CN102304877B - Method for preparing wax paper for battery from vegetable wax - Google Patents

Abstract

The invention belongs to the technical field of preparation of wax paper for batteries, and particularly relates to a method for preparing wax paper for batteries by using vegetable wax, which comprises the following preparation steps: wax melting treatment; (b) frying wax; (c) dewaxing; (d) and (5) drying to obtain the finished product of the waxed paper for the battery. The invention has the following advantages: (1) the vegetable wax is adopted as a raw material, wherein the vegetable wax is environment-friendly and easy to obtain, and the cost is lower than that of paraffin; (2) the melting time of the vegetable wax raw material is about 1/3 of the melting time of the paraffin, so that the production time is greatly reduced; (3) the preparation process adopts automatic equipment for production, and has high automation degree and high production efficiency; (4) the vegetable wax has strong weather resistance, and the prepared wax paper for the cell is used as a sealing accessory of the cell, so that the sealing performance is good.

Description

Method for preparing battery wax paper from vegetable wax

technical field

The invention belongs to the technical field of preparing wax paper for batteries, in particular to a method for preparing wax paper for batteries from plant wax.

Background technique

Batteries generally need to be sealed with wax paper. The wax paper for batteries is also called fried wax paper money. Traditional battery wax paper uses paraffin wax as the raw material. Paraffin wax contains not only a large amount of saturated hydrocarbons, but also heavy metal organics such as sulfide and lead. , causing certain pollution to the environment; on the other hand, paraffin comes from petroleum, which is a non-renewable energy source. With the widespread use of batteries, the supply of paraffin wax is in short supply, causing the price of paraffin wax to become higher and higher. The current price of paraffin wax is vegetable wax 2 to 3 times the price of battery wax paper, the production cost of battery wax paper is high. At the same time, due to the shortcomings of paraffin wax such as high melting point and long melting time, the production time for producing wax paper for batteries is relatively long. Moreover, the softening point of paraffin wax is more than 15°C lower than the melting point, so the prepared wax paper for batteries is easily deformed in a high temperature environment, resulting in poor use effect. In addition, the existing method for preparing wax paper for batteries has complex operations, high manual operation intensity and low production efficiency.

Contents of the invention

The object of the present invention is to address the deficiencies of the prior art, and provide a method for preparing battery wax paper from vegetable wax, the raw material of which is environmentally friendly and easy to obtain, reduces production time and cost; and has a high degree of automation and high production efficiency.

The present invention is achieved by the following techniques.

A method for preparing wax paper for batteries from vegetable wax, comprising the following preparation steps:

(a) Wax melting treatment: Put the vegetable wax raw material into the wax melting furnace, set the temperature of the wax melting furnace to 140°C~160°C, and melt the vegetable wax raw material to a molten state;

(b) Wax frying treatment: Put the battery paper money into the wax melting furnace and soak for 1 to 2 minutes;

(c) Dewaxing treatment: take the battery paper money treated in step (b) out of the wax melting furnace, put it into a centrifuge, and centrifuge for 1 to 2 minutes to remove the vegetable wax raw material that is not combined with the battery paper money , the first product of wax paper for batteries is obtained;

(d) Drying treatment: Take out the preliminary product of waxed paper for batteries prepared in step (c) from the centrifuge, spread it out and dry it in the air to obtain the finished product of waxed paper for batteries.

Wherein, in the step (a) wax melting treatment, the melting point of the vegetable wax raw material is 50°C-58°C.

Further, in the step (a) wax melting treatment, the melting point of the vegetable wax raw material is 50°C.

Wherein, in the step (a) in the wax melting treatment, the temperature of the wax melting furnace is set at 150° C. to 155° C.

Wherein, in the step (a) wax melting treatment, the melting time of the vegetable wax raw material is 10 minutes to 12 minutes.

Wherein, in the dewaxing treatment of the step (c), the rotating speed of the centrifuge is 100 r/min to 130 r/min.

Wherein, the vegetable wax raw material is one of palm wax, candelilla wax, rice bran wax, sugarcane wax, laurel wax, castor bean wax, jojoba wax, lacquer wax, carnauba wax, and Douglas fir wax Or more than one mixture in any proportion. The melting point of palm wax is usually 50°C~58°C, but the difference between freezing point and melting point is 1°C~2°C, and the softening point and melting point are basically the same. Therefore, palm wax has high resistance to hot spots and can effectively prevent deformation under high temperature conditions.

