have flame retardant properties, and the flame retardant properties of the surface layer are improved through the synergistic effect of the core-shell type acrylic modified polyurethane and the silicon dioxide;
the water-based acetic acid-butyl cellulose or ethylene-vinyl acetate copolymer is used as an additive, and has good orientation and dispersion effects on the silicon dioxide and the core-shell type acrylic modified polyurethane, so that the silicon dioxide and the core-shell type acrylic modified polyurethane are distributed in the surface layer more uniformly, and the flame retardant property of the surface layer is better;
the waterborne butyl cellulose acetate, the ethylene-vinyl acetate copolymer and the core-shell type acrylic resin all have excellent adhesive force, the scratch resistance and the tear resistance of the surface layer are improved, and the waterborne butyl cellulose acetate, the ethylene-vinyl acetate copolymer and the waterborne core-shell type acrylic modified polyurethane have good affinity, so that the scratch resistance and the tear resistance of the surface layer can be further improved.
The water-based acetic acid-butyl cellulose is used as an additive, the affinity between the water-based acetic acid-butyl cellulose and the core-shell type acrylic modified polyurethane is better, and the scratch resistance and the tearing resistance of the obtained surface layer material are better.
Preferably, the filler is nanosilica.
According to the application, the nano silicon dioxide is used as a reinforcing filler of the surface layer, the nano silicon dioxide is uniformly dispersed under the action of the silane oligomer, the surface activity of the nano silicon dioxide is high, the nano silicon dioxide and a molecular chain in the organic silica gel are increased, and multiple cross-linking sites are formed, so that the mechanical property of the silica gel is improved.
Preferably, the fabric further comprises an intermediate layer arranged between the surface layer and the base fabric, and the raw material of the intermediate layer is aqueous polyurethane resin slurry.
The aqueous polyurethane resin slurry is prepared from the main raw material of polyurethane, and the polyurethane has good adhesive capacity and can further improve the binding force between the surface layer and the base cloth, so that the overall scratch resistance and tear resistance of the leather material are further improved.
As an embodiment, the raw materials of the aqueous polyurethane resin slurry comprise the following components in parts by weight: 20-40 parts of polyester polyol, 15-25 parts of polyether polyol, 25-45 parts of isocyanate, 2-7 parts of hydrophilic monomer, 5-10 parts of chain extender and 2-5 parts of neutralizer.
The polyester polyol is one or more of poly adipic acid-1, 4-butanediol ester diol, poly adipic acid-1, 6-hexanediol ester diol and poly epsilon-caprolactone diol.
The isocyanate is at least one of isophorone diisocyanate, toluene diisocyanate, hexamethylene diisocyanate, diphenylmethane diisocyanate, dicyclohexylmethane diisocyanate and dicyclohexylmethane diisocyanate;
the chain extender is at least one of ethylenediamine, diethylenetriamine, ethylene glycol, butanediol and hexanediol;
the hydrophilic monomer is at least one of dimethylolpropionic acid and dimethylolbutyric acid;
the neutralizing agent is at least one of triethylamine, sodium hydroxide and ammonia water.
The invention also provides a preparation method of the silica gel leather for the automobile seat, which comprises the following steps.
Uniformly mixing vinyl silicone rubber base rubber, alkane diluent, dimethyl silicone oil, silicon modified polyether, plasticizer, silane oligomer and platinum catalyst, then adding nano silicon dioxide and additive to mix to form surface layer slurry, attaching the surface layer slurry to base cloth, vulcanizing at the temperature of 100-120 ℃, and stripping release paper to obtain the silica gel leather for the automobile seat.
Preferably, the specific method for attaching the surface layer slurry to the base cloth is as follows:
coating the aqueous polyurethane resin slurry on the base cloth, drying to obtain a middle layer, and coating the surface layer slurry on the middle layer.
The technical scheme based on the invention has the following beneficial technical effects:
the organic silica gel leather adopts the material of the compound silicone rubber as the surface layer of the organic silica gel leather, and has no solvent in the manufacturing process, thereby not only playing the environmental protection and low VOC emission of the solvent-free leather; the surface layer of the silica gel leather has the characteristics of smoothness, high and low temperature resistance, weather resistance and ultraviolet resistance, and the compounded silicone rubber material has excellent mechanical properties, so that the organic silica gel leather has excellent scratch resistance and tear resistance, and the compounded silicone rubber is used as the surface layer and is tightly combined with the middle layer and the base cloth, thereby being beneficial to further improving the tear resistance of the organic silica gel leather; the filler and the additive in the compound silicone rubber can effectively improve the flame retardant property of the organic silicone rubber leather; the compound silicone rubber and the organic silicone rubber leather have no solvent in the manufacturing process, have the advantages of environmental protection and low VOC (volatile organic compound) emission of the solvent-free leather, and are more environment-friendly and higher in cost performance in the manufacturing process of the silicone rubber.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Detailed Description
The following detailed description of embodiments of the invention is intended to be illustrative of the invention and is not to be construed as limiting the invention.
