茎柔鱼角质颚力学性能梯度变化及其材料仿制

林静远; 刘必林; 金宵

doi:10.14135/j.cnki.1006-3080.20201228002

茎柔鱼角质颚力学性能梯度变化及其材料仿制

doi: 10.14135/j.cnki.1006-3080.20201228002

林静远^1a,
刘必林^{11, 12, 13, 14, ,},
金宵²

1.
上海海洋大学：
2.
国家远洋渔业工程技术研究中心
3.
大洋渔业资源可持续开发教育部重点实验室
4.
农业农村部大洋渔业开发重点实验室，上海201306
2.
华东理工大学材料科学与工程学院，上海 200237

基金项目: 国家重点研发计划（2019YFD0901404）；上海市高校特聘教授“东方学者”岗位计划项目（0810000243）；上海市“浦江人才”计划项目（18PJ1404100）；上海市科技创新行动计划（19DZ1207502）

详细信息

作者简介:
林静远（1994-），女，上海人，硕士，研究方向为渔业资源生物学

通讯作者:
刘必林，E-mail：bl-liu@shou.edu.cn

中图分类号: S917.4
计量
- 文章访问数: 176
- HTML全文浏览量: 113
- PDF下载量: 11
- 被引次数: 0
出版历程
- 收稿日期: 2020-12-28
- 网络出版日期: 2021-06-16
- 刊出日期: 2022-02-28

Gradient Change of Mechanical Behavior of Dosidicus Gigas Beak and Preparation of Biomimetic Materials

LIN Jingyuan^1a,
LIU Bilin^{11, 12, 13, 14
, ,},
JIN Xiao²

1.
College of Marine Sciences
2.
National Distant-water Fisheries Engineering Research Center
3.
The Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources, Ministry of Education
4.
Key Laboratory of Oceanic Fisheries Exploration, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai 201306, China
2.
School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China

摘要

摘要: 水合的茎柔鱼角质颚喙具有很大的硬度梯度，从喙部到翼部硬度相差两个数量级。这种力学性能的梯度变化与角质颚的几丁质、水和蛋白质混合物等化学成分有关，蛋白质通过多巴进行交联耦合，交联后含有组氨酸的蛋白质决定了角质颚的硬度大小。基于茎柔鱼角质颚力学性能具有梯度变化这一特性，利用壳聚糖等有机物制作了具有类似硬度梯度变化的材料，实现了仿生材料在不存在界面的情况下其力学性能呈现空间梯度变化的特点。
- 角质颚 /
- 力学性能 /
- 梯度变化 /
- 仿生材料制作
Abstract: The beak of Dosidicus gigas is a feeding organ, which is completely composed of organic matter. The rostrum of the beak has a strong hardness and mechanical strength. The mechanical strength shows a significant gradient change, gradually decreasing from the rostrum to the wing. And the degree of pigmentation is gradually becoming shallower. Inspired by the gradient of the mechanical properties of stalk squid, we used chitosan, dopa, sodium periodate and other organic materials to construct materials that showed similar mechanical properties to the keratin. The materials can eliminate the interface, and their mechanical properties are spatially variable.
- beak /
- mechanical behavior /
- gradient change /
- bionic material production

HTML全文

图 1 角质颚的结构

Figure 1. Beak structure

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图 2 角质颚梯度材料样条

Figure 2. Beak gradient material sample

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图 3 茎柔鱼角质颚不同部位的应力与应变

Figure 3. Stress and strain of different parts of Dosidicus gigas’s beak

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图 4 水合的角质颚不同部位硬度

Figure 4. Hardness of different parts of the hydrated Dosidicus gigas’s beak

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图 5 不同质量分数NaIO₄下溶液的吸光度

Figure 5. Absorbance of solution with different mass fractions of NaIO₄

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图 6 不同质量分数NaIO₄下材料拉伸强度与韧性的变化曲线

Figure 6. Variation curves of tensile strength and toughness at different mass fractions of NaIO₄ and chitosan mass ratios

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图 7 不同质量分数NaIO₄下样条的弹性模量（a）、拉伸强度（b）与断裂伸长率（c）变化趋势

Figure 7. Elasticity modulus (a), tensile strength (b) and elongation at break (c) of different mass fractions of NaIO₄

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图 8 不同质量分数NaIO₄下材料的硬度

Figure 8. Hardness at different mass fractions of NaIO₄

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图 9 茎柔鱼角质颚各部位与仿生材料力学性能对比

Figure 9. Comparison of mechanical properties of various parts of Dosidicus gigas’s beak with biomimetic materials

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表 1 茎柔鱼角质颚塑料-薄膜的拉伸性能

Table 1. Plastic-film tensile properties of Dosidicus gigas’s beak

Different parts of beak	Elasticity modulus/MPa	Tensile strength/MPa	Elongation at break/%
Rostrum	3448.02	64.38	7.27
Lateral wall	1950.34	49.60	9.98
Wing	790.74	38.05	10.84

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表 2 塑料-薄膜拉伸性能实验

Table 2. Plastic-film tensile properties test

w(NaIO₄)/%	m(NaIO₄)/mg	Elasticity modulus/MPa	Tensile strength/MPa	Elongation at break/%
1	1.25	508.85	29.59	16.41
3	3.75	838.06	35.12	10.25
5	6.25	1895.95	42.96	8.64
9	11.25	2447.34	51.38	6.88
15	18.75	1625.48	37.86	4.55
25	31.25	1152.99	26.14	1.90

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