CN110295378B - A kind of preparation method of manganese dioxide-conductive polypropylene composite anode plate - Google Patents

A kind of preparation method of manganese dioxide-conductive polypropylene composite anode plate Download PDF

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CN110295378B
CN110295378B CN201910568457.5A CN201910568457A CN110295378B CN 110295378 B CN110295378 B CN 110295378B CN 201910568457 A CN201910568457 A CN 201910568457A CN 110295378 B CN110295378 B CN 110295378B
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manganese dioxide
powder
plate
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composite anode
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CN110295378A (en
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杨晓红
赵博文
梁淑华
陈科
杨斌
罗永光
邹军涛
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Xian University of Technology
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Abstract

The invention discloses a preparation method of a manganese dioxide-conductive polypropylene composite anode plate, which comprises the following steps: the following raw materials are respectively measured according to volume percentage: 5-70% of carbon black, 0.1-2% of copper powder and the balance of polypropylene powder, mixing the above powders, flatly paving the mixture between two preheated ceramic plates, placing the mixture in a high-temperature furnace for press forming to obtain a polyethylene plate, coating the polyethylene plate with manganese dioxide powder, passing the mixture between the two preheated ceramic plates, and placing the mixture in the high-temperature furnace for press forming to obtain the manganese dioxide-conductive polypropylene composite anode plate. The invention has simple operation flow, continuous net distribution of conductive carbon black and uniform distribution of copper powder in the composite anode plate, greatly reduces the resistivity of the conductive polypropylene, and simultaneously, the composite anode plate prepared by the method has lower oxygen evolution potential in the zinc electrodeposition process, and the surface manganese dioxide is well connected with the conductive polypropylene matrix.

Description

一种二氧化锰-导电聚丙烯复合阳极板的制备方法A kind of preparation method of manganese dioxide-conductive polypropylene composite anode plate

技术领域technical field

本发明属于电极材料制备技术领域,涉及一种二氧化锰-导电聚丙烯复合阳极板的制备方法。The invention belongs to the technical field of electrode material preparation, and relates to a preparation method of a manganese dioxide-conductive polypropylene composite anode plate.

背景技术Background technique

二氧化锰在电积锌过程中具有较高的催化活性,在传统铅基阳极板中二氧化锰起着保护铅电极基体不被进一步腐蚀和催化氧析出的双重作用,同时钛基二氧化锰阳极(二氧化锰以表面涂层的方式沉积在钛基体上)也表现出了优异的性能,因此二氧化锰作为电极的表面层在电极锌过程中有着很好的效果。但是铅基阳极的使用会使阴极锌产品的质量降低(铅因受腐蚀后进入电解液随后在阴极上析出),钛基二氧化锰阳极板中二氧化锰是以薄膜的形式沉积在钛基体表面,很容易脱落,因而使用寿命大幅降低。二氧化锰粉末的分解温度较低,在还未达到金属的软化温度时二氧化锰便会分解,很难通过热压的方式使其与金属复合。Manganese dioxide has high catalytic activity in the zinc electrodeposition process. In the traditional lead-based anode plate, manganese dioxide plays a dual role of protecting the lead electrode matrix from further corrosion and catalyzing the evolution of oxygen. At the same time, titanium-based manganese dioxide The anode (manganese dioxide deposited on the titanium substrate as a surface coating) also showed excellent performance, so manganese dioxide as the surface layer of the electrode has a good effect in the zinc electrode process. However, the use of lead-based anode will reduce the quality of cathode zinc products (lead enters the electrolyte after being corroded and then precipitates on the cathode). In the titanium-based manganese dioxide anode plate, manganese dioxide is deposited in the form of thin film on the titanium matrix The surface is easy to fall off, so the service life is greatly reduced. The decomposition temperature of manganese dioxide powder is low, and manganese dioxide will decompose before reaching the softening temperature of the metal, and it is difficult to make it composite with the metal by hot pressing.

发明内容SUMMARY OF THE INVENTION

本发明的目的是提供一种二氧化锰-导电聚丙烯复合阳极板的制备方法,解决了现有技术中存在的二氧化锰很难通过热压方式与金属复合形成稳定的连接以及铅基阳极的使用会使阴极锌产品的质量降低的问题。The purpose of the present invention is to provide a preparation method of manganese dioxide-conductive polypropylene composite anode plate, which solves the problem that manganese dioxide in the prior art is difficult to form a stable connection with metal by hot pressing and lead-based anode The use of cathode zinc products will reduce the quality of the problem.

