CN113215826A - Silica gel fiber and preparation method and application thereof - Google Patents
Silica gel fiber and preparation method and application thereof Download PDFInfo
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- CN113215826A CN113215826A CN202110383014.6A CN202110383014A CN113215826A CN 113215826 A CN113215826 A CN 113215826A CN 202110383014 A CN202110383014 A CN 202110383014A CN 113215826 A CN113215826 A CN 113215826A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/77—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof
- D06M11/79—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof with silicon dioxide, silicic acids or their salts
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/01—Stain or soil resistance
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/10—Repellency against liquids
- D06M2200/11—Oleophobic properties
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/10—Repellency against liquids
- D06M2200/12—Hydrophobic properties
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Abstract
The invention discloses a silica gel fiber and a preparation method and application thereof, wherein the preparation method comprises the steps of preparing coating silicone oil, coating the coating silicone oil on the front surface and the back surface of a glass fiber cloth, drying the glass fiber cloth through a drying tunnel to obtain a semi-finished product, and sequentially cutting, oil spraying, baking, secondary baking and edge sewing the semi-finished product to obtain the silica gel fiber; the preparation method does not damage the structure of the glass fiber cloth, and is favorable for ensuring the mechanical property of the silica gel fiber; after oil is sprayed, a layer of bright and waterproof barrier film is formed on the surface of the glass fiber, so that the probability of water and oil penetrating into the gaps of the silica gel fiber is reduced, and the performances of the silica gel fiber in the aspects of water and oil resistance, easiness in cleaning and the like are improved; through two-stage baking, further shaping of silicone oil, silk-screen printing ink and oil is strengthened; the silica gel fiber has excellent physical and mechanical properties such as good flexibility, tensile strength, tear strength, oil and water resistance, corrosion resistance, dirt resistance and the like, and can be widely applied to different industries.
Description
Technical Field
The invention relates to the technical field of silica gel fibers, and particularly relates to a silica gel fiber and a preparation method and application thereof.
Background
The silica gel fiber is a high-performance and multipurpose composite material which is compounded by using high-temperature-resistant and high-strength glass fiber cloth as a base material and silicon rubber through a special process and has the characteristics of excellent high and low temperature resistance, chemical corrosion resistance, aging resistance and the like.
The preparation method of the existing silica gel fiber comprises the steps of coating a setting agent on two sides of a fiber cloth, mixing solid silica gel, pressing the solid silica gel on the two sides of the fiber cloth, printing patterns after vulcanization, and then baking. In the preparation method, the solid silica gel is inserted into the glass fiber cloth in a rolling mode, as is well known, the glass fiber cloth has the advantages of good insulation property, high mechanical strength and the like, but is brittle and poor in wear resistance, and the mechanical property of a finished product is reduced because the glass fiber cloth is easily cracked or even broken when the solid silica gel is rolled into the glass fiber cloth.
It is seen that improvements and enhancements to the prior art are needed.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide a silica gel fiber, a preparation method and application thereof, and aims to solve the problem of poor mechanical property of the existing silica gel fiber.
In order to achieve the purpose, the invention adopts the following technical scheme:
a preparation method of silica gel fiber comprises the following steps:
A. preparing coating silicone oil, and putting the coating silicone oil into a trough;
B. coating the silicone oil coated in the step A on one surface of the glass fiber cloth through a coating machine, drying through a drying tunnel and then rolling;
C. coating the other side of the glass fiber cloth in the step B with the coating silicone oil in the step A through a coating machine, drying through a drying tunnel, and rolling to obtain a semi-finished product;
D. cutting the semi-finished product, and spraying oil;
E. baking the oil-sprayed semi-finished product;
F. carrying out secondary baking on the baked semi-finished product;
G. and (4) performing edge sewing on the semi-finished product subjected to secondary baking to obtain the silica gel fiber.
The preparation method of the silica gel fiber comprises the following steps of A, mixing the mixture A and the mixture B to prepare the coating silicone oil; the mixture A comprises the following components in percentage by mass: 55-75% of silicone oil, 20-40% of white carbon black, 0.1-2% of a structural control agent, 0-1% of a release agent and 0.05-0.5% of a platinum catalyst; the mixture B comprises the following components in percentage by mass: 55-75% of silicone oil, 20-40% of white carbon black, 0.1-2% of structural control agent, 0-1% of release agent, 0.6-1.2% of cross-linking agent and 0.01-0.12% of delay agent.
The preparation method of the silica gel fiber is characterized in that the silicone oil is methyl vinyl polydimethylsiloxane; the structural control agent is hydroxyl silicone oil; the release agent is stearic acid; the platinum catalyst is 1, 3-divinyl-1, 1,3, 3-tetramethyldisiloxane platinum complex; the cross-linking agent is hydrogen-containing silicone oil; the retarder is ethynylcyclohexanol.
