Preparation method and application of zinc oxide high polymer

A high-polymer, zinc oxide technology, applied in pharmaceutical formulations, dental preparations, mold cups, etc., can solve the problems of easy agglomeration of nano-zinc oxide and hindering application efficiency.

Active Publication Date: 2021-06-04
QINGDAO UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the characteristics of high surface energy and growth along specific crystal planes, nano-zinc oxide is very easy to agglomerate, which seriously hinders its application efficiency in rubber composites [Journal of the American Chemical Society, 2005, 127 (38 ): 13331-13337; Journal of Applied Polymer Science, 2012, 124(4): 3099-3107]

Method used

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  • Preparation method and application of zinc oxide high polymer
  • Preparation method and application of zinc oxide high polymer
  • Preparation method and application of zinc oxide high polymer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A preparation method of zinc oxide polymer, comprising the following steps:

[0028] 1) In an anhydrous and oxygen-free environment, 18Kg Zn(NO 3 ) 2 ·6H 2 O was dissolved in 200L of anhydrous methanol. After complete dissolution, 0.9 Kg of urea and 39 Kg of benzyl alcohol were added to the mixture. Under nitrogen atmosphere, after stirring in the autoclave for 6 hours, the temperature was raised to 200° C. for 10 hours, and then heated to 280° C. for 5 hours to remove internal low boilers. Centrifuge to collect the dry gray powder, then calcinate to 600°C at a heating rate of 5°C / min, and then keep at 600°C for 6h to prepare nano-zinc oxide carrier particles with many defects on the surface.

[0029] 2) Add 4000g of nano-zinc oxide carrier particles prepared in step 1) and 1000g of anhydrous magnesium chloride into a dry and sealed ball mill jar replaced by high-purity nitrogen three times under a nitrogen atmosphere, and then inject 15mL of analytically pure titan...

Embodiment 2

[0032] A preparation method of zinc oxide polymer, comprising the following steps:

[0033] 1) In an anhydrous and oxygen-free environment, 18Kg Zn(NO 3 ) 2 ·6H 2 O was dissolved in 200L of anhydrous methanol. After complete dissolution, 0.9 Kg of urea and 39 Kg of benzyl alcohol were added to the mixture. Under nitrogen atmosphere, after stirring in the autoclave for 6 hours, the temperature was raised to 200° C. for 10 hours, and then heated to 280° C. for 5 hours to remove internal low boilers. Centrifuge to collect the dry gray powder, then calcinate to 600°C at a heating rate of 5°C / min, and then keep at 600°C for 6h to prepare nano-zinc oxide carrier particles with many defects on the surface.

[0034] 2) Add 4000g of nano-zinc oxide carrier particles prepared in step 1) and 1000g of anhydrous magnesium chloride into a dry and sealed ball mill jar replaced by high-purity nitrogen three times under a nitrogen atmosphere, and then inject 15mL of analytically pure titan...

Embodiment 3

[0037] A preparation method of zinc oxide polymer, comprising the following steps:

[0038] 1) In an anhydrous and oxygen-free environment, 18Kg Zn(NO 3 ) 2 ·6H 2 O was dissolved in 200L of anhydrous methanol. After complete dissolution, 0.9 Kg of urea and 39 Kg of benzyl alcohol were added to the mixture. Under nitrogen atmosphere, after stirring in the autoclave for 6 hours, the temperature was raised to 200° C. for 10 hours, and then heated to 280° C. for 5 hours to remove internal low boilers. Centrifuge to collect the dry gray powder, then calcinate to 600°C at a heating rate of 5°C / min, and then keep at 600°C for 6h to prepare nano-zinc oxide carrier particles with many defects on the surface.

[0039] 2) Add 4000g of nano-zinc oxide carrier particles prepared in step 1) and 1000g of anhydrous magnesium chloride into a dry and sealed ball mill jar replaced by high-purity nitrogen three times under a nitrogen atmosphere, and then inject 15mL of analytically pure titan...

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Abstract

The invention discloses a preparation method and application of a zinc oxide high polymer. The preparation method comprises the following steps: 1) preparing a nano zinc oxide carrier with more defects on the surface; 2) preparing the olefin polymerization catalyst: adding the nano-zinc oxide carrier and magnesium chloride into a ball-milling tank in a nitrogen environment, injecting a titanium metal compound, and putting the ball-milling tank into a wet-process ball mill for grinding to prepare the olefin polymerization catalyst; 3) preparing the zinc oxide high polymer. The zinc oxide high polymer prepared by the method has a zinc oxide active component, the zinc oxide content can reach more than 80%, and the zinc oxide high polymer can be used as a zinc oxide carrier to reduce the use amount of common zinc oxide, and can also be directly applied to the fields of gutta-percha points, medical splints and the like.

Description

technical field [0001] The invention relates to the technical field of fine chemicals, in particular to a preparation method and application of a zinc oxide high polymer. Background technique [0002] In recent years, due to its unique optical, catalytic, piezoelectric and other physical and chemical properties, zinc oxide nanoparticles have unique photocatalytic properties, high broad-spectrum antibacterial activity, and long-term stability under extreme conditions. Biomedical fields such as sensing and detection, drug delivery, bioimaging, antibacterial, and tumor cell targeted killing have great development prospects. However, due to the strong van der Waals force between zinc oxide nanoparticles and the high surface energy caused by its high reactivity, it is easy to agglomerate, and the dispersion stability of nanoparticles is greatly reduced, which greatly limits its application in various fields. . [0003] At the same time, as an activator to accelerate vulcanizati...

Claims

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Application Information

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IPC IPC(8): C08F136/08C08F4/02C08F4/642C08F2/44C08K3/22A61K6/71A61L31/04
CPCC08F136/08C08F4/025C08F4/022C08F4/642C08F2/44C08K3/22A61L31/04A61K6/71C08K2201/011
Inventor 曹兰郑雷臧晓燕王志晔荣先超蒲诚勇
Owner QINGDAO UNIV OF SCI & TECH
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