CN110698163A - Impact-resistant touch keyboard and production method thereof - Google Patents
Impact-resistant touch keyboard and production method thereof Download PDFInfo
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- CN110698163A CN110698163A CN201910795501.6A CN201910795501A CN110698163A CN 110698163 A CN110698163 A CN 110698163A CN 201910795501 A CN201910795501 A CN 201910795501A CN 110698163 A CN110698163 A CN 110698163A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/24—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl, ammonium or metal silicates; containing silica sols
- C04B28/26—Silicates of the alkali metals
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0082—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability making use of a rise in temperature, e.g. caused by an exothermic reaction
- C04B40/0085—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability making use of a rise in temperature, e.g. caused by an exothermic reaction involving melting of at least part of the composition
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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
- G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
- G06F3/0202—Constructional details or processes of manufacture of the input device
Abstract
The invention discloses an impact-resistant touch keyboard and a production method thereof. The production raw materials of the touch keyboard comprise sodium silicate, calcium silicate, silicon dioxide, silicon nitride, magnesium dioxide, zinc oxide, titanium dioxide, silica gel and PVB particles. The production method of the touch keyboard comprises the following steps of preparation of the base layer, preparation of the contact layer and final forming. When the touch keyboard is prepared, the magnesium dioxide, the zinc oxide and the titanium dioxide are added, so that the deformation rate is reduced, the hardness is increased, and the proportion can be adjusted according to actual production to be suitable for touch keyboards with various deformation rates and hardness; meanwhile, titanium dioxide and silica gel are added during preparation, the titanium dioxide and the silica gel are good shading materials, the effect difference existing independently of the titanium dioxide and the silica gel is not large through detection, the shading effect is not the same as that played by the combination of the titanium dioxide and the silica gel, and the proportion of the titanium dioxide and the silica gel can be adjusted according to actual needs.
Description
Technical Field
The invention relates to the field of production of touch keyboards, in particular to an impact-resistant touch keyboard and a production method thereof.
Background
In recent years, with the rapid development of touch sensing technology, more and more electronic devices begin to use a main touch sensing component to replace a conventional input method, and a touch keyboard is also in use. The touch keyboard replaces the traditional solid keyboard in many times, not only brings convenience to people, but also provides a more attractive and comfortable operation environment. The touch keyboard is internally provided with keys on the basis of the touch panel, and the smoothness of the touch panel is kept.
Among the prior art, touch keyboard has not been applied to market completely and uses, and the cost is higher on the one hand, and on the other hand touch keyboard is wearing and tearing comparatively seriously in the use, and touch keyboard takes place to warp easily when the click volume is great, and is shock-resistant, in case warp and will influence its information transmission's speed, changes whole consumptive material great after warping, is unfavorable for the utilization of resource. Meanwhile, the light transmittance of the touch keyboard can be increased along with the lapse of time in the use process, and the visual sense of an operator is influenced.
Disclosure of Invention
In order to solve the defects mentioned in the background art, the invention aims to provide an impact-resistant touch keyboard and a production method thereof, when the touch keyboard is prepared, magnesium dioxide, zinc oxide and titanium dioxide are added, so that the deformation rate is reduced, the hardness is increased, meanwhile, the influence rate of the combination of the magnesium dioxide and the zinc oxide obtained by detection is greater than that of the titanium dioxide, and the impact-resistant touch keyboard can be suitable for touch keyboards with various deformation rates and hardnesses according to the actual production regulation ratio;
meanwhile, when the touch control keyboard is prepared, the titanium dioxide and the silica gel are added, the titanium dioxide and the silica gel are good shading materials, the effect difference existing between the titanium dioxide and the silica gel is not large through detection, the effect is not like the shading effect achieved by combining the titanium dioxide and the silica gel, and the proportion of the titanium dioxide and the silica gel can be adjusted according to actual needs.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides an impact-resistant touch keyboard, includes basic unit and the contact layer of setting on the basic unit, and the basic unit is connected with the circuit board, and the contact layer is fixed on the basic unit, and contact layer and operating personnel direct contact control touch keyboard's normal input.
The production raw materials of the touch keyboard comprise sodium silicate, calcium silicate, silicon dioxide, silicon nitride, magnesium dioxide, zinc oxide, titanium dioxide, silica gel and PVB particles.
