CN115961481B - Breathable silica gel leather for automobile cushion and preparation method thereof - Google Patents
Breathable silica gel leather for automobile cushion and preparation method thereof Download PDFInfo
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- CN115961481B CN115961481B CN202211618379.3A CN202211618379A CN115961481B CN 115961481 B CN115961481 B CN 115961481B CN 202211618379 A CN202211618379 A CN 202211618379A CN 115961481 B CN115961481 B CN 115961481B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
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Abstract
The invention belongs to the technical field of silica gel leather, and particularly discloses breathable silica gel leather for an automobile cushion and a preparation method thereof, wherein the breathable silica gel leather comprises base cloth and a breathable surface layer coated on the surface of the base cloth, and the breathable surface layer comprises, by mass, 60-80% of organic silica gel, 15-20% of silk fibroin aqueous solution, 5-10% of polyurethane emulsion, 1-5% of hardener and 1-5% of penetrating agent. The silk fibroin aqueous solution and the polyurethane emulsion are used simultaneously, so that the toughness and the wear resistance of the silica gel leather can be ensured while the silica gel leather is improved to have better air permeability in a mutual cooperation manner.
Description
Technical Field
The invention belongs to the technical field of silica gel leather, and particularly relates to breathable silica gel leather for an automobile cushion and a preparation method thereof.
Background
The silica gel leather belongs to a synthetic leather product, is generally prepared by taking a fabric as a substrate and coating an organosilicon polymer, has the advantages of no peculiar smell, hydrolysis resistance, weather resistance, environmental friendliness, easy cleaning, high and low temperature resistance, acid and alkali salt resistance, light resistance, heat aging resistance, yellowing resistance, bending resistance, sterilizability, strong color fastness and the like, and can be applied to the fields of outdoor furniture, yacht ships, flexible package decorations, automotive interiors, public facilities, sports products, medical appliances and the like.
When the silica gel leather is applied to automotive interiors, such as automotive cushions, the air permeability requirement is improved, the air permeability of the silica gel leather mainly depends on the air permeability of a coating on a base cloth, so that the development of a coating material with excellent air permeability is a key for preparing the air permeable silica gel leather, and therefore, the invention provides the air permeable silica gel leather for the automotive cushions and a preparation method thereof.
Disclosure of Invention
In order to solve the problems, the primary object of the present invention is to provide a breathable silica gel leather for an automobile cushion and a preparation method thereof.
The specific technical scheme of the invention comprises the following steps:
The invention provides breathable silica gel leather for an automobile cushion, which comprises base cloth, and further comprises a breathable surface layer coated on the surface of the base cloth, wherein the breathable surface layer comprises, by mass, 60-80% of organic silica gel, 15-20% of silk fibroin aqueous solution, 5-10% of polyurethane emulsion, 1-5% of hardener and 1-5% of penetrating agent.
As a further optimization scheme of the invention, the base fabric is polyester fiber or viscose fiber.
As a further optimization scheme of the invention, in the step (3), the organic silica gel comprises, by mass, 50-60% of polysiloxane, 20-30% of fumed silica, 0.01-0.3% of platinum catalyst and 0.5-1% of methyl hydrogen polysiloxane.
As a further optimization scheme of the invention, the silk fibroin aqueous solution is prepared by dissolving silk fibroin by using a solvent and then dialyzing, wherein the solvent is a mixed solution of calcium chloride, water and ethanol.
The invention also provides a preparation method of the breathable silica gel leather for the automobile cushion, which comprises the following steps of:
(1) Weighing the raw materials of organic silica gel, silk fibroin aqueous solution, polyurethane emulsion, hardening agent and penetrating agent according to the component ratio, and mixing and diluting the raw materials with the diluting agent according to the mass ratio of 1:1 to obtain a first mixture;
(2) Coating the first mixture obtained in the step (1) on release paper to form a breathable surface layer, covering one surface of the breathable surface layer, which is far away from the release paper, with base cloth, and sending the base cloth into an oven for heating and curing;
(3) And after the curing is finished, rolling and uncovering the release paper at the same time to prepare the breathable silica gel leather for the automobile cushion.
As a further optimization scheme of the invention, in the step (2), the thickness of the breathable surface layer is controlled to be 0.5-0.8mm.
In summary, the beneficial effects of the invention are as follows:
(1) The invention has simple composition, safe components, no toxicity and no harm.
(2) The silk fibroin aqueous solution prepared by dissolving silk fibroin in a solvent and dialyzing is used for preparing the breathable surface layer of the silica gel leather, so that the breathability of the silica gel leather can be effectively improved.