本发明所采用的技术方案是,一种二氧化锰-导电聚丙烯复合阳极板的制备方法,具体按以下步骤实施:The technical scheme adopted in the present invention is, a preparation method of manganese dioxide-conductive polypropylene composite anode plate, which is specifically implemented according to the following steps:

步骤1、按体积百分比分别量取如下原料:炭黑5~70%,铜粉0.1~2%,余量为聚丙烯粉末;Step 1. Measure the following raw materials by volume percentage: carbon black 5-70%, copper powder 0.1-2%, and the balance is polypropylene powder;

步骤2、将步骤1量取的炭黑、铜粉以及聚丙烯粉末充分混合得到混合粉末,将混合粉末均匀平铺于经过预热的两面陶瓷板之间,将陶瓷板置于高温炉中进行压制成型,冷却至室温即得到导电聚乙烯板;Step 2. Fully mix the carbon black, copper powder and polypropylene powder measured in step 1 to obtain a mixed powder, spread the mixed powder evenly between the preheated ceramic plates on both sides, and place the ceramic plate in a high-temperature furnace for Press molding and cooling to room temperature to obtain a conductive polyethylene plate;

步骤3、取二氧化锰粉末,将取得的二氧化锰粉末涂覆于步骤2得到的导电聚乙烯板上,再将涂覆过二氧化锰粉末的导电聚乙烯板放置于经过预热的两面陶瓷板之间,将陶瓷板置于高温炉中进行压制成型,冷却至室温即得到二氧化锰—导电聚丙烯复合阳极板。Step 3, take manganese dioxide powder, coat the obtained manganese dioxide powder on the conductive polyethylene plate obtained in step 2, and then place the conductive polyethylene plate coated with manganese dioxide powder on both sides of the preheated Between the ceramic plates, the ceramic plates are placed in a high-temperature furnace for compression molding, and cooled to room temperature to obtain a manganese dioxide-conductive polypropylene composite anode plate.

本发明的特点还在于:The feature of the present invention also lies in:

步骤1中聚乙烯粉末和铜粉的粒度均为50~400目。In step 1, the particle sizes of the polyethylene powder and the copper powder are both 50-400 mesh.

步骤2和步骤3中的陶瓷板上均喷涂有硅油脱模剂。Both the ceramic plates in steps 2 and 3 are sprayed with silicone oil release agent.

步骤2和步骤3中压制成型所施加的压力为500~6000pa。The pressure applied in the compression molding in steps 2 and 3 is 500-6000pa.

步骤2和步骤3中高温炉的温度为100~250℃,陶瓷板置于高温炉中时间为5~60min。In steps 2 and 3, the temperature of the high-temperature furnace is 100-250° C., and the ceramic plate is placed in the high-temperature furnace for 5-60 minutes.

步骤2中平铺于两面陶瓷板之间的混合粉末厚度为5~12mm。In step 2, the thickness of the mixed powder spread between the two ceramic plates is 5-12 mm.

步骤3中位于陶瓷板之间的结构依次为二氧化锰层、导电聚乙烯板、二氧化锰层。In step 3, the structures located between the ceramic plates are a manganese dioxide layer, a conductive polyethylene plate, and a manganese dioxide layer in sequence.

步骤1中高温炉具体为箱式炉。The high temperature furnace in step 1 is specifically a box furnace.

本发明的有益效果是:本发明通过在箱式炉中完成了二氧化锰—导电聚丙烯复合阳极板的压制工艺,并且可以自由调节压制力,简化了压制成型所需的条件和设备;聚丙烯具有强度高、耐热性好、耐酸性介质腐蚀、重量轻、易加工的优点,通过在其中复合导电填料能够使得复合材料具有较好的导电性,且聚丙烯成型温度低,复合过程中不会造成MnO2的分解,且聚乙烯的使用不会使阴极锌产品的质量降低,通过本发明方法制备的导电聚丙烯板中导电炭黑呈连续网状分布于基体中,加入的铜粉均匀的分布于基体中,提高了导电聚丙烯的导电率;制备的二氧化锰—导电聚丙烯复合阳极板在电积锌过程中具有较低的析氧电位,且表面二氧化锰与导电聚丙烯基体连接良好。The beneficial effects of the present invention are as follows: the present invention completes the pressing process of manganese dioxide-conductive polypropylene composite anode plate in a box furnace, and the pressing force can be adjusted freely, thereby simplifying the conditions and equipment required for pressing and forming; Propylene has the advantages of high strength, good heat resistance, corrosion resistance to acidic media, light weight and easy processing. By compounding conductive fillers in it, the composite material can have better conductivity, and the molding temperature of polypropylene is low. The decomposition of MnO 2 will not be caused, and the use of polyethylene will not reduce the quality of the cathode zinc product. It is evenly distributed in the matrix, which improves the conductivity of conductive polypropylene; the prepared manganese dioxide-conductive polypropylene composite anode plate has a low oxygen evolution potential in the process of zinc electrodeposition, and the surface manganese dioxide and conductive polymer The acrylic matrix is well attached.

