CN104674423A - Blending fiber cloth, high frequency antenna substrate and manufacturing method thereof - Google Patents
Blending fiber cloth, high frequency antenna substrate and manufacturing method thereof Download PDFInfo
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- CN104674423A CN104674423A CN201310617897.8A CN201310617897A CN104674423A CN 104674423 A CN104674423 A CN 104674423A CN 201310617897 A CN201310617897 A CN 201310617897A CN 104674423 A CN104674423 A CN 104674423A
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Abstract
The invention provides a blending fiber cloth which is used for manufacturing the antenna substrate, a high frequency antenna substrate and a manufacturing method thereof. The blending fiber cloth which is used for manufacturing the antenna substrate is formed by glass fibers and polypropylene fibers by blending. The blending fiber cloth solves the problem that continuous glass fibers are uneven in scattering in a polypropylene substrate and polypropylene resin is poor in invasion of the glass fibers due to the fact that the blending fiber cloth is knitting cloth which is formed by the glass fibers and the polypropylene fibers after blending so that high-intensity light high-frequency wave-transparent base materials are prepared.
Description
Technical field
The present invention relates to Meta Materials field, in particular to a kind of blend fibre cloth, high frequency antenna substrate and preparation method thereof for making high frequency antenna substrate.
Background technology
Commercialization high frequency printed circuit boards on market based on the high frequency plate of polytetrafluoroethylene (PTFE) base material, this series products excellent electrical property; But cost is very high, and because of fluororesin mechanical property very low, its processing characteristics and the non-constant of dimensional stability.In order to improve the above-mentioned defect of ptfe substrate, be generally adopt glass fibre to carry out modification, but glass-fiber-fabric reinforced TFE material, and with high costs, complex forming technology, density are large, poor mechanical property.
Polypropylene has excellent dielectric properties, and density is little, cheap, but mechanical strength is lower, adopts continuous glass fiber reinforced polypropylene composite material to prepare high frequency wave-penetrating composite material, has very high property cost ratio.But current technique is difficult to solve the homogeneous dispersiveness of continuous glass fibre in acrylic resin and the abundant wettability of resin.
Summary of the invention
The present invention aims to provide a kind of blend fibre cloth, high frequency antenna substrate and preparation method thereof for making high frequency antenna substrate, to solve the problem that in prior art, glass fibre is uneven in resin material.
To achieve these goals, according to an aspect of the present invention, provide a kind of blend fibre cloth for making high frequency antenna substrate, blend fibre cloth is formed by glass fibre and polypropylene fibre blending.
Further, above-mentioned glass fibre is electronic-grade glass, and polypropylene fibre is polypropylene fibre prepared by the spinning of isotactic polypropylene resin.
Further, in above-mentioned blend fibre cloth, the weight percentage of glass fibre is 30 ~ 70%, preferably 40 ~ 60%.
Further, above-mentioned glass fibre is E-glass fibre.
Further, above-mentioned blend fibre cloth is plain.
According to a further aspect in the invention, provide a kind of high frequency antenna substrate, high frequency antenna substrate comprises the first conductive foil, the first tack coat, above-mentioned blend fibre cloth, the second tack coat and the second conductive foil that are disposed adjacent successively.
Further, above-mentioned first tack coat and the second tack coat are polypropylene grafted maleic anhydride film.
Further, in above-mentioned polypropylene grafted maleic anhydride film, the percent grafting of maleic anhydride is 0.5 ~ 2%.
Further, above-mentioned conductive foil is Copper Foil or aluminium foil.
According to a further aspect in the invention, provide a kind of preparation method of above-mentioned high frequency antenna substrate, preparation method comprises: glass fibre and polypropylene fibre blending are made into blend fibre cloth; By stacked successively to the first conductive foil, the first tack coat, blend fibre cloth, the second tack coat and the second conductive foil, form overlapped layers; Overlapped layers is carried out hot pressing, obtains high frequency antenna substrate.
Further, in above-mentioned hot pressing, hot pressing temperature is 180 ~ 220 DEG C; Hot pressing pressure is 5 ~ 15kg, and hot pressing time is 5 ~ 10min.
Apply technical scheme of the present invention, glass fibre and polypropylene fibre are woven into cloth with the form of blending, solve continuous glass-fiber in polypropylene matrix, disperse inequality, acrylic resin, to the poor problem of glass fibre wettability, has prepared high-strength light high frequency wave transparent base material.
Except object described above, feature and advantage, the present invention also has other object, feature and advantage.Below with reference to detailed description of the invention, the present invention is further detailed explanation.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.The present invention is described in detail below in conjunction with embodiment.
