Production process of thermal conductive silicone mud using waste materials

Abstract

The present invention relates to a production process for producing thermal silica gel mud using waste materials in the field of production process of thermal silica gel mud, comprising the following steps: a first step of material preparation, collecting thermal silica gel mud waste and thermal silica gel sheet waste, a second step of separating the waste materials, a third step of refining, wherein the operator can appropriately adjust the ratio of thermal silica gel mud waste and thermal silica gel sheet waste according to demand, and assist in turning the thermal silica gel mud waste and thermal silica gel sheet waste to fully mix them, and a fourth step of packaging. The raw material cost is low and can be recovered and reused, the production process is simple, the cost of raw materials and human resources are not high, and only one step of mixing is required to package them into finished products, the process is simple, and compared with the traditional process of producing thermal silica gel mud, the terminal price of the mixed thermal silica gel mud manufactured by recycling and reproducing is lower, and the terminal price is only about one-sixth of that of the traditional thermal silica gel mud, and is suitable for large-scale promotion and application to various application fields to reduce the terminal price of each finished product.

Description

Technical Field

[0001] The invention relates to the field of production technology of thermal silica gel mud, and in particular to a production technology of thermal conductive silica gel mud manufactured by using waste materials. Background Art

[0002] Thermal conductive silicone, also known as thermal conductive glue, thermal conductive silicone rubber, etc., is a silicone made of organic silicone as the main body, with fillers, thermal conductive materials and other polymer materials added. It has good thermal conductivity and electrical insulation properties, and its non-solidification and non-conductive properties can avoid risks such as circuit short circuits.

[0003] Thermal conductive silicone has a wide range of applications, including LED lighting, wireless chargers, graphics cards, mobile phone back clips, chips, smart speakers, routers, set-top boxes, navigation systems, notebooks, car batteries, power modules, drones, learning machines and other electronic products.

[0004] There are currently two main methods for producing thermally conductive silicone sheets: one is to use a solid rubber compound (solid silicone) to press and process the thermally conductive silicone sheet using a mold. The product material produced by this process is vulcanized with peroxide and requires a multi-layer production process including rubber mixing, refining, trimming, weighing, molding, tearing off flash, and vulcanization. The main features of this technology are better control of the quality of the finished product, high quality stability, and low cost. The other is liquid silicone rubber injection molding products. This process is directly produced using a liquid silicone rubber injection molding machine. After the machine is installed, the entire material flow is carried out in a sealed state, without the need for human intervention and unaffected by the production environment. In addition, the material uses platinum as a vulcanizing agent, which has excellent environmental performance. This technology has high production efficiency, but it is difficult to pre-configure the ingredients and the product performance cannot be changed midway.

[0005] Both of the above-mentioned production processes are relatively complicated, requiring multiple steps from raw materials to finished products. Production is difficult and requires the cooperation of various large-scale equipment. At the same time, the rubber refining process also requires the addition of various chemical materials to change the properties of silicone. As a result, the overall manufacturing cost of thermal conductive silicone mud and thermal conductive silicone sheet remains high, thus affecting the cost of the end product. Summary of the Invention

[0006] The purpose of the present invention is to solve the above defects and provide a production process for manufacturing thermal conductive silicone mud using waste materials, which can be reproduced by recycling waste materials, thereby significantly reducing the production cost of thermal conductive silicone mud and solving the technical problem of high cost of producing thermal conductive silicone mud in the existing technology.

[0007] The object of the present invention is achieved in the following ways:

[0008] The production process of making thermal conductive silicone mud using waste materials includes the following steps:

[0009] The first step is to prepare materials and collect waste thermal conductive silicone mud. The waste thermal conductive silicone mud comes from the scraps left over from the production of raw materials and recycled second-hand thermal conductive silicone mud. Collect waste thermal conductive silicone sheets. The waste thermal conductive silicone sheets come from the second-hand thermal conductive silicone sheets recycled from the scraps left over from the production of raw materials.

[0010] The second step is to separate the waste and prepare an open plastic purifying machine. The rear roller of the open plastic purifying machine is fixed and cannot be adjusted. The front roller of the open plastic purifying machine can be adjusted by manual or electric horizontal movement back and forth. The front roller of the open plastic purifying machine is adjusted to a position close to the rear roller. The operator puts the thermal conductive silicone sheet waste between the rear roller and the front roller of the open plastic purifying machine. The rear roller and the front roller roll in opposite directions. During the rolling process, the silicone in the thermal conductive silicone sheet waste can be pressed onto the surface of the rear roller and / or the front roller, so that the release film of the thermal conductive silicone sheet waste is detached. The operator removes the detached release film and uses tools to remove the thermal conductive silicone adhered to the surface of the rear roller and / or the front roller. The thermal conductive silicone removed at this time is relatively soft thermal conductive silicone.