The preparation method of the silica gel leather comprises the following steps:
uniformly mixing vinyl silicone rubber-based glue, alkane diluent, dimethyl silicone oil, silicon modified polyether, filler, plasticizer, silane oligomer and platinum catalyst, and then adding nano silicon dioxide, core-shell type acrylic modified polyurethane and additive to mix to form surface layer slurry;
coating the aqueous polyurethane resin slurry on base cloth, baking for 15-20min at the temperature of 120-140 ℃ until drying to obtain an intermediate layer, coating the surface layer slurry on the intermediate layer, vulcanizing at the temperature of 100-120 ℃, and stripping release paper to obtain the silica gel leather for the automobile seat.
In this embodiment, the preparation process of the aqueous polyurethane resin slurry in step 2 is as follows: adding 25 parts of poly (1, 4-butylene adipate) glycol, 25 parts of polyoxypropylene polyol, 5 parts of dimethylolbutyric acid, 35 parts of isophorone diisocyanate and 0.05 part of stannous octoate into an open flask, reacting for 3 hours at 85 ℃, sampling to measure the content of NCO groups, diluting and cooling to 75 ℃ when the content reaches 7%, adding 5 parts of butanediol for chain extension reaction, keeping the temperature for reaction for 2 hours, sampling to measure the content of NCO groups, diluting and cooling to 35 ℃ when the content reaches 3%, adding 3 parts of triethylamine, and neutralizing for 30 minutes. And after the reaction is finished, adding deionized water under high-speed stirring, adding 1 part of ethylenediamine after dispersion is stable, and performing vacuum desolventizing after chain extension reaction is completed to obtain the aqueous polyurethane resin slurry.
Referring to the above preparation methods, it is proposed that the components of the top layer of the silicone rubber leather for automobile seats prepared in examples 1 to 4 of the present application are shown in table 1 in parts by weight.
TABLE 1
Example 1 Example 2 Example 3 Example 4
Vinyl silicone rubber-based adhesive 100 120 130 150
Alkane diluent 10 15 18 20
Dimethyl silicone oil 10 30 20 15
Silicon-modified polyethers 8 10 14 16
Filler material 18 15 20 16
Core-shell acrylic modified polyurethane 8 6 5 7
Plasticizer 5 3 4 6
Silane oligomers 1 2 2 1
Platinum catalyst 1 2 1 2
Comparative example 1
The composition and preparation of the silica gel leather were the same as in example 3, except that the top layer material did not include aqueous cellulose acetate-butyl cellulose.
Comparative example 2
The composition and preparation process of the silica gel leather are the same as those of example 3, except that the surface layer material does not contain core-shell type acrylic modified polyurethane.
Comparative example 3
The composition and preparation process of the silica gel leather are the same as those of example 3, except that the surface layer material does not contain aqueous acetate-butyl cellulose and core-shell type acrylic modified polyurethane.
Comparative example 4
The composition and preparation process of the silica gel leather are the same as those of example 3, except that the silica gel leather in the comparative example 4 is prepared by coating the surface layer slurry on the release paper, directly attaching the release paper to the base cloth, vulcanizing at the temperature of 100-120 ℃, and stripping the release paper to obtain the silica gel leather for the automobile seat.
Wherein, the organic silica gel used in the examples 1 to 4 and the comparative examples 1 to 4 is addition type silica gel produced by Xiamen Chuangli silica gel Co., Ltd; the plasticizer is an addition type silica gel plasticizer produced by Xiamen Xinghuli silica gel Co.
Performance testing
The silica gel leathers prepared in examples 1 to 4 and comparative examples 1 to 4 were respectively subjected to a wear resistance test, a scratch resistance test, a tear strength test and a flame retardancy test,
abrasion resistance test A Wishibo abrasion resistance tester was used to rub the silica gel leather 40 ten thousand times to observe whether the surface of the silica gel leather prepared in examples 1 to 4 and comparative examples 1 to 4 was damaged;
the scraping resistance test adopts a Ford five-finger scraping tester to rub the surface of the silica gel leather repeatedly at 10N pressure for one time, and whether the surfaces of the silica gel leathers prepared in examples 1-4 and comparative examples 1-3 are damaged or not is observed;
the tear strength test is carried out according to the standard of QB/T2711-2005 and by using an INSTRON tensile tester.
Flame retardancy test the UL-94 vertical flame test was performed on a model CZF-3 horizontal vertical flame tester using the ASTM D635-77 standard after cutting into flame retardancy test bars measuring 130mm by 13mm by 3 mm.
The results of measuring the properties of the silicone leathers prepared in examples 1 to 4 and comparative examples 1 to 4 are shown in Table 2.
TABLE 2 results of measuring the properties of the silicone leathers obtained in examples 1 to 4 and comparative examples 1 to 4
Figure BDA0003199624310000081
As can be seen from Table 2, the flame retardant properties of the silica gel leather prepared in examples 1-4 are far higher than those of comparative examples 1-4, and the core-shell acrylic modified polyurethane and the aqueous acetic acid-butyl cellulose both play a role in improving the flame retardant properties of leather materials, and especially the aqueous acetic acid-butyl cellulose is very important in improving the flame retardant properties of leather.
Although embodiments of the present invention have been described in detail above, those of ordinary skill in the art will understand that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (8)

