CN110607072A - Pen point composite material of capacitive pen, passive capacitive pen and pen point preparation method thereof - Google Patents
Pen point composite material of capacitive pen, passive capacitive pen and pen point preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/16—Solid spheres
- C08K7/18—Solid spheres inorganic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
- C08K7/28—Glass
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
- G06F3/03545—Pens or stylus
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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Abstract
The invention belongs to the technical field of touch control, and provides a capacitive pen nib composite material, a passive capacitive pen and a nib preparation method thereof. The pen point composite material for the capacitance pen comprises the following raw materials in parts by weight: 3-5 parts of silver powder, 1-5 parts of glass beads, 150 parts of silica gel 100, 0.5-3 parts of coupling agent and 0.5-6 parts of vulcanizing agent. The pen point of the passive capacitance pen is prepared from the composite material of the pen point of the capacitance pen. The preparation method of the pen point of the passive capacitance pen comprises the following steps: weighing raw material components of the capacitance pen nib composite material; adding the raw material components into a mixing roll for mixing; cutting the silica gel mixture into required size, and placing the silica gel mixture on a material standing frame for standing; placing the rubber material in a pen point mold of a hot-pressing vulcanizing machine for heating, exhausting, maintaining pressure and molding; and (6) demolding. The pen point composite material of the capacitive pen, which is prepared by the invention, has the advantages of high writing smoothness, good wear resistance, small impact sound of a screen, no damage to the screen, good conductivity and excellent writing experience of the capacitive pen.
Description
Technical Field
The invention belongs to the technical field of touch control, and particularly relates to a capacitive pen nib composite material, a passive capacitive pen and a nib preparation method thereof.
Background
With the popularization of touch screens in life and work of people, touch pens with the advantages of high touch precision, rich expanded functions, accordance with the use habits of consumers and the like have gradually become one of mainstream human-computer interaction modes. In order to achieve the best writing effect and use experience, the nib material needs to be optimally modified and the processing and forming process needs to be adjusted.
Aiming at a passive capacitive pen, the principle is to simulate the touch effect of fingers, a pen point is made of a conductive material and can cause capacitance change of a touch screen matrix when being in contact with a touch screen, and the pen point materials of the passive capacitive pen popular in the market at present comprise conductive foam, metal, conductive fibers, conductive silica gel or conductive cloth and the like. Wherein electrically conductive bubble is cotton, conductive fiber and electrically conductive cloth material all have the problem that wear resistance is not enough to a certain extent, and the nib of metal class is scraped the touch screen easily and is colored and striking the screen when writing sound great, and electrically conductive silica gel can effectively avoid the problem that wear resistance is not enough and damage the screen, and the screen impact sound is little, but is subject to the characteristic of material itself, and electrically conductive silica gel class nib damping is great when writing, writes not smooth enough, uses easy fatigue for a long time.
Therefore, the pen point material which has high writing smoothness, good wear resistance, small screen impact sound, no damage to the screen and excellent conductive comprehensive performance is developed, and has important significance for improving the writing experience of the passive capacitance pen.
Disclosure of Invention
Based on the above, the invention aims to provide a pen point composite material for a capacitive pen, and the pen point of the passive capacitive pen prepared from the composite material has the advantages of high writing smoothness, good wear resistance, small screen impact sound, no damage to a screen, good conductivity and excellent writing experience after the composite material is assembled into the capacitive pen.
The technical scheme adopted by the invention is as follows:
electric capacity pen nib combined material, its characterized in that: the material comprises the following raw material components in parts by weight:
according to the composite material for the pen point of the capacitive pen, silica gel is used as a base material, so that the prepared pen point of the capacitive pen has the advantages of small impact sound (low noise) to a screen, stable chemical property, good weather resistance, aging resistance, good wear resistance, excellent processing characteristics and adjustable hardness; the silver powder can play a role in enhancing the conductivity of the composite material and can enable the writing sensitivity of the pen point to be high by adding the silver powder and the glass beads into the silica gel base material, the surface friction coefficient of the silica gel base material can be reduced by adding the glass beads, and the smoothness of writing of the pen point is improved by utilizing the ball bearing effect; the passive capacitance pen nib prepared from the composite material has the advantages of high writing smoothness, good wear resistance, small screen impact sound, no damage to a screen, good conductivity and the like, and obtains excellent writing experience after being assembled into a capacitance pen.
Further, the silver powder is spherical silver powder with the particle size of 8-30 um.
