CN116876216B - Electronic grade glass cloth surface treating agent and preparation method thereof - Google Patents

Electronic grade glass cloth surface treating agent and preparation method thereof Download PDF

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CN116876216B
CN116876216B CN202310950006.4A CN202310950006A CN116876216B CN 116876216 B CN116876216 B CN 116876216B CN 202310950006 A CN202310950006 A CN 202310950006A CN 116876216 B CN116876216 B CN 116876216B
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coupling agent
silane coupling
mixing
agent
parts
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CN116876216A (en
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张国平
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Qingyuan Kairongde Electronic Special Materials Co ltd
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Qingyuan Kairongde Electronic Special Materials Co ltd
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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
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/50—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with organometallic compounds; with organic compounds containing boron, silicon, selenium or tellurium atoms
    • D06M13/51—Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond
    • D06M13/513—Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond with at least one carbon-silicon bond
    • D06M13/5135—Unsaturated compounds containing silicon atoms
    • 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
    • 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
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
    • D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
    • D06M13/203—Unsaturated carboxylic acids; Anhydrides, halides or salts thereof
    • 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
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
    • D06M13/368—Hydroxyalkylamines; Derivatives thereof, e.g. Kritchevsky bases
    • 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
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/50—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with organometallic compounds; with organic compounds containing boron, silicon, selenium or tellurium atoms
    • D06M13/503—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with organometallic compounds; with organic compounds containing boron, silicon, selenium or tellurium atoms without bond between a carbon atom and a metal or a boron, silicon, selenium or tellurium atom
    • D06M13/507—Organic silicon compounds without carbon-silicon bond
    • 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
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/50—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with organometallic compounds; with organic compounds containing boron, silicon, selenium or tellurium atoms
    • D06M13/51—Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond
    • D06M13/513—Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond with at least one carbon-silicon bond
    • 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
    • D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
    • D06M15/03—Polysaccharides or derivatives thereof
    • 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
    • D06M15/53—Polyethers

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Surface Treatment Of Glass Fibres Or Filaments (AREA)

Abstract

The invention belongs to the field of electronic grade glass fiber cloth processing, and particularly relates to an electronic grade glass cloth surface treating agent and a preparation method thereof. The surface treating agent comprises the following components in parts by weight: 0.5-2 parts of silane coupling agent, 1-5 parts of ionic surfactant, 0.001-0.005 part of defoamer, 0.5-1 part of glacial acetic acid and 80-100 parts of water; the silane coupling agent comprises the following components in percentage by mass of 0.3-0.5:0.5 to 1.0 of a mixture of an oxime group-containing silane coupling agent and an ureido group-containing silane coupling agent. The preparation method comprises adding defoamer into part of water, mixing, and adding glacial acetic acid to obtain solution 1; then adding an ionic surfactant into the residual water, mixing, adding a silane coupling agent, and uniformly stirring to obtain a solution 2; and finally adding the solution 2 into the solution 1 and mixing to obtain the product. Through the optimized surface treatment agent formula and process, the uniformity of the surface coating coupling agent of the glass fiber cloth can be enhanced, the tensile strength and the uniformity of the glass fiber cloth are enhanced, and the combination property of the glass fiber cloth and resin is effectively improved.

