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Phenolic resin hollow bead, and preparation method and application thereof

A phenolic resin and water-soluble phenolic resin technology, which is applied in the field of plastic processing, can solve the problems such as the difficulty of effectively and accurately controlling the thickness and phase composition of the hollow spherical shell, the difficulty in controlling the particle size of the sphere, and the lack of industrialized products, and achieves low cost, roundness and so on. Good shape and short response time

Active Publication Date: 2014-03-12
CHINA PETROLEUM & CHEM CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the 21st century, researchers at home and abroad have conducted a lot of research and reports on polymer hollow microsphere materials, but overall, the preparation of polymer hollow microspheres still has cumbersome preparation process, difficulty in controlling the particle size of the spheres, hollow spheres Shell thickness and phase composition are difficult to effectively and accurately control. At present, most of them are limited to the laboratory research stage, and there are no mature industrial products.
[0005] There are still few reports on the preparation method and technology of effectively preparing phenolic resin hollow microspheres

Method used

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  • Phenolic resin hollow bead, and preparation method and application thereof
  • Phenolic resin hollow bead, and preparation method and application thereof
  • Phenolic resin hollow bead, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] (1) Add 200g of water-soluble phenolic resin and 250g of water into the container, and start mechanical stirring to completely dissolve and disperse the water-soluble phenolic resin to obtain a uniformly dispersed slurry. The liquid phase viscosity of the slurry is 7.9mPa·s. The weight ratio with water is 1:1.25;

[0036] (2) Start the spray dryer, set the inlet temperature parameter to 250°C, the outlet temperature parameter to 160°C, and the frequency of the main frequency to 50Hz, so that the temperature field of the equipment is constant and uniform, and the airflow is stable; the rate of the volume pump is adjusted to 10ml / min , the slurry in step (1) is evenly sprayed under the working chamber, and the phenolic resin slurry is dried instantly to form hollow pellets, and the hollow pellets are driven by the wind-inducing device to collect samples in the cyclone, cloth bag and tower bottom respectively; the obtained phenolic resin The particle size of resin hollow s...

Embodiment 2

[0038](1) Add 200g of water-soluble phenolic resin, 10g of ammonium bicarbonate, 10g of ammonia water and 2000g of water into the container, and start mechanical stirring to completely dissolve and disperse the water-soluble phenolic resin to obtain a uniformly dispersed slurry; the liquid phase viscosity of the slurry is 2.7 mPa·s, the weight ratio of water-soluble phenolic resin to water is 1:10, and the blowing agent is 10% of the weight of water-soluble phenolic resin;

[0039] (2) Start the spray dryer, set the inlet temperature parameter to 270°C, the outlet temperature parameter to 170°C, and the frequency of the main frequency to 50Hz, so that the temperature field of the equipment is constant and uniform, and the air flow is stable; the rate of the volume pump is adjusted to 30ml / min , the slurry in step (1) is evenly sprayed under the working chamber, and the phenolic resin slurry is dried instantly to form hollow pellets, and the hollow pellets are driven by the wind...

Embodiment 3

[0041] (1) Add 100g of water-soluble phenolic resin, 5g of sodium bicarbonate and 2000g of water into the container, and start mechanical stirring to completely dissolve and disperse the water-soluble phenolic resin to obtain a uniformly dispersed slurry. The liquid phase viscosity of the slurry is 3.1mPa·s , water-soluble phenolic resin and water weight ratio is 1:20; Blowing agent is 5% of water-soluble phenolic resin weight;

[0042] (2) Start the spray dryer, set the inlet temperature parameter to 290°C, the outlet temperature parameter to 175°C, and the frequency of the main frequency to 50Hz, so that the temperature field of the equipment is constant and uniform, and the airflow is stable; the rate of the volume pump is adjusted to 60ml / min , the slurry in step (1) is evenly sprayed under the working chamber, and the phenolic resin slurry is dried instantly to form hollow pellets, and the hollow pellets are driven by the wind-inducing device to collect samples in the cycl...

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Abstract

The invention provides a phenolic resin hollow bead and a preparation method and application thereof, relating to the field of plastics. The interior of the phenolic resin hollow bead is of a hollow structure, and the particle size of the bead is in a range of 5 to 100 mu m. The preparation method for the bead comprises the following steps: adding a water-soluble phenolic resin into water, carrying out stirring so as to form uniform slurry and selectively adding a foaming agent into the slurry; and subjecting the slurry to spray drying so as to allow the water-soluble phenolic resin to be cured and carrying out granulation so as to obtain the phenolic resin hollow bead. The phenolic resin hollow bead prepared in the invention has a small particle size and controllable particle size distribution and can be well applied in fields like petroleum drilling fluid; the preparation method for the bead is simple, takes a short period of time for preparation of the bead and can be easily industrialized.

Description

technical field [0001] The invention relates to the field of plastic processing, and more particularly relates to a hollow phenolic resin sphere, a preparation method and application thereof. Background technique [0002] Hollow microsphere materials have unique chemical and physical properties due to their special hollow structure. In recent years, they have attracted more and more attention and become a research hotspot in the field of materials. So far, inorganic materials, polymer materials, metal oxide materials and semiconductor materials (gallium oxide, gallium nitride) have all been tried to be prepared into hollow microsphere materials by domestic and foreign researchers. Different special features for solid materials. These hollow microsphere materials with special characteristics are expected to be used in microreactors, drug delivery, controlled release, photocatalysis, enzyme coating, photonic crystals, etc. In addition, due to the low density, large effective...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/06C08J9/08C08J9/04C08J3/12C09K8/035
Inventor 赵素丽范俊梅石秉忠陈铖林永学袁方利韩秀贞
Owner CHINA PETROLEUM & CHEM CORP
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