The touch keyboard comprises the following production raw materials in parts by weight: 120-160 parts of sodium silicate, 15-25 parts of calcium silicate, 18-24 parts of silicon dioxide, 12-15 parts of silicon nitride, 21-28 parts of magnesium dioxide, 15-24 parts of zinc oxide, 24-36 parts of titanium dioxide, 22-30 parts of silica gel and 8-14 parts of PVB particles.
Furthermore, the touch keyboard comprises the following production raw materials in parts by weight: 140 parts of sodium silicate, 20 parts of calcium silicate, 21 parts of silicon dioxide, 13 parts of silicon nitride, 25 parts of magnesium dioxide, 20 parts of zinc oxide, 30 parts of titanium dioxide, 26 parts of silica gel and 10 parts of PVB particles.
A production method of an impact-resistant touch keyboard comprises the following steps:
preparation of first, base layer
1) Dividing sodium silicate into two parts by mass, mixing one part of the sodium silicate with calcium silicate, silicon dioxide, silicon nitride, magnesium dioxide and zinc oxide, adding the mixture into a 5% sodium chloride solution after mixing completely, soaking for 2-3 hours, sterilizing, taking out and draining;
2) grinding the mixture obtained in the step 1 by using grinding equipment, putting the powder into a sealing box after grinding is finished, and introducing alcohol vapor into the sealing box for drying and disinfection;
3) heating the mixture obtained in the step 2 in heating equipment, and stirring the mixture;
4) and cooling the mixture obtained in the step 3 in the molten state, placing the mixture in a forming mold after cooling to the temperature of 320-350 ℃, and pressing the mixture into a required shape and thickness to obtain the base layer.
Preparation of contact layer
1) Mixing the other part of sodium silicate with titanium dioxide, silica gel and PVB particles, adding the mixture into an ethanol solution with the concentration of 25% after complete mixing, soaking for 1-2 hours, taking out after disinfection and draining;
2) heating the mixture obtained in the step 1 in heating equipment, keeping the mixture in full contact in the heating process, and keeping the temperature constant for 30min after heating to 1300-;
3) and cooling the mixture in the molten state obtained in the step 2, placing the mixture in a forming mold after cooling to the temperature of 350-380 ℃, and pressing the mixture into a required shape and thickness to obtain the contact layer.
Third, final forming
1) Coating a silica gel layer between the obtained base layer and the contact layer to bond the base layer and the contact layer, and keeping the base layer and the contact layer completely aligned while bonding;
2) extruding the base layer and the contact layer obtained in the step 1 by using a tablet press to obtain a preformed product;
3) and (3) carrying out ultrasonic cleaning on the preformed product obtained in the step (2), and then toughening to obtain a finished product.
Furthermore, the mesh number of the ground powder in the first step is 120-140 meshes, the drying and sterilizing time is 1-2 hours, and the introducing speed of the alcohol vapor is 25-30 ml/s.
Further, the heating temperature in the first step is kept constant after reaching 1500-.
Further, in the second step, the heating speed is 5-10 ℃/min, the stirring is carried out once every 5min, the stirring time is 10s, and the stirring speed is 40-45 r/min.
Further, the thickness of the silica gel layer in the third step is pressed to 0.1-0.15 mm.
The invention has the beneficial effects that:
1. when the touch keyboard is prepared, the touch keyboard is divided into the base layer module and the contact layer module, when one of the base layer module and the contact layer module is damaged, the touch keyboard can be detached for maintenance or replacement, the whole touch keyboard does not need to be detached, and the manufacturing cost is reduced;
2. when the touch keyboard is prepared, the magnesium dioxide, the zinc oxide and the titanium dioxide are added, so that the deformation rate is reduced, the hardness is increased, meanwhile, the influence rate of the combination of the magnesium dioxide and the zinc oxide obtained through detection is greater than that of the titanium dioxide, and the touch keyboard can be suitable for touch keyboards with various deformation rates and hardnesses according to the actual production adjustment proportion;
3. when the touch keyboard is prepared, the titanium dioxide and the silica gel are added, the titanium dioxide and the silica gel are good shading materials, the effect difference existing between the titanium dioxide and the silica gel is not large through detection, the effect is not like the shading effect achieved by combining the titanium dioxide and the silica gel, and the proportion of the titanium dioxide and the silica gel can be adjusted according to actual needs.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of the connection of a base layer and a contact layer according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.
