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Low-hardness high-tear-resistance natural latex material suitable for space environment and preparation method thereof

A natural latex and space environment technology, applied in the field of latex materials, can solve the problems of low hardness, high strength, high and low temperature resistant natural latex rubber material formula components, etc., to achieve excellent heat resistance, wide applicability, and good comprehensive performance of the film Effect

Active Publication Date: 2021-07-23
HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there is no relevant report on the formulation components of natural latex rubber materials with low hardness, high strength, high tear resistance, and high and low temperature resistance

Method used

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  • Low-hardness high-tear-resistance natural latex material suitable for space environment and preparation method thereof
  • Low-hardness high-tear-resistance natural latex material suitable for space environment and preparation method thereof
  • Low-hardness high-tear-resistance natural latex material suitable for space environment and preparation method thereof

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Experimental program
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Effect test

preparation example Construction

[0043] A kind of preparation method of the low hardness high tear resistance natural latex material that is applicable to space environment, comprises the following steps:

[0044] (1) Add soft water, stabilizing agent, diffusing agent, thickener successively in natural rubber latex, mix; Preferably, weigh natural latex in the rubber mixing bucket, add 1 / 2 of soft water, stabilizing agent, Diffusion agent, thickener, stirring for 3 to 5 minutes;

[0045] (2) Add vulcanizing agent, accelerant, anti-aging agent, active agent to the product obtained in step (1) in sequence, and stir for 3 to 5 minutes to mix;

[0046] (3) Add soft water, mix and let stand, preferably, add the remaining 1 / 2 soft water, stir for 3-5min; stand for 4-6h;

[0047](4) Filter the product obtained in step (3), homogenize it, and leave it to stand before processing and molding; preferably, the latex after standing is filtered into the homogenizer with double-layer gauze, and the chloroform value of the t...

Embodiment 1

[0051] A method for preparing a low-hardness and high-tear-resistant natural rubber latex material suitable for space environments:

[0052] (1) Compounding: Weigh the natural rubber latex in the rubber mixing bucket, add one-half of the soft water, stabilizer, diffusing agent, and casein in sequence, and stir for 3 to 5 minutes;

[0053] (2) Then add vulcanizing agent, accelerator, anti-aging agent and active agent in turn, and stir for 3-5 minutes;

[0054] (3) Finally, add the remaining 1 / 2 soft water, stir for 3-5 minutes; let stand for 4-6 hours.

[0055] (4) filter: the latex after standing is filtered in the homogenizer with double-layer gauze, after homogenizing, the gained glue stands for subsequent use after standing 24h. The chloroform value of the mucilage after homogenizing is the first to the second end;

[0056] The ceramic or aluminum mold impregnated with coagulant can be processed into the required elastic product by immersing in the mortar. The immersion c...

Embodiment 2

[0065] A method for preparing a low-hardness and high-tear-resistant natural rubber latex material suitable for space environments:

[0066] (1) Compounding: Weigh the natural rubber latex in the rubber mixing bucket, add one-half of the soft water, stabilizer, diffusing agent, and casein in sequence, and stir for 3 to 5 minutes;

[0067] (2) Then add vulcanizing agent, accelerator, anti-aging agent and active agent in turn, and stir for 3-5 minutes;

[0068] (3) Finally, add the remaining 1 / 2 soft water, stir for 3-5 minutes; let stand for 4-6 hours.

[0069] (4) filter: the latex after standing is filtered in the homogenizer with double-layer gauze, after homogenizing, the gained glue stands for subsequent use after standing 24h. The chloroform value of the mucilage after homogenizing is the first to the second end;

[0070] The ceramic or aluminum mold impregnated with coagulant can be processed into the required elastic product by immersing in the mortar. The immersion c...

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Abstract

The invention relates to a low-hardness and high-tear-resistance natural latex material suitable for the space environment and a preparation method thereof, an anti-aging agent DNP and an anti-aging agent 264 are introduced to serve as anti-aging agents at the same time, an accelerant ZDC and an accelerant PX are introduced to serve as accelerators at the same time, by adjusting the proportion of all the components, The obtained natural latex material has the characteristics of low hardness, high strength, high tear resistance, high and low temperature resistance, aging resistance, good air tightness, environmental protection and no toxicity, and is suitable for being worn by astronauts during out-of-cabin operation.

Description

technical field [0001] The invention belongs to the field of latex materials, in particular to a natural latex material with low hardness and high tear resistance suitable for space environments and a preparation method. Background technique [0002] When working in a space environment, it is necessary to overcome harsh conditions such as high and low temperature, vacuum, cosmic dust collision, and radiation in the space environment. Therefore, latex gloves for space environment operations are required to have high strength, high tear resistance, high and low temperature resistance, radiation resistance, Toxic, soft, and comfortable to wear, to ensure that various activities can be carried out smoothly in the space environment. [0003] In recent years, natural rubber latex products have been widely used in medical and health industries due to their excellent air tightness and softness and comfort. Its application in cutting-edge technology industries such as aerospace. In...

Claims

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Application Information

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IPC IPC(8): C08L7/02C08L89/00C08K5/39C08K5/18C08K5/13C08K13/02C08K3/06
CPCC08L7/02C08L2201/08C08L89/005C08K5/39C08K5/18C08K5/13C08K13/02C08K3/06
Inventor 王凡陈兵勇刘军闵辉海
Owner HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
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