附图说明Description of drawings

图1是本发明一种二氧化锰-导电聚丙烯复合阳极板的制备方法的流程图;Fig. 1 is the flow chart of the preparation method of a kind of manganese dioxide-conductive polypropylene composite anode plate of the present invention;

图2是通过本发明一种二氧化锰-导电聚丙烯复合阳极板的制备方法制得的复合阳极板的组织显微图。2 is a micrograph of the structure of a composite anode plate prepared by a method for preparing a manganese dioxide-conductive polypropylene composite anode plate of the present invention.

具体实施方式Detailed ways

下面结合附图和具体实施方式对本发明进行详细说明。The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

本发明一种二氧化锰-导电聚丙烯复合阳极板的制备方法,如图1所示,具体按照以下步骤实施:A preparation method of a manganese dioxide-conductive polypropylene composite anode plate of the present invention, as shown in Figure 1, is specifically implemented according to the following steps:

步骤1、按体积百分比分别量取如下原料:粒径为0.5~5mm的炭黑5~70%,粒度为50~400目的铜粉0.1~2%,余量为粒度为50~400目的聚丙烯粉末。Step 1. Measure the following raw materials by volume percentage: 5-70% of carbon black with a particle size of 0.5-5 mm, 0.1-2% of copper powder with a particle size of 50-400 mesh, and the balance is polypropylene with a particle size of 50-400 mesh powder.

步骤2、将步骤1量取的炭黑经充分研磨,与铜粉和聚丙烯粉末进行充分混合得到混合粉末,将混合粉末均匀平铺于经过预热并且喷涂有硅油脱模剂的两面陶瓷板之间,喷涂硅油脱模剂时距陶瓷板30~50cm,使得呈均匀覆盖的薄层,混合粉末厚度为5~12mm,将该陶瓷板置于温度为100~250℃的箱式炉中,并施加压力为500~6000pa的配重,压制5~60min,冷却至室温即得到导电聚乙烯板;Step 2. Fully grind the carbon black measured in Step 1, and fully mix it with copper powder and polypropylene powder to obtain a mixed powder. Spread the mixed powder evenly on both sides of the preheated ceramic plate that is sprayed with silicone oil release agent. In between, spray the silicone oil release agent at a distance of 30 to 50 cm from the ceramic plate, so as to form a thin layer evenly covered, the thickness of the mixed powder is 5 to 12 mm, and place the ceramic plate in a box furnace with a temperature of 100 to 250 ° C. And apply a counterweight with a pressure of 500-6000pa, press for 5-60min, and cool to room temperature to obtain a conductive polyethylene board;

步骤3、取二氧化锰粉末,将取得的二氧化锰粉末涂覆于步骤2得到的导电聚乙烯板的上表面和下表面,再将涂覆过二氧化锰粉末的导电聚乙烯板放置于经过预热并且喷涂有硅油脱模剂的两面陶瓷板之间,将该陶瓷板置于温度为100~250℃的箱式炉中,并施加压力为500~6000pa的配重,压制5~60min,冷却至室温即得到二氧化锰—导电聚丙烯复合阳极板。Step 3, take the manganese dioxide powder, coat the obtained manganese dioxide powder on the upper surface and the lower surface of the conductive polyethylene plate obtained in step 2, and then place the conductive polyethylene plate coated with the manganese dioxide powder on the After being preheated and sprayed with silicone oil release agent on both sides of the ceramic plate, the ceramic plate is placed in a box furnace with a temperature of 100-250 ℃, and a counterweight with a pressure of 500-6000pa is applied, and pressed for 5-60min , and cooled to room temperature to obtain a manganese dioxide-conductive polypropylene composite anode plate.

