Elastomer coating hollow micro-spheres, method for preparing same and application of elastomer coating hollow micro-spheres

A hollow microsphere and preparation process technology, applied in the directions of fibrous filler, dyed polymer organic compound treatment, dyed organic silicon compound treatment, etc. Good performance, environmental protection, and the effect of eliminating the use of volatile solvents

Active Publication Date: 2015-12-16
SHANGHAI RES INST OF MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation process of the above-mentioned materials is relatively complicated, and the material properties of the composite materials, including sound absorption properties, are relatively poor.

Method used

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  • Elastomer coating hollow micro-spheres, method for preparing same and application of elastomer coating hollow micro-spheres

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The preparation technology of the hollow microsphere of coating elastomer, comprises the following steps:

[0029] 1) 90 kg of glass hollow microspheres are placed at the bottom of the fluidized bed reaction chamber;

[0030] 2) Inject air from the gas inlet at the bottom of the fluidized bed reaction chamber, and adjust the airflow to 1.5m3 / h, so that the hollow microspheres are in a suspended state;

[0031] 3) Mix 10kg of acrylate and 0.2kg of 4,4-dimethyl-diphenyliodonium hexafluorophosphate evenly;

[0032] 4) The mixed raw materials are placed in the storage chamber on the upper part of the ebullated bed reaction chamber, and sprayed into the ebullated bed reaction chamber by the atomizing nozzle;

[0033] 5) Turn on the ultraviolet lamp installed above the fluidized bed reaction chamber to irradiate for about 60s;

[0034] 6) The elastic resin coated on the hollow microspheres is cured rapidly under the irradiation of ultraviolet light, the ultraviolet lamp is ...

Embodiment 2

[0036] The preparation technology of the hollow microsphere of coating elastomer, comprises the following steps:

[0037] 1) 40 kg of glass hollow microspheres are placed at the bottom of the fluidized bed reaction chamber;

[0038] 2) Open and inject air from the gas inlet of the fluidized bed reaction chamber, and adjust the air flow to 1.0m3 / h, so that the hollow microspheres are in a suspended state.

[0039] 3) Mix 60kg of polyurethane acrylate resin, 2kg of vinyl silane coupling agent, 0.2kg of stearic acid, and 0.2kg of triphenylthione hexafluorophosphate;

[0040] 4) The mixed raw materials are placed in the storage chamber at the upper part of the fluidized bed reaction chamber, and sprayed into the fluidized bed reaction chamber through the atomizing nozzle.

[0041] 5) Turn on the ultraviolet lamp installed above the fluidized bed reaction chamber to irradiate for about 60s;

[0042] 6) The elastic resin coated on the hollow microspheres is cured rapidly under the...

Embodiment 3

[0046] The preparation technology of the hollow microsphere of coating elastomer, comprises the following steps:

[0047] 1) 90 kg of ceramic hollow microspheres are placed at the bottom of the fluidized bed reaction chamber;

[0048] 2) Open and inject air from the gas inlet of the fluidized bed reaction chamber, and adjust the air flow to 1.8m3 / h, so that the hollow microspheres are in a suspended state.

[0049] 3) Mix 40kg of polyurethane acrylate resin, 2kg of vinyl silane coupling agent, 0.2kg of stearic acid, and 0.2kg of benzoin ether;

[0050] 4) The mixture of elastic resin, coupling agent and surfactant is placed in the storage chamber on the upper part of the ebullated bed reaction chamber, and is sprayed into the ebullated bed reaction chamber by the atomizing nozzle.

[0051] 5) Turn on the ultraviolet lamp installed above the fluidized bed reaction chamber to irradiate for about 60s;

[0052] 6) The elastic resin coated on the hollow microspheres is cured rapi...

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Abstract

The invention relates to elastomer coating hollow micro-spheres, a process for preparing the same and application of the elastomer coating hollow micro-spheres. The elastomer coating hollow micro-spheres comprise hollow micro-spheres and elastomers. The elastomers are coated on the outsides of the hollow micro-spheres, and elastic resin is cured by ultraviolet light under the effects of photoinitiators to obtain the elastomers. The micro-spheres can be used as filling materials, so that the sound absorption performance can be improved. Compared with the prior art, the elastomer coating hollow micro-spheres, the process and the application have the advantages that the micro-spheres are used as the filling materials, accordingly, weight reduction effects can be improved as compared with common hollow micro-sphere materials, and the elastomer coating hollow micro-spheres with elastomer coating layers are excellent in sound absorption performance; reactors comprise boiling beds and ultraviolet lamps which are combined with one another, accordingly, the elastic resin such as polyurethane elastic resin and acrylic acid elastic resin can be quickly cured within approximately 60s in general, usage of volatile solvents can be reduced or completely eradicated, and environments can be protected.

Description

technical field [0001] The invention relates to a resin-based composite material and its preparation process, in particular to a hollow microsphere coated with an elastomer, its preparation process and application. Background technique [0002] Elastomer refers to a polymer material that deforms significantly under weak stress and can quickly return to its original state and size after stress relaxation. As a filling material, hollow microspheres have the advantages of light weight, large volume, low thermal conductivity, good dispersion, fluidity, and stability. Using hollow microspheres to enhance weight loss is one of the effective ways to modify composite materials. [0003] In order to meet the increasing demand for materials, the hollow microspheres are coated with elastomer as a filling material, which can meet some current special needs such as sound absorption. The sound absorption capacity of the material can be greatly improved by using the elastic relaxation eff...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F120/10C08F2/48C08F299/06C08F283/00C08F220/10C09C1/00C09C3/12C09C3/10
Inventor 李小慧于广益金石磊吴佳林
Owner SHANGHAI RES INST OF MATERIALS CO LTD
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