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Modified silica gel material, and preparation method and application thereof

A silica gel and modification technology, which is applied in the field of modified silica gel materials, can solve problems such as potential safety hazards, sliding pots, and reducing the use efficiency of induction cookers, and achieve the effects of improving safety, increasing friction, and good insulation

Inactive Publication Date: 2014-10-15
赵雪雅
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For household induction cookers, because the surface is smooth, the bottom of the household pot is also very smooth, and it is easy to slip the pot body when cooking, posing a safety hazard
In order to increase the friction of the contact surface and prevent the pot body from sliding, people usually put newspapers or cloth pads on it. Although this can prevent slipping, it greatly reduces the efficiency of the induction cooker.

Method used

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  • Modified silica gel material, and preparation method and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A preparation method of silica gel modified material, comprising the steps of:

[0032] (1) Mix 100kg of methyl vinyl silicone rubber, 45kg of white carbon black, 4kg of hydroxy silicone oil, 0.3kg of zinc stearate, 15kg of magnetized powder, and 25kg of alumina in a 300L internal mixer at a temperature of 150°C 90min, cooling, and filtering through a model XL (J) rubber extruder, the die head of the rubber extruder is equipped with a 200-mesh stainless steel filter screen, the frequency conversion rotation number is set at 850 rpm, and the impurities in the rubber compound are removed by filtration After that, obtain the modified silica gel raw material;

[0033] (2) Add 2kg of bis-dipentasulfurizing agent to the modified silica gel raw material obtained in step (1), mold it in a 200-ton flat vulcanizer, vulcanize for 1min at a temperature of 185°C, and press at a pressure of 100MPa to obtain a modified silica gel gasket.

[0034] The magnetized powder is a magnet wi...

Embodiment 2

[0037] (1) Mix 100kg of methyl vinyl silicone rubber, 40kg of white carbon black, 3.5kg of hydroxy silicone oil, 0.3kg of zinc stearate, 12kg of magnetized powder, and 20kg of alumina in a 300L internal mixer at a temperature of 170°C. Refining for 80 minutes, cooling, and filtering through a model XL (J) rubber extruder. The die head of the rubber extruder is equipped with a 200-mesh stainless steel filter screen, and the frequency conversion speed is set at 850 rpm to filter out impurities in the rubber compound. After that, obtain the modified silica gel raw material;

[0038] (2) Add 2kg of bis-dipentasulfurizing agent to the modified silica gel raw material obtained in step (1), mold it in a 200-ton plate vulcanizing machine, vulcanize for 40s at a temperature of 195°C, and a pressure of 100MPa to obtain a modified silica gel Material.

[0039] The magnetized powder is a magnet with magnetism. After pulverization, 2Kg of coupling agent of Foshan Daoning Chemical Co., Ltd...

Embodiment 3

[0041] (1) Mix 100kg of methyl vinyl silicone rubber, 48kg of white carbon black, 4.5kg of hydroxy silicone oil, 0.4kg of zinc stearate, 20kg of magnetized powder, and 22kg of alumina in a 300L internal mixer at a temperature of 140°C. Refining for 120min, cooling, and filtering through a model XL (J) rubber extruder. The die head of the rubber extruder is equipped with a 200-mesh stainless steel filter screen, and the frequency conversion speed is set at 850 rpm to filter out impurities in the rubber compound. After that, obtain the modified silica gel raw material;

[0042] (2) Add 2kg of bis-dipentasulfurizing agent to the modified silica gel raw material obtained in step (1), mold it in a 200-ton flat vulcanizing machine, vulcanize for 70s at a temperature of 180°C, and a pressure of 100MPa to obtain a modified silica gel Material.

[0043] The magnetized powder is a magnet with magnetism. After crushing, add 1.3Kg of Foshan Daoning Chemical Co., Ltd., model: A-171 coupli...

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Abstract

The invention relates to the technical field of silica gel materials, and discloses a modified silica gel material, and a preparation method and application thereof. The modified silica gel material comprises the following components in percentage by weight: 40-50% of methyl vinyl silicone rubber, 16-20% of white carbon black, 2-4% of hydroxyl silicone oil, 0.1-0.3% of zinc stearate, 12-18% of magnetic powder, 16-20% of aluminium oxide and 1-2% of a DBPMH vulcanizing agent. The components are subjected to mixing, vulcanization and compression molding so as to form a gasket for an induction cooker. The modified silica gel material has the advantages of being antiskid, high temperature resistant, magnetic, good in insulativity, and the like. Meanwhile, the friction of the induction cooker against a pot is enhanced, and the safety of the induction cooker is improved.

Description

technical field [0001] The invention relates to the technical field of silica gel materials, in particular to a modified silica gel material, its preparation method and application. Background technique [0002] The basic structural unit of organic silica gel is composed of silicon-oxygen chain links, and the side chains are connected with various other organic groups through silicon atoms. Therefore, the structure of silicone products contains both "organic groups" and "inorganic structures". This special composition and molecular structure makes it have the following excellent characteristics. Silicone products have high thermal stability, the chemical bonds of molecules will not be broken or decomposed under high temperature or radiation exposure, and the service life in the natural environment can reach several decades. Silicone products have good electrical insulation properties. Silicones are among the most inactive compounds known. They are very resistant to biolog...

Claims

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Application Information

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IPC IPC(8): C08L83/07C08L83/06C08K13/02C08K3/36C08K5/098C08K3/22
Inventor 赵雪雅
Owner 赵雪雅
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