阅读说明：本技术 一种可用于纸张上3d打印的石墨烯导电油墨的配置方法 (Preparation method of graphene conductive ink for 3D printing on paper ) 是由 赵晨飞 王军 邓小贵 张卓清 兀旦晖 于 2021-01-12 设计创作，主要内容包括：本发明公开了一种可用于纸张上3D打印的石墨烯导电油墨的配置方法,步骤1,将去离子水、无水乙醇、丙三醇以一定的体积比混合；步骤2,在经步骤1得到的混合溶剂中依次加入银粉、石墨烯酒精浆料,用玻璃棒搅拌,然后进行超声分散；步骤3,经步骤2超声分散后加入水性聚氨酯树脂、水性丙烯酸乳液,用玻璃棒搅拌,再次超声分散,得到油墨；步骤4,利用油墨pH计测油墨pH,利用粘度计测油墨粘度；步骤5,将油墨利用JD200Proo 3D打印机在相片纸上进行电路板的打印,在一定的温度下干燥一段时间后,并测量电阻；本发明的方法制作的石墨烯导电油墨,制备工艺简单,环保、可回收,可以应用于相片纸上电路板的3D打印。(The invention discloses a preparation method of graphene conductive ink for 3D printing on paper, which comprises the following steps of 1, mixing deionized water, absolute ethyl alcohol and glycerol according to a certain volume ratio; step 2, adding silver powder and graphene alcohol slurry into the mixed solvent obtained in the step 1 in sequence, stirring by using a glass rod, and then performing ultrasonic dispersion; step 3, adding the aqueous polyurethane resin and the aqueous acrylic emulsion after the ultrasonic dispersion in the step 2, stirring by using a glass rod, and performing ultrasonic dispersion again to obtain the ink; step 4, measuring the pH value of the ink by using the pH value of the ink, and measuring the viscosity of the ink by using the viscosity meter; step 5, printing the printing ink on a circuit board on photographic paper by using a JD200Proo 3D printer, drying for a period of time at a certain temperature, and measuring the resistance; the graphene conductive ink prepared by the method is simple in preparation process, environment-friendly and recyclable, and can be applied to 3D printing of circuit boards on photo paper.)

1. A preparation method of graphene conductive ink for 3D printing on paper is characterized by comprising the following steps:

step 1, mixing deionized water, absolute ethyl alcohol and glycerol according to a certain volume ratio;

step 2, adding silver powder and graphene alcohol slurry into the mixed solvent obtained in the step 1 in sequence, stirring by using a glass rod, and then performing ultrasonic dispersion;

step 3, adding the aqueous polyurethane resin and the aqueous acrylic emulsion after the ultrasonic dispersion in the step 2, stirring by using a glass rod, and performing ultrasonic dispersion again to obtain the ink;

step 4, measuring the pH value of the ink by using the pH value of the ink, and measuring the viscosity of the ink by using the viscosity meter;

and 5, printing the printing ink on a circuit board on photographic paper by using a JD200Proo 3D printer, drying for a period of time at a certain temperature, and measuring the resistance.

2. The method for preparing the graphene conductive ink capable of being used for 3D printing on paper according to claim 1, wherein in the step 1, the ionized water, the absolute ethyl alcohol and the glycerol are mixed in a volume ratio of 1:3: 2.

3. The method for preparing the graphene conductive ink capable of being used for 3D printing on paper according to claim 1, wherein in the step 2, the mass ratio of the silver powder to the graphene alcohol paste is 1: 8.

4. The method for preparing the graphene conductive ink capable of being used for 3D printing on paper according to claim 1, wherein in the step 2, the ultrasonic dispersion time is 30 min.

5. The preparation method of the graphene conductive ink for 3D printing on paper according to claim 1, wherein the mass ratio of the aqueous polyurethane resin to the aqueous acrylic emulsion in the step 3 is 5: 2. 2:5 or 1:1, and ultrasonically dispersing for 30 min.

6. The method for preparing the graphene conductive ink capable of being used for 3D printing on paper according to claim 1, wherein the pH value of the ink in the step 4 is 8.1, and the viscosity of the ink is 8.5P.