Description

Electronic grade glass cloth surface treating agent and preparation method thereof
Technical Field
The invention belongs to the field of electronic grade glass fiber cloth processing, and particularly relates to an electronic grade glass cloth surface treating agent and a preparation method thereof.
Background
The glass fiber is an excellent inorganic nonmetallic material, has higher mechanical property, low price and excellent electrical insulation property, is an electronic grade glass fiber cloth, is a fabric made of glass fiber, and is mainly used as a reinforcing material of glass fiber reinforced plastics, a chemical filter cloth, a high-pressure steam heat insulation material, a building material and the like.
The printed circuit board is a carrier of electronic components and consists of a plurality of layers of copper-clad plates. The copper-clad plate is prepared by taking electronic glass fiber cloth as a base, paving copper foil on the surface of the copper-clad plate after epoxy resin is solidified, and hot-pressing the copper-clad plate. The preparation of the electronic glass fiber cloth comprises the steps of firstly melting glass fiber raw materials to prepare warp yarns; sizing twice, and manufacturing warp yarns into grey cloth; and desizing, and carrying out surface treatment on the glass fiber cloth to obtain the electronic grade glass fiber cloth.
The process for preparing the electronic glass fiber cloth needs to carry out surface treatment to meet the requirements of the plate making process of the copper-clad plate.
The surface treatment is the last procedure in the production process of the electronic cloth and is also the most critical procedure. The existence of the process and the integrity thereof become the water diversion ridge of the 'imitation' electronic cloth and the 'authentic' electronic cloth which are accepted in the industry. Because the processing quality of the electronic cloth in the process is good or bad, the final product quality of the electronic cloth is directly affected. The quality of the final product of the electronic cloth is also an important key for the appearance quality of the copper-clad plate, the processing performance and the physical and chemical properties of the printed circuit board, so as to meet the development of the electronic industry in the directions of high precision, high density, high performance, microporation, thinning and layering.
The Chinese patent application CN111576040A discloses an ultrathin electronic glass fiber cloth surface treatment fluid which comprises the following raw materials in parts by weight: 98 parts of water, 1.1 to 1.5 parts of surface treating agent, 0.1 to 1 part of weak acid and 0.002 to 0.01 part of defoaming agent; the surface treating agent comprises Y-aminopropyl trimethoxy silane and N- (2-aminoethyl) -3-aminopropyl trimethoxy silane, wherein the weight ratio of the Y-aminopropyl trimethoxy silane to the N- (2-aminoethyl) -3-aminopropyl trimethoxy silane is 1.1-1.3: 1. The surface treatment liquid for the ultrathin electronic glass fiber cloth increases the binding force between the resin and the glass fiber cloth, so that the electronic glass fiber cloth is more suitable for manufacturing high-end printed circuit copper-clad plates.
The Chinese patent application CN113969503A discloses an electronic grade glass fiber cloth surface treating agent for a high-frequency high-speed plate and a preparation method thereof, wherein the surface treating agent comprises a vinyl silane coupling agent, a pH regulator, an antistatic agent, a sizing agent, a defoaming agent, a dispersing agent and pure water. The treating agent provided by the invention corresponds to a polyphenyl ether resin system, can be well combined with the polyphenyl ether resin system, and can be used for obtaining a PCB substrate with Dk and Df values further reduced, so that the requirement of 5G electronic equipment is met.
The Chinese patent application CN103422356A discloses an electronic grade glass fiber cloth surface treating agent and a method for producing glass fiber cloth, wherein the surface treating agent comprises the following components in percentage by mass: silane coupling agent 0.3-0.9%, acid regulator 0.3-0.8%, surfactant 0.1-0.5%, and deionized water in balance; the surface treating agent for the electronic grade glass fiber cloth provided by the invention has the advantages that the glass fiber cloth treated by the surface treating agent has better heat resistance, stronger water resistance and quick impregnation, and can be better combined with resin.
The water resistance, heat resistance and the like of the glass fiber cloth treated by the surface treating agent in the prior art are improved to a certain extent, but the tensile strength uniformity and the like of the glass fiber cloth are still required to be further improved.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide the electronic grade glass cloth surface treating agent and the preparation method thereof, the uniformity of the surface coating of the glass fiber cloth can be enhanced through the optimized formula and the technology of the surface treating agent, the tensile strength and the uniformity of the glass fiber cloth can be enhanced by adopting a specific coupling agent, a surface active agent and the like, and the combination property of the glass fiber cloth and resin can be effectively improved.