An impact-resistant touch keyboard is shown in figure 1 and comprises a base layer 1 and a contact layer 2 arranged on the base layer 1, wherein the base layer 1 is connected with a circuit board, the contact layer 2 is fixed on the base layer 1, and the contact layer 2 is in direct contact with an operator to control normal input of the touch keyboard.
The production raw materials of the touch keyboard comprise sodium silicate, calcium silicate, silicon dioxide, silicon nitride, magnesium dioxide, zinc oxide, titanium dioxide, silica gel and PVB particles.
The touch keyboard comprises the following production raw materials in parts by weight: 120-160 parts of sodium silicate, 15-25 parts of calcium silicate, 18-24 parts of silicon dioxide, 12-15 parts of silicon nitride, 21-28 parts of magnesium dioxide, 15-24 parts of zinc oxide, 24-36 parts of titanium dioxide, 22-30 parts of silica gel and 8-14 parts of PVB particles.
The touch keyboard is preferably prepared from the following raw materials in parts by weight: 140 parts of sodium silicate, 20 parts of calcium silicate, 21 parts of silicon dioxide, 13 parts of silicon nitride, 25 parts of magnesium dioxide, 20 parts of zinc oxide, 30 parts of titanium dioxide, 26 parts of silica gel and 10 parts of PVB particles.
A production method of an impact-resistant touch keyboard comprises the following steps:
preparation of first, base layer
1) Dividing sodium silicate into two parts by mass, mixing one part of the sodium silicate with calcium silicate, silicon dioxide, silicon nitride, magnesium dioxide and zinc oxide, adding the mixture into a 5% sodium chloride solution after mixing completely, soaking for 2-3 hours, sterilizing, taking out and draining;
2) grinding the mixture obtained in the step 1 by using grinding equipment, wherein the ground powder has the mesh number of 120-140 meshes, putting the powder into a sealing box after grinding is finished, and introducing alcohol vapor into the sealing box for drying and sterilizing for 1-2 hours, wherein the introduction speed of the alcohol vapor is 25-30 ml/s;
3) placing the mixture obtained in the step 2 into heating equipment, keeping the temperature constant after the temperature reaches 1500-;
4) and cooling the mixture obtained in the step 3 in the molten state, placing the mixture in a forming mold after cooling to the temperature of 320-350 ℃, and pressing the mixture into a required shape and thickness to obtain the base layer.
Preparation of contact layer
1) Mixing the other part of sodium silicate with titanium dioxide, silica gel and PVB particles, adding the mixture into an ethanol solution with the concentration of 25% after complete mixing, soaking for 1-2 hours, taking out after disinfection and draining;
2) putting the mixture obtained in the step 1 into heating equipment, wherein the heating speed is 5-10 ℃/min, the mixture is kept in full contact in the heating process, the mixture is stirred once every 5min, the stirring time is 10s, the stirring speed is 40-45r/min, and after the mixture is heated to 1300-1340 ℃, the mixture is kept at the constant temperature for 30min and then is naturally cooled;
3) and cooling the mixture in the molten state obtained in the step 2, placing the mixture in a forming mold after cooling to the temperature of 350-380 ℃, and pressing the mixture into a required shape and thickness to obtain the contact layer.
Third, final forming
1) Coating a silica gel layer between the obtained base layer and the contact layer to be bonded, keeping the base layer and the contact layer completely aligned while bonding, and embedding electronic elements such as chips into the base layer and the contact layer to be bonded and fixed during manufacturing;
2) extruding the base layer and the contact layer obtained in the step 1 by using a tablet press until the silica gel layer is laminated to 0.1-0.15mm to obtain a preformed product;
3) and (3) carrying out ultrasonic cleaning on the preformed product obtained in the step (2), and then toughening to obtain a finished product.
Example 1: 120 g of sodium silicate, 15 g of calcium silicate, 18 g of silicon dioxide, 12 g of silicon nitride, 21 g of magnesium dioxide, 15 g of zinc oxide, 24 g of titanium dioxide, 22 g of silica gel and 8 g of PVB particles.
Example 2: 140 g of sodium silicate, 20 g of calcium silicate, 21 g of silicon dioxide, 13 g of silicon nitride, 25 g of magnesium dioxide, 20 g of zinc oxide, 30 g of titanium dioxide, 26 g of silica gel and 10 g of PVB particles.
