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White carbon black with dyeing groups on surface and preparation method of white carbon black

A technology of white carbon black and radicals, which is applied in the field of colorant modified white carbon black, can solve the problems of rubber product performance failure, etc., and achieve the effect of low cost, simple process and excellent performance

Inactive Publication Date: 2017-04-19
QINGDAO UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At the same time, general-purpose rubber additives: anti-aging agents, dyeing agents (for the production of colored tires), flame retardants, plasticizers, etc. are mostly used in the form of small molecules, which are easily extracted from rubber products during the use of rubber, thereby making the rubber Product performance failure

Method used

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  • White carbon black with dyeing groups on surface and preparation method of white carbon black
  • White carbon black with dyeing groups on surface and preparation method of white carbon black
  • White carbon black with dyeing groups on surface and preparation method of white carbon black

Examples

Experimental program
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Effect test

Embodiment 1

[0035]1) 5.0 grams of industrial grade granular white carbon black (the density of white carbon black is 175g / L, and the specific surface area is 160-200m 2 / g) is ultrasonically dispersed in a mixed solution of 100ml water and 100ml ethanol to form a suspension. After stirring for 0.5h, add 2ml ammonia water as a catalyst, and add silane coupling agent 3-aminopropyltriethoxysilane (KH-550 ) 10ml, reacted for 12 hours, filtered and dried to obtain modified white carbon black with amino modification on the surface.

[0036] 2) Adding 5g of modified silica containing amino groups on the surface to the specific experimental process is to mix the modified silica with 2g of dyeing agent (3,4,9,10-perylenetetracarboxylic dianhydride) in a flask, Add 50ml of toluene and heat in an oil bath at 100°C. After stirring and reacting for 5 hours, the product was washed, centrifuged and dried to obtain dyed functional white carbon black.

Embodiment 2

[0038] 1) Stir and mix 5ml of ammonia water and 100ml of alcohol in the flask for about half an hour to create an alkaline environment. Use a syringe to drop 20ml of TEOS reagent into the flask. TEOS decomposes in an alkaline environment to obtain nano-scale silica required for the reaction. The reaction temperature is 40°C. About three hours after the Stober method reaction vessel started to react, 5ml TEOS and 2ml silane coupling agent KH-550 were added dropwise into the vessel using a syringe, and the reaction was continued for about 24h after the addition was completed. Use a high-speed centrifuge for centrifugal washing. The specific operation is to use a centrifugal tube to divide the sample, and then centrifuge in a high-speed centrifuge. After centrifugation, pour out the supernatant, take out the solids for washing, and centrifuge again after washing. A total of three washes were performed using distilled water (to remove NH3), distilled water and alcohol (to remove H ...

Embodiment 3

[0041] 1) 5.0 grams of industrial grade granular white carbon black (the density of white carbon black is 175g / L, and the specific surface area is 160-200m 2 / g) is ultrasonically dispersed in a mixed solution of 100ml water and 100ml acetone to form a suspension, after stirring for 0.5h, add 2ml ammonia water as a catalyst, and add silane coupling agent 3-aminopropyltriethoxysilane (KH-550 ) 10ml, reacted for 12 hours, filtered and dried to obtain modified white carbon black with amino modification on the surface.

[0042] 2) Adding 5g of modified silica containing amino groups on the surface to the specific experimental process is to mix the modified silica with 2g of dyeing agent (3,4,9,10-perylenetetracarboxylic dianhydride) in a flask, Add 50ml of toluene and heat in an oil bath at 100°C. After stirring and reacting for 5 hours, the product was washed, centrifuged and dried to obtain dyed functional white carbon black.

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Abstract

The invention relates to white carbon black with dyeing groups on the surface and a preparation method of the white carbon black. In a formula I, R represents reactive groups of a silane coupling agent, and Dye represents the dyeing groups. The dye modified white carbon black prepared with the method has wide raw material sources and is lower in cost, part of monomers is the industrialized raw material, and a reaction method is mature. Compared with non-modified white carbon black, the dye modified white carbon black prepared with the method has high hydrophobic and lipophilic properties, and can improve combining property with reinforced rubber and improve reinforcement effect; meanwhile, the white carbon black has different colors and can endow the reinforced rubber with different colors, and besides, transference resistance of the dye is better; an obtained copolymer has broad application prospect in the aspect of improvement of flame retardancy and bonding flame retardancy of polyolefin.

Description

technical field [0001] The invention relates to a dye-modified white carbon black, in particular to a white carbon black with a dyeing group on the surface and a preparation method thereof. Background technique [0002] Automobile tires are composed of rubber matrix, reinforcing system and various additives. The properties of the reinforcing system and various additives and their compounding with rubber determine the performance of the tire. Automobile tires made of silica reinforced materials have the advantages of low hysteresis loss and low rolling resistance, so it has become an important raw material for the manufacture of "green tires". However, there are still problems in "green tires" that the modification of silica is expensive and the small molecule additives are easy to be extracted from the rubber matrix. During the manufacturing process of white carbon black, spherical particles can be chemically connected to form aggregates, and the aggregates are easy to form...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/28C09C3/12C09C3/08C09B5/02C08K13/06C08K9/06C08K9/04C08K3/36C08L7/00
CPCC08K3/36C08K9/04C08K9/06C08K13/06C09B5/024C09C1/28C09C3/006C09C3/08C09C3/10C08K2201/006C08L2201/02C08L7/00
Inventor 王洪振赵华强卢娜辛振祥侯占峰
Owner QINGDAO UNIV OF SCI & TECH
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