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A single-atom zinc material that can replace zinc oxide used in the rubber field and its preparation method

A zinc oxide and atom technology, applied in the field of rubber additives, can solve the problems of high zinc oxide content and waste of zinc resources, and achieve the effects of ensuring driving safety, prolonging service life and reducing residual pollution.

Active Publication Date: 2022-05-13
LINKWAY TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems of high zinc oxide content and waste of zinc resources in the related art, the application provides a single-atom zinc material that can replace zinc oxide used in the rubber field and its preparation method

Method used

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  • A single-atom zinc material that can replace zinc oxide used in the rubber field and its preparation method
  • A single-atom zinc material that can replace zinc oxide used in the rubber field and its preparation method
  • A single-atom zinc material that can replace zinc oxide used in the rubber field and its preparation method

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Embodiment 1

[0038] refer to figure 1 , is a single-atom zinc material that can replace zinc oxide in the rubber field disclosed in this application. The single-atom zinc material is composed of a carrier and a transition metal. The carrier is 100nm nano-silicon dioxide, the transition metal is zinc, and the zinc Atoms are anchored on defect sites on the surface of the carrier in the form of single atoms, and the mass ratio of single-atom zinc to nano-silicon dioxide is 1:10.

[0039] A method for preparing a single-atom zinc material that can replace zinc oxide used in the rubber field, comprising the following steps:

[0040] (1) Add 500nm nano-silica to a planetary ball mill for ball milling, the ball milling speed is 450rpm, and the ball milling time is 30min, at this time the carrier particle size is 100nm, ready for use;

[0041] (2) Weigh 1000g of the 100nm nano-silica carrier in step (1), add it to 1L of 1mol / L sodium hydroxide aqueous solution, control the rotation speed at 1000r...

Embodiment 2

[0045]The difference between embodiment 2 and embodiment 1 is:

[0046] A method for preparing a single-atom zinc material that can replace zinc oxide used in the rubber field, comprising the following steps:

[0047] (1) Add 500nm nano-silica to a planetary ball mill for ball milling, the ball milling speed is 450rpm, and the ball milling time is 30min, at this time the carrier particle size is 100nm, ready for use;

[0048] (2) Weigh 1000g of the 100nm nano-silica carrier in (1), add it to 1L of 1mol / L sodium hydroxide aqueous solution at a speed of 1000rpm, raise the temperature to 80°C, and fully react for 36h. Construct sufficient defect sites, then filter, dry, and fully grind with an agate mortar for 20 minutes, and set aside;

[0049] (3) Mix the carrier modified in (2) with a zinc nitrate solution with a zinc ion content of 200g / L, heat up to 60°C, stir thoroughly for 24h, remove the supernatant, centrifuge, and place at 120°C Dried in a blast drying oven for 12 hou...

Embodiment 3

[0052] The difference between embodiment 3 and embodiment 1 is:

[0053] A method for preparing a single-atom zinc material that can replace zinc oxide used in the rubber field, comprising the following steps:

[0054] (1) Add 500nm nano-silica to a planetary ball mill for ball milling, the ball milling speed is 450rpm, and the ball milling time is 30min, at this time the carrier particle size is 100nm, ready for use;

[0055] (2) Weigh 1000g of the 100nm nano-calcium carbonate carrier in (1), add it to 1L of 1mol / L sodium hydroxide aqueous solution at a speed of 1000rpm, heat up to 80°C, and fully react for 36 hours to build sufficient defects on the surface of the carrier site, then filtered, dried, fully ground, and set aside;

[0056] (3) Mix the carrier modified in (2) with a zinc nitrate solution with a zinc ion content of 100g / L, heat up to 60°C, stir thoroughly for 24h, remove the supernatant, centrifuge, and place at 120°C Dried in a blast drying oven for 12 hours. ...

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Abstract

The present application relates to the technical field of rubber additives, in particular to a single-atom zinc material that can replace zinc oxide used in the rubber field and a preparation method thereof. A single-atom zinc material that can replace zinc oxide used in the rubber field is composed of a carrier and a transition metal. The carrier is one or more of nano-silica and nano-calcium carbonate; the transition metal is zinc; The transition metal is anchored on the defect site on the surface of the carrier in the form of a single atom. The invention adopts a brand-new single-atom technology, which is a newly developed single-atom zinc material. It is used in the field of rubber and can completely replace zinc oxide. The amount of metal zinc can be reduced by 60%-70%, and the resource of non-ferrous metal zinc can be greatly saved. , reduce carbon emissions caused by related smelting, and effectively reduce heavy metal residual pollution to the environment, which is easy to realize industrialization.

Description

technical field [0001] The present application relates to the field of rubber additives, in particular to a single-atom zinc material that can replace zinc oxide used in the rubber field and a preparation method thereof. Background technique [0002] Zinc oxide has broad application prospects in the fields of rubber, coatings, catalysts and chemical fibers. At present, zinc oxide is an indispensable and irreplaceable vulcanization activator for the development of the rubber industry. According to incomplete statistics: 50% of industrially produced zinc oxide flows to the rubber industry, mainly because zinc oxide is one of the raw materials (vulcanization active agent) for rubber manufacturing and is an important material for automobile tires. [0003] Zinc oxide contains trace heavy metals (lead oxide, cadmium oxide) and "zinc ions" in zinc oxide. The presence of lead, cadmium and "zinc ions" has a catalytic effect on the aging of tire rubber. In addition, when the car is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K9/12C08K3/36C08K3/26C08K3/08C08K3/22C08L21/00
CPCC08K9/12C08K3/36C08K3/26C08K3/08C08K3/22C08K2003/265C08K2003/0893C08K2003/2296C08L2201/08C08L21/00C01B33/12B60C1/00C09C1/04C08K2201/011
Inventor 赵超王晶黄红锋吴宇波
Owner LINKWAY TECH CO LTD
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