Electronic-grade glass fiber cloth 1078 and preparation method thereof

Abstract

The invention provides an electronic-grade glass fiber cloth 1078 and a preparation method thereof, and the preparation method comprises the following steps: S1, warping warp yarns, sizing, winding the sized warp yarns on a warp beam, and merging the warp beam to obtain a warp beam; s2, sequentially drafting a weaving shaft, and feeding the warp yarns and the weft yarns into an air jet loom for weaving to form glass fiber grey cloth; and S3, carrying out primary desizing, secondary desizing and surface treatment on the glass fiber grey cloth to obtain the electronic-grade glass fiber cloth 1078. The electronic-grade glass fiber cloth 1078 prepared by the invention not only has the performance of other cloth, but also has high additional value, is more energy-saving and more environment-friendly, is beneficial to the product performance of downstream copper-clad plates, and meets the requirement of continuous development of the copper-clad plates.

Description

Technical Field

[0001] This invention relates to the field of electronic-grade glass fiber cloth technology, and in particular to an electronic-grade glass fiber cloth 1078 and its preparation method. Background Technology

[0002] Electronic cloth is a general term for electronic-grade fiberglass cloth used in the electronics industry. It is an essential material for the production of copper-clad laminates and a basic material specifically for printed circuit boards. Its downstream applications are wide-ranging, with communication electronics, computers, consumer electronics, and automotive electronics being the four largest application areas, accounting for 33.0%, 28.6%, 14.8%, and 11.2% of demand respectively, totaling 87.6%. As a basic material for electronic devices, electronic cloth needs superior properties to meet the demands of rapidly evolving electronic equipment.

[0003] With the advancement of technology, electronic fiberglass cloth is a crucial component of internal electronic devices, representing a definite and continuous development trend. As an essential material for the production of copper-clad laminates and a fundamental material for printed circuit boards, electronic fiberglass cloth must exhibit superior properties. Therefore, the development of new cloth types will inevitably become a new direction. To this end, this invention proposes a preparation process for a novel second-generation low-dielectric fiberglass cloth type 1078. Summary of the Invention

[0004] The purpose of this invention is to provide an electronic-grade glass fiber cloth 1078 and its preparation method. This electronic-grade glass fiber cloth 1078, as a new type of cloth, can improve the properties of electronic glass fiber cloth itself and meet the needs of increasingly developed electronic devices.

[0005] In a first aspect, the present invention provides a method for preparing electronic-grade glass fiber cloth 1078, comprising the following steps: S1. After warping, the warp yarns are sized. The sized warp yarns are then wound onto the warp beam. The warp beam is then combined to obtain the weaving beam. S2. Pass the warp and weft yarns through the heddles in sequence and feed them into the air-jet loom to weave the fabric into glass fiber fabric. S3. The glass fiber fabric is subjected to primary desizing, secondary desizing and surface treatment to obtain electronic grade glass fiber fabric 1078.

[0006] Preferably, the warp and weft yarns are made of raw yarn LDC D500.

[0007] Preferably, in step S1, the slurry concentration used in the sizing process is (8.0±0.5)%.

[0008] Preferably, in step S2, the warp and weft density of the weaving process is (54±2)*(54±2) threads / inch.

[0009] Preferably, in step S2, the basis weight of the glass fiber fabric is 41±1.5 g / m³. 2 .

[0010] Preferably, in step S3, the primary desizing is performed by water washing.

[0011] Preferably, in step S3, the secondary desizing is performed by smoldering at a furnace temperature of 430±10℃.

[0012] In a second aspect, the present invention provides an electronic-grade glass fiber cloth 1078, which is prepared by the aforementioned method for preparing electronic-grade glass fiber cloth 1078.

[0013] Preferably, the basis weight of the electronic-grade glass fiber cloth 1078 is 41 ± 0.5 g / m². 2 The longitudinal tensile force is 5.5 ± 1 kg / cm. 2 The lateral tensile force is 5.5 ± 1 kg / cm. 2 .

[0014] A third aspect of the present invention provides the application of the aforementioned electronic-grade glass fiber cloth 1078 in the fields of copper-clad laminates and printed circuit boards.