Example 3: 160 g of sodium silicate, 25 g of calcium silicate, 24 g of silicon dioxide, 15 g of silicon nitride, 28 g of magnesium dioxide, 24 g of zinc oxide, 36 g of titanium dioxide, 30 g of silica gel and 14 g of PVB particles.
Comparative example 1: 140 grams of sodium silicate, 20 grams of calcium silicate, 21 grams of silicon dioxide, 13 grams of silicon nitride, 30 grams of titanium dioxide, 26 grams of silica gel, and 10 grams of PVB particles.
Comparative example 2: 140 grams of sodium silicate, 20 grams of calcium silicate, 21 grams of silicon dioxide, 13 grams of silicon nitride, 25 grams of magnesium dioxide, 20 grams of zinc oxide, 30 grams of titanium dioxide and 10 grams of PVB particles.
Comparative example 3: 140 g of sodium silicate, 20 g of calcium silicate, 21 g of silicon dioxide, 13 g of silicon nitride, 25 g of magnesium dioxide, 20 g of zinc oxide, 26 g of silica gel and 10 g of PVB particles.
Comparative example 4: 140 grams of sodium silicate, 20 grams of calcium silicate, 21 grams of silicon dioxide, 13 grams of silicon nitride, 25 grams of magnesium dioxide, 20 grams of zinc oxide and 10 grams of PVB particles.
The examples 1, 2 and 3 and the comparative examples 1, 2, 3 and 4 are respectively prepared by the production method of the touch keyboard, and the obtained finished products are respectively detected, wherein the detection items comprise: the light transmittance, the hardness, the compressive strength, the deformation rate of 1000 times of 0.2N continuous clicks and the deformation rate of 5000 times of 0.2N continuous clicks, and the detection results are shown in the following table:
and (3) detection results:
1. for the light transmittance, the light transmittance of examples 1 to 3 and comparative example 1 is poor, and the light-shielding property is good, the light transmittance of comparative examples 2 and 3 is moderate, and the light-shielding property is moderate, and the light transmittance of comparative example 4 is good, and the light-shielding property is poor;
2. for hardness, examples 1 to 3 and comparative example 2 had large hardness, comparative examples 3 and 4 had moderate hardness, and comparative example 1 had poor hardness;
3. for the compressive strength, the strength of the examples 1-3 and the strength of the comparative examples 1-4 are both better, and the strength difference obtained by detection is not large;
4. the deformation ratios are compared, the deformation ratios of examples 1-3 and comparative example 2 are lower, the deformation ratios of comparative example 1 and comparative examples 3 and 4 are larger, the deformation ratio of comparative example 1 is the largest, and the deformation ratio of 5000 times of continuous 0.2N clicks is larger than that of 1000 times of continuous 0.2N clicks, but the increase is not obvious.
And (4) detection conclusion:
1. with respect to the light transmittance, comparative example 2 has no silica gel with respect to examples 1 to 3 and comparative example 1, comparative example 3 has no titanium dioxide with respect to examples 1 to 3 and comparative example 1, and comparative example 4 has no titanium dioxide and silica gel with respect to examples 1 to 3 and comparative example 1, whereby it can be seen that titanium dioxide and silica gel are good light-screening materials, and the difference in the effects of titanium dioxide and silica gel alone is not large, and is not as good as the light-screening effect of titanium dioxide and silica gel in combination;
2. regarding hardness, comparative example 1 has no magnesium dioxide, zinc oxide compared to examples 1-3 and comparative example 2, and comparative examples 3 and 4 have no titanium dioxide compared to examples 1-3 and comparative example 2, so that magnesium dioxide, zinc oxide and titanium dioxide all increase hardness, and the combined influence rate of magnesium dioxide and zinc oxide is greater than that of titanium dioxide, and comparative example 2 has no colloidal silica compared to examples 1-3, but the difference in hardness is not so great that colloidal silica does not affect hardness;
3. as for the compressive strength, the strength of the examples 1 to 3 and the strength of the comparative examples 1 to 4 are better, so that the magnesium dioxide, the zinc oxide, the titanium dioxide and the silica gel are not materials which influence the compressive strength;
4. with respect to the deformation ratio, comparative example 1 has no magnesium dioxide and zinc oxide as compared with examples 1 to 3 and comparative example 2, and comparative examples 3 and 4 have no titanium dioxide as compared with examples 1 to 3 and comparative example 2, so that the deformation ratio is reduced in the presence of magnesium dioxide, zinc oxide and titanium dioxide, and the influence ratio of the combination of magnesium dioxide and zinc oxide is larger than that of titanium dioxide.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.
