CN113764055B - Parameter processing method and device based on LCP film preparation raw material - Google Patents
Parameter processing method and device based on LCP film preparation raw material Download PDFInfo
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Abstract
The application discloses LCP film preparation raw materials influence evaluation method and device to technology, and the method comprises the following steps: acquiring the liquidity of LCP liquid formed by melting LCP particles at a preset temperature; judging the fluidity and comparing the fluidity with a preset standard fluidity; if the liquidity of the LCP liquid falls within the range value, acquiring production parameters corresponding to the standard liquidity; adjusting the predetermined temperature of the step of melting the LCP particles into the LCP liquid if the flowability of the LCP liquid does not fall within the range value; the adjusted LCP liquid fluidity is measured and readjusted until the LCP liquid fluidity falls within the range of values. The problem that the LCP film production process among the prior art relies on the manual work to adjust production parameter according to the LCP particle of difference and leads to is solved through this application, uses software to carry out the processing of temperature parameter to make the LCP liquid reach the production requirement, thereby improved the quality of LCP film.
Description
Technical Field
The application relates to the field of LCP preparation, in particular to a parameter processing method and device based on LCP film preparation raw materials.
Background
The Liquid-Crystal Polymer (LCP) Polymer material has very low dielectric constant and dielectric loss factor, and has the characteristics of low moisture absorption, good chemical resistance, high gas barrier property and the like, so that the LCP Polymer material becomes the most important basic material for producing the copper-clad plate in the 5G era.
In the prior art, an extrusion casting method can be used for preparing the LCP film, and the method comprises the steps of heating, melting and plasticizing LCP particles by an extruder, extruding the LCP particles through a T-shaped structure forming die, casting the LCP particles onto a cooling roller, cooling and shaping the LCP particles, and then drawing, trimming and rolling the LCP particles to finally obtain an LCP film product.
The inventor finds that in the process, LCP particles produced by different manufacturers have different properties, and even LCP particles in different batches in the sound field of the same manufacturer have different properties, wherein the melt flowability of the LCP particles has a large influence on the film manufacturing, and corresponding production parameters need to be adjusted according to different LCP particles. Currently, the adjustment is performed by the manufacturer according to experience, which results in inconsistent quality of the produced LCP film.
Disclosure of Invention
The embodiment of the application provides a parameter processing method and device based on LCP film preparation raw materials, which at least solve the problem caused by manually adjusting production parameters according to different LCP particles in the LCP film production process in the prior art.
According to one aspect of the present application, there is provided a parameter processing method for raw material based LCP film preparation, comprising: obtaining the fluidity of an LCP liquid into which LCP particles are melted at a predetermined temperature, wherein the fluidity is based on the dynamic viscosity of the LCP liquid and the density of the LCP liquid; judging the flowability to be compared with a preset standard flowability, wherein the standard flowability is a range value; if the liquidity of the LCP liquid falls within the range value, acquiring a production parameter corresponding to the standard liquidity; adjusting the predetermined temperature of the step of melting the LCP particles into the LCP liquid if the flowability of the LCP liquid does not fall within the range of values; the adjusted LCP liquid fluidity is measured and readjusted until the LCP liquid fluidity falls within the range of values.
Further, after obtaining the production parameter corresponding to the standard flowability, the method further includes: and sending the production parameters to a production device for producing the LCP film for production, wherein the production device for producing the LCP film uses extrusion casting for production.
Further, if the flowability of the LCP liquid does not fall within the range of values, adjusting the predetermined temperature of the step of melting the LCP particles into the LCP liquid comprises: in case the LCP liquid has a mobility less than the minimum of the range values, the predetermined temperature is increased.
Further, if the fluidity of the LCP liquid does not fall within the range of values, adjusting the predetermined temperature of the step of melting the LCP particles into the LCP liquid comprises: in case the LCP liquid has a mobility greater than the maximum of the range values, the predetermined temperature is lowered.
Further, adjusting the predetermined temperature of the step of melting the LCP particles into the LCP liquid, and measuring and readjusting the fluidity of the adjusted LCP liquid comprises: increasing or decreasing the predetermined temperature by a predetermined percentage each time, and measuring the flowability of the LCP liquid after each increase or decrease of the predetermined percentage.