1. The utility model provides a silica gel leather for car seat which characterized in that, is including surface course and the base cloth layer that bonds in proper order, its characterized in that, the surface course includes each component of following parts by weight: 100-150 parts of vinyl silicone rubber base rubber, 10-20 parts of alkane diluent, 10-30 parts of dimethyl silicone oil, 8-16 parts of silicon modified polyether, 15-20 parts of filler, 5-8 parts of core-shell type acrylic modified polyurethane, 3-6 parts of plasticizer, 1-2 parts of silane oligomer and 1-2 parts of platinum catalyst, wherein the viscosity of the dimethyl silicone oil is 100-400mPa & s/25 ℃.
2. The silicone leather for automobile seats as claimed in claim 1, wherein the surface layer comprises the following components in parts by weight: 100-150 parts of vinyl silicone rubber base rubber, 10-20 parts of alkane diluent, 10-30 parts of dimethyl silicone oil, 8-16 parts of silicon modified polyether, 15-20 parts of filler, 5-8 parts of core-shell type acrylic modified polyurethane, 3-6 parts of plasticizer, 1-2 parts of silane oligomer, 1-2 parts of platinum catalyst and 1-2 parts of additive, wherein the additive is water-based acetic acid-butyl cellulose or ethylene-vinyl acetate copolymer.
3. The silicone leather for automobile seats according to claim 1 or 2, characterized in that the filler is nano silica.
4. The silicone leather for automobile seats according to claim 1 or 2, wherein the plasticizer is benzoate, pentadecyl phenyl sulfonate, or polyether polyol.
5. The silicone leather for automobile seats according to claim 1 or 2, further comprising an intermediate layer disposed between the top layer and the base fabric, wherein the intermediate layer is made of an aqueous polyurethane resin slurry.
6. The silicone leather for automobile seats as claimed in claim 5, wherein the aqueous polyurethane resin slurry comprises the following components in parts by weight: 20-40 parts of polyester polyol, 15-25 parts of polyether polyol, 25-45 parts of isocyanate, 2-7 parts of hydrophilic monomer, 5-10 parts of chain extender and 2-5 parts of neutralizer.
7. The preparation method of the silica gel leather for the automobile seat as claimed in claim 2, characterized by comprising the steps of:
uniformly mixing vinyl silicone rubber base rubber, alkane diluent, dimethyl silicone oil, silicon modified polyether, plasticizer, silane oligomer and platinum catalyst, then adding nano silicon dioxide and additive to mix to form surface layer slurry, attaching the surface layer slurry to base cloth, vulcanizing at the temperature of 100-120 ℃, and stripping release paper to obtain the silica gel leather for the automobile seat.
8. The preparation method of the silica gel leather for the automobile seat according to claim 7, wherein the specific method for attaching the surface layer slurry to the base cloth is as follows:
coating the aqueous polyurethane resin slurry on the base cloth, drying to obtain a middle layer, and coating the surface layer slurry on the middle layer.
CN202110900574.4A 2021-08-06 2021-08-06 Silica gel leather for automobile seat and preparation method thereof Pending CN113584898A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110900574.4A CN113584898A (en) 2021-08-06 2021-08-06 Silica gel leather for automobile seat and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110900574.4A CN113584898A (en) 2021-08-06 2021-08-06 Silica gel leather for automobile seat and preparation method thereof

