CN107190533B - Roughening and priming silica gel for elliptical machine and preparation method thereof - Google Patents
Roughening and priming silica gel for elliptical machine and preparation method thereof Download PDFInfo
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- CN107190533B CN107190533B CN201710528928.0A CN201710528928A CN107190533B CN 107190533 B CN107190533 B CN 107190533B CN 201710528928 A CN201710528928 A CN 201710528928A CN 107190533 B CN107190533 B CN 107190533B
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/52—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing synthetic macromolecular substances
- D06P1/5264—Macromolecular compounds obtained otherwise than by reactions involving only unsaturated carbon-to-carbon bonds
- D06P1/5292—Macromolecular compounds obtained otherwise than by reactions involving only unsaturated carbon-to-carbon bonds containing Si-atoms
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/46—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing natural macromolecular substances or derivatives thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/64—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing low-molecular-weight organic compounds without sulfate or sulfonate groups
- D06P1/642—Compounds containing nitrogen
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/64—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing low-molecular-weight organic compounds without sulfate or sulfonate groups
- D06P1/651—Compounds without nitrogen
- D06P1/65106—Oxygen-containing compounds
- D06P1/65118—Compounds containing hydroxyl groups
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/673—Inorganic compounds
- D06P1/67383—Inorganic compounds containing silicon
Abstract
The invention discloses a roughening and priming silica gel for an elliptical machine, which is composed of the following raw materials in parts by weight: 100 parts of vinyl polysiloxane, 10-15 parts of white carbon black, 0.15-0.2 part of inhibitor, 5-10 parts of polyvinyl silicone oil, 35-45 parts of cellulose, 2-3 parts of hexamethyldisilazane, 0.3-0.5 part of platinum catalyst, 10-11 parts of hydrogen-containing silicone oil and 30-40 parts of No. 120 solvent oil. The invention also discloses a preparation method of the roughening and priming silica gel for the elliptical machine, wherein a compound of base gel with 0.13% of vinyl content and hydrogen-containing silicone oil, propyl butynol and methyl butynol with 0.2% of vinyl content is adopted, so that the silica gel sizing material is dried at about 50 ℃ and about 5S, the operation time is more than 4H, and the preparation method is suitable for the operation requirement of the elliptical machine. The invention adopts the vinyl polysiloxane with proper viscosity, the white carbon black with proper proportion and the 120# solvent oil with proper proportion to finally prepare the bottoming silica gel with the viscosity of about 30 ten thousand, which is suitable for the operation of an elliptical machine.
Description
Technical Field
The invention relates to the field of screen silica gel printing, in particular to a roughening and priming silica gel for an elliptical machine and a preparation method of the roughening and priming silica gel for the elliptical machine.
Background
The printing silica gel is special liquid silica gel which can be firmly adhered to the surface of a textile after silk-screen printing.
Current stamp silica gel, generally only be applicable to the fingerprint environment, work efficiency is low, and labour cost is high, and product property can the stability hang down. With the development of mechanization and intellectualization, printing silica gel suitable for machine printing of elliptical machines is urgently needed in the printing industry. By adopting a machine printing method, products on the market at present have some technical problems. For example, when ordinary hand-stamp-printing primer silicone is used for machine-stamp-printing primer silicone, there are problems such as fast vulcanization and short operation time, or long operation time and slow vulcanization.
In order to overcome the defects, the invention adopts a special silica gel formula, and is an excellent product which meets the requirements of longer operation time and faster vulcanization rate at higher temperature and is used for the roughening and bottoming silica gel of the elliptical machine.
Disclosure of Invention
The invention aims to provide a roughening and priming silica gel for an elliptical machine.
The invention also aims to provide a preparation method of the roughening and priming silica gel for the elliptical machine.
The technical scheme adopted by the invention for realizing the purpose is as follows:
a roughening and priming silica gel for an elliptical machine is composed of the following raw materials in parts by weight: 100 parts of vinyl polysiloxane, 10-15 parts of white carbon black, 0.15-0.2 part of inhibitor, 5-10 parts of polyvinyl silicone oil, 35-45 parts of cellulose, 2-3 parts of hexamethyldisilazane, 0.3-0.5 part of platinum catalyst, 10-11 parts of hydrogen-containing silicone oil and 30-40 parts of No. 120 solvent oil.
