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Method for preparing nano silicon dioxide-acrylate polymeric microball material

A technology of nano-silica and polymer microspheres, which is applied in the field of preparation of oil-soluble nano-silica-acrylate polymer microsphere materials

Inactive Publication Date: 2006-05-24
INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Polymer microspheres can be prepared from monomers as raw materials by free radical polymerization, or from pre-synthesized polymers or natural polymers, but must be prepared by special methods

Method used

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  • Method for preparing nano silicon dioxide-acrylate polymeric microball material
  • Method for preparing nano silicon dioxide-acrylate polymeric microball material
  • Method for preparing nano silicon dioxide-acrylate polymeric microball material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A preparation method of an oil-soluble nano silicon dioxide-acrylate polymer microsphere material, comprising the following steps:

[0025] The first step: add 10-100 parts by mass of oil-soluble silica to 10-100 parts by mass of acrylate monomer, and then ultrasonically disperse for 1-30 minutes to form a mixed solution.

[0026] In this embodiment, the oil-soluble nano silica refers to the silica produced by Degussa Company, numbered R-974, the particle size is 12nm, and the mass parts can be 10 parts, 20 parts, 32 parts, 45 parts, 52 parts parts, 70 parts, 81 parts, 90 parts. The acrylate monomer can be methyl acrylate monomer, ethyl acrylate monomer, octyl acrylate monomer, isooctyl acrylate monomer, methyl methacrylate monomer, hydroxyethyl methacrylate monomer, methyl acrylate One or more mixtures of hydroxypropyl acrylate monomer, hydroxyethyl acrylate monomer, hydroxypropyl acrylate monomer, and glycidyl methacrylate monomer. The mixture ratio can be any ratio ...

Embodiment 2

[0031] (1) Dispersion of oil-soluble nano-silica in the monomer:

[0032] Step 1: Add 0.5g of oil-soluble silicon dioxide to 20 / 20g of methyl methacrylate / butyl methacrylate monomer, and then perform ultrasonic dispersion to obtain a mixed liquid. The ultrasonic dispersion conditions are as follows: the ultrasonic frequency is 200 kHz, the ultrasonic power is 1000 W, and the ultrasonic emulsification time is 10 min.

[0033] The second step: add 2.0g n-hexadecane and 0.4g azobisisobutyronitrile into the mixed liquid, add 1.5g sodium lauryl sulfate into 100g water and stir to dissolve it, then mix the mixed liquid with twelve An aqueous solution of sodium alkyl sulfate was mixed and stirred, and ultrasonically emulsified. The phacoemulsification conditions of the miniemulsion are: the ultrasonic frequency is 200kHz, the ultrasonic power is 500W, and the phacoemulsification time is 5min.

[0034] Step 3: raise the temperature to a specified temperature of 60° C., and then init...

Embodiment 3

[0044] Step 1: Add 1g of oil-soluble silica to 20 / 20g of methyl methacrylate / butyl methacrylate monomer, and then perform ultrasonic dispersion. Ultrasonic dispersion conditions are: ultrasonic frequency 300kHz, ultrasonic power 800W, phacoemulsification time 8min.

[0045] Step 2: Add 0.8g of n-hexadecane and 0.2g of benzoyl peroxide into the mixed liquid, add 1.2g of sodium lauryl sulfate into 140g of water and stir to dissolve it, then mix the mixed liquid with dodecane Sodium sulfate aqueous solution was mixed and stirred, and ultrasonically emulsified. The phacoemulsification conditions of the miniemulsion are: the ultrasonic frequency is 200kHz, the ultrasonic power is 1000W, and the phacoemulsification time is 5min.

[0046] Step 3: raise the temperature to a specified temperature of 70° C., and then initiate polymerization to obtain an oil-soluble silica-acrylate composite miniemulsion. Proportion:

[0047] A oil-soluble nano-silica 1 g

[0048] B Butyl methacrylat...

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Abstract

The invention relates to a preparation method of nanometer silicon dioxideí¬methacrylate macromolecule microballoon material. It includes the following steps that the first is that oil solubility silicon dioxide with 10-100 shares quality are added into the same share methactylate monomer; then mixed liquor is gained after ultra sonic dispersion for 1-30min; The second is that anion with 1-50 shares quality or non ionic surface active agent, and peroxide initiator with 1-30 shares quality or azo genus initiator are added into the mixed liquor to form reaction system. Lipophilicity stabilizer with 1-30 shares quality is added into the 300 shares quality water to churn to form mixing water solution; then it is do super-sound emulsification for 1-30min to gain fine emulsion with average particle diameter 50-500nm. The third is that warming up to 50-90 centigrade degree, reacting for 0.5-8h, then nanometer silicon dioxideí¬methacrylate macromolecule microballoon material with average particle diameter 50-500nm is gained. The advantages of invention are that the cost is low; the contamination is litter; and it can gain package structure nanometer silicon dioxideí¬methacrylate macromolecule microballoon material.

Description

technical field [0001] The invention relates to the preparation of nano silicon dioxide-acrylate, in particular to a preparation method of an oil-soluble nano silicon dioxide-acrylate polymer microsphere material. technical background [0002] The research progress of polymer microsphere materials can be divided into preparation research progress and application research progress. The development of the two is relatively independent and mutually reinforcing. In terms of microsphere preparation technology, the preparation method and preparation system have been gradually improved, and a preparation system for polymer microspheres with a uniform size of 0.01-100 μm has been established. Especially in the past ten years, breakthroughs have been made in the preparation technology of nanoscale microspheres (tens of nanometers) and ultra-large microspheres. Polymer microspheres can be prepared by free radical polymerization from monomers, or from pre-syn...

Claims

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Application Information

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IPC IPC(8): C08F120/10C08F2/24C08F2/44C08K3/36
Inventor 储富祥庞久寅王春鹏林明涛
Owner INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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