7. The method for preparing the graphene conductive ink capable of being printed on the paper in the 3D mode according to claim 1, wherein in the step 5, the circuit board is designed through three-dimensional software before being printed through a printer, the line width is not less than 0.02mm, the line height is not less than 0.05mm, and the drying temperature after printing is not more than 150 ℃.

Technical Field

The invention belongs to the field of printing, and relates to a preparation method of graphene conductive ink for 3D printing on paper.

Background

The graphene-based conductive ink in the current market is complex in preparation process, the components of the ink are not environment-friendly enough, the graphene conductive ink is generally printed on a circuit board in an ink-jet printing mode, the circuit board is printed in a 3D printing mode, and the self-made graphene conductive ink is adopted, so that the preparation process is simplified, and the graphene-based conductive ink is suitable for circuit printing on paper products.

Disclosure of Invention

The invention aims to provide a preparation method of graphene conductive ink for 3D printing on paper, which is characterized in that the graphene conductive ink is prepared by adopting a physical method, and then the conductive ink is printed on the paper by a 3D printer, so that the printing time of a circuit board can be effectively shortened, the precision of the circuit board is improved, the pollution to the environment is reduced, and the preparation cost of the conductive ink is reduced.

The technical scheme adopted by the invention is that the preparation method of the graphene conductive ink for 3D printing on paper is implemented according to the following steps:

step 1, mixing deionized water, absolute ethyl alcohol and glycerol according to a certain volume ratio;

step 2, adding silver powder and graphene alcohol slurry into the mixed solvent obtained in the step 1 in sequence, stirring by using a glass rod, and then performing ultrasonic dispersion;

step 3, adding the aqueous polyurethane resin and the aqueous acrylic emulsion after the ultrasonic dispersion in the step 2, stirring by using a glass rod, and performing ultrasonic dispersion again to obtain the ink;

step 4, measuring the pH value of the ink by using the pH value of the ink, and measuring the viscosity of the ink by using the viscosity meter;

and 5, printing the printing ink on a circuit board on photographic paper by using a JD200Proo 3D printer, drying for a period of time at a certain temperature, and measuring the resistance.

The invention is also characterized in that:

wherein in the step 1, the ionized water, the absolute ethyl alcohol and the glycerol are mixed according to the volume ratio of 1:3: 2;

in the step 2, the mass ratio of the silver powder to the graphene alcohol slurry is 1: 8;

wherein in the step 2, the ultrasonic dispersion time is 30 min;

wherein the mass ratio of the aqueous polyurethane resin to the aqueous acrylic emulsion in the step 3 is 5: 2. 2:5 or 1:1, and ultrasonically dispersing for 30 min;

wherein the pH value of the ink in the step 4 is 8.1, and the viscosity is 8.5P;

and in the step 5, the circuit board is designed through three-dimensional software before being printed by using a printer, the line width is not less than 0.02mm, the line height is not less than 0.05mm, and the drying temperature after printing is not more than 150 ℃.

The invention has the beneficial effects that:

the graphene conductive ink prepared by the preparation method of the graphene conductive ink for 3D printing on paper has a simple preparation process, and can be applied to 3D printing of a circuit board on photo paper.

Drawings

Fig. 1 is a diagram of conductive ink prepared by a method for configuring graphene conductive ink for 3D printing on paper according to the present invention;

fig. 2 is a light emitting diagram of a circuit board diode printed by ink configured in the method for configuring graphene conductive ink for 3D printing on paper according to the present invention.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

The invention provides a preparation method of graphene conductive ink for 3D printing on paper, which is implemented by utilizing a physical blending method to prepare the graphene conductive ink and specifically comprising the following steps of:

step 1, mixing deionized water, absolute ethyl alcohol and glycerol in a volume ratio of 1:3: 2;

step 2, sequentially adding silver powder and graphene alcohol slurry into the mixed solvent, wherein the mass ratio of the silver powder to the graphene alcohol slurry is 1:8, stirring with a glass rod, and ultrasonically dispersing for 30 min;

step 3, adding the aqueous polyurethane resin and the aqueous acrylic emulsion, wherein the mass ratio of the aqueous polyurethane resin to the aqueous acrylic emulsion is 5: 2. 2:5 or 1:1, stirring by a glass rod, and ultrasonically dispersing for 30min to obtain the ink shown in figure 1;

