阅读说明：本技术 一种自粘式云母胶粘带的加工方法 (processing method of self-adhesive mica adhesive tape ) 是由 乐家标 于 2019-08-30 设计创作，主要内容包括：本发明涉及一种自粘式云母胶粘带的加工方法,包括以下步骤：步骤1)、配置胶粘剂；步骤2)、准备云母带,在云母带的一面涂布一层胶粘剂；步骤3)、将涂布有胶粘剂的云母带送入烘干烘道烘干,烘干烘道内的温度为桥式温度,烘干烘道包括第一节烘道、第二节烘道、第三节烘道,第一节烘道的温度为70-80℃、第二节烘道的温度为100-110℃、第三节烘道的温度为80-90℃；涂布有胶粘剂的云母带在烘干烘道内依次经第一节烘道、第二节烘道、第三节烘道加热烘干,云母带在烘干烘道内的行进速度为30-40米/分钟；经烘干烘道烘干得到自粘式云母胶粘带。通过本发明,制得的自粘式云母胶粘带,云母胶粘带与云母胶粘带之间缠绕固定,具有很大的市场应用与推广价值。(the invention relates to a processing method of a self-adhesive mica adhesive tape, which comprises the following steps: step 1), preparing an adhesive; step 2), preparing a mica tape, and coating a layer of adhesive on one surface of the mica tape; step 3), conveying the mica tape coated with the adhesive into a drying tunnel for drying, wherein the temperature in the drying tunnel is bridge type temperature, the drying tunnel comprises a first drying tunnel, a second drying tunnel and a third drying tunnel, the temperature of the first drying tunnel is 70-80 ℃, the temperature of the second drying tunnel is 100-110 ℃, and the temperature of the third drying tunnel is 80-90 ℃; the mica tape coated with the adhesive is heated and dried in a drying channel sequentially through a first drying channel, a second drying channel and a third drying channel, and the advancing speed of the mica tape in the drying channel is 30-40 m/min; and drying the mixture by a drying channel to obtain the self-adhesive mica adhesive tape. The self-adhesive mica adhesive tape prepared by the invention is wound and fixed with the mica adhesive tape, and has great market application and popularization values.)

1. a processing method of a self-adhesive mica adhesive tape is characterized by comprising the following steps:

Step 1), adhesive preparation:

(1) Weighing 100 parts of high-temperature-resistant organic silicon adhesive and 230 parts of dimethylbenzene, and mixing to obtain a first mixture; wherein the solid content of the high-temperature resistant organic silicon adhesive is 60 percent;

(2) weighing 1-3 parts of curing agent dibenzoyl peroxide, dissolving 1-3 parts of dibenzoyl peroxide by using 0.5 part of solvent xylene to obtain dissolved dibenzoyl peroxide, adding the dissolved dibenzoyl peroxide into the first mixture, and uniformly mixing to obtain an adhesive with the solid content of 18%;

step 2), preparing a mica tape, and coating a layer of adhesive on one surface of the mica tape;

step 3), conveying the mica tape coated with the adhesive into a drying tunnel for drying, wherein the temperature in the drying tunnel is bridge type temperature, the drying tunnel comprises a first drying tunnel, a second drying tunnel and a third drying tunnel, the temperature of the first drying tunnel is 70-80 ℃, the temperature of the second drying tunnel is 100-110 ℃, and the temperature of the third drying tunnel is 80-90 ℃; the mica tape coated with the adhesive is heated and dried in a drying channel sequentially through a first drying channel, a second drying channel and a third drying channel, and the advancing speed of the mica tape in the drying channel is 30-40 m/min; and drying the mixture by a drying channel to obtain the self-adhesive mica adhesive tape.

2. the processing method of the self-adhesive mica tape according to claim 1, wherein the mica tape is coated with the adhesive in the step 1), and the thickness of the adhesive layer of the adhesive is 25 μm.

3. The processing method of the self-adhesive mica tape according to claim 1, further comprising a step 4) of rolling, cutting, inspecting, packaging and warehousing the self-adhesive mica tape obtained in the step 3).

Technical Field

the invention relates to a processing method of a self-adhesive mica tape, belonging to the technical field of mica tapes.

Background

The mica tape is a fire-resistant insulating material commonly used in the production of special cables, and the service performance of the special cables is directly or indirectly influenced by the quality of the mica tape. The mica tapes in the existing market are not adhesive, and when the mica tapes are wound in the cable, the mica tapes need to be wound and fixed at a distance from one end of the cable, so that the mica tapes are prevented from loosening.

Disclosure of Invention

The invention aims to provide a processing method of a self-adhesive mica adhesive tape aiming at the defects of the prior art, the self-adhesive mica adhesive tape is not required to be wound and fixed by an adhesive tape during winding, and the mica adhesive tape are wound and fixed, so that the mica adhesive tape is prevented from loosening.

