CN118257044A - Ultrathin electronic-grade glass fiber cloth and preparation method thereof - Google Patents
Ultrathin electronic-grade glass fiber cloth and preparation method thereof Download PDFInfo
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- CN118257044A CN118257044A CN202410455167.0A CN202410455167A CN118257044A CN 118257044 A CN118257044 A CN 118257044A CN 202410455167 A CN202410455167 A CN 202410455167A CN 118257044 A CN118257044 A CN 118257044A
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- glass fiber
- fiber cloth
- grade glass
- electronic grade
- warp
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- 239000004744 fabric Substances 0.000 title claims abstract description 70
- 239000003365 glass fiber Substances 0.000 title claims abstract description 70
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 238000009990 desizing Methods 0.000 claims abstract description 27
- 238000004513 sizing Methods 0.000 claims abstract description 17
- 238000004381 surface treatment Methods 0.000 claims abstract description 12
- 238000009941 weaving Methods 0.000 claims abstract description 8
- 238000004804 winding Methods 0.000 claims abstract description 6
- 239000000835 fiber Substances 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 17
- 230000008569 process Effects 0.000 claims description 11
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 239000011521 glass Substances 0.000 claims description 6
- 239000007822 coupling agent Substances 0.000 claims description 5
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 239000011152 fibreglass Substances 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000011161 development Methods 0.000 abstract description 3
- 239000002390 adhesive tape Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 235000014676 Phragmites communis Nutrition 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 210000001161 mammalian embryo Anatomy 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
- D03D15/242—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads inorganic, e.g. basalt
- D03D15/267—Glass
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
- D03D13/008—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft characterised by weave density or surface weight
-
- 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
- D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
- D06B1/02—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by spraying or projecting
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Woven Fabrics (AREA)
Abstract
The invention relates to the technical field of electronic-grade glass fiber cloth, in particular to an ultrathin electronic-grade glass fiber cloth and a preparation method thereof, wherein the preparation method comprises the following steps: s1, sizing after warping, winding the sized warp on a warp beam, and merging the warp beam to obtain a beam; s2, weaving by adopting an air-jet loom, sequentially drafting a loom beam, and weft inserting on the air-jet loom, and interweaving the loom beam into glass fiber grey cloth with different warp and weft densities; s3, opening the glass fiber blank cloth, and then desizing and surface treatment are carried out to obtain the ultrathin electronic grade glass fiber cloth. The invention reduces the thickness of the electronic grade glass fiber cloth, meets the requirement of continuous development of the copper-clad plate towards the direction of thinner and thinner, and is beneficial to improving the product performance of the downstream copper-clad plate and the circuit board.
Description
Technical Field
The invention relates to the technical field of electronic-grade glass fiber cloth, in particular to an ultrathin electronic-grade glass fiber cloth and a preparation method thereof.
Background
The glass fiber is an inorganic nonmetallic material with excellent performance, various types, and has the advantages of good insulativity, strong heat resistance, good corrosion resistance and high mechanical strength. Glass fibers are commonly used as reinforcing materials in composite materials, electrical and thermal insulation materials, circuit substrates, and the like in various areas of national economy. The glass fiber cloth is made by drawing glass into superfine glass filaments, and the glass filaments have good flexibility. The glass fiber is spun into yarn, and then the yarn is woven into glass fiber cloth by a loom.
With the progress of technology, terminal electronic devices gradually trend toward thin thickness, light weight, short length and small volume, and as a definite continuous development direction, internal electronic components of the terminal electronic devices also gradually trend toward thin, light weight, short length and small volume. As an indispensable material for producing copper-clad plates, electronic-grade glass fiber cloth is also a special basic material for producing printed circuit boards, and has been continuously developed in recent years in a direction of becoming thinner and thinner. As a basic material for electronic equipment, the characteristics of the electronic glass fiber cloth are superior, otherwise, the requirement of rapidly developed electronic equipment cannot be met.