step 4, measuring the pH value of the ink by using the pH value meter of the ink, wherein the pH value of the ink is 8.1, and measuring the viscosity by using the viscosity meter, wherein the viscosity is 8.5P;

step 5, designing a circuit board through three-dimensional software, wherein the line width is not less than 0.02mm, the line height is not less than 0.05mm, printing the circuit board on photographic paper by using a JD200Proo 3D printer, and measuring the resistance, wherein the drying temperature after printing is not more than 150 ℃;

and finally, fixing the light emitting diode, the power supply and the switch at corresponding positions by using glue, dripping a small amount of conductive glue at each pin after the fixing is finished, and waiting for drying, so that the LED lamp can be used. After drying, the power supply is switched on, the diode emits light, and the printing ink conducts electricity.

Example 1:

step 1: mixing 0.53g of deionized water, 1.14g of absolute ethyl alcohol and 1.36g of glycerol according to the volume ratio of 1:3: 2;

step 2: then, sequentially adding 0.5g of silver powder and 4g of graphene alcohol slurry into the mixed solvent, stirring by using a glass rod, and ultrasonically dispersing for 30 min;

and step 3: then adding 0.05g of waterborne polyurethane resin and 0.02g of waterborne acrylic emulsion (5:2), stirring by a glass rod, and carrying out ultrasonic dispersion for 30 min;

and 4, step 4: the ink pH was measured by the ink pH meter and found to be 8.1, and the viscosity was measured by the viscosity meter and found to be 8.5P.

And 5: the circuit boards were printed on 220 grammage photographic paper using a JD200pro 3D printer, dried at 150 ℃ for half an hour and the resistance was measured with a multimeter.

As shown in figure 2, the light emitting diode, the power supply and the switch are fixed at corresponding positions by glue, a small amount of conductive glue is dripped at each pin after the fixation is finished, the light emitting diode can be used after drying, the power supply is switched on after the drying, the diode emits light, and the printing ink conducts electricity.

Example 2:

step 1: mixing 0.53g of deionized water, 1.14g of absolute ethyl alcohol and 1.36g of glycerol according to the volume ratio of 1:3: 2;

step 2: then, sequentially adding 0.5g of silver powder and 4g of graphene alcohol slurry into the mixed solvent, stirring by using a glass rod, and ultrasonically dispersing for 30 min;

and step 3: then adding 0.02g of waterborne polyurethane resin and 0.05g of waterborne acrylic emulsion (2:5), stirring by a glass rod, and carrying out ultrasonic dispersion for 30 min;

and 4, step 4: the ink pH was measured by the ink pH meter and found to be 8.1, and the viscosity was measured by the viscosity meter and found to be 8.5P.

And 5: printing a circuit board on 220 gram weight photo paper by using a JD200Proo 3D printer, drying at 150 ℃ for half an hour, and measuring the resistance by using a universal meter;

the light-emitting diode, the power supply and the switch are fixed at corresponding positions by glue, and then a small amount of conductive glue is dripped at each pin after the fixation is finished, and the LED lamp can be used after drying. After drying, the power supply is switched on, the diode emits light, and the printing ink conducts electricity.

Example 3:

step 1: mixing 0.53g of deionized water, 1.14g of absolute ethyl alcohol and 1.36g of glycerol according to the volume ratio of 1:3: 2;

step 2: then, sequentially adding 0.5g of silver powder and 4g of graphene alcohol slurry into the mixed solvent, stirring by using a glass rod, and ultrasonically dispersing for 30 min;

and step 3: then adding 0.03g of waterborne polyurethane resin and 0.03g of waterborne acrylic emulsion (1:1), stirring by using a glass rod, and carrying out ultrasonic dispersion for 30 min;

and 4, step 4: the ink pH was measured by the ink pH meter and found to be 8.1, and the viscosity was measured by the viscosity meter and found to be 8.5P.

And 5: printing a circuit board on 220 gram weight photo paper by using a JD200Proo 3D printer, drying at 150 ℃ for half an hour, and measuring the resistance by using a universal meter;

the light-emitting diode, the power supply and the switch are fixed at corresponding positions by glue, after the glue is fixed, a small amount of conductive glue is dripped at each pin, the glue can be used after drying, the power supply is switched on after the glue is dried, the diode emits light, and the printing ink is conductive.