The invention aims to realize the purpose, and the processing method of the self-adhesive mica adhesive tape is characterized by comprising the following steps:

Step 1), adhesive preparation:

(1) weighing 100 parts of high-temperature-resistant organic silicon adhesive and 230 parts of dimethylbenzene, and mixing to obtain a first mixture; wherein the solid content of the high-temperature resistant organic silicon adhesive is 60 percent;

(2) Weighing 1-3 parts of curing agent dibenzoyl peroxide, dissolving 1-3 parts of dibenzoyl peroxide by using 0.5 part of solvent xylene to obtain dissolved dibenzoyl peroxide, adding the dissolved dibenzoyl peroxide into the first mixture, and uniformly mixing to obtain an adhesive with the solid content of 18%;

Step 2), preparing a mica tape, and coating a layer of adhesive on one surface of the mica tape;

Step 3), conveying the mica tape coated with the adhesive into a drying tunnel for drying, wherein the temperature in the drying tunnel is bridge type temperature, the drying tunnel comprises a first drying tunnel, a second drying tunnel and a third drying tunnel, the temperature of the first drying tunnel is 70-80 ℃, the temperature of the second drying tunnel is 100-110 ℃, and the temperature of the third drying tunnel is 80-90 ℃; the mica tape coated with the adhesive is heated and dried in a drying channel sequentially through a first drying channel, a second drying channel and a third drying channel, and the advancing speed of the mica tape in the drying channel is 30-40 m/min; and drying the mixture by a drying channel to obtain the self-adhesive mica adhesive tape.

In the step 1), the mica tape is coated with the adhesive, and the thickness of the adhesive layer of the adhesive is 25 micrometers.

and 4) rolling, cutting, inspecting, packaging and warehousing the self-adhesive mica adhesive tape obtained in the step 3).

The processing method of the self-adhesive mica adhesive tape is characterized in that one side of the conventional arbitrary mica tape is coated with a layer of adhesive, and then the mica tape is sent into a drying channel to be dried.

Wherein the adhesive preparation comprises the following steps:

1. 100 parts of high-temperature resistant organic silicon adhesive with solid content of 60 percent are taken;

2. Weighing 1-3 parts of curing agent dibenzoyl peroxide, and dissolving 1-3 parts of dibenzoyl peroxide by using 0.5 part of solvent xylene to obtain dissolved dibenzoyl peroxide;

3. Weighing 230 parts of dimethylbenzene and adding the dimethylbenzene into the step 1;

4. and (3) adding the step (2) into the step (1), and uniformly stirring to prepare the adhesive with the solid content of 18%.

the mica tape can be placed on a discharging shaft of an adhesive tape machine and is glued through a glue groove (the adhesive is poured into the glue groove): controlling the thickness of the adhesive layer at 25 mu m, controlling the speed of the line at 30-40 m/min, and mechanically drying and winding the adhesive tape, wherein the mechanical drying tunnel of the adhesive tape is divided into a bridge type temperature, the temperature of the first drying tunnel is 70-80 ℃, the temperature of the second drying tunnel is 100-110 ℃, and the temperature of the third drying tunnel is 80-90 ℃; then, the dried mica composite tape adhesive tape is rolled, cut, inspected, packaged and put in storage.

The peel strength of the self-adhesive mica adhesive tape prepared by the invention is as follows: (N/25mm) 6.5-7.0. When in use, the mica adhesive tape and the mica adhesive tape are wound and fixed, thereby having great market application and popularization values.

Detailed Description

A processing method of a self-adhesive mica adhesive tape comprises the following steps:

step 1), adhesive preparation:

(1) Weighing 100 parts of high-temperature-resistant organic silicon adhesive and 230 parts of dimethylbenzene, and mixing to obtain a first mixture; wherein the solid content of the high-temperature resistant organic silicon adhesive is 60 percent;

(2) weighing 1-3 parts of curing agent dibenzoyl peroxide, dissolving 1-3 parts of dibenzoyl peroxide by using 0.5 part of solvent xylene to obtain dissolved dibenzoyl peroxide, adding the dissolved dibenzoyl peroxide into the first mixture, and uniformly mixing to obtain an adhesive with the solid content of 18%;

step 2), preparing a mica tape, and coating a layer of adhesive on one surface of the mica tape, wherein the thickness of the adhesive layer of the adhesive is 25 mu m;

step 3), conveying the mica tape coated with the adhesive into a drying tunnel for drying, wherein the temperature in the drying tunnel is bridge type temperature, the drying tunnel comprises a first drying tunnel, a second drying tunnel and a third drying tunnel, the temperature of the first drying tunnel is 70-80 ℃, the temperature of the second drying tunnel is 100-110 ℃, and the temperature of the third drying tunnel is 80-90 ℃; the mica tape coated with the adhesive is heated and dried in a drying channel sequentially through a first drying channel, a second drying channel and a third drying channel, and the advancing speed of the mica tape in the drying channel is 30-40 m/min; drying the mica tape by a drying channel to obtain a self-adhesive mica tape;

and 4), rolling, cutting, inspecting, packaging and warehousing the self-adhesive mica adhesive tape obtained in the step 3).