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A low-odor and low-corrosion one-component deketoxime type silicone rubber and its preparation method

A one-part deketoxime, corrosive technology, applied in the field of low odor and low corrosion one-component deketoxime silicone rubber and its preparation, can solve the limitation of the application range of deketoxime silicone rubber, patina PC plastic, difficult smell and other problems, to achieve good weather resistance and environmental aging performance, good adhesion

Active Publication Date: 2017-06-30
GUANGZHOU HUINA NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Silicone materials have excellent adhesive properties and weather resistance, and are widely used in construction, automobiles, electronics and other industries, but deketoxime type silicone rubber will release an unpleasant smell during the crosslinking reaction (the odor level can reach level 3 ), and is corrosive to metal copper, PC (polycarbonate) materials, etc., such as producing patina or causing cracks in PC plastics, etc.
The reason is mainly due to the influence of ketoxime substances produced during the colloidal crosslinking and curing process, which limits the application range of deketoxime silicone rubber.

Method used

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  • A low-odor and low-corrosion one-component deketoxime type silicone rubber and its preparation method
  • A low-odor and low-corrosion one-component deketoxime type silicone rubber and its preparation method
  • A low-odor and low-corrosion one-component deketoxime type silicone rubber and its preparation method

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Embodiment 1

[0017] 1. In this embodiment, a low-odor and low-corrosion one-component deketoxime-type silicone rubber is composed of raw materials in parts by weight:

[0018]

[0019] 2. The preparation method of a low-odor and low-corrosion one-component deketoxime-type silicone rubber in this embodiment is as follows: mix the ingredients of the above-mentioned raw materials for 40 minutes at a vacuum degree of -0.09Mpa and a stirring speed of 25Hz, and discharge The product is ready to fill.

Embodiment 2

[0021] 1. In this embodiment, a low-odor and low-corrosion one-component deketoxime-type silicone rubber is composed of raw materials in parts by weight:

[0022]

[0023] 2. The preparation method of a low-odor and low-corrosion one-component deketoxime-type silicone rubber in this embodiment is as follows: mix the ingredients of the above-mentioned raw materials for 45 minutes under a vacuum degree of -0.08Mpa and a stirring speed of 25Hz, and discharge The product is ready to fill.

Embodiment 3

[0025] 1. In this embodiment, a low-odor and low-corrosion one-component deketoxime-type silicone rubber is composed of raw materials in parts by weight:

[0026]

[0027] 2. The preparation method of a low-odor and low-corrosion one-component deketoxime-type silicone rubber in this embodiment is as follows: mix the above-mentioned raw materials for 40 minutes at a vacuum degree of -0.09Mpa and a stirring speed of 20 Hz, and discharge The product is ready to fill.

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Abstract

The invention discloses low-odor and low-corrosion single-component deketoxime type silicone rubber. The low-odor and low-corrosion single-component deketoxime type silicone rubber comprises the following raw materials in parts by weight: 80-110 parts of alpha, omega-dihydroxy polydimethylsiloxane, 100-200 parts of aluminum hydroxide base material, 1-10 parts of fumed silica, 1-10 parts of a neutralizer, 5-20 parts of methyl silicon oil, 5-30 parts of a cross-linking agent, 0.5-5 parts of a coupling agent and 0.01-1 part of a catalyst, wherein the neutralizer is one or more of brucite, aluminum silicate, magnesium silicate, zeolite, bamboo charcoal powder and organic isocyanate. The invention further discloses a preparation method of the low-odor and low-corrosion single-component deketoxime type silicone rubber. The low-odor and low-corrosion single-component deketoxime type silicone rubber disclosed by the invention is used for solving the problem of unpleasant odor and eliminating corrosion and damages to copper and PC (polycarbonate) material caused by ketoxime type substances by reducing the content of volatiles and has good cohesiveness.

Description

technical field [0001] The invention relates to the technical field of polymer sealing materials, in particular to a low-odor and low-corrosion one-component deketoxime type silicone rubber and a preparation method thereof. Background technique [0002] Silicone materials have excellent adhesive properties and weather resistance, and are widely used in construction, automobiles, electronics and other industries, but deketoxime type silicone rubber will release an unpleasant smell during the crosslinking reaction (the odor level can reach level 3 ), and is corrosive to metal copper, PC (polycarbonate) materials, etc., such as producing patina or causing cracks in PC plastics. The reason is mainly due to the influence of ketoxime substances produced in the process of colloid crosslinking and curing, which limits the application range of deketoxime type silicone rubber. However, since the by-products of deketoxime silicone rubber in the crosslinking reaction are much less than...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L83/06C08L83/04C08K13/06C08K9/00C08K3/22C08K3/36C08K5/29C08K5/544C08K3/26C08K3/34C08K5/5425C08K5/548C08K5/5435C08K5/5465
Inventor 李大卿廖帮伟黄剑文黄坚林鸿李彬诚
Owner GUANGZHOU HUINA NEW MATERIAL TECH
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