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Inflation object surface repairing agent and preparation method thereof and inflation object surface repairing method

A surface repairing and repairing method technology, applied in the field of inflatable surface repairing and inflatable surface repairing agent, can solve the problems of inability to detect and repair surface damage in time, affecting the safe use and operation of inflatable objects, and low repairing efficiency of repairing agent, etc. Achieve long-lasting repair effect, excellent elasticity and wide application range

Pending Publication Date: 2021-03-09
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At present, inflatables have been widely used in daily life and military fields, but inflatable materials will inevitably suffer friction and folding damage during processing, storage, use, and transfer. These damages, especially tiny cracks that cannot be detected intuitively, will become a channel for gas leakage, thereby affecting the safe use and operation of the inflatable, but the existing technology cannot detect and repair the surface damage in time, and because the composition of the surface material of each inflatable is different, the types of repair agents required are also different. The restoration efficiency of the restoration agent is not high, the operation is inconvenient, and the restoration effect is not ideal

Method used

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  • Inflation object surface repairing agent and preparation method thereof and inflation object surface repairing method
  • Inflation object surface repairing agent and preparation method thereof and inflation object surface repairing method
  • Inflation object surface repairing agent and preparation method thereof and inflation object surface repairing method

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preparation example Construction

[0038] The invention provides a preparation method of an inflator surface repair agent, comprising:

[0039] Drying the polyurethane to obtain dried polyurethane particles;

[0040] Stirring and mixing the dried polyurethane particles with a low-boiling point solvent to obtain the finished product.

[0041] The preparation method of the surface repairing agent for an inflator provided by the invention firstly dries polyurethane to obtain dried polyurethane particles.

[0042] The drying temperature in the present invention is preferably 90-110° C.; more preferably 100° C.; the drying time is preferably 1-10 hours; more preferably 2-9 hours; most preferably 3-8 hours.

[0043] The present invention does not limit the drying device, as long as those skilled in the art are familiar with it.

[0044] Take a low boiling point solvent, place it in a stirring device, and stir at a low speed. The present invention does not limit the stirring device, preferably a stirring barrel. T...

Embodiment 1

[0062] This embodiment provides a general-purpose inflator surface repair agent with a solute mass fraction of 5%, which is made by mixing the following raw materials in parts by mass: 5 parts of polyurethane and 95 parts of ethyl acetate. The repair agent is prepared according to the following steps:

[0063] (1) Weigh 50g of polyurethane and bake at 100°C for 5 hours;

[0064] (2) Weigh 950g of ethyl acetate, pour it into a mixing bucket, and adjust the stirring speed to 100r / min;

[0065] (3) Slowly pour the polyurethane after drying in step (1) into the mixing tank while stirring, the stirring speed is adjusted to 1200r / min, and the stirring time is 50min;

[0066] Pre-select a piece of aerostat capsule material whose surface is PVF, and cut it into a size of 50cm×50cm, use thumbtacks to randomly needle three holes with a diameter of 0.6mm in the capsule material, such as figure 1 as shown, figure 1 It is the capsule material with a needle-punched hole scar (0.6 mm in di...

Embodiment 2

[0068] This example provides a general-purpose inflator surface repair agent with a solute mass fraction of 7%, which is made by mixing the following raw materials: 7 parts of polyurethane and 93 parts of ether. The repair agent is prepared according to the following steps:

[0069] (1) Weigh 70g of polyurethane and dry it at 100°C for 7 hours;

[0070] (2) Take by weighing 930g ethyl acetate, pour in the mixing bucket, and the stirring speed is adjusted to 100r / min;

[0071] (3) Slowly pour the polyurethane after drying in step (1) into the mixing tank while stirring, the stirring speed is adjusted to 1200r / min, and the stirring time is 50min;

[0072] Pre-select a piece of aerostat capsule material with a PVF surface, cut it into a size of 50cm×50cm, and use thumbtacks to randomly needle three holes with a diameter of 0.6mm in the capsule material. Then apply the repair agent to the damaged surface and place it at 25°C for 20 minutes to complete the repair.

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Abstract

The invention provides an inflation object surface repairing agent, which comprises the following components in parts by mass: 3-15 parts of polyurethane and 85-97 parts of a low-boiling-point solvent. The inflation object surface repairing agent comprises polyurethane and a low-boiling-point solvent, can be applied to the surface of an inflation object of which the surface is made of PVF, PVDF, TPU, PVC and other materials, can realize repair at normal temperature, and has the characteristics of high repair speed, high repair efficiency, lasting repair effect, high bonding strength, wide application range, excellent elasticity, good rubbing resistance, low cost and the like.

Description

technical field [0001] The invention relates to the technical field of materials, in particular to an inflator surface repair agent, a preparation method thereof and an inflator surface repair method. Background technique [0002] The inflatable refers to the structure that forms a closed space after the air, helium and other gases are injected into the film products made of polymer materials or fabric / film laminated composite materials, mainly including stratospheric airships, tethered balloons, inflatable false targets, Inflatable film, etc., has the advantages of light weight, high strength, fatigue resistance, twist resistance, good bearing effect, easy retractable, long service life, etc., and has been widely used. [0003] Aerostats such as airships and tethered balloons rely on the buoyancy generated by gases lighter than air (such as helium) to stay in the air, carry various payloads, and use their lift-off heights to cover the monitoring visible area. It has a wide...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04B29C73/02
CPCB29C73/02C09D175/04
Inventor 刘向东盛德鲲杨宇明张航周妍熊征蓉孙磊
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI