Article(id=1200451913767579957, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1200451911695586009, articleNumber=null, orderNo=null, doi=10.19710/J.cnki.1003-8817.20240198, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=null, receivedDateStr=null, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1764139639559, onlineDateStr=2025-11-26, pubDate=1734624000000, pubDateStr=2024-12-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1764139639559, onlineIssueDateStr=2025-11-26, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1764139639559, creator=13701087609, updateTime=1764139639559, updator=13701087609, issue=Issue{id=1200451911695586009, tenantId=1146029695717560320, journalId=1189873562199433220, year='2024', volume='', issue='12', pageStart='1', pageEnd='66', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1764139639066, creator=13701087609, updateTime=1764139639066, updator=13701087609, preIssue=null, nextIssue=null, ext=null, issueFiles=null}, startPage=62, endPage=66, ext={EN=ArticleExt(id=1200451914044404023, articleId=1200451913767579957, tenantId=1146029695717560320, journalId=1189873562199433220, language=EN, title=The Application Exploration of Electronic Ink Technology in Automotive Interiors, columnId=null, journalTitle=Automobile Technology & Material, columnName=null, runingTitle=null, highlight=null, articleAbstract=

Based on the characteristics of e-ink, flexible segment-code e-ink diaphragm is used to integrate with the trim strip of a vehicle, in order to explore the feasibility of integrating e-ink and interior parts, and the vehicle specification test is conducted. Environmental tests show that the e-ink diaphragm or module can withstand the high and low temperature range of -40~70 ℃, and the e-ink diaphragm will be damaged if the temperature exceeds 70 ℃. The alternating test in the temperature range of -30~85 ℃ is easy to cause the wrinkle or stratification of the multi-layer structure of the module. Therefore, the structure and material of e-ink cannot fully meet the automobile specification test, and further research is needed to identify the application potential of e-ink in automobile interior parts.

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为探索电子墨水与内饰零件集成的可行性,依据电子墨水的特性,将柔性段码式电子墨水膜片与某车型的装饰条集成,并进行车规级试验,环境试验结果表明:电子墨水膜片或模组能够耐受-40~70 ℃的高低温区间,温度超过70 ℃会破坏电子墨水层;-30~85 ℃区间的温度交变试验易导致模组多层结构发生褶皱或分层。因此,电子墨水的结构和材料暂无法满足车规级要求,电子墨水在汽车内、外饰零件上具备应用潜能,有待进一步研究。

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滕永泉(1981—),男,工程师,学士学位,研究方向为汽车内饰件的产品开发和设计。

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滕永泉(1981—),男,工程师,学士学位,研究方向为汽车内饰件的产品开发和设计。

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滕永泉(1981—),男,工程师,学士学位,研究方向为汽车内饰件的产品开发和设计。

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序号 场景需求 场景化描述
1 车身颜色实时变化 利用电子墨水对车身外表面进行装饰覆盖,可实现实时车身颜色变化,满足消费者的各种颜色偏好;通过车身颜色变化警示周边车辆或行人
2 不同环境下内饰颜色变化 利用电子墨水实现内饰外观颜色随着日照辐射量智能变化。当日照辐射强烈时,内饰呈现白色,当日照辐射微弱时,内饰呈现黑色,当日照辐射适中时,内饰呈现黑白过渡的中间色。达到降低能耗的目的
3 内饰表面的界面显示功能 电子墨水功耗极低、不反光、大广角可视且造型自由度高,将电子墨水与显示面板、装饰面板、中控按键相结合,突出造型的整体感和统一性
), ArticleFig(id=1200451923196375650, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1200451913767579957, language=CN, label=表1, caption=

电子墨水在汽车上的场景化需求描述

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序号 场景需求 场景化描述
1 车身颜色实时变化 利用电子墨水对车身外表面进行装饰覆盖,可实现实时车身颜色变化,满足消费者的各种颜色偏好;通过车身颜色变化警示周边车辆或行人
2 不同环境下内饰颜色变化 利用电子墨水实现内饰外观颜色随着日照辐射量智能变化。当日照辐射强烈时,内饰呈现白色,当日照辐射微弱时,内饰呈现黑色,当日照辐射适中时,内饰呈现黑白过渡的中间色。达到降低能耗的目的
3 内饰表面的界面显示功能 电子墨水功耗极低、不反光、大广角可视且造型自由度高,将电子墨水与显示面板、装饰面板、中控按键相结合,突出造型的整体感和统一性
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方案 矩阵式 段码式
效果 可实现任意图案或符号的变化 实现多种颜色之间的变化
技术
成熟度
常用的硬质平面基材薄膜晶体管(Thin Film Transistor,TFT)技术较成熟,但是柔性基材的TFT技术尚未量产 柔性基材,可柔性贴合,技术较成熟
尺寸
自由度
尺寸固定 自由度高,可以根据需求自由裁切
应用案例 阅读器、电子标牌等 宝马iX Flow概念车、建筑变色装饰等
), ArticleFig(id=1200451923393507942, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1200451913767579957, language=CN, label=表2, caption=