The preparation method of the silica gel fiber comprises the following step of mixing the mixture A and the mixture B in a weight ratio of 1: 1-1.2.
The preparation method of the silica gel fiber comprises the step of preparing the mixture A, wherein the specific gravity of the mixture A is 1.05-1.16kg/m3(ii) a The specific gravity of the mixture B is 1.05-1.16kg/m3。
The preparation method of the silica gel fiber comprises the following steps of A, drying and drying, wherein the drying temperature in the drying tunnel in the step B and the drying temperature in the step C are respectively 90 +/-15 ℃, 120 +/-15 ℃, 180 +/-15 ℃ and 200 +/-15 ℃ in sequence; the coating speed is 4.5-5 m/min; the tension of the glass fiber cloth in the coating process is 1.0-2.0kgf/mm2。
The preparation method of the silica gel fiber comprises the following steps of: hand feeling oil, white electric oil and platinum water; the weight ratio of the components is 1 to (4-5) to (0.03-0.04).
The preparation method of the silica gel fiber comprises the following steps of: baking at 180 + -10 deg.C for 20 min; the secondary baking conditions in the step F are as follows: baking at 180 deg.C for 60 min.
The silica gel fiber is prepared by the preparation method of the silica gel fiber.
The application of the silica gel fiber is to apply the silica gel fiber prepared by the preparation method of the silica gel fiber to a silica gel fiber pad, a silica gel fiber bib, a silica gel fiber apron and a silica gel fiber bag.
Has the advantages that:
the invention provides a silica gel fiber and a preparation method and application thereof, wherein the preparation method comprises the steps of preparing coating silicone oil, coating the coating silicone oil on the front surface and the back surface of a glass fiber cloth, drying the glass fiber cloth through a drying tunnel to obtain a semi-finished product, and sequentially cutting, oil spraying, baking, secondary baking and edge sewing the semi-finished product to obtain the silica gel fiber; the preparation method does not damage the structure of the glass fiber cloth, and is favorable for ensuring the mechanical property of the silica gel fiber; after oil is sprayed, a layer of bright and waterproof barrier film is formed on the surface of the glass fiber, so that the probability of water and oil penetrating into the gaps of the silica gel fiber is reduced, and the performances of the silica gel fiber in the aspects of water and oil resistance, easiness in cleaning and the like are improved; through two-stage baking, further shaping of silicone oil, silk-screen printing ink and oil is strengthened; the silica gel fiber has excellent physical and mechanical properties such as good flexibility, tensile strength, tear strength, oil and water resistance, corrosion resistance, dirt resistance and the like, and can be widely applied to different industries.
Detailed Description
The invention provides a silica gel fiber and a preparation method and application thereof, and in order to make the purpose, technical scheme and effect of the invention clearer and clearer, the invention is further described in detail by taking examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the scope of the invention.
The invention provides a preparation method of silica gel fiber, which comprises the following steps:
(1) preparing coating silicone oil, and putting the coating silicone oil into a trough; specifically, in order to make the finished product more beautiful, a proper amount of color paste can be added when preparing and coating silicone oil.
(2) And (3) coating the silicone oil coated in the step (1) on one surface of the glass fiber cloth through a coating machine, drying through a drying tunnel, and then rolling.
(3) And (3) coating the other side of the glass fiber cloth in the step (2) with the silicone oil coated in the step (1) by using a coating machine, drying the silicone oil coated in the drying tunnel, and rolling the silicone oil coated in the drying tunnel to obtain a semi-finished product.
(4) The designed pattern can be printed on the surface of the semi-finished product through screen printing according to the requirements of customers.
(5) Baking the semi-finished product printed with the pattern for 20min at 180 +/-10 ℃.
(6) And cutting the semi-finished product by taking the design drawing as a standard, and spraying oil.
(7) Baking the oil-sprayed semi-finished product at 180 +/-10 ℃ for 20 min.
(8) And (4) baking the baked semi-finished product at 180 ℃ for 60min for secondary baking.
(9) And (4) performing edge sewing on the semi-finished product subjected to secondary baking to obtain the silica gel fiber. Through edge sewing, on one hand, the glass fiber exposed at the edge part is prevented from falling off to pollute food; on the other hand, the aesthetic property of the silica gel fiber product is improved.