Wherein, in parts by weight, the vegetable wax raw material is composed of 30-50 parts of palm wax, 15-30 parts of candelilla wax, and 30-50 parts of rice bran wax.

Wherein, in parts by weight, the vegetable wax raw material is composed of 70-85 parts of palm wax, 15-25 parts of polymer, and 0-10 parts of antioxidant; the polymer is ethylene-propylene rubber, polyethylene wax 1. A mixture of one or more than one polyisobutylene mixed in any proportion; the average molecular weight of the polymer is 500~10000. Antioxidants are aromatic amine antioxidants.

Wherein, the finished battery wax paper product is used as an accessory for battery sealing.

Wherein, the thickness of the finished battery wax paper is 0.8mm-1.5mm.

The beneficial effect of the present invention is: a kind of vegetable wax of the present invention prepares the method for battery wax paper, comprises the following preparation steps: (a) wax-melting treatment: put vegetable wax raw material into wax-melting furnace, set the temperature of wax-melting furnace as 140 ℃ ~ 160 ℃, so that the vegetable wax raw material is melted to a molten state; (b) wax frying treatment: put the battery paper money into the wax melting furnace, soak for 1 minute to 2 minutes; (c) dewaxing treatment: put the step (b ) The treated battery paper money is taken out from the wax-melting furnace, put into a centrifuge, and centrifuged for 1 to 2 minutes to separate the vegetable wax raw material that has not been combined with the battery paper money to obtain a preliminary product of battery wax paper; (d ) Drying treatment: take out the preliminary product of battery wax paper prepared in step (c) from the centrifuge, spread it out and dry it in the air, and obtain the finished product of battery wax paper.

A method for preparing wax paper for batteries from vegetable wax of the present invention has the following advantages: (1) Vegetable wax raw material is used, and the vegetable wax is environmentally friendly and easy to obtain, and the cost is lower than that of paraffin wax; (2) The raw material of vegetable wax is The melting time is about 1/3 of the melting time of paraffin wax, which greatly reduces the production time; (3) The preparation process is produced by automatic equipment, with a high degree of automation and high production efficiency; (4) Vegetable wax has strong weather resistance, and the prepared The pool uses wax paper as an accessory for battery sealing, which is not easy to deform and has good sealing performance.

Detailed ways

The present invention will be further described below with specific examples, but the present invention is not limited by the following examples.

Example 1.

A method for preparing wax paper for batteries from vegetable wax, comprising the following preparation steps: (a) wax melting treatment: putting vegetable wax raw materials into a wax melting furnace, setting the temperature of the wax melting furnace at 140°C to 160°C, making the vegetable wax raw materials Melt to a molten state; (b) Wax frying treatment: Put the battery paper money into the wax melting furnace and soak for 1 to 2 minutes; (c) Dewaxing treatment: Put the battery paper money treated in step (b) from the melting wax Take it out from the furnace, put it into a centrifuge, and centrifuge for 1 to 2 minutes to separate the vegetable wax raw material that is not combined with the battery paper money, and obtain the preliminary product of the battery wax paper; (d) drying treatment: the step (c) The prepared preliminary product of the waxed paper for the battery is taken out from the centrifuge, spread out and dried to obtain the finished product of the waxed paper for the battery. The vegetable wax raw material is palm wax, and the melting point of the palm wax is 50°C-58°C.

Example 2.

A method for preparing wax paper for batteries from vegetable wax, comprising the following preparation steps: (a) wax melting treatment: putting vegetable wax raw materials into a wax melting furnace, setting the temperature of the wax melting furnace to 150° C., and melting the vegetable wax raw materials until melting State; (b) Wax frying treatment: Put the battery paper money into the wax melting furnace and soak for 1 to 2 minutes; (c) Dewaxing treatment: Take the battery paper money treated in step (b) out of the wax melting furnace , put it into a centrifuge, and centrifuge for 1 to 2 minutes to separate the vegetable wax raw material that is not combined with the battery paper money, and obtain the preliminary product of the battery wax paper; (d) drying treatment: the obtained in step (c) The preliminary product of the waxed paper for the battery is taken out from the centrifuge, and spread out to dry at room temperature to obtain the finished product of the waxed paper for the battery.

In the step (a) wax melting treatment, the melting point of the vegetable wax raw material is 50° C., and the melting time of the vegetable wax raw material is 10 minutes. The vegetable wax raw material is palm wax. In the dewaxing treatment of the step (c), the rotating speed of the centrifuge is 130 r/min.