矩阵式和段码式电子墨水的方案对比

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方案 矩阵式 段码式
效果 可实现任意图案或符号的变化 实现多种颜色之间的变化
技术
成熟度
常用的硬质平面基材薄膜晶体管(Thin Film Transistor,TFT)技术较成熟,但是柔性基材的TFT技术尚未量产 柔性基材,可柔性贴合,技术较成熟
尺寸
自由度
尺寸固定 自由度高,可以根据需求自由裁切
应用案例 阅读器、电子标牌等 宝马iX Flow概念车、建筑变色装饰等
), ArticleFig(id=1200451923485782634, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1200451913767579957, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
序号 试验
项目
试验条件 试验结果 判断
标准
试验
结果
序号 试验
项目
试验条件 试验结果 判断
标准
试验
结果
1 冷热冲击试验1 -25 ℃×0.5 h+70 ℃×0.5 h,循环100次 循环50次后,2片显示平面褶皱,边缘与骨架出现分离现象;循环100次后,无新增不良 恢复室温后,显示平面能够正常刷新切变,无破坏痕迹;电子墨水膜片与骨架贴合面无起翘、脱离、分层等现象 不合格 6 高温运行试验 50 ℃&30 %RH×168 h 无异常 恢复室温后,显示平面能够正常刷新切变,无破坏痕迹;电子墨水膜片与骨架贴合面无起翘、脱离、分层等现象 合格
2 热老化试验1 60 ℃&23 %RH×240 h 96 h后,2片显示平面边缘与骨架出现分离现象;168 h后,无新增不良;240 h后,无新增不良 不合格 7 高温高湿运行试验 40 ℃&90 %RH×168 h 无异常 合格
3 高温高湿存储试验 50 ℃&80 %RH×168 h 96 h后,无异常;168 h后,无异常 合格 8 低温运行试验 10 ℃×168 h 无异常 合格
4 低温
储存试验1
-25 ℃×240 h 96 h后,无异常;240 h后,无异常 合格 9 热老化试验2(车规级) 90 ℃×168 h 96 h后,2片显示平面出现气泡,黑白画面均发灰;168 h后,2片显示平面增加裂纹 不合格
5 低温储存试验2(车规级) -40 ℃×28 h 无异常 合格 10 冷热冲击试验2
(车规级)
85 ℃×5.5 h+
-30 ℃×5.5 h+38 ℃&95 %RH×5.5 h,
循环7次
循环3次后,1片显示平面边缘与骨架出现分离现象;循环7次后,无新增不良 不合格
), ArticleFig(id=1200451923594834540, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1200451913767579957, language=CN, label=表3, caption=

电子墨水样件环境试验结果

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序号 试验
项目
试验条件 试验结果 判断
标准
试验
结果
序号 试验
项目
试验条件 试验结果 判断
标准
试验
结果
1 冷热冲击试验1 -25 ℃×0.5 h+70 ℃×0.5 h,循环100次 循环50次后,2片显示平面褶皱,边缘与骨架出现分离现象;循环100次后,无新增不良 恢复室温后,显示平面能够正常刷新切变,无破坏痕迹;电子墨水膜片与骨架贴合面无起翘、脱离、分层等现象 不合格 6 高温运行试验 50 ℃&30 %RH×168 h 无异常 恢复室温后,显示平面能够正常刷新切变,无破坏痕迹;电子墨水膜片与骨架贴合面无起翘、脱离、分层等现象 合格
2 热老化试验1 60 ℃&23 %RH×240 h 96 h后,2片显示平面边缘与骨架出现分离现象;168 h后,无新增不良;240 h后,无新增不良 不合格 7 高温高湿运行试验 40 ℃&90 %RH×168 h 无异常 合格
3 高温高湿存储试验 50 ℃&80 %RH×168 h 96 h后,无异常;168 h后,无异常 合格 8 低温运行试验 10 ℃×168 h 无异常 合格
4 低温
储存试验1
-25 ℃×240 h 96 h后,无异常;240 h后,无异常 合格 9 热老化试验2(车规级) 90 ℃×168 h 96 h后,2片显示平面出现气泡,黑白画面均发灰;168 h后,2片显示平面增加裂纹 不合格
5 低温储存试验2(车规级) -40 ℃×28 h 无异常 合格 10 冷热冲击试验2
(车规级)
85 ℃×5.5 h+
-30 ℃×5.5 h+38 ℃&95 %RH×5.5 h,
循环7次
循环3次后,1片显示平面边缘与骨架出现分离现象;循环7次后,无新增不良 不合格
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序号 问题描述 问题分析 优化方向
1 膜片中间层出现白色气泡点 局部微胶囊层与ITO导电层分离,电压无法施加驱动导致变白(图8 分层主要原因为微胶囊层与电极层之间的胶水脱离,可考虑提高胶水耐高温性能
2 膜片颜色发灰 高温下微胶囊外壁出现坍缩和破裂,导致胶囊内的颜色粒子紊乱 目前难以解决微胶囊高温(≥90 ℃)限制问题
3 膜片内部出现裂纹 推测原因为高温使微胶囊薄膜层干涸开裂 目前难以解决微胶囊高温(≥90 ℃)限制问题
), ArticleFig(id=1200451923821326963, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1200451913767579957, language=CN, label=表4, caption=