The vinyl polysiloxane is a polydiorganosiloxane containing two or more vinyl groups.
The vinyl polysiloxane is vinyl-terminated polydimethylsiloxane, the viscosity is 50-60 ten thousand mPa.s, and the vinyl content is preferably 0.13%.
The inhibitor is two of methylbutinol, ethynyl cyclohexanol, phenyl butinol and propyl butinol.
The inhibitor is a compound of propyl butynol and methyl butynol.
The white carbon black is surface-treated fumed silica.
The platinum catalyst is H2PtCl6Isopropyl alcohol solution of (1), H2PtCl6Tetrahydrofuran solution of (2), Pt (PPh)3)4And methyl vinyl polysiloxane coordinated platinum complex or mixture of several kinds of them.
The concentration of the platinum catalyst is 5000 ppm.
The hydrogen content of the hydrogen-containing silicone oil is 0.2 percent.
A preparation method of the roughening and priming silica gel for the elliptical machine comprises the following steps:
the method comprises the following steps: preparing vinyl glue, namely adding vinyl polysiloxane, white carbon black, hexamethyldisilazane and cellulose into a kneader according to a ratio, kneading for 1H at 160 ℃, taking out, cooling, then adding the slurry, 120# solvent oil, platinum catalyst and polyvinyl silicone oil into a planetary stirrer according to a ratio, stirring for 0.5H until the slurry is uniformly dispersed, and vacuumizing to obtain the vinyl glue as a component A;
putting the inhibitor and hydrogen-containing silicone oil into a dispersion machine, and uniformly dispersing to obtain a component B;
step two: preparing base printing silica gel, uniformly mixing A, B components, and adding 10% of color paste to obtain the roughening base printing silica gel for the elliptical machine.
The invention has the beneficial effects that: the invention adopts the base rubber with 0.13 percent of vinyl content, the compound of hydrogen-containing silicone oil with 0.2 percent of vinyl content, propyl butynol and methyl butynol, so that the silica gel rubber material is dried at about 50 ℃ and about 5S, the operation time is more than 4H, and the invention is suitable for the operation requirement of the elliptical machine.
The invention adopts the vinyl polysiloxane with proper viscosity, the white carbon black with proper proportion and the 120# solvent oil with proper proportion to finally prepare the bottoming silica gel with the viscosity of about 30 ten thousand, which is suitable for the operation of an elliptical machine.
The polyvinyl silicone oil is adopted to increase the hardness of the sizing material, and the cellulose is thickened, so that the sizing material has a good roughening effect and is suitable for a hairy printing substrate.
The silk-screen press-hair primer obtained by the invention is suitable for an elliptical machine printing process. The method avoids various defects of a manual silk-screen printing base coat for an elliptical machine, has the characteristics of long operation time, high vulcanization speed, good mechanical printing and roughening effect and the like. The requirements of fast vulcanization, long operation time and good roughening of the roughening primer under the condition of machine printing are met. The sizing material is adjusted to have proper viscosity, so that the sizing material is suitable for machine operation, and the problems of laces, unevenness and the like can not occur.
Detailed Description
Embodiment 1, the roughening and priming silica gel for the elliptical machine provided in this embodiment is composed of the following raw materials in parts by mass: 100 parts of vinyl polysiloxane, 10-15 parts of white carbon black, 0.15-0.2 part of inhibitor, 5-10 parts of polyvinyl silicone oil, 35-45 parts of cellulose, 2-3 parts of hexamethyldisilazane, 0.3-0.5 part of platinum catalyst, 10-11 parts of hydrogen-containing silicone oil and 30-40 parts of No. 120 solvent oil.
The vinyl polysiloxane is a polydiorganosiloxane containing two or more vinyl groups.
The vinyl polysiloxane is vinyl-terminated polydimethylsiloxane, the viscosity is 50-60 ten thousand mPa.s, and the vinyl content is preferably 0.13%.
The inhibitor is two of methylbutinol, ethynyl cyclohexanol, phenyl butinol and propyl butinol.
