CN109825013A - A kind of method for mixing of ceramics enhancing PTFE based composite dielectric plate slurry - Google Patents
A kind of method for mixing of ceramics enhancing PTFE based composite dielectric plate slurry Download PDFInfo
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- CN109825013A CN109825013A CN201910192634.4A CN201910192634A CN109825013A CN 109825013 A CN109825013 A CN 109825013A CN 201910192634 A CN201910192634 A CN 201910192634A CN 109825013 A CN109825013 A CN 109825013A
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- based composite
- dielectric plate
- mixing
- composite dielectric
- slurry
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- 239000002002 slurry Substances 0.000 title claims abstract description 77
- 229920001343 polytetrafluoroethylene Polymers 0.000 title claims abstract description 63
- 239000004810 polytetrafluoroethylene Substances 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 47
- 238000002156 mixing Methods 0.000 title claims abstract description 46
- 239000000919 ceramic Substances 0.000 title claims abstract description 44
- 239000002131 composite material Substances 0.000 title claims abstract description 43
- 230000002708 enhancing effect Effects 0.000 title claims abstract description 33
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052681 coesite Inorganic materials 0.000 claims abstract description 20
- 229910052906 cristobalite Inorganic materials 0.000 claims abstract description 20
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 20
- 229910052682 stishovite Inorganic materials 0.000 claims abstract description 20
- 229910052905 tridymite Inorganic materials 0.000 claims abstract description 20
- 239000000839 emulsion Substances 0.000 claims abstract description 15
- 238000001125 extrusion Methods 0.000 abstract description 3
- 239000002245 particle Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 238000000227 grinding Methods 0.000 description 4
- 238000007613 slurry method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000010348 incorporation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 230000001568 sexual effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012776 electronic material Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000006210 lotion Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000012763 reinforcing filler Substances 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical compound FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
Abstract
The present invention provides a kind of method for mixing of ceramics enhancing PTFE based composite dielectric plate slurry, belong to composite board technical field.The present invention is first by SiO2It is mixed with ptfe emulsion, obtains premixed slurries, reused triple-roller mill and premixed slurries are ground, obtain ceramics enhancing PTFE based composite dielectric plate slurry.The present invention grinds premixed slurries using the mutual extrusion of triple-roller mill roller surface, can make SiO2Aggregate collides with each other, to reduce the size of particle cluster, so that ceramics enhancing PTFE based composite dielectric plate slurry is with good stability and uniformity, extends the holding time of slurry.Meanwhile method for mixing provided by the invention is simple and easy to do, it is easy to accomplish industrialized production.Embodiment the result shows that, compared to direct method for mixing, the stability and uniformity of ceramics enhancing PTFE based composite dielectric plate slurry are obviously improved method for mixing provided by the invention.
Description
Technical field
The present invention relates to composite board technical field, in particular to a kind of ceramics enhancing PTFE based composite dielectric plate slurry
Method for mixing.
Background technique
Complex media plate is important one of the basic material of modern electronic equipment.PTFE (polytetrafluoroethylene (PTFE)) based composite dielectric
Plate have low-k and dielectric loss, in electronic material using more and more extensive.It is most heavy during PTFE is filling-modified
The reinforcing material wanted includes that ceramics and glass fibre, the complex media plate material being mixed with by different proportion can satisfy not
Same application demand.
When preparing PTFE based composite dielectric plate, needs first to mix ceramic reinforcing filler with ptfe emulsion and be slurried
Material, reusing the techniques such as pre-burning, hot pressing makes complex media sheet metal forming.However, since polytetrafluoroethylene (PTFE) molecule has height close
The helicoidal structure of arrangement, externally shows electroneutral, and oleophyllie hydrophobic is difficult the SiO with hydrophilic and oleophobic2It is compatible, while SiO2Poly-
It is easy to reunite in tetrafluoroethene lotion.Therefore, by SiO2The method that powder and PTFE slurry directly mix does not ensure that ceramics
Enhance the stability and uniformity of PTFE based composite dielectric plate slurry, complex media plate performance after molding cannot ensure.
Summary of the invention
In view of this, it is an object of that present invention to provide a kind of mixing sides of ceramics enhancing PTFE based composite dielectric plate slurry
Method.Using ceramics enhancing PTFE based composite dielectric plate slurry is uniform obtained by method for mixing provided by the invention, stablizes, the holding time
It is long.
In order to achieve the above-mentioned object of the invention, the present invention the following technical schemes are provided:
A kind of method for mixing of ceramics enhancing PTFE based composite dielectric plate slurry, comprising the following steps:
(1) by SiO2It is mixed with ptfe emulsion, obtains premixed slurries；
(2) premixed slurries are ground using triple-roller mill, obtains ceramics enhancing PTFE based composite dielectric plate slurry
Material.