Preferably, the glass beads are hollow glass beads. Because the hollow glass beads have good elasticity, the pen point of the capacitance pen is softer than that of a capacitance pen with all silica gel, and the effects of shock absorption and sound absorption during writing can be enhanced; in addition, the hollow glass beads also play a role in reducing the weight of the pen point.
Preferably, the hollow glass beads are prepared by mixing 20-35um hollow glass beads and 50-85um hollow glass beads according to the weight ratio of 1: 1-5: 1 by weight ratio. The porosity and the pore size of the composite material of the pen point and the overall hardness and the weight of the pen point are adjusted by matching hollow glass beads with different particle sizes. Because the hollow glass beads with different sizes and different particle diameters are matched, the large hollow glass beads can be filled with some small hollow glass beads, the hollow glass beads with single particle diameter can be filled with silica gel, the elasticity of the hollow glass beads is better, the optimal scheme can further improve the shock absorption and sound absorption effects on the pen point of the capacitance pen, so that the noise reduction effect is optimal, the hardness of the whole composite material is more appropriate, the screen impact sound is effectively reduced, and the better writing experience is achieved; the porosity inside the finally formed material is high, the pore size distribution is uniform, and the structure can further play a role in reducing the whole weight of the pen point.
Further, 5-15 parts of pigment powder is also included. In particular embodiments, the pigment powder may be selected based on the desired color of the pen tip.
Preferably, the pigment powder is carbon powder. The carbon powder is used as pigment powder, and the first function is stable performance, heat resistance, chemical resistance, light resistance, low cost and strong tinting strength, so that the pen point is black and is a conventional color of the pen point; and secondly, the pen plays a role in enhancing the conductivity, and the writing sensitivity of the pen point is further improved.
Further, the coupling agent is a silane coupling agent, and the vulcanizing agent is one or a mixture of more of elemental sulfur, selenium, tellurium, sulfur-containing compounds, peroxides, quinone compounds, amine compounds, resin compounds, metal oxides and isocyanates. The addition of the coupling agent can effectively improve the dispersibility of the silver powder, the glass beads and the carbon powder in the silica gel matrix and promote the adhesion among different substances, thereby improving the overall performance of the composite material system of the pen point;
the invention also provides a passive capacitive pen, which is characterized in that the pen point of the passive capacitive pen is prepared from the capacitive pen point composite material. The passive capacitive pen brings excellent writing experience to a user, and the pen point of the passive capacitive pen has the advantages of high writing smoothness, good wear resistance, small screen impact sound, no damage to a screen, good conductivity and the like.
The invention also provides a preparation method of the pen point of the passive capacitance pen, which is characterized by comprising the following steps:
s1: weighing the raw material components of the capacitance pen nib composite material as defined in any one of claims 1 to 7 in parts by weight for later use;
s2: adding the raw material components into a mixing roll, and mixing to obtain a silica gel mixture;
s3: cutting the silica gel mixture into required size, and placing the silica gel mixture on a material standing frame to stand to form sizing material;
s4: placing the rubber material in a pen point mold of a hot-pressing vulcanizing machine for heating, exhausting, maintaining pressure and forming;
s5: and (6) demolding.
Further, the mixing temperature in the S2 is 60-100 ℃, the mixing time is 30-90 minutes, and the adding sequence of the raw material components is as follows: adding other components except the vulcanizing agent into a mixing roll, and then adding the vulcanizing agent for multiple times during mixing; in said S3: cutting the silica gel mixture into required size, covering PET films on two sides of the silica gel mixture for protection, and then placing the silica gel mixture on a material standing frame for 8-12 hours; the S5 further includes trimming after demolding.
The composite material of the pen point of the capacitance pen is light in weight, stable in chemical property, good in weather resistance, aging resistance, good in wear resistance, excellent in processing characteristic, adjustable in hardness and weight, and can be prepared into the passive capacitance pen point; the writing experience of the passive capacitive pen is excellent.