The inhibitor is a compound of propyl butynol and methyl butynol.
The white carbon black is surface-treated fumed silica.
The platinum catalyst is H2PtCl6Isopropyl alcohol solution of (1), H2PtCl6Tetrahydrofuran solution of (2), Pt (PPh)3)4And methyl vinyl polysiloxane coordinated platinum complex or mixture of several kinds of them.
The concentration of the platinum catalyst is 5000 ppm.
The hydrogen content of the hydrogen-containing silicone oil is 0.2 percent.
A preparation method of the roughening and priming silica gel for the elliptical machine comprises the following steps:
the method comprises the following steps: preparing vinyl glue, namely adding vinyl polysiloxane, white carbon black, hexamethyldisilazane and cellulose into a kneader according to a ratio, kneading for 1H at 160 ℃, taking out, cooling, then adding the slurry, 120# solvent oil, platinum catalyst and polyvinyl silicone oil into a planetary stirrer according to a ratio, stirring for 0.5H until the slurry is uniformly dispersed, and vacuumizing to obtain the vinyl glue as a component A;
putting the inhibitor and hydrogen-containing silicone oil into a dispersion machine, and uniformly dispersing to obtain a component B;
step two: preparing base printing silica gel, uniformly mixing A, B components, and adding 10% of color paste to obtain the roughening base printing silica gel for the elliptical machine.
The invention adopts the base rubber with 0.13 percent of vinyl content, the compound of hydrogen-containing silicone oil with 0.2 percent of vinyl content, propyl butynol and methyl butynol, so that the silica gel rubber material is dried at about 50 ℃ and about 5S, the operation time is more than 4H, and the invention is suitable for the operation requirement of the elliptical machine.
The invention adopts the vinyl polysiloxane with proper viscosity, the white carbon black with proper proportion and the 120# solvent oil with proper proportion to finally prepare the bottoming silica gel with the viscosity of about 30 ten thousand, which is suitable for the operation of an elliptical machine.
The polyvinyl silicone oil is adopted to increase the hardness of the sizing material, and the cellulose is thickened, so that the sizing material has a good roughening effect and is suitable for a hairy printing substrate.
The silk-screen press-hair primer obtained by the invention is suitable for an elliptical machine printing process. The method avoids various defects of a manual silk-screen printing base coat for an elliptical machine, has the characteristics of long operation time, high vulcanization speed, good mechanical printing and roughening effect and the like. The requirements of fast vulcanization, long operation time and good roughening of the roughening primer under the condition of machine printing are met. The sizing material is adjusted to have proper viscosity, so that the sizing material is suitable for machine operation, and the problems of laces, unevenness and the like can not occur.
Embodiment 2, the base silica gel for roughening for an elliptical machine provided in this embodiment is composed of the following raw materials: 100g of vinylpolysiloxane (ViMe)2Si(Me2SiO)nSiMeVi), 15g of fumed silica, 35g of cellulose, 3g of hexamethylsilazane, 0.5g of platinum catalyst, 40g of No. 120 solvent oil, 10g of polyvinyl silicone oil, 11g of hydrogen-containing silicone oil, 0.1g of propylbutynol and 0.05g of methylbutynol.
100g of vinyl polysiloxane (ViMe) was added to the kneader2Si(Me2SiO)nSiMeVi), then adding 15g of fumed silica, 35g of cellulose, 3g of hexamethylsilazane, kneading for 1H at 160 ℃ until the mixture is kneaded uniformly, cooling, then putting the mixture into a planetary stirrer, adding 0.5g of platinum catalyst, 40g of 120# solvent oil and 10g of polyvinyl silicone oil, mixing for 30 minutes, and vacuumizing to obtain the component A. Then, 11g of hydrogen-containing silicone oil, 0.1g of propyl butynol, and 0.05g of methyl butynol were put into a dispersion machine and dispersed for 15 minutes to obtain a component B. When in use, the A, B components are mixed evenly,the method can be used for pressing the wool and the primer of the elliptical machine. Machine printing environment (50 ℃ printing table temperature), 4s surface drying. The printed pattern is well-pressed and has no bad problems.