[0015] The present invention has at least the following beneficial effects: The electronic-grade glass fiber cloth 1078 prepared by this invention not only has the properties of other types of cloth, but also has high added value, is more energy-efficient and more environmentally friendly, which is beneficial to the product performance of downstream copper clad laminates and meets the needs of the continuous development of copper clad laminates. Detailed Implementation

[0016] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, 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 pertains.

[0017] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form includes the plural form unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0018] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Example This embodiment provides a method for preparing electronic-grade glass fiber cloth 1078, including the following steps: Warping process: 682 LDC D500 raw yarns are placed on the warping frame in sequence, the yarn ends are pulled out and passed through the tensioner and placed in order on the reed. The arranged yarns are passed through the guide plate, through the sizing tank, and through the drying wheel to complete the sizing process. The sizing concentration is 8.0%. After all the yarns are arranged, they are taped and wound onto the warp beam. The warp beam passes through 4 warp beams and is completed by the warping machine to become the second-generation low dielectric 1078 fabric weaving beam.

[0020] Weaving process: An air-jet loom is used for weaving. The sized warp beams are threaded through the heddles sequentially, and the warp and weft yarns are fed into the air-jet loom for weaving. The weaving process is completed with a warp density of 54 yarns / inch, a weft density of 54 yarns / inch, and a fabric basis weight of 41-42 g / m². 2 , thus obtaining glass fiber prefabricated fabric.

[0021] Processing procedure: The strength, softness and other physical properties of the fabric can be maintained during the washing process; the secondary desizing is carried out by furnace desizing at 430℃. The sizing and ash on the surface of the electronic grade glass fiber fabric sample are easily decomposed and vaporized. After fiber opening and impregnation (preferably using silane coupling agent), the second-generation low dielectric electronic grade glass fiber 1078 fabric is finally obtained. The performance parameters of the electronic grade glass fiber fabric 1078 numbered 1#-3# obtained from three parallel tests are shown in Table 1.

[0022] Table 1

[0023] The electronic-grade glass fiber cloth 1078 prepared by this invention not only has the properties of other types of cloth, but also has high added value, is more energy-efficient and more environmentally friendly, which is beneficial to the product performance of downstream copper clad laminates and meets the needs of the continuous development of copper clad laminates.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A process for the production of an electronic grade glass fiber cloth 1078, characterized by, The method comprises the following steps: S1, warp yarns are sized after warping, the sized warp yarns are wound on a warp beam, and a weaving beam is obtained after the warp beams are warped together; S2, the weaving beam is threaded in sequence, the warp yarns and weft yarns are fed into an air-jet loom to weave a glass fiber gray cloth; S3, the glass fiber gray cloth is subjected to primary desizing, secondary desizing and surface treatment to obtain the electronic-grade glass fiber cloth 1078.

2. The method of making an electronic grade glass fiber cloth 1078 according to claim 1, wherein, The warp yarns and weft yarns adopt raw yarns LDC D500.

3. The method of making an electronic grade glass fiber cloth 1078 according to claim 1, wherein, In step S1, the sizing process adopts sizing material with a concentration of (8.0±0.5) %.

4. The method of making an electronic grade glass fiber cloth 1078 according to claim 1, wherein, In step S2, the warp-weft density of the weaving process is (54±2)*(54±2) roots / inch.

5. The method of making an electronic grade glass fiber cloth 1078 according to claim 1, wherein, In step S2, the glass fiber fabric has a basis weight of 41 ± 1.5 g / m 2 .

6. The method of making an electronic grade glass fiber cloth 1078 according to claim 1, wherein, In step S3, the primary desizing adopts water washing desizing.

7. The method of making an electronic grade glass fiber cloth 1078 according to claim 1, wherein, In step S3, the secondary desizing adopts furnace temperature 430±10℃ to perform desizing by steaming.

8. An electronic grade glass fiber cloth 1078 characterized in that, The electronic-grade glass fiber cloth 1078 is prepared by the method of any one of claims 1-7.

9. The electronic grade glass fiber cloth 1078 of claim 8, wherein, The electronic grade glass fiber cloth 1078 has a grammage of 41±0.5 g / m 2 , a warp tensile force of 5.5±1 kg / cm 2 , and a weft tensile force of 5.5±1 kg / cm 2 .

10. Application of the electronic-grade glass fiber cloth 1078 of any one of claims 8-9 in the field of copper-clad plates and printed circuit boards.

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