(3) The silk fibroin aqueous solution and the polyurethane emulsion are used simultaneously, can cooperate with each other, and ensure the toughness and the wear resistance of the silica gel leather while improving the better air permeability of the silica gel leather.
Detailed Description
The following detailed description of the application is provided to illustrate the application and should not be construed as limiting the scope of the application since it is intended that the following detailed description is given for the purpose of illustration only, and that certain non-essential modifications and adaptations of the application may occur to those skilled in the art in light of the foregoing disclosure.
Example 1
The embodiment provides a preparation method of breathable silica gel leather for an automobile cushion, which comprises the following steps:
(1) Weighing the raw materials of organic silica gel, silk fibroin aqueous solution, polyurethane emulsion, hardening agent and penetrating agent according to the component ratio, and mixing and diluting the raw materials with the diluting agent according to the mass ratio of 1:1 to obtain a first mixture;
Wherein, the weight percentage is that organic silica gel 60%, silk fibroin aqueous solution 20%, polyurethane emulsion 10%, hardener 5%, penetrating agent 5%, the diluent is white oil;
The organic silica gel comprises the following raw materials, by mass, 60% of polysiloxane, 39% of fumed silica, 0.3% of platinum catalyst and 0.7% of methyl hydrogen polysiloxane;
the silk fibroin aqueous solution is prepared by dissolving silk fibroin in a solvent and then dialyzing, wherein the solvent is a mixed solution of calcium chloride, water and ethanol, and the concentration of the silk fibroin aqueous solution is 100mg/ml;
(2) Coating the first mixture obtained in the step (1) on release paper to form a breathable surface layer, controlling the thickness of the breathable surface layer to be 0.5-0.8m, coating a polyester fiber base fabric on one surface of the breathable surface layer, which is far away from the release paper, and sending the polyester fiber base fabric into an oven for heating and curing;
(3) And after the curing is finished, rolling and uncovering the release paper at the same time to prepare the breathable silica gel leather for the automobile cushion.
Example 2
The embodiment provides a preparation method of breathable silica gel leather for an automobile cushion, which comprises the following steps:
(1) Weighing the raw materials of organic silica gel, silk fibroin aqueous solution, polyurethane emulsion, hardening agent and penetrating agent according to the component ratio, and mixing and diluting the raw materials with the diluting agent according to the mass ratio of 1:1 to obtain a first mixture;
Wherein, the weight percentage is 65 percent of organic silica gel, 15 percent of silk fibroin aqueous solution, 10 percent of polyurethane emulsion, 5 percent of hardener and 5 percent of penetrating agent, and the diluent is white electric oil;
The organic silica gel comprises the following raw materials, by mass, 60% of polysiloxane, 39% of fumed silica, 0.3% of platinum catalyst and 0.7% of methyl hydrogen polysiloxane;
the silk fibroin aqueous solution is prepared by dissolving silk fibroin in a solvent and then dialyzing, wherein the solvent is a mixed solution of calcium chloride, water and ethanol, and the concentration of the silk fibroin aqueous solution is 100mg/ml;
(2) Coating the first mixture obtained in the step (1) on release paper to form a breathable surface layer, controlling the thickness of the breathable surface layer to be 0.5-0.8m, coating a polyester fiber base fabric on one surface of the breathable surface layer, which is far away from the release paper, and sending the polyester fiber base fabric into an oven for heating and curing;
(3) And after the curing is finished, rolling and uncovering the release paper at the same time to prepare the breathable silica gel leather for the automobile cushion.
Example 3
The embodiment provides a preparation method of non-fluorescent food-grade silica gel, which specifically comprises the following steps:
(1) Weighing the raw materials of organic silica gel, silk fibroin aqueous solution, polyurethane emulsion, hardening agent and penetrating agent according to the component ratio, and mixing and diluting the raw materials with the diluting agent according to the mass ratio of 1:1 to obtain a first mixture;
Wherein, the weight percentage is that the organic silica gel is 70%, the silk fibroin aqueous solution is 15%, the polyurethane emulsion is 5%, the hardener is 5%, the penetrating agent is 5%, the diluent is white electric oil;
The organic silica gel comprises the following raw materials, by mass, 60% of polysiloxane, 39% of fumed silica, 0.3% of platinum catalyst and 0.7% of methyl hydrogen polysiloxane;
the silk fibroin aqueous solution is prepared by dissolving silk fibroin in a solvent and then dialyzing, wherein the solvent is a mixed solution of calcium chloride, water and ethanol, and the concentration of the silk fibroin aqueous solution is 100mg/ml;
(2) Coating the first mixture obtained in the step (1) on release paper to form a breathable surface layer, controlling the thickness of the breathable surface layer to be 0.5-0.8m, coating viscose fiber base cloth on one surface of the breathable surface layer, which is far away from the release paper, and sending the surface layer into an oven for heating and curing;
(3) And after the curing is finished, rolling and uncovering the release paper at the same time to prepare the breathable silica gel leather for the automobile cushion.