In order to achieve the purpose of the invention, the technical scheme adopted is as follows:
The surface treating agent for the electronic grade glass cloth comprises the following components in parts by weight: 0.5-2 parts of silane coupling agent, 1-5 parts of ionic surfactant, 0.001-0.005 part of defoamer, 0.5-1 part of glacial acetic acid and 80-100 parts of water; the silane coupling agent comprises the following components in percentage by mass of 0.3-0.5:0.5 to 1.0 of a mixture of an oxime group-containing silane coupling agent and an ureido group-containing silane coupling agent.
Preferably, the oximido silane coupling agent is a mixture of vinyl tributyl ketoximido silane VOS and tetrabutyl ketoximido silane TOS in a mass ratio of 1:2-4; the ureido silane coupling agent is a mixture of 3-ureido propyl triethoxysilane coupling agent KH-1161 and ureido propyl trimethoxy silane coupling agent KC-116 with the mass ratio of 1:0.2-0.5.
Preferably, the ionic surfactant is selected from at least one of tragacanth, polyoxyethylene hydrogenated castor oil, polyoxyethylene 400 monolaurate, polyoxyethylene nonylphenol ether, and triethanolamine oleate.
Preferably, the defoamer is at least two selected from organosilicon defoamer, polyether defoamer, mineral oil defoamer, modified silicon polyether defoamer and silicon dioxide; preferably a mixture of mineral oil and cyclodextrin modified silica in a mass ratio of 1:0.2-0.5.
Preferably, the ionic surfactant is a mixture of tragacanth, polyoxyethylene nonylphenol ether and triethanolamine oleate in a mass ratio of 1:0.3:2.
The invention also provides a preparation method of the surface treating agent, which comprises the following steps:
(1) Adding a defoaming agent into part of water, mixing, and then adding glacial acetic acid to obtain a solution 1;
(2) Adding an ionic surfactant into the residual water, mixing, adding a silane coupling agent, and uniformly stirring to obtain a solution 2;
(3) Adding the solution 2 into the solution 1, and mixing to obtain the final product.
Preferably, in the step (1), the part of water is 55-70% water, the stirring time during the mixing is 25-30min, and the stirring rotating speed is 75-90rpm.
Preferably, the mixing time in the step (2) is 50-60min, and the mixing and stirring speed is 120-150rpm; the speed of stirring the silane coupling agent is 100-110rpm, and the stirring time is 120-150min.
Preferably, the stirring speed in the step (3) is 50-70rpm, and the stirring time is 120-240min.
It is still another object of the present invention to provide an electronic grade glass cloth treated with the above surface treating agent.
Compared with the prior art, the invention has the beneficial effects that:
(1) The invention provides an electronic grade glass cloth surface treating agent and a preparation method thereof, wherein the uniformity of the surface coating coupling agent of glass fiber cloth can be enhanced through a preferable formula and a preferable process of the surface treating agent, and the tensile strength and the uniformity of the glass fiber cloth can be enhanced by adopting a specific coupling agent, a surfactant and the like, and the combination property of the glass fiber cloth and resin can be effectively improved.
(2) The invention provides an electronic grade glass cloth surface treating agent, which is compounded by using a specific organic reagent, and the surface treating agent synergistically reduces the interfacial tension of desized sizing cloth, is uniformly dispersed and has good dynamic wettability, so that the tensile strength and the uniformity of a finished product are improved.
Detailed Description
The invention is further described in connection with the following detailed description.
Example 1
The surface treating agent for the electronic grade glass cloth comprises the following components in parts by weight: 0.5 part of silane coupling agent, 1 part of ionic surfactant, 0.005 part of defoamer, 1 part of glacial acetic acid and 80 parts of water; the mass ratio of the silane coupling agent is 0.3:0.5 of an oxime group-containing silane coupling agent and an ureido group-containing silane coupling agent.
The oximido silane coupling agent is a mixture of vinyl tributyl ketoximido silane VOS and tetrabutyl ketoximido silane TOS in a mass ratio of 1:2; the ureido silane coupling agent is a mixture of 3-ureido propyl triethoxysilane coupling agent KH-1161 and ureido propyl trimethoxy silane coupling agent KC-116 with the mass ratio of 1:0.2.
The defoaming agent is a mixture of mineral oil and cyclodextrin modified silicon dioxide in a mass ratio of 1:0.5.
The ionic surfactant is a mixture of tragacanth, polyoxyethylene nonylphenol ether and triethanolamine oleate in a mass ratio of 1:0.3:2.
The preparation method comprises the following steps:
(1) Adding an antifoaming agent into 55% of water, mixing and stirring for 30min at a speed of 90rpm, and then adding glacial acetic acid to obtain a solution 1;