Detailed Description
In order that the invention may be more fully understood, reference will now be made to the following description. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
The pen point composite material of the capacitive pen comprises the following raw material components in parts by weight:
according to the composite material for the pen point of the capacitive pen, silica gel is used as a base material, so that the prepared pen point of the capacitive pen has the advantages of small impact sound (low noise) to a screen, stable chemical property, good weather resistance, aging resistance, good wear resistance, excellent processing characteristics and adjustable hardness; the silver powder can play a role in enhancing the conductivity of the composite material and can enable the writing sensitivity of the pen point to be high by adding the silver powder and the glass beads into the silica gel base material, the surface friction coefficient of the silica gel base material can be reduced by adding the glass beads, and the smoothness of writing of the pen point is improved by utilizing the ball bearing effect; the passive capacitance pen nib prepared from the composite material has the advantages of high writing smoothness, good wear resistance, small screen impact sound, no damage to a screen, good conductivity and the like, and obtains excellent writing experience after being assembled into a capacitance pen.
As a specific embodiment, the silver powder is spherical silver powder with the particle size of 8-30 um.
As a preferred embodiment, the glass beads are hollow glass beads. Because the hollow glass beads have good elasticity, the pen point of the capacitance pen is softer than that of a capacitance pen with all silica gel, and the effects of shock absorption and sound absorption during writing can be enhanced; in addition, the hollow glass beads also play a role in reducing the weight of the pen point.
Further preferably, the hollow glass beads can be prepared by mixing 20-35um hollow glass beads and 50-85um hollow glass beads in a ratio of 1: 1-5: 1 by weight ratio. The porosity and the pore size of the composite material of the pen point and the overall hardness and the weight of the pen point are adjusted by matching hollow glass beads with different particle sizes. Because the hollow glass beads with different sizes and different particle diameters are matched, the large hollow glass beads can be filled with some small hollow glass beads, the hollow glass beads with single particle diameter can be filled with silica gel, the elasticity of the hollow glass beads is better, the optimal scheme can further improve the shock absorption and sound absorption effects on the pen point of the capacitance pen, so that the noise reduction effect is optimal, the hardness of the whole composite material is more appropriate, the screen impact sound is effectively reduced, and the better writing experience is achieved; the porosity inside the finally formed material is high, the pore size distribution is uniform, and the structure can further play a role in reducing the whole weight of the pen point.
As an implementation mode, the composite material of the pen point of the capacitance pen also comprises 5-15 parts of pigment powder. The pigment powder can be selected according to the required color of the pen point.
As a preferred embodiment, the pigment powder is carbon powder. The carbon powder is used as pigment powder, and the first function is stable performance, heat resistance, chemical resistance, light resistance, low cost and strong tinting strength, so that the pen point is black and is a conventional color of the pen point; and secondly, the pen plays a role in enhancing the conductivity, and the writing sensitivity of the pen point is further improved.
In one embodiment, the coupling agent is a silane coupling agent, and the vulcanizing agent is one or more of elemental sulfur, selenium, tellurium, sulfur-containing compounds, peroxides, quinone compounds, amine compounds, resin compounds, metal oxides, and isocyanates. The addition of the coupling agent can effectively improve the dispersibility of the silver powder, the glass beads and the carbon powder in the silica gel matrix and promote the adhesion among different substances, thereby improving the overall performance of the composite material system of the pen point;
the pen point of the passive capacitance pen is prepared from the composite material of the pen point of the capacitance pen. The passive capacitive pen brings excellent writing experience to a user, and the pen point of the passive capacitive pen has the advantages of high writing smoothness, good wear resistance, small screen impact sound, no damage to a screen, good conductivity and the like.
The invention discloses a method for preparing a pen point of a passive capacitance pen, which comprises the following steps:
s1: weighing the raw material components of the capacitance pen nib composite material as defined in any one of claims 1 to 7 in parts by weight for later use;
s2: adding the raw material components into a mixing roll, and mixing to obtain a silica gel mixture;
s3: cutting the silica gel mixture into required size, and placing the silica gel mixture on a material standing frame to stand to form sizing material;
s4: placing the rubber material in a pen point mold of a hot-pressing vulcanizing machine for heating, exhausting, maintaining pressure and forming;
s5: and (6) demolding.
As a specific embodiment, the mixing temperature in the S2 is 60-100 ℃, the mixing time is 30-90 minutes, and the adding sequence of the raw material components is as follows: adding other components except the vulcanizing agent into a mixing roll, and then adding the vulcanizing agent for multiple times during mixing; in said S3: cutting the silica gel mixture into required size, covering PET films on two sides of the silica gel mixture for protection, and then placing the silica gel mixture on a material standing frame for 8-12 hours; the S5 further includes trimming after demolding.
The composite material of the pen point of the capacitance pen is light in weight, stable in chemical property, good in weather resistance, aging resistance, good in wear resistance, excellent in processing characteristic, adjustable in hardness and weight, and can be prepared into the passive capacitance pen point; the writing experience of the passive capacitive pen is excellent.