Comparative example 1
The comparative example provides a preparation method of breathable silica gel leather for an automobile cushion, which comprises the following steps:
(1) Weighing the raw materials of the organic silica gel, the polyurethane emulsion, the hardener and the penetrating agent according to the component ratio, and mixing and diluting the raw materials and the diluting agent according to the mass ratio of 1:1 to obtain a first mixture;
Wherein, the weight percentages of the organic silica gel, the polyurethane emulsion, the hardener and the penetrating agent are respectively 80 percent, 10 percent, 5 percent and 5 percent, respectively, and the diluent is white oil;
The organic silica gel comprises the following raw materials, by mass, 60% of polysiloxane, 39% of fumed silica, 0.3% of platinum catalyst and 0.7% of methyl hydrogen polysiloxane;
the silk fibroin aqueous solution is prepared by dissolving silk fibroin in a solvent and then dialyzing, wherein the solvent is a mixed solution of calcium chloride, water and ethanol, and the concentration of the silk fibroin aqueous solution is 100mg/ml;
(2) Coating the first mixture obtained in the step (1) on release paper to form a breathable surface layer, wherein the thickness of the breathable surface layer is controlled to be 0.5-0.8mm, covering one surface of the breathable surface layer, which is far away from the release paper, with polyester fiber base cloth, and sending the polyester fiber base cloth into an oven for heating and curing;
(3) And after the curing is finished, rolling and uncovering the release paper at the same time to prepare the breathable silica gel leather for the automobile cushion.
Comparative example 2
The comparative example provides a preparation method of breathable silica gel leather for an automobile cushion, which comprises the following steps:
(1) Weighing the raw materials of the organic silica gel, the silk fibroin aqueous solution, the hardener and the penetrating agent according to the component ratio, and mixing and diluting the raw materials with the diluting agent according to the mass ratio of 1:1 to obtain a first mixture;
wherein, the weight percentages of the organic silica gel, the silk fibroin aqueous solution, the hardener and the penetrating agent are respectively 70 percent, 20 percent, 5 percent and 5 percent, and the diluent is white electric oil;
The organic silica gel comprises the following raw materials, by mass, 60% of polysiloxane, 39% of fumed silica, 0.3% of platinum catalyst and 0.7% of methyl hydrogen polysiloxane;
The silk fibroin aqueous solution is prepared by dissolving silk fibroin in a solvent and then dialyzing, wherein the solvent is a mixed solution of calcium chloride, water and ethanol, and the silk fibroin aqueous solution;
(2) Coating the first mixture obtained in the step (1) on release paper to form a breathable surface layer, wherein the thickness of the breathable surface layer is controlled to be 0.5-0.8mm, covering one surface of the breathable surface layer, which is far away from the release paper, with polyester fiber base cloth, and sending the polyester fiber base cloth into an oven for heating and curing;
(3) And after the curing is finished, rolling and uncovering the release paper at the same time to prepare the breathable silica gel leather for the automobile cushion.
Comparative example 3
The comparative example provides a preparation method of breathable silica gel leather for an automobile cushion, which comprises the following steps:
(1) Weighing the raw materials of the organic silica gel, the hardener and the penetrating agent according to the component proportion, and mixing and diluting the raw materials with the diluting agent according to the mass proportion of 1:1 to obtain a first mixture;
Wherein, the weight percentage is 90 percent of organic silica gel, 5 percent of hardener and 5 percent of penetrating agent, and the diluent is white oil;
The organic silica gel comprises the following raw materials, by mass, 60% of polysiloxane, 39% of fumed silica, 0.3% of platinum catalyst and 0.7% of methyl hydrogen polysiloxane;
The silk fibroin aqueous solution is prepared by dissolving silk fibroin in a solvent and then dialyzing, wherein the solvent is a mixed solution of calcium chloride, water and ethanol, and the silk fibroin aqueous solution;
(2) Coating the first mixture obtained in the step (1) on release paper to form a breathable surface layer, wherein the thickness of the breathable surface layer is controlled to be 0.5-0.8mm, covering one surface of the breathable surface layer, which is far away from the release paper, with polyester fiber base cloth, and sending the polyester fiber base cloth into an oven for heating and curing;
(3) And after the curing is finished, rolling and uncovering the release paper at the same time to prepare the breathable silica gel leather for the automobile cushion.