For current calendering solid silica gel to glass fiber cloth on, this application coats the both sides of glass fiber cloth through coating silicon oil respectively, and coating silicon oil alternates in glass fiber cloth and covers the surface of glass fiber cloth after the twice high temperature reaction solidification of drying tunnel, can not destroy glass fiber cloth's structure, is favorable to guaranteeing the mechanical properties of silica gel fibre. After oil spraying, a layer of bright and waterproof barrier film is formed on the surface of the glass fiber, so that the probability of water and oil permeating into the gaps of the silica gel fiber is reduced, and the performances of the silica gel fiber in the aspects of water and oil resistance, easiness in cleaning and the like are improved. And (4) strengthening the further shaping of coating silicone oil, silk-screen printing ink and oil by two-stage baking.
Further, the coating silicone oil is prepared by mixing a mixture A and a mixture B; the mixture A comprises the following components in percentage by mass: 55-75% of silicone oil, 20-40% of white carbon black (silicon dioxide), 0.1-2% of a structural control agent, 0-1% of a release agent and 0.05-0.5% of a platinum catalyst; the mixture B comprises the following components in percentage by mass: 55-75% of silicone oil, 20-40% of white carbon black, 0.1-2% of structural control agent, 0-1% of release agent, 0.6-1.2% of cross-linking agent and 0.01-0.12% of delay agent. The phenomena of hardening, plasticity reduction, gradual loss of remill and processing technological performance of sizing materials generated by the physical and chemical adsorption of the surface active hydroxyl of the white carbon black on silicon rubber molecules are weakened by adding a structural control agent with active groups to react with the hydroxyl to passivate the hydroxyl. The cross-linking agent reacts with the poly-hydrocarbon resin to form bridge bonds between polymer molecular chains, and the polymer molecular chains are changed into insoluble substances with three-dimensional structures. The coating silicone oil is solvent-free silicone oil, VOC can not be generated in the preparation process and the drying process, harmful substances such as BPA (bisphenol A), phthalate, polyvinyl chloride and the like are not contained, the coating silicone oil is friendly to the working environment and the external environment, and the prepared silica gel fiber is in food contact grade.
Further, the silicone oil is methyl vinyl polydimethylsiloxane; the structural control agent is hydroxyl silicone oil; the release agent is stearic acid; the platinum catalyst is 1, 3-divinyl-1, 1,3, 3-tetramethyldisiloxane platinum complex; the cross-linking agent is hydrogen-containing silicone oil; the retarder is ethynylcyclohexanol. The mixture A and the mixture B realize crosslinking and curing through addition polymerization, and the attention is paid to hydrogen generated in the reaction process and the high-temperature baking working environment, so that the fire is prevented and the generation of fire sources is avoided.
Further, the weight ratio of the mixture A to the mixture B is 1 to (1-1.2). The content of the mixture A is too large, namely the content of the mixture B is insufficient, and the content of the platinum catalyst is too high, so that the platinum catalyst is wasted and the manufacturing cost is increased on the premise of meeting the reaction process; if the content of the mixture A is too small, that is, the content of the mixture B is too large, and the content of the platinum catalyst is insufficient, the reaction process is slowed down, and if the reaction speed is to be faster, the reaction temperature needs to be increased, the reaction time needs to be prolonged, and the production efficiency is reduced. The mixture A and the mixture B have the most proper weight ratio, so that the silica gel is completely cured and is tightly connected with the glass fiber cloth, and the silica gel has certain softness and toughness.
Further, the specific gravity of the mixture A is 1.05-1.16kg/m3(ii) a The specific gravity of the mixture B is 1.05-1.16kg/m3. The mixture A and the mixture B under the specific gravity are transparent paste, and the prepared coating silicone oil is used within half an hour, so that the phenomenon that the mixture A and the mixture B generate invisible fine silica gel blocks after the mixture A and the mixture B start to solidify is avoided, and the coating quality is influenced.
Further, the temperature of the drying tunnel in the coating machine is 90 +/-15 ℃, 120 +/-15 ℃, 180 +/-15 ℃ and 200 +/-15 ℃ in sequence; the coating speed is 4.5-5 m/min; coating processThe tension of the medium glass fiber cloth is 1.0-2.0kgf/mm2. And (4) baking at high temperature through four baking channels to quickly solidify and shape the coated silicone oil. The coating speed ensures that the time for passing through the drying tunnel is long enough, which is beneficial to shaping. The tension is the force of clamping the glass fiber cloth by the coating roller, the glass fiber cloth is not damaged, the tension range is favorable for coating, and the glass fiber cloth is not moved left and right or shaken on the coating roller due to the tension problem.
Further, the thickness of the glass fiber cloth after the first coating is 0.30-0.40 mm; the thickness of the glass fiber after the second coating is 0.40-0.50 mm. The coating thickness is defined.
