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Nano-zirconia-PMMA (polymethyl methacrylate) composite material and preparation method thereof

A technology of nano-zirconia and composite materials, which is applied in the field of high-temperature-resistant nano-zirconia-PMMA composite materials and its preparation, and can solve the problems of insufficient strength, toughness, high-temperature resistance of composite materials, poor product quality stability, and many steps in the preparation method, etc. problems, to achieve the effect of enhancing comprehensive physical and chemical properties, compact preparation process, and excellent corrosion resistance

Inactive Publication Date: 2015-04-29
广州高馨能生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] Although the above-mentioned documents have improved the thermal properties and mechanical properties of PMMA through the above-mentioned modification of PMMA, and widened the scope of use of PMMA, the strength, toughness and high temperature resistance of the obtained composite material are still obviously insufficient, and it is difficult to further use it as a raw material. Preparation of materials or products with high temperature resistance and good comprehensive physical and chemical properties; at the same time, the preparation method adopted has many steps, the reaction process is complicated, the control is difficult, the product quality stability is poor, and it is not easy to realize industrialization

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  • Nano-zirconia-PMMA (polymethyl methacrylate) composite material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0041] The nano-zirconia-PMMA composite material provided by the embodiment of the present invention is prepared by in-situ polymerization of MMA and modified nano-zirconia; the modified nano-zirconia is a coupling agent surface-modified nano-zirconia, which The raw material components include: 3-15 parts of modified nano zirconia, 28-54 parts of MMA, and the grafting rate of PMMA on the surface of the modified nano zirconia is not less than 19%.

[0042] Wherein, the preparation steps of the modified nano-zirconia are as follows:

[0043] 1) Add 5-14 parts of nano zirconia particles, 180-450 parts of absolute ethanol, and 2-4 parts of silane coupling agent into the reactor, stir evenly, and magnetically stir at 40-60°C for 12 hours.

[0044] 2) After the reaction is completed, filter, wash with absolute ethanol, and dry to obtain a silane coupling agent-modified nano-zirconia product powder.

[0045] The nano-zirconia-PMMA composite material is used as a raw material to prep...

Embodiment 2

[0061] Nano zirconia-PMMA composite material provided by the present invention and preparation method thereof are basically the same as in Example 1, the difference being:

[0062] The raw material components include: 3 parts of modified nano zirconia, 28 parts of MMA; the grafting rate of PMMA on the surface of the modified nano zirconia is 20%.

[0063] The nano zirconia-PMMA composite material and its preparation method comprise the steps of:

[0064] (1), surface modification of nano-zirconia

[0065] a. Add 5 parts of nano-zirconia particles, 180 parts of absolute ethanol, and 2 parts of silane coupling agent into the reactor, specifically using KH550, stir evenly, and magnetically stir at 40°C for 12 hours;

[0066] b. After the reaction is finished, filter, wash with absolute ethanol, and dry to obtain a silane coupling agent modified nano-zirconia product powder;

[0067] (2), MMA grafted on the surface of nano-zirconia

[0068] c. Add 3 parts of modified nano-zirco...

Embodiment 3

[0074] Nano zirconium oxide-PMMA composite material provided by the present invention and preparation method thereof are basically all substantially the same as in Embodiment 1 and 2, and its difference is:

[0075] The raw material components include: 6 parts of modified nano zirconia and 34 parts of MMA; the grafting rate of PMMA on the surface of the modified nano zirconia is 27.1%.

[0076] (1), surface modification of nano-zirconia

[0077] a. Add 7 parts of nano-sized zirconia particles, 220 parts of absolute ethanol, and 3 parts of silane coupling agent KH560 into the reactor, stir evenly, and magnetically stir at 46°C for 12 hours;

[0078] b. After the reaction is finished, filter, wash with absolute ethanol, and dry to obtain a silane coupling agent modified nano-zirconia product powder;

[0079] (2), MMA grafted on the surface of nano-zirconia

[0080] c. Add 6 parts of modified nano-zirconia, 34 parts of MMA monomer, and 14 parts of acetone into the reactor, stir...

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Abstract

The invention discloses a nano-zirconia-PMMA (polymethyl methacrylate) composite material. The nano-zirconia-PMMA composite material is characterized by being prepared from MMA (methl methacrylate) monomers and modified nano-zirconia through in-situ polymerization, wherein modified nano-zirconia adopts coupling agent surface modified nano-zirconia; a grafting ratio of PMMA on the surface of modified nano-zirconia is not lower than 19%; and the composite material comprises the raw materials in parts by mass as follows: 3-15 parts of modified nano-zirconia and 28-54 parts of MMA monomers. The invention further provides a preparation method of the composite material. According to the composite material prepared with the in-situ polymerization method, force, strength and heat resistance are remarkably improved, and the composite material can be used in the fields of plastics, rubber, adhesives and the like.

Description

technical field [0001] The invention relates to the technical field of nano composite materials, in particular to a high temperature resistant nano zirconia-PMMA composite material and a preparation method thereof. Background technique [0002] Nanoparticles are aggregates of atoms and molecules on the nanometer scale, generally with a particle size between 1 and 100nm, belonging to the category of colloidal particle size. They are in the transition zone between atomic clusters and macroscopic objects, between microscopic systems and macroscopic systems, and are groups composed of a small number of atoms or molecules, so they are neither typical microscopic systems nor typical macroscopic systems. Therefore, nanoparticles should have some novel physical and chemical properties. Nanoparticles differ from macroscopic object structures in that their surface area accounts for a large proportion, and surface atoms have neither long-program nor short-program amorphous layers. It...

Claims

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Application Information

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IPC IPC(8): C08F292/00C08F220/14
Inventor 孙明科潘延华冯蓉
Owner 广州高馨能生物科技有限公司
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