According to another aspect of the present application, there is provided a parameter processing device based on raw material for LCP film preparation, comprising: a first acquiring module, configured to acquire fluidity of an LCP liquid into which LCP particles are melted at a predetermined temperature, wherein the fluidity is based on dynamic viscosity of the LCP liquid and density of the LCP liquid; the judging module is used for judging that the flowability is compared with a preset standard flowability, wherein the standard flowability is a range value; a second obtaining module, configured to obtain a production parameter corresponding to the standard flowability if the flowability of the LCP liquid falls within the range value; an adjustment module for adjusting the predetermined temperature of the step of melting the LCP particles into the LCP liquid if the flowability of the LCP liquid does not fall within the range of values; and the measuring module is used for measuring and readjusting the adjusted liquidity of the LCP liquid until the liquidity of the LCP liquid falls into the range value.
Further, still include: and the sending module is used for sending the production parameters to production equipment for producing the LCP film for production, wherein the production equipment for producing the LCP film is produced by using extrusion casting.
Further, the adjustment module is configured to: in case the LCP liquid has a mobility less than the minimum of the range values, the predetermined temperature is increased.
Further, the adjustment module is configured to: in case the LCP liquid has a mobility greater than the maximum of the range values, the predetermined temperature is lowered.
Further, the adjusting module is configured to increase or decrease the predetermined temperature by a predetermined percentage each time; the measuring module is configured to measure the flowability of the LCP liquid after each increase or decrease of the predetermined percentage.
In the embodiment of the application, obtaining the fluidity of LCP liquid formed by melting LCP particles at a preset temperature is adopted, wherein the fluidity is determined according to the dynamic viscosity of the LCP liquid and the density of the LCP liquid; judging the flowability to be compared with a preset standard flowability, wherein the standard flowability is a range value; if the liquidity of the LCP liquid falls within the range value, acquiring a production parameter corresponding to the standard liquidity; adjusting the predetermined temperature of the step of melting the LCP particles into the LCP liquid if the flowability of the LCP liquid does not fall within the range of values; the adjusted LCP liquid fluidity is measured and readjusted until the LCP liquid fluidity falls within the range of values. The problem that the LCP film production process among the prior art relies on the manual work to adjust production parameter according to the LCP particle of difference and leads to is solved through this application, uses software to carry out the processing of temperature parameter to make the LCP liquid reach the production requirement, thereby improved the quality of LCP film.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application. In the drawings:
FIG. 1 is a flow chart of a parametric processing method based on LCP film preparation feedstock according to an embodiment of the present application.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
It should be noted that the steps illustrated in the flowcharts of the figures may be performed in a computer system such as a set of computer-executable instructions and that, although a logical order is illustrated in the flowcharts, in some cases, the steps illustrated or described may be performed in an order different than presented herein.
In the present embodiment, a method for processing parameters of raw material for LCP film preparation is provided, and fig. 1 is a flowchart of a method for processing parameters of raw material for LCP film preparation according to an embodiment of the present application, as shown in fig. 1, the flowchart includes the following steps:
step S102, acquiring the fluidity of LCP liquid formed by melting LCP particles at a preset temperature, wherein the fluidity is determined according to the dynamic viscosity of the LCP liquid and the density of the LCP liquid;
the LCP particles can be prepared from the following raw materials in parts by weight: 80-120 parts of functional liquid crystal polymer, 12-20 parts of conductive particles, 15-20 parts of vinyl ester resin, 50-60 parts of polyethylene glycol, 30-40 parts of methyl silicone rubber, 2-5 parts of dioctyl phthalate, 1-3 parts of graphene, 1.2-1.6 parts of p-phenylenediamine, 0.6-0.9 part of antimony trioxide and 4-7 parts of gamma-aminopropyltriethoxysilane.
Step S104, judging that the fluidity is compared with the preset standard fluidity, wherein the standard fluidity is a range value;
step S106, if the liquidity of the LCP liquid falls within the range value, obtaining production parameters corresponding to the standard liquidity;
optionally, after acquiring the production parameters, the production parameters can be sent to a production device for producing LCP films, wherein the production device for producing LCP films produces the LCP films by using extrusion casting. The default production parameter of the production equipment can be configured as the production parameter corresponding to the range value, and if the production equipment does not receive the production parameter, the production equipment uses the default production parameter for production.
