阅读说明：本技术 一种高强度电子级玻璃纤维布及其制造方法 (High-strength electronic-grade glass fiber cloth and manufacturing method thereof ) 是由 周庐 徐水根 夏勇 于 2020-12-11 设计创作，主要内容包括：本发明涉及玻璃纤维布领域,尤其涉及一种高强度电子级玻璃纤维布及其制造方法。主要制造过程为,配制软化液,将电子级玻璃纤维布置于软化液中进行超声处理,得到软化的电子级玻璃纤维布；烘干,将烘干的软化的电子级玻璃纤维布置于清水中,继续超声10-15min；加入偶联剂、碳纤维,高温下超声；塑形,得到产品。本发明方法制造的电子级玻璃纤维布强度高,拉伸强度在40000MPa以上,应用范围广。(The invention relates to the field of glass fiber cloth, in particular to high-strength electronic-grade glass fiber cloth and a manufacturing method thereof. The main manufacturing process comprises the steps of preparing softening liquid, and arranging the electronic-grade glass fiber in the softening liquid for ultrasonic treatment to obtain softened electronic-grade glass fiber cloth; drying, namely arranging the dried and softened electronic grade glass fiber in clear water, and continuing to perform ultrasonic treatment for 10-15 min; adding a coupling agent and carbon fibers, and carrying out ultrasonic treatment at high temperature; and (5) shaping to obtain a product. The electronic grade glass fiber cloth manufactured by the method has high strength, the tensile strength is above 40000MPa, and the application range is wide.)

1. The high-strength electronic-grade glass fiber cloth is characterized by being prepared by the following steps:

(1) preparing softening liquid, and arranging the electronic-grade glass fiber in the softening liquid for ultrasonic treatment to obtain softened electronic-grade glass fiber cloth; (2) drying, namely arranging the dried and softened electronic grade glass fiber in clear water, and continuing to perform ultrasonic treatment for 10-15 min; (3) adding a coupling agent and carbon fibers, and carrying out ultrasonic treatment at high temperature; (4) and (5) shaping to obtain a product.

2. The high strength electronic grade fiberglass cloth of claim 1, wherein the softening solution has a composition of: water, surfactant and silicone oil.

3. The high strength electronic grade glass fiber cloth according to claim 1, wherein the softening solution comprises the following components in parts by weight: 100 parts of water, 3-5 parts of surfactant and 5-10 parts of silicone oil.

4. The high-strength electronic-grade glass fiber cloth according to claim 2 or 3, wherein the surfactant is one or more selected from fatty glyceride, sodium dodecyl benzene sulfonate and lauric acid.

5. The high-intensity electronic-grade glass fiber cloth according to any one of claims 1 to 4, wherein the ultrasonic treatment in the step (1) is carried out at a temperature of 45 to 50 ℃ for 15 to 20 min.

6. The high strength electronic grade glass fiber cloth according to claim 5, wherein the coupling agent in step (3) is a silane coupling agent.

7. The high strength electronic grade glass fiber cloth according to claim 6, wherein the drying conditions in the step (2) are as follows: 1MPa, 40-50 deg.C.

8. The high intensity electronic grade glass fiber cloth according to claim 6, wherein the temperature of the ultrasound in the step (3) is 55-60 ℃.

9. The high intensity electronic grade glass fiber cloth according to any one of claims 6 to 8, wherein the frequency of the ultrasound in the step (3) is 40KHz, and the ultrasound time is 20-30 min.

10. The high strength electronic grade fiberglass cloth of claim 9, wherein the method of shaping in step (4) is electric ironing.

Technical Field

The invention relates to the field of glass fiber cloth, in particular to high-strength electronic-grade glass fiber cloth and a manufacturing method thereof.

