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A kind of silica gel cold bonding process and the silica gel heating sheet prepared by this process

A silicone heating, silicone technology, applied in heating elements, ohmic resistance heating, ohmic resistance heating parts and other directions, to achieve the effect of high safety performance, low pressure and high precision

Active Publication Date: 2021-06-29
浙江丹亭新材料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the existing technology not only has high requirements for site and personnel, but also has certain requirements for environmental waste gas treatment, the first purpose of this application is to provide a silica gel cold bonding process, which has no harm to the environment , no waste gas, environmental protection and energy saving, non-toxic and harmless and high processing efficiency

Method used

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  • A kind of silica gel cold bonding process and the silica gel heating sheet prepared by this process
  • A kind of silica gel cold bonding process and the silica gel heating sheet prepared by this process
  • A kind of silica gel cold bonding process and the silica gel heating sheet prepared by this process

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preparation example

[0053] Preparation of heating film: The formula of heating film is: HDPE 20%, metallocene linear low density polyethylene 25%, polypropylene 30%, nano nickel powder 3%, AES fatty alcohol polyoxyethylene ether sodium sulfate industrial AES surfactant 0.2 %, multi-wall tubular carbon nanotubes 6.3%, graphene 0.5%, nano conductive carbon black powder 10%, PTC enhancer 5%. The preparation process of heating film: Step 1: Weigh HDPE, metallocene linear low density polyethylene and polypropylene according to the proportion, put the prepared HDPE, metallocene linear low density polyethylene and polypropylene into the dispersing machine, and heat at 25°C Mix for 5 minutes at 500 rpm; Step 2: Weigh PTC reinforcing agent, surfactant, nano-nickel powder, multi-wall tubular carbon nanotubes, graphene, and nano-conductive carbon black powder according to the proportion, and add them in sequence In the disperser, mix for 30 minutes at 25°C and 300 rpm; Step 3: put the material mixed in step...

Embodiment 1

[0063] refer to figure 1 , is a kind of silica gel heating sheet disclosed in the present application, comprising a heating film layer 1 as a core layer, an adhesive layer 2 is bonded to both sides of the heating film layer 1; a silica gel layer 3 is bonded to the adhesive layer 2; the heating film layer 1 is aluminum foil; the adhesive layer 2 is electronic liquid silicone; the silicone layer 3 is cooked rubber.

[0064] The processing technology of the silica gel heating sheet includes the following steps:

[0065] Step 1: Use a glue applicator to scrape and coat 0.4mm electronic liquid silicone on one surface of the aluminum foil;

[0066] Step 2: Use a cold laminator to compound the cooked rubber on the side of the 0.4mm electronic liquid silicone of the aluminum foil. The pressing temperature is 30.1°C, the pressure is 1000N, and the humidity is controlled at 60%;

[0067] Step 3: Use a glue applicator to scrape and coat 0.4mm electronic liquid silicone on the other sur...

Embodiment 2

[0070] The difference between embodiment 2 and embodiment 1 is that the heating film layer 1 is the heating film in the preparation example.

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Abstract

This application relates to the technical field of silica gel heat sealing processing, especially a silica gel cold bonding process and a silica gel heating sheet prepared by this process, a silica gel cold bonding process, which includes step 1: using a glue applicator to scrape a surface of the heating film Silicone coating; Step 2: Use a cold laminator to compound the cooked rubber on the silicone coated side of the heating film, pressing temperature: 30°C±2°C, pressure: 1000N; Step 3: Scratch coating on the other surface of the heating film Silica gel; step 4: use a cold laminator to compound the cooked rubber on the silica gel-coated side of the heating film, pressing temperature: 30°C±2°C, pressure: 1000N, to obtain the target product. The process has the effects of no harm to the environment, no waste gas, environmental protection and energy saving, non-toxic and harmless, and high processing efficiency. A silica gel heating sheet, including a heating film layer as a core layer, an adhesive layer is bonded to both sides of the heating film layer; the adhesive layer is bonded to a silica gel layer; the adhesive layer is electronic liquid silica gel or heat-conducting silica gel; good performance.

Description

technical field [0001] The application relates to the technical field of silica gel heat sealing processing, in particular to a silica gel cold bonding process and a silica gel heating sheet prepared by the process. Background technique [0002] Because the insulation and corrosion resistance of silicone heaters are very strong, and they can be customized according to customer requirements, more and more silicone heaters are used in industries such as automobiles and high-speed rail. The existing processing technology of silica gel heater is as follows: the vulcanization press is used for operation, the high temperature during high temperature vulcanization is 160°C~220°C, and the pressure of hot pressing is 2*10 4 N; The adhesive layer is made of high-temperature-resistant glue, which can withstand a temperature of 300°C; pressing method: pressing with a vulcanizing press. [0003] The disadvantage of the existing technology is: it has a destructive effect on the material ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B3/36H05B3/06B32B37/12B32B37/10
CPCB32B37/10B32B37/12H05B3/06H05B3/36H05B2203/017
Inventor 姜喜军邵敬彪
Owner 浙江丹亭新材料有限公司