Composite material based on modified hollow glass microspheres and preparation method thereof

A technology of glass microspheres and composite materials, applied in the field of composite materials, can solve the problems of instant property weakening, weak interface state, and accelerated property evolution decay of composite materials, so as to improve structure and instant properties, improve poor wettability, and enhance stability. Effect

Active Publication Date: 2020-08-14
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In view of the difference in properties between the hollow glass microspheres and the polymer matrix, the poor interface state will directly form a weak interface region, leading to the weakening of the immediate performance of the composite material and the acceleration of the performance evolution decay during storage and service.

Method used

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  • Composite material based on modified hollow glass microspheres and preparation method thereof
  • Composite material based on modified hollow glass microspheres and preparation method thereof
  • Composite material based on modified hollow glass microspheres and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] This example is to prepare a composite material by using hollow glass microspheres after high temperature treatment. Select self-made hollow glass microspheres (T38, that is, the density is 0.38g / cm 3 ) (the reference application number of self-made hollow glass microspheres in this embodiment is 201210056295.5, and the title of invention is "a hollow glass microsphere soft chemical preparation method and the prepared hollow glass microspheres and its application"), and its particle size is 20- 80 μm, the acid selected in the acidification treatment is 1mol / L hydrochloric acid, and the resin matrix selected is E51 epoxy resin.

[0056] The steps of the method for improving the mechanical strength of hollow glass microspheres in the present embodiment are as follows:

[0057] First, carry out hollow glass microsphere flotation: put hollow glass microspheres and ethanol or water at a volume ratio of 1:1 to stand and layer, then take the upper floating material, filter, d...

Embodiment 2

[0070] In this example, a composite material is prepared by using hollow glass microspheres treated with a coupling agent. Select self-made hollow glass microspheres (T30, that is, the density is 0.30g / cm 3 ) (the reference application number of self-made hollow glass microspheres in this embodiment is 201210056295.5, and the title of invention is "a hollow glass microsphere soft chemical preparation method and the prepared hollow glass microspheres and its application"), and its particle size is 20- 80 μm, the acid used in the acidification treatment is 0.1mol / L sulfuric acid, the selected coupling agent is KH560, and the selected resin matrix is ​​polyurethane.

[0071] The steps of hollow microsphere surface treatment in the present embodiment are as follows:

[0072] First, carry out hollow glass microsphere flotation: put hollow glass microspheres and ethanol or water at a volume ratio of 1:1 to stand and layer, then take the upper floating material, filter, dry and set ...

Embodiment 3-13

[0076] Embodiment 3-13, concrete implementation steps are carried out by embodiment 1 and embodiment 2, and the density of concrete difference condition and the composite material that obtains is as shown in table 1:

[0077] Table 1

[0078]

[0079]

[0080] Explanation: In the above table 1, the type of hollow glass microspheres in the column ① are self-made microspheres (refer to our previous patent preparation: a soft chemical preparation method of hollow glass microspheres and the prepared hollow glass microspheres and their applications (201210056295.5 )); ② is the product of Zhongke Yali Technology Co., Ltd.; ③ is the product of Zhongke Huaxing New Material Co., Ltd.; ④ is the product of 3M Company in the United States;

[0081] Table 2

[0082]

[0083]

[0084] Table 2 is the performance of the composite material obtained in each embodiment. The uniaxial compressive strength is tested with reference to the national standard: test methods for the perform...

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Abstract

The invention discloses a composite material based on modified hollow glass microspheres. The composite material is prepared from the following raw materials: a resin matrix and the modified hollow glass microspheres. The preparation method of the modified hollow glass microsphere comprises the following steps: carrying out acid leaching treatment on the hollow glass microsphere; and carrying outsurface heat treatment or surface coupling treatment on the hollow glass microspheres subjected to acid leaching treatment to obtain the modified hollow glass microspheres. The composite material hasexcellent mechanical properties and stability. The invention also discloses a preparation method of the composite material.

Description

technical field [0001] The invention relates to the technical field of composite materials. More specifically, it relates to a composite material based on modified hollow glass microspheres and a preparation method thereof. Background technique [0002] With the rapid development of science and technology, the performance improvement of high-end equipment needs to rely on the innovation of new materials. At present, lightweight is an important requirement for performance improvement of various types of equipment, including aviation, aerospace, marine, construction, transportation, sporting goods and other civilian equipment. To achieve density reduction, high-performance composite materials are widely used in the design of advanced devices and functional devices. For example, high-strength composite materials represented by carbon fiber composite materials play an important role in new lightweight materials due to their excellent specific strength and specific stiffness. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/02C08L75/04C08K9/02C08K9/00C08K9/06C08K7/28
CPCC08K9/02C08K9/00C08K9/06C08K7/28C08L63/00C08L75/04
Inventor 安振国袁静张敬杰
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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