CN113652079A - Conductive material, preparation process and capacitive screen auxiliary touch device - Google Patents
Conductive material, preparation process and capacitive screen auxiliary touch device Download PDFInfo
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- CN113652079A CN113652079A CN202111112921.3A CN202111112921A CN113652079A CN 113652079 A CN113652079 A CN 113652079A CN 202111112921 A CN202111112921 A CN 202111112921A CN 113652079 A CN113652079 A CN 113652079A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
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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
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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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
- C08K2201/001—Conductive additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
Abstract
The invention is suitable for the field of capacitive screen touch devices, and provides a conductive material, a preparation process and a capacitive screen auxiliary touch device, wherein the conductive material comprises the following components in parts by weight: thermoplastic polyurethane elastomer: 90-110 parts; acrylic elastomer: 4-12 parts; a compatilizer: 2-5 parts; conductive carbon black a: 5-20 parts of a solvent; conductive carbon black B: 3-7 parts; plasticizer: 6-18 parts; an antioxidant A: 1.0-1.5 parts; and (3) antioxidant B: 0.5-0.8 part; lubricant: 2.5-4 parts; silicone master batch: 3-8 parts; the capacitive screen auxiliary touch device comprises: a finger sleeve body; the touch screen head positioning belt is movably connected to the finger sleeve body; the touch screen head is fixedly connected to the touch screen head positioning belt; the conductive material disclosed by the invention avoids the problems that the touch material is easy to oxidize and lose efficacy and is not washable in the prior art, and the auxiliary touch device of the capacitive screen can be combined with gloves to protect hands from being frostbitten when in use.
Description
Technical Field
The invention belongs to the field of capacitive screen touch devices, and particularly relates to a conductive material, a preparation process and a capacitive screen auxiliary touch device.
Background
At present, capacitive touch screen type electronic products are widely applied, for example, most of smart phones are generally operated directly by hands at normal temperature, and the hands are uncomfortable to operate and easily frosted due to frozen hands in cold weather.
Secondary touch screen operators now used in cold weather have: 1. a stylus; 2. touch screen gloves. The touch screen pen is easy to lose, has storage trouble and searching trouble each time, and the comfort, the sensitivity and the accuracy are reduced after wearing the gloves; the touch screen glove is characterized in that the finger tip part of the glove is contacted with the capacitive screen through the outer part of the conductive cloth, and the conductive cloth inside the glove is contacted with fingers to form a conductive path to realize touch screen operation; and the finger tip of the glove is coated with conductive adhesive, and the finger is contacted with an external touch screen through the conductive adhesive. Because of the plane contact, the typewriting is basically impossible or very difficult; the sensitivity of the touch screen is not ideal; in addition, the conductive cloth (yarn) and the conductive coating are both afraid of oxidation, are not resistant to washing and have short service life. Therefore, the application provides a conductive material and a capacitive screen auxiliary touch device using the conductive material.
Disclosure of Invention
The invention provides a conductive material, a preparation process and a capacitive screen auxiliary touch device, and aims to solve the problems that the conductive material in the conventional capacitive screen auxiliary touch device is easy to oxidize and lose efficacy and short in service life.
The invention is realized in such a way that the conductive material comprises the following components in parts by weight:
thermoplastic polyurethane elastomer: 90-110 parts;
acrylic elastomer: 4-12 parts;
a compatilizer: 2-5 parts;
conductive carbon black a: 5-20 parts of a solvent;
conductive carbon black B: 3-7 parts;
plasticizer: 6-18 parts;
an antioxidant A: 1.0-1.5 parts;
and (3) antioxidant B: 0.5-0.8 part;
lubricant: 2.5-4 parts;
silicone master batch: 3-8 parts.
Preferably, the conductive material comprises the following components in parts by weight: thermoplastic polyurethane elastomer: 90 parts of a mixture;
acrylic elastomer: 10 parts of (A);
a compatilizer: 3.5 parts;
conductive carbon black a: 20 parts of (1);
conductive carbon black B: 3 parts of a mixture;
plasticizer: 13 parts;
an antioxidant A: 1 part;
and (3) antioxidant B: 0.5 part;
lubricant: 3.5 parts;
silicone master batch: 7 parts.