Embodiment 3, the base silica gel for roughening for an elliptical machine provided in this embodiment is composed of the following raw materials: 100g of vinylpolysiloxane (ViMe)2Si(Me2SiO)nSiMeVi), 10g of fumed silica, 45g of cellulose, 3g of hexamethylsilazane, 0.3g of platinum catalyst, 40g of No. 120 solvent oil, 10g of polyvinyl silicone oil, 11g of hydrogen-containing silicone oil, 0.1g of propylbutynol and 0.1g of methylbutynol.
100g of vinyl polysiloxane (ViMe) was added to the kneader2Si(Me2SiO)nSiMeVi), then adding 10g of fumed silica, 45g of cellulose, 3g of hexamethylsilazane, kneading for 1H at 160 ℃ until the mixture is kneaded uniformly, cooling, then putting the mixture into a planetary stirrer, then adding 0.3g of platinum catalyst, 40g of 120# solvent oil and 10g of polyvinyl silicone oil, mixing for 30 minutes, and vacuumizing to obtain the component A. Then, 11g of hydrogen-containing silicone oil, 0.1g of propyl butynol, and 0.1g of methyl butynol were put into a dispersion machine and dispersed for 15 minutes to obtain a component B. When in use, the A, B components are mixed evenly, and the base glue can be used for pressing wool by an elliptical machine. Machine printing environment (50 ℃ printing table temperature), 5s surface drying. The printed pattern is well-pressed and has no bad problems.
Embodiment 4, the base silica gel for roughening for an elliptical machine provided in this embodiment is composed of the following raw materials: 100g of vinylpolysiloxane (ViMe)2Si(Me2SiO)nSiMeVi), 12g of fumed silica, 40g of cellulose, 2g of hexamethylsilazane, 0.4g of platinum catalyst, 30g of No. 120 solvent oil, 5g of polyvinyl silicone oil, 10g of hydrogen-containing silicone oil, 0.05g of propylbutynol and 0.15g of methylbutynol.
100g of vinyl polysiloxane (ViMe) was added to the kneader2Si(Me2SiO)nSiMeVi), then adding 12g of fumed silica, 40g of cellulose, 2g of hexamethylsilazane, kneading for 1H at 160 ℃, uniformly kneading, cooling, then putting the mixture into a planetary stirrer, then adding 0.4g of platinum catalyst, 30g of 120# solvent oil and 5g of polyvinyl silicone oil, mixing for 30 minutes, and vacuumizing to obtain the catalystTo component A. Then, 10g of hydrogen-containing silicone oil, 0.05g of propyl butynol and 0.15g of methyl butynol were put into a dispersion machine and dispersed for 15 minutes to obtain a component B. When in use, the A, B components are mixed evenly, and the base glue can be used for pressing wool by an elliptical machine. Machine printing environment (50 ℃ printing table temperature), 6s surface drying and 5.5H operation time. The printed pattern is well-pressed and has no bad problems.
The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner. Those skilled in the art can make many possible variations and modifications to the invention using the above disclosed technical means and teachings, or can modify equivalent embodiments with equivalent variations, without departing from the scope of the invention. Therefore, all equivalent changes made according to the shape, structure and principle of the present invention without departing from the technical scheme of the present invention shall be covered by the protection scope of the present invention.
Claims (5)
1. The roughening and priming silica gel for the elliptical machine is characterized by comprising the following raw materials in parts by weight: 100 parts of vinyl polysiloxane, 10-15 parts of white carbon black, 0.15-0.2 part of inhibitor, 5-10 parts of polyvinyl silicone oil, 35-45 parts of cellulose, 2-3 parts of hexamethyldisilazane, 0.3-0.5 part of platinum catalyst, 10-11 parts of hydrogen-containing silicone oil and 30-40 parts of No. 120 solvent oil;
the vinyl polysiloxane is vinyl-terminated polydimethylsiloxane, the viscosity is 50-60 ten thousand mPa.s, and the vinyl content is preferably 0.13%;
the inhibitor is a compound of propyl butynol and methyl butynol;
the hydrogen content of the hydrogen-containing silicone oil is 0.2 percent.