The finished battery wax paper prepared in this example has a thickness of 0.85 mm to 0.95 mm and is used as an accessory for battery sealing.

Example 3.

A method for preparing wax paper for batteries from vegetable wax, comprising the following preparation steps: (a) wax melting treatment: putting vegetable wax raw materials into a wax melting furnace, setting the temperature of the wax melting furnace to 155° C., and melting the vegetable wax raw materials until melting State; (b) Wax frying treatment: Put the battery paper money into the wax melting furnace and soak for 1 to 2 minutes; (c) Dewaxing treatment: Take the battery paper money treated in step (b) out of the wax melting furnace , put it into a centrifuge, and centrifuge for 1 to 2 minutes to separate the vegetable wax raw material that is not combined with the battery paper money, and obtain the preliminary product of the battery wax paper; (d) drying treatment: the obtained in step (c) The preliminary product of the waxed paper for the battery is taken out from the centrifuge, spread out and dried to obtain the finished product of the waxed paper for the battery.

In the step (a) wax melting treatment, the melting point of the vegetable wax raw material is 55° C., and the melting time of the vegetable wax raw material is 12 minutes. In parts by weight, the vegetable wax raw material is composed of 30 parts of palm wax, 20 parts of candelilla wax and 50 parts of rice bran wax. In the dewaxing treatment of the step (c), the rotating speed of the centrifuge is 100 r/min.

The finished battery wax paper prepared in this example has a thickness of 1.10 mm to 1.20 mm and is used as an accessory for battery sealing.

Example 4.

A method for preparing wax paper for batteries from vegetable wax, comprising the following preparation steps: (a) wax melting treatment: putting vegetable wax raw materials into a wax melting furnace, setting the temperature of the wax melting furnace to 140° C., and melting the vegetable wax raw materials until melting State; (b) Wax frying treatment: Put the battery paper money into the wax melting furnace and soak for 1 to 2 minutes; (c) Dewaxing treatment: Take the battery paper money treated in step (b) out of the wax melting furnace , put it into a centrifuge, and centrifuge for 1 to 2 minutes to separate the vegetable wax raw material that is not combined with the battery paper money, and obtain the preliminary product of the battery wax paper; (d) drying treatment: the obtained in step (c) The preliminary product of the waxed paper for the battery is taken out from the centrifuge, spread out and dried to obtain the finished product of the waxed paper for the battery.

In the wax-melting treatment in the step (a), the melting point of the vegetable wax raw material is 53° C., and the melting time of the vegetable wax raw material is 11 minutes. In parts by weight, the vegetable wax raw material is composed of 50 parts of palm wax, 15 parts of candelilla wax and 35 parts of rice bran wax. In the dewaxing treatment of the step (c), the rotating speed of the centrifuge is 110 r/min.

The finished battery wax paper prepared in this example has a thickness of 1.10 mm to 1.20 mm and is used as an accessory for battery sealing.

Example 5.

A method for preparing wax paper for batteries from vegetable wax, comprising the following preparation steps: (a) wax melting treatment: putting vegetable wax raw materials into a wax melting furnace, setting the temperature of the wax melting furnace to 160 ° C, and melting the vegetable wax raw materials until they melt State; (b) Wax frying treatment: Put the battery paper money into the wax melting furnace and soak for 1 to 2 minutes; (c) Dewaxing treatment: Take the battery paper money treated in step (b) out of the wax melting furnace , put it into a centrifuge, and centrifuge for 1 to 2 minutes to separate the vegetable wax raw material that is not combined with the battery paper money, and obtain the preliminary product of the battery wax paper; (d) drying treatment: the obtained in step (c) The preliminary product of the waxed paper for the battery is taken out from the centrifuge, and spread out to dry at room temperature to obtain the finished product of the waxed paper for the battery.

In the wax-melting treatment in the step (a), the melting point of the vegetable wax raw material is 58° C., and the melting time of the vegetable wax raw material is 12 minutes. Wherein, in parts by weight, the vegetable wax raw material is composed of 80 parts of palm wax, 15 parts of polymer, and 5 parts of antioxidant; the polymer is polyisobutylene; the average molecular weight of the polymer is 500-10000. The antioxidant is an aromatic amine antioxidant. In the step (c) dewaxing treatment, the rotational speed of the centrifuge is 115 r/min.

