|
US$209.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 30914-2014: Styrene-isoprene-butadiene rubber (SIBR) -- Determination of the microstructure
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 30914-2014 | English | 209 |
Add to Cart
|
3 days [Need to translate]
|
Styrene-isoprene-butadiene rubber (SIBR) -- Determination of the microstructure
| Valid |
GB/T 30914-2014
|
PDF similar to GB/T 30914-2014
Basic data | Standard ID | GB/T 30914-2014 (GB/T30914-2014) | | Description (Translated English) | Styrene-isoprene-butadiene rubber (SIBR) -- Determination of the microstructure | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G35 | | Classification of International Standard | 83.040 | | Word Count Estimation | 9,946 | | Date of Issue | 7/8/2014 | | Date of Implementation | 12/1/2014 | | Quoted Standard | GB/T 3516-2006; GB/T 6379.2; GB/T 15340-2008 | | Regulation (derived from) | 2014 National Standards Bulletin No. 18 | | 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 styrene was determined by proton nuclear magnetic resonance spectroscopy - isoprene - butadiene rubber (SIBR) method of the monomers microstructure. This standard applies to the determination of the Central African SIBR block s | GB/T 30914-2014: Styrene-isoprene-butadiene rubber (SIBR) -- Determination of the microstructure---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Styrene-isoprene-butadiene rubber (SIBR). Determination of the microstructure
ICS 83.040
G35
National Standards of People's Republic of China
Styrene - isoprene - butadiene rubber (of SIBR)
Determination of microstructure
Styrene-isoprene-butadienerubber (SIBR) -
Issued on. 2014-07-08
2014-12-01 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.
The standard proposed by China Petroleum and Chemical Industry Association.
This standard by the National Standardization Technical Committee rubber and rubber products, synthetic rubber Technical Committee (SAC/TC35/SC6)
Centralized.
This standard was drafted. China Petroleum and Chemical Corporation Beijing North Branch of the Academy of Yanshan, China National Petroleum Corp.
Lanzhou Chemical Research Center.
The main drafters of this standard. Wu Chunhong, Bo Shaohua, Wang feet away, Kuan.
Styrene - isoprene - butadiene rubber (of SIBR)
Determination of microstructure
Warning --- personnel should use this standard regular laboratory work experience. This standard does not point out all possible security asked
Questions, the user has the responsibility to take appropriate safety and health practices and to ensure compliance with the conditions relevant national regulations.
1 Scope
This standard specifies the determination using proton nuclear magnetic resonance spectroscopy styrene - isoprene - butadiene rubber (SIBR) monomer microstructure
method.
This standard applies to the determination of the Central African SIBR block styrene, styrene block, the total styrene, 1,2-butadiene structure, 1,4-butadiene knot
Structure, 1,2-structure isoprene, isoprene, 1,4-structure isoprene and 3,4-structure content.
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.
Determination of matter GB/T 3516-2006 rubber solvent extraction
GB/T 6379.2 measurement methods and results of Accuracy (trueness and precision) - Part 2. Determine the standard measurement method to repeat
Of the basic methods of reproduction
GB/T 15340-2008 natural and synthetic rubber raw sampling and sample preparation method
3 Method Summary
The samples were extracted SIBR was dissolved in deuterated chloroform, under the given parameters, the measured H NMR sample to give
Block structure and the peak area of \u200b\u200b1,4 butadiene, 1,2-structure, the structure of 3,4-isoprene, 1,4-structures and 1,2-structure, non-block styrene
Alkenyl peak area. SIBR to determine the structure of different monomers by chemical shift and the integrated area value of protons in different chemical environments
content.
4 Reagents
4.1 deuterochloroform (CDCl3). purity > 99.8%, containing ≤0.03% tetramethylsilane (TMS) as the internal standard.
4.2 ethanol - toluene azeotrope (ETA). anhydrous ethanol and toluene by volume mixing ratio of 7/3.
4.3 acetone. AR.
5 Instruments
5.1 NMR spectrometer. a 400MHz NMR spectrometer or a Fourier transform of the higher frequencies (FT-NMR).
5.2 extractor. comply with GB/T 3516-2006 of.
5.3 vacuum oven. the temperature can be controlled at 50 ℃ ~ 60 ℃; the degree of vacuum < 133Pa.
|