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Oil-resistant conductive fluororubber, and preparation method and application thereof

A fluororubber and oil-resistant technology, which is applied in the field of oil-resistant and conductive fluororubber, can solve problems such as difficult preparation of shape memory materials, achieve the effects of improving shape fixation rate and shape recovery, improving mixing effect, and improving practicability

Active Publication Date: 2022-02-25
AEROSPACE RES INST OF MATERIAL & PROCESSING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Fluorine rubber has obvious chemical inertness and excellent resilience, which makes it difficult to prepare shape memory materials by traditional chemical modification methods

Method used

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  • Oil-resistant conductive fluororubber, and preparation method and application thereof
  • Oil-resistant conductive fluororubber, and preparation method and application thereof
  • Oil-resistant conductive fluororubber, and preparation method and application thereof

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Experimental program
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preparation example Construction

[0039] The preparation method of a kind of oil-resistant conductive fluororubber of the present invention is as follows:

[0040] (1) Prepare fluororubber compound rubber according to the following formula: 100 parts of fluororubber, 1 to 3 parts of fluororubber vulcanizing agent, 0.1 to 0.8 parts of fluororubber accelerator, 1 to 5 parts of fluororubber acid absorber;

[0041](2) Prepare the nitrile rubber compound according to the following formula: 100 parts of nitrile rubber, 0.5-3 parts of sulfur, 0.5-3 parts of vulcanization accelerator, 30-40 parts of coordination salt, and 1-5 parts of anti-aging agent.

[0042] (3) The nitrile rubber compound is frozen and ground into powder, sieved, mixed evenly with 1 to 4 parts of carbon nanotubes, and then mixed and vulcanized with the fluorine rubber compound; the quality of the fluorine rubber compound: The mass of nitrile rubber-carbon nanotube mixed powder is 9:1~6:4.

[0043] In an optional embodiment, the fluorine rubber in...

Embodiment 1

[0061] In this embodiment, the preparation method of oil-resistant conductive fluororubber comprises the following steps:

[0062] (1) Prepare the nitrile rubber compound according to the following formula:

[0063] Nitrile rubber (Zhenjiang Nandi 1052) 100g;

[0064] Sulfur 1.5g;

[0065] Vulcanization accelerator DM 0.5g;

[0066] Zinc chloride 30g;

[0067] Anti-aging agent MB 1g;

[0068] Anti-aging agent RD 2g.

[0069] The specific steps are as follows: zinc chloride and acetone are prepared into an organic solution with a concentration of 51 wt%, and are uniformly mixed by ultrasonic;

[0070] Plasticize nitrile rubber at room temperature, then raise the temperature to 90°C, add zinc chloride solution dropwise on the rubber, knead on an open mill, cool to room temperature after volatilizing the acetone, and weigh other Raw materials are mixed on the open mill;

[0071] (2) the acrylonitrile-butadiene rubber compound in the step (1) is used with a frozen mill to g...

Embodiment 2

[0083] The preparation method of the oil-resistant conductive fluororubber of the present embodiment comprises the following steps:

[0084] (1) Prepare the nitrile rubber compound according to the following formula:

[0085] Hydrogenated nitrile rubber (Zion 2210) 100g;

[0086] Sulfur 1.5g;

[0087] Vulcanization accelerator D 0.5g;

[0088] Ferric chloride 40g;

[0089] Anti-aging agent MB 3g;

[0090] Antiaging agent RD 1g.

[0091] The specific steps are: preparing ferric chloride and acetone into an organic solution with a concentration of 60 wt%, and mixing them uniformly through ultrasonic;

[0092] Plasticize the hydrogenated nitrile rubber at room temperature, then raise the temperature to 95°C, add the ferric chloride solution onto the rubber, and knead on the open mill. After volatilizing the acetone, cool to room temperature, and weigh Other raw materials are mixed on the open mill;

[0093] (2) The hydrogenated nitrile butadiene rubber compound in step (1)...

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Abstract

The invention discloses an oil-resistant conductive fluororubber, and a preparation method and application thereof. The preparation method comprises the following steps: firstly, preparing fluororubber mixed rubber and nitrile rubber mixed rubber, freezing and grinding the nitrile rubber mixed rubber into powder, sieving, mixing with carbon nanotubes to obtain mixed powder, mixing the mixed powder with the fluororubber mixed rubber, and vulcanizing the obtained rubber compound to obtain the oil-resistant conductive fluororubber which can be used as a shape memory material. The oil-resistant conductive fluororubber can perform double shape memory circulation or triple shape memory circulation along with temperature change, and meanwhile, due to the addition of the carbon nanotubes, fixation and recovery of the material in the shape memory circulation can be realized through temperature change caused by voltage. The preparation method is simple and rapid; meanwhile, the obtained fluororubber has good processability and is suitable for being used as a high-performance functional rubber material.

Description

technical field [0001] The invention belongs to the field of shape memory rubber processing, and in particular relates to an oil-resistant conductive fluororubber, a preparation method and an application. Background technique [0002] As an important smart material, shape memory polymer material can fix and restore its shape under the action of light, electricity, magnetism and heat, so it can be used as a storage and release material of elastic energy, in medical equipment, biosensors, actuators, etc. , Aerospace vehicle deployment devices and other aspects have shown great application prospects and have been extensively studied. Heat-triggered shape memory polymer material is a commonly used shape memory material, and its mechanism mainly relies on reversible glass transition and crystallization. However, shape-memory polymer materials will have obvious chain scission or swelling in the face of acid-base, water, oil and other media, resulting in a significant decline in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/16C08L9/02C08L71/03C08L15/00C08K3/06C08K3/04C08K5/47C08K3/16C08K5/378C08K5/3437C08K5/136C08K5/50C08K3/22C08K5/31C08K5/13
CPCC08L27/16C08L71/03C08L2201/12C08L2201/04C08K2201/011C08K2201/001C08K2003/168C08K2003/2206C08K2003/222C08L9/02C08K3/06C08K3/041C08K5/47C08K3/16C08K5/378C08K5/3437C08K5/136C08K5/50C08K3/22C08L15/005C08K5/31C08K5/13
Inventor 张继华王昊焦子洋杨元田乾刘小艳皂伟涛吴福迪赵云峰
Owner AEROSPACE RES INST OF MATERIAL & PROCESSING TECH
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