[0011] The third step is to start refining. The thermally conductive silicone mud waste is a relatively hard thermally conductive silicone. The operator puts the thermally conductive silicone mud waste and the thermally conductive silicone taken out in the second step between the rear roller and the front roller of the open plastic refining machine. The distance between the front roller and the rear roller can be appropriately adjusted according to the amount put in. During this period, the operator can appropriately adjust the ratio of the thermally conductive silicone mud waste and the thermally conductive silicone sheet waste according to needs, and assist in turning the thermally conductive silicone mud waste and the thermally conductive silicone sheet waste to fully mix. Through the continuous rolling of the rear roller and the front roller, the thermally conductive silicone mud waste and the thermally conductive silicone sheet waste are evenly mixed, and the thermally conductive silicone mud waste and the thermally conductive silicone sheet waste are subjected to strong shearing action to achieve the purpose of refining. After 8-30 minutes of refining, the mixed thermally conductive silicone mud is made;

[0012] The fourth step is packaging. The operator uses tools to remove the mixed thermal conductive silicone mud stuck on the surface of the rear roller and / or front roller, and packs it in bags.

[0013] Furthermore, the mass fraction of the thermal conductive silicone mud waste is 65-95 parts, and the mass fraction of the thermal conductive silicone sheet waste is 5-20 parts.

[0014] Furthermore, the rear roller and the front roller need to be continuously heated during the rolling process.

[0015] The beneficial effects of the present invention are as follows: thermally conductive silicone mud waste and thermally conductive silicone sheet waste are used to make mixed thermally conductive silicone mud, and both thermally conductive silicone mud waste and thermally conductive silicone sheet waste can be obtained through scraps and recycled second-hand waste, the raw material cost is low, and can be recovered and reused, and the waste can be directly separated by an open plastic refining machine after recycling, and the release film of the thermally conductive silicone sheet waste is separated, and then the mixing is completed directly by the open plastic refining machine, and the relatively soft thermally conductive silicone and the relatively hard thermally conductive silicone are continuously rolled and mixed to form mixed thermally conductive silicone mud, the production process is simple, the raw material and human resource costs are not high, and only one step of mixing is required to package it into a finished product, the process is simple, and no additional materials need to be added, and compared with the traditional process for producing thermally conductive silicone mud, the terminal price of the mixed thermally conductive silicone mud manufactured by recycling and reproducing is lower, and the terminal price is only about one-sixth of that of traditional thermally conductive silicone mud, and it is suitable for large-scale promotion and application in various application fields to reduce the terminal price of each finished product. DETAILED DESCRIPTION

[0016] The present invention is described in further detail below in conjunction with specific embodiments.

[0017] The production process of using waste materials to manufacture thermal conductive silica gel mud in this embodiment includes the following steps:

[0018] The first step is to prepare the materials. Collect waste thermal conductive silicone mud, which comes from scraps left over from raw material production and recycled second-hand thermal conductive silicone mud. Collect waste thermal conductive silicone sheet, which comes from scraps left over from raw material production and recycled second-hand thermal conductive silicone sheet. Scraps of thermal conductive silicone mud and thermal conductive silicone sheet can be recycled at the manufacturer. Since all manufacturers treat scrap powder as waste, the recycling cost of scrap is relatively low. Second-hand thermal conductive silicone mud and second-hand thermal conductive silicone sheet are also waste products, so the recycling cost is also relatively low.

[0019] The second step is to separate the waste. Since the thermal conductive silicone sheet waste will be stuck with release film, the release film needs to be separated first. Prepare an open plastic refining machine. The rear roller of the open plastic refining machine is fixed and cannot be adjusted. The front roller of the open plastic refining machine can be adjusted by manual or electric horizontal movement back and forth. Adjust the front roller of the open plastic refining machine to a position close to the rear roller. The operator puts the thermal conductive silicone sheet waste between the rear roller and the front roller of the open plastic refining machine. The rear roller and the front roller roll in opposite directions. During the rolling process, the silicone in the thermal conductive silicone sheet waste can be pressed to the surface of the rear roller and / or the front roller, so that the release film of the thermal conductive silicone sheet waste is detached, and the operator removes the detached release film. The operator uses tools to remove the thermal conductive silicone stuck to the surface of the rear roller and / or the front roller. The thermal conductive silicone removed at this time is relatively soft thermal conductive silicone.

