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A kind of organosilicon modified hollow ceramic microbead and its preparation and application

A technology of ceramic microbeads and organic silicon, which is applied in the field of building decoration materials, can solve the problems of ceramic microbead damage, microbead damage, frontal collision of dispersion paddle microbeads, etc., to improve the thermal insulation performance of porcelain, reduce shrinkage, and reduce The effect of loss on ignition

Active Publication Date: 2020-06-05
江苏省苏安能节能建材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, various types of hollow microspheres have been prepared. Although their preparation has certain characteristics and advantages, they all have the disadvantages of expensive special production equipment, complicated process, high cost, and unsuitable promotion, which limits the application of hollow microspheres. Development and Application
[0003] In the traditional centrifugal dispersion method, the dispersing paddle is likely to collide with the microbeads head-on, causing a large number of damages to the ceramic microbeads and losing the heat insulation function
Generally, ceramic microbeads will not be broken in a fire environment, but when mixed into flexible decorative tiles as a filler, due to the rapid shrinkage of the volume during the curing process of the tiles, the microbeads are easily damaged by the surrounding tension

Method used

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  • A kind of organosilicon modified hollow ceramic microbead and its preparation and application
  • A kind of organosilicon modified hollow ceramic microbead and its preparation and application
  • A kind of organosilicon modified hollow ceramic microbead and its preparation and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1 Preparation of Silicone Modified Hollow Ceramic Microbeads

[0020] Raw material composition:

[0021] 40 parts of compound porcelain powder (4 parts of low-temperature glass powder, 6 parts of montmorillonite, 6 parts of mica powder, 28 parts of kaolin), 10 parts of decarburizer (boric acid, sodium borate and chloroplatinic acid), 10 parts of isobutyl tri 5 parts of silicon ethoxylate, 20 parts of vinyl silicone rubber, 5 parts of basalt, 5 parts of magnesium oxide, 5 parts of zinc oxide;

[0022] Preparation:

[0023] Take compound porcelain powder, basalt, magnesium oxide, zinc oxide and add a certain amount of acetonitrile, ball mill and granulate to make agglomerated powder of 100-150 μm, volatilize acetonitrile, porcelain at 1200℃ in muffle furnace, cool to room temperature, Create ceramic microspheres, add vinyl silicone rubber and isobutyl triethoxy silicon, stir, react at 70°C for 5 hours, add decarburizer, and decarburize at 400°C in a muffle fu...

Embodiment 2

[0024] Embodiment 2 Preparation of Silicone Modified Hollow Ceramic Microbeads

[0025] Raw material composition:

[0026] 70 parts of compound porcelain powder (3 parts of aluminum hydroxide, 30 parts of montmorillonite, 37 parts of alumina), 15 parts of decarburizer (boric acid, sodium borate and chloroplatinic acid), 15 parts of peroxysilane, ethylene 40 parts of base silicone rubber, 10 parts of basalt, 30 parts of aluminum nitride;

[0027] Preparation:

[0028] Take compound porcelain powder, basalt, aluminum nitride and add a certain amount of pyridine, ball mill and granulate to make agglomerated powder of 100-150μm, pyridine volatilizes, muffle furnace 1200℃ high temperature porcelain, cool to room temperature, and produce ceramics Microbeads, add vinyl silicone rubber and peroxysilane, stir, react at 110°C for 7h, add decarburizer, and decarburize at 400°C in a muffle furnace to obtain organosilicon-modified hollow ceramic microbeads with a yield of 85% %.

Embodiment 3

[0029] Example 3 Preparation of Organic Silicon Modified Hollow Ceramic Microbeads

[0030] Raw material composition:

[0031] 52 parts of compound porcelain powder (2 parts of magnesium hydroxide, 20 parts of mica powder, 10 parts of magnesium oxide, 20 parts of aluminum oxide), 13 parts of decarburizing agent (boric acid, sodium borate and chloroplatinic acid), 13 parts of vinyl tri( β-methoxyethoxy) silane 7 parts, vinyl silicone rubber 30 parts, basalt 7 parts, silicon carbide 20 parts;

[0032] Preparation:

[0033] Take compound porcelain powder, basalt, silicon carbide and add a certain amount of organic solvent, ball mill and granulate to make agglomerated powder of 100-150μm, organic solvent volatilizes, muffle furnace 1200℃ high temperature porcelain, cool to room temperature, and produce Ceramic microbeads, add vinyl silicone rubber and vinyl tris(β-methoxyethoxy)silane, stir, react at 90°C for 6h, add decarburizer, decarburize at 400°C in muffle furnace, and obta...

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Abstract

The invention provides modified hollow ceramic microbead of organosilicon, which is prepared from the following raw materials: composite porcelain powder, a decarburizing agent, a coupling agent, ethylene silicone rubber, graystone and thermal conducting filler, wherein the composite porcelain powder is composed of low-temperature porcelain powder, medium-temperature porcelain powder and high-temperature porcelain powder; the decarburizing agent is composed of compound boron series and chloroplatinic acid; the compound boron series is composed of at least 2 of boric acid and borate; the coupling agent is a silane coupling agent; the thermal conducting filler is selected from one or more of aluminum oxide, magnesium oxide, zinc oxide, aluminum nitride, boron nitride, silicon carbide and graphite, the modified hollow ceramic microbead prepared by the invention can protect the ceramic microbead from being crushed in large quantities in the mixing process due to collision with each other,reduce the production cost, and have broad application prospects.

Description

technical field [0001] The invention relates to the technical field of building decoration materials, in particular to a modified hollow ceramic microbead. Background technique [0002] Hollow microspheres are a new type of material developed in the 1970s. They have a series of advantages such as fine particles, hollow, light weight, high temperature resistance, radiation protection, corrosion resistance, fire resistance and waterproof, and stable chemical properties. They are used in many fields. play an important role. Hollow microspheres have superior performance and are widely used, and a large number of preparation and application researches have been carried out at home and abroad. At present, various types of hollow microspheres have been prepared. Although their preparation has certain characteristics and advantages, they all have the disadvantages of expensive special production equipment, complicated process, high cost, and unsuitable promotion, which limits the a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B38/00C04B33/04C04B33/13C04B35/10C04B35/622
CPCC04B33/04C04B33/1305C04B33/131C04B35/10C04B35/622C04B38/009C04B2235/3206C04B2235/3284C04B2235/349
Inventor 陆洪彬周锦峰赵坛祥杨海琴
Owner 江苏省苏安能节能建材科技有限公司
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