In a kind of typical embodiment of the present invention, provide a kind of blend fibre cloth for making high frequency antenna substrate, blend fibre cloth is formed by glass fibre and polypropylene fibre blending.
Glass fibre and polypropylene fibre are woven into cloth with the form of blending, solve continuous glass-fiber in polypropylene matrix, disperse uneven, acrylic resin to the poor problem of glass fibre wettability, prepared high-strength light high frequency wave transparent base material.
One of the present invention preferred embodiment in, above-mentioned glass fibre is electronic-grade glass, and polypropylene fibre is polypropylene fibre prepared by the spinning of isotactic isotactic polypropylene resin.There is above-mentioned fineness and lengths of glass fiber and polypropylene fibre and weave the blend fibre cloth obtained, not only there is better continuity, and there is better TENSILE STRENGTH and impact resistance.
In blend fibre cloth of the present invention, the content of glass fibre and the content of polypropylene fibre can adopt the customary amount preparing composite at present, in order to optimize both blending effects and make obtained blend fibre cloth have good physical property and low-dielectric energy, in preferred blend fibre cloth, the weight percentage of glass fibre is 30 ~ 70%; In preferred blend fibre cloth, the weight percentage of glass fibre is 40 ~ 60% further.
Glass fibre used in the present invention is the long glass fibres that can realize weaving, preferred E-glass fibre, the length of E-glass fibre is longer, and toughness is better, and then the physical property such as the TENSILE STRENGTH of the blend fibre cloth utilizing it to obtain and impact resistance is better.
It can be drillipg, plain etc. that the present invention utilizes glass fibre and polypropylene fibre blending to obtain blend fibre cloth, and the blend fibre cloth of a kind of preferred embodiment of the present invention is plain, easily processes, and toughness and tenacity is better.
In the another kind of typical embodiment of the present invention, provide a kind of high frequency antenna substrate, high frequency antenna substrate comprises the first conductive foil, the first tack coat, above-mentioned blend fibre cloth, the second tack coat and the second conductive foil that are disposed adjacent successively.After glass fibre and polypropylene fibre are made as blend fibre cloth, with conductive foil bond together the high frequency antenna substrate that formed have excellent low-dielectric can and the physical property such as shock-resistant, high strength.
The material of the first tack coat used in the present invention and the second tack coat can adopt and make the conventional binding material of substrate, the present invention preferably adopts polypropylene grafted maleic anhydride film as the first tack coat and the second tack coat, wherein polypropylene grafted horse traction acid anhydrides not only has good adhesive property, and can compatibility between reinforced polypropylene fiber and glass fibre, and then make blend fibre cloth its compactness after bonding to Copper Foil better, and then optimize the physical property such as shock-resistant of substrate.In a kind of preferred embodiment, in further preferred above-mentioned polypropylene grafted maleic anhydride film, the percent grafting of maleic anhydride is 0.5 ~ 2%, the adhesive property of polypropylene grafted maleic anhydride film can be ensured, can not can produce obviously impact to the low-dielectric of substrate again.
In addition, conductive foil used in the present invention is the conductive foil that the present invention commonly uses, and can be that Copper Foil also can for aluminium foil.
In another typical embodiment of the present invention, provide a kind of preparation method of above-mentioned high frequency antenna substrate, this preparation method comprises: glass fibre and polypropylene fibre blending are made into blend fibre cloth; By stacked successively to the first conductive foil, the first tack coat, blend fibre cloth, the second tack coat and the second conductive foil, form overlapped layers; Overlapped layers is carried out hot pressing, obtains high frequency antenna substrate.Glass fibre and polypropylene fibre adopt loom can complete blending and obtain blend fibre cloth, then blend fibre cloth and Copper Foil are carried out stacked, hot pressing, and operating process is simple, is easy to realize suitability for industrialized production.
In the another kind of preferred embodiment of the present invention, in above-mentioned hot pressing, hot pressing temperature is 180 ~ 220 DEG C; Hot pressing pressure is 5 ~ 15kg, and hot pressing time is 5 ~ 10min.Utilize above-mentioned hot pressing condition to carry out hot pressing, pressing effect good between each layer can not only be realized; And, can not damage be produced to the structure of the blend fibre cloth formed, and then ensure that the physical property of formed substrate.
Below with reference to embodiment and comparative example, further illustrate beneficial effect of the present invention.
