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Impact-resistant flexible protective material as well as preparation method and application thereof

A flexible protection and impact-resistant technology, applied in offensive equipment, weapon accessories, fuzes, etc., can solve the problems of poor impact resistance of fuzes, and achieve the effects of excellent dynamic mechanical properties, obvious vibration effects, and large stiffness and damping.

Pending Publication Date: 2021-08-24
INST OF MECHANICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies of existing anti-shock and vibration-suppressing materials, the present invention provides a preparation method of a new type of anti-shock and vibration-suppressing material with shear thickening effect and strengthening effect and its application in fuzes, which can effectively reduce the vibration of fuzes under high-speed impacts. Obvious suppression effect can solve the problem of poor impact resistance of the fuze

Method used

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  • Impact-resistant flexible protective material as well as preparation method and application thereof
  • Impact-resistant flexible protective material as well as preparation method and application thereof
  • Impact-resistant flexible protective material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] (1) Preparation of RIRM materials

[0054] ①According to the RIRM material process flow and the goal of a silicon-boron ratio of 3:1, predetermine the formula and ratio of raw materials; ②Prepare 50g of petroleum ether, 36.6g of diphenylsilanediol, and 13.35g of methyltriethoxy Silane and 5.55g hydroxy silicone oil are placed in the round bottom flask successively;

[0055] ③Add 50mL of distilled water into the round bottom flask, and stir well with a glass rod to obtain the A mixture; ④Heat the A mixture for 4 hours at 80°C oil bath temperature to obtain the B mixture;

[0056] ⑤ Weigh 6.2g of boric acid and add it to the mixed solution of B, and stir with a glass rod to obtain the mixed solution of C after mixing evenly;

[0057] ⑥Heating and reacting the mixed liquid C for 7 hours at an oil bath temperature of 85°C to obtain the mixed liquid D;

[0058] ⑦ Cool the D mixture to room temperature of 25°C, and then wash it with deionized water several times to obtain the...

Embodiment 2

[0067] The SR-RIRM-CNT composite material prepared in Example 1 was cooled to room temperature, and part of the SR-RIRM-CNT composite material was put into a mold, and pressed into a 0.63cm thick, 1.46cm diameter Cylindrical specimens for dynamic mechanical performance analysis;

[0068] The specific method is as follows:

[0069] ①Experimental preparation: Prepare the experimental samples in advance, turn on the power of the instrument and the computer software control interface;

[0070] ② Instrument calibration and sample installation: calibrate the instrument, install the sample and measure its size;

[0071] ③Start the experiment: After completing the setting of the instrument parameters and experimental test parameters, conduct a dynamic mechanical experiment on the sample;

[0072] ④ End the experiment: sort out the experiment platform and analyze the experiment results.

[0073] Storage modulus refers to the energy stored in a material due to elastic deformation und...

Embodiment 3

[0075] The SR-RIRM-CNT composite material prepared in Example 1 was filled into the fuze structure for fuze protection, and the shock resistance and vibration suppression performance test was carried out using the shock vibration test platform.

[0076] The specific method is as follows:

[0077] ① Filling the protective material of the fuze: according to the structure of the fuze, pour the protective material to the designated position in the fuze;

[0078] ② Install the acceleration sensor: install the acceleration sensor in the fuze and connect it to the oscilloscope;

[0079] ③Installing the fuze: fix the fuze measuring tool structure, and fix the fuze shell at the tail of the incident rod;

[0080] ④ Prepare the bullet launch system: fill the bullets according to the strike order and push them into the air gun barrel;

[0081] ⑤Installing the energy-absorbing device: install the energy-absorbing buckling cylinder on the energy-absorbing device, and adjust the position o...

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Abstract

The invention discloses a flexible protective material with remarkable impact resistance and vibration suppression performance and a preparation method thereof. The protective material is an SR-RIRM-CNT material, wherein SR is silicone rubber, RIRM is a repairable impact reinforcing material, CNT is a carbon nanotube, and the flexible protective material is formed by compounding the three materials. The SR-RIRM-CNT composite material disclosed by the invention not only has excellent impact resistance and vibration suppression performance, but also has good flexibility. Compared with a traditional impact-resistant vibration suppression material, the SR-RIRM-CNT composite material has more excellent dynamic mechanical properties under the impact load, and the suppression effect on the high-speed impact vibration load is more remarkable.

Description

technical field [0001] The invention relates to the technical field of anti-shock and vibration suppression, in particular to a preparation method and application of an anti-shock flexible protective material. Background technique [0002] In the fields of construction, ships, rail transit, aerospace and weapon systems, the existence of vibration will cause deformation of the equipment structure, thereby affecting the efficiency of the equipment and shortening the service life of the equipment. Especially in important fields such as aerospace and weapon systems, the resonance and fatigue damage of equipment in high-speed impact environments will cause equipment performance degradation or even failure. In order to improve the efficiency of equipment and prolong the service life of equipment, effective vibration suppression measures must be taken. The commonly used vibration suppression measures are to use anti-shock vibration suppression materials to absorb impact energy, so ...

Claims

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Application Information

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IPC IPC(8): C08L83/04C08L83/14C08K3/04C08G77/56F42C19/00F42C21/00
CPCC08L83/04C08G77/56F42C19/00F42C21/00C08L83/14C08K3/041
Inventor 唐帆郭雅悰魏延鹏
Owner INST OF MECHANICS - CHINESE ACAD OF SCI
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