在本发明一种二氧化锰-导电聚丙烯复合阳极板的制备方法的方法中:选用聚丙烯是因为聚丙烯具有强度高、耐热性好、耐酸性介质腐蚀、重量轻、易加工的优点,通过在其中复合导电填料也能具有较好的导电性,且其成型温度低,复合过程中不会造成二氧化锰的分解;In the method for preparing a manganese dioxide-conductive polypropylene composite anode plate of the present invention: polypropylene is selected because polypropylene has the advantages of high strength, good heat resistance, corrosion resistance to acid medium, light weight and easy processing. , the composite conductive filler can also have good conductivity, and its molding temperature is low, and the decomposition of manganese dioxide will not be caused during the composite process;

步骤2中先将陶瓷板预热的原因在于减少压制成型过程的热量损失,以便缩短成型时间,在陶瓷板两表面喷涂硅油脱模剂的作用是方便最终成品的分离,喷涂时距陶瓷板30~50cm的作用是喷涂呈均匀覆盖的薄层。The reason for preheating the ceramic plate first in step 2 is to reduce the heat loss in the press forming process, so as to shorten the forming time. The function of spraying silicone oil release agent on both surfaces of the ceramic plate is to facilitate the separation of the final product. The spraying time is 30 minutes away from the ceramic plate. The effect of ~50cm is to spray a thin layer of uniform coverage.

表1二氧化锰-导电聚丙烯复合阳极板和铅银合金阳极板的析氧电位Table 1 Oxygen evolution potential of manganese dioxide-conductive polypropylene composite anode plate and lead-silver alloy anode plate

电极种类Electrode type 二氧化锰-导电聚丙烯复合阳极板Manganese dioxide-conductive polypropylene composite anode plate 现有的铅银合金阳极板Existing lead-silver alloy anode plate 析氧电位(V.vs SCE)Oxygen evolution potential (V.vs SCE) 1.461.46 1.89~1.941.89~1.94

图2(a)为通过本发明一种二氧化锰-导电聚丙烯复合阳极板的制备方法制备的复合阳极板的基体形貌,从图中可看出导电炭黑在基体中形成完整的导电网络,且Cu粉均匀的分布于炭黑的导电通路中,增加了基体的导电性;图2(b)为通过本发明一种二氧化锰-导电聚丙烯复合阳极板的制备方法制备的复合阳极板的二氧化锰与导电聚丙烯的复合处连接形貌,从图中可看出复合处结构紧密,不易分离。Figure 2(a) shows the matrix morphology of the composite anode plate prepared by a method for preparing a manganese dioxide-conductive polypropylene composite anode plate according to the present invention. It can be seen from the figure that the conductive carbon black forms a complete conductive layer in the matrix. network, and the Cu powder is evenly distributed in the conductive path of the carbon black, which increases the conductivity of the matrix; Figure 2(b) is a composite anode prepared by a method for preparing a manganese dioxide-conductive polypropylene composite anode plate of the present invention. The connection morphology of the composite part of manganese dioxide and conductive polypropylene of the anode plate. It can be seen from the figure that the composite part has a tight structure and is not easy to separate.

表1为通过本发明一种二氧化锰-导电聚丙烯复合阳极板的制备方法制备的复合阳极板和现有的铅银合金阳极板在电积锌过程中析氧电位,从表中可看出,通过本发明的方法制备的复合阳极板在电积锌过程中的析氧电位明显低于现有的铅银合金阳极板的析氧电位,较低的析氧电位可减少导电过程能量的损耗。Table 1 shows the oxygen evolution potential of the composite anode plate prepared by the preparation method of a manganese dioxide-conductive polypropylene composite anode plate of the present invention and the existing lead-silver alloy anode plate in the zinc electrodeposition process, as can be seen from the table It can be seen that the oxygen evolution potential of the composite anode plate prepared by the method of the present invention is significantly lower than the oxygen evolution potential of the existing lead-silver alloy anode plate in the zinc electrodeposition process, and the lower oxygen evolution potential can reduce the energy consumption of the conduction process. loss.

实施例1Example 1

一种二氧化锰-导电聚丙烯复合阳极板的制备方法,具体按照以下步骤实施:A preparation method of manganese dioxide-conductive polypropylene composite anode plate is specifically implemented according to the following steps:

步骤1、按体积百分比分别量取如下原料:粒径为0.5mm的炭黑10%,粒度为50目的铜粉0.1%,余量为粒度为50目的聚丙烯粉末。Step 1. Measure the following raw materials by volume percentage: 10% carbon black with a particle size of 0.5 mm, 0.1% copper powder with a particle size of 50 meshes, and the balance is polypropylene powder with a particle size of 50 meshes.

步骤2、将步骤1量取的炭黑经充分研磨,与铜粉和聚丙烯粉末进行充分混合得到混合粉末,将混合粉末均匀平铺于经过预热并且喷涂有硅油脱模剂的两面陶瓷板之间,喷涂硅油脱模剂时距陶瓷板30cm,使得呈均匀覆盖的薄层,混合粉末厚度为5mm,将该陶瓷板置于温度为100℃的箱式炉中,并施加压力为500pa的配重,压制5min,冷却至室温即得到导电聚乙烯板;Step 2. Fully grind the carbon black measured in Step 1, and fully mix it with copper powder and polypropylene powder to obtain a mixed powder. Spread the mixed powder evenly on both sides of the preheated ceramic plate that is sprayed with silicone oil release agent. In between, spray the silicone oil release agent 30cm away from the ceramic plate, so as to form a uniformly covered thin layer, the thickness of the mixed powder is 5mm, the ceramic plate is placed in a box furnace with a temperature of 100 ℃, and a pressure of 500pa is applied. Counterweight, press for 5 minutes, and cool to room temperature to obtain a conductive polyethylene plate;

步骤3、取二氧化锰粉末,将取得的二氧化锰粉末涂覆于步骤2得到的导电聚乙烯板的上表面和下表面,再将涂覆过二氧化锰粉末的导电聚乙烯板放置于经过预热并且喷涂有硅油脱模剂的两面陶瓷板之间,将该陶瓷板置于温度为100℃的箱式炉中,并施加压力为500pa的配重,压制5min,冷却至室温即得到二氧化锰—导电聚丙烯复合阳极板。Step 3, take the manganese dioxide powder, coat the obtained manganese dioxide powder on the upper surface and the lower surface of the conductive polyethylene plate obtained in step 2, and then place the conductive polyethylene plate coated with the manganese dioxide powder on the After preheating and spraying the two ceramic plates with silicone oil release agent, the ceramic plate is placed in a box furnace with a temperature of 100 ° C, and a counterweight with a pressure of 500 Pa is applied, pressed for 5 minutes, and cooled to room temperature to obtain Manganese dioxide-conductive polypropylene composite anode plate.

实施例2Example 2

一种二氧化锰-导电聚丙烯复合阳极板的制备方法,如图1所示,具体按照以下步骤实施:A preparation method of manganese dioxide-conductive polypropylene composite anode plate, as shown in Figure 1, is specifically implemented according to the following steps:

步骤1、按体积百分比分别量取如下原料:粒径为2mm的炭黑25%,粒度为100目的铜粉0.5%,余量为粒度为100目的聚丙烯粉末。Step 1. Measure the following raw materials by volume percentage: 25% carbon black with a particle size of 2 mm, 0.5% copper powder with a particle size of 100 meshes, and the balance is polypropylene powder with a particle size of 100 meshes.

步骤2、将步骤1量取的炭黑经充分研磨,与铜粉和聚丙烯粉末进行充分混合得到混合粉末,将混合粉末均匀平铺于经过预热并且喷涂有硅油脱模剂的两面陶瓷板之间,喷涂硅油脱模剂时距陶瓷板35cm,使得呈均匀覆盖的薄层,混合粉末厚度为7mm,将该陶瓷板置于温度为150℃的箱式炉中,并施加压力为1000pa的配重,压制15min,冷却至室温即得到导电聚乙烯板;Step 2. Fully grind the carbon black measured in Step 1, and fully mix it with copper powder and polypropylene powder to obtain a mixed powder. Spread the mixed powder evenly on both sides of the preheated ceramic plate that is sprayed with silicone oil release agent. In between, spray the silicone oil release agent 35cm away from the ceramic plate, so as to form a uniformly covered thin layer, the thickness of the mixed powder is 7mm, the ceramic plate is placed in a box furnace with a temperature of 150 ℃, and a pressure of 1000pa is applied. Weight, press for 15 minutes, and cool to room temperature to obtain a conductive polyethylene board;