The present invention will be described in further detail with reference to specific examples and comparative examples.
The composition of each example of the capacitive pen nib composite of the invention and other comparative nib material examples is shown in table 1 below:
TABLE 1 (unit: parts by weight)
Example 7
The method for preparing the pen tip of the passive capacitive pen comprises the following steps:
s1: weighing 3 parts of silver powder, 2 parts of hollow glass microspheres, 7 parts of carbon powder, 110 parts of silica gel, 1 part of coupling agent and 2 parts of vulcanizing agent according to the weight parts in the formula of the embodiment 1 for later use;
s2: adding silver powder, glass beads, carbon powder, silica gel and a coupling agent into a clean mixing mill, mixing for 60 minutes at the temperature of 70 ℃, and slowly adding a vulcanizing agent for multiple times to obtain a silica gel mixture;
s3: cutting the mixed silica gel mixture into required size, covering PET film on two sides of the raw material for protection, and standing on a standing frame for 9 hours to obtain sizing material;
s4: placing the rubber material in a pen point mold of a hot-pressing vulcanizing machine for heating, exhausting, maintaining pressure and forming;
s5: and (5) demolding and finishing.
Example 8
The method for preparing the pen tip of the passive capacitive pen comprises the following steps:
s1: weighing 4 parts of silver powder, 3 parts of hollow glass microspheres, 8 parts of carbon powder, 120 parts of silica gel, 2 parts of coupling agent and 3 parts of vulcanizing agent according to the weight parts in the formula of the embodiment 2 for later use;
s2: adding silver powder, glass beads, carbon powder, silica gel and a coupling agent into a clean mixing mill, mixing for 70 minutes at the temperature of 80 ℃, and slowly adding a vulcanizing agent for multiple times to obtain a silica gel mixture;
s3: cutting the mixed silica gel mixture into required size, covering PET film on two sides of the raw material for protection, and standing on a standing frame for 10 hours to obtain sizing material;
s4: placing the rubber material in a pen point mold of a hot-pressing vulcanizing machine for heating, exhausting, maintaining pressure and forming;
s5: and (5) demolding and finishing.
Example 9
The method for preparing the pen tip of the passive capacitive pen comprises the following steps:
s1: weighing 5 parts of silver powder, 4 parts of hollow glass microspheres, 9 parts of carbon powder, 130 parts of silica gel, 3 parts of coupling agent and 4 parts of vulcanizing agent according to the weight parts in the formula of the embodiment 3 for later use;
s2: adding silver powder, glass beads, carbon powder, silica gel and a coupling agent into a clean mixing mill, mixing for 80 minutes at the temperature of 90 ℃, and slowly adding a vulcanizing agent for multiple times to obtain a silica gel mixture;
s3: cutting the mixed silica gel mixture into required size, covering PET film on two sides of the raw material for protection, and standing on a standing frame for 11 hours to obtain sizing material;
s4: placing the rubber material in a pen point mold of a hot-pressing vulcanizing machine for heating, exhausting, maintaining pressure and forming;
s5: and (5) demolding and finishing.
Example 10
The method for preparing the pen tip of the passive capacitive pen comprises the following steps:
s1: weighing 3 parts of silver powder, 1 part of solid glass microspheres, 5 parts of red pigment powder, 100 parts of silica gel, 0.5 part of coupling agent and 0.5 part of vulcanizing agent according to the weight parts in the formula of the embodiment 4 for later use;
s2: adding silver powder, glass beads, red pigment powder, silica gel and a coupling agent into a clean mixing roll, mixing for 30 minutes at the temperature of 60 ℃, and slowly adding a vulcanizing agent for multiple times to obtain a silica gel mixture;
s3: cutting the mixed silica gel mixture into required size, covering PET film on two sides of the raw material for protection, and standing on a standing frame for 8 hours to obtain sizing material;
s4: placing the rubber material in a pen point mold of a hot-pressing vulcanizing machine for heating, exhausting, maintaining pressure and forming;
s5: and (5) demolding and finishing.