Preferably, SiO in the step (1)2Partial size be 1~10 μm.
Preferably, the solid content of ptfe emulsion is 50~80% in the step (1).
Preferably, SiO in the premixed slurries of the step (1)2Mass content be 10~80%.
Preferably, the time mixed in the step (1) is 10~15min.
Preferably, the triple-roller mill in the step (2) includes preliminary roller, central roll and back roller；The preliminary roller of the triple-roller mill is in
The gap of roller contact, central roll and back roller is 0.1~2mm.
Preferably, the rotating ratio of the preliminary roller, central roll and back roller is (9~16): (3~4): 1, the revolving speed of the central roll is
75~95r/min.
Preferably, the time ground in the step (2) is 0.5~4h.
The present invention provides a kind of method for mixing of ceramics enhancing PTFE based composite dielectric plate slurry, and the present invention is first by SiO2
It is mixed with ptfe emulsion, obtains premixed slurries, reused triple-roller mill and premixed slurries are ground, obtain ceramics
Enhance PTFE based composite dielectric plate slurry.The present invention grinds premixed slurries using the mutual extrusion of triple-roller mill roller surface
Mill, can make SiO2Aggregate collides with each other, so that the size of particle cluster is reduced, so that ceramics enhancing compound Jie of PTFE base
Scutum slurry is with good stability and uniformity, extends the holding time of slurry.Meanwhile method for mixing provided by the invention
It is simple and easy to do, it is easy to accomplish industrialized production.Embodiment the result shows that, method for mixing provided by the invention is compared to direct mixing
Method, the stability and uniformity of ceramics enhancing PTFE based composite dielectric plate slurry are obviously improved.
Detailed description of the invention
Fig. 1 is that 1 method for mixing of the embodiment of the present invention and 1 method for mixing confonnality deviations value of comparative example change over time signal
Figure；
Fig. 2 is that 2 method for mixing of the embodiment of the present invention and 2 method for mixing confonnality deviations value of comparative example change over time signal
Figure.
Specific embodiment
The present invention provides a kind of method for mixing of ceramics enhancing PTFE based composite dielectric plate slurry, comprising the following steps:
(1) by SiO2It is mixed with ptfe emulsion, obtains premixed slurries；
(2) premixed slurries are ground using triple-roller mill, obtains ceramics enhancing PTFE based composite dielectric plate slurry
Material.
The present invention is by SiO2It is mixed with ptfe emulsion, obtains premixed slurries.In the present invention, the SiO2Make
For ceramic powder use；The SiO2Partial size be preferably 1~10 μm, more preferably 4~8 μm；The ptfe emulsion
Solid content be preferably 50%~80%, more preferably 55%~65%；In the present invention, SiO in the premixed slurries2's
Mass content is 10~80%, more preferably 50~70%.In the present invention, the mixed time is preferably 10~15min,
More preferably 12~15min.Present invention preferably uses the modes of stirring by SiO2It is mixed with ptfe emulsion, the present invention couple
The rate of stirring does not have special requirement, and grainless in premixed slurries can be made to agglomerate.
After obtaining premixed slurries, the present invention grinds the premixed slurries using triple-roller mill, obtains ceramic increasing
Strong PTFE based composite dielectric plate slurry.In the present invention, the triple-roller mill preferably includes preliminary roller, central roll and back roller；The present invention couple
Brand, model and the material of the triple-roller mill do not have special requirement, use triple-roller mill commonly used in the art.At this
In invention, the preliminary roller of the triple-roller mill is contacted with central roll but is not squeezed, and the slurry is added between central roll and back roller and is ground
Mill.In the present invention, the gap of the central roll and back roller is preferably 0.1~2mm, more preferably 0.8~1.5mm；The preliminary roller,
Central roll and the rotating ratio of back roller are preferably (9~16): (3~4): 1, more preferably 9:3:1；The revolving speed of the central roll is preferably 75
~95r/min, more preferably 80~90r/min.In the present invention, the milling time is preferably 0.5~4h, and more preferably 2
~3h.The present invention is by grinding so that ceramic partial size and being evenly distributed in the slurry are consistent.The present invention by preliminary roller, central roll and
The friction of the surface mutual extrusion and friction speed of back roller reaches the grinding effect to material, can make SiO2Aggregate is mutually collided
It hits, so that the size of particle cluster is reduced, so that ceramics enhancing PTFE based composite dielectric plate slurry is with good stability
And uniformity, extend the holding time of slurry.