In an embodiment that may be added, the range value of the criterion may be divided into a plurality of parts, and in the case where the flowability of the LCP fluid falls within the range value, a predetermined part of the plurality of parts into which the flowability of the LCP fluid falls is acquired, production parameters corresponding to the predetermined part are acquired, and the production parameters corresponding to the predetermined part are sent to the production apparatus.
Step S108, if the fluidity of the LCP liquid does not fall within the range value, adjusting the predetermined temperature of the step of melting the LCP particles into the LCP liquid;
alternatively, the predetermined temperature may be adjusted if it does not fall within the range of values. For example, in the case where the LCP liquid has a mobility less than the minimum of the range values, the predetermined temperature is increased; alternatively, in the case where the LCP liquid has a mobility greater than the maximum of the range values, the predetermined temperature is lowered. The increase or decrease may be performed according to a predetermined law, for example, each time the predetermined temperature is increased or decreased by a predetermined percentage (e.g., 5% to 10%), and the flowability of the LCP liquid is measured after each increase or decrease of the predetermined percentage.
Step S110, the adjusted liquidity of the LCP liquid is measured and readjusted until the liquidity of the LCP liquid falls within the range value.
Through the steps, the problem caused by the fact that production parameters are adjusted manually according to different LCP particles in the LCP film production process in the prior art is solved, and the temperature parameters are processed by software, so that LCP liquid meets the production requirements, and the quality of the LCP film is improved.
The above steps are easy to produce in many ways, for example, the LCP particles can be melted to obtain an LCP melt (i.e. LCP liquid); inputting the LCP liquid into a die, wherein the die comprises an inner sphere and an outer sphere, a space is arranged between the inner sphere and the outer sphere, the outer sphere is composed of a first hemisphere and a second hemisphere, the first hemisphere is provided with an inlet, the LCP container flows into the space formed by the inner sphere and the outer sphere through the inlet, and the second hemisphere is provided with an outlet; controlling the inner sphere and the outer sphere to rotate, enabling the LCP liquid to flow out of the outlet onto the carrier, and cooling to obtain the LCP film.
Optionally, the inner sphere is a hollow sphere, and a plurality of holes are arranged on the inner sphere, and the LCP liquid enters and exits from the inner sphere through the plurality of holes. The LCP liquid that interior spheroid on the one hand can drive between being located outer spheroid and the interior spheroid in this optional embodiment rotates, can also drive the inside LCP container of interior spheroid and rotate. Optionally, the inner sphere is a hollow sphere formed by sealing two hemispheroids, a driving device and a power supply are arranged in the hollow sphere, the power supply supplies power to the driving device, and the driving device drives the inner sphere to rotate. The inner ball body is arranged in the preset space, and the inner ball body is arranged in the preset space.
The die head is connected with an extruder, the extruder is used for extruding the LCP liquid into the die head, the diameter of the extruder is 75mm, and the extrusion amount is as follows: 120 kg/hr, support carrier type: aluminum foil/copper foil, thickness of support carrier: 20 to 80 mu m.
In an optionally increasing embodiment, in case the flowability of the LCP liquid after adjusting the predetermined temperature still cannot be adjusted within the range value, in case the flowability is smaller than the minimum of the range value, talc is added to the LCP liquid until the flowability falls within the range value.
In an optionally added embodiment, in the case where the fluidity of the LCP liquid cannot be adjusted within the range of values after the predetermined temperature is adjusted (or after the talc is added), the extrusion amount of the L-extruder is adjusted according to the adjusted fluidity of the LCP liquid. Wherein the extrusion amount is decreased if the fluidity is less than the minimum value of the range, and the extrusion amount is increased if the fluidity is greater than the maximum value of the range. Wherein, the extrusion amount corresponding to the flow of the LCP liquid is preset.
And acquiring the thickness of the LCP film produced after the extrusion amount is adjusted, and if the thickness does not meet the requirement, sending alarm information, wherein the alarm information is used for indicating that the LCP particles are unqualified.
