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Functional mesoporous silicon dioxide nanoparticles with effect of resisting ageing and preparing method and application of functional mesoporous silicon dioxide nanoparticles

A technology of mesoporous silica and nanoparticles, which is applied in the field of functional mesoporous silica nanoparticles and their preparation, can solve the problem of non-reported in the field of multifunctional polymer additives, reduction of physical and mechanical properties, and anti-aging effects. Reduce and other problems, achieve good application prospects, reduce migration, and improve physical and mechanical properties.

Inactive Publication Date: 2017-11-10
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Mesoporous silica is a kind of nanoparticle with unique mesoporous structure and high specific surface area. As a nanocarrier, it has been widely used in the field of biomedicine, especially in the sustained release of drugs. However, in the field of multifunctional polymer additives No literature report
[0003] During processing and use, rubber composite materials are susceptible to aging under the influence of heat, oxygen, and light, resulting in a decrease in physical and mechanical properties
After ordinary commercial anti-aging agents are added to the rubber matrix, they have the disadvantage of easy migration and migration, resulting in a decrease in the anti-aging effect

Method used

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  • Functional mesoporous silicon dioxide nanoparticles with effect of resisting ageing and preparing method and application of functional mesoporous silicon dioxide nanoparticles
  • Functional mesoporous silicon dioxide nanoparticles with effect of resisting ageing and preparing method and application of functional mesoporous silicon dioxide nanoparticles
  • Functional mesoporous silicon dioxide nanoparticles with effect of resisting ageing and preparing method and application of functional mesoporous silicon dioxide nanoparticles

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Dissolve 0.35g of surfactant (CTAB) and 3.0g of ammonia water (concentration: 25wt%) in 140ml of deionized water, stir at 80°C for 0.5h, then add 3.0g of tetraethyl orthosilicate (TEOS) dropwise to The resulting solution was stirred for 2 hours, centrifuged and dried, and placed in a muffle furnace at 700° C. for 3 hours to remove residual surfactant (CTAB) to obtain mesoporous silica nanoparticles (MS). figure 2 It is a transmission electron microscope picture of the obtained mesoporous silica nanoparticles. It can be seen from the figure that mesoporous silica nanoparticles have a unique nano-mesoporous structure, a large specific surface area, and a particle size of about 20-50nm.

[0034] Add 8 g of prepared mesoporous silica nanoparticles (MS) and 2.4 g of silane coupling agent (KH560) into a three-necked flask filled with absolute ethanol (150 ml), and react at 90 ° C for 12 h to obtain the modified mesoporous Porous silica intermediate product (m-MS); then reac...

Embodiment 2

[0041] Dissolve 0.4g of surfactant (CTAC) and 3.0g of ammonia water (concentration: 25wt%) in 150ml of deionized water, stir at 60°C for 2h, then add 3.0g of tetraethyl orthosilicate dropwise to the resulting solution , stirred and reacted for 5 h, and after centrifugal drying, placed in a muffle furnace at 800° C. for 2 h to remove residual surfactant (CTAC) to obtain the desired mesoporous silica nanoparticles. Take 15g of prepared mesoporous silica particles in 150ml of absolute ethanol, then add 0.75g of γ-(2,3-glycidoxy)propyltrimethoxysilane, and react at 120°C for 10h to obtain an intermediate product (m-MS), then 1.2g of p-aminodiphenylamine and the intermediate product of the previous step were stirred and reacted for 8h at 100°C to obtain functional mesoporous silica nanoparticles (MS-s-RT) with anti-aging effect ). 30 g of the prepared functional mesoporous silica nanoparticles were added to 100 g of styrene-butadiene rubber to prepare a styrene-butadiene rubber co...

Embodiment 3

[0045] Dissolve 0.3g of surfactant (CTAB) and 4.0g of ammonia water (concentration: 25wt%) in 150ml of deionized water, stir at 50°C for 1h, then add 2.0g of tetraethyl orthosilicate dropwise to the resulting solution , stirred and reacted for 1 h, and after centrifugal drying, placed in a muffle furnace at 500° C. for 5 h to remove residual surfactant (CTAB) to obtain the desired mesoporous silica nanoparticles. Take 15g of mesoporous silica nanoparticles, then add 1.5g of γ-(2,3-epoxypropoxy)propyltrimethoxysilane, and react at 80°C for 24h to obtain an intermediate product (m-MS). To the mixture, 4.5 g of p-aminodiphenylamine was further added, and the mixture was stirred and reacted at 60° C. for 12 hours to obtain the desired functional mesoporous silica nanoparticles (MS-s-RT). After adding 30phr functional mesoporous silica nanoparticles to 100phr styrene-butadiene rubber, compared with SBR / m-MS / RT composites, the oxidation induction period of SBR / MS-s-RT composites was...

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Abstract

The invention discloses functional mesoporous silicon dioxide nanoparticles with an effect of resisting ageing and a preparing method and application of the functional mesoporous silicon dioxide nanoparticles. According to the preparing method, a sol-gel method is adopted to prepare mesoporous silicon dioxide particles, and then the mesoporous silicon dioxide particles are mixed with a silane coupling agent to conduct a reaction to obtain an intermediate product. The intermediate product is mixed with an ageing-resistant agent or an ageing-resistant agent intermediate to conduct a reaction to obtain the functional mesoporous silicon dioxide nanoparticles. The functional mesoporous silicon dioxide nanoparticles are added into a rubber matrix, and a rubber composite material with a good reinforcing effect and an ageing-resistant effect is obtained. The functional mesoporous silicon dioxide nanoparticles can effectively improve the ageing-resistant performance and the physical and mechanical performance of the rubber composite material, and also have a very good application prospect in a high-performance rubber composite material; meanwhile, the method in which the mesoporous silicon dioxide nanoparticles serve as nanometer carriers to load high-molecular auxiliaries has an important reference significance in preparing other functional high-molecular auxiliaries.

Description

technical field [0001] The invention belongs to the field of functional nanoparticles and high-performance rubber composite materials, and specifically relates to a functional mesoporous silica nanoparticle with an anti-aging effect and a preparation method and application thereof. Background technique [0002] Nanoparticles play a pivotal role in the fields of medicine, biotechnology, composite materials, optoelectronic devices, sensors, and catalysis, and their application fields are closely related to the particle size, morphology, and surface activity of inorganic nanoparticles. Mesoporous silica is a kind of nanoparticle with unique mesoporous structure and high specific surface area. As a nanocarrier, it has been widely used in the field of biomedicine, especially in the sustained release of drugs. However, in the field of multifunctional polymer additives There is no literature report. [0003] Rubber composite materials are susceptible to aging under the influence o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K9/06C08K9/04C08K7/26C08K3/36C08L7/00C08L9/02C08L9/06C08L15/00C08L13/00
CPCC08K9/06C08K3/36C08K7/26C08K9/04C08K2201/011C08L2201/08C08L7/00C08L9/02C08L9/06C08L15/00C08L13/00
Inventor 贾志欣胡德超林静钟邦超罗远芳贾德民
Owner SOUTH CHINA UNIV OF TECH
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