步骤3、取二氧化锰粉末,将取得的二氧化锰粉末涂覆于步骤2得到的导电聚乙烯板的上表面和下表面,再将涂覆过二氧化锰粉末的导电聚乙烯板放置于经过预热并且喷涂有硅油脱模剂的两面陶瓷板之间,将该陶瓷板置于温度为150℃的箱式炉中,并施加压力为1000pa的配重,压制15min,冷却至室温即得到二氧化锰—导电聚丙烯复合阳极板。Step 3, take the manganese dioxide powder, coat the obtained manganese dioxide powder on the upper surface and the lower surface of the conductive polyethylene plate obtained in step 2, and then place the conductive polyethylene plate coated with the manganese dioxide powder on the After being preheated and sprayed with silicone oil release agent on both sides of the ceramic plate, the ceramic plate is placed in a box furnace with a temperature of 150 ° C, and a counterweight with a pressure of 1000 Pa is applied, pressed for 15 minutes, and cooled to room temperature. Manganese dioxide-conductive polypropylene composite anode plate.

实施例3Example 3

本发明一种二氧化锰-导电聚丙烯复合阳极板的制备方法,具体按照以下步骤实施:A preparation method of a manganese dioxide-conductive polypropylene composite anode plate of the present invention is specifically implemented according to the following steps:

步骤1、按体积百分比分别量取如下原料:粒径为3mm的炭黑40%,粒度为200目的铜粉1%,余量为粒度为200目的聚丙烯粉末。Step 1. Measure the following raw materials by volume percentage: 40% carbon black with a particle size of 3 mm, 1% copper powder with a particle size of 200 mesh, and the balance is polypropylene powder with a particle size of 200 mesh.

步骤2、将步骤1量取的炭黑经充分研磨,与铜粉和聚丙烯粉末进行充分混合得到混合粉末,将混合粉末均匀平铺于经过预热并且喷涂有硅油脱模剂的两面陶瓷板之间,喷涂硅油脱模剂时距陶瓷板40cm,使得呈均匀覆盖的薄层,混合粉末厚度为9mm,将该陶瓷板置于温度为200℃的箱式炉中,并施加压力为3000pa的配重,压制30min,冷却至室温即得到导电聚乙烯板;Step 2. Fully grind the carbon black measured in Step 1, and fully mix it with copper powder and polypropylene powder to obtain a mixed powder. Spread the mixed powder evenly on both sides of the preheated ceramic plate that is sprayed with silicone oil release agent. Between, spray silicone oil release agent 40cm away from the ceramic plate, so that it is a thin layer evenly covered, the thickness of the mixed powder is 9mm, the ceramic plate is placed in a box furnace with a temperature of 200 ℃, and a pressure of 3000pa is applied. Counterweight, press for 30min, and cool to room temperature to obtain a conductive polyethylene board;

步骤3、取二氧化锰粉末,将取得的二氧化锰粉末涂覆于步骤2得到的导电聚乙烯板的上表面和下表面,再将涂覆过二氧化锰粉末的导电聚乙烯板放置于经过预热并且喷涂有硅油脱模剂的两面陶瓷板之间,将该陶瓷板置于温度为200℃的箱式炉中,并施加压力为3000pa的配重,压制30min,冷却至室温即得到二氧化锰—导电聚丙烯复合阳极板。Step 3, take the manganese dioxide powder, coat the obtained manganese dioxide powder on the upper surface and the lower surface of the conductive polyethylene plate obtained in step 2, and then place the conductive polyethylene plate coated with the manganese dioxide powder on the After preheating and spraying the two ceramic plates with silicone oil release agent, the ceramic plate is placed in a box furnace with a temperature of 200 ° C, and a counterweight with a pressure of 3000 Pa is applied, pressed for 30 minutes, and cooled to room temperature. Manganese dioxide-conductive polypropylene composite anode plate.

实施例4Example 4

本发明一种二氧化锰-导电聚丙烯复合阳极板的制备方法,具体按照以下步骤实施:A preparation method of a manganese dioxide-conductive polypropylene composite anode plate of the present invention is specifically implemented according to the following steps:

步骤1、按体积百分比分别量取如下原料:粒径为4mm的炭黑55%,粒度为300目的铜粉1.5%,余量为粒度为300目的聚丙烯粉末。Step 1. Measure the following raw materials by volume percentage: 55% of carbon black with a particle size of 4 mm, 1.5% of copper powder with a particle size of 300 meshes, and the balance is polypropylene powder with a particle size of 300 meshes.

