CN103472021A - 一种碳纳米管水性分散体稳定性的定量表征方法 - Google Patents

一种碳纳米管水性分散体稳定性的定量表征方法 Download PDF

Info

Publication number
CN103472021A
CN103472021A CN2013104199503A CN201310419950A CN103472021A CN 103472021 A CN103472021 A CN 103472021A CN 2013104199503 A CN2013104199503 A CN 2013104199503A CN 201310419950 A CN201310419950 A CN 201310419950A CN 103472021 A CN103472021 A CN 103472021A
Authority
CN
China
Prior art keywords
carbon nano
stability
absorbance
borne dispersions
tube water
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2013104199503A
Other languages
English (en)
Inventor
刘巧玲
孙伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Southeast University
Original Assignee
Southeast University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Southeast University filed Critical Southeast University
Priority to CN2013104199503A priority Critical patent/CN103472021A/zh
Publication of CN103472021A publication Critical patent/CN103472021A/zh
Pending legal-status Critical Current

Links

Landscapes

  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

本发明为一种碳纳米管水性分散体稳定性的定量表征方法,为碳纳米管水性分散体稳定性的评价提供了一种有效的方法。其定量表征方法为,a.将碳纳米管水性分散体在紫外分光光度计上进行扫描,确定获得最大吸光度的波长λmax;b.量取碳纳米管水性分散体,至于量筒中,每隔时间t吸取上层溶液,稀释,测定在波长λmax处的吸光度,记为At;贮存时间为0min时,即初始溶液的吸光度记为A0;c.不同贮存时间下碳纳米管水性分散体的稳定度记为Dt,计算公式为

Description

一种碳纳米管水性分散体稳定性的定量表征方法
技术领域
本发明属于碳纳米管的技术领域,具体为一种碳纳米管水性分散体稳定性的定量表征方法。
背景技术
碳纳米管是一种纳米材料,由于存在强大的分子间范德华力,极易团聚,碳纳米管水性分散体在存放过程中会因为稳定性差而再次发生团聚,影响使用效果,目前关于碳纳米管的稳定性表征大多是局限于感官、电镜照片等定性或半定量表征,急需一种碳纳米管水性分散体稳定性的定量表征方法。
发明内容
技术问题:本发明的目的在于提出一种碳纳米管水性分散体稳定性的定量表征方法,解决目前关于碳纳米管的稳定性表征局限于定性或半定量表征受主观因素影响较大等问题。
技术方案:本发明的一种碳纳米管水性分散体稳定性的定量表征方法,采用紫外分光度法测试同一碳纳米管水性分散体在不同贮存时间下的特定波长处的吸光度,然后根据测得的吸光光度值进行不同贮存时间下碳纳米管水性分散体稳定度的定量计算,具体步骤如下:
a.将碳纳米管水性分散体在紫外分光光度计上进行扫描,确定获得最大吸光度的波长λmax
b.量取碳纳米管水性分散体,至于量筒中,每隔时间t吸取上层溶液,稀释,测定在波长λmax处的吸光度,记为At;贮存时间为0min时,即初始溶液的吸光度记为A0
c.不同贮存时间下碳纳米管水性分散体的稳定度记为Dt,计算公式为 D t = 1 - A 0 - A t A 0 .
有益效果:本发明提出了一种碳纳米管水性分散体稳定性的定量表征方法,为碳纳米管水性分散体稳定性的评价提供了一种有效的方法。
具体实施方式
本发明的一种碳纳米管水性分散体稳定性的定量表征方法,采用紫外分光度法测试同一碳纳米管水性分散体在不同贮存时间下的特定波长处的吸光度,然后根据测得的吸光光度值进行不同贮存时间下碳纳米管水性分散体稳定度的定量计算,具体步骤如下:
a.将碳纳米管水性分散体在紫外分光光度计上进行扫描,确定获得最大吸光度的波长λmax,如某一碳纳米光水性分散体在紫外分光光度计上获得最大吸光度的波长为260nm;
b.量取50ml的碳纳米管水性分散体,至于50ml的量筒中,每隔时间t吸取上层溶液100mg,稀释至10ml,测定在波长λmax(此碳纳米管水性分散体为260nm)处的吸光度,记为At;贮存时间为0min时,即初始溶液的吸光度记为A0;如A0=0.8,经过2天后,测试吸光度为A2d=0.7,经过3月后,测试吸光度为A2d=0.65。
c.不同贮存时间下碳纳米管水性分散体的稳定度记为Dt,计算公式为
Figure BDA0000381512570000021
根据上述测试结果,经过2天贮存的此碳纳米管水性分散体稳定度为
Figure BDA0000381512570000022
经过3月贮存的此碳纳米管水性分散体稳定度为 D 3 m = 1 - 0.8 - 0.65 0.8 = 0.813 .