Background

The glass fiber is an excellent inorganic non-metallic material, has high mechanical property, high temperature resistance, corrosion resistance, good chemical stability, low price and excellent electrical insulation property, is applied to the fields of aerospace, national defense and military industry, motor and electrical appliances and the like on a large scale, is mainly applied to the fields of electromagnetic shielding materials, conductive materials, antistatic materials, heating materials, PTC materials, pressure-sensitive materials and the like, and the application field of the glass fiber is gradually expanded along with the development of research and application.

The electronic grade glass fiber cloth has 33 specifications, the thinnest thickness is only 0.028mm, and the heaviest thickness can reach 252g/m²The method is mainly used for manufacturing the copper-clad plate. With the development of printed circuits, the requirements on the strength and performance of glass fiber cloth are higher and higher.

Disclosure of Invention

The technical problem solved by the invention is as follows: the existing electronic grade glass fiber cloth has insufficient strength and is easy to fuzz.

The invention provides a high-strength electronic-grade glass fiber cloth, and particularly provides the following technical scheme:

a high-strength electronic-grade glass fiber cloth is prepared by the following steps:

(1) preparing softening liquid, and arranging the electronic-grade glass fibers in the softening liquid for ultrasonic treatment to obtain softened electronic-grade glass fiber cloth; (2) drying, namely arranging the dried and softened electronic grade glass fiber in clear water, and continuing to perform ultrasonic treatment for 10-15 min; (3) adding a coupling agent and carbon fibers, and carrying out ultrasonic treatment at high temperature; (4) and (5) shaping to obtain a product.

As a further improvement, the softening liquid comprises the following components: water, surfactant and silicone oil.

As a further improvement, the softening liquid comprises the following components in parts by weight: 100 parts of water, 3-5 parts of surfactant and 5-10 parts of silicone oil.

As a further improvement, the surfactant is selected from one or more of fatty glyceride, sodium dodecyl benzene sulfonate and lauric acid.

As a further improvement, the ultrasonic treatment in the step (1) is carried out for 15-20min at the temperature of 45-50 ℃.

As a further improvement, the coupling agent in the step (3) is a silane coupling agent.

As a further improvement, the drying conditions in the step (2) are as follows: 1MPa, 40-50 deg.C.

As a further improvement, the temperature of the ultrasound in the step (3) is 55-60 ℃.

As a further improvement, the ultrasonic frequency in the step (3) is 40KHz, and the ultrasonic time is 20-30 min.

As a further improvement, the shaping method in the step (4) is electric ironing.

Compared with the prior art, the invention has the advantages that:

a softening liquid consisting of a surfactant and silicone oil is prepared in advance, and the electronic-grade glass fiber cloth is subjected to ultrasonic treatment in the softening liquid, so that the softening degree is high, and the surface fibers of the glass fiber cloth cannot be damaged; the softened glass fiber cloth is subjected to ultrasonic treatment again in clear water, so that the fiber looseness is further increased; and adding a coupling agent and carbon fibers for ultrasonic treatment to form a complex, and increasing the strength of the electronic grade glass fiber cloth, wherein the tensile strength of the electronic grade glass fiber cloth is more than 40000 MPa.

Detailed Description

The present invention will be further described with reference to specific embodiments for the purpose of making the objects, technical solutions and advantages of the present invention more apparent, but the present invention is not limited to these examples. It should be noted that, without conflict, any combination between the embodiments or technical features described below may form a new embodiment. In the invention, all parts and percentages are mass units, and the adopted equipment, raw materials and the like can be purchased from the market or are commonly used in the field. The methods in the following examples are conventional in the art unless otherwise specified.

Example 1

The method for manufacturing the high-strength electronic grade glass fiber cloth comprises the following steps:

(1) preparing a softening solution consisting of 100 parts of water, 3 parts of fatty glyceride and 5 parts of silicone oil, and arranging the electronic-grade glass fiber in the softening solution for ultrasonic treatment, wherein the temperature of the softening solution is 45 ℃ during ultrasonic treatment, and ultrasonic treatment is carried out for 20min to obtain softened electronic-grade glass fiber cloth; (2) drying at 40-50 deg.C under 1Mpa, placing the dried softened electronic grade glass fiber in clear water, and continuing to perform ultrasonic treatment for 10 min; (3) adding silane coupling agent and carbon fiber, and performing ultrasonic treatment at 55 deg.C for 20min at 40KHz frequency. (4) Shaping: repeatedly ironing for 5 times by using an electric iron, wherein the temperature of a soleplate of the electric iron is 50 ℃, and obtaining the product. The performance parameters of the prepared electronic grade glass fiber cloth are shown in table 1.