Publications (1)

Publication Number Publication Date
CN113584898A true CN113584898A (en) 2021-11-02

Family

ID=78255728

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110900574.4A Pending CN113584898A (en) 2021-08-06 2021-08-06 Silica gel leather for automobile seat and preparation method thereof

Country Status (1)

Country Link
CN (1) CN113584898A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102512304B1 (en) * 2022-10-24 2023-03-22 (주)명신기연 Synthesis method of acrylate-modified urethane and uv-curable solvent-free artificial nail gel composition using the same
CN116871149A (en) * 2023-08-01 2023-10-13 深圳市亚微新材料有限公司 Hydrophilic silica gel leather, manufacturing method and application of silazane in silica gel leather

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108219670A (en) * 2018-01-10 2018-06-29 广东天跃新材料股份有限公司 The white silicon rubber leather and its coating process of a kind of non yellowing
CN108252102A (en) * 2018-01-10 2018-07-06 广东天跃新材料股份有限公司 The silicon rubber leather and its coating process of a kind of UV resistant and hydrolysis
CN109337497A (en) * 2018-10-11 2019-02-15 宁波瑞凌节能环保创新与产业研究院 A kind of environmentally friendly cooling refrigeration coating
CN109680509A (en) * 2019-03-05 2019-04-26 厦门鑫创利硅胶有限公司 It is a kind of applied to vehicles interior trim or the silica gel leather of seat and preparation method thereof
CN110317521A (en) * 2019-07-05 2019-10-11 宁波瑞凌新能源科技有限公司 Selective radiation refrigeration coating and its composite material and methods for using them
CN110802893A (en) * 2019-11-12 2020-02-18 鑫双利(惠州)新材料科技有限公司 Easy-to-clean flame-retardant leather, preparation method and application
CN112694590A (en) * 2020-12-23 2021-04-23 宁波瑞凌新能源科技有限公司 Waterborne polyurethane, waterborne ink, printed matter, and preparation method and application thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108219670A (en) * 2018-01-10 2018-06-29 广东天跃新材料股份有限公司 The white silicon rubber leather and its coating process of a kind of non yellowing
CN108252102A (en) * 2018-01-10 2018-07-06 广东天跃新材料股份有限公司 The silicon rubber leather and its coating process of a kind of UV resistant and hydrolysis
CN109337497A (en) * 2018-10-11 2019-02-15 宁波瑞凌节能环保创新与产业研究院 A kind of environmentally friendly cooling refrigeration coating
CN109680509A (en) * 2019-03-05 2019-04-26 厦门鑫创利硅胶有限公司 It is a kind of applied to vehicles interior trim or the silica gel leather of seat and preparation method thereof
CN110317521A (en) * 2019-07-05 2019-10-11 宁波瑞凌新能源科技有限公司 Selective radiation refrigeration coating and its composite material and methods for using them
CN110802893A (en) * 2019-11-12 2020-02-18 鑫双利(惠州)新材料科技有限公司 Easy-to-clean flame-retardant leather, preparation method and application
CN112694590A (en) * 2020-12-23 2021-04-23 宁波瑞凌新能源科技有限公司 Waterborne polyurethane, waterborne ink, printed matter, and preparation method and application thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102512304B1 (en) * 2022-10-24 2023-03-22 (주)명신기연 Synthesis method of acrylate-modified urethane and uv-curable solvent-free artificial nail gel composition using the same
CN116871149A (en) * 2023-08-01 2023-10-13 深圳市亚微新材料有限公司 Hydrophilic silica gel leather, manufacturing method and application of silazane in silica gel leather