Ceramics enhancing PTFE based composite dielectric plate slurry of the present invention preferably it is clean it is dustless, bright light, avoid sun
Standing preservation is carried out under conditions of light direct beam, and the offscum in removal slurry in time is needed when standing；In the present invention, described quiet
The temperature set preferably≤25 DEG C.
Below with reference to embodiment to it is provided by the invention ceramics enhancing PTFE based composite dielectric plate slurry method for mixing into
Row detailed description, but they cannot be interpreted as limiting the scope of the present invention.
Embodiment 1
Taking partial size is 1 μm of SiO2With ptfe emulsion according to SiO2The ratio that mass content is 50% is mixed,
Premixed slurries are obtained, wherein incorporation time is 10min；2h is ground to gained premixed slurries using triple-roller mill, obtains ceramics
Enhance PTFE based composite dielectric plate slurry, wherein the gap of central roll and back roller is 0.1mm, and the revolving speed of central roll is 75r/min, preceding
The rotating ratio of roller, central roll and back roller is 9:3:1.
The equal of PTFE based composite dielectric plate slurry is enhanced to 0h, 4h, 8h, ceramics for 24 hours are stood respectively using sedimentation experiment
Even property is characterized, take respectively slurry level be 3cm, 6cm, 9cm, 12cm, 15cm, 18cm, 21cm, 24cm, 27cm,
The slurry of 30cm carries out measuring and calculation confonnality deviations value σ.
The holding time of this ceramics enhancing PTFE based composite dielectric plate slurry is tested, through detecting, this ceramics enhancing
PTFE based composite dielectric plate slurry, which can be reserved for 3 days, does not occur denaturalization phenomenon.
Comparative example 1
Partial size is directly 1 μm of SiO by the step of omitting triple-roller mill grinding2With ptfe emulsion according to SiO2Quality contains
Amount mixes 10min for 50% ratio, obtains ceramics enhancing PTFE based composite dielectric plate slurry.Using the method in embodiment 1
Calculate the confonnality deviations value σ of slurry obtained by direct mixing method.
Wherein 1 method for mixing of embodiment and the direct mixing method confonnality deviations value of comparative example 1 change over time schematic diagram such as
Shown in Fig. 1.
As shown in Figure 1, the ceramics enhancing PTFE based composite dielectric plate slurry obtained using method for mixing of the present invention is being stood
Confonnality deviations value is significantly lower than the slurry that direct mixing method obtains after 10h；After standing 20h, obtained using method for mixing of the present invention
The ceramics enhancing PTFE based composite dielectric plate slurry uniformity deviation arrived is 10.5%, and the slurry that direct mixing method obtains is equal
Even sexual deviation value is 11.3%, and therefore, compared to direct mixing method, method for mixing provided by the invention is able to ascend ceramic enhancing
The stability and uniformity of PTFE based composite dielectric plate slurry.
Embodiment 2
Taking partial size is 10 μm of SiO2With ptfe emulsion according to SiO2The ratio that mass content is 50% is mixed
It closes, obtains premixed slurries, wherein incorporation time is 10min；Gained premixed slurries are ground using triple-roller mill, obtain ceramics
Enhance PTFE based composite dielectric plate slurry, wherein the gap of central roll and back roller is 2mm, and the revolving speed of central roll is 95r/min, preliminary roller,
Central roll and the rotating ratio of back roller are 9:3:1.
The equal of PTFE based composite dielectric plate slurry is enhanced to 0h, 4h, 8h, ceramics for 24 hours are stood respectively using sedimentation experiment
Even property is characterized, take respectively slurry level be 3cm, 6cm, 9cm, 12cm, 15cm, 18cm, 21cm, 24cm, 27cm,
The slurry of 30cm carries out measuring and calculation confonnality deviations value σ.
The holding time of this ceramics enhancing PTFE based composite dielectric plate slurry is tested, through detecting, this ceramics enhancing
PTFE based composite dielectric plate slurry, which can be reserved for 3 days, does not occur denaturalization phenomenon.
Comparative example 2
Partial size is directly 10 μm of SiO by the step of omitting triple-roller mill grinding2With ptfe emulsion according to SiO2Quality
The ratio that content is 50% mixes 10min, obtains ceramics enhancing PTFE based composite dielectric plate slurry.Using identical with embodiment 2
Mode calculate the confonnality deviations value σ of slurry obtained by direct mixing method.
Wherein 2 method for mixing of embodiment and the direct mixing method confonnality deviations value of comparative example 2 change over time schematic diagram such as
Shown in Fig. 2.