热老化后的失效现象分析及优化方向

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序号 问题描述 问题分析 优化方向
1 膜片中间层出现白色气泡点 局部微胶囊层与ITO导电层分离,电压无法施加驱动导致变白(图8 分层主要原因为微胶囊层与电极层之间的胶水脱离,可考虑提高胶水耐高温性能
2 膜片颜色发灰 高温下微胶囊外壁出现坍缩和破裂,导致胶囊内的颜色粒子紊乱 目前难以解决微胶囊高温(≥90 ℃)限制问题
3 膜片内部出现裂纹 推测原因为高温使微胶囊薄膜层干涸开裂 目前难以解决微胶囊高温(≥90 ℃)限制问题
), ArticleFig(id=1200451923930378870, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1200451913767579957, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
序号 问题描述 问题分析 优化方向
1 膜片
褶皱
变色模组属于多层结构,各层结构具有不同的线性热膨胀冷缩系数,在样件尺寸较大的情况下,冷热交变导致不同层的缩放尺寸不一致,从而出现褶皱(图4 开发有相近似的线性热膨胀冷缩系数的模组各层材料
2 膜片边缘与骨架分离 本文所用转饰条骨架型面存在一定的三维弧面,而OCA胶层与骨架层的冷缩变化不一致,导致分离 寻找适合曲面贴合的OCA光学胶
), ArticleFig(id=1200451925075423865, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1200451913767579957, language=CN, label=表5, caption=

冷热冲击后的失效现象分析及优化方向

, figureFileSmall=null, figureFileBig=null, tableContent=
序号 问题描述 问题分析 优化方向
1 膜片
褶皱
变色模组属于多层结构,各层结构具有不同的线性热膨胀冷缩系数,在样件尺寸较大的情况下,冷热交变导致不同层的缩放尺寸不一致,从而出现褶皱(图4 开发有相近似的线性热膨胀冷缩系数的模组各层材料
2 膜片边缘与骨架分离 本文所用转饰条骨架型面存在一定的三维弧面,而OCA胶层与骨架层的冷缩变化不一致,导致分离 寻找适合曲面贴合的OCA光学胶
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电子墨水技术在汽车内饰上的应用探索
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滕永泉 , 任晓康 , 彭宏 , 杨平 , 彭云
汽车工艺与材料 | 材料应用 2024,(12): 62-66
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汽车工艺与材料 | 材料应用 2024, (12): 62-66
电子墨水技术在汽车内饰上的应用探索
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滕永泉, 任晓康, 彭宏, 杨平, 彭云
作者信息
  • 广州汽车集团股份有限公司汽车工程研究院, 广州 511434
  • 滕永泉(1981—),男,工程师,学士学位,研究方向为汽车内饰件的产品开发和设计。

The Application Exploration of Electronic Ink Technology in Automotive Interiors
Yongquan Teng, Xiaokang Ren, Hong Peng, Ping Yang, Yun Peng
Affiliations
  • GAC Automotive Research & Development Center, Guangzhou 511434
出版时间: 2024-12-20 doi: 10.19710/J.cnki.1003-8817.20240198
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为探索电子墨水与内饰零件集成的可行性,依据电子墨水的特性,将柔性段码式电子墨水膜片与某车型的装饰条集成,并进行车规级试验,环境试验结果表明:电子墨水膜片或模组能够耐受-40~70 ℃的高低温区间,温度超过70 ℃会破坏电子墨水层;-30~85 ℃区间的温度交变试验易导致模组多层结构发生褶皱或分层。因此,电子墨水的结构和材料暂无法满足车规级要求,电子墨水在汽车内、外饰零件上具备应用潜能,有待进一步研究。

