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Nano composite material, preparation method thereof, rubber composition, vulcanized rubber and applications thereof

A technology of nano-composite materials and rubber compositions, applied in other chemical processes, chemical instruments and methods, dyed low-molecular organic compound treatment, etc., can solve the problems of inability to prepare high-performance rubber materials, and achieve favorable mechanical properties and The effect of processing, excellent mechanical properties, and simple preparation process

Active Publication Date: 2017-04-05
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Even so, it is still impossible to prepare high-performance rubber materials by filling calcium carbonate reinforcement alone

Method used

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  • Nano composite material, preparation method thereof, rubber composition, vulcanized rubber and applications thereof

Examples

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preparation example Construction

[0026] In a second aspect, the present invention provides a method for preparing a nanocomposite material, wherein the method includes: adding the above-mentioned modifying agent to the aqueous dispersion of nano calcium carbonate to modify the nano calcium carbonate sex.

[0027] According to the present invention, the consumption of described nano-calcium carbonate and modifier is not particularly limited, as long as the nano-calcium carbonate surface performance can be changed from hydrophilic to lipophilic, generally, with respect to the nano-calcium carbonate of 100 parts by weight , the amount of the modifier is 1-10 parts by weight, preferably 5-10 parts by weight.

[0028] According to the present invention, the preparation method of the aqueous dispersion of nano-calcium carbonate is not particularly limited, as long as it can form a uniform aqueous dispersion, for example, nano-calcium carbonate can be added to deionized water and mixed to prepare Aqueous dispersion...

Embodiment 1

[0066] This embodiment is used to illustrate the nanocomposite material provided by the present invention and its preparation method and vulcanized rubber

[0067] (1) 200g particle diameter is that the nano-calcium carbonate of 60nm is dropped in 2L aqueous solution, after 15min with the stirring speed mechanical stirring of 3000rpm at 25 ℃, obtain the aqueous dispersion liquid of nano-calcium carbonate.

[0068] (2) add 15g modifying agent L-cystine in the water dispersion liquid of the nano-calcium carbonate that step (1) obtains, at 80 ℃ of temperature, stir 80min under the rotating speed of 3000rpm, obtain modified nano-calcium carbonate suspension .

[0069] (3) The resulting suspension was spray-dried at a rotational speed of 16000 rpm and a spray-drying temperature of 100° C. to obtain 210 g of nanocomposite C1 with an average particle size of 450 nm.

[0070] (4) Add the following rubber composition A1 to the following rubber composition A1 at a temperature of 35±5°C...

Embodiment 2

[0082] This embodiment is used to illustrate the nanocomposite material provided by the present invention and its preparation method and vulcanized rubber

[0083] (1) 200g particle diameter is that the nano-calcium carbonate of 45nm is dropped in 2L aqueous solution, at 35 ℃ with 5000 revs / min stirring velocity machinery after 5min, obtain the aqueous dispersion liquid of nano-calcium carbonate.

[0084] (2) add 20g modifier L-methionine in the suspension that step (1) obtains, at 120 ℃ of temperature, stir 60min under the rotating speed of 5000rpm, obtain modified nanometer calcium carbonate suspension;

[0085] (3) The resulting suspension was spray-dried at a speed of 19000 rpm and a spray-drying temperature of 95° C. to obtain 215 g of nanocomposite material C2 with an average particle size of 360 nm.

[0086] (4) Add the following substances to the rubber composition A2 at a temperature of 35±5°C on a double-roller rubber mixing machine and mix them uniformly, and then m...

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Abstract

The invention relates to the field of rubber reinforcing agent, and discloses a nano composite material and a preparation method thereof. The nano composite material contains nano calcium carbonate modified by a modifier that is a substance comprising a group A, a group B and a group C, wherein the group A is -S-, the group B is -COOH, and the group C is -NH2. The invention also discloses an application of the nano composite material in preparation of vulcanized rubber and the vulcanized rubber prepared with the nano composite material, and applications of the vulcanized rubber in sealing materials. The nano composite material has excellent dispersibility in a rubber substrate and can reinforce rubber by itself. The nano composite material can improve vulcanization and mechanical performances of the rubber product and has advantages on processing. The material is energy-saving and environment-friendly.

Description

technical field [0001] The present invention relates to the field of rubber reinforcing agents, in particular to a nanocomposite material, a method for preparing a nanocomposite material, the nanocomposite material and / or the nanocomposite material prepared by the method as a rubber reinforcing agent Use of rubber for reinforcement and rubber thus reinforced, rubber composition containing the nanocomposite, vulcanized rubber obtained from the rubber composition and use of the vulcanized rubber. Background technique [0002] Ethylene-propylene rubber is a non-self-reinforcing rubber, and it needs to be reinforced with carbon black and other reinforcing agents to have better comprehensive performance. Ethylene-propylene rubber itself has a strong filling ability, which means that ethylene-propylene rubber does not suffer from significant performance degradation when filled in a large amount like other elastomers, and a large amount of filling can also improve processing perfor...

Claims

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Application Information

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IPC IPC(8): C08K9/04C08K3/26C09C1/02C09C3/08C08L23/16C08L91/06C08K13/06C08J3/24C09K3/10
Inventor 李静解希铭王丽静王丽丽
Owner CHINA PETROLEUM & CHEM CORP
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