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Title:
ANTI-EXPLOSION AND ANTI-IMPACT GRADIENT COMPOSITE DAMPING MATERIAL HAVING NEGATIVE POISSON'S RATIO, AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/077669
Kind Code:
A1
Abstract:
The present invention provides an anti-explosion and anti-impact gradient composite damping material having a remarkable negative Poisson's ratio effect, and a preparation method therefor. The anti-explosion and anti-impact gradient composite damping material having a negative Poisson's ratio is composed of at least one inner surface viscoelastic layer-inner rigid layer-intermediate elastic layer-outer surface high strength layer layered unit structure. An interface connecting layer is provided between every two adjacent layers of the composite damping material. The intermediate elastic layer comprises a matrix material and a multi-stage heterogeneous fiber prefabricated body provided in the matrix material and having a negative Poisson's ratio effect. The multi-stage heterogeneous fiber prefabricated body is formed by means of warp and weft plain weave of a plurality of multi-stage heterogeneous fibers. The anti-explosion and anti-impact gradient composite damping material having a negative Poisson's ratio of the present invention not only greatly improves the impact damage resistance but also can absorb high impact energy to avoid damage to personnel by rigid impact force in a collision impact process, thereby protecting personal safety to the maximum extent and achieving important social significance.

Inventors:
MA YANXUAN (CN)
LI MENGYAO (CN)
XU YAQIAN (CN)
ZHU PENGFEI (CN)
DUAN YUYING (CN)
ZHAO JIAHUA (CN)
SONG XIAOHUI (CN)
MA QIAOLING (CN)
Application Number:
PCT/CN2020/080327
Publication Date:
April 29, 2021
Filing Date:
March 20, 2020
Export Citation:
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Assignee:
UNIV QINGDAO TECHNOLOGY (CN)
International Classes:
B32B13/14
Foreign References:
CN103660456A2014-03-26
CN107059404A2017-08-18
JPH093758A1997-01-07
CA2413184A12003-05-29
KR101006062B12011-01-07
Attorney, Agent or Firm:
QINGDAO HECHUANG INTELLECTUAL PROPERTY AGENCY FIRM (GENERAL PARTNERSHIP) (CN)
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