(2) Adding an ionic surfactant into the residual water, mixing for 60min at a rotating speed of 120rpm, adding a silane coupling agent, and stirring for 150min at a rotating speed of 100rpm to obtain a solution 2;
(3) Adding the solution 1 into the solution 2, and mixing at 50rpm for 240 min.
Example 2
The surface treating agent for the electronic grade glass cloth comprises the following components in parts by weight: 2 parts of silane coupling agent, 5 parts of ionic surfactant, 0.001 part of defoamer, 0.5 part of glacial acetic acid and 100 parts of water; the mass ratio of the silane coupling agent is 0.5:1.0 mixtures of oxime-containing and ureido silane coupling agents.
The oximido silane coupling agent is a mixture of vinyl tributyl ketoximido silane VOS and tetrabutyl ketoximido silane TOS in a mass ratio of 1:4; the ureido silane coupling agent is a mixture of 3-ureido propyl triethoxysilane coupling agent KH-1161 and ureido propyl trimethoxysilane coupling agent KC-116 with the mass ratio of 1:0.5.
The defoaming agent is a mixture of mineral oil and cyclodextrin modified silicon dioxide in a mass ratio of 1:0.2.
The ionic surfactant is a mixture of tragacanth, polyoxyethylene nonylphenol ether and triethanolamine oleate in a mass ratio of 1:0.3:2.
The preparation method comprises the following steps:
(1) Adding a defoaming agent into 70% of water, mixing and stirring for 25min at a speed of 75rpm, and then adding glacial acetic acid to obtain a solution 1;
(2) Adding an ionic surfactant into the residual water, mixing for 50min at a rotating speed of 150rpm, adding a silane coupling agent, and stirring for 120min at a rotating speed of 110rpm to obtain a solution 2;
(3) Adding the solution 1 into the solution 2, and mixing at 70rpm for 120 min.
Example 3
The surface treating agent for the electronic grade glass cloth comprises the following components in parts by weight: 1 part of silane coupling agent, 3 parts of ionic surfactant, 0.003 part of defoamer, 0.8 part of glacial acetic acid and 90 parts of water; the silane coupling agent comprises the following components in percentage by mass of 0.4:0.6 oximido silane coupling agent and method of making same mixtures of ureido silane coupling agents.
The oximido silane coupling agent is a mixture of vinyl tributyl ketoximido silane VOS and tetrabutyl ketoximido silane TOS in a mass ratio of 1:3; the ureido silane coupling agent is a mixture of 3-ureido propyl triethoxysilane coupling agent KH-1161 and ureido propyl trimethoxysilane coupling agent KC-116 with the mass ratio of 1:0.3.
The defoaming agent is a mixture of mineral oil and cyclodextrin modified silicon dioxide in a mass ratio of 1:0.4.
The ionic surfactant is a mixture of tragacanth, polyoxyethylene nonylphenol ether and triethanolamine oleate in a mass ratio of 1:0.3:2.
The preparation method comprises the following steps:
(1) Adding a defoaming agent into 65% of water, mixing and stirring for 28min at a speed of 80rpm, and then adding glacial acetic acid to obtain a solution 1;
(2) Adding an ionic surfactant into the residual water, mixing for 55min at a rotation speed of 130rpm, adding a silane coupling agent, and stirring for 130min at a rotation speed of 105rpm to obtain a solution 2;
(3) Adding the solution 1 into the solution 2, and mixing at 60rpm for 200 min.
Comparative example 1
This comparative example 1 differs from example 1 in that it does not contain an ureido group-containing silane coupling agent. The procedure is as in example 1.
Comparative example 2
This comparative example 1 differs from example 1 in that it does not contain an oxime group-containing silane coupling agent. The procedure is as in example 1.
Comparative example 3
The difference between this comparative example and example 1 is that the defoamer is a mixture of mineral oil and silica in a mass ratio of 1:0.5. The procedure is as in example 1.
Comparative example 4
The comparative example differs from example 1 in that the ureido group-containing silane coupling agent was changed to the preparation of the surface treating agent by using perfluorodecyl trimethoxysilane KH-F1013. The procedure is as in example 1.
Test
The surface treatment agent prepared by the invention is used for carrying out surface chemical treatment on 7628 desized cloth (thickness is 0.1-0.2 mm) produced by my department, thus obtaining the finished product electronic grade glass fiber cloth.
According to GB/T7689.5-2013 section 5 of the reinforcing material woven fabric Experimental method: the tensile strength of the finished product was measured in measurement of tensile breaking strength and elongation at break of glass fiber, and the results are shown in Table 1.
TABLE 1
The MTM-2010M image measuring instrument is adopted to measure the widths of warp and weft yarns of the finished electronic grade glass fiber cloth, and the uniformity of the finished warp yarns in opening is calculated, and the results are shown in tables 2-8.
TABLE 2
TABLE 3 Table 3
TABLE 4 Table 4
TABLE 5
TABLE 6
TABLE 7
TABLE 8
The foregoing detailed description is directed to one of the possible embodiments of the present invention, which is not intended to limit the scope of the invention, but is to be accorded the full scope of all such equivalents and modifications so as not to depart from the scope of the invention.