Embodiment 1
Adopt glass fibre rapier loom that the polypropylene fibre of 362C glass fibre and 150D/30F is carried out blending, obtain the plain weave blend fibre cloth of embodiment 1, wherein the composition of blend fibre cloth is in table 1; By stacked successively to the first Copper Foil, polypropylene grafted maleic anhydride film, above-mentioned plain weave blend fibre cloth, polypropylene grafted maleic anhydride film and the second Copper Foil, form overlapped layers, wherein, in polypropylene grafted maleic anhydride film, the percent grafting of maleic anhydride is 1.5%; Overlapped layers is carried out hot pressing, obtains the high frequency antenna substrate of embodiment 1, wherein hot pressing temperature is 220 DEG C; Hot pressing pressure is 10kg, and hot pressing time is 5min.
Embodiment 2
Adopt glass fibre rapier loom that the polypropylene fibre of 362C glass fibre and 150D/30F is carried out blending, obtain the plain weave blend fibre cloth of embodiment 2, wherein the composition of blend fibre cloth is in table 1; By stacked successively to the first Copper Foil, polypropylene grafted maleic anhydride film, above-mentioned plain weave blend fibre cloth, polypropylene grafted maleic anhydride film and the second Copper Foil, form overlapped layers, wherein, in polypropylene grafted maleic anhydride film, the percent grafting of maleic anhydride is 1.5%; Overlapped layers is carried out hot pressing, obtains the high frequency antenna substrate of embodiment 2, wherein hot pressing temperature is 180 DEG C; Hot pressing pressure is 15kg, and hot pressing time is 10min.
Embodiment 3
Adopt glass fibre rapier loom that the polypropylene fibre of 362C glass fibre and 150D/30F is carried out blending, obtain the plain weave blend fibre cloth of embodiment 3, wherein the composition of blend fibre cloth is in table 1; By stacked successively to the first Copper Foil, polypropylene grafted maleic anhydride film, above-mentioned plain weave blend fibre cloth, polypropylene grafted maleic anhydride film and the second Copper Foil, form overlapped layers, wherein, in polypropylene grafted maleic anhydride film, the percent grafting of maleic anhydride is 1.5%; Overlapped layers is carried out hot pressing, obtains the high frequency antenna substrate of embodiment 3, wherein hot pressing temperature is 200 DEG C; Hot pressing pressure is 10kg, and hot pressing time is 8min.
Embodiment 4
Adopt glass fibre rapier loom that the polypropylene fibre of 362C glass fibre and 150D/30F is carried out blending, obtain the plain weave blend fibre cloth of embodiment 4, wherein the composition of blend fibre cloth is in table 1; By stacked successively to the first Copper Foil, polypropylene grafted maleic anhydride film, above-mentioned plain weave blend fibre cloth, polypropylene grafted maleic anhydride film and the second Copper Foil, form overlapped layers, wherein, in polypropylene grafted maleic anhydride film, the percent grafting of maleic anhydride is 0.5%; Overlapped layers is carried out hot pressing, obtains the high frequency antenna substrate of embodiment 4, wherein hot pressing temperature is 200 DEG C; Hot pressing pressure is 10kg, and hot pressing time is 8min.
Embodiment 5
Adopt glass fibre rapier loom that E-glass fibre and polypropylene fibre are carried out blending, obtain the plain weave blend fibre cloth of embodiment 5, wherein the composition of blend fibre cloth is in table 1; By stacked successively to the first Copper Foil, polypropylene grafted maleic anhydride film, above-mentioned plain weave blend fibre cloth, polypropylene grafted maleic anhydride film and the second Copper Foil, form overlapped layers, wherein, in polypropylene grafted maleic anhydride film, the percent grafting of maleic anhydride is 1.0%; Overlapped layers is carried out hot pressing, obtains the high frequency antenna substrate of embodiment 5, wherein hot pressing temperature is 220 DEG C; Hot pressing pressure is 5kg, and hot pressing time is 12min.
Embodiment 6
Adopt glass fibre rapier loom that E-glass fibre and polypropylene fibre are carried out blending, obtain the plain weave blend fibre cloth of embodiment 6, wherein the composition of blend fibre cloth is in table 1; By stacked successively to the first Copper Foil, polypropylene grafted maleic anhydride film, above-mentioned plain weave blend fibre cloth, polypropylene grafted maleic anhydride film and the second Copper Foil, form overlapped layers, wherein, in polypropylene grafted maleic anhydride film, the percent grafting of maleic anhydride is 0.5%; Overlapped layers is carried out hot pressing, obtains the high frequency antenna substrate of embodiment 6, wherein hot pressing temperature is 200 DEG C; Hot pressing pressure is 10kg, and hot pressing time is 8min.