Disclosure of Invention
The first object of the present invention is to provide an extremely thin electronic grade glass fiber cloth which not only reduces the thickness, but also has a flat cloth cover and uniform tension.
The second object of the invention is to provide a preparation method of the ultrathin electronic grade glass fiber cloth.
The invention provides a preparation method of an ultrathin electronic-grade glass fiber cloth, which comprises the following steps:
s1, sizing after warping, winding the sized warp on a warp beam, and merging the warp beam to obtain a beam;
S2, weaving by adopting an air-jet loom, sequentially drafting a loom beam, and weft inserting on the air-jet loom, and interweaving the loom beam into glass fiber grey cloth with different warp and weft densities;
S3, opening the glass fiber blank cloth, and then desizing and surface treatment are carried out to obtain the ultrathin electronic grade glass fiber cloth.
Preferably, the warp and weft yarns are base yarns BC4500.
Preferably, the sizing process in step S1 adopts a slurry concentration of 4-8%.
Preferably, the warp and weft density in the weaving process in the step S2 is (97+/-2) × (96+/-2) root/inch.
Preferably, the fiber opening in the step S3 is hot water fiber opening, the fiber opening temperature is 80-95 ℃, and the fiber opening pressure is 1-5N.
Preferably, the desizing temperature of the desizing in the step S3 is 355-365 ℃ and the desizing time is 44-50 hours.
Preferably, the treating agent used in the surface treatment in the step S3 is an amino coupling agent, and the linear speed of the treatment is 25+/-10 m/S.
The invention also provides the ultrathin electronic grade glass fiber cloth prepared by the preparation method of the ultrathin electronic grade glass fiber cloth.
Preferably, the thickness of the ultrathin electronic grade glass fiber cloth is 0.011-0.013mm, and the basis weight is 8.3+/-1 g/m 2.
The invention also provides application of the ultrathin electronic-grade glass fiber cloth in copper-clad plates, printed circuit boards, aviation or military industry.
The beneficial effects are that:
the invention reduces the thickness of the electronic grade glass fiber cloth, meets the requirement of continuous development of the copper-clad plate towards the direction of thinner and thinner, and is beneficial to improving the product performance of the downstream copper-clad plate and the circuit board.
According to the invention, through fiber opening, desizing and surface treatment, fiber opening is carried out twice, so that the warp and weft yarns of the glass fiber cloth cover are flatter, the width of the warp and weft yarns is increased, gaps between the warp and weft yarns are filled by loose single fibers, and the gaps between the warp and weft yarns are reduced, so that the surface of the glass fiber cloth is more compact and uniform; although only secondary desizing is performed, the method still has better desizing effect.
Detailed Description
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular forms also include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
The preparation method of the ultrathin electronic grade glass fiber cloth comprises the following steps:
S1, sequentially placing 880 BC4500 raw yarns on a warping creel, pulling out yarn heads, passing through a tensioner, sequentially placing the yarn heads on a reed, passing the discharged yarns through a yarn guide disc, passing through a sizing groove, passing through a drying wheel to finish a sizing process, sticking adhesive tapes after all the yarns are discharged, winding the adhesive tapes on warp beams, and obtaining a loom beam after the warp beams pass through 6 warp beams; the sizing process adopts the sizing agent with the concentration of 6 percent,
S2, weaving by adopting an air-jet loom, sequentially drafting a loom beam, and weft inserting on the air-jet loom, and interweaving the loom beam into glass fiber grey cloth with different warp and weft densities; the warp yarns and the weft yarns are raw yarns BC4500, the warp and weft density is 97 x 96 yarns/inch, and the width is 1273-1282mm;
s3, carrying out hot water fiber opening on the glass fiber embryo cloth, wherein the fiber opening temperature is 90 ℃, and the fiber opening pressure is 3N; then carrying out secondary desizing and surface treatment, wherein the desizing temperature of the secondary desizing is 360 ℃, the desizing time is 48 hours, the treating agent adopted in the surface treatment is an amino coupling agent, and the treatment line speed is 250m/s; finally, the extremely thin electronic grade glass fiber cloth is obtained.