Further, the oil in the oil injection comprises the following components: hand feeling oil, white electric oil and platinum water; the weight ratio of the components is 1 to (4-5) to (0.03-0.04). The hand feeling oil is used for the surface decoration protection of silica gel, has the advantages of strong adhesive force, corrosion resistance, smooth hand feeling, bright surface effect, improvement of the surface flatness of a product and the like, and is used for diluting the hand feeling ink as a solvent, and vulcanizing at a certain temperature and for a certain time by using platinum water as a catalyst.
Furthermore, the invention also provides a silica gel fiber prepared by the preparation method of the silica gel fiber. The silica gel fiber has excellent physical and mechanical properties such as good flexibility, tensile strength, tear strength, oil and water resistance, corrosion resistance, dirt resistance and the like, and can be widely applied to different industries.
Furthermore, the invention also provides application of the silica gel fiber, and the prepared silica gel fiber is applied to aspects such as a silica gel fiber mat, a silica gel fiber bib, a silica gel fiber apron, a silica gel fiber bag and the like.
Example 1
A preparation method of silica gel fiber comprises the following steps:
(1) preparing coating silicone oil, and putting the coating silicone oil into a trough.
(2) And (3) coating the silicone oil coated in the step (1) on one surface of the glass fiber cloth through a coating machine, drying through a drying tunnel, and then rolling.
(3) And (3) coating the other side of the glass fiber cloth in the step (2) with the silicone oil coated in the step (1) by using a coating machine, drying the silicone oil coated in the drying tunnel, and rolling the silicone oil coated in the drying tunnel to obtain a semi-finished product.
(4) The designed pattern can be printed on the surface of the semi-finished product through screen printing according to the requirements of customers.
(5) Baking the semi-finished product printed with the pattern for 20min at 180 +/-10 ℃.
(6) And cutting the semi-finished product by taking the design drawing as a standard, and spraying oil.
(7) Baking the oil-sprayed semi-finished product at 180 +/-10 ℃ for 20 min.
(8) And (4) baking the baked semi-finished product at 180 ℃ for 60min for secondary baking.
(9) And (4) performing edge sewing on the semi-finished product subjected to secondary baking to obtain the silica gel fiber.
The coating silicone oil is prepared by mixing a mixture A and a mixture B; the mixture A comprises the following components in percentage by mass: 75% of silicone oil, 20% of white carbon black, 0.5% of structural control agent, 1% of release agent and 0.5% of platinum catalyst; the mixture B comprises the following components in percentage by mass: 75% of silicone oil, 20% of white carbon black, 0.5% of structural control agent, 0.6% of cross-linking agent and 0.01% of delay agent. The weight ratio of the mixture A to the mixture B is 1: 1.2.
The temperature of the drying tunnel in the coating machine is 90 +/-15 ℃, 120 +/-15 ℃, 180 +/-15 ℃ and 200 +/-15 ℃ in sequence; the coating speed is 5 m/min; the tension of the glass fiber cloth in the coating process is 1.0-2.0kgf/mm2。
The thickness of the glass fiber cloth after the first coating is 0.33 mm; the thickness of the glass fiber after the second coating was 0.45 mm.
The weight ratio of the components is 1: 4: 0.04 of hand feeling oil, white gasoline and platinum water.
Example 2
The preparation method of example 2 is substantially the same as that of example 1 except that:
the mixture A comprises the following components in percentage by mass: 65% of silicone oil, 30% of white carbon black, 2% of a structural control agent, 1% of a release agent and 0.2% of a platinum catalyst; the mixture B comprises the following components in percentage by mass: 65% of silicone oil, 30% of white carbon black, 2% of a structural control agent, 1.2% of a cross-linking agent and 0.06% of a delay agent. The weight ratio of the mixture A to the mixture B is 1: 1-1.1.
The coating speed is 4.5 m/min; the thickness of the glass fiber cloth after the first coating is 0.31 mm; the thickness of the glass fiber after the second coating was 0.48 mm.
The weight ratio of the components is 1: 5: 0.04 of hand feeling oil, white gasoline and platinum water.
Example 3
The preparation of example 3 is essentially the same as example 1, except that:
the mixture A comprises the following components in percentage by mass: 55% of silicone oil, 40% of white carbon black, 1% of structural control agent, 1% of release agent and 0.05% of platinum catalyst; the mixture B comprises the following components in percentage by mass: 55% of silicone oil, 40% of white carbon black, 1% of a structural control agent, 1% of a release agent, 0.9% of a cross-linking agent and 0.12% of a delay agent. The weight ratio of the mixture A to the mixture B is 1: 1.
