Oil sucking expansion rubber and preparation process thereof

An oil-absorbing swelling rubber technology, which is applied in the field of oil-absorbing swelling rubber materials and its preparation process, can solve problems such as low strength and poor high temperature resistance, and achieve good application prospects and significant technical and economic benefits

Inactive Publication Date: 2017-03-15
CHINA NAT PETROLEUM CORP CHUANQING DRILLING ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the strength of the existing oil-absorbing swelling rubber is generally low, and the high-temperature resistance is poor, and it can only be sealed at room temperature (below 40°C) at 1-2MPa

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] An oil-absorbing swelling rubber, comprising the following components in parts by weight: 100 parts of carrier rubber, 15-25 parts of oil-absorbing resin, 5-7 parts of activator, 2-3 parts of anti-aging agent, 2.5-3.5 parts of accelerator, vulcanized 2.5-3.5 parts of agent, 45-55 parts of white carbon black, 4-6 parts of hygroscopic agent.

[0018] The activator includes 1 part of SA-solvent-free activator and 5 parts of zinc oxide.

[0019] The accelerator includes 2.5 parts of accelerator CZ and 0.4 part of accelerator TMTD.

[0020] The vulcanizing agent comprises 0.8 parts of sulfur and 2 parts of vulcanizing agent DCP.

[0021] The oil-absorbing resin is polyvinyl chloride grafted polystyrene, 20 parts, and the chemical formula is C 2 h 3 Cl-g-C 8 h 8 , purchased from Nippon Shokubai Chemical Industry Co., Ltd.

[0022] Described hygroscopic agent is 5 parts of calcium oxide.

[0023] A method for preparing oil-absorbing swelling rubber, comprising mixing ra...

Embodiment 2

[0025] An oil-absorbing swelling rubber, comprising the following components in parts by weight: 100 parts of carrier rubber, 15 parts of oil-absorbing resin, 5 parts of activator, 2 parts of anti-aging agent, 2.5 parts of accelerator, 2.5 parts of vulcanizing agent, 45 parts of white carbon black parts, 4 parts of hygroscopic agent.

[0026] The activators include SA-solvent free activator and zinc oxide.

[0027] The accelerators include accelerator CZ and accelerator TMTD.

[0028] The vulcanizing agent includes sulfur and vulcanizing agent DCP.

[0029] The oil-absorbing resin is polyvinyl chloride grafted polystyrene, and its chemical formula is C 2 h 3 Cl-g-C 8 h 8 , purchased from Nippon Shokubai Chemical Industry Co., Ltd.

[0030] The hygroscopic agent is calcium oxide.

[0031] A method for preparing oil-absorbing swellable rubber. The raw materials including various components are mixed on a mixer at a mixing temperature of 70° C., blended for 3 hours, and th...

Embodiment 3

[0033] An oil-absorbing swelling rubber, comprising the following components in parts by weight: 100 parts of carrier rubber, 25 parts of oil-absorbing resin, 7 parts of activator, 3 parts of anti-aging agent, 3.5 parts of accelerator, 3.5 parts of vulcanizing agent, 55 parts of white carbon black parts, 6 parts of hygroscopic agent.

[0034] The activators include SA-solvent free activator and zinc oxide.

[0035] The accelerators include accelerator CZ and accelerator TMTD.

[0036] The vulcanizing agent includes sulfur and vulcanizing agent DCP.

[0037] The oil-absorbing resin is polyvinyl chloride grafted polystyrene, and its chemical formula is C 2 h 3 Cl-g-C 8 h 8 , purchased from Nippon Shokubai Chemical Industry Co., Ltd.

[0038] The hygroscopic agent is calcium oxide.

[0039] The white carbon black product model is WCB-N550.

[0040] A method for preparing oil-absorbing swellable rubber. The raw materials including various components are mixed on a mixer at...

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PUM

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Abstract

The invention discloses oil sucking expansion rubber and a preparation process thereof. The oil sucking expansion rubber is prepared from the following ingredients in parts by weight: 100 parts of carrier rubber, 15 to 25 parts of oil sucking resin, 5 to 7 parts of activating agents, 2 to 3 parts of anti-aging agents, 2.5 to 3.5 parts of accelerants, 2.5 to 3.5 parts of vulcanizing agents, 45 to 55 parts of white carbon black and 4 to 6 parts of moisture absorbents. The oil sucking expansion rubber has the advantages that the strict requirements of underground work environment can be met; good expansion performance can be ensured at high temperature (150 DEG C or higher); meanwhile, the sufficient body intensity and hardness are realized.

Description

technical field [0001] The invention relates to a rubber material, in particular to a high temperature resistant oil-absorbing swelling rubber material and a preparation process thereof. Background technique [0002] Oil-absorbing swelling rubber is a new type of material made by introducing lipophilic functional groups or lipophilic components into traditional elastic substrates. When in contact with oil, the oil molecules enter into the oil-absorbing swelling rubber through diffusion and surface adsorption, and the rubber as a whole deforms and expands. Engineering uses its expansion characteristics to produce products with specific functions, such as oil-absorbing swelling seals, etc. [0003] In the prior art, Chinese Patent Publication No. CN103848935A discloses an oil-absorbing resin and an oil-absorbing swelling rubber containing the oil-absorbing resin, and the publication date is June 11, 2014. However, the strength of existing oil-absorbing swelling rubber is gene...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): C08L23/16C08L51/00C08K13/02C08K3/06C08K3/22C08K5/09C08K3/36C08K5/14
CPCC08L23/16C08L2201/08
Inventor韩雄潘登刘飞王志敏庞东晓温杰文周继东贺源
OwnerCHINA NAT PETROLEUM CORP CHUANQING DRILLING ENG CO LTD