Titanate chelate for single-component dealcoholized room temperature vulcanized silicone rubber and preparation method thereof

A room temperature vulcanization and dealcoholization technology, applied in the direction of titanium organic compounds, etc., can solve the problems that the production process has not yet been published, and the titanate chelate is not clear, so as to avoid the viscosity peak, the process is easy to realize, and the production process is easy Effect

Inactive Publication Date: 2014-02-05
深圳市红叶杰科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] At present, there is no clear process for how to prepare titanate che

Method used

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  • Titanate chelate for single-component dealcoholized room temperature vulcanized silicone rubber and preparation method thereof
  • Titanate chelate for single-component dealcoholized room temperature vulcanized silicone rubber and preparation method thereof
  • Titanate chelate for single-component dealcoholized room temperature vulcanized silicone rubber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A titanate chelate compound for one-component dealcoholized room temperature vulcanized silicone rubber, using isopropyl titanate, ethyl acetoacetate and 1,3-propanediol as raw materials, and the final product is 1,3-propanediol Oxybis(ethyl acetoacetate) titanate, the chemical reaction equation is:

[0034]

[0035] and

[0036]

Embodiment 2

[0038] A preparation method for a one-component dealcoholized room temperature vulcanized silicone rubber titanate chelate, comprising the following steps:

[0039] (1) Add 1000g of tetraisopropyl titanate into a dry and clean three-necked bottle of 3000ml, and drop 111.6g of ethyl acetoacetate into the three-necked bottle evenly, stir for 2h; then heat to 40 with an oil bath or a constant temperature heater ℃;

[0040] (2) First remove isopropanol under normal pressure, then remove under reduced pressure until no liquid drops drip out, add 267g of 1,3-isopropanol after cooling, and stir for 3 hours;

[0041] (3) The temperature of the oil bath is raised to 80°C-90°C, and the by-product isopropanol is removed for 6-7h after the vacuum degree is greater than 650 Torr;

[0042] (4) The obtained product is sealed into a glass bottle.

[0043] The obtained product was used to produce GD406, GD407RTV-1.

Embodiment 3

[0045] A preparation method for a one-component dealcoholized room temperature vulcanized silicone rubber titanate chelate, comprising the following steps:

[0046] (1) Add 1000g of tetraisopropyl titanate to a dry and clean 3000ml three-necked bottle, and drop 111.6g of ethyl acetoacetate into the three-necked bottle evenly, and stir for 2 hours; then heat it with an oil bath or a constant temperature heater until 40°C;

[0047] (2) First remove isopropanol under normal pressure, then remove under reduced pressure until no liquid drops drip out, add 267g of 1,3-isopropanol after cooling, and stir for 3 hours;

[0048] (3) The temperature of the oil bath is raised to about 140 degrees, and the by-product isopropanol is removed for 6-7 hours under a vacuum degree > 650 Torr;

[0049] (4) The obtained product is sealed into a glass bottle.

[0050] The resulting product is used as a catalyst for the production of GD414.

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Abstract

The invention provides a titanate chelate for single-component dealcoholized room temperature vulcanized silicone rubber. Isopropyl titanate, ethyl acetoacetate and 1, 3-propanediol are taken as raw materials. The invention further provides a preparation method of the titanate chelate for the single-component dealcoholized room temperature vulcanized silicone rubber. The preparation method comprises the following steps: (1) adding 1000g of tetraisopropyl titanate into a dry and clean 3000ml three-necked bottle, evenly dropping 111.6g of ethyl acetoacetate into the thee-necked bottle, and stirring for 2h, and then heating by an oil bath or a constant-temperature heater to 40 DEG C; (2) firstly removing isopropanol at normal pressure, then performing removal at reduced pressure till no liquid droplets drop out, cooling, then adding 267g of 1, 3-propanediol and stirring for 3h; (3) heating by the oil bath, and removing a byproduct, namely the isopropanol under the vacuum degree of more than 650 torr for 6-7h; and (4) loading an obtained product into a glass bottle. Raw materials used by the preparation method are simple and easily available, the process is easy to implement, and the production process is easy to control; in addition, the appearance of viscosity peaks can be reduced or avoided.

Description

technical field [0001] The invention relates to a titanate chelate, specifically a titanate chelate for one-component dealcoholization type room temperature vulcanization silicone rubber, and the invention also relates to the one-component dealcoholization type room temperature vulcanization The preparation method of titanate chelate compound for silicone rubber. Background technique [0002] One-component room temperature vulcanized silicone rubber has been patented since the late 1950s, and commercial products have appeared one after another in the early 1960s. The vulcanization reaction of one-component room temperature vulcanized silicone rubber (shown by RTV-1) is initiated by moisture in the air, and there are often deacetone type, deamidation type, dealcoholization type, deacetate type, deketone type, etc. . RTV-1 has excellent electrical properties and chemical inertness as well as heat resistance, natural aging resistance, flame resistance, moisture resistance, an...

Claims

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Application Information

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IPC IPC(8): C07F7/28C08L83/04C08J3/24
Inventor 李贵宾
Owner 深圳市红叶杰科技有限公司
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