A low dielectric loss polytetrafluoroethylene microwave plate and its preparation method

A polytetrafluoroethylene and polyperfluoroethylene propylene technology, which is applied in the field of low dielectric loss polytetrafluoroethylene microwave sheet and its preparation, can solve the problem of poor mechanical properties of copper clad laminate materials, poor material bonding performance, and bonding degree. It can simplify the preparation scheme, improve the dielectric loss, and improve the dispersion performance.

Active Publication Date: 2022-04-26
深圳市德诚旺科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the related technologies mentioned above, the applicant believes that the polytetrafluoroethylene resin is modified through simple filler loading and monomer structure. Due to the weak polarity of polytetrafluoroethylene, the relationship between the filler and the modified monomer The combination degree is not high, which will lead to poor bonding performance of the material, resulting in poor mechanical properties of the copper clad laminate material and high dielectric loss

Method used

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  • A low dielectric loss polytetrafluoroethylene microwave plate and its preparation method
  • A low dielectric loss polytetrafluoroethylene microwave plate and its preparation method
  • A low dielectric loss polytetrafluoroethylene microwave plate and its preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0031] S1. In parts by weight, weigh 45mL of absolute ethanol, 10mL of deionized water, 6mL of glacial acetic acid and 1mL of ionic liquid in a blender, stir and mix at room temperature for 25min, and collect the modified mixture; Ratio 1:5:10, add ionic liquid and tetrabutyl titanate to absolute ethanol, stir and mix and collect the base liquid; the ionic liquid is 1-butyl-3-methylimidazolium tetrafluoroboric acid salt ionic liquid;

[0032] S2. According to the mass ratio of 1:5, drop the modified mixed solution into the base liquid, control the dropping rate at 0.05mL / min, and control the stirring rate at 250r / min during the dropping, after the dropping is completed, let stand Aging for 25min, centrifugation at 2000r / min and removal of the supernatant, the modified sol was collected;

[0033] S3. According to the mass ratio of 6:1, the viscosity is 5×10 -3 Pas, polytetrafluoroethylene emulsion with a solid content of 60% and a viscosity of 2×10 -3Pas and polyperfluoroeth...

Embodiment 2

[0037] S1. Weigh 47 mL of absolute ethanol, 12 mL of deionized water, 7 mL of glacial acetic acid and 1 mL of ionic liquid, respectively, and place them in a mixer. After stirring and mixing at room temperature for 27 minutes, the modified mixed solution is collected; according to the mass ratio of 1:5:10 , adding the ionic liquid and tetrabutyl titanate to absolute ethanol, stirring and mixing and collecting the matrix liquid; the ionic liquid is 1-butyl-3-methylimidazolium tetrafluoroborate ionic liquid;

[0038] S2. Add the modified mixture dropwise to the base liquid at a mass ratio of 1:5, control the drop rate to be 0.05mL / min, and control the stirring rate to be 275r / min during dropwise addition. After the dropwise addition is completed, let stand Aged for 27min, centrifuged at 2500r / min and removed the supernatant to collect the modified sol;

[0039] S3. According to the mass ratio of 6:1, take the viscosity of 5×10 -3 Pas, 65% solids PTFE emulsion with viscosity 2×1...

Embodiment 3

[0043] S1. Weigh 50 mL of absolute ethanol, 15 mL of deionized water, 8 mL of glacial acetic acid and 2 mL of ionic liquid, respectively, and place them in a mixer. After stirring and mixing at room temperature for 30 minutes, the modified mixed solution is collected; the mass ratio is 1:5:10 , adding the ionic liquid and tetrabutyl titanate to absolute ethanol, stirring and mixing and collecting the matrix liquid; the ionic liquid is 1-butyl-3-methylimidazolium tetrafluoroborate ionic liquid;

[0044] S2. Add the modified mixture dropwise to the base liquid at a mass ratio of 1:5, control the drop rate to be 0.05mL / min, and control the stirring rate to be 300r / min during dropwise addition. After the dropwise addition is completed, let stand Aged for 30min, centrifuged at 3000r / min and removed the supernatant to collect the modified sol;

[0045] S3. According to the mass ratio of 6:1, take the viscosity of 5×10 -3 Pas, 65% solids PTFE emulsion with viscosity 2×10 -3 Pas and...

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Abstract

The application relates to the field of polymer materials, and specifically discloses a low dielectric loss polytetrafluoroethylene microwave plate and a preparation method thereof. The low dielectric loss polytetrafluoroethylene microwave plate includes the following materials in parts by weight: 35-40 parts of polytetrafluoroethylene emulsion, 3-5 parts of polyfluoroethylene propylene emulsion, 3-5 parts of plasticizer, 10-15 parts Modified sol solution; the modified sol solution is titanium dioxide sol solution; the polytetrafluoroethylene microwave plate of the present application improves the mechanical properties of the polytetrafluoroethylene microwave plate and reduces its dielectric loss. In addition, the preparation method of a low dielectric loss polytetrafluoroethylene microwave sheet of the present application adopts the scheme of ball milling and pressure molding, which not only improves the production efficiency of the microwave sheet, but also improves the production efficiency of the polytetrafluoroethylene microwave sheet. mechanical strength.

Description

technical field [0001] The application relates to the field of polymer materials, more specifically, it relates to a low dielectric loss polytetrafluoroethylene microwave plate and a preparation method thereof. Background technique [0002] 5G network is a general term for the upcoming fifth-generation communication technology. With the advent of the 5G era, various hardware supporting facilities, such as base station transmitting antennas and mobile terminal built-in receiving antennas, are facing the problem of upgrading. The higher frequency band, faster propagation speed, and lower signal delay required by 5G network standards have put forward more stringent requirements for the selection of 5G antenna materials. [0003] Based on the purpose of 5G development, it is necessary to select suitable materials to meet the requirements of the existing 5G development. Among them, polytetrafluoroethylene not only has outstanding electrical insulation, but also has low dielectri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/18C08L27/12C08K9/04C08K7/24C08K3/22C08J5/18C08J3/215B29C43/02B29C43/58B29B13/10B29B7/00B29L7/00
CPCC08J5/18C08J3/215B29C43/02B29C43/58B29B13/10B29B7/002C08J2327/18C08J2427/12C08K9/04C08K7/24C08K2003/2241C08K2201/011B29C2043/5808B29C2043/5816B29L2007/002
Inventor 姜琳叶炜炜田春
Owner 深圳市德诚旺科技有限公司
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