CN113818172A - Desizing method of low-expansion-coefficient glass fiber cloth - Google Patents
Desizing method of low-expansion-coefficient glass fiber cloth Download PDFInfo
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- CN113818172A CN113818172A CN202111131159.3A CN202111131159A CN113818172A CN 113818172 A CN113818172 A CN 113818172A CN 202111131159 A CN202111131159 A CN 202111131159A CN 113818172 A CN113818172 A CN 113818172A
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- 239000004744 fabric Substances 0.000 title claims abstract description 99
- 239000003365 glass fiber Substances 0.000 title claims abstract description 95
- 238000000034 method Methods 0.000 title claims abstract description 52
- 238000009990 desizing Methods 0.000 title claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 230000008569 process Effects 0.000 claims description 20
- 238000001035 drying Methods 0.000 claims description 13
- 238000005406 washing Methods 0.000 claims description 11
- 238000012545 processing Methods 0.000 claims description 6
- 238000004026 adhesive bonding Methods 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 239000007822 coupling agent Substances 0.000 claims description 3
- 238000011143 downstream manufacturing Methods 0.000 claims description 3
- 230000003116 impacting effect Effects 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 238000011161 development Methods 0.000 abstract description 7
- 230000007123 defense Effects 0.000 abstract description 5
- 239000000969 carrier Substances 0.000 abstract description 4
- 238000007380 fibre production Methods 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012876 carrier material Substances 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004100 electronic packaging Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B21/00—Successive treatments of textile materials by liquids, gases or vapours
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B15/00—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
- D06B23/20—Arrangements of apparatus for treating processing-liquids, -gases or -vapours, e.g. purification, filtration or distillation
- D06B23/22—Arrangements of apparatus for treating processing-liquids, -gases or -vapours, e.g. purification, filtration or distillation for heating
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C7/00—Heating or cooling textile fabrics
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Reinforced Plastic Materials (AREA)
- Surface Treatment Of Glass Fibres Or Filaments (AREA)
Abstract
The invention discloses a desizing method of glass fiber cloth with low expansion coefficient, which belongs to the technical field of glass fiber production and can realize the desizing operation of the glass fiber cloth, wherein glass fiber gray cloth on a desizing roller is placed in a BH smoldering furnace for smoldering to further remove organic matters on the surface, and the BH smoldering furnace is provided with a sectional type temperature rise curve for temperature rise; organic matters on the surface of the glass fiber cloth are removed, and meanwhile, the tensile strength of the glass fiber cloth cannot be damaged. The chip carrier meets the technical development requirements of chip carriers of high-end industries such as aerospace, national defense and military industry, supercomputers and the like. The problems in the prior art are solved.
Description
Technical Field
The invention relates to a desizing method of glass fiber cloth with a low expansion coefficient, and belongs to the technical field of glass fiber production.
Background
The low-expansion-coefficient electronic glass fiber is a high-performance glass fiber for electronic packaging materials, is mainly used as a carrier material of a chip, has excellent performances of high tensile strength, high elastic modulus, good impact resistance, good chemical stability, good fatigue resistance, high temperature resistance and the like, and can be widely applied to the field of electronic information industry chips which have strict requirements on the performance of composite materials, such as aerospace, aviation, weapons, ships, chemical engineering and the like. With the rapid development of the intellectualization and informatization of the electronic information industry, the market demand of the high-strength high-modulus low-expansion-coefficient electronic glass fiber is rapidly increased.
At present, only American AGY and Japanese NTB of high-strength high-modulus low-expansion-coefficient glass fiber products have production capacity, domestic enterprises do not master mature technologies in glass formulation, wire drawing, twisting process and the like, the industrial requirements cannot be met, the market gap is huge, and the urgent need for overcoming the problems is met.
Aiming at the situation, in combination with the development requirements of the industry, companies plan to develop the key technical research of the high-strength high-modulus low-expansion-coefficient electronic glass fiber core, project products aim at the development trend and the requirements of high-end composite material markets such as aerospace, defense military industry and the like, the technical bottleneck is solved, the cost restriction is broken, the high-strength high-modulus low-expansion-coefficient electronic glass fiber with excellent performances such as high tensile strength, high elastic modulus, good impact resistance, good chemical stability, good fatigue resistance, high temperature resistance and the like is prepared through the key technical attack of the project, the tracking simulation is realized to the innovation lead, and the technical development requirements of chip carriers of high-end industries such as aerospace, defense military industry, super computers and the like are met.
