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GB/T 27816-2011: Binders for paints and varnishes -- Determination of glass transition temperature
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Binders for paints and varnishes -- Determination of glass transition temperature
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GB/T 27816-2011
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Basic data | Standard ID | GB/T 27816-2011 (GB/T27816-2011) | | Description (Translated English) | Binders for paints and varnishes -- Determination of glass transition temperature | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G50 | | Classification of International Standard | 87.040 | | Word Count Estimation | 9,961 | | Date of Issue | 2011-12-30 | | Date of Implementation | 2012-06-01 | | Quoted Standard | GB/T 3186; GB/T 19466.1-2004; GB/T 19466.2-2004 | | Adopted Standard | ISO 16805-2003, MOD | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 23 of 2011 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the use of differential scanning calorimetry (DSC) measurement Paints and varnishes including powder coating binder has a glass transition temperature of the sample preparation methods, test procedures and results primarily expressed such content. | GB/T 27816-2011: Binders for paints and varnishes -- Determination of glass transition temperature
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Binders for paints and varnishes. Determination of glass transition temperature
ICS 87.040
G50
National Standards of People's Republic of China
Paints and varnishes
Determination of the glass transition temperature
(ISO 16805.2003, MOD)
Issued on. 2011-12-30
2012-06-01 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 uses redrafted Law Amendment uses ISO 16805.2003 "Paints and varnishes - Determination of glass transition temperature."
This standard and ISO 16805.2003, compared with more adjustment in the structure, are listed in Appendix A of this standard in Table A.1 and ISO 16805.
Article 2003 of chapter numbering control list.
This standard and ISO 16805.2003 technical differences exist compared to the terms of these differences has been involved through its outer margin bits
Opposed to a single vertical line (|) have been marked, in Table A.2 in Appendix A shows a list of corresponding technical differences and their causes.
The standard proposed by China Petroleum and Chemical Industry Association.
This standard by the National Standardization Technical Committee paint pigment (SAC/TC5) centralized.
This standard was drafted. CNOOC Changzhou coating Chemical Research Institute, Shenzhen Hirota Decoration Group Co., Ltd.
The main drafters of this standard. Peng Jufang, groups such as Hu.
Paints and varnishes
Determination of the glass transition temperature
1 Scope
This standard specifies the determination of paints and varnishes including powder coating binder with a glass transition temperature using differential scanning calorimetry (DSC)
Sample preparation method, the main test procedures and results are shown and so on.
Note. The plastic glass transition temperature measurement methods and procedures, see GB/T 19466.2-2004.
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.
GB/T 3186 Paints, varnishes and raw materials for paints and varnishes - Sampling (GB/T 3186-2006, ISO 15528.2000, IDT)
GB/T 19466.1-2004 plastic differential scanning calorimetry (DSC) - Part 1. General (ISO 11357-1.1997, IDT)
GB/T 19466.2-2004 plastic differential scanning calorimetry (DSC) - Part 2. Determination of glass transition temperature
(ISO 11357-2.1999, IDT)
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
The glass transition glasstransition
Amorphous polymers or amorphous regions of semi-crystalline polymers reversibly between the viscous flow state or rubbery and hard and brittle glassy
Variety.
Note. refers to a polymer molecule began to rotate freely temperatures.
[GB/T 19466.2-2004]
3.2
The glass transition temperature glasstransitiontemperature
The approximate midpoint of the temperature of the glass transition temperature range.
Note 1. Depending on the characteristics of the material and the selected test method and measurement conditions, the measured glass transition temperature (Tg) and the material may be aware of the Tg
Different values.
Note 2. You can also use the so-called initiation temperature (see GB/T 19466.2-2004), the temperature is usually able to define more accurately.
Note 3. In order to avoid slack due to the presence of volatile or residual solvent/water is caused by interference or inaccurate measurements, preferably on the same samples were measured twice,
And second measurement results reported.
[GB/T 19466.2-2004]
3.3
Extrapolated onset temperature Teig extrapolatedonsettemperature
Initial baseline extrapolated curve at the inflection point of intersection of the tangent curve low temperature side.
3.4
Extrapolated end temperature Tefg extrapolatedendtemperature
Initial baseline extrapolated curve at the inflection point of intersection of the tangent curve temperature side.
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