步骤2、将步骤1量取的炭黑经充分研磨,与铜粉和聚丙烯粉末进行充分混合得到混合粉末,将混合粉末均匀平铺于经过预热并且喷涂有硅油脱模剂的两面陶瓷板之间,喷涂硅油脱模剂时距陶瓷板40cm,使得呈均匀覆盖的薄层,混合粉末厚度为11mm,将该陶瓷板置于温度为200℃的箱式炉中,并施加压力为4500pa的配重,压制45min,冷却至室温即得到导电聚乙烯板;Step 2. Fully grind the carbon black measured in Step 1, and fully mix it with copper powder and polypropylene powder to obtain a mixed powder. Spread the mixed powder evenly on both sides of the preheated ceramic plate that is sprayed with silicone oil release agent. In between, spray the silicone oil release agent at a distance of 40cm from the ceramic plate, so as to form a uniformly covered thin layer, and the thickness of the mixed powder is 11mm. Counterweight, press for 45 minutes, and cool to room temperature to obtain a conductive polyethylene plate;

步骤3、取二氧化锰粉末,将取得的二氧化锰粉末涂覆于步骤2得到的导电聚乙烯板的上表面和下表面,再将涂覆过二氧化锰粉末的导电聚乙烯板放置于经过预热并且喷涂有硅油脱模剂的两面陶瓷板之间,将该陶瓷板置于温度为200℃的箱式炉中,并施加压力为4500pa的配重,压制45min,冷却至室温即得到二氧化锰—导电聚丙烯复合阳极板。Step 3, take the manganese dioxide powder, coat the obtained manganese dioxide powder on the upper surface and the lower surface of the conductive polyethylene plate obtained in step 2, and then place the conductive polyethylene plate coated with the manganese dioxide powder on the After being preheated and sprayed with silicone oil release agent on both sides of the ceramic plate, the ceramic plate is placed in a box furnace with a temperature of 200 ° C, and a counterweight with a pressure of 4500 Pa is applied, pressed for 45 minutes, and cooled to room temperature. Manganese dioxide-conductive polypropylene composite anode plate.

实施例5Example 5

本发明一种二氧化锰-导电聚丙烯复合阳极板的制备方法,具体按照以下步骤实施:A preparation method of a manganese dioxide-conductive polypropylene composite anode plate of the present invention is specifically implemented according to the following steps:

步骤1、按体积百分比分别量取如下原料:粒径为5mm的炭黑70%,粒度为400目的铜粉2%,余量为粒度为400目的聚丙烯粉末。Step 1. Measure the following raw materials by volume percentage: 70% of carbon black with a particle size of 5 mm, 2% of copper powder with a particle size of 400 meshes, and the balance is polypropylene powder with a particle size of 400 meshes.

步骤2、将步骤1量取的炭黑经充分研磨,与铜粉和聚丙烯粉末进行充分混合得到混合粉末,将混合粉末均匀平铺于经过预热并且喷涂有硅油脱模剂的两面陶瓷板之间,喷涂硅油脱模剂时距陶瓷板50cm,使得呈均匀覆盖的薄层,混合粉末厚度为12mm,将该陶瓷板置于温度为250℃的箱式炉中,并施加压力为6000pa的配重,压制60min,冷却至室温即得到导电聚乙烯板;Step 2. Fully grind the carbon black measured in Step 1, and fully mix it with copper powder and polypropylene powder to obtain a mixed powder. Spread the mixed powder evenly on both sides of the preheated ceramic plate that is sprayed with silicone oil release agent. In between, spray the silicone oil release agent 50cm away from the ceramic plate, so as to form a uniformly covered thin layer, the thickness of the mixed powder is 12mm, the ceramic plate is placed in a box furnace with a temperature of 250°C, and a pressure of 6000pa is applied. Counterweight, press for 60min, and cool to room temperature to obtain a conductive polyethylene plate;

