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A kind of nano-mof material and its preparation method and application

A nano and reactive technology, applied in the fields of nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve the problems of reducing the zinc content of rubber products, the fluctuation of the composition is large, and the failure to achieve it, so as to reduce the zinc content. , stable quality, good dispersion effect

Active Publication Date: 2022-05-03
曾能
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its application range is limited, and it needs to be used with zinc oxide, which has not achieved the effect of reducing the zinc content in rubber products
There are also active carriers used to prepare low-zinc vulcanization activators, and natural minerals such as clay are used as carriers, because natural minerals exist in nature, and their components fluctuate greatly, which will inevitably affect the quality stability of low-zinc activators

Method used

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  • A kind of nano-mof material and its preparation method and application
  • A kind of nano-mof material and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] At room temperature, saponify and dissolve 1mol terephthalic acid and 2mol sodium hydroxide solution to obtain saponification solution A, configure 2mol zinc chloride and 1mol calcium chloride solution to obtain salt solution B; configure 4mol sodium hydroxide solution as a precipitant C, three kinds of liquids A, B, and C flow into the bubble liquid film reactor concurrently, the speed of the bubble-cap disc stirrer is stabilized at 2500 rpm, the reaction temperature is 25°C, and the reaction time is 1min, liquids A, B, and C are divided into liquid films by a large number of accumulated bubbles in the bubble liquid film reactor, and the thickness of the liquid film is uniform. core, while zinc, calcium ions and OH - Precipitation and crystallization nucleation, when the crystal size reaches a certain level, the surface tension of the liquid film is not enough to support the strength of the liquid film, the liquid film ruptures, and the surface of the crystal particles...

Embodiment 2

[0036] Under normal temperature, saponify and dissolve 1mol terephthalic acid and 1.2mol sodium hydroxide solution to obtain saponification solution A, configure 2mol zinc sulfate solution to obtain salt solution B, configure 3mol calcium hydroxide solution as precipitant C, mix A, The three liquids of B and C flow into the bubble liquid film reactor concurrently, the speed of the bubble-cap disc agitator is stabilized at 2500 rpm, the reaction temperature is 45°C, and the reaction time is 1min, A and B , Liquid C is divided into a liquid film by a large number of accumulated bubbles in the bubble liquid film reactor. Calcium ions and OH - Precipitation and crystallization nucleation, when the crystal size reaches a certain level, the surface tension of the liquid film is not enough to support the strength of the liquid film, the liquid film ruptures, and the surface of the crystal particles is occupied by a large number of tiny bubbles caused by the rupture of the liquid film...

Embodiment 3

[0039]At room temperature, saponify and dissolve 1mol terephthalic acid and 2mol sodium hydroxide solution. After the dissolution is complete, wait to obtain saponification solution A. Configure 2mol zinc chloride and 1mol calcium chloride solution to obtain salt solution B. Configure 4mol hydroxide Sodium solution is used as precipitant C, three kinds of liquids A, B, and C are flowed into the bubble liquid film reactor according to a certain ratio, and the speed of the bubble-cap disc stirrer is stabilized at 2500 rpm, and the reaction temperature is 55 ℃, the reaction time is 0.5min, A, B, and C liquids are divided into liquid films by a large number of accumulated bubbles in the bubble liquid film reactor, and the thickness of the liquid film is uniform. In the liquid film, zinc, calcium ions and p-benzene Diformate ions coordinate a large number of crystallization nuclei, and zinc, calcium ions and OH - Precipitation and crystallization nucleation, when the crystal size r...

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Abstract

The invention belongs to the technical field of rubber processing, and discloses a nanometer MOF material, a preparation method and an application thereof. The nano-MOF material is mainly prepared by reacting a water-soluble salt containing zinc, an organic ligand containing a benzene ring, and a sedimentation agent through a bubble film. The nano-MOF material has good dispersibility in the rubber polymer, strong compatibility, and stable quality; as a rubber vulcanization activator, the metal-organic framework structure is utilized to have a large specific surface area and a similar phase of the rubber material. Solubilization effect, can effectively play its role in promoting activation in rubber, and effectively reduce the zinc content in rubber.

Description

technical field [0001] The invention belongs to the technical field of rubber processing, and in particular relates to a nanometer MOF material and its preparation method and application. Background technique [0002] Rubber vulcanization activator refers to a type of accelerator that can increase the activity of the accelerator after adding the rubber, reduce the amount of the accelerator, and shorten the vulcanization time to increase the crosslinking. Zinc oxide is used as a rubber vulcanization activator, and since the 1920s and 1930s, its usage has been gradually reduced to a quarter of the previous one. Although zinc oxide plays a very important role in the rubber industry, the release of zinc during the production, use, and recycling of rubber products will have a serious impact on human health, the environment, and especially aquatic organisms. According to EU Directive 2003 / 105 / EC, zinc oxide is classified as N category, which is an environmentally harmful substanc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G83/00C08L21/00C08L87/00B82Y30/00B82Y40/00
CPCC08G83/008C08L21/00B82Y30/00B82Y40/00C08L87/00
Inventor 曾能
Owner 曾能