2. The corrugating and priming silica gel for elliptical machines as claimed in claim 1, wherein said silica is surface treated fumed silica.
3. The roughening and priming silica gel for elliptical machine as set forth in claim 1, wherein said platinum is goldThe catalyst is H2PtCl6Isopropyl alcohol solution of (1), H2PtCl6Tetrahydrofuran solution of (2), Pt (PPh)3)4And methyl vinyl polysiloxane coordinated platinum complex or mixture of several kinds of them.
4. The corrugating primer silica gel of claim 3, wherein said platinum catalyst is present in a concentration of 5000 ppm.
5. The preparation method of the roughening and priming silica gel for the elliptical machine, which is characterized by comprising the following steps:
the method comprises the following steps: preparing vinyl glue, namely adding vinyl polysiloxane, white carbon black, hexamethyldisilazane and cellulose into a kneader according to a ratio, kneading for 1H at 160 ℃, taking out, cooling, then adding the slurry, 120# solvent oil, platinum catalyst and polyvinyl silicone oil into a planetary stirrer according to a ratio, stirring for 0.5H until the slurry is uniformly dispersed, and vacuumizing to obtain the vinyl glue as a component A;
putting the inhibitor and hydrogen-containing silicone oil into a dispersion machine, and uniformly dispersing to obtain a component B;
step two: preparing base printing silica gel, uniformly mixing A, B components, and adding 10% of color paste to obtain the roughening base printing silica gel for the elliptical machine.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710528928.0A CN107190533B (en) | 2017-07-01 | 2017-07-01 | Roughening and priming silica gel for elliptical machine and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710528928.0A CN107190533B (en) | 2017-07-01 | 2017-07-01 | Roughening and priming silica gel for elliptical machine and preparation method thereof |
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| CN107190533A CN107190533A (en) | 2017-09-22 |
| CN107190533B true CN107190533B (en) | 2020-05-19 |
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| CN101514260A (en) * | 2009-03-13 | 2009-08-26 | 东莞市贝特利新材料有限公司 | Silastic composition and preparation method thereof |
| CN102220010A (en) * | 2011-05-27 | 2011-10-19 | 黄山市强路新材料有限公司 | Solvent-free addition liquid state silicon resin and preparation method of solvent-free addition liquid state silicon resin |
| CN105331114A (en) * | 2014-08-15 | 2016-02-17 | 无锡市万士达羽绒制品有限公司 | Organosilicon composition |
| CN105586782A (en) * | 2016-03-07 | 2016-05-18 | 惠州赛力珑新材料有限公司 | Printed organic silicone synthetic leather and preparation method thereof |
| CN105670299A (en) * | 2016-03-29 | 2016-06-15 | 东莞新东方科技有限公司 | Method for preparing formed liquid silicone rubber with low permanent compression deformation |
| CN106049067A (en) * | 2016-07-18 | 2016-10-26 | 东莞市良展有机硅科技有限公司 | Wool pressing and printing silica gel and preparation method thereof |
-
2017
- 2017-07-01 CN CN201710528928.0A patent/CN107190533B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101514260A (en) * | 2009-03-13 | 2009-08-26 | 东莞市贝特利新材料有限公司 | Silastic composition and preparation method thereof |
| CN102220010A (en) * | 2011-05-27 | 2011-10-19 | 黄山市强路新材料有限公司 | Solvent-free addition liquid state silicon resin and preparation method of solvent-free addition liquid state silicon resin |
| CN105331114A (en) * | 2014-08-15 | 2016-02-17 | 无锡市万士达羽绒制品有限公司 | Organosilicon composition |
| CN105586782A (en) * | 2016-03-07 | 2016-05-18 | 惠州赛力珑新材料有限公司 | Printed organic silicone synthetic leather and preparation method thereof |
| CN105670299A (en) * | 2016-03-29 | 2016-06-15 | 东莞新东方科技有限公司 | Method for preparing formed liquid silicone rubber with low permanent compression deformation |
| CN106049067A (en) * | 2016-07-18 | 2016-10-26 | 东莞市良展有机硅科技有限公司 | Wool pressing and printing silica gel and preparation method thereof |
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