There are many ways to measure the thickness of LCP films. For example, an LCP film to be measured is disposed on a substrate, and the LCP film is irradiated with light from a light source until the evaporation of the LCP film is finished; receiving reflected light of the LCP film in a regular reflection direction by a light receiving element, acquiring a reflected light intensity signal which is a timing signal of a signal intensity of the reflected light until evaporation of the LCP film is finished, the reflected light intensity signal indicating a change in the signal intensity, and saving the acquired reflected light intensity signal in a storage device; estimating a signal intensity of reflected light obtained by irradiating the LCP film with light from the light source based on the spectroscopic intensity of the light source, the spectroscopic sensitivity of the light receiving element, and the optical constant of the LCP film, and acquiring an estimation signal indicating a change in an estimation value of the signal intensity of the reflected light with a change in the film thickness of the LCP film; specifying a time range in which a desired time point exists based on the number of peaks in a signal waveform of a reflected light intensity signal from a base point which is a time point at which evaporation of the LCP film ends to the desired time point; coordinating the signal waveform of the estimation signal and the signal waveform of the reflected light intensity signal with each other such that a time point in the signal waveform of the estimation signal when the film thickness is equal to zero and a base point in the signal waveform of the reflected light intensity signal coincide with each other, and specifying a film thickness range corresponding to the time range in the signal waveform of the estimation signal based on the number of peaks in the signal waveform of the estimation signal; and acquiring the signal intensity of the reflected light at the desired time point, and setting the film thickness corresponding to the estimated value of the signal intensity of the reflected light corresponding to the film thickness falling within the film thickness range and coinciding with the signal intensity of the reflected light at the desired time point as the film thickness of the LCP thin film at the desired time point.
In this embodiment, an electronic device is provided, comprising a memory in which a computer program is stored and a processor configured to run the computer program to perform the method in the above embodiments.
The programs described above may be run on a processor or may also be stored in memory (or referred to as computer-readable media), which includes both non-transitory and non-transitory, removable and non-removable media, that implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
These computer programs may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks, and corresponding steps may be implemented by different modules.
This embodiment provides a device or system, referred to as a parameter processing device based on raw material for LCP film preparation, comprising: a first acquiring module, configured to acquire fluidity of LCP liquid melted by LCP particles at a predetermined temperature, wherein the fluidity is based on the dynamic viscosity of the LCP liquid and the density of the LCP liquid; the judging module is used for judging that the flowability is compared with a preset standard flowability, wherein the standard flowability is a range value; the second acquisition module is used for acquiring the production parameter corresponding to the standard liquidity if the liquidity of the LCP liquid falls within the range value; an adjustment module for adjusting the predetermined temperature of the step of melting the LCP particles into the LCP liquid if the flowability of the LCP liquid does not fall within the range of values; and the measuring module is used for measuring and readjusting the adjusted liquidity of the LCP liquid until the liquidity of the LCP liquid falls into the range value.
For example, the apparatus may further include: and the sending module is used for sending the production parameters to the production equipment for producing the LCP film for production, wherein the production equipment for producing the LCP film uses extrusion casting for production.
For another example, the adjustment module is configured to: in case the LCP liquid has a mobility less than the minimum of the range values, the predetermined temperature is increased. Or, the adjusting module is configured to: in case the LCP liquid has a flowability greater than the maximum of the range value, the predetermined temperature is lowered. Optionally, the adjusting module is configured to increase or decrease the predetermined temperature by a predetermined percentage each time; the measuring module is configured to measure the flowability of the LCP liquid after each increase or decrease of the predetermined percentage.
The problem that the LCP film production process among the prior art relies on the manual work to adjust production parameter according to the LCP particle of difference and leads to is solved through this embodiment, uses software to carry out the processing of temperature parameter to make the LCP liquid reach the production requirement, thereby improved the quality of LCP film.