Claims (1)

1.一种碳纳米管水性分散体稳定性的定量表征方法,其特征在于采用紫外分光度法测试同一碳纳米管水性分散体在不同贮存时间下的特定波长处的吸光度,然后根据测得的吸光光度值进行不同贮存时间下碳纳米管水性分散体稳定度的定量计算,具体步骤如下:
a.将碳纳米管水性分散体在紫外分光光度计上进行扫描,确定获得最大吸光度的波长λmax
b.量取碳纳米管水性分散体,至于量筒中,每隔时间t吸取上层溶液,稀释,测定在波长λmax处的吸光度,记为At;贮存时间为0min时,即初始溶液的吸光度记为A0
c.不同贮存时间下碳纳米管水性分散体的稳定度记为Dt,计算公式为 D t = 1 - A 0 - A t A 0 .
CN2013104199503A 2013-09-13 2013-09-13 一种碳纳米管水性分散体稳定性的定量表征方法 Pending CN103472021A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013104199503A CN103472021A (zh) 2013-09-13 2013-09-13 一种碳纳米管水性分散体稳定性的定量表征方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013104199503A CN103472021A (zh) 2013-09-13 2013-09-13 一种碳纳米管水性分散体稳定性的定量表征方法

Publications (1)

Publication Number Publication Date
CN103472021A true CN103472021A (zh) 2013-12-25

Family

ID=49796961

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2013104199503A Pending CN103472021A (zh) 2013-09-13 2013-09-13 一种碳纳米管水性分散体稳定性的定量表征方法

Country Status (1)

Country Link
CN (1) CN103472021A (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106841529A (zh) * 2017-03-10 2017-06-13 南京信息工程大学 一种测定碳纳米管稳定分散水溶液浓度的方法
CN107271386A (zh) * 2017-06-12 2017-10-20 常州第六元素材料科技股份有限公司 一种建立石墨烯浆料稳定性表征模型的方法
CN110057788A (zh) * 2019-05-23 2019-07-26 上海景瑞阳实业有限公司 纳米材料吸光度测试装置、稳定期测试方法、系统及装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1451958A (zh) * 2003-04-04 2003-10-29 中国科学院上海硅酸盐研究所 一种半定量表征碳纳米管悬浮液稳定性的方法
US20060189822A1 (en) * 2005-01-20 2006-08-24 Yoon Seon M Dispersant for dispersing carbon nanotubes and carbon nanotube composition comprising the same
CN101538032A (zh) * 2008-03-20 2009-09-23 中国医学科学院基础医学研究所 制备高浓度稳定碳纳米管水溶液的方法
JP2011185613A (ja) * 2010-03-04 2011-09-22 Nec Corp カーボンナノチューブの単分散性評価方法及び評価装置
US20120132862A1 (en) * 2007-05-14 2012-05-31 Samsung Electronics Co., Ltd Carbon nanotube dispersion and method of preparing transparent electrode using the carbon nanotube dispersion
KR20120108462A (ko) * 2011-03-24 2012-10-05 한국기계연구원 탄소나노튜브 분산도의 정량적 측정방법
WO2012177864A1 (en) * 2011-06-23 2012-12-27 Designed Nanotubes, LLC Nanoplate-nanotube composites, methods for production thereof and products obtained therefrom
CN103113857A (zh) * 2013-02-20 2013-05-22 东南大学 用于氨水吸收式制冷系统的纳米流体及其制备方法

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1451958A (zh) * 2003-04-04 2003-10-29 中国科学院上海硅酸盐研究所 一种半定量表征碳纳米管悬浮液稳定性的方法
US20060189822A1 (en) * 2005-01-20 2006-08-24 Yoon Seon M Dispersant for dispersing carbon nanotubes and carbon nanotube composition comprising the same
US20120132862A1 (en) * 2007-05-14 2012-05-31 Samsung Electronics Co., Ltd Carbon nanotube dispersion and method of preparing transparent electrode using the carbon nanotube dispersion
CN101538032A (zh) * 2008-03-20 2009-09-23 中国医学科学院基础医学研究所 制备高浓度稳定碳纳米管水溶液的方法
JP2011185613A (ja) * 2010-03-04 2011-09-22 Nec Corp カーボンナノチューブの単分散性評価方法及び評価装置
KR20120108462A (ko) * 2011-03-24 2012-10-05 한국기계연구원 탄소나노튜브 분산도의 정량적 측정방법
WO2012177864A1 (en) * 2011-06-23 2012-12-27 Designed Nanotubes, LLC Nanoplate-nanotube composites, methods for production thereof and products obtained therefrom
CN103113857A (zh) * 2013-02-20 2013-05-22 东南大学 用于氨水吸收式制冷系统的纳米流体及其制备方法