The thickness of the extremely thin electronic grade glass fiber cloth is 0.012mm, and the basis weight is 8.3+/-1 g/m 2.
Example 2
The preparation method of the ultrathin electronic grade glass fiber cloth comprises the following steps:
S1, sequentially placing 870 BC4500 raw yarns on a warping creel, pulling out yarn heads, passing through a tensioner, sequentially placing the yarn heads on a reed, passing the discharged yarns through a yarn guide disc, passing through a sizing groove, passing through a drying wheel to finish a sizing process, sticking adhesive tapes after all the yarns are discharged, winding on warp beams, and obtaining a beam after the warp beams pass through 6 warp beams; the sizing process adopts the sizing agent with the concentration of 4 percent,
S2, weaving by adopting an air-jet loom, sequentially drafting a loom beam, and weft inserting on the air-jet loom, and interweaving the loom beam into glass fiber grey cloth with different warp and weft densities; the warp yarns and the weft yarns are raw yarns BC4500, the warp and weft density is 95 x 94 yarns/inch, and the width is 1273-1282mm;
s3, carrying out hot water fiber opening on the glass fiber embryo cloth, wherein the fiber opening temperature is 80 ℃, and the fiber opening pressure is 1N; then carrying out secondary desizing and surface treatment, wherein the desizing temperature of the secondary desizing is 355 ℃, the desizing time is 44 hours, the treating agent adopted in the surface treatment is an amino coupling agent, and the linear speed of the treatment is 15m/s; finally, the extremely thin electronic grade glass fiber cloth is obtained.
The thickness of the extremely thin electronic grade glass fiber cloth is 0.011mm, and the basis weight is 8.2g/m 2.
Example 3
The preparation method of the ultrathin electronic grade glass fiber cloth comprises the following steps:
S1, sequentially placing 900 BC4500 raw yarns on a warping creel, pulling out yarn heads, passing through a tensioner, sequentially placing the yarn heads on a reed, passing the discharged yarns through a yarn guide disc, passing through a sizing groove, passing through a drying wheel to finish a sizing process, sticking adhesive tapes after all the yarns are discharged, winding the adhesive tapes on warp beams, and obtaining a loom beam after the warp beams pass through 6 warp beams; the sizing process adopts 8 percent of sizing agent concentration,
S2, weaving by adopting an air-jet loom, sequentially drafting a loom beam, and weft inserting on the air-jet loom, and interweaving the loom beam into glass fiber grey cloth with different warp and weft densities; the warp yarn and the weft yarn are both raw yarn BC4500, the warp and weft density is 99 x 98 pieces/inch, and the width is 1273-1282mm;
S3, carrying out hot water fiber opening on the glass fiber embryo cloth, wherein the fiber opening temperature is 95 ℃, and the fiber opening pressure is 5N; then carrying out secondary desizing and surface treatment, wherein the desizing temperature of the secondary desizing is 365 ℃, the desizing time is 50 hours, the treating agent adopted in the surface treatment is an amino coupling agent, and the treatment line speed is 35m/s; finally, the extremely thin electronic grade glass fiber cloth is obtained.
The thickness of the extremely thin electronic grade glass fiber cloth is 0.013mm, and the basis weight is 8.4g/m 2.
Performance test:
the thickness pair ratios of the extremely thin electronic grade glass fiber cloth obtained in examples 1-3 and the conventional thin glass fiber cloth 1017, 1027 are shown in table 1:
TABLE 1
As can be seen from Table 1, the extremely thin electronic grade glass fiber cloth prepared in the embodiment 1 of the invention has lighter basis weight and thinner thickness than the existing thin glass fiber cloth 1027 and 1017, and can meet the requirement of the current production of copper-clad plates and printed circuit boards on the thinner glass fiber cloth.