Preferably, the conductive material comprises the following components in parts by weight: thermoplastic polyurethane elastomer: 92 parts of (1);
acrylic elastomer: 8 parts of a mixture;
a compatilizer: 2.5 parts;
conductive carbon black a: 10 parts of (A);
conductive carbon black B: 5 parts of a mixture;
plasticizer: 10 parts of (A);
an antioxidant A: 1 part;
and (3) antioxidant B: 0.5 part;
lubricant: 3 parts of a mixture;
silicone master batch: 6 parts.
A preparation process for the conductive material, which comprises the following steps:
s100, drying a preset dose of thermoplastic polyurethane elastomer;
s200, adding the dried thermoplastic polyurethane elastomer into a mixer, starting the mixer to mix at a low speed, waiting for the temperature of the materials to rise to a preset temperature, converting the mixer into high-speed mixing, and stopping the mixer after the mixing is finished;
s300, adding a plasticizer into the mixing machine, starting low-speed mixing, stopping low-speed mixing after 2 seconds, adding other raw materials, starting the mixing machine again, uniformly mixing the raw materials, drying, stopping the mixing machine, and taking out the mixed raw materials to obtain a semi-finished conductive material;
and S400, adding the semi-finished conductive material into a double-screw extruder for granulation to obtain the finished conductive material.
Preferably, in step S200, the mixer speed is set to 960 rpm and the mixing time is set to 10-14 minutes.
A capacitive screen assisted touch device, comprising:
the finger sleeve body is in a cylindrical shape, and openings are formed in two ends of the finger sleeve body;
the finger sleeve body is in damping connection with the touch screen head positioning belt and is used for adjusting the position of the touch screen head on a fingertip;
the touch screen head is arranged on the touch screen head positioning belt and used for touching the touch screen;
the touch screen head positioning belt and the touch screen head are made of the conductive materials.
Preferably, the touch screen head is in a cylindrical shape with openings at two ends.
Preferably, the capacitive screen auxiliary touch device further includes:
the telescopic part is arranged on the finger sleeve body and is used for adjusting the inner diameter of the finger sleeve body.
Preferably, the side of the finger cover body is provided with the edge the axis of the finger cover body runs through the opening of the finger cover body, open-ended both sides are provided with the multiunit telescopic band mounting hole, the pars contractilis includes:
the telescopic main body is provided with a second positioning belt mounting hole for mounting the positioning belt of the touch screen head, and the telescopic main body is strip-shaped;
the telescopic belts are arranged on two sides of the telescopic main body and are respectively and movably connected in the telescopic belt mounting holes.
Preferably, an opening penetrating through the finger cot body along the axis of the finger cot body is formed in the side face of the finger cot body, and the telescopic part is an elastic rope connected to the opening.
Preferably, the telescopic part can be a hollow structure arranged on the finger sleeve body.
Preferably, the telescopic part is a wave-shaped folding structure arranged on the finger sleeve body.
Compared with the prior art, the embodiment of the application mainly has the following beneficial effects:
1. the conductive material disclosed by the invention avoids the problems that the touch material is easy to oxidize and not washable in the prior art, and the conductive material disclosed by the invention has the advantages of good scalability, high strength, good tearing resistance, smooth and flat surface and long service life.
2. The auxiliary touch device for the capacitive screen is sleeved outside the positions of the thumb, the index finger, the middle finger and the like of the glove, the touch screen head is in contact with the capacitive screen during operation, and all operations can be performed without taking off the glove in cold weather.
3. The capacitive screen auxiliary touch device disclosed by the invention is sleeved outside the positions of the thumb, the index finger, the middle finger and the like of the glove, is tightly and reliably connected with the fingers, can be connected to the glove to be stored together with the glove, and does not have the trouble of searching, carrying and storing.
4. The auxiliary touch device of the capacitive screen improves the operation sensitivity through the conductive material, has moderate contact area with the screen, is not easy to cause misoperation, has good touch screen effect and washing resistance, and can perform long-term touch screen operation.