At present, the field of domestic high-modulus glass fiber cloth is still in a preliminary stage, and the desizing of the high-modulus glass fiber cloth is not a mature technology. The traditional desizing process can remove organic matters on the surface of the glass fiber cloth, but the tensile strength performance of the glass fiber cloth is greatly lost.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a desizing method of a glass fiber cloth with a low expansion coefficient, which solves the problems in the prior art.
The invention relates to a desizing method of glass fiber cloth with low expansion coefficient, which comprises the following steps:
the method comprises the following steps: preparing glass fiber grey cloth, wherein the glass fiber cloth enters a water tank through a cloth guide roller, and organic matters on the surface of the glass fiber grey cloth are dissolved in hot water;
step two: washing the roller, conveying the glass fiber grey cloth on the outer surface of the roller after the glass fiber grey cloth enters the water tank through the cloth guide roller, and further impacting organic matters in the glass fiber grey cloth by the roller running at a high speed under the drive of the motor;
step three: drying the glass fiber grey cloth, drying the glass fiber cloth washed by the roller, removing the moisture on the surface of the glass fiber grey cloth, and winding the glass fiber cloth onto a desizing roller;
step four: BH smoldering, namely placing the glass fiber grey cloth on the desizing roller in a BH smoldering furnace for smoldering to further remove organic matters on the surface, and setting a sectional type temperature rise curve in the BH smoldering furnace for temperature rise;
step five: FN processing: and (4) cooling the temperature of the glass fiber grey cloth roll subjected to the smoldering in the step four BH to room temperature, treating the grey cloth roll by an FN (FN) treating machine, and entering the next procedure.
Further, the water in the water tank in the first step is hot water with a certain temperature, and the temperature range is 50-70 ℃.
Further, in the second step, the running direction of the roller is the same as the moving direction of the glass fiber grey cloth, the linear speed of the surface of the inner cylinder of the roller is greater than the running speed of the glass fiber grey cloth, hot water in the inner cylinder is thrown to the glass fiber grey cloth, and organic matters in the glass fiber grey cloth are impacted.
Further, in the second step, the running speed of the glass fiber gray fabric is 20-30m/min, and the rotating speed of the inner cylinder of the roller is 350-400 rpm.
Further, the drying temperature in the third step is 55-65 ℃.
Further, the step four of the segmented temperature rise curve control process includes: the method comprises a temperature-rise preheating stage, a first temperature-rise control stage, a second temperature-rise control stage, a third temperature-rise control stage, a fourth temperature-rise control stage and a fifth temperature-rise control stage, wherein the temperature of each temperature-rise control stage is continuously increased, the control function and the end point temperature of each stage are respectively set, and a corresponding process curve is selected for each stage; and calculating a set temperature value per minute through a control algorithm according to the stage time, the initial temperature, the end point temperature and the process curve, controlling the actual temperature to be equal to the set temperature in real time through a controller, and controlling the actual temperature change curve to be completely fitted with the set process curve.
Further, the temperature of the temperature rise control phase is set to T0, T1, T2, T3, and the time is set to T1, T2, T3, T4, T5, T6; the method comprises the following steps of (1) dividing into a temperature rising preheating stage and an instant temperature: t0+ (T1-T0)/T1, the temperature of the first temperature-rising control stage is kept at T1 and the heat preservation time is T2-T1 until the temperature rises to T1, and the instant temperature of the second temperature-rising control stage is as follows: t1+ (T2-T1)/(T3-T2) until the temperature rises to T2, the temperature is kept at T2 in the third temperature-rising control stage for T4-T3, the instant temperature position of the fourth temperature-rising control stage is T2+ (T3-T2)/(T5-T4) until the temperature rises to T3, the temperature of the fifth temperature-rising control stage is kept at T3 for T6-T5, and the temperature of each temperature-rising control stage is continuously increased. Further, the process processed by the FN handler in step five is: and coating a layer of coupling agent on the surface of the glass fiber grey cloth through an FN (FN) processing machine to provide a connecting bridge for gluing in a downstream process.
Compared with the prior art, the invention has the following beneficial effects:
the desizing method of the glass fiber cloth with the low expansion coefficient can realize the desizing operation of the glass fiber cloth, remove organic matters on the surface of the glass fiber cloth and simultaneously can not damage the tensile strength of the glass fiber cloth. The chip carrier meets the technical development requirements of chip carriers of high-end industries such as aerospace, national defense and military industry, supercomputers and the like. The problems in the prior art are solved.