Claims (7)
1. An impact-resistant touch keyboard is characterized by comprising a base layer (1) and a contact layer (2) arranged on the base layer (1), wherein the base layer (1) is connected with a circuit board, the contact layer (2) is fixed on the base layer (1), and the contact layer (2) is in direct contact with an operator to control the normal input of the touch keyboard;
the production raw materials of the touch keyboard comprise sodium silicate, calcium silicate, silicon dioxide, silicon nitride, magnesium dioxide, zinc oxide, titanium dioxide, silica gel and PVB particles;
the touch keyboard comprises the following production raw materials in parts by weight: 120-160 parts of sodium silicate, 15-25 parts of calcium silicate, 18-24 parts of silicon dioxide, 12-15 parts of silicon nitride, 21-28 parts of magnesium dioxide, 15-24 parts of zinc oxide, 24-36 parts of titanium dioxide, 22-30 parts of silica gel and 8-14 parts of PVB particles.
2. The impact-resistant touch keyboard according to claim 1, wherein the touch keyboard is produced from the following raw materials in parts by weight: 140 parts of sodium silicate, 20 parts of calcium silicate, 21 parts of silicon dioxide, 13 parts of silicon nitride, 25 parts of magnesium dioxide, 20 parts of zinc oxide, 30 parts of titanium dioxide, 26 parts of silica gel and 10 parts of PVB particles.
3. A production method of an impact-resistant touch keyboard is characterized by comprising the following steps:
preparation of first, base layer
1) Dividing sodium silicate into two parts by mass, mixing one part of the sodium silicate with calcium silicate, silicon dioxide, silicon nitride, magnesium dioxide and zinc oxide, adding the mixture into a 5% sodium chloride solution after mixing completely, soaking for 2-3 hours, sterilizing, taking out and draining;
2) grinding the mixture obtained in the step 1 by using grinding equipment, putting the powder into a sealing box after grinding is finished, and introducing alcohol vapor into the sealing box for drying and disinfection;
3) heating the mixture obtained in the step 2 in heating equipment, and stirring the mixture;
4) cooling the mixture obtained in the step 3 in the molten state, placing the mixture in a forming mold after cooling to the temperature of 320-350 ℃, and pressing the mixture into a required shape and thickness to obtain a base layer;
preparation of contact layer
1) Mixing the other part of sodium silicate with titanium dioxide, silica gel and PVB particles, adding the mixture into an ethanol solution with the concentration of 25% after complete mixing, soaking for 1-2 hours, taking out after disinfection and draining;
2) heating the mixture obtained in the step 1 in heating equipment, keeping the mixture in full contact in the heating process, and keeping the temperature constant for 30min after heating to 1300-;
3) cooling the mixture in the molten state obtained in the step 2, placing the mixture in a forming mold after cooling to the temperature of 350-380 ℃, and pressing the mixture into a required shape and thickness to obtain a contact layer;
third, final forming
1) Coating a silica gel layer between the obtained base layer and the contact layer to bond the base layer and the contact layer, and keeping the base layer and the contact layer completely aligned while bonding;
2) extruding the base layer and the contact layer obtained in the step 1 by using a tablet press to obtain a preformed product;
3) and (3) carrying out ultrasonic cleaning on the preformed product obtained in the step (2), and then toughening to obtain a finished product.
4. The method as claimed in claim 1, wherein the first step comprises grinding the powder into particles of 120-140 meshes, drying and sterilizing the particles for 1-2 hours, and introducing alcohol vapor at a rate of 25-30 ml/s.
5. The method as claimed in claim 1, wherein the heating temperature in the first step is 1500-.
6. The method for producing an impact-resistant touch keyboard as claimed in claim 1, wherein in the second step, the heating speed is 5-10 ℃/min, the stirring is performed every 5min, the stirring time is 10s, and the stirring speed is 40-45 r/min.
7. The method for manufacturing an impact-resistant touch keyboard according to claim 1, wherein the thickness of the silicone layer in the third step is reduced to 0.1-0.15 mm.
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Application publication date: 20200117 |