Drawings
Fig. 1 is a schematic structural diagram of a capacitive screen auxiliary touch device according to an embodiment of the present invention
Fig. 2 is a schematic structural diagram of an auxiliary touch device for a capacitive screen according to another embodiment of the present invention;
fig. 3 is a schematic structural diagram of a finger sleeve body of an auxiliary touch device for a capacitive screen according to another embodiment of the present invention;
fig. 4 is a schematic structural diagram of a connecting band and a touch head in an auxiliary touch device for a capacitive screen according to another embodiment of the present invention;
fig. 5 is a schematic structural diagram of an auxiliary touch device for a capacitive screen according to still another embodiment of the present invention;
fig. 6 is a schematic structural diagram of a telescopic portion of an auxiliary touch device for a capacitive screen according to still another embodiment of the present invention;
fig. 7 is a schematic structural diagram of a finger sleeve body of a capacitive screen auxiliary touch device according to still another embodiment of the present invention;
fig. 8 is a schematic view of an overall structure of a capacitive screen auxiliary touch device according to another embodiment of the present invention;
fig. 9 is a schematic structural view of a middle finger sleeve body and an elastic portion of an auxiliary touch device for a capacitive screen according to another embodiment of the present invention;
fig. 10 is a schematic view of an overall structure of a capacitive screen auxiliary touch device according to still another embodiment of the present invention;
fig. 11 is a schematic structural diagram of a middle finger sleeve body and an elastic portion of an auxiliary touch device for a capacitive screen according to still another embodiment of the present invention;
fig. 12 is a schematic view of an overall structure of a capacitive screen auxiliary touch device according to still another embodiment of the present invention;
fig. 13 is a schematic structural diagram of a middle finger sleeve body and an elastic portion of an auxiliary touch device for a capacitive screen according to still another embodiment of the invention.
Detailed Description
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 application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and claims of this application or in the above-described drawings are used for distinguishing between different objects and not for describing a particular order.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
The embodiment of the invention provides a conductive material which comprises the following components in parts by weight:
thermoplastic polyurethane elastomer: 90-110 parts;
acrylic elastomer: 4-12 parts;
a compatilizer: 2-5 parts;
conductive carbon black a: 5-20 parts of a solvent;
conductive carbon black B: 3-7 parts;
plasticizer: 6-18 parts;
an antioxidant A: 1.0-1.5 parts;
and (3) antioxidant B: 0.5-0.8 part;
lubricant: 2.5-4 parts;
silicone master batch: 3-8 parts;
in the embodiment, a thermoplastic polyurethane elastomer and an acrylate elastomer are used as base materials, the conductivity of the material is improved by adding conductive carbon black A and conductive carbon black B, the antioxidant performance of the material is improved by adding antioxidant A and antioxidant B, and the material is processed by adding a compatilizer, a plasticizer, a lubricant and silicone master batch;
in this embodiment, the thermoplastic polyurethane elastomer is preferably a product of type 582A produced by austin, suzhou;
the acrylate elastomer is preferably a product of the SunigumP95 type produced by Ono Fa, France;
the compatilizer is preferably SEBS-g-MAH type product of American kraton;
the conductive carbon black A is preferably VXC-72R product produced by Kabot in America;
the conductive carbon black B is preferably a BP2000 product produced by American cabot, and in the embodiment, the conductive carbon black A and the conductive carbon black B are mutually cooperated when in use, so that the conductive efficiency can be optimized;
the plasticizer is preferably BLUEFLEX988SG product produced by Fushan Jinjia;
the antioxidant A is preferably a 1010 type antioxidant produced by Pasteur Germany;
the antioxidant B is preferably a 168-type antioxidant produced by German Basff, and in the using process, the 1010-type antioxidant and the 168-type antioxidant have a synergistic effect, so that the 1010-type antioxidant and the 168-type antioxidant supplement each other and the antioxidant effect can be improved;
the lubricant is preferably a liconaxop type montan wax produced by clariant;
the silicone masterbatch is preferably a product of type MB50017 from Dow Corning;
in this embodiment, the conductive carbon black a and the conductive carbon black B are two different grades of products, and the conductivity of the conductive material meets the requirements of the product by matching the two products;
the antioxidant A and the antioxidant B are two antioxidants with different types, and the antioxidant effect of the conductive material can be optimized through mixing and blending the two antioxidants with different types.
In a further preferred embodiment of the present invention, the conductive material comprises the following components in parts by weight:
thermoplastic polyurethane elastomer: 110 parts of (A);
acrylic elastomer: 12 parts of (1);
a compatilizer: 5 parts of a mixture;
conductive carbon black a: 20 parts of (1);
conductive carbon black B: 7 parts;
plasticizer: 18 parts of a mixture;
an antioxidant A: 1.5 parts;
and (3) antioxidant B: 0.8 part;
lubricant: 4 parts of a mixture;
silicone master batch: and 3 parts.