Comparative example 1
Adopt glass fibre rapier loom that the polypropylene fibre of 362C glass fibre and 150D/30F is carried out blending, obtain the plain weave blend fibre cloth of comparative example 1, wherein the composition of blend fibre cloth is in table 1; By stacked successively to the first Copper Foil, epoxy resin glued membrane, above-mentioned plain weave blend fibre cloth, epoxy resin glued membrane and the second Copper Foil, form overlapped layers, wherein, in polypropylene grafted maleic anhydride film, the percent grafting of maleic anhydride is 1.5%; Overlapped layers is carried out hot pressing, obtains the high frequency antenna substrate of comparative example 1, wherein hot pressing temperature is 200 DEG C; Hot pressing pressure is 10kg, and hot pressing time is 8min.
Comparative example 2
It is 1.5% polypropylene grafted maleic anhydride mixing by the percent grafting of glass fibre, acrylic resin, maleic anhydride, particulate material is obtained by double screw extruder extruding pelletization, then particulate material is extruded to obtain sheet material by single screw extrusion machine, wherein the percent grafting of glass fibre, acrylic resin, maleic anhydride is that the consumption of 1.5% polypropylene grafted maleic anhydride is substantially identical with the consumption of embodiment 3, arranges Copper Foil respectively obtain composite bed in the upper and lower surface of sheet material; Adopt hot press that composite bed is carried out hot pressing, wherein, hot pressing temperature is 250 DEG C, and hot pressing pressure is 15kg/cm
2, obtain the high frequency antenna substrate of comparative example 2.
Test the high frequency antenna substrate of embodiment 1 to 6, comparative example 1 and 2, concrete test event and method of testing are in table 2, and test result is in table 3.
Table 1
| Glass fibre (%) | Polypropylene fibre (%) | |
| Embodiment 1 | 30 | 70 |
| Embodiment 2 | 40 | 60 |
| Embodiment 3 | 50 | 50 |
| Embodiment 4 | 50 | 50 |
| Embodiment 5 | 60 | 40 |
| Embodiment 6 | 70 | 30 |
| Comparative example 1 | 50 | 50 |
| Comparative example 2 | 50 | 50 |
Table 2
| Test event | Method of testing |
| Bending strength | ASTM D790 |
| Bending modulus | ASTM D790 |
| Notched impact strength | ASTM D256 |
| Density | ASTM D792 |
| Heat distortion temperature | ASTM D648 |
| Dielectric constant | IPC-TM-650 |
| Dielectric loss | IPC-TM-650 |
| Peel strength | ASTM D1876 |
Table 3
As can be seen from the Data Comparison of embodiment in table 3 and comparative example, adopt high frequency substrate prepared by the method, dielectric properties are excellent, mechanical strength is high, quality is light, as can be seen from the contrast of the data of embodiment 3 and comparative example 1, the peel strength of embodiment 3 is apparently higher than the peel strength of comparative example 1, illustrate and adopt polypropylene grafted maleic anhydride glued membrane to significantly improve peel strength, as can be seen from the Data Comparison of embodiment 3 and comparative example 2, every data of the performance substrate strength of embodiment 3 are all better than comparative example 2, therefore after illustrating that the present invention adopts glass fibre and polypropylene fibre blending to form blend fibre cloth, polypropylene is mixed with glass fibre.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. for making a blend fibre cloth for high frequency antenna substrate, it is characterized in that, described blend fibre cloth is formed by glass fibre and polypropylene fibre blending.
2. blend fibre cloth according to claim 1, is characterized in that, described glass fibre is electronic-grade glass, and described polypropylene fibre is polypropylene fibre prepared by the spinning of isotactic polypropylene resin.
3. blend fibre cloth according to claim 1 and 2, is characterized in that, in described blend fibre cloth, the weight percentage of glass fibre is 30 ~ 70%, preferably 40 ~ 60%.
4. blend fibre cloth according to claim 3, is characterized in that, described glass fibre is E-glass fibre.
5. blend fibre cloth according to claim 1, is characterized in that, described blend fibre cloth is plain.
6. a high frequency antenna substrate, is characterized in that, described high frequency antenna substrate comprises the first conductive foil, the first tack coat, blend fibre cloth, the second tack coat and the second conductive foil according to any one of claim 1 to 5 that are disposed adjacent successively.
7. high frequency antenna substrate according to claim 6, is characterized in that, described first tack coat and described second tack coat are polypropylene grafted maleic anhydride film.