Example 11
The method for preparing the pen tip of the passive capacitive pen comprises the following steps:
s1: weighing 4 parts of silver powder, 5 parts of solid glass microspheres, 15 parts of blue pigment powder, 150 parts of silica gel, 3 parts of coupling agent and 6 parts of vulcanizing agent according to the weight parts in the formula of the embodiment 5 for later use;
s2: adding silver powder, glass beads, blue pigment powder, silica gel and a coupling agent into a clean mixing roll, mixing for 90 minutes at the temperature of 100 ℃, and adding a vulcanizing agent for multiple times to obtain a silica gel mixture;
s3: cutting the mixed silica gel mixture into required size, and standing on a material standing frame for 12 hours to obtain rubber material;
s4: placing the rubber material in a pen point mold of a hot-pressing vulcanizing machine for heating, exhausting, maintaining pressure and forming;
s5: and (5) demolding and finishing.
Example 12
The method for preparing the pen tip of the passive capacitive pen comprises the following steps:
s1: weighing 5 parts of silver powder, 4 parts of solid glass microspheres, 130 parts of silica gel, 3 parts of coupling agent and 4 parts of vulcanizing agent according to the weight parts in the formula of the embodiment 6 for later use;
s2: adding silver powder, glass beads, silica gel and a coupling agent vulcanizing agent into a clean mixing roll, and mixing for 50 minutes at the temperature of 90 ℃ to obtain a silica gel mixture;
s3: cutting the mixed silica gel mixture into required size, and standing on a material standing frame to obtain a sizing material;
s4: placing the rubber material in a pen point mold of a hot-pressing vulcanizing machine for heating, exhausting, maintaining pressure and forming;
s5: and (5) demolding and finishing.
Example 13
The present example was subjected to performance testing using tips from various passive capacitance pens, prepared from the materials of the examples and comparative examples, and the results are shown in table 2 below:
TABLE 2
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (10)
1. Electric capacity pen nib combined material, its characterized in that: the material comprises the following raw material components in parts by weight:
2. the capacitive pen nib composite of claim 1, wherein: the silver powder is spherical silver powder with the particle size of 8-30 um.
3. The capacitive pen nib composite of claim 1, wherein: the glass beads are hollow glass beads.
4. The capacitive pen nib composite of claim 3, wherein: the hollow glass beads are prepared by mixing 20-35um hollow glass beads and 50-85um hollow glass beads according to the weight ratio of 1: 1-5: 1 by weight ratio.
5. The capacitive pen nib composite of claim 1, wherein: also comprises 5-15 parts of pigment powder.
6. The capacitive pen nib composite of claim 5, wherein: the pigment powder is carbon powder.
7. The capacitive pen nib composite of claim 1, wherein: the coupling agent is a silane coupling agent, and the vulcanizing agent is one or a mixture of more of elemental sulfur, selenium, tellurium, sulfur-containing compounds, peroxides, quinone compounds, amine compounds, resin compounds, metal oxides and isocyanate.
8. A passive capacitive pen, wherein the tip of the passive capacitive pen is prepared from the capacitive pen tip composite material as claimed in any one of claims 1 to 6.
9. A method for preparing a pen point of a passive capacitive pen is characterized by comprising the following steps:
s1: weighing the raw material components of the capacitance pen nib composite material as defined in any one of claims 1 to 7 in parts by weight for later use;
s2: adding the raw material components into a mixing roll, and mixing to obtain a silica gel mixture;
s3: cutting the silica gel mixture into required size, and placing the silica gel mixture on a material standing frame to stand to form sizing material;
s4: placing the rubber material in a pen point mold of a hot-pressing vulcanizing machine for heating, exhausting, maintaining pressure and forming;
s5: and (6) demolding.
10. The method for preparing a nib of a passive capacitive pen according to claim 8, wherein: the mixing temperature in the S2 is 60-100 ℃, the mixing time is 30-90 minutes, and the adding sequence of the raw material components is as follows: adding other components except the vulcanizing agent into a mixing roll, and then adding the vulcanizing agent for multiple times during mixing; in said S3: cutting the silica gel mixture into required size, covering PET films on two sides of the silica gel mixture for protection, and then placing the silica gel mixture on a material standing frame for 8-12 hours; the S5 further includes trimming after demolding.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111171572A (en) * | 2020-01-19 | 2020-05-19 | 广州视源电子科技股份有限公司 | Passive capacitive pen nib, passive capacitive pen and nib manufacturing method |
| CN115895082A (en) * | 2022-11-08 | 2023-04-04 | 广州众远智慧科技有限公司 | Composite material for touch pen conductive pen point, touch pen conductive pen point and preparation method thereof |
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Application publication date: 20191224 |
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