In a further preferred embodiment of the present invention, the conductive material comprises the following components in parts by weight: thermoplastic polyurethane elastomer: 100 parts of (A);
acrylic elastomer: 4 parts of a mixture;
a compatilizer: 2 parts of (1);
conductive carbon black a: 5 parts of a mixture;
conductive carbon black B: 7 parts;
plasticizer: 6 parts of (1);
an antioxidant A: 1.3 parts;
and (3) antioxidant B: 0.7 part;
lubricant: 2.5 parts;
silicone master batch: 8 parts.
In a further preferred embodiment of the present invention, the conductive material comprises the following components in parts by weight: thermoplastic polyurethane elastomer: 90 parts of a mixture;
acrylic elastomer: 10 parts of (A);
a compatilizer: 3.5 parts;
conductive carbon black a: 20 parts of (1);
conductive carbon black B: 3 parts of a mixture;
plasticizer: 13 parts;
an antioxidant A: 1 part;
and (3) antioxidant B: 0.5 part;
lubricant: 3.5 parts;
silicone master batch: 7 parts.
In a further preferred embodiment of the present invention, the conductive material comprises the following components in parts by weight:
thermoplastic polyurethane elastomer: 92 parts of (1);
acrylic elastomer: 8 parts of a mixture;
a compatilizer: 2.5 parts;
conductive carbon black a: 10 parts of (A);
conductive carbon black B: 5 parts of a mixture;
plasticizer: 10 parts of (A);
an antioxidant A: 1 part;
and (3) antioxidant B: 0.5 part;
lubricant: 3 parts of a mixture;
silicone master batch: 6 parts.
The invention also provides a preparation process applied to the conductive material, which comprises the following steps:
s100, taking a preset dose of thermoplastic polyurethane elastomer, and drying by hot air to discharge moisture;
s200, adding the thermoplastic polyurethane elastomer after water is discharged into a mixer, starting the mixer, setting the rotating speed of the mixer to 960 revolutions per minute, and stopping the mixer after elastomer particles become soft after 10-14 minutes;
s300, adding a plasticizer into the mixing machine, starting low-speed mixing, stopping low-speed mixing after 2 seconds, adding other raw materials, uniformly mixing, drying, stopping the machine, and taking out the mixed raw materials to obtain a semi-finished conductive material;
s400, adding the semi-finished conductive material into a double-screw extruder, melting and plasticizing, filtering impurities and infusible substances through a stainless steel filter screen, and granulating to obtain a finished conductive material;
in a preferred mode of the present embodiment, a combination of 80 mesh and 100 mesh screens is used for filtering the semi-finished conductive material.
The invention also discloses a capacitive screen auxiliary touch device, as shown in fig. 1, the capacitive screen auxiliary touch device comprises:
the finger sleeve body 1 is in a cylindrical shape with openings at two ends and is used for being sleeved on a finger;
the finger sleeve body 1 is movably connected with the touch screen head positioning belt 2 on the finger sleeve body 1, and the finger sleeve body 1 is in damping connection with the touch screen head positioning belt 2;
the touch screen head 3 is arranged on the touch screen head positioning belt 2 and is used for touching the touch screen;
the touch screen head positioning belt 2 and the touch screen head 3 are made of the conductive material according to any one of the above embodiments;
the capacitive touch screen technology works by utilizing current induction during operation, the capacitive touch screen is a four-layer composite glass screen, the inner surface and the interlayer of the glass screen are respectively coated with a layer of ITO (nano indium tin metal oxide), the outermost layer is a thin silica glass protective layer, the interlayer ITO coating is used as a working surface, four electrodes are led out from four corners, and the inner layer ITO is used as a shielding layer to ensure a good working environment. When an operator touches the capacitive screen, due to the action of an electric field, the touch screen head positioning belt 2 and the touch screen head 3 made of high polymer conductive materials form a coupling capacitor with a working surface, and because the working surface is connected with a high-frequency signal, a very small current is absorbed by the touch screen head positioning belt 2 and the touch screen head 3, and the currents respectively flow out of electrodes on four corners of the screen. The current flowing through the four electrodes is proportional to the distance from the touch point to the four corners, and the controller obtains the touch screen position through precise calculation of the four current proportions;
in this embodiment, when the touch screen head positioning tape 2 and the touch screen head 3 are processed, the conductive material made into a granular shape is dried, then made into a preset cross section through a mold, and cooled and cut to obtain a required product;