8. high frequency antenna substrate according to claim 7, is characterized in that, in described polypropylene grafted maleic anhydride film, the percent grafting of maleic anhydride is 0.5 ~ 2%.
9. the high frequency antenna substrate according to any one of claim 6 to 8, is characterized in that, described conductive foil is Copper Foil or aluminium foil.
10. a preparation method for the high frequency antenna substrate according to any one of claim 6 to 9, is characterized in that, described preparation method comprises:
Glass fibre and polypropylene fibre blending are made into blend fibre cloth;
By stacked successively to the first conductive foil, the first tack coat, described blend fibre cloth, the second tack coat and the second conductive foil, form overlapped layers;
Described overlapped layers is carried out hot pressing, obtains described high frequency antenna substrate.
11. preparation methods according to claim 10, is characterized in that, in described hot pressing, hot pressing temperature is 180 ~ 220 DEG C; Hot pressing pressure is 5 ~ 15kg, and hot pressing time is 5 ~ 10min.
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| CN201310617897.8A CN104674423B (en) | 2013-11-27 | 2013-11-27 | Blending fiber cloth, high frequency antenna substrate and manufacturing method thereof |
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| JPH08323924A (en) * | 1995-05-30 | 1996-12-10 | Mitsubishi Plastics Ind Ltd | Unit panel made of fiber reinforced resin |
| US20060275594A1 (en) * | 2005-03-04 | 2006-12-07 | Wick Robert J | Long fiber-reinforced thermoplastic compositions, articles made therefrom and methods of making the same |
| CN101752658A (en) * | 2008-12-05 | 2010-06-23 | 深圳富泰宏精密工业有限公司 | Antenna assembly, method for manufacturing antenna assembly and shell integrated with antenna assembly |
| CN102303430A (en) * | 2011-06-14 | 2012-01-04 | 宁波市阳光汽车配件有限公司 | Method for preparing glass fiber and reinforced polypropylene fiber composite material |
| CN202405420U (en) * | 2011-12-29 | 2012-08-29 | 深圳市振华微电子有限公司 | Small-sized circular polarization antenna |
| CN103094657A (en) * | 2011-10-31 | 2013-05-08 | 深圳光启高等理工研究院 | Dielectric substrate and antenna with the same |
| CN203039091U (en) * | 2013-01-16 | 2013-07-03 | 昆山骅盛电子有限公司 | Plate type antenna structure |
| CN103397429A (en) * | 2013-07-30 | 2013-11-20 | 叶晓华 | Blended fabric for thermoplastic fiber reinforced composite materials and preparing method of blended fabric |
-
2013
- 2013-11-27 CN CN201310617897.8A patent/CN104674423B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08323924A (en) * | 1995-05-30 | 1996-12-10 | Mitsubishi Plastics Ind Ltd | Unit panel made of fiber reinforced resin |
| US20060275594A1 (en) * | 2005-03-04 | 2006-12-07 | Wick Robert J | Long fiber-reinforced thermoplastic compositions, articles made therefrom and methods of making the same |
| CN101752658A (en) * | 2008-12-05 | 2010-06-23 | 深圳富泰宏精密工业有限公司 | Antenna assembly, method for manufacturing antenna assembly and shell integrated with antenna assembly |
| CN102303430A (en) * | 2011-06-14 | 2012-01-04 | 宁波市阳光汽车配件有限公司 | Method for preparing glass fiber and reinforced polypropylene fiber composite material |
| CN103094657A (en) * | 2011-10-31 | 2013-05-08 | 深圳光启高等理工研究院 | Dielectric substrate and antenna with the same |
| CN202405420U (en) * | 2011-12-29 | 2012-08-29 | 深圳市振华微电子有限公司 | Small-sized circular polarization antenna |
| CN203039091U (en) * | 2013-01-16 | 2013-07-03 | 昆山骅盛电子有限公司 | Plate type antenna structure |
| CN103397429A (en) * | 2013-07-30 | 2013-11-20 | 叶晓华 | Blended fabric for thermoplastic fiber reinforced composite materials and preparing method of blended fabric |
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Effective date of registration: 20210415 Address after: 2 / F, software building, No.9, Gaoxin Zhongyi Road, Nanshan District, Shenzhen City, Guangdong Province Patentee after: KUANG-CHI INSTITUTE OF ADVANCED TECHNOLOGY Address before: 18B, building a, CIC international business center, 1061 Xiangmei Road, Futian District, Shenzhen, Guangdong 518034 Patentee before: KUANG-CHI INNOVATIVE TECHNOLOGY Ltd. |