步骤3、取二氧化锰粉末,将取得的二氧化锰粉末涂覆于步骤2得到的导电聚乙烯板的上表面和下表面,再将涂覆过二氧化锰粉末的导电聚乙烯板放置于经过预热并且喷涂有硅油脱模剂的两面陶瓷板之间,将该陶瓷板置于温度为250℃的箱式炉中,并施加压力为6000pa的配重,压制60min,冷却至室温即得到二氧化锰—导电聚丙烯复合阳极板。Step 3, take the manganese dioxide powder, coat the obtained manganese dioxide powder on the upper surface and the lower surface of the conductive polyethylene plate obtained in step 2, and then place the conductive polyethylene plate coated with the manganese dioxide powder on the After being preheated and sprayed with silicone oil release agent on both sides of the ceramic plate, the ceramic plate is placed in a box furnace with a temperature of 250 ° C, and a counterweight with a pressure of 6000 Pa is applied, pressed for 60 minutes, and cooled to room temperature. Manganese dioxide-conductive polypropylene composite anode plate.

Claims (2)

1.一种二氧化锰-导电聚丙烯复合阳极板的制备方法,其特征在于,具体按以下步骤实施:1. a preparation method of manganese dioxide-conductive polypropylene composite anode plate, is characterized in that, specifically implements according to the following steps: 步骤1、按体积百分比分别量取如下原料:炭黑5~70%,铜粉0.1~2%,余量为聚丙烯粉末;Step 1. Measure the following raw materials by volume percentage: carbon black 5-70%, copper powder 0.1-2%, and the balance is polypropylene powder; 步骤2、将步骤1量取的炭黑、铜粉以及聚丙烯粉末充分混合得到混合粉末,将混合粉末均匀平铺于经过预热的两面陶瓷板之间,将陶瓷板置于高温炉中进行压制成型,冷却至室温即得到导电聚丙烯板;Step 2. Fully mix the carbon black, copper powder and polypropylene powder measured in step 1 to obtain a mixed powder, spread the mixed powder evenly between the preheated ceramic plates on both sides, and place the ceramic plate in a high-temperature furnace for Press molding and cooling to room temperature to obtain a conductive polypropylene plate; 步骤3、取二氧化锰粉末,将取得的二氧化锰粉末涂覆于步骤2得到的导电聚丙烯板上,再将涂覆过二氧化锰粉末的导电聚丙烯板放置于经过预热的两面陶瓷板之间,将陶瓷板置于高温炉中进行压制成型,冷却至室温即得到二氧化锰—导电聚丙烯复合阳极板;Step 3, take manganese dioxide powder, apply the obtained manganese dioxide powder on the conductive polypropylene plate obtained in step 2, and then place the conductive polypropylene plate coated with manganese dioxide powder on both sides of the preheated Between the ceramic plates, the ceramic plates are placed in a high-temperature furnace for compression molding, and cooled to room temperature to obtain a manganese dioxide-conductive polypropylene composite anode plate; 所述步骤2和步骤3中压制成型所施加的压力为500~6000pa;The pressure applied by the compression molding in the steps 2 and 3 is 500-6000pa; 所述步骤2和步骤3中高温炉的温度为100~250℃,陶瓷板置于高温炉中时间为5~60min;In the steps 2 and 3, the temperature of the high-temperature furnace is 100-250° C., and the time for placing the ceramic plate in the high-temperature furnace is 5-60 minutes; 所述步骤2中平铺于两面陶瓷板之间的混合粉末厚度为5~12mm;In the step 2, the thickness of the mixed powder spread between the two ceramic plates is 5-12 mm; 所述步骤3中位于陶瓷板之间的结构依次为二氧化锰层、导电聚丙烯板、二氧化锰层;The structures located between the ceramic plates in the step 3 are a manganese dioxide layer, a conductive polypropylene plate, and a manganese dioxide layer in sequence; 所述步骤1中高温炉具体为箱式炉;The high temperature furnace in the step 1 is specifically a box furnace; 所述步骤1中聚丙烯粉末和铜粉的粒度均为50~400目。In the step 1, the particle sizes of the polypropylene powder and the copper powder are both 50-400 mesh. 2.根据权利要求1所述的一种二氧化锰-导电聚丙烯复合阳极板的制备方法,其特征在于,所述步骤2和步骤3中的陶瓷板上均喷涂有硅油脱模剂。2 . The method for preparing a manganese dioxide-conductive polypropylene composite anode plate according to claim 1 , wherein the ceramic plates in the steps 2 and 3 are all sprayed with a silicone oil release agent. 3 .
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