Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Novel environment-friendly silica gel composition

A silica gel composition, an environmentally friendly technology, applied in the field of silica gel, which can solve the problems of limited use of the sealing ring, easy falling off of the sealing ring, loss of consumer confidence in the product, etc.

Active Publication Date: 2017-06-06
宁波华玺新材料有限公司
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of sealing ring has the problem that it is easy to fall off. The current solution to this problem is still to use traditional adhesives to prevent it from falling off, which is not conducive to health, and it is difficult to restore the original shape after falling off, which in turn leads to the problem of poor sealing.
In this way, the problem that the sealing ring is easy to fall off has not been fundamentally solved, resulting in consumers losing confidence in the product and reducing market share.
On the other hand, the container used to hold oil should not be sealed with silica gel, and the use of silica gel sealing rings is limited. It is urgent to invent an environmentally friendly and multi-purpose new silica gel composition to prepare an environmentally friendly sealing ring that is not easy to fall off and widely used.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Novel environment-friendly silica gel composition

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0048] Preparation of modified silica gel:

[0049] (1) Activated silicone body

[0050] In order to increase the number of silanol groups available for chemical bonding on the surface of the silica gel, it is necessary to activate the silica gel body. Silica gel activation treatment is divided into two stages: pickling and drying. First use nitric acid aqueous solution, heat treatment, after cooling, wash with distilled water until neutral, then soak in hydrochloric acid, then wash with distilled water several times until there is no chloride ion, and finally put it in a muffle furnace for drying, cool for later use.

[0051] (2) Synthesis of aminated silica gel

[0052] Weigh a certain amount of activated silica gel in a four-neck round bottom flask, add silylating reagent γ-aminopropyltrimethoxysilane (APTS) and double-distilled toluene respectively, stir and reflux under heating, filter out the solid, and use Toluene extraction, ethanol extraction, and drying to obtai...

Embodiment 1

[0071] Preparation of modified silica gel:

[0072] The grade of silica gel is ZY-820 food grade silica gel raw material.

[0073] (1) Activated silica gel

[0074] Weigh 100g of food silica gel, first treat it with 1:1.2 nitric acid aqueous solution at 100°C for 1.5h, wash it with distilled water until neutral, then soak it with 1:1.2 hydrochloric acid for 4.5h, and then wash it with distilled water several times until no Chloride ions were finally dried in a muffle furnace at 200°C for 4 hours, and then cooled for later use.

[0075] (2) Synthesis of aminated silica gel

[0076] Put the activated silica gel in a four-neck round bottom flask, add 80ml of silylating agent γ-aminopropyltrimethoxysilane (APTS) and 300ml of redistilled toluene respectively, stir and reflux at 75°C for 8.5h, and filter out the solid , followed by extraction with toluene for 5h, ethanol for 4h, and drying to obtain the product aminated silica gel.

[0077] (3) At room temperature, add 30.0 g ...

Embodiment 2

[0082] Preparation of modified silica gel:

[0083] The grade of silica gel is ZY-820 food grade silica gel raw material.

[0084] (1) Activated silica gel

[0085] Weigh 100g of food silica gel, first treat it with 1:1.2 nitric acid aqueous solution at 100°C for 1.5h, wash it with distilled water until neutral, then soak it with 1:1.2 hydrochloric acid for 4.5h, and then wash it with distilled water several times until no Chloride ions were finally dried in a muffle furnace at 200°C for 4 hours, and then cooled for later use.

[0086] (2) Synthesis of aminated silica gel

[0087] Put the activated silica gel in a four-neck round bottom flask, add 80ml of silylating agent γ-aminopropyltrimethoxysilane (APTS) and 300ml of redistilled toluene respectively, stir and reflux at 75°C for 8.5h, and filter out the solid , followed by extraction with toluene for 5h, ethanol for 4h, and drying to obtain the product aminated silica gel.

[0088] (3) At room temperature, add 30.0 g ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a novel environment-friendly silica gel composition which comprises a methyl vinyl silicon resin, a modified silica gel and a filler. The novel environment-friendly silica gel composition provided by the invention can not easily shed, and overcomes the technical problem that the traditional silica gel seal ring is not suitable to be used as an oil product seal ring, thereby widening the applicability of the silica gel.

Description

technical field [0001] The invention relates to the technical field of silica gel, more specifically, the invention relates to a novel environment-friendly silica gel composition. Background technique [0002] Silica gel (Silicon dioxide), a highly active adsorption material, is an amorphous substance obtained by drying and dehydrating silicic acid gel. Insoluble in water and any solvent, non-toxic and tasteless, stable in chemical properties, and does not react with any substance except strong alkali and hydrofluoric acid. Due to its excellent stability, silica gel is widely used in industrial production and pharmaceutical and biological industries. [0003] The sealing ring is an annular cover composed of one or several parts, which is fixed on a ring or washer of the bearing and contacts with another ring or washer or forms a narrow labyrinth gap to prevent the leakage of lubricating oil and the intrusion of foreign objects. The sealing ring is a rubber ring with a circ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C08L83/07C08L83/04C08K13/06C08K9/04C08K9/06C08K3/36C08K3/22C08K3/34
CPCC08L83/04C08L2205/025C08K13/06C08K9/04C08K9/06C08K3/36C08K2003/2227C08K3/34
Inventor 莫巨军
Owner 宁波华玺新材料有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com