Preparation method of white carbon black coated yellow-green fluorescent nano-filler for rubber

A fluorescent nanometer and white carbon black technology is applied in the field of preparation of yellow-green fluorescent nanometer fillers coated with white carbon black for rubber, which can solve the problems of no fluorescence, limited application, etc. dispersive effect

Inactive Publication Date: 2021-02-09
SHANDONG LINGLONG TIRE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, the use of organic fluorescent dyes to prepare organic light-emitting materials with low cost and reliable performance has become a hot spot in the field of optoelectronic materials research. Most organic fluorescent dyes have fluorescent properties only in the corresponding solvents. Aggregation quenching between fluorescent molecules makes them non-fluorescent, which greatly limits their applications as luminescent materials

Method used

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  • Preparation method of white carbon black coated yellow-green fluorescent nano-filler for rubber
  • Preparation method of white carbon black coated yellow-green fluorescent nano-filler for rubber
  • Preparation method of white carbon black coated yellow-green fluorescent nano-filler for rubber

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Experimental program
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Effect test

Embodiment 1

[0028] A preparation method for coating white carbon black for rubber with yellow-green fluorescent nano-filler, the method steps comprising:

[0029] Step 1): Mix 9 mL of toluene with 0.102 g of polyol-type nonionic surfactant Span / Tween (the mass ratio of Span-80 and Tween-80 is 3:1), stir with a magnetic stirrer at 500 r / min 30min, so that the two form a uniform and stable oil phase.

[0030] Step 2): Take 310μL Fc respectively 16 AB aqueous solution and 155 μL FS aqueous solution, first add 465 μL of concentrated ammonia water to the FS aqueous solution, and then add Fc 16 AB aqueous solution, mix and stand for 1min to form an aqueous phase;

[0031] Step 3): Mix the oil phase of step 1) with the water phase of step 2) in a volume ratio of 1:1, and stir for 7 minutes at a rotating speed of 8000r / min to form a microemulsion;

[0032] Step 4): Add 3.8mL tetraethyl orthosilicate to the above microemulsion, and stir for 24 hours at a rotation speed of 300r / min to obtain a p...

Embodiment 2

[0036] A preparation method for coating white carbon black for rubber with yellow-green fluorescent nano-filler, the method steps comprising:

[0037] Step 1): Mix 9 mL of toluene with 0.047 g of polyol-type nonionic surfactant Span / Tween (the mass ratio between Span-80 and Tween-80 is 3:1), and stir with a magnetic stirrer at 500 r / min 40min, so that the two form a uniform and stable oil phase.

[0038] Step 2): Take 310μL Fc respectively 16 AB aqueous solution and 155 μL FS aqueous solution, first add 535 μL concentrated ammonia water to the FS aqueous solution, and then add Fc 16 AB aqueous solution, mix and stand for 2 minutes to form an aqueous phase;

[0039] Step 3): Mix the oil phase and the water phase at a volume ratio of 1:1, and stir for 6 minutes at a rotating speed of 9000r / min to form a microemulsion;

[0040] Step 4): Add 5mL tetraethyl orthosilicate into the above microemulsion, and stir for 20h at a rotation speed of 400r / min;

[0041] Step 5): drying the...

Embodiment 3

[0044] A preparation method for coating white carbon black for rubber with yellow-green fluorescent nano-filler, the method steps comprising:

[0045] Step 1): Mix 9 mL of toluene with 0.204 g of polyol-type nonionic surfactant Span / Tween (the mass ratio between Span-80 and Tween-80 is 3:1), and stir at 500 r / min with a magnetic stirrer 45min to make the two form a uniform and stable oil phase.

[0046] Step 2): Take 310μL Fc respectively 16 AB aqueous solution and 155 μL FS aqueous solution, first add 765 μL of concentrated ammonia water to the FS aqueous solution, and then add Fc 16 AB aqueous solution, mix and stand for 3 minutes to form an aqueous phase;

[0047] Step 3): Mix the oil phase and the water phase at a volume ratio of 1:1, and stir for 5 minutes at a rotating speed of 10000r / min to form a microemulsion;

[0048] Step 4): Add 6 mL of tetraethyl orthosilicate to the above microemulsion, and stir for 16 h at a rotation speed of 500 r / min;

[0049] Step 5): dry...

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Abstract

The invention relates to a preparation method of a white carbon black coated yellow-green fluorescent nano-filler for rubber. The preparation method comprises the following steps: (1) mixing methylbenzene with a polyhydric alcohol type nonionic surfactant Span / Tween to form an oil phase; 2) preparing an aqueous solution with the concentration of 4mmol / L from a cationic surfactant Fc16AB and organic dye molecular fluorescein sodium, and mixing the Fc16AB aqueous solution and an FS aqueous solution in a volume ratio of 2:1 with stronger ammonia water to form an aqueous phase; 3) mixing and stirring the oil phase and the water phase according to a volume ratio of 1: 1 to form a microemulsion; 4) under a stirring condition, adding tetraethoxysilane into the microemulsion, and carrying out a reaction; and 5) drying the precipitate obtained after the reaction in a drying oven to obtain the fluorescent nanoparticles. The preparation method is simple and pollution-free, the nano-particles withyellow-green fluorescence in a solid state are prepared by utilizing a microemulsion method, the application of organic dye molecular fluorescein sodium in the field of rubber is widened, and the visual observation of a filler network structure in the rubber is facilitated.

Description

technical field [0001] The invention relates to a preparation method for coating white carbon black for rubber with yellow-green fluorescent nano-filler, which belongs to the field of nano-material preparation. Background technique [0002] At present, the relationship between the inorganic filler network and its macroscopic mechanical properties is basically limited to some phenomenological descriptions. It is necessary to explore a simple, intuitive and realistic technical means to characterize the filler network structure, and to study its evolution law under stress. , so as to reveal the reinforcing mechanism of inorganic nanoparticles in rubber, and provide technical support for the selection of various rubber fillers and the design of high-performance filled rubber formulations. [0003] As a common anionic organic dye molecule, sodium fluorescein has been widely used in the fields of fluorescent labeling, biological imaging and organic light-emitting materials due to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K9/10C08K7/26C08L21/00
CPCC08K9/10C08K7/26C08L21/00
Inventor 王锋隋鹏亮陈雪梅李秋红李彦果
Owner SHANDONG LINGLONG TIRE
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