US 12,337,582 B2
High-velocity impact-resistant wave-transparent composite with bio-inspired nacre-like interlaminar toughening structure, and preparation method thereof
Yaqing Liu, Taiyuan (CN); Qihui Chen, Taiyuan (CN); Yu Zhang, Taiyuan (CN); and Guizhe Zhao, Taiyuan (CN)
Assigned to NORTH UNIVERSITY OF CHINA, Taiyuan (CN)
Filed by NORTH UNIVERSITY OF CHINA, Taiyuan (CN)
Filed on Nov. 13, 2024, as Appl. No. 18/945,915.
Application 18/945,915 is a continuation of application No. PCT/CN2024/074083, filed on Jan. 25, 2024.
Claims priority of application No. 202410067663.9 (CN), filed on Jan. 17, 2024.
Prior Publication US 2025/0065599 A1, Feb. 27, 2025
Int. Cl. B32B 5/24 (2006.01); B32B 5/02 (2006.01); B32B 5/18 (2006.01); B32B 5/32 (2006.01)
CPC B32B 5/245 (2013.01) [B32B 5/02 (2013.01); B32B 5/18 (2013.01); B32B 5/32 (2013.01); B32B 2250/03 (2013.01); B32B 2260/023 (2013.01); B32B 2260/046 (2013.01); B32B 2262/0253 (2013.01); B32B 2262/101 (2013.01); B32B 2266/0235 (2013.01); B32B 2266/08 (2013.01); B32B 2266/126 (2016.11); B32B 2307/204 (2013.01); B32B 2307/542 (2013.01); B32B 2307/546 (2013.01); B32B 2307/558 (2013.01); B32B 2307/7376 (2023.05)] 9 Claims
OG exemplary drawing
 
1. A wave transparent composite with an impact-resistant performance, comprising:
an upper composite layer;
a lower composite layer; and
a bio-inspired nacreous toughening structure arranged between the upper composite layer and the lower composite layer; and
wherein the upper composite layer and the lower composite layer are each independently made of a fiber-reinforced resin composite, a foam material, or a honeycomb material;
the bio-inspired nacreous toughening structure is prepared through steps of:
exfoliating an original α-ZrP sheet material with an amino-containing small molecule substance as an exfoliating agent by an ultrasound-assisted exfoliation process under a preset ultrasound power for a preset period to arrive at the α-ZrP nanosheet with a desired two-dimensional size and a thickness;
preparing an aqueous dispersion system of the α-ZrP nanosheet and a cellulose;
performing a directional freezing on the aqueous dispersion system to construct an α-ZrP aerogel with an oriented continuous network structure, wherein the α-ZrP aerogel is oriented perpendicular to a horizontal direction and has a uniform wall thickness and a uniform pore distribution; and the cellulose is constructed as a framework for structurally reinforcing the α-ZrP aerogel, and the cellulose is selected from the group consisting of carboxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, bacterial cellulose and a combination thereof; and
infusing a thermosetting resin system into the α-ZrP aerogel to form a bio-inspired nacreous toughening structure with a soft-hard alternating nacreous structure, wherein the resin is configured as a soft layer, and a wall of the α-ZrP aerogel is configured as a hard layer; and the thermosetting resin system is configured to bond the α-ZrP aerogel into a whole to maintain the α-ZrP aerogel in a certain shape, transmit an interlaminar stress, and protect the α-ZrP aerogel from external erosion and damage; and the hard layer is filled between the upper composite layer and the lower composite layer in an aerogel form to improve interlaminar mechanical performance and wave-transparent performance.