in this embodiment, the finger sleeve body 1, the touch screen head positioning belt 2 and the touch screen head 3 may also be processed in an injection molding manner;
in this embodiment, the touch screen head positioning strip 2 is a long strip, and when both ends of the touch screen head positioning strip 2 are installed on the finger sleeve body 1, the touch screen head positioning strip 2 is in a U shape on the finger sleeve body 1, and when the finger sleeve body 1 is worn on a fingertip, the touch screen head 3 is located at a finger belly position, because the touch screen head positioning strip 2 is movably connected to the finger sleeve body 1, the touch screen head positioning strip 2 can be adjusted at an installation position on the finger sleeve body 1, so that the touch screen head 3 can be adjusted at a fingertip position, and the tightness of the finger sleeve body 1 and the tightness of the touch screen head positioning strip 2 sleeved on the finger can be adjusted;
the touch screen head 3 is in a cylindrical shape with openings at two ends, the cross section of the touch screen head 3 is in a U shape, a circular shape, an omega shape and the like, so that the touch screen head 3 is in a groove shape, and two groove eaves of the touch screen head 3 are fixedly connected to the touch screen head positioning belt 2, so that the touch screen head 3 is in a line contact mode when initially contacting a touch screen, and rapid effectiveness of touch action is facilitated;
in some examples, when the touch screen head 3 is fixedly connected to the touch screen head positioning tape 2, two cuts are made at corresponding positions on the touch screen head positioning tape 2, the length of each cut is equal to the width of the touch screen head 3, the two cuts are parallel, the distance between the two cuts is equal to the width of the touch screen head 3 (which is not unfolded), two ends of the touch screen head 3 are inserted into the cuts, the touch screen head 3 is fixed on the touch screen head positioning tape 2 by means of a groove edge perpendicular to two walls of the touch screen head 3, and at this time, the structure of the touch screen head 3 refers to the open end shape of two capital letters of "U" and "Ω";
when the cross section of the touch screen head 3 is circular or elliptical, the touch screen head 3 can also be clamped on a touch screen head positioning belt 2, at this time, part of the touch screen head positioning belt 2 is arranged on the inner side of the touch screen head 3, and at this time, the inner diameter of the touch screen head 3 is smaller than the width of the touch screen head positioning belt 2, so that the touch screen head 3 is in interference connection with the touch screen head positioning belt 2;
when the touch screen is touched, the touch screen head 3 is in contact with the touch screen, the contact area between the touch screen head 3 and the touch screen is smaller than the area of the finger pad, so that mistaken touch can be prevented, and the touch screen head positioning belt 2 and the touch screen head 3 have high conductivity, so that the touch sensitivity can be improved;
when the touch screen is used, the screen can be touched by fingertips through the touch screen head positioning belt 2;
in some examples, the finger sleeve body 1 is made of the conductive material, so that the touch area can be increased;
as shown in fig. 1, as one preferred embodiment of this embodiment, the finger cover body 1 is a cylinder with openings at two ends, at least two parallel notches are formed in the finger cover body 1, the touch screen head positioning band 2 penetrates through the notches in the finger cover body 1, the touch screen head 3 is sleeved on the touch screen head positioning band 2, the touch screen head positioning band 2 presses the touch screen head 3 on the finger cover body 1, at this time, the touch screen head 3 is located between the two notches, so that the touch screen head 3 is connected to the finger cover body 1
As shown in fig. 2 to 4, as another preferred embodiment of this embodiment, the finger sleeve body 1 is a cylindrical body with openings at two ends, first positioning strap installation holes 11 are symmetrically arranged on the finger sleeve body 1, when the touch screen head positioning strap 2 is installed on the finger sleeve body 1, the touch screen head positioning strap 2 is inserted into the first positioning strap installation holes 11, so that the touch screen head positioning strap 2 is movably installed on the first positioning strap installation holes 11, and in some examples, the finger sleeve body 1 and the touch screen head positioning strap 2 can be in damping connection by controlling the width of the first positioning strap installation holes 11 and the width and thickness of the touch screen head positioning strap 2;
in some examples, the touchscreen positioning tape 2 and the touchscreen 3 are a unitary structure;
preferably, the touch screen head 3 is in a cylindrical shape with openings at two ends.