电子墨水  /  汽车内饰  /  变色  /  微胶囊

Based on the characteristics of e-ink, flexible segment-code e-ink diaphragm is used to integrate with the trim strip of a vehicle, in order to explore the feasibility of integrating e-ink and interior parts, and the vehicle specification test is conducted. Environmental tests show that the e-ink diaphragm or module can withstand the high and low temperature range of -40~70 ℃, and the e-ink diaphragm will be damaged if the temperature exceeds 70 ℃. The alternating test in the temperature range of -30~85 ℃ is easy to cause the wrinkle or stratification of the multi-layer structure of the module. Therefore, the structure and material of e-ink cannot fully meet the automobile specification test, and further research is needed to identify the application potential of e-ink in automobile interior parts.

E-ink  /  Automotive interior  /  Color-changing  /  Microcapsules
滕永泉, 任晓康, 彭宏, 杨平, 彭云. 电子墨水技术在汽车内饰上的应用探索. 汽车工艺与材料, 2024 , (12) : 62 -66 . DOI: 10.19710/J.cnki.1003-8817.20240198
Yongquan Teng, Xiaokang Ren, Hong Peng, Ping Yang, Yun Peng. The Application Exploration of Electronic Ink Technology in Automotive Interiors[J]. Automobile Technology & Material, 2024 , (12) : 62 -66 . DOI: 10.19710/J.cnki.1003-8817.20240198
电子墨水又称电子纸,是一种微胶囊电泳显示技术,通过控制电场变化,使电子墨水微胶囊中黑白颜色的带电粒子发生迁移,从而呈现出不同的颜色[1]。当前,电子墨水技术在消费电子领域已有较广泛的应用[2-3],但在汽车内外饰领域的应用较少。作为一种契合无纸化低碳时代的新型界面微胶囊显示技术,如能与汽车内、外饰结合,将为汽车内、外饰零件的开发拓展新的思路。
本文从电子墨水模组原理及结构出发,通过将电子墨水工艺与内、外饰装饰件集成,探索其在内饰产品上的集成方式和设计要求、能否满足车规级要求、如何利用电子墨水技术进行场景交互以及对其在内饰领域的用户体验进行展望,同时总结电子墨水技术车规级应用的瓶颈。
基本原理是液体介质中不同颜色的悬浮带电纳米粒子在电场作用下发生迁移,实现与传统纸张非常接近的反射光谱显示效果,可集成到曲面塑料、聚对苯二甲酸乙二醇酯(Polyethylene Glycol Terephthalate,PET)膜、纸张等表面,可显示颜色及图案变化[4]。电子墨水的原理如图1图2所示[1-5]。其特点与汽车内饰件多曲面、多材质的特性存在极大的契合可能性。
电子墨水具有低功耗、轻薄、对比度高、柔性可变且无闪烁广视角的优点。例如:仅刷新界面耗电,关闭电源后画面可保持;最小厚度可达到1.2 mm;对比度非常高,强光下清晰可见,无液晶反光现象;无闪频且反射光谱与传统纸非常接近,没有蓝光辐射,不会导致用眼疲劳。同时,电子墨水也存在一些缺点,例如:刷新率慢(1~10次/s) ,动态展示效果较差,适用于静态展示;其本身不发光,需要增加外界光源增强显示。
汽车内、外饰零件的色彩和纹理通常难以改变,汽车内饰颜色将伴随车辆的全生命周期。电子墨水作为一种可变色、轻薄、柔性可变的技术载体,若与汽车内饰零件相结合,利用电子墨水的变色性能即可实现零件外观的变色,由此延伸出不同应用场景和交互需求,在未来智能座舱的变革时代具有较大应用潜能。表1所示为本文基于电子墨水的特性和车身内、外饰的交互需求拓展获得的场景示列。
