GB/T 30447-2013 (GBT 30447-2013)

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GB/T 30447-2013
Measurement method for contact angle of nano-film surface
ICS 81.040.10
Q34
National Standards of People's Republic of China
Nano-film contact angle measurement method
Issued on. 2013-12-31
2014-10-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
This standard was proposed by the Chinese Academy of Sciences.
This standard by the National Standardization Technical Committee of nano technology (SAC/TC279) centralized.
This standard drafting units. China Building Materials Science Research Institute, China Building Materials Certification & Inspection Group Co., Ltd. Xuancheng Jing
Rui New Materials Co., Ltd., Beijing in Ke Saina (glass) Technology Co., Ltd., Metallurgical Industry Information Standards Institute.
The main drafters of this standard. Pang Shi-hong, Zhang Jijun, Hansol, Daishi Feng, Xu Jin, Zhang Heng, Zhang Qinghua, Wangrun Mei, Wang Chuang, Zhang Ping,
Zhang clumps.
Nano-film contact angle measurement method
1 Scope
This standard specifies the terms nanometer film contact angle measurements involved, principle, test equipment, environment, sample preparation, analysis step, the results
Calculations and test reports.
This standard applies to the substrate surface smooth nano-film coating.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
Laboratory use specifications and test methods GB/T 6682-2008 Analysis
GB/T 8170 repair value expressed about the rules and limit values \u200b\u200band judgment
GB/T 19619 nanomaterials term
GB/T 24368-2009 hydrophobic glass surface dirt detection contact angle measurements
YY/T 0282 needle
3 Terms and Definitions
GB/T 19619 and defined by the following terms and definitions apply to this document.
3.1
The contact angle contactangle
Gas gas, liquid and solid junction - liquid interface and solid - liquid interface angle between the tangent. Symbol denoted θ, in degrees (°).
3.2
Sessile drop method sessiledropmethod
It is calculated using the detection method of the contact angle of a droplet measuring the measurement surface of the drop shape.
3.3
Static contact angle staticcontactangle
Droplet volume constant contact angle of the sessile drop method at a specified time measurement. Symbol denoted θsta, in degrees (°).
3.4
Advancing contact angle advancingcontactangle
Not with the droplet volume increases and changes in the contact angle of the liquid-solid interface to replace the gas-solid interface formed in the process. Symbol denoted θadv, units
Degrees (°).
4 measuring principle
1, a liquid drop on a solid surface, solid - liquid - gas-phase junction for gas - liquid interface tangent, the tangent and the solid-liquid deposit
It is the angle between the line between the contact angle. For a given system, the contact angle depends on the size of the three-phase interface (liquid/gas, solid/gas and liquid/solid) Room
Interaction.