In a further preferred embodiment of the present invention, the capacitive screen auxiliary touch device further includes:
the telescopic part 4 is arranged on the finger sleeve body 1 and is used for adjusting the inner diameter of the finger sleeve body 1, so that the finger sleeve body 1 can adapt to fingers with different sizes;
as shown in fig. 5 and 6, an opening penetrating through the finger cot body 1 along the axis of the finger cot body 1 is provided on the side surface of the finger cot body 1, a plurality of sets of mounting holes 12 for the extensible belt are provided on both sides of the opening, and the extensible part 4 includes:
the telescopic main body is provided with a second positioning belt mounting hole 41 for mounting the touch screen head positioning belt 2 and is strip-shaped;
the at least two telescopic belts 42 are arranged on two sides of the telescopic main body, and the telescopic belts 42 on two sides of the telescopic main body are respectively movably connected in the telescopic belt mounting holes 12;
when the extensible part 4 is installed, the touch screen head positioning belt 2 is inserted into the first positioning belt installation hole 11 and the extensible belt 42, the extensible belt 42 is inserted into the extensible belt installation hole 12, when the size of the finger sleeve body 1 is adjusted, the finger sleeve body 1 is pulled by adjusting the position of the extensible belt installation hole 12 on the extensible belt 42, so that how many extensible belts 42 are drawn out of the extensible belt installation hole 12, the finger sleeve body 1 is adjusted to be large, and when the finger sleeve body 1 is adjusted to be small, the extensible belts 42 are inserted into the extensible belt installation hole 12, so that the finger sleeve body 1 can be adjusted to be small;
in some examples, the stretchable part 4 may also have other structures, for example, as shown in fig. 8 and 9, an opening penetrating through the glove body 1 along an axis of the glove body 1 is provided on a side surface of the glove body 1, the stretchable part 4 is an elastic rope connected to the opening, and the size of the glove body 1 is adjusted by the elasticity of the elastic rope of the glove body 1;
the opening of the finger sleeve body 1 is provided with fixing holes which are arranged at equal intervals, and the elastic rope is tied at the fixing holes.
Referring to fig. 10 and 11, the extensible part 4 may have another structure, and the extensible part 4 is a wave-shaped folding structure disposed on the finger glove body 1;
the wave-shaped folding structure can refer to the structure of a folding fan, and as the conductive material has certain elasticity, when the conductive material is made into the wave-shaped folding structure, the wave-shaped folding structure can stretch out and draw back, so that the size of the finger sleeve body 1 can be adjusted.
Referring to fig. 12 and 13, the extensible part 4 may also be a hollow structure disposed on the finger glove body 1, when the extensible part 4 is hollow, the hollow part of the finger glove body 1 is in a strip shape, and the size of the finger glove body 1 can be adjusted by the elasticity of the conductive material due to the elasticity of the conductive material.
In summary, the invention provides a conductive material, a preparation process and a capacitive screen auxiliary touch device, wherein the conductive material comprises the following components in parts by weight:
thermoplastic polyurethane elastomer: 90-110 parts;
acrylic elastomer: 4-12 parts;
a compatilizer: 2-5 parts;
conductive carbon black a: 5-20 parts of a solvent;
conductive carbon black B: 3-7 parts;
plasticizer: 6-18 parts;
an antioxidant A: 1.0-1.5 parts;
and (3) antioxidant B: 0.5-0.8 part;
lubricant: 2.5-4 parts;
silicone master batch: 3-8 parts;
in the embodiment, a thermoplastic polyurethane elastomer and an acrylate elastomer are used as base materials, the conductivity of the material is improved by adding conductive carbon black A and conductive carbon black B, the antioxidant performance of the material is improved by adding antioxidant A and antioxidant B, and the material is processed by adding a compatilizer, a plasticizer, a lubricant and silicone master batch;
the conductive material disclosed by the invention avoids the problems that the touch material is easy to oxidize and not washable in the prior art, and the conductive material disclosed by the invention has the advantages of good scalability, high strength, good tearing resistance, smooth and flat surface and long service life.
It should be noted that, for simplicity of description, the above-mentioned embodiments are described as a series of acts, but those skilled in the art will recognize that the present invention is not limited by the order of acts, as some steps may occur in other orders or concurrently in accordance with the invention. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required by the invention.