[0020] The third step is to start refining. The thermal conductive silicone mud waste is relatively hard thermal conductive silicone. The operator puts the thermal conductive silicone mud waste and the thermal conductive silicone taken out in the second step between the rear roller and the front roller of the open plastic refining machine. The distance between the front roller and the rear roller can be adjusted appropriately according to the amount put in. During this period, in the second step, the operator does not need to take out the thermal conductive silicone glued on the surface of the rear roller and / or the front roller, and can directly put the relatively hard thermal conductive silicone between the rear roller and the front roller. The operator can adjust the ratio of thermal conductive silicone mud waste and thermal conductive silicone sheet waste as needed. The mass fraction of relatively hard thermal conductive silicone mud waste can be adjusted to 90 parts, and the mass fraction of relatively soft thermal conductive silicone sheet waste can be adjusted to 10 parts, and auxiliary turning is performed to fully mix the thermal conductive silicone mud waste and thermal conductive silicone sheet waste. The rear roller and the front roller need to be continuously heated during the rolling process. Through the continuous rolling of the rear roller and the front roller, the thermal conductive silicone mud waste and the thermal conductive silicone sheet waste are evenly mixed, and the thermal conductive silicone mud waste and the thermal conductive silicone sheet waste are subjected to strong shearing action to achieve the purpose of mixing. After 8-30 minutes of mixing, the mixed thermal conductive silicone mud is made.

[0021] The fourth step is packaging. The operator uses tools to remove the mixed thermal conductive silicone mud stuck on the surface of the rear roller and / or front roller, and packs it in bags.

[0022] The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific implementation of the present invention should not be considered to be limited to these descriptions. For those skilled in the art of the present invention, several simple deductions or substitutions can be made without departing from the concept of the present invention, and all of these should be considered as the scope of protection of the present invention.

Claims

1. The production process of using waste materials to make thermal conductive silicone mud is characterized by: The following steps are involved: The first step is to prepare materials and collect waste thermal conductive silicone mud. The waste thermal conductive silicone mud comes from the scraps left over from the production of raw materials and recycled second-hand thermal conductive silicone mud. Collect waste thermal conductive silicone sheets. The waste thermal conductive silicone sheets come from the second-hand thermal conductive silicone sheets recycled from the scraps left over from the production of raw materials. The second step is to separate the waste and prepare an open plastic purifying machine. The rear roller of the open plastic purifying machine is fixed and cannot be adjusted. The front roller of the open plastic purifying machine can be adjusted by manual or electric horizontal movement back and forth. The front roller of the open plastic purifying machine is adjusted to a position close to the rear roller. The operator puts the thermal conductive silicone sheet waste between the rear roller and the front roller of the open plastic purifying machine. The rear roller and the front roller roll in opposite directions. During the rolling process, the silicone in the thermal conductive silicone sheet waste can be pressed onto the surface of the rear roller and / or the front roller, so that the release film of the thermal conductive silicone sheet waste is detached. The operator removes the detached release film and uses tools to remove the thermal conductive silicone adhered to the surface of the rear roller and / or the front roller. The thermal conductive silicone removed at this time is relatively soft thermal conductive silicone. The third step is to start refining. The thermally conductive silicone mud waste is a relatively hard thermally conductive silicone. The operator puts the thermally conductive silicone mud waste and the thermally conductive silicone taken out in the second step between the rear roller and the front roller of the open plastic refining machine. The distance between the front roller and the rear roller can be appropriately adjusted according to the amount put in. During this period, the operator can appropriately adjust the ratio of the thermally conductive silicone mud waste and the thermally conductive silicone sheet waste according to needs, and assist in turning the thermally conductive silicone mud waste and the thermally conductive silicone sheet waste to fully mix. Through the continuous rolling of the rear roller and the front roller, the thermally conductive silicone mud waste and the thermally conductive silicone sheet waste are evenly mixed, and the thermally conductive silicone mud waste and the thermally conductive silicone sheet waste are subjected to strong shearing action to achieve the purpose of refining. After 8-30 minutes of refining, the mixed thermally conductive silicone mud is made; The fourth step is packaging. The operator uses tools to remove the mixed thermal conductive silicone mud stuck on the surface of the rear roller and / or front roller, and packs it in bags.

2. The production process for producing thermal conductive silica gel using waste materials according to claim 1, characterized in that: The mass fraction of the thermal conductive silica gel waste is 65-95 parts, and the mass fraction of the thermal conductive silica gel sheet waste is 5-20 parts.

3. The production process for producing thermal conductive silica gel using waste materials according to claim 1, characterized in that: The rear roller and the front roller need to be continuously heated during the rolling process.