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Preparation method of antistatic silicone rubber

A silicone rubber and antistatic technology, applied in the field of rubber, can solve problems such as poor compatibility, achieve good compatibility, improve bonding strength, and improve adhesion

Inactive Publication Date: 2018-12-04
INST OF FLEXIBLE ELECTRONICS TECH OF THU ZHEJIANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to address the problem of poor compatibility between silicone rubber and antistatic agents, and provide a method for preparing antistatic silicone rubber. The coating of electrostatic agent plays the role of permanent antistatic

Method used

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preparation example Construction

[0034] The preparation method of antistatic silicone rubber provided by the invention comprises:

[0035] S1, providing a silicone rubber, performing surface treatment on the silicone rubber, so that the surface of the silicone rubber has polar groups;

[0036] S2, coating a polyfunctional compound on the surface of the silicone rubber with a polar group to form a first coating, allowing the polyfunctional compound to react with the polar group to form a chemical bond;

[0037] S3, covering the surface of the first coating with an antistatic agent and a binder to form a second coating, allowing the binder to react with the multifunctional compound to form a chemical bond, and then curing to obtain an antistatic Silicone Rubber.

[0038] In step S1, there are many methods for surface treatment of silicone rubber, including solvent treatment, coupling agent treatment, flame treatment, ultraviolet light irradiation treatment, plasma surface treatment and the like. When choosing...

Embodiment 1

[0071] Place the silicone rubber sample in an ultraviolet ozone cleaning machine. The temperature of the ultraviolet ozone cleaning machine is 20°C. During the ultraviolet light irradiation process, the ultraviolet light has a wavelength of 100nm to 300nm and is irradiated for 10 minutes to obtain the surface-treated silicone rubber sample A1.

[0072] Prepare 1 part of 3-aminopropyltriethoxysilane, 5 parts of water, and 94 parts of ethanol solution, spray the solution on the surface of the treated silicone rubber sample A1, and the spraying amount is 0.1g / cm 2 Solution, heated at 70° C. for 3 minutes to obtain silicone rubber B1 with reactive groups grafted on the surface.

[0073] Mix epoxy resin glue A and glue B in a ratio of 3:1, add 2wt% octadecyl dimethyl hydroxyethyl quaternary ammonium nitrate, mix evenly, and coat it on silicone rubber B1. Electrostatic silicone rubber1.

Embodiment 2

[0075]Place the silicone rubber sample in an ultraviolet ozone cleaning machine. The temperature of the ultraviolet ozone cleaning machine is 20°C. During the ultraviolet irradiation process, the ultraviolet light has a wavelength of 100nm to 300nm and is irradiated for 60 minutes to obtain the surface-treated silicone rubber sample A2.

[0076] Prepare 1 part of γ-glycidyl etheroxypropyl trimethoxysilane, 5 parts of water, and 94 parts of ethanol solution, spray the solution on the surface of the treated silicone rubber sample A2, and heat at 70°C for 3 minutes to obtain surface grafting Silicone rubber B2 with reactive groups.

[0077] Mix epoxy resin glue A and glue B at a ratio of 3:1, add 2wt% N-hexadecylpyridinium nitrate, mix evenly, coat on silicone rubber B2, and obtain antistatic silicone rubber 2 after curing.

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Abstract

The invention relates to a preparation method of an antistatic silicone rubber. The preparation method comprises following steps: a silicone rubber is prepared, and is subjected to surface treatment,so that the surface of the silicone rubber is provided with polar groups; the surface of the silicone rubber provided with the polar groups is coated with a multifunctional group compound so as to form a first coating layer, the multifunctional group is reacted with the polar groups to form chemical bonds; the surface of the first coating layer is coated with an antistatic agent and a binder so asto form a second coating layer, the binder is reacted with the multifunctional group for form chemical bonds, and curing is carried out so as to obtain the antistatic silicone rubber. According to the preparation method, silicone rubber is subjected to surface treatment firstly, and then the coating layer containing the antistatic agent is formed on the surface of the silicone rubber, so that permanent antistatic effect is achieved.

Description

technical field [0001] The invention relates to the technical field of rubber, in particular to a preparation method of antistatic silicone rubber. Background technique [0002] Polymer materials are prone to static electricity, and if the static electricity is not removed in time after generation, it is easy to accumulate, resulting in vacuuming, electric shock, and even explosions and other vicious accidents after sparks are generated. In the electronic communication industry, the accumulation of static electricity will destroy the semiconductor components of integrated circuits, thereby causing electronic devices, machines, etc. to malfunction. Moreover, the existence of static electricity will cause interference to wireless communication equipment, generate noise, and affect signal transmission. Therefore, it is necessary to carry out antistatic treatment on polymer materials. [0003] At present, the method of antistatic treatment of polymer materials is mainly to add...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/04C09D5/24C08L83/04
CPCC08J7/042C08J2383/04C09D5/24
Inventor 张成裕
Owner INST OF FLEXIBLE ELECTRONICS TECH OF THU ZHEJIANG
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