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Preparation method of natural astaxanthin/silicon dioxide rubber nanocomposite material

A technology of natural astaxanthin and silica, which is applied in the field of preparation of natural astaxanthin/silica rubber nanocomposite materials, can solve the problems of easy agglomeration of rubber, difficult dispersion of silica, and easy aging, and achieves an improved phase. Capacitance, inhibiting aging, improving dispersibility

Inactive Publication Date: 2019-06-25
沭阳乐福橡塑工业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, this patent proposes to construct a composite material of natural astaxanthin and silicon dioxide, which simultaneously solves the problems of difficult dispersion of silicon dioxide in rubber, easy agglomeration and easy aging of rubber

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 1phr natural astaxanthin and 50phr silicon dioxide were mechanically stirred and mixed for 30min at room temperature, and the stirring speed was 1000rpm. Disperse the mixture obtained in the above step in 300ml of ethyl acetate solution, let it stand for 30 minutes, and then dry it in a vacuum oven at 30°C to obtain natural astaxanthin / silicon dioxide composite particles.

[0024] Put 100phr natural rubber, 50phr natural astaxanthin / silicon dioxide composite particles, 5phr zinc oxide, 2phr stearic acid, 1.5phr N-tert-butyl-2-benzothiazolylsulfenamide (NS) into the container in sequence Mixing and stirring were carried out within the mixing chamber, the stirring speed was 70 rpm, the stirring time was 10 min, and the reaction temperature was 90°C. Finally, 2.2phr sulfur was added into the container to disperse evenly, the dispersion temperature was 50°C, the stirring speed was 82rpm, and the stirring time was 10min, to obtain material A with uniform dispersion of each c...

Embodiment 2

[0027] 1phr natural astaxanthin and 50phr silicon dioxide were mechanically stirred and mixed for 30 minutes at room temperature, and the stirring speed was 1000rpm to obtain natural astaxanthin / silicon dioxide composite particles

[0028] Put 100phr natural rubber, 50phr natural astaxanthin / silicon dioxide composite particles, 5phr zinc oxide, 2phr stearic acid, 1.5phr N-tert-butyl-2-benzothiazolylsulfenamide (NS) into the container in sequence Mixing and stirring were carried out within the mixing chamber, the stirring speed was 70 rpm, the stirring time was 10 min, and the reaction temperature was 90°C. Finally, 2.2phr sulfur was added into the container to disperse evenly, the dispersion temperature was 50°C, the stirring speed was 82rpm, and the stirring time was 10min, to obtain material A with uniform dispersion of each component;

[0029] The material A was vulcanized at 150°C, and after 10 minutes, the natural astaxanthin / silica rubber nanocomposite material Asta-1 wa...

Embodiment 3

[0031] Put 100phr natural rubber, 50phr silicon dioxide, 5phr zinc oxide, 2phr stearic acid, 1.5phr N-tert-butyl-2-benzothiazolyl sulfenamide (NS) into the container in turn for mixing and stirring, the stirring speed 70rpm, stirring time 10min, reaction temperature 90°C. Finally, 2.2phr sulfur was added into the container to disperse evenly, the dispersion temperature was 50°C, the stirring speed was 82rpm, and the stirring time was 10min, to obtain material A with uniform dispersion of each component;

[0032] The material A was vulcanized at 150°C, and after 10 minutes, the silica rubber nanocomposite material Asta was obtained;

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Abstract

The invention provides a preparation method of a natural astaxanthin / silicon dioxide rubber nanocomposite material. The invention constructs a composite material of renewable raw material natural astaxanthin and silicon dioxide, at the same time solves the defects of difficult dispersion and easy agglomeration of silicon dioxide in rubber, and prolongs the natural process of rubber aging. The method mainly utilizes the mixing process of natural astaxanthin and silicon dioxide to obtain natural astaxanthin / silicon dioxide nanocomposite particles, and finally the composite particles are compounded with rubber to obtain the novel natural astaxanthin / silicon dioxide rubber nanocomposite material. The composite material has unique advantages in terms of mechanical properties, wear resistance and ageing resistance.

Description

technical field [0001] The invention relates to a method for preparing a natural astaxanthin / silica rubber nanocomposite material, which belongs to the field of polymer material modification. technical background [0002] As a reinforcing agent to enhance the performance of rubber matrix, silica is second only to carbon black in the field of rubber processing. Compared with carbon black, silica filled has the advantages of less hysteresis loss and rolling resistance. With the introduction of Michelin's "Green Tire Technology" in 1992, particle size is an important factor affecting material properties because smaller particles have a larger specific surface area. However, the specific surface area and activity of silica are very high, and it is easy to agglomerate in the rubber matrix, which is difficult to disperse, and it is easy to agglomerate twice during the mixing process, thus affecting the application performance of the product. Therefore, improving the compatibilit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08K13/02C08K5/07C08K3/36
Inventor 王辉陈宁
Owner 沭阳乐福橡塑工业有限公司