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A kind of water stimulus response rubber composite material and preparation method thereof

A technology of stimuli-responsive and composite materials, applied in the field of water stimuli-responsive rubber composite materials and its preparation, can solve the problems of human body tolerance to temperature limitations, achieve good shape memory fixation and shape recovery performance, tight interlayer bonding, and simple operation Effect

Active Publication Date: 2022-05-13
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a water-stimuli-responsive rubber composite material and its preparation method, aiming to solve the human body’s temperature tolerance limit when shape-memory materials are used in biomedical and other fields, and to develop water-stimuli-responsive composite materials

Method used

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  • A kind of water stimulus response rubber composite material and preparation method thereof

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preparation example Construction

[0026] A kind of preparation method of water stimulus response rubber composite material of the present invention comprises the following steps:

[0027] Mixing process, in the double-roller mill, adjust the roll temperature to 60-80°C, add nitrile rubber and polyethylene oxide, and cover the rolls; after it is completely covered with rolls, add vulcanizing agent and processing aids , left and right thin pass 3-5 times; adjust the roller distance to 1-3mm, and then unload; park for 18-24h, re-smelting, thin pass 3-5 times; adjust the roller distance to 1-3mm, and unload;

[0028] Vulcanization process, the vulcanization temperature is 150-160°C, and the vulcanization time is 5-10min to obtain rubber composite materials.

[0029] Specifically, the vulcanization process is carried out in a high-temperature flat vulcanizer.

[0030] Further, in the mixing process, the wrapping time is 4-10 minutes.

[0031] Preferably, the re-milling temperature in the mixing process is 60-80°C...

Embodiment 1

[0033] A kind of preparation method of water stimulus response rubber composite material of the present invention comprises the following steps:

[0034]1) Weigh the following raw materials in parts by weight in turn: 30 parts of nitrile rubber, 70 parts of polyethylene oxide, 0.8 part of vulcanizing agent DCP, 1 part of processing aid, including 0.3 part of zinc oxide, 0.2 part of antioxidant MB part and 0.5 part of stearic acid;

[0035] 2) Mixing process, in the double-roll mill, adjust the roll temperature to 60°C, add nitrile rubber and polyethylene oxide, and cover the rolls; after it is completely covered with rolls, add vulcanizing agent and processing aids , left and right thin passes 3 times; adjust the roller distance to 1mm, and then unload; park for 18h, re-smelt, thin pass 5 times; adjust the roller distance to 1mm, and unload;

[0036] 3) Vulcanization process, in a high-temperature plate vulcanizer, with a vulcanization temperature of 150°C and a vulcanization...

Embodiment 2

[0038] A kind of preparation method of water stimulus response rubber composite material of the present invention comprises the following steps:

[0039] 1) Weigh the following raw materials in parts by weight in turn: 60 parts of nitrile rubber, 40 parts of polyethylene oxide, and 1.6 parts of vulcanizing agent DCP;

[0040] 2) Mixing process, in the double-roller mill, adjust the roller temperature to 80°C, add nitrile rubber and polyethylene oxide, and cover the rolls; 5 times; adjust the roller distance to 3mm, and then unload; park for 24 hours, re-smelt, thin pass 3 times; adjust the roller distance to 3mm, and unload;

[0041] 3) Vulcanization process, in a high-temperature plate vulcanizer, the vulcanization temperature is 160° C., and the vulcanization time is 5 minutes to obtain rubber composite materials.

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Abstract

The invention discloses a water-stimulus-responsive rubber composite material and a preparation method thereof. The present invention comprises the following raw materials in parts by weight: 30-80 parts of nitrile rubber, 20-70 parts of polyethylene oxide, 0.8-1.6 parts of vulcanizing agent, 0-5 parts of processing aids; the present invention also provides the above-mentioned rubber In the preparation method of the composite material, the above raw materials are mixed and vulcanized to obtain the rubber composite material. The present invention adopts traditional rubber polymer materials and functional polymer materials to combine, and through mixing and vulcanization, a kind of rubber composite material with water stimulus response is prepared, which is a new type of stimulus response rubber composite material, which improves The utilization value of the shape memory polymer material is realized. The rubber composite material is uniform in texture, has a cross-linked network structure, and does not have problems such as delamination. The conversion temperature range is always between room temperature and body temperature, and has better shape memory fixation and shape. Recovery performance, widely used in biomedical and other fields.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, in particular to a water-stimuli-responsive rubber composite material and a preparation method thereof. Background technique [0002] Shape-memory polymer material is a kind of product with an initial shape that changes its initial condition and fixes it under certain conditions, and can restore its original shape through the stimulation of external conditions (such as heat, electricity, light, chemical induction, etc.). Polymer Materials. Shape memory polymer materials have a large amount of deformation, easy to assign, light weight, and structural diversity; and have excellent insulation properties, heat preservation properties, and easy coloring properties, making them widely used in biomedical, smart textiles, and high-performance sensors. focus on. Shape memory polymer materials have great application prospects in the field of clinical medicine and implanted medical equipment. W...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L71/02C08L9/02C08K13/02C08K5/14C08K3/06B29B7/52B29B7/72B29C35/02
CPCC08L71/02C08L9/02B29B7/52B29B7/72B29C35/02C08L2201/12C08L2312/00C08L2203/02C08K13/02C08K5/14C08K3/06
Inventor 夏琳邱桂学刘广永
Owner QINGDAO UNIV OF SCI & TECH
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