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Loaded antistatic agent encapsulated in modified nano-mesoporous material and its preparation method and application

A technology of nano-mesoporous materials and antistatic agents, which is applied in the field of antistatic agents and their preparation, can solve the problems of reducing the heat-resistant temperature and surface properties of materials, the dependence of environmental humidity that is not resistant to scrubbing, and poor antistatic durability. Achieve the effects of improving orderly migration, improving timeliness and durability, and reducing timeliness

Inactive Publication Date: 2018-10-16
FUDAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main disadvantages of surfactant-type antistatic agents are that they have poor antistatic durability, are not resistant to scrubbing, and are highly dependent on environmental humidity, which reduces the heat-resistant temperature and surface properties of the material, and it has a negative impact on the environment after it is detached from the polymer substrate. influences

Method used

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  • Loaded antistatic agent encapsulated in modified nano-mesoporous material and its preparation method and application
  • Loaded antistatic agent encapsulated in modified nano-mesoporous material and its preparation method and application
  • Loaded antistatic agent encapsulated in modified nano-mesoporous material and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) Modification of nano-mesoporous materials

[0032]Mix 1.0 g of nano-mesoporous material SBA-15 with 50 mL of absolute ethanol and ultrasonically disperse for 15 minutes to obtain a SBA-15 dispersion; dissolve 3 g of 3-aminopropyltriethoxysilane (APTES) in absolute ethanol APTES solution with a concentration of 10 wt% was obtained in APTES solution; the APTES solution was mixed with the SBA-15 dispersion and refluxed for 12 hours; after cooling to room temperature, it was filtered, washed and dried to obtain the pore wall modified nano-mesoporous material mSBA-15. figure 1 and Table 1 for SBA-15 and mSBA-15 Adsorption / desorption test results show that both SBA-15 and mSBA-15 have the characteristics of mesoporous materials, which are typical mesoporous materials, and due to the modification of APTES, the specific surface area of ​​mSBA-15 ( ), pore volume ( ), average pore diameter ( ) and maximum aperture ( ) are smaller than those of SBA-15.

[0033] Tabl...

Embodiment 2

[0042] Mix 1.0 g of nano-mesoporous material SBA-15 with 50 mL of absolute ethanol and ultrasonically disperse for 15 minutes to obtain a SBA-15 dispersion; dissolve 2.0 g of APTES in absolute ethanol to obtain a 10 wt% APTES solution; After mixing the APTES solution and the SBA-15 dispersion, reflux for 12 hours; after cooling to room temperature, filter, wash, and dry to obtain the pore wall modified nano-mesoporous material mSBA-15 ( figure 1 ,Table 1);

[0043] (2) Preparation of surfactant-type antistatic agent / pore wall modified nano-mesoporous material-loaded antistatic agent

[0044] Dissolve 1.0 g of surfactant-type antistatic agent B (Table 2) in 33 mL of absolute ethanol; add 0.5 g of mSBA-15 into the above-mentioned absolute ethanol solution, and disperse ultrasonically for 30 minutes; Stir for 60 hours, filter, wash and dry to obtain the load-type antistatic agent——antistatic agent B / mSBA-15. According to the TGA curve ( figure 2 b) and formula (1) to calculat...

Embodiment 3

[0046] (1) Modification of nano-mesoporous materials

[0047] Mix 1.0 g of nano-mesoporous material MCM-41 with 40 mL of absolute ethanol and ultrasonically disperse for 15 minutes to obtain the MCM-41 dispersion; dissolve 2.5 g of APTES in absolute ethanol to obtain a 20 wt% APTES solution; After mixing the APTES solution and the MCM-41 dispersion, reflux for 24 hours; after cooling to room temperature, filter, wash, and dry to obtain the pore wall modified nano-mesoporous material mMCM-41;

[0048] (2) Preparation of surfactant-type antistatic agent / pore wall modified nano-mesoporous material-loaded antistatic agent

[0049] Dissolve 1.0 g of surfactant-type antistatic agent B (Table 2) in 33 mL of absolute ethanol; add 0.5 g of mMCM-41 into the above absolute ethanol solution, and disperse ultrasonically for 30 minutes; Stir for 55 hours, filter, wash, and dry to obtain the loaded antistatic agent——antistatic agent B / mMCM-41. According to the TGA curve ( figure 2 c) and...

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Abstract

The invention belongs to the technical field of high polymer materials, and particularly relates to a preparation method and application of a novel long-acting antistatic agent. The novel long-acting supported antistatic agent is prepared by taking a hole wall-modified nano-mesoporous material as a carrier and sealing traditional commercialized micromolecular surfactant type antistatic agent molecules in the hole wall-modified nano-mesoporous material and applied to antistatic modification of a high polymer material. The novel long-acting supported antistatic agent not only has the good antistatic performance of a traditional micromolecular surfactant type antistatic agent, but also has the good antistatic durability through the slow release effect of the nano-mesoporous material and the effects of physical blocking, hydrogen bonding, electrostatic attracting and the like of a hole wall-modified functional group on the micromolecular antistatic agent. The supported antistatic agent is applied to antistatic modification of polystyrene, the surface resistivity of polystyrene is effectively reduced, and the antistatic performance is hardly reduced after water washing is performed for multiple times. The method for preparing the supported antistatic agent is simple and beneficial for actual application and popularization.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to an antistatic agent encapsulated in a modified nanometer mesoporous material and a preparation method and application thereof. Background technique [0002] General-purpose polymer materials have been widely used in various aspects of industry and life due to their excellent processing properties, mechanical properties and light weight. General-purpose polymer materials usually have extremely high resistivity. During their use, due to external environmental influences such as friction and external magnetic field induction, static charges are easy to accumulate, which will cause dust on the surface of the device, film closure, electronic device breakdown, electric shock and explosion. and other disasters. In order to eliminate static electricity disasters, the surface resistivity ( )limited in The following, commonly used polymer materials to reduce Th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K9/12C08L25/06
CPCC08K9/12C08L2201/04C08L25/06
Inventor 唐萍司晶晶李锐
Owner FUDAN UNIV
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