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
OK-KYUNG PARK ET AL.: "Effect of surface treatment with potassium persulfate on dispersion stability of multi-walled carbon nanotubes", 《MATERIALS LETTERS》 *
王宝民 等: "碳纳米管的表面修饰及分散机理研究", 《中国矿业大学学报》 *
马彦龙 等: "聚乙烯醇水溶液对多壁碳纳米管分散性的研究", 《精细石油化工进展》 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106841529A (zh) * 2017-03-10 2017-06-13 南京信息工程大学 一种测定碳纳米管稳定分散水溶液浓度的方法
CN107271386A (zh) * 2017-06-12 2017-10-20 常州第六元素材料科技股份有限公司 一种建立石墨烯浆料稳定性表征模型的方法
CN110057788A (zh) * 2019-05-23 2019-07-26 上海景瑞阳实业有限公司 纳米材料吸光度测试装置、稳定期测试方法、系统及装置
CN110057788B (zh) * 2019-05-23 2021-11-05 上海景瑞阳实业有限公司 纳米材料吸光度测试装置、稳定期测试方法、系统及装置

Similar Documents

Publication Publication Date Title
EA200702234A1 (ru) Способ и устройство для оценки загрязнения флюида в скважине
WO2008045799A3 (en) Electrochemical nanosensors for biomolecule detection
CN103472021A (zh) 一种碳纳米管水性分散体稳定性的定量表征方法
O’Carroll et al. Impact of diameter on carbon nanotube transport in sand
WO2009054351A1 (ja) 生体状態評価装置、生体状態評価方法、生体状態評価システム、生体状態評価プログラムおよび記録媒体
CN104897585A (zh) 一种用于mc-lr快速检测的核酸适配体比色传感器的制备方法
Omar et al. A sensing approach for manganese ion detection by carbon dots nanocomposite thin film-based surface plasmon resonance sensor
WO2008090941A1 (ja) Ibdの評価方法、ならびにアミノ酸情報処理装置、アミノ酸情報処理方法、アミノ酸情報処理システム、アミノ酸情報処理プログラムおよび記録媒体
Cooke et al. On the acid− base properties of humic acid in soil
RU2556285C1 (ru) Способ измерения геометрических параметров несферических частиц в жидкости по деполяризованному динамическому рассеянию света и устройство для его осуществления
Rahman et al. Comparison of three methods to estimate organic carbon in allophanic soils in New Zealand
Manninger et al. The effect of temperature and precipitation on growth of beech (Fagus sylvatica L.) in Mátra Mountains, Hungary
Ahmad et al. Development of a tractor-pulled motion resistance test rig for traction studies on towed narrow wheels
Sherson et al. Use of Continuous Real-Time Water Quality Sensors to Examine Hyporheic Exchange between Groundwater and an Alpine Stream: East Fork Jemez River, NM
Asoodeh et al. The role of nanoparticles in the design of electrochemical biosensors for the measurement of diazinon
Morari 13 Soil data from Italy (Veneto)
CN103185711B (zh) 应用于水体重金属检测的检测液及其使用方法
Jiang Raman spectroscopic measurements of H 2 S solubility in water over a wide range of temperature and pressure
Croft et al. Reflectance anisotropy for characterising fine-scale changes in soil surface condition across different soil types
CN204086971U (zh) 一种生猪养殖质量监控装置
Beaumord et al. Assessing environmental integrity in neotropical lotic systems using epilithic diatoms, benthic macroinvertebrates and fish assemblages as biological indicators: A case study of the Itajaí Mirim river in southern Brazil
Smith et al. Combining Observations From a Low-Cost Sensor Ensemble with Machine Learning Techniques to Predict Real-Time Measurements of Criteria Atmospheric Pollutants
Tan et al. Guided ultrasonic waves in steel pipe with welded bend with defect
Zheng et al. Influence of different quality matrix on natural vibration characteristic of bridges
Chappell et al. Demonstrating the Value of Fine-resolution Optical Data for Minimising Aliasing Impacts on Biogeochemical Models of Surface Waters

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C12 Rejection of a patent application after its publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20131225