Physical properties of the extremely thin electronic grade glass cloth obtained in example 1 and the conventional thin glass cloths 1017 and 1027 are shown in table 2:
TABLE 2
As can be seen from table 2, the extremely thin electronic grade glass fiber cloth obtained in example 1 has lower air permeability than the existing thin glass fiber cloths 1017 and 1027, and the inter-yarn gaps are smaller and smoother; and the longitudinal and latitudinal pulling force is different from the existing thin glass fiber cloth. Therefore, the invention obtains a new ultrathin electronic grade glass fiber cloth, and provides more choices for the production of downstream products.
The ultrathin electronic-grade glass fiber cloth prepared by adopting the embodiment 1-3 is additionally provided with the fiber opening process, so that the warp and weft yarns of the glass fiber cloth face are flatter, the widths of the warp and weft yarns are increased by about 10 mu m, after two times of fiber opening, gaps between the warp and weft yarns are filled with loose single fibers, the gaps between the warp and weft yarns are reduced, and the surface of the glass fiber cloth becomes more compact and uniform. In the invention, although only secondary desizing is adopted and primary desizing is not arranged, the desizing treatment in the embodiment 1 has the loss on ignition ratio LOI of 0.195 and the slurry residue ratio of 0.075+/-0.05, and still has better desizing effect.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (10)
1. The preparation method of the ultrathin electronic grade glass fiber cloth is characterized by comprising the following steps of:
s1, sizing after warping, winding the sized warp on a warp beam, and merging the warp beam to obtain a beam;
S2, weaving by adopting an air-jet loom, sequentially drafting a loom beam, and weft inserting on the air-jet loom, and interweaving the loom beam into glass fiber grey cloth with different warp and weft densities;
S3, opening the glass fiber blank cloth, and then desizing and surface treatment are carried out to obtain the ultrathin electronic grade glass fiber cloth.
2. The method for producing extremely thin electronic grade fiberglass cloth according to claim 1, wherein the warp and weft yarns are raw yarns BC4500.
3. The method for preparing ultrathin electronic grade glass fiber cloth according to claim 1, wherein the sizing process in the step S1 adopts a slurry concentration of 4-8%.
4. The method for preparing ultrathin electronic grade glass fiber cloth according to claim 1, wherein the warp and weft density in the weaving process of the step S2 is (97+ -2) × (96+ -2) root/inch.
5. The method for preparing ultrathin electronic grade glass fiber cloth according to claim 1, wherein the fiber opening in the step S3 is hot water fiber opening, the fiber opening temperature is 80-95 ℃, and the fiber opening pressure is 1-5N.
6. The method for preparing ultrathin electronic grade glass fiber cloth according to claim 1, wherein the desizing temperature in the step S3 is 355-365 ℃ and the desizing time is 44-50 hours.
7. The method for preparing ultrathin electronic grade glass fiber cloth according to claim 1, wherein the treating agent adopted in the surface treatment in the step S3 is an amino coupling agent, and the linear speed of the treatment is 25+/-10 m/S.
8. The ultrathin electronic grade glass fiber cloth prepared by the preparation method of the ultrathin electronic grade glass fiber cloth according to any one of claims 1 to 7.
9. The ultrathin electronic grade glass fiber cloth of claim 8, wherein the ultrathin electronic grade glass fiber cloth has a thickness of 0.011-0.013mm and a basis weight of 8.3 ± 1g/m 2.
10. Use of an extremely thin electronic grade glass cloth according to any of claims 8-9 in copper-clad boards, printed circuit boards, aviation or military industry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410455167.0A CN118257044A (en) | 2024-04-16 | 2024-04-16 | Ultrathin electronic-grade glass fiber cloth and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410455167.0A CN118257044A (en) | 2024-04-16 | 2024-04-16 | Ultrathin electronic-grade glass fiber cloth and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118257044A true CN118257044A (en) | 2024-06-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410455167.0A Pending CN118257044A (en) | 2024-04-16 | 2024-04-16 | Ultrathin electronic-grade glass fiber cloth and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118257044A (en) |
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2024
- 2024-04-16 CN CN202410455167.0A patent/CN118257044A/en active Pending
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