目前电子墨水的技术载体有矩阵式和段码式[6-8]。2种形式的技术方案以及层级结构对比如表2图3所示。矩阵式是以平面电子墨水显示屏的形式存在,作为信息表现和交互的终端,与多维曲面内饰件集成的限制性较强。内饰零件外观造型自由度高,利用柔性基材的段码式能够满足内饰多维自由的造型要求,因此,本文以段码式方案为基础进行拓展。
图4所示为电子墨水膜片的制备工艺流程及电子墨水集成后装饰条的层级结构,不同制造商的制备工艺存在细微的差异[6-8]。考虑到电子墨水制品的防水要求,本文方案在层级结构中引入了上、下2层热熔膜进行封装,同时为防止拼接线外漏和更好地适应大曲面内饰型面的拼接贴合,将层级结构中的PET+氧化铟锡(Indium Tin Oxide,ITO)层替换为柔性电路板(Flexible Printed Circuit,FPC)。将装饰条型面的膜片或模组设计为一个整体,保证内饰型面的完整性。本结构中光学粘胶剂(Optically Clear Adhesive,OCA)用于胶结透明光学元件,具有无色透明、光透过率达95%以上、胶结强度良好,可在室温或中温下固化,且固化收缩小等特点。
本文选择某车型的装饰条作为基材骨架(骨架采用注塑成型,其型面较平整,弧度纵深较小,适合进行电子墨水膜片贴合),根据骨架型面,裁切制备相应形状的电子墨水膜片,段码式柔性基材的电子墨水膜片能在二维曲面内实现一定角度的折弯,单张完整的膜片能够与装饰条进行贴合,装饰条后端存在三面交互的拱面,膜片无法完全贴合,存在微小褶皱,但不影响整体效果。
电子墨水膜片与装饰条骨架进行定位贴合,将膜片作为装饰条的外观面。整个装饰条型面区分为A、B、C 3个区域,每个区域均可单独控制黑白变色,可实现流水渐变效果,如图5所示,实际变色装饰条样件及变色效果如图6所示。
试验所用试样原料为:某车型门饰板装饰条(PC+ABS材质,不做表面处理)、电子墨水膜片或模组(广州某电子墨水模组厂)、模组驱动芯片(广州某电子墨水模组厂)。
试验仪器设备为:SG-1高低温环境试验箱(东莞环仪仪器科技有限公司)。
高低温环境类试验按照某企业标准QJ/GAC 1250.020-2022《门内饰板技术要求及试验方法》进行测试。
电子墨水装饰条集成样件的关键性能要求为:电子墨水膜片自身变色驱动及显示是否正常,膜片与装饰条骨架型面贴合是否可靠。本文共完成10项环境耐久类试验,试验过程及结果如表3所示。其中,冷热冲击和热老化试验中电子墨水膜片、模组结构损坏,但显示变色功能无异常,其他试验项目均合格。
热老化试验表明,电子墨水膜片或模组能够在不超过70 ℃的环境下保持良好的性能,超过70 ℃后,膜片将发生不可逆的损坏,如气泡、发灰或者裂纹等,如图7图8所示。
针对热老化后的失效现象进行分析,如表4所示。
冷热冲击试验结果表明,电子墨水膜片或模组能够在-40~70 ℃的高低温区间内保持良好的性能,而-30~85 ℃的高低温区间内的交变试验易导致模组多层结构褶皱或分层,如图9所示。
针对冷热冲击后的失效现象进行分析,如表5所示。
本文从电子墨水膜片或模组的特性出发,将柔性段码式电子墨水膜片与某车型的装饰条进行集成,探讨了电子墨水与内饰零件集成的可行性,并进行车规级试验,环境类试验结果表明:电子墨水膜片或模组耐受温度为-40~70 ℃,超过70 ℃会损坏模组;-30~85 ℃温度区间内的交变试验易导致模组多层结构褶皱或分层。因此,当前电子墨水自身结构和材料不能完全满足车规级的试验要求。为此,后续可考虑提高电子墨水层级结构中的微胶囊、粘接层胶水的耐高温性能和模组各层级材料的热膨胀系数的一致性等。
电子墨水在内外饰零件的适用范围包括嵌片注塑(Insert Thermoforming-film to Molding,INS)、模内装饰技术(In Mold Decoration,IMD)、三维表面真空覆膜工艺(Three-dimension Overlay Method,TOM)等覆膜装饰零件、需要集成显示界面的外观件等。柔性段码式电子墨水膜片与型面相对平整的骨架面贴覆较好,但与三维曲面的贴合存在困难。若能实现电子墨水膜片与多维曲面的骨架材质一体成型(类似于INS模内注射成型),电子墨水在汽车内、外饰领域的应用限制问题有望得到解决。
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2024年第卷第12期
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doi: 10.19710/J.cnki.1003-8817.20240198
  • 首发时间:2025-11-26
  • 出版时间:2024-12-20
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    广州汽车集团股份有限公司汽车工程研究院, 广州 511434
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2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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