The coating speed is 4.8 m/min; the thickness of the glass fiber cloth after the first coating is 0.38 mm; the thickness of the glass fiber after the second coating was 0.45 mm.
The weight ratio of the components is 1: 4: 0.03 of hand feeling oil, white gasoline and platinum water.
The performance of the silica gel fibers prepared in the above examples 1 to 3 was tested by the following specific procedures: the silica gel fiber was placed in a heating furnace and heated at 250 ℃ for 1 hour, and then tested, and the results were as follows:
| tensile strength/MPa | Tear Strength/(KN/m) | Elongation at break/% | Layering | |
| Example 1 | 11.5 | 53.6 | 334 | Without delamination |
| Example 2 | 10.8 | 62.9 | 307 | Without delamination |
| Example 3 | 12.7 | 69.1 | 318 | Without delamination |
It should be understood that equivalents and modifications of the technical solution and inventive concept thereof may occur to those skilled in the art, and all such modifications and alterations should fall within the protective scope of the present invention.
Claims (10)
1. The preparation method of the silica gel fiber is characterized by comprising the following steps:
A. preparing coating silicone oil, and putting the coating silicone oil into a trough;
B. coating the silicone oil coated in the step A on one surface of the glass fiber cloth through a coating machine, drying through a drying tunnel and then rolling;
C. coating the other side of the glass fiber cloth in the step B with the coating silicone oil in the step A through a coating machine, drying through a drying tunnel, and rolling to obtain a semi-finished product;
D. cutting the semi-finished product, and spraying oil;
E. baking the oil-sprayed semi-finished product;
F. carrying out secondary baking on the baked semi-finished product;
G. and (4) performing edge sewing on the semi-finished product subjected to secondary baking to obtain the silica gel fiber.
2. The method for preparing silica gel fiber according to claim 1, wherein the coating silicone oil in step a is prepared by mixing a mixture a and a mixture B; the mixture A comprises the following components in percentage by mass: 55-75% of silicone oil, 20-40% of white carbon black, 0.1-2% of a structural control agent, 0-1% of a release agent and 0.05-0.5% of a platinum catalyst; the mixture B comprises the following components in percentage by mass: 55-75% of silicone oil, 20-40% of white carbon black, 0.1-2% of structural control agent, 0-1% of release agent, 0.6-1.2% of cross-linking agent and 0.01-0.12% of delay agent.
3. The method for preparing a silica gel fiber according to claim 2, wherein the silicone oil is methyl vinyl polydimethylsiloxane; the structural control agent is hydroxyl silicone oil; the release agent is stearic acid; the platinum catalyst is 1, 3-divinyl-1, 1,3, 3-tetramethyldisiloxane platinum complex; the cross-linking agent is hydrogen-containing silicone oil; the retarder is ethynylcyclohexanol.
4. The method of claim 2, wherein the weight ratio of mixture A to mixture B is 1: 1-1.2.
5. The method for producing a silica gel fiber according to claim 2, wherein the specific gravity of the mixture a is 1.05 to 1.16kg/m3(ii) a The specific gravity of the mixture B is 1.05-1.16kg/m3。
6. The method for preparing silica gel fiber according to claim 1, wherein the temperature of the drying tunnel in step B and step C is 90 ± 15 ℃, 120 ± 15 ℃, 180 ± 15 ℃ and 200 ± 15 ℃ in sequence; the coating speed is 4.5-5 m/min; the tension of the glass fiber cloth in the coating process is 1.0-2.0kgf/mm2。
7. The method of claim 1, wherein the oil in step D comprises the following components: hand feeling oil, white electric oil and platinum water; the weight ratio of the components is 1 to (4-5) to (0.03-0.04).
8. The method for preparing silica gel fiber according to claim 7, wherein the baking conditions in the step E are as follows: baking at 180 + -10 deg.C for 20 min; the secondary baking conditions in the step F are as follows: baking at 180 deg.C for 60 min.
9. A silica gel fiber produced by the method for producing a silica gel fiber according to any one of claims 1 to 8.
10. Use of a silica gel fiber prepared by the method for preparing a silica gel fiber according to any one of claims 1 to 8 in a silica gel fiber mat, a silica gel fiber bib, a silica gel fiber apron, or a silica gel fiber bag.
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| CN116478619A (en) * | 2022-01-15 | 2023-07-25 | 佛山市康矽胶业科技有限公司 | Method for forming silica gel layer on surface of metal piece and silica gel layer |
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| CN116478619A (en) * | 2022-01-15 | 2023-07-25 | 佛山市康矽胶业科技有限公司 | Method for forming silica gel layer on surface of metal piece and silica gel layer |
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