The finished battery wax paper prepared in this example has a thickness of 1.10 mm to 1.50 mm and is used as an accessory for battery sealing.

Example 6.

A method for preparing wax paper for batteries from vegetable wax, comprising the following preparation steps: (a) wax melting treatment: putting vegetable wax raw materials into a wax melting furnace, setting the temperature of the wax melting furnace to 155° C., and melting the vegetable wax raw materials until melting State; (b) Wax frying treatment: Put the battery paper money into the wax melting furnace and soak for 1 to 2 minutes; (c) Dewaxing treatment: Take the battery paper money treated in step (b) out of the wax melting furnace , put it into a centrifuge, and centrifuge for 1 to 2 minutes to separate the vegetable wax raw material that is not combined with the battery paper money, and obtain the preliminary product of the battery wax paper; (d) drying treatment: the obtained in step (c) The preliminary product of the waxed paper for the battery is taken out from the centrifuge, and spread out to dry at room temperature to obtain the finished product of the waxed paper for the battery.

In the step (a) wax melting treatment, the melting point of the vegetable wax raw material is 55° C., and the melting time of the vegetable wax raw material is 12 minutes. Wherein, in parts by weight, the vegetable wax raw material is composed of 75 parts of palm wax and 25 parts of polymer; the polymer is a mixture of 5 parts of ethylene-propylene rubber, 5 parts of polyethylene wax, and 15 parts of polyisobutylene; the polymer The average molecular weight is 500~10000. The antioxidant is an aromatic amine antioxidant. In the step (c) dewaxing treatment, the rotational speed of the centrifuge is 115 r/min.

The finished battery wax paper prepared in this example has a thickness of 1.10 mm to 1.50 mm and is used as an accessory for battery sealing.

The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, so all equivalent changes or modifications made according to the structure, features and principles described in the patent scope of the present invention should be Including within the scope of the patent application of the present invention.

Claims (7)

1. the method for a preparing wax paper for battery by using vegetable wax is characterized in that: comprise following preparation process:

(a) dewaxing is processed: the vegetable wax raw material is dropped in wax melter, and the temperature that wax melter is set is 140 ℃ ~ 160 ℃, and the vegetable wax raw material is melted to molten condition;

(b) fried wax is processed: battery is dropped in wax melter with paper money, soaked 1 minute ~ 2 minutes;

(c) dewaxing treatment: the battery after step (b) is processed takes out from wax melter with paper money, drops in centrifuge, and centrifugal treating 1 minute ~ 2 minutes does not make to break away from the vegetable wax raw material that battery is combined with paper money, makes battery with finished product at the beginning of paraffin paper;

(d) dry processing: the battery that step (c) is made takes out from centrifuge with the first finished product of paraffin paper, spreads out and dries, and makes battery paraffin paper finished product;

By weight, described vegetable wax raw material is by 70 parts ~ 85 parts of palm waxs, 15 parts ~ 25 parts, polymer, 0 ~ 10 part of composition of antioxidant; Described polymer is a kind of in EP rubbers, Tissuemat E, polyisobutene or mixture that more than one mix in any proportion.

2. the method for a kind of preparing wax paper for battery by using vegetable wax according to claim 1 is characterized in that: during described step (a) dewaxing was processed, the fusing point of vegetable wax raw material was 50 ℃ ~ 58 ℃.

3. the method for a kind of preparing wax paper for battery by using vegetable wax according to claim 2 is characterized in that: during described step (a) dewaxing was processed, the fusing point of vegetable wax raw material was 50 ℃.

4. the method for a kind of preparing wax paper for battery by using vegetable wax according to claim 1 is characterized in that: during described step (a) dewaxing was processed, the temperature that wax melter is set was 150 ℃ ~ 155 ℃.

5. the method for a kind of preparing wax paper for battery by using vegetable wax according to claim 4 is characterized in that: during described step (a) dewaxing was processed, the melting time of vegetable wax raw material was 10min ~ 12min.

6. the method for a kind of preparing wax paper for battery by using vegetable wax according to claim 1, it is characterized in that: in described step (c) dewaxing treatment, the rotating speed of centrifuge is 100 r/min ~ 130 r/min.

7. the method for according to claim 1 ~ 6 described a kind of preparing wax paper for battery by using vegetable waxes of any one is characterized in that: the battery that makes is with the accessory of paraffin paper finished product as battery seal.