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Preparing method for gradient distribution porous heat-insulation high-strength film functional coring soft bag used for lunar exploration soil sampling

A core-taking soft bag, gradient distribution technology, applied in bags, sacks, non-woven fabrics, etc., can solve the problems of soft bag accidental breakage, fiber performance degradation, etc., achieve good thermal protection, meet functional requirements, and ensure consistency Effect

Active Publication Date: 2016-06-08
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the existing core-taking soft bag is easily affected by the high temperature of the drilling mechanism and cause the fiber performance to decline, which leads to the accidental breakage of the soft bag in the process of lunar exploration and soil extraction, and to provide a gradient distribution Preparation method of porous heat-insulating high-strength film functionalized soft bag for core-taking for lunar exploration

Method used

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  • Preparing method for gradient distribution porous heat-insulation high-strength film functional coring soft bag used for lunar exploration soil sampling
  • Preparing method for gradient distribution porous heat-insulation high-strength film functional coring soft bag used for lunar exploration soil sampling
  • Preparing method for gradient distribution porous heat-insulation high-strength film functional coring soft bag used for lunar exploration soil sampling

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specific Embodiment approach 1

[0035] Specific implementation mode 1: This implementation mode is a kind of porous heat-insulating high-strength film with gradient distribution. The preparation method of the core soft bag for lunar exploration and soil collection is completed according to the following steps:

[0036] 1. Warp 80 to 300 fiber warp yarns, then weave tubular flexible fabrics with plain weave on the loom, and then neatly cut and edge them to obtain cores with a diameter of 16.5mm to 27mm and a length of 200mm to 2500mm soft bag;

[0037] The fiber warp yarn described in step 1 is one of the Kevlar fibers of 50 denier to 1600 denier or a mixture of several of them;

[0038] The loom described in step 1 is a shuttle loom, a shuttleless loom or a circular loom;

[0039] 2. Prepare different concentrations of Kevlar nanofiber solutions:

[0040] ①. Prepare a dark red Kevlar nanofiber solution with a mass fraction of 0.3%;

[0041] Use nitrogen to purge the dry three-necked flask for 20min to 30m...

specific Embodiment approach 2

[0065] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is: in step 1, 168 fiber warp yarns are warped, and then the tubular flexible fabric is weaved by plain weave on a loom, and then neatly cut and edged, to obtain A soft core bag with a diameter of 20.5mm and a length of 200mm. Other steps are the same as in the first embodiment.

specific Embodiment approach 3

[0066]Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that: the warp yarn of the fiber described in step 1 is Kevlar-29 aramid fiber of 130 denier. Other steps are the same as those in Embodiment 1 or 2.

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Abstract

The invention relates to a preparing method for a coring soft bag used for lunar exploration soil sampling, in particular to a preparing method for a gradient distribution porous heat-insulation high-strength film functional coring soft bag used for lunar exploration soil sampling. The purpose is to solve the problem that in the lunar exploration soil sampling process, an existing coring soft bag is prone to being affected by high temperature of a drilling mechanism to cause accident fracture. The preparing method includes the steps that 1, a coring soft bag is prepared; 2, Kevlar nanofiber solutions of different concentrations are prepared; 3, a vacuum filtration device is constructed; 4, the gradient distribution porous heat-insulation high-strength film functional coring soft bag used for lunar exploration soil sampling is obtained through compounding. The inner side temperature inside the prepared gradient distribution porous heat-insulation high-strength film functional coring soft bag used for lunar exploration soil sampling is reduced by 27-30% compared with that of an untreated coring soft bag, and the breaking strength is improved by 17.2-25%. The gradient distribution porous heat-insulation high-strength film functional coring soft bag used for lunar exploration soil sampling can be obtained.

Description

technical field [0001] The invention relates to a preparation method of a core-taking soft bag for lunar exploration and soil collection. Background technique [0002] China's lunar exploration project has fully entered the third phase of the three-step development plan of "circling, falling, and returning". It is planned to implement the Chang'e-5 mission around 2017 to realize the automatic sampling and return of the lunar soil by no one, which will achieve an epoch-making significance. The lunar drill-coring-return experiment. During this experiment, the drilling and sampling coring soft bag needs to effectively complete the acquisition of lunar soil samples and bedding maintenance. The lunar soil samples should be wrapped in the coring flexible bag and the end of the flexible bag should be reliably sealed to ensure High coring rate, no sample leakage, no sample loss, high degree of bedding retention. The normal work of the coring soft bag is the core of the entire miss...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D03D3/02B65D30/04D01D5/00D04H1/42D04H1/70
CPCB65B3/00D01D5/00D03D3/02D04H1/42D04H1/70
Inventor 黄玉东王芳吴亚东黎俊刘丽
Owner HARBIN INST OF TECH
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