Silica gel leather samples prepared according to the preparation methods of examples 1 to 3 and comparative examples 1 to 3 were subjected to air permeability test, mechanical test and abrasion test.
The air permeability test is that the test standard of the air permeability of leather is QB/T2799-2006 leather air permeability measuring method, the standard uses pressure difference to test air permeability to evaluate the air permeability of leather, and the test is carried out according to the principle of the standard;
Mechanical test, namely, testing the QB/T2711-2005 leather physical and mechanical test tearing force measurement, namely, double-sided tearing according to the principle of the standard;
Abrasion test reference standard GB/T2726-2005 determination of the wear resistance of leather physical and mechanical test, test according to the principle of the standard.
The test results are shown in Table 1.
Table 1 results statistics table
As shown by the results in Table 1, the air permeability of the silica gel leather prepared in the examples 1 to 3 is more outstanding, and the mechanical characteristics such as elongation at break, tensile strength and abrasion performance of the silica gel leather are also more excellent, while the comparative example 1 lacks the aqueous solution of silk fibroin in the air permeable surface layer component, the comparative example 2 lacks the polyurethane emulsion, and the comparative example 3 lacks both the aqueous solution of silk fibroin and the polyurethane emulsion, which results in the decrease of the air permeability of the silica gel leather, thereby indicating that the simultaneous use of the aqueous solution of silk fibroin and the polyurethane emulsion can cooperate with each other, so that the air permeability of the silica gel leather is improved;
In addition, as can be seen from comparative example 1, the use of the aqueous solution of silk fibroin increases the air permeability of the silica gel leather, and at the same time, the elongation at break and the tensile strength of the silica gel leather are reduced, while the toughness of the silica gel leather is reduced, and when only the polyurethane emulsion is used in comparative example 2, the elongation at break and the tensile strength of the silica gel leather are higher than those of comparative example 1, and the toughness of the silica gel leather is better than that of comparative example 1, so that the simultaneous use of the aqueous solution of silk fibroin and the polyurethane emulsion is illustrated, and the two can cooperate with each other, so that the toughness of the silica gel leather is improved.
The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that modifications can be made without departing from the spirit of the invention, which are within the scope of the invention.
Claims (5)
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211618379.3A CN115961481B (en) | 2022-12-15 | 2022-12-15 | Breathable silica gel leather for automobile cushion and preparation method thereof |
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| CN202211618379.3A CN115961481B (en) | 2022-12-15 | 2022-12-15 | Breathable silica gel leather for automobile cushion and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11217506A (en) * | 1998-02-04 | 1999-08-10 | Idemitsu Petrochem Co Ltd | Silk-containing solution, silk-containing resin composition, silk-containing molded product and preparation of silk-containing solution |
| CN107142745A (en) * | 2017-06-03 | 2017-09-08 | 东莞市良展有机硅科技有限公司 | High abrasion silica gel synthetic leather and preparation method thereof |
| CN110528294A (en) * | 2019-08-31 | 2019-12-03 | 深圳市力达创新科技有限公司 | A kind of silica gel leather and preparation method thereof |
| CN113605108A (en) * | 2021-08-17 | 2021-11-05 | 福建华夏合成革有限公司 | Breathable waterproof super-soft protein leather and preparation method thereof |
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2022
- 2022-12-15 CN CN202211618379.3A patent/CN115961481B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11217506A (en) * | 1998-02-04 | 1999-08-10 | Idemitsu Petrochem Co Ltd | Silk-containing solution, silk-containing resin composition, silk-containing molded product and preparation of silk-containing solution |
| CN107142745A (en) * | 2017-06-03 | 2017-09-08 | 东莞市良展有机硅科技有限公司 | High abrasion silica gel synthetic leather and preparation method thereof |
| CN110528294A (en) * | 2019-08-31 | 2019-12-03 | 深圳市力达创新科技有限公司 | A kind of silica gel leather and preparation method thereof |
| CN113605108A (en) * | 2021-08-17 | 2021-11-05 | 福建华夏合成革有限公司 | Breathable waterproof super-soft protein leather and preparation method thereof |
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