Example 2

The method for manufacturing the high-strength electronic grade glass fiber cloth comprises the following steps:

(1) preparing a softening solution consisting of 100 parts of water, 5 parts of fatty glyceride and 10 parts of silicone oil, and arranging the electronic-grade glass fiber in the softening solution for ultrasonic treatment, wherein the temperature of the softening solution is 45 ℃ during ultrasonic treatment, and ultrasonic treatment is carried out for 20min to obtain softened electronic-grade glass fiber cloth; (2) drying at 40-50 deg.C under 1Mpa, placing the dried softened electronic grade glass fiber in clear water, and continuing to perform ultrasonic treatment for 10 min; (3) adding silane coupling agent and carbon fiber, and performing ultrasonic treatment at 55 deg.C for 20min at 40KHz frequency. (4) Shaping: repeatedly ironing for 5 times by using an electric iron, wherein the temperature of a soleplate of the electric iron is 50 ℃, and obtaining the product. The performance parameters of the prepared electronic grade glass fiber cloth are shown in table 1.

Example 3

The method for manufacturing the high-strength electronic grade glass fiber cloth comprises the following steps:

(1) preparing a softening solution consisting of 100 parts of water, 3 parts of fatty glyceride and 10 parts of silicone oil, and arranging the electronic-grade glass fiber in the softening solution for ultrasonic treatment, wherein the temperature of the softening solution is 45 ℃ during ultrasonic treatment, and ultrasonic treatment is carried out for 20min to obtain softened electronic-grade glass fiber cloth; (2) drying at 40-50 deg.C under 1Mpa, placing the dried softened electronic grade glass fiber in clear water, and continuing to perform ultrasonic treatment for 10 min; (3) adding silane coupling agent and carbon fiber, and performing ultrasonic treatment at 55 deg.C for 20min at 40KHz frequency. (4) Shaping: repeatedly ironing for 5 times by using an electric iron, wherein the temperature of a soleplate of the electric iron is 50 ℃, and obtaining the product. The performance parameters of the prepared electronic grade glass fiber cloth are shown in table 1.

Example 4

The method for manufacturing the high-strength electronic grade glass fiber cloth comprises the following steps:

(1) preparing a softening solution consisting of 100 parts of water, 3 parts of fatty glyceride and 5 parts of silicone oil, and arranging the electronic-grade glass fiber in the softening solution for ultrasonic treatment, wherein the temperature of the softening solution is 50 ℃ during ultrasonic treatment, and ultrasonic treatment is carried out for 20min to obtain softened electronic-grade glass fiber cloth; (2) drying at 40-50 deg.C under 1Mpa, placing the dried softened electronic grade glass fiber in clear water, and continuing to perform ultrasonic treatment for 10 min; (3) adding silane coupling agent and carbon fiber, and performing ultrasonic treatment at 55 deg.C for 20min at 40KHz frequency. (4) Shaping: repeatedly ironing for 5 times by using an electric iron, wherein the temperature of a soleplate of the electric iron is 50 ℃, and obtaining the product. The performance parameters of the prepared electronic grade glass fiber cloth are shown in table 1.

Example 5

The high-strength electronic grade glass fiber cloth is manufactured, and the difference between the embodiment and the embodiment 1 is only that the ultrasonic condition in the step (1) is 50 ℃, the ultrasonic time is 10min, and the performance parameters of the manufactured electronic grade glass fiber cloth are shown in the table 1.