Similar Documents

Publication Publication Date Title
CN109796631B (en) Modified inorganic nano particle, composite aqueous polyurethane resin and application thereof
CN106674996A (en) Self-repaired graphene oxide/polyurethane composite material and preparation method thereof
CN110229301B (en) Preparation method and application of waterborne polyurethane resin synthetic leather
CN103087286B (en) Waterborne polyurethane elastic dispersion and preparation method thereof
CN112694591A (en) Preparation method of silane coupling agent modified solvent-free waterborne polyurethane
CN113584898A (en) Silica gel leather for automobile seat and preparation method thereof
KR102441743B1 (en) Method for producing carboxyl group-containing aqueous resin composition, molded article, and polycarbodiimide compound
CN110835401B (en) Waterborne polyurethane surface layer resin and preparation method thereof
CN110105912B (en) Waterborne polyurethane adhesive for automotive interior and preparation method thereof
KR101766013B1 (en) High elasticity aqueous adhesive composition and method for surface treatment of molded article using the same
CN106380829A (en) Waterborne polyurethane gloves slurry, preparation method thereof, and waterborne polyurethane gloves prepared from the same
CN109898342B (en) Preparation method of scratch-resistant synthetic leather based on high-resilience waterborne polyurethane
CN107722236B (en) Preparation method and application of organic silicon modified self-extinction waterborne polyurethane for synthetic leather
CN110951039A (en) Environment-friendly self-extinction waterborne polyurethane and preparation method and application thereof
US20210363285A1 (en) Non-ionic water based polyurethane and preparation method and use thereof
DE112007001943T5 (en) Process for the production of polyurethane elastomer foams
KR101369334B1 (en) Wet type polyurethane resin composition and the manufacturing method
CN111621259B (en) Waterborne polyurethane adhesive for breathable plastic track and preparation method thereof
CN104341566A (en) Preparation method of waterborne polyurethane resin
KR101313713B1 (en) compositions of polyurethane resin has anti-hydrolysis property, Manufacturing method of polyurethane resin using the same and polyurethane adhesive with polyurethane resin
CN111732708B (en) Soft high-resilience aqueous polyurethane resin and preparation method and application thereof
CN112574383B (en) Waterborne polyurethane emulsion and preparation method and application thereof
KR101027663B1 (en) High durable polyurethane coating resin composition
AU2020103155A4 (en) Non-ionic water based polyurethane and preparation method and use thereof
KR101737762B1 (en) Water-dispersive polyurethane resin for an air-bag and manufacturing process thereof

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20211102

RJ01 Rejection of invention patent application after publication