The above examples are only used to illustrate the technical solutions of the present invention, and do not limit the scope of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from these embodiments without making any inventive step, fall within the scope of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art may still make various combinations, additions, deletions or other modifications of the features of the embodiments of the present invention according to the situation without conflict, so as to obtain different technical solutions without substantially departing from the spirit of the present invention, and these technical solutions also fall within the protection scope of the present invention.
Claims (10)
1. The conductive material is characterized by comprising the following components in parts by weight:
thermoplastic polyurethane elastomer: 90-110 parts;
acrylic elastomer: 4-12 parts;
a compatilizer: 2-5 parts;
conductive carbon black a: 5-20 parts of a solvent;
conductive carbon black B: 3-7 parts;
plasticizer: 6-18 parts;
an antioxidant A: 1.0-1.5 parts;
and (3) antioxidant B: 0.5-0.8 part;
lubricant: 2.5-4 parts;
silicone master batch: 3-8 parts.
2. The conductive material of claim 1, wherein the conductive material comprises the following components in parts by weight:
thermoplastic polyurethane elastomer: 90 parts of a mixture;
acrylic elastomer: 10 parts of (A);
a compatilizer: 3.5 parts;
conductive carbon black a: 20 parts of (1);
conductive carbon black B: 3 parts of a mixture;
plasticizer: 13 parts;
an antioxidant A: 1 part;
and (3) antioxidant B: 0.5 part;
lubricant: 3.5 parts;
silicone master batch: 7 parts.
3. The conductive material of claim 1, wherein the conductive material comprises the following components in parts by weight:
thermoplastic polyurethane elastomer: 92 parts of (1);
acrylic elastomer: 8 parts of a mixture;
a compatilizer: 2.5 parts;
conductive carbon black a: 10 parts of (A);
conductive carbon black B: 5 parts of a mixture;
plasticizer: 10 parts of (A);
an antioxidant A: 1 part;
and (3) antioxidant B: 0.5 part;
lubricant: 3 parts of a mixture;
silicone master batch: 6 parts.
4. A capacitive screen assisted touch device, comprising:
the finger sleeve body is in a cylindrical shape, and openings are formed in two ends of the finger sleeve body;
the finger sleeve body is movably connected with the touch screen head positioning belt on the finger sleeve body, and the finger sleeve body is in damping connection with the touch screen head positioning belt;
the touch screen head is arranged on the touch screen head positioning belt and used for touching the touch screen;
the touch screen head positioning belt and the touch screen head are made of the conductive material according to any one of claims 1-3.
5. The capacitive screen auxiliary touch device according to claim 4, wherein the touch screen head is cylindrical with openings at two ends.
6. The capacitive screen auxiliary touch device according to claim 4, further comprising:
the telescopic part is arranged on the finger sleeve body and is used for adjusting the inner diameter of the finger sleeve body.
7. The capacitive screen auxiliary touch device as recited in claim 6, wherein an opening penetrating through the finger cover body along an axis of the finger cover body is disposed on a side surface of the finger cover body, a plurality of groups of elastic band mounting holes are disposed on two sides of the opening, and the elastic portion comprises:
the telescopic main body is provided with a second positioning belt mounting hole for mounting the positioning belt of the touch screen head, and the telescopic main body is strip-shaped;
the telescopic belts are arranged on two sides of the telescopic main body and are respectively and movably connected in the telescopic belt mounting holes.
8. The capacitive screen auxiliary touch device as recited in claim 6, wherein an opening penetrating the finger cover body along an axis of the finger cover body is disposed on a side surface of the finger cover body, and the flexible portion is an elastic rope connected to the opening.
9. The capacitive screen auxiliary touch device as claimed in claim 6, wherein the flexible portion is a hollow structure disposed on the finger sleeve body.
10. The capacitive screen auxiliary touch device as recited in claim 6, wherein the flexible portion is a wave-shaped folding structure disposed on the finger sleeve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111112921.3A CN113652079A (en) | 2021-09-18 | 2021-09-18 | Conductive material, preparation process and capacitive screen auxiliary touch device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111112921.3A CN113652079A (en) | 2021-09-18 | 2021-09-18 | Conductive material, preparation process and capacitive screen auxiliary touch device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113652079A true CN113652079A (en) | 2021-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111112921.3A Pending CN113652079A (en) | 2021-09-18 | 2021-09-18 | Conductive material, preparation process and capacitive screen auxiliary touch device |
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| CN (1) | CN113652079A (en) |
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