Example 6

The high-strength electronic-grade glass fiber cloth is manufactured, and the difference between the embodiment and the embodiment 1 is only that in the step (3), the ultrasonic condition is 60 ℃, the ultrasonic time is 30min, and the performance parameters of the manufactured electronic-grade glass fiber cloth are shown in the table 1.

Example 7

High strength electronic grade glass fiber cloth was manufactured, and this example differs from example 1 only in that lauric acid was used instead of fatty acid glyceride, and the performance parameters of the manufactured electronic grade glass fiber cloth are shown in table 1.

Example 8

The high strength electronic grade glass fiber cloth was manufactured, and this example is different from example 1 only in that sodium dodecylbenzenesulfonate was used instead of fatty acid glyceride, and the performance parameters of the manufactured electronic grade glass fiber cloth are shown in table 1.

Comparative example 1

The comparative example differs from example 1 in that no softening liquid was prepared in step (1), and the electronic grade glass fibers were directly placed in clear water for sonication. The performance parameters of the prepared electronic grade glass fiber cloth are shown in table 1.

Comparative example 2

This comparative example differs from example 1 in that the composition of the softening liquid in step (1) is 100 parts water plus 5 parts silicone oil. The performance parameters of the prepared electronic grade glass fiber cloth are shown in table 1.

Comparative example 3

This comparative example differs from example 1 in that the softening liquid in step (1) has a composition of 100 parts water plus 3 parts fatty acid glycerides. The performance parameters of the prepared electronic grade glass fiber cloth are shown in table 1.

Comparative example 4

This comparative example is different from example 1 in that, without the step (2), the silane coupling agent and the carbon fiber were directly added after softening, and the ultrasonication was continued. The performance parameters of the prepared electronic grade glass fiber cloth are shown in table 1.

Comparative example 5

This comparative example is different from example 1 in that only carbon fibers are added in step (3) and no silane coupling agent is added. The performance parameters of the prepared electronic grade glass fiber cloth are shown in table 1.

The tensile strength and abrasion resistance of the electronic grade glass fiber cloth prepared in each example and comparative example were measured using national standards, and the results are shown in table 1.

Item	Tensile Strength (MPa)	Abrasion resistance Strength (kgf/cm)2)
			Example 1	43200	5.0
Example 2	43600	5.2
			Example 3	44000	5.3
Example 4	43200	5.1
			Example 5	43300	5.2
Example 6	43200	5.0
			Example 7	43100	5.1
Example 8	43100	5.0
			Comparative example 1	25000	3.3
Comparative example 2	28000	3.8
			Comparative example 3	27000	3.6
Comparative example 4	30000	4.0
			Comparative example 5	32000	3.4

Table 1.

Conclusion analysis:

from the results of the examples 1 to 3, it can be seen that the amount of the components of the softening liquid has a certain influence on the tensile strength and the wear resistance of the electronic grade glass fiber cloth; the results of comparative examples 1 to 3 show that the composition of the softening liquid has an important influence on the tensile strength and abrasion resistance of the electronic grade glass fiber cloth. From the data of examples 7 and 8 and example 1, it can be known that the softening liquid compounded by the fatty glyceride, the lauric acid or the sodium dodecyl benzene sulfonate and the silicone oil provided by the application can well soften the glass fiber cloth, increase the gap, form a complex after adding the silane coupling agent and the carbon fiber, and further increase the strength of the electronic grade glass fiber cloth.

From the results of examples 4-6, it can be seen that the specific parameters of each step, such as the time and temperature of the ultrasonic wave, affect the strength of the electronic grade fiberglass cloth. Therefore, the strength of the electronic-grade glass fiber cloth is greatly enhanced by improving the composition of the solution for ultrasound and the ultrasound conditions and adding the carbon fiber and the silane coupling agent.

The electronic-grade glass fiber cloth prepared by the method has high strength and wide application range.

The invention is not to be considered as limited to the specific embodiments thereof, but is to be understood as being modified in all respects, all changes and equivalents that come within the spirit and scope of the invention.