As shown in Figure 2, the ceramics enhancing PTFE based composite dielectric plate slurry obtained using method for mixing of the present invention is being stood
Confonnality deviations value is significantly lower than the slurry that direct mixing method obtains after 10h；After standing 20h, obtained using method for mixing of the present invention
The ceramics enhancing PTFE based composite dielectric plate slurry uniformity deviation arrived is 12.8%, and the slurry that direct mixing method obtains is equal
Even sexual deviation value is 18.0%, and therefore, compared to direct mixing method, method for mixing provided by the invention is able to ascend ceramic enhancing
The stability and uniformity of PTFE based composite dielectric plate slurry.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (8)
1. a kind of method for mixing of ceramics enhancing PTFE based composite dielectric plate slurry, comprising the following steps:
(1) by SiO2It is mixed with ptfe emulsion, obtains premixed slurries；
(2) premixed slurries are ground using triple-roller mill, obtains ceramics enhancing PTFE based composite dielectric plate slurry.
2. method for mixing according to claim 1, which is characterized in that SiO in the step (1)2Partial size be 1~10 μm.
3. method for mixing according to claim 1, which is characterized in that ptfe emulsion consolidates in the step (1)
Content is 50~80%.
4. method for mixing according to claim 1, which is characterized in that SiO in the premixed slurries of the step (1)2Matter
Measuring content is 10~80%.
5. method for mixing according to claim 1, which is characterized in that the time mixed in the step (1) is 10~
15min。
6. method for mixing according to claim 1, which is characterized in that the triple-roller mill in the step (2) include preliminary roller, in
Roller and back roller；The preliminary roller of the triple-roller mill is contacted with central roll, and the gap of central roll and back roller is 0.1~2mm.
7. method for mixing according to claim 6, which is characterized in that the rotating ratio of the preliminary roller, central roll and back roller is (9
~16): (3~4): 1, the revolving speed of the central roll is 75~95r/min.
8. method for mixing according to claim 1, which is characterized in that the time ground in the step (2) is 0.5~
4h。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910192634.4A CN109825013B (en) | 2019-03-14 | 2019-03-14 | Mixing method of ceramic reinforced PTFE (polytetrafluoroethylene) -based composite dielectric plate slurry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910192634.4A CN109825013B (en) | 2019-03-14 | 2019-03-14 | Mixing method of ceramic reinforced PTFE (polytetrafluoroethylene) -based composite dielectric plate slurry |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109825013A true CN109825013A (en) | 2019-05-31 |
| CN109825013B CN109825013B (en) | 2020-08-21 |
Family
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|---|---|---|---|
| CN201910192634.4A Active CN109825013B (en) | 2019-03-14 | 2019-03-14 | Mixing method of ceramic reinforced PTFE (polytetrafluoroethylene) -based composite dielectric plate slurry |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102952359A (en) * | 2011-08-31 | 2013-03-06 | 深圳光启高等理工研究院 | Metamaterial dielectric substrate material and processing method thereof |
| CN106782884A (en) * | 2016-12-19 | 2017-05-31 | 东莞珂洛赫慕电子材料科技有限公司 | A kind of preparation method of nano-powder base electric slurry |
| CN107474312A (en) * | 2017-06-12 | 2017-12-15 | 电子科技大学 | The preparation method of ceramic filled polytetrafluoroethylglass microwave composite medium substrate |
-
2019
- 2019-03-14 CN CN201910192634.4A patent/CN109825013B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102952359A (en) * | 2011-08-31 | 2013-03-06 | 深圳光启高等理工研究院 | Metamaterial dielectric substrate material and processing method thereof |
| CN106782884A (en) * | 2016-12-19 | 2017-05-31 | 东莞珂洛赫慕电子材料科技有限公司 | A kind of preparation method of nano-powder base electric slurry |
| CN107474312A (en) * | 2017-06-12 | 2017-12-15 | 电子科技大学 | The preparation method of ceramic filled polytetrafluoroethylglass microwave composite medium substrate |
Non-Patent Citations (2)
| Title |
|---|
| 于丁丁: ""SiO2/GF填充PTFE基复合介质板性能调节及制备工艺研究"", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
| 王立久等主编: "《新型屋面材料》", 31 October 2012, 中国建材工业出版社 * |
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Effective date of registration: 20240223 Address after: 572024 Building 9, UFIDA Industrial Park, yazhouwan science and Technology City, Yazhou District, Sanya City, Hainan Province Patentee after: Sanya science and Education Innovation Park Wuhan University of Technology Country or region after: China Address before: No. 122, Lo lion Road, Hongshan District, Wuhan, Hubei Patentee before: WUHAN University OF TECHNOLOGY Country or region before: China |