Claims (6)

1. The surface treating agent for the electronic grade glass cloth is characterized by comprising the following components in parts by weight: 0.5-2 parts of silane coupling agent, 1-5 parts of ionic surfactant, 0.001-0.005 part of defoamer, 0.5-1 part of glacial acetic acid and 80-100 parts of water; the silane coupling agent comprises the following components in percentage by mass of 0.3-0.5:0.5 to 1.0 of a mixture of an oxime group-containing silane coupling agent and an ureido group-containing silane coupling agent; the oximido silane coupling agent is a mixture of vinyl tributyl ketoximido silane VOS and tetrabutyl ketoximido silane TOS in a mass ratio of 1:2-4; the ureido silane coupling agent is a mixture of 3-ureido propyl triethoxysilane coupling agent KH-1161 and ureido propyl trimethoxy silane coupling agent KC-116 with the mass ratio of 1:0.2-0.5;
the defoaming agent is a mixture of mineral oil and cyclodextrin modified silicon dioxide in a mass ratio of 1:0.2-0.5;
The ionic surfactant is a mixture of tragacanth, polyoxyethylene nonylphenol ether and triethanolamine oleate in a mass ratio of 1:0.3:2.
2. A method for preparing the surface treating agent according to claim 1, comprising the steps of:
(1) Adding a defoaming agent into part of water, mixing, and then adding glacial acetic acid to obtain a solution 1;
(2) Adding an ionic surfactant into the residual water, mixing, adding a silane coupling agent, and uniformly stirring to obtain a solution 2;
(3) Adding the solution 2 into the solution 1, and mixing to obtain the final product.
3. The method according to claim 2, wherein the part of water in the step (1) is 55-70% water, the stirring time during the mixing is 25-30min, and the stirring speed is 75-90rpm.
4. The method according to claim 2, wherein the mixing time in the step (2) is 50 to 60 minutes, and the mixing stirring speed is 120 to 150rpm; the speed of stirring the silane coupling agent is 100-110rpm, and the stirring time is 120-150min.
5. The method according to claim 2, wherein the stirring speed in the step (3) is 50 to 70rpm, and the stirring time is 120 to 240min.
6. An electronic grade glass cloth treated with the surface treating agent of claim 1.
CN202310950006.4A 2023-07-31 2023-07-31 Electronic grade glass cloth surface treating agent and preparation method thereof Active CN116876216B (en)

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JPH04241917A (en) * 1991-01-11 1992-08-28 Fuji Fiber Glass Kk Glass fiber mat and glass fiber reinforced nylon reaction injection molded product
CN103556461A (en) * 2013-09-16 2014-02-05 上海宏和电子材料有限公司 Electronic grade glass fiber cloth surface treating agent and method

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