The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art to which the present application pertains. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. A parameter processing method based on LCP film preparation raw materials is characterized by comprising the following steps:
obtaining the fluidity of an LCP liquid into which LCP particles are melted at a predetermined temperature, wherein the fluidity is based on the dynamic viscosity of the LCP liquid and the density of the LCP liquid;
judging the fluidity and comparing the fluidity with a preset standard fluidity, wherein the standard fluidity is a range value;
if the liquidity of the LCP liquid falls within the range value, acquiring a production parameter corresponding to the standard liquidity;
adjusting the predetermined temperature of the step of melting the LCP particles into the LCP liquid if the flowability of the LCP liquid does not fall within the range of values;
the adjusted LCP liquid fluidity is measured and readjusted until the LCP liquid fluidity falls within the range of values.
2. The method of claim 1, wherein after obtaining the production parameter corresponding to the standard flow, the method further comprises:
and sending the production parameters to a production device for producing the LCP film for production, wherein the production device for producing the LCP film uses extrusion casting for production.
3. The method according to claim 1, wherein if the flowability of the LCP liquid does not fall within the range of values, adjusting the predetermined temperature of the step of melting the LCP particles into the LCP liquid comprises:
in case the LCP liquid has a mobility less than the minimum of the range values, the predetermined temperature is increased.
4. The method according to claim 1, wherein if the flowability of the LCP liquid does not fall within the range of values, adjusting the predetermined temperature of the step of melting the LCP particles into the LCP liquid comprises:
in case the LCP liquid has a flowability greater than the maximum of the range value, the predetermined temperature is lowered.
5. The method according to any one of claims 1 to 4, wherein adjusting said predetermined temperature of the step of melting said LCP particles into said LCP liquid, and wherein measuring and readjusting the flowability of the adjusted LCP liquid comprises:
each time the predetermined temperature is increased or decreased by a predetermined percentage and the flowability of the LCP liquid is measured after each increase or decrease of the predetermined percentage.
6. A parameter processing device based on LCP film preparation raw material, characterized by comprising:
a first acquiring module, configured to acquire fluidity of LCP liquid melted by LCP particles at a predetermined temperature, wherein the fluidity is based on the dynamic viscosity of the LCP liquid and the density of the LCP liquid;
the judging module is used for judging that the flowability is compared with a preset standard flowability, wherein the standard flowability is a range value;
the second acquisition module is used for acquiring the production parameter corresponding to the standard liquidity if the liquidity of the LCP liquid falls within the range value;
an adjustment module for adjusting the predetermined temperature of the step of melting the LCP particles into the LCP liquid if the flowability of the LCP liquid does not fall within the range of values;
and the measuring module is used for measuring and readjusting the fluidity of the adjusted LCP liquid until the fluidity of the LCP liquid falls into the range value.
7. The apparatus of claim 6, further comprising:
and the sending module is used for sending the production parameters to production equipment for producing the LCP film for production, wherein the production equipment for producing the LCP film is produced by using extrusion casting.
8. The apparatus of claim 6, wherein the adjustment module is configured to:
in case the LCP liquid has a mobility less than the minimum of the range values, the predetermined temperature is increased.
9. The apparatus of claim 6, wherein the adjustment module is configured to:
in case the LCP liquid has a flowability greater than the maximum of the range value, the predetermined temperature is lowered.
10. The apparatus according to any one of claims 6 to 9,
the adjusting module is used for increasing or decreasing the preset temperature by a preset percentage each time;
the measuring module is configured to measure the flowability of the LCP liquid after each increase or decrease of the predetermined percentage.
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| GB891651A (en) * | 1958-09-18 | 1962-03-14 | Phillips Petroleum Co | Transparent polyethylene films and method for production thereof |
| CN111941989A (en) * | 2020-08-03 | 2020-11-17 | 上海联净电子科技有限公司 | LCP film heat treatment deep processing production line device and technology |
| CN113278205A (en) * | 2021-05-25 | 2021-08-20 | 宁夏清研高分子新材料有限公司 | LCP film and preparation method thereof |
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| GB891651A (en) * | 1958-09-18 | 1962-03-14 | Phillips Petroleum Co | Transparent polyethylene films and method for production thereof |
| CN111941989A (en) * | 2020-08-03 | 2020-11-17 | 上海联净电子科技有限公司 | LCP film heat treatment deep processing production line device and technology |
| CN113278205A (en) * | 2021-05-25 | 2021-08-20 | 宁夏清研高分子新材料有限公司 | LCP film and preparation method thereof |
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