Drawings
FIG. 1 is a diagram showing a drum washing step in the embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 in accordance with an embodiment of the present invention;
FIG. 3 is a graph of temperature rise in an embodiment of the present invention;
Detailed Description
The invention is further illustrated by the following figures and examples:
example 1:
as shown in fig. 1-2, the method for desizing the glass fiber cloth with the low expansion coefficient comprises the following steps:
the method comprises the following steps: preparing glass fiber grey cloth, wherein the glass fiber cloth enters a water tank through a cloth guide roller, and organic matters on the surface of the glass fiber grey cloth are dissolved in hot water;
step two: washing the roller, conveying the glass fiber grey cloth on the outer surface of the roller after the glass fiber grey cloth enters the water tank through the cloth guide roller, and further impacting organic matters in the glass fiber grey cloth by the roller running at a high speed under the drive of the motor;
step three: drying the glass fiber grey cloth, drying the glass fiber cloth washed by the roller, removing the moisture on the surface of the glass fiber grey cloth, and winding the glass fiber cloth onto a desizing roller;
step four: BH smoldering, namely placing the glass fiber grey cloth on the desizing roller in a BH smoldering furnace for smoldering to further remove organic matters on the surface, and setting a sectional type temperature rise curve in the BH smoldering furnace for temperature rise;
step five: FN processing: and (4) cooling the temperature of the glass fiber grey cloth roll subjected to the smoldering in the step four BH to room temperature, treating the grey cloth roll by an FN (FN) treating machine, and entering the next procedure.
In the first step, the water in the water tank is hot water with a certain temperature, and the temperature range is 50-70 ℃.
And in the second step, the running direction of the roller is the same as the moving direction of the glass fiber grey cloth, the linear speed of the surface of the inner cylinder of the roller is greater than the running speed of the glass fiber grey cloth, hot water in the inner cylinder is thrown to the glass fiber grey cloth, and organic matters in the glass fiber grey cloth are impacted.
In the second step, the running speed of the glass fiber gray fabric is 20-30m/min, and the rotating speed of the inner cylinder of the roller is 350-400 rpm.
The drying temperature in the third step is 55-65 ℃.
The sectional temperature rise curve control process in the fourth step comprises the following steps: the temperature of the temperature rise control phase is set to T0, T1, T2, T3, and the time is set to T1, T2, T3, T4, T5, T6; the method comprises the following steps of (1) dividing into a temperature rising preheating stage and an instant temperature: t0+ (T1-T0)/T1, the temperature of the first temperature-rising control stage is kept at T1 and the heat preservation time is T2-T1 until the temperature rises to T1, and the instant temperature of the second temperature-rising control stage is as follows: t1+ (T2-T1)/(T3-T2) until the temperature rises to T2, the temperature of the third temperature-raising control stage is kept at T2 for T4-T3, the instant temperature of the fourth temperature-raising control stage is T2+ (T3-T2)/(T5-T4) until the temperature rises to T3, the temperature of the fifth temperature-raising control stage is kept at T3 for T6-T5, the temperature of each temperature-raising control stage is continuously increased, the control function and the end point temperature of each stage are respectively set, and a corresponding process curve is selected for each stage; and calculating a set temperature value per minute through a control algorithm according to the stage time, the initial temperature, the end point temperature and the process curve, controlling the actual temperature of the drying room to be equal to the set temperature in real time through a controller, and controlling the actual temperature change curve to be completely fitted with the set process curve.
The FN processor in the fifth step comprises the following steps: and coating a layer of coupling agent on the surface of the glass fiber grey cloth through an FN (FN) processing machine to provide a connecting bridge for gluing in a downstream process.
The working principle of the embodiment is as follows:
test i:
test 1: washing process parameters
The running speed is as follows: 20-30m/min
Single drum speed: 350-400rpm
Temperature of the hot water tank: 50-70 deg.C
Drying temperature: 55-65 deg.C
Test 2: washing process parameters
The running speed is as follows: 20-30m/min
Double-roller rotating speed: 350-400rpm
Temperature of the hot water tank: 50-70 deg.C
Drying temperature: 55-65 deg.C
(3) Measurement verification
1) Comparison of organic content
And (3) smoldering the product before and after the same coil is washed by water by using a muffle furnace, setting the condition temperature to be 625 ℃ and the time to be 30min, and comparing the ignition loss before and after the product to obtain the organic matter content of the product.
Through test detection and comparison, the combustible content of the grey cloth is reduced by about 10% after the double-roller washing compared with the roller washing, and the desizing treatment of the subsequent process is facilitated.
Test II,
Process parameters
(1) Washing technological parameters
The running speed is as follows: 20-30m/min
Double-roller rotating speed: 350-400rpm
Temperature of the hot water tank: 50-70 deg.C
Drying temperature: 55-65 deg.C
(2) BH temperature rise curve
(3) Measurement verification
1) Comparison of organic content
And (3) smoldering the product before and after the same coil is washed by water by using a muffle furnace, setting the condition temperature to be 625 ℃ and the time to be 30min, and comparing the ignition loss before and after the product to obtain the organic matter content of the product.
| Serial number | Grey cloth | After washing with water | Reduction of the ratio | After BH smoldering | Reduction of the |
| 1 | 2.78 | 0.98 | 64.7％ | 0.043 | 98.5％ |
| 2 | 2.68 | 0.96 | 64.2％ | 0.041 | 98.5％ |
| 3 | 2.74 | 0.96 | 65.0％ | 0.039 | 98.6％ |
| 4 | 2.59 | 0.94 | 63.7％ | 0.036 | 98.6％ |
| 5 | 2.69 | 1.03 | 61.7％ | 0.045 | 98.3％ |
| 6 | 2.71 | 1.05 | 61.3％ | 0.041 | 98.5％ |
| 7 | 2.58 | 0.93 | 64.0％ | 0.034 | 98.7％ |
| 8 | 2.76 | 0.94 | 65.9％ | 0.041 | 98.5％ |
| 9 | 2.65 | 1.04 | 60.8％ | 0.033 | 98.8％ |
| 10 | 2.63 | 1.01 | 61.6％ | 0.042 | 98.4％ |
Through test and comparison, compared with the combustible material content of the grey cloth after washing, the combustible material content of the grey cloth is reduced by 60-65%, and after BH stewing, the combustible material content is reduced by more than 98%, so that the aim of removing organic matters on the surface of a product is fulfilled.
2) The glass fiber 2116 product adopting the desizing method of the invention is compared with the traditional method in tensile strength:
respectively taking a sample with the width of 25mm and the length of more than 100mm by the desizing method and the product (warp and weft) of the traditional process; and clamping the sample on a product tensile machine, wherein the effective length between the clamps is 100mm until the product is pulled until the tensile strength of the product is reduced.
Practical tests prove that the warp and weft tensile strength can be improved by more than 10% compared with the traditional process. In combination with the combustible reduction, the purpose of the test has been achieved: the tensile strength is obviously improved under the condition of removing the precursor of the organic matters on the surface of the glass fiber cloth.
By adopting the low-expansion-coefficient glass fiber cloth desizing method in the embodiment of the invention described in the attached drawings, the desizing operation of the glass fiber cloth can be realized, organic matters on the surface of the glass fiber cloth can be removed, and the tensile strength of the glass fiber cloth can not be damaged. The chip carrier meets the technical development requirements of chip carriers of high-end industries such as aerospace, national defense and military industry, supercomputers and the like. The problems in the prior art are solved. The present invention is not limited to the embodiments described, but rather, variations, modifications, substitutions and alterations are possible without departing from the spirit and scope of the present invention.
Claims (8)
1. A desizing method of glass fiber cloth with low expansion coefficient is characterized in that: the method comprises the following steps:
the method comprises the following steps: preparing glass fiber grey cloth, wherein the glass fiber cloth enters a water tank through a cloth guide roller, and organic matters on the surface of the glass fiber grey cloth are dissolved in hot water;
step two: washing the roller, conveying the glass fiber grey cloth on the outer surface of the roller after the glass fiber grey cloth enters the water tank through the cloth guide roller, and further impacting organic matters in the glass fiber grey cloth by the roller running at a high speed under the drive of the motor;
step three: drying the glass fiber grey cloth, drying the glass fiber cloth washed by the roller, removing the moisture on the surface of the glass fiber grey cloth, and winding the glass fiber cloth onto a desizing roller;
step four: BH smoldering, namely placing the glass fiber grey cloth on the desizing roller in a BH smoldering furnace for smoldering to further remove organic matters on the surface, and setting a sectional type temperature rise curve in the BH smoldering furnace for temperature rise;
step five: FN processing: and (4) cooling the temperature of the glass fiber grey cloth roll subjected to the smoldering in the step four BH to room temperature, treating the grey cloth roll by an FN (FN) treating machine, and entering the next procedure.
2. The method for desizing the low-expansion-coefficient glass fiber cloth according to claim 1, characterized in that: in the first step, the water in the water tank is hot water with a certain temperature, and the temperature range is 50-70 ℃.
3. The method for desizing the low-expansion-coefficient glass fiber cloth according to claim 1, characterized in that: and in the second step, the running direction of the roller is the same as the moving direction of the glass fiber grey cloth, the linear speed of the surface of the inner cylinder of the roller is greater than the running speed of the glass fiber grey cloth, hot water in the inner cylinder is thrown to the glass fiber grey cloth, and organic matters in the glass fiber grey cloth are impacted.
4. The method for desizing the low-expansion-coefficient glass fiber cloth according to claim 1, characterized in that: in the second step, the running speed of the glass fiber gray fabric is 20-30m/min, and the rotating speed of the inner cylinder of the roller is 350-400 rpm.
5. The method for desizing the low-expansion-coefficient glass fiber cloth according to claim 1, characterized in that: the drying temperature in the third step is 55-65 ℃.
6. The method for desizing the low-expansion-coefficient glass fiber cloth according to claim 1, characterized in that: the sectional temperature rise curve control process in the fourth step comprises the following steps: the method comprises a temperature-rise preheating stage, a first temperature-rise control stage, a second temperature-rise control stage, a third temperature-rise control stage, a fourth temperature-rise control stage and a fifth temperature-rise control stage, wherein the temperature of each temperature-rise control stage is continuously increased, the control function and the end point temperature of each stage are respectively set, and a corresponding process curve is selected for each stage; and calculating a set temperature value per minute through a control algorithm according to the stage time, the initial temperature, the end point temperature and the process curve, controlling the actual temperature to be equal to the set temperature in real time through a controller, and controlling the actual temperature change curve to be completely fitted with the set process curve.
7. The method for desizing the low-expansion-coefficient glass fiber cloth according to claim 6, characterized in that: the temperature of the temperature rise control stage is set to be T0, T1, T2 and T3, and the time is set to be T1, T2, T3, T4, T5 and T6; the method comprises the following steps of (1) dividing into a temperature rising preheating stage and an instant temperature: t0+ (T1-T0)/T1, the temperature of the first temperature-rising control stage is kept at T1 and the heat preservation time is T2-T1 until the temperature rises to T1, and the instant temperature of the second temperature-rising control stage is as follows: t1+ (T2-T1)/(T3-T2) until the temperature rises to T2, the temperature is kept at T2 in the third temperature-rising control stage for T4-T3, the instant temperature position of the fourth temperature-rising control stage is T2+ (T3-T2)/(T5-T4) until the temperature rises to T3, the temperature of the fifth temperature-rising control stage is kept at T3 for T6-T5, and the temperature of each temperature-rising control stage is continuously increased.
8. The method for desizing the low-expansion-coefficient glass fiber cloth according to claim 1, characterized in that: the process processed by the FN processor in the fifth step is as follows: and coating a layer of coupling agent on the surface of the glass fiber grey cloth through an FN (FN) processing machine to provide a connecting bridge for gluing in a downstream process.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114645365A (en) * | 2022-03-18 | 2022-06-21 | 泰山玻璃纤维邹城有限公司 | Splitting process easy to clean electronic-grade glass fiber cloth slurry and slurry used in splitting process |
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| CN203498636U (en) * | 2013-10-16 | 2014-03-26 | 陕西宝昱科技工业有限公司 | High-pressure water fiber splitting device |
| CN103911861A (en) * | 2013-12-31 | 2014-07-09 | 上海宏和电子材料有限公司 | Electronic grade glass fiber cloth surface conditioning agent and silane coupling agent preparation method |
| FR3039536A1 (en) * | 2015-07-31 | 2017-02-03 | Air Liquide | PROCESS FOR MANUFACTURING FIBER GLASS PRODUCTS COMPRISING STACKING AND DESENSING STAGES AND APPARATUS ADAPTED FOR ITS IMPLEMENTATION |
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2021
- 2021-09-26 CN CN202111131159.3A patent/CN113818172A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3012845A (en) * | 1960-08-31 | 1961-12-12 | Hess Goldsmith & Company Inc | Process for desizing glass fabric |
| CN101532229A (en) * | 2009-03-12 | 2009-09-16 | 珠海富华复合材料有限公司 | Process for flattening post treatment of electronic grade glass fiber cloth |
| CN101880923A (en) * | 2010-06-28 | 2010-11-10 | 中国科学院西安光学精密机械研究所 | Method for improving tensile strength of carbon fibers |
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| CN114645365A (en) * | 2022-03-18 | 2022-06-21 | 泰山玻璃纤维邹城有限公司 | Splitting process easy to